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  • Exploration of Social Sustainability in Healthcare Supply Chain
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Matloub Hussain, Mian M. Ajmal, Angappa Gunasekaran, Mehmood Khan

    Social sustainability is concerned with the human side of sustainability. The literature indicates a growing movement towards adopting social practices in the supply chain, and despite the diffusion of the topic, it appears that social sustainability is relatively new in the service sector in general and in the healthcare sector in particular. This study explored this issue and identified the motivators, barriers, and enablers of social sustainability in a healthcare supply chain with the lens of “stakeholder theory” and a focus on four stakeholder groups: suppliers, employees, patients/community and owners/government. These aspects were further explored using a structured research method and specific research objectives. The SIPOC chart was used to list the healthcare suppliers, the inputs (such as employees) supplied and used by main processes in healthcare, the outputs (products and services) of these processes, and their customers (patients and community). This facilitates linkages of different supply chain stakeholders. This is exploratory research; data were collected from various departments of 10 hospitals of United Arab Emirates (UAE), and a comprehensive depiction of what drives, inhibits, and facilitates social sustainability practices in healthcare as perceived by all stakeholders’ groups was formulated. Study results confirmed that, while separate attention to each stakeholder group is important, a comprehensive analysis of all stakeholders’ perceptions of what constitutes a socially sustainable supply chain would offer more benefits and help hospital managers balance the expectations of all involved parties.

    更新日期:2018-08-21
  • Enzymatic polymerization of catechol under high-pressure homogenization for the green coloration of textiles
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Jing Su, Jennifer Noro, Jiajia Fu, Qiang Wang, Carla Silva, Artur Cavaco-Paulo
    更新日期:2018-08-21
  • Vegetable farmers’ knowledge, attitude and drivers regarding untreated wastewater irrigation in developing countries: A case study in Iran
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Hamideh Maleksaeidi, Sakineh Ranjbar, Farzad Eskandari, Mohammad Jalali, Marzieh Keshavarz

    Untreated wastewater irrigation is a popular practice in developing countries, particularly those with poor wastewater treatment facilities. Whilst wastewater irrigation has harmful effects on the human health and the environment, little is known about knowledge and attitude regarding this source of water among farmers who use it as well as their reasons for irrigation using it. This cross-sectional survey study was conducted to explore knowledge and attitude of Iranian wastewater users towards this water resource. Also, their drivers for untreated wastewater irrigation were explored. Results indicated that farmers have a relatively high knowledge about the inappropriate quality of untreated wastewater and its negative effects. Although they were concerned about the health, environmental and social impacts of untreated wastewater, they believed that using this water resource is economically profitable for them. The Bayesian Network (BN) and Partial Least Squares (PLS) path modeling was used to clarify factors influencing attitude towards untreated wastewater irrigation. Analysis of the causal models specified that knowledge, moral norm and social cohesion significantly affects attitude towards untreated wastewater. Also, social cohesion moderated the effects of knowledge and subjective norm on attitude. The study clarified that the most important drivers for using untreated wastewater for irrigation by farmers were water scarcity, increasing crop yield, decreasing production costs, difficulty to access freshwater, saving freshwater and increasing soil fertility. The results of this study highlighted the need for planning to improve wastewater treatment along with appropriate policies and methods to improve farmers' commitment for the environmental conservation and the human health.

    更新日期:2018-08-21
  • Impacts of regional governmental incentives on the straw power industry in China: A game-theoretic analysis
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Wen Wen, P. Zhou

    China's straw power industry has been suffering from feedstock deficiency since the very beginning. Some local governments propose to offer price incentives to farmers or brokers on straw transaction activities. This paper aims to evaluate the impacts of such incentives and explore feasible ways for maximizing the potential positive effects. Both non-cooperative and cooperative game models are constructed for the members in a typical straw supply chain of China. The equilibrium decisions, payoffs, and social benefits are derived and compared analytically, while numerical experiments are set up for testing the analytical results and extending potential discussions. It is found that the incentives could not only enhance the straw transaction volume, but also benefit the straw supply chain members and the society. Meanwhile, the incentive effects are equal regardless of whether brokers or farmers act as the recipients. However, brokers may have larger bargaining power and grab more subsidizing benefits from farmers in the non-cooperative case. When the straw power plant works cooperatively with brokers, the subsidies may be shared equally and induce higher social benefits. In addition, the subsidies may work better when farmers have higher monetary sensitivity. It is thus suggested that the local governments should offer price incentives to either farmers or brokers on straw transaction activities and facilitate the cooperation between straw power plants and brokers. In particular, the governments should exert more incentive effort in relatively poor regions where farmers tend to be more monetary sensitive.

    更新日期:2018-08-21
  • Sustainable bridge design by metamodel-assisted multi-objective optimization and decision-making under uncertainty
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Tatiana García-Segura, Vicent Penadés-Plà, Víctor Yepes

    Today, bridge design seeks not only to minimize cost, but also to minimize adverse environmental and social impacts. This multi-criteria decision-making problem is subject to variability of the opinions of stakeholders regarding the importance of criteria for sustainability. As a result, this paper proposes a method for designing and selecting optimally sustainable bridges under the uncertainty of criteria comparison. A Pareto set of solutions is obtained using a metamodel-assisted multi-objective optimization. A new decision-making technique introduces the uncertainty of the decision-maker's preference through triangular distributions and thereby ranks the sustainable bridge designs. The method is illustrated by a case study of a three-span post-tensioned concrete box-girder bridge designed according to the embodied energy, overall safety and corrosion initiation time. In this particular case, 211 efficient solutions are reduced to two preferred solutions which have a probability of being selected of 81.6% and 18.4%. In addition, a sensitivity analysis validates the influence of the uncertainty regarding the decision-making. The approach proposed allows actors involved in the bridge design and decision-making to determine the best sustainable design by finding the probability of a given design being chosen.

    更新日期:2018-08-21
  • Dose urban landscape pattern affect CO2 emission efficiency? Empirical evidence from megacities in China
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Shijie Li, Chunshan Zhou, Shaojian Wang, Jincan Hu
    更新日期:2018-08-21
  • Synthesis of pumice-TiO2 nanoflakes for sonocatalytic degradation of famotidine
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Tannaz Sadeghi Rad, Alireza Khataee, Berkant Kayan, Dimitrios Kalderis, Sema Akay
    更新日期:2018-08-21
  • Accounting for the impact of agricultural land use practices on soil organic carbon stock and yield under the area of protection natural resources - Illustrated for Flanders
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Lieselot Boone, R.A.F. Alvarenga, Veerle Van linden, Isabel Roldán-Ruiz, Bart Vandecasteele, Steven De Meester, Hilde Muylle, Jo Dewulf
    更新日期:2018-08-21
  • An extensive study to assess the sustainability drivers of production performances using a Resource-Based View and Contingency analysis
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Matteo Mario Savino, Muhammed Shafiq

    This study is focused on the investigation of the main sustainability drivers that may improve production performances for Asian firms. The main objective of the paper is to unfold the potential tangible and intangible sustainability resources that can act as strategic assets in improving production performances, with the Resource-Based View as the main framework used in the study. As a further investigation, the research explores how these resources may vary under the contingency perspective, by considering two different stages of implementation of Quality Management Systems within the respondents. These issues are examined through a wide survey of textile firms in India and Pakistan, using Structural Equation Modelling as the main tool for investigation. Some of the main outcomes show that Environmental Management and Safety Management result in the strategic use of resources to improve production performances. It emerges from the contingency analysis that increasing importance is given to intangible assets by those firms that are at an advanced stage of implementation of their Quality Management System.

    更新日期:2018-08-21
  • The potential to reduce GHG emissions in egg production using a GHG calculator – a Cool Farm Tool case study
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Sylvia H. Vetter, Daniella Malin, Pete Smith, Jonathan Hillier

    Models and tools are used to estimate greenhouse gas (GHG) emissions in agriculture from management processes when measurements are not available. The Cool Farm Tool is widely used by farmers for this purpose. Previously, methods to calculate emissions from crop production have been presented; this paper focuses on the livestock part of the tool. GHG emissions from livestock include enteric methane emissions from ruminants, nitrous oxide and methane emissions from manure management, land use and land-use change, feed production, processing and transport. A case study is presented of 10 large-scale egg producers, who used the Cool Farm Tool over three years to calculate their emissions. The highest GHG emissions were produced through feed, followed by transport and manure management. Through using the tool, the farmers became aware of the sources of emissions in egg production and without targets, took action to reduce emissions. The results show that the averaged GHG emissions decreased over the three years of the study by nearly 25%.

    更新日期:2018-08-21
  • The effects of China’s western development strategy implementation on local ecological economic performance
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-21
    Fuxia Yang, Mian Yang, Bing Xue, Qiaoling Luo

    In this paper, we try to investigate the effects of China’s Western Development Strategy (WDS), carried out since 2000, on local ecological economic performance. We first construct an eco-productivity index that incorporates economic growth, inputs saving, and emissions reduction within an integrated analysis framework. Then the eco-productivity scores of 30 administrative provinces in China’s over 1996-2015 are evaluated with sequential data envelopment analysis technique. The results indicate the eco-productivity score in the east and central area (ECA) declines continuously over the whole study period, while that in the west area (WA) increases persistently since 2000 when the WDS was launched. We infer from the narrowing gap of eco-productivity scores between the two areas that China’s WDS implementation has promoted local ecological economic development to a certain extent. In subsequent, this preliminary inference is further verified by conducting an empirical test.

    更新日期:2018-08-21
  • The hindrance to using prefabrication in Hong Kong’s building industry
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Wei Zhang, Ming Wai Lee, Lara Jaillon, Chi-Sun Poon

    Prefabrication is considered an important solution to tackle the issues of construction waste generation, and the high-risk and labour-intensive activities associated with conventional construction methods. This study assesses the key hindrances of adopting prefabrication and provides recommendations for promoting prefabrication in Hong Kong. Twenty-two hindrances were identified in the literature and classified in six groups. A questionnaire survey and face-to-face interviews were conducted to examine the level of importance of the barriers, and to provide comprehensive analyses of each hindrance. The most significant hindrances were “Inflexible for design change”, “Lack storage space on site”, “Long lead-in time”, “Long design time”, “High initial cost” and “High total cost”. Based on the findings of the survey and interviews, five recommendations were proposed to promote the usage of prefabrication in Hong Kong such as “Just-In-Time philosophy”, “BIM technology”, “Potential government measures”, “Encouragement of design and building procure” and “Increase the consumer’s confidence”.

    更新日期:2018-08-20
  • Modelling port competition for intermodal network design with environmental concerns
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Xinglu Xu, Qi Zhang, Wenyuan Wang, Yun Peng, Xiangqun Song, Ying Jiang

    In the fast-moving and competitive market conditions, port operators need to improve their competitiveness to attract more customers. With the rise of stakeholders' (e.g., shippers and port operators) environmental concerns, intermodal transport offers an opportunity to reduce environmental impacts and improves port competitiveness, due to the benefit on environmental protection. However, it is a challenge to understand how port operators make their plans for intermodal network design with consideration for port competition, shippers' route choice behaviors and environmental concerns of stakeholders. In this paper, we develop a game-theoretical model of port competition with environmental concerns. A logit model is used to formulate shippers' discrete choice behaviors. With respect to the probability of nonexistence of pure Nash equilibrium, we propose an approximate equilibrium and a corresponding solution algorithm. A case study on the competition between Dalian port and Yingkou port in the northeast of China is used to verify the effectiveness of the proposed model and algorithm. Results show that, in competitive settings, the rise of stakeholders' environmental concerns will make the market less competitive and always be beneficial to the port closer to the market (here Yingkou port). Moreover, when shippers pay more attention to the environment, the total CO2e emissions will decrease. As the number of dry ports increases, the CO2e emissions will decrease. There are also some interesting findings of effects of environmental concerns on the intermodal network, profits, and CO2e emissions.

    更新日期:2018-08-20
  • Complex assessment of reconstruction works on an institutional building: A case study
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Jan Fořt, Pavel Beran, Zbyšek Pavlík, Robert Černý

    Energy demands of current buildings present an important problem for building designers and engineers. However, the necessity to retrofit building envelopes and achieve a better thermal performance is substantially limited by the economic viability. Despite of the environmental benefits accompanied with enhanced thermal stability, a complex evaluation of the impact of reconstruction works from various perspectives is still needed. In this paper, a quantification of physical, social, economic, and environmental benefits resulting from the application of exterior thermal insulation system to an institutional building is presented. The temperature profiles in the wall cross-section are used for the assessment of the effect of expanded polystyrene boards. The annual energy consumption and carbon emission production is found to decrease by 46 % as the result of better thermal performance. The improved social comfort is confirmed by the evaluation of predicted mean vote characterizing the average heat sensation of building occupants. The carbon payback of 3.24 years refers to low initial environmental burden in proportion to obtained energy savings. However, full investments recovery rate varying from 43 to 60 years in dependence on applied economic scenarios reaches almost the lifetime of used materials, which presents a substantial barrier despite of the discounted cost savings of 180,000 Euros during the 60-year lifespan.

    更新日期:2018-08-20
  • Location selection of offshore wind power station by consensus decision framework using picture fuzzy modelling
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Xue-yang Zhang, Xiao-kang Wang, Su-min Yu, Jian-qiang Wang, Tie-li Wang

    Under the double pressure of global energy tightening and energy saving, new renewable energy sources, especially offshore wind power, have become considerably popular. To promote the development of offshore wind power projects, there has been an urgent push towards the research on selecting a satisfactory offshore wind power station site. However, existing methods have ignored the consensus problem embedded in the selection process. With the aim of addressing this issue, we devote our effort to developing a consensus decision framework. To this end, we employ the picture fuzzy set (PFS) to collect and describe large amounts of uncertain evaluation information for distinctive sites. Then, some relative projection models for PFSs are developed to support the determination of importance weights of groups of decision makers who are invited to evaluate the performance of alternative sites. Subsequently, a consensus reaching process is presented to guarantee that each group is satisfied with the final selection. Finally, the classical technique for order preference by similarity to an ideal solution method is extended to reasonably select the most suitable site without a subjective supply for criteria weights. A case study on the location selection of offshore wind power station illustrates the validity and applicability of the framework. Through this work, we believe that the models and methods in different phases of our framework can be valuably applicable to similar problems and significantly beneficial to the promotion of PFS theory.

    更新日期:2018-08-20
  • Options for labelling circular products: Icon design and consumer preferences
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    María D. Bovea, Pilar Quemades-Beltrán, Victoria Pérez-Belis, Pablo Juan, Marta Braulio-Gonzalo, Valeria Ibáñez-Forés
    更新日期:2018-08-20
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  • Environmental Regulation and the Pollution Haven Hypothesis: Do Environmental Regulation Measures Matter?
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Jing Yang, Huanxiu Guo, Beibei Liu, Rui Shi, Bing Zhang, Weili Ye

    This paper examines the how new manufacturing firms choose locations in response to the environmental regulations in Jiangsu, China. In particular, we utilize three representative measures of the environmental regulations to test the consistence of the Pollution Haven Hypothesis (PHH). The dramatic results indicate that different measures of environmental regulation lead to different conclusions of the PHH. However, firms’ relocation patterns are common and consistent, i.e., new polluting firms are more likely to be driven by the government environmental mandates to northern Jiangsu, where the pollution abatement cost is high. This pattern is consistent with the industrial planning of the province, suggesting that local government may use environmental regulations to achieve economic objectives. More comprehensive and equitable policy design is thus recommended to address the problems of environmental equity in China.

    更新日期:2018-08-20
  • Managing transportation externalities in the Pyrenees region: Measuring the willingness-to-pay for road freight noise reduction using an experimental auction mechanism
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Laurent Denant-Boemont, Javier Faulin, Sabrina Hammiche, Adrian Serrano-Hernandez

    The estimation of the noise impact caused by road freight transportation is critical to have acknowledgment of the ambiance pollution caused by road traffic crossing geographical areas containing important natural resources. Thus, our work proposes a within-subject survey where a Contingent Valuation Method (CVM) is combined with a laboratory economic experimental auction. Our study objective is to measure the willingness-to-pay (WTP) for reducing traffic noise nuisances due to freight transportation in the region of Navarre, Spain. A special focus is made regarding the measurement of the hypothetical bias, when a comparison is done between hypothetical WTP, coming from the CVM study, with real-incentivized one, as the outcome of the economic experiment. Additionally, statistical analyses are conducted in order to find explanation factors for these outcomes. Results suggest a strong evidence for an upward hypothetical bias (from 50% to 160%) indicating the income, the educational level, the gender, and the age as the main factors which explain that bias.

    更新日期:2018-08-20
  • A Novel Systematic Methodology for Ship Propulsion Engines Energy Management
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Konstantinos Tsitsilonis, Gerasimos Theotokatos

    Establishing an energy monitoring and management methodology is a quintessential milestone for informed energy savings decision making as well as for effectively reducing the cost and the environmental impact of shipping operations. In this study, a novel systematic methodology is proposed for the energy management of the ship propulsion engine, which is the largest ship energy producer. The methodology employs a combination of tools including statistical analysis, predicting the engine air flow via compressor modelling and energy and exergy analyses, whereas its output includes the engine operating profile, the most frequently occurring propeller curves and the engine most frequent operating points, the key performance indicators for quantitatively assessing the recorded parameters quality as well as the energy and exergy flows and exergy destruction of the engine components. The methodology is implemented for three case studies for a very large crude carrier, a container ship and a bulk carrier, for which recorded data were available by using different monitoring techniques from either noon reports of automatic data acquisition systems. The derived results provide the engine operating profile demonstrating that the investigated vessels were operating in slow steaming conditions with a lower engine efficiency associated with a greater exhaust gas wasted energy. The measured data analysis demonstrates the better quality of the data recorded by automated monitoring systems and pinpoint maintenance issues of the engine components. Lastly, the exergy analysis results demonstrate that the exhaust gas and jacket cooling water provide the greater exergy flows rendering them attractive for energy saving initiatives, whereas the engine block, compressor and turbine are the engine components with the greater exergy destruction, thus requiring closing monitoring for timely identifying mitigating measures.

    更新日期:2018-08-20
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  • Exploring the driving forces of energy-related CO2 emissions in China’s construction industry by utilizing production-theoretical decomposition analysis
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-20
    Miao Wang, Chao Feng

    The construction industry is one of the largest energy consumers and CO2 emitters in China. This paper primarily aimed to explore the driving forces of energy-related CO2 emissions (ECE) from the construction industry. Adopting a comprehensive decomposition approach, this study decomposes the changes in ECE into eight factors. The main results provide the following findings. (1) Industrial activity was the largest factor pushing the growth of CO2 emissions, driving up CO2 emissions in all years and contributing to a 174.65 Mt CO2 emissions increase in total. (2) In contrast, advances in industrial output technology represented the dominant factor inhibiting CO2 emissions, cumulatively reducing CO2 emissions by 99 Mt. (3) The effects of potential energy intensity changes and industrial output technical efficiency fluctuated in different years but exerted positive effects on CO2 emissions over the entire period. (4) Additionally, changes in spatial structure, energy-saving technology, and energy consumption structure as well as energy usage efficiency all contributed to emissions reductions to varying degrees. The CO2 emissions of the construction industry increased in all provinces, while emissions changes and their factor effects varied distinctly across provinces.

    更新日期:2018-08-20
  • 更新日期:2018-08-20
  • Algae toxicological assessment and valorization of energetic-laden wastewater streams using Scenedesmus obliquus
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Juliana Abraham, Yanxia Lin, Abhishek RoyChowdhury, Christos Christodoulatos, Matthew Conway, Benjamin Smolinski, Washington Braida
    更新日期:2018-08-18
  • Environmental life cycle assessment of electric vehicles in Poland and the Czech Republic
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Dorota Burchart-Korol, Simona Jursova, Piotr Folęga, Jerzy Korol, Pavlina Pustejovska, Agata Blaut

    Electric vehicles (EVs) are the future of road transport in both Poland and the Czech Republic and offer significant potential for reducing air pollution and increasing life comfort, especially in crowded city centers. This paper presents a comparative life cycle assessment (LCA) of EVs in Poland and the Czech Republic, considering the life cycle from cradle to grave, with a special focus on the production of the electricity required to charge EV batteries. The analyses included the current and future energy systems (from 2015 to 2050) used to charge EV batteries in the both countries. A comparative analysis of EVs and passenger vehicles with internal combustion engines (ICEVs) was carried out. In addition, the analyses considered scenarios of smart grids from which the energy for the charging of EV batteries could be supplied exclusively from renewable sources. The results showed that the environmental burden of current and future EVs is higher in Poland than in the Czech Republic for all analyzed impact categories and that this result is primarily related to the type of electricity used to charge EV batteries. The comparative analysis of EVs and ICEVs showed that greenhouse gas (GHG) emissions and fossil fuel depletion in Poland and the Czech Republic, both at present and in the future, will be lower in the case of EVs than in the case of ICEVs. However, the acidification, eutrophication, human toxicity, and particulate matter formation caused by EVs are higher than those caused by ICEVs. The results showed that EVs coupled with renewable electricity sources offer the potential to reduce the negative impacts on the environment. It was concluded that the main determinant of the environmental impact of EVs is the type of electricity used to charge EV batteries. This is the first attempt at a comparative LCA of EVs in Poland and the Czech Republic. It is also the first approach that includes analyses of the LCA for both the present and future electricity production systems used for charging EV batteries.

    更新日期:2018-08-18
  • Bicarbonate-rich wastewater as a carbon fertilizer for culture of Dictyosphaerium sp. of a giant pyrenoid
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Cheng Qilu, Xuligen, Cheng Fangmin, Pan Gang, Zhou Qifa

    Microalgae require a large amount of carbon (C) fertilizer for efficient biomass production. We explored the feasibility of using bicarbonate-rich wastewater as a carbon fertilizer for algal cultures and characterized the morphological and physiological features of C-deficient Dictyosphaerium sp. algae. Addition of bicarbonate-rich wastewater to media increased peak algal biomass by more than four-fold, and removal of the bicarbonate from the wastewater decreased the peak algal biomass by more than 3 times, and both the algal biomass productivity and the bicarbonate depletion rate were positively and significantly (P < 0.01) related to the bicarbonate level. We observed a giant pyrenoid in Dictyosphaerium cells. Consistently, this species exhibited an exceptionally high CO2 enrichment and the expression level of limiting CO2 inducible protein gene was extremely high. The disruption in structural integrity was evident in the algae cultured under 0.4 g/L of bicarbonate. Transcript profiling accurately revealed the C and N status in the algae. Our results indicate that the bicarbonate-rich and Na-low wastewater could provide adequate and excellent C source for algal growth.

    更新日期:2018-08-18
  • How rebound effects of efficiency improvement and price jump of energy influence energy consumption?
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Chan Wang, Pu-yan Nie

    Energy efficiency improvement is usually regarded as an effective way to decrease energy consumption and to fight climate change, but it also booms energy consumption through rebound effects. But the improvement of energy efficiency also has rebound effects, which increases energy consumption and emission. So this paper arms to capture the rebound effects of efficiency improvement by considering zero-cost breakthrough of energy efficiency and price jump of energy purchase. First, energy efficiency improvement, measured by zero-cost breakthrough of energy efficiency, stimulates energy consumption, but it may reduce the total emission. Second, both the direct and indirect rebound effects of energy efficiency improvement on energy consumption and environment are captured. Interestingly, jumping energy price decreases both the direct and indirect rebound effect. Finally, the result of the paper shows that restriction of individuals’ entry or competition restriction moderates the rebound effects of energy efficiency improvement.

    更新日期:2018-08-18
  • Circular development of recycled natural fibers from medium density fiberboard wastes
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Qinzhi Zeng, Qiufen Lu, Yonghui Zhou, Nairong Chen, Jiuping Rao, Mizi Fan

    This paper addresses a circular economy strategy for the medium density fiberboard (MDF) industry by effectively recycling fibers from MDF residues as raw materials, additionally reducing waste discharge, preserving the ecological environment, saving the wooden resources, and relieving the shortage of raw materials. The work specifically discussed the characteristics and bonding properties of the recycled fibers from the MDF offcuts by the cooking and beating method. The morphology of the recycled fibers was compared with that of the virgin fibers, and then the chemical characteristics of the recycled fibers were analyzed with XPS. Finally, the bonding properties between the recycled fibers and some virgin fibers were compared. The results showed that the fiber length of the recycled fibers is about 12% shorter than that of the virgin fibers and the percentage of shorter fibers (≤0.68mm) is higher for the former than the latter, in addition, the broken ends ratio of the recycled fibers is 17% higher than that of the virgin fibers, while there is no significant difference in the fiber width and its distribution. SEM and XPS characterizations confirmed that there are some cured UF resin on the surface of the recycled fibers. The MOE, MOR, and IB of the recycled MDF is 5, 10 and 11% respectively lower than those of the fresh MDF manufactured with the virgin fiber, but its TS is 12% lower than that of the fresh MDF, this means that the recycled fiber MDF is more dimensionally stable and water resistant.

    更新日期:2018-08-18
  • The sources of green management innovation: Does internal efficiency demand pull or external knowledge supply push?
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Yuan Ma, Guisheng Hou, Qiyue Yin, Baogui Xin, Yajun Pan

    Compared with the abundant achievements of technological innovation, management innovation is still under-researched in academia. Putting management innovation in the context of environmental issues, this paper seeks to answer two key questions: (1) what factors stimulate green management innovation and (2) how can green management innovation affect firm performance. On the basis of literature review an operational definition of green management innovation is given. Then the relationships between green management innovation, its antecedents and consequences are hypothesized. A total of 267 valid questionnaires from mining industry in China are used. Different from the market pull and technology push of technological innovation, green management innovation is mainly pushed by external knowledge supply, while the internal efficiency demand does not play a significant role in our findings. Moreover, green management innovation has a positive effect on firm economic performance and internal efficiency demand moderates the effect. Our findings provide complementary insights to green management innovation.

    更新日期:2018-08-18
  • Influence of Pre-treated Alum Sludge on Properties of High-Strength Self-compacting Concrete
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    A.B.M.A. Kaish, Khalid Mohammed Breesem, Manal Mohsen Abood

    The disposal of alum sludge (AS) produced from drinking water treatment plants is gradually becoming a threat to the environment. The conventional disposal by landfill is not feasible because AS is considered as hazardous waste. By contrast, treated alum sludge (TAS) contains useful chemical compounds (silicon dioxide and aluminium trioxide which are the main constituents of cement). This study explored the influence of TAS on the production of high-strength self-compacting concrete (HSSCC) made up of 5%, 10%, 15%, 20% and 25% cement replacement. The experimental work was divided into 15 mixes as well as three control mixes with three different water/powder (w/p) ratios (0.36, 0.38 and 0.4). The fresh properties of self-compacting concrete (SCC) were determined via the slump flow, V-funnel, V-funnel at T5 min and L-box tests to meet the flowability requirements. The strength and durability properties of SCC were also tested at different specimen ages. In addition, the effects of elevated temperature on TAS-incorporated concrete were observed at different temperatures for 3 h. Experimental results revealed the encouraging effects of TAS on the fresh, hardened and durability properties of HSSCC with maximum 15% of the cement component partially replaced with TAS. Meanwhile, losses of mass and strength were observed to be higher in the TAS-incorporated SCC than in the control concrete.

    更新日期:2018-08-18
  • Mechanism and Effect of Hydroxyl-terminated Dendrimer as Excellent Chrome Exhausted Agent for tanning of Pickled Pelt
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Qi Yao, Hualin Chen, Henghui Huang, Bailing Liu

    A combination chrome tanning technology which endows leather high chrome exhaustion and thermal property based on hydroxyl-terminated dendrimer (HTD) is reported. The chrome concentration in effluent, denaturation temperature (Td), enthalpy (ΔH), thermal degradation active energy (Ea), crosslinking degree of wet-blue leathers are determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES), differential scanning calorimetry (DSC), thermal gravimetry analysis (TG-DTG), and X-ray diffraction (XRD), respectively. The element (especially chromium) content and distribution of wet-blue leather are also obtained by scanning electron microscopy- energy dispersive spectrometer (SEM-EDS). The results show that the chrome uptake, Td, ΔH and Ea of wet-blue leather tanned with HTD and basic chrome sulphate (HTD-Cr) can reach 94.1%, 117.4 °C and 432.2 J/g, and 153.1 KJ/mol much higher than conventional chrome tanning which is 66.1%, 112.5 °C and 129.2 J/g and 147.2 KJ/mol, respectively. It is because HTD could act as excellent masking agent with good alkaline stability, which slows down the basifying process and promotes chrome penetration towards central of wet-blue leather, resulting in evenly dispersed along the grain layer, middle layer and flesh layer of wet-blue leather. Consequently, crosslinking density of collagen increased, thereby inhibiting the outward diffusion of chrome and improving the chrome uptake. In contrast, for blank trial, the chrome mainly aggregate at grain layer and flesh layer. These results illustrate the chrome tanning promotion mechanism of HTD and provide a valuable insight of developing high exhausted chrome agent based on dendrimer for more sustainable future of leather industry.

    更新日期:2018-08-18
  • Energy Integration in Boiler Section of Thermal Power Plant
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Shivendra Singh Chauhan, Shabina Khanam

    In the present work systematic analysis is carried out for retrofitting of boiler section of the conventional thermal power plant of 250MW capacity with the aim to recover maximum amount of waste heat available in it. Lignite coal is used in this plant as a fuel. For the existing system, pinch point, minimum hot and cold utility requirements are found as 972°C, ‘0’MW and ‘11.09’MW, respectively. Pseudo-pinch point is also found at 272°C and heat flow through it is 9.11MW. It is observed that in the existing plant exit temperature of flue gas through the stack is restricted by dew point of SOx to prevent corrosion in the stack. Dew point of SOx in flue gas is predicted as 122°C. Further, heat from boiler blowdown can also be extracted. Considering waste heat of flue gas as a result of dew point as well as boiler blowdown six different energy integration options are proposed for retrofitting of boiler section. Detailed design and economic analyses are carried out for all these options. Different criteria such as location of additional heat exchanger, amount of flue gas and exit temperature, environmental aspects, %energy savings and maximum temperature across additional heat exchangers are envisaged to choose best retrofitting option. Results of the best option are compared with that of published work.

    更新日期:2018-08-18
  • Looking upstream: the design and development of domestic smart grid interventions. Insights from the Netherlands.
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-18
    Nick Verkade, Johanna Höffken

    When studying smart grids experiments, much scholarly attention is directed at the household level. This article argues for the importance to look “further upstream” by studying the development and design phase of such interventions. The article focusses on the development of two smart grid projects in the Netherlands. Using a set of qualitative research approaches the article investigates and maps the diversity of actors that are typically involved in smart grid projects. Three themes are identified that play a central role in the design of smart energy interventions. Given the type of actors prominent in the design, this article finds that current smart energy interventions are designed based on decisions favouring technological default, certain sticky user-assumptions, and automated control. The discussion covers some implications of the prominence of these particular actors in smart grid projects, and the supply-side biased design that it engenders.

    更新日期:2018-08-18
  • The impact of relationship quality and supplier development on green supply chain integration: a mediation and moderation analysis
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-18
    Sonia M. Lo, Shanshan Zhang, Zhiqiang Wang, Xiande Zhao

    This study aims to understand how relationship quality (top management support and relational governance) influences upstream Green Supply Chain Integration (GSCI) through supplier development. It also examines whether green drivers (customer and cost drivers) moderate the relationship between supplier development and upstream GSCI. The data used in this study are part of the international survey of high-performance manufacturing. Structural equation modeling is applied to 285 samples collected from ten countries. The results show that supplier development fully mediates the relationship between top management support and upstream GSCI and partially mediates the relationship between relational governance and upstream GSCI. Additionally, both cost and customer drivers are found to significantly moderate the relationship between supplier development and upstream GSCI. This study contributes to theory and practice by combining and balancing the interests of suppliers in green integration, examining the enablers of upstream GSCI, and testing the contingent effect of supplier development on upstream GSCI.

    更新日期:2018-08-18
  • Investigation of the mechanical properties and carbonation of construction and demolition materials together with rubber
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-18
    Mohammad Saberian, Jie Li

    One of the ways to improve the strength properties of construction and demolition (C&D) wastes is to adopt the accelerated carbonation technique. The main objective of this study was to evaluate the effects of the eco-friendly carbonation approach on the mechanical properties of C&D aggregates together with crumb rubber. Crumb rubber with particle sizes ranging from 400-600 µm was added to the 20 mm recycled concrete aggregate (RCA) and crushed rock (CR) at 0.5, 1, and 2% by weight percentage of the aggregates. Then, the unconfined compression strength (UCS) and resilient modulus (Mr) tests were conducted on the carbonated RCA and CR samples together with crumb rubber, and the results were compared with those of the uncarbonated specimens. The results showed that the carbonation process led to a significant increase in the UCS values. However, carbonation resulted in a decrease in the deformability of the specimens compared with the uncarbonated specimens. Moreover, carbonation resulted in a significant increase in the Mr values compared with those of the uncarbonated values. Also, the carbonation process had a more substantial effect on the Mr values of the CR than of the RCA.

    更新日期:2018-08-18
  • A top-bottom method for city-scale energy-related CO2 emissions estimation: A case study of 41 Chinese cities
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-18
    Qiaonan Jing, Hongtao Bai, Wen Luo, Bofeng Cai, He Xu

    China has become the world’s largest energy consumer, accounting for approximately 30% of global CO2 emissions. City contributions make up 84% of China’s commercial energy consumption. However, energy consumption data for most Chinese cities are not accessible. Many studies have focused on the estimation of carbon emissions at the provincial or national level; city-level carbon emissions are not well studied. In order to solve this problem, this research constructed a top-bottom method for city-scale energy-related carbon emissions estimation in China. Typically, cities are considered the constituent units of a province. Relying on provincial energy balance tables and utilizing the available city-level socioeconomic data as indicators, we scaled down provincial energy consumption to the city level. We compared our estimation results with city-level point-source data, and found that for the 41 Chinese cities to which we applied this method, the difference was within 10%, while for 25 of these cities, the difference was within 5%. Thus, we believe our method is reasonably accurate. We also subdivided the city carbon emissions into three major energy categories (coal-related, oil-related, and gas-related) and found that the difference could be attributed mainly to coal-related energy emissions. The results of the uncertainty analysis indicated that the uncertainty of the coal emission factor was the largest, thus demonstrating that it is critical not only to choose appropriate indicators to characterize coal-based industrial carbon emissions, but also to identify accurate emission factors for coal-related fossil fuels. Both analyses demonstrated China’s coal-dominant energy structure. We believe our method is practical and can provide detailed data support for the establishment of city-level carbon emission inventories, furthermore, it will also be helpful for Chinese cities to negotiate carbon reduction responsibilities and allocating carbon reduction tasks.

    更新日期:2018-08-18
  • A DEA-based decision Framework to determine the Subsidy Rate of Emission Reduction for Local Government
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-18
    Qiong Xia, Minyue Jin, Huaqing Wu, Chenchen Yang

    Local governments have provided the subsidy policy to help enterprises for their efforts in reducing the emission of carbon dioxide. The current paper discusses the policy decision-making process of a local government on how to determine the best subsidy rate under the consideration of achieving the best comprehensive effect. The policy-making framework introduced to determine the optimal subsidy rate takes three steps. First, a market of distinct products is set up to describe the competitive situation between traditional high-emission product and low-emission green product. Then, the subsidy policy provided by the local government stimulates and supports the companies producing green products and reducing the emissions. Once the subsidy rate is determined, three indicators including government revenue, employment level and pollution emissions used to analyze the influences of the policy upon the government. At last, the selection problem regarded as a multicriteria decision-making (MCDM) problem is solved by Data Envelopment Analysis (DEA) technique. A numerical example is presented to illustrate how our method works.

    更新日期:2018-08-18
  • 更新日期:2018-08-17
  • How do population and land urbanization affect CO2 emissions under gravity center change? A spatial econometric analysis
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Guanglai Zhang, Ning Zhang, Wenmei Liao

    We examines the movement trajectory of gravity centers of China's CO2 emissions on a regional level based on a gravity model, and then investigate the impact of urbanization on CO2 emissions by utilizing an extended Stochastic Impacts by Regression on Population, Affluence and Technology (STIRPAT) model under the change of gravity center. We measure the urbanization in different dimensions including both population and land urbanization. Besides, a panel data between 2005 and 2014 is used for our empirical estimation, and the Spatial Durbin Panel model is used for estimation. The results show that the movement trajectory of gravity centers as a whole moved towards the northwest over the period. With CO2 emissions distribution presenting the characteristics of spatial agglomeration, we utilize the spatial econometric model to capture spatiality. The results show that the effect of population urbanization is insignificant; however, population urbanization has a positive and significant spatial spillover effect. Meanwhile, we find that the impact of land urbanization is significantly positive, while its spatial spillover effect is insignificant. Regarding other socioeconomic factors, it is proved that population scale, energy intensity and GDP per capita have a significantly positive impact, while industrialization level has a negative influence. These novel methodology and findings reveal that policy makers should carefully consider the characteristics of the rapid urbanization growth in China through the establishment of low-carbon urbanization policy standards, and strategies should emphasize China's land-use conditions and promote coordinate development between population urbanization and land urbanization to achieve the sustainable development of urbanization and a low-carbon economy.

    更新日期:2018-08-17
  • Forecasting the number of End-of-life vehicles using a hybrid model based on grey model and artificial neural network
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Hao Hao, Qian Zhang, Zhiguo Wang, Ji Zhang

    This paper aims to better manage the reverse supply chain of the automotive industry in the context of green, circular, and sustainable development by predicting the number of end-of-life vehicles to be recycled through the establishment of a multi-factor model. The prediction of the number of end-of-life vehicles to be recycled in this paper will support the end-of-life vehicle recycling industry in terms of recycling management and investment decision-making and provide a reference for the formulation and implementation of policies relating to end-of-life vehicles. To solve the problems posed by nonlinear characteristics and uncertainty in the number of end-of-life vehicles recycled, and deal with the multiple factors influencing the recycling number, this paper presents a combined prediction model consisting of a grey model, exponential smoothing and an artificial neural network optimized by the particle swarm optimization (PSO) algorithm. Using Shanghai's end-of-life vehicle reverse logistics industry as an example, this study selects historical data about end-of-life vehicles recycled in Shanghai during the 2005-2016 period, identifies multiple influential factors, and validates the effectiveness and feasibility of the prediction model through empirical research. This paper proposes an effective prediction model for end-of-life vehicle industry managers, researchers, and regulators dealing with the industry’s common challenges.

    更新日期:2018-08-17
  • Environmental assessment of thermo-chemical processes for bio-ethylene production in comparison with bio-chemical and fossil-based ethylene
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Bernabé Alonso-Fariñas, Alejandro Gallego-Schmid, Pedro Haro, Adisa Azapagic

    The use of biomass for production of chemicals is gaining interest because of its potential to contribute towards a reduction in greenhouse gas emissions and other environmental benefits linked to the substitution of fossil resources. But, conversely to biofuels, studies focusing on environmental impacts of biomass-derived chemicals are scarce. This paper uses life cycle assessment to evaluate the environmental sustainability of bio-ethylene from poplar produced by the following three thermo-chemical routes: direct and indirect dehydration of ethanol and production of olefins via dimethyl ether. The indirect route is the best option for most impact categories for all three allocation methods considered: system expansion, economic and energy basis. However, the dimethyl ether-to-olefins route has the lowest global warming potential. In comparison to ethylene produced bio-chemically from sugar beet, the thermo-chemical indirect route has lower impacts for all categories except human, terrestrial and freshwater toxicities. All three thermo-chemical alternatives show a significant reduction in global warming potential (up to 105% in the case of dimethyl ether-to-olefins) and depletion of fossil fuels when compared to conventional ethylene production from fossil fuels. However, the results also suggest that bio-ethylene produced by any of the three thermo-chemical routes would lead to a significant increase in most other impact categories relative to fossil fuels. Therefore, while trying to reduce greenhouse gas emissions, the overall environmental sustainability of bio-ethylene suffers from the increase in other environmental impacts.

    更新日期:2018-08-17
  • 更新日期:2018-08-17
  • Cradle-to-gate environmental impacts of sulfur-based solid-state lithium batteries for electric vehicle applications
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Azadeh Keshavarzmohammadian, Sherri M. Cook, Jana B. Milford

    In this study, we investigate the cradle-to-gate environmental impacts of a pre-production sulfur-based solid-state lithium pyrite battery suitable for electric vehicle applications. We apply process-based attributional life cycle assessment methodology, utilizing laboratory data, literature, U.S. patents, and US-EI 2.2 life cycle inventory database to estimate the materials and energy required for the battery and its anticipated manufacturing and assembly processes. We estimate a mass of 440 kg and a specific capacity of 182 Wh kg−1 for a battery with 80 kWh energy capacity and 100 kW power, capable of powering a full-size battery electric vehicle with a 200-mile range. The estimated cumulative energy demand (CED) and global warming potential for a 100-year time horizon (GWP100) are 3300 MJ kWh−1 and 199 kg CO2 eq. kWh−1, respectively. The combination of direct and upstream energy associated with clean dry-room operation accounts for the biggest share of the total CED (75%) and GWP100 (73%), followed by the cathode paste (10% and 6%, respectively). The energy demand and environmental impacts of the clean dry-room and cathode paste present opportunities to improve production processes and reduce costs. CED and GWP100 impacts associated with battery production are lower than well-to-wheel energy consumption and emissions for a vehicle with the same size and range. The pyrite battery delivers higher specific capacity than the current Li-ion battery chemistries while its CED and GWP100 environmental impacts are comparable.

    更新日期:2018-08-17
  • Water sustainability of investors: Development and application of an assessment framework
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Rick J. Hogeboom, Ilja Kamphuis, Arjen Y. Hoekstra
    更新日期:2018-08-17
  • Options for managing alkaline steel slag leachate: A life cycle assessment
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Helena I. Gomes, William M. Mayes, Helen A. Baxter, Adam P. Jarvis, Ian T. Burke, Douglas I. Stewart, Mike Rogerson
    更新日期:2018-08-17
  • Interrelationships amongst factors for sub-supplier corporate sustainability standards compliance: An exploratory field study
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Jörg H. Grimm, Joerg S. Hofstetter, Joseph Sarkis

    Sub-supplier compliance with a focal firm’s corporate sustainability standards (CSS) is increasingly recognized as an important dimension of sustainable supply chain management. This paper draws on recent sub-supplier management studies and their critical success factors (CSFs) to investigate the interrelationships between and strengths of CSFs. While previous research focused on the perspective and practices only of focal firms, this exploratory field study investigated a focal firm, one of its suppliers and one of its sub-suppliers in a multi-tier supply chain setting. Our findings suggest that sub-supplier assessment and collaboration are influenced by (1) the committed long-term relationship between the direct supplier and the sub-supplier, (2) the involvement of the direct supplier, and (3) the focal firm’s buyer-power over the direct supplier. In return, sub-supplier assessment and collaboration influence those and further CSFs in a feedback loop, enabling virtuous or vicious cycle effects. The perspective of the sub-supplier revealed substantial differences to the supplier and the focal firm, in particular the lower feedback loop effect of collaboration on CSFs.

    更新日期:2018-08-17
  • Robust Smart Energy Efficient Production Planning for a General Job-Shop Manufacturing System under Combined Demand and Supply Uncertainty in the Presence of Grid-Connected Microgrid
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Hêriş Golpîra, Syed Abdul Rehman Khan, Yu Zhang

    This paper is the first to introduce the concept of Smart Energy-Efficient Production-Planning (SEEPP) for a general Job-Shop manufacturing system in the presence of Grid-connected Microgrid with wind power generation. To cope with the unpredictability of wind speed and the uncertainties of demands, a novel risk-based Robust Mixed Integer Linear Programming (RMILP) model is mathematically formulated. The last aim of the model is to minimize the total day-ahead cost of the system considering peak demand charge. The results show the capability of the proposed integrated framework to obtain a constructive trade-off between scenario-based cost deviations, and heat and power imbalances considering the attitude of Decision Makers (DMs) toward risk. The results further indicate that the proposed SEEPP concept is able to produce products with at least 1.95% less cost than conventional manufacturing systems, although it supports a much wider range of demands for products. The performance of the model is analyzed and evaluated in terms of accuracy, robustness, and computational efficiency.

    更新日期:2018-08-17
  • Heterogeneity evaluation of China's provincial energy technology based on large-scale technical text data mining
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Bo Wang, Zhaohua Wang

    The rapid growth of the Chinese economy has resulted in great pressure on the environment: technological innovation is the fundamental pathway for improvement the efficiency in the process of energy saving and emission reduction. Based on large-scale technical text data in 31 Chinese provinces from 1985 to 2017, the Latent Dirichlet Allocation (LDA) topic model is introduced to technology content analysis. Then the LDA provincial-topic model is constructed, the subject and object of energy technology are jointly modelled, and the relationship between technology subject and technology have been region studied. The energy saving and emission reduction technology research direction in 31 provinces of China in the past 30 years has been examined: the status and level of technical reserves in each province have been evaluated, and the heterogeneity of provincial patent subject content has been compared. The research found that, despite the cumulative patent record (No. 1 world ranking), similarities in research directions in different provinces of China caused by poor regional technology mobility are a growing problem for Chinese energy technology, indicating much repeated research and development in different regions of China. Targeted suggestions on inter-provincial technology transfer and cooperation on energy technology development have been put forward.

    更新日期:2018-08-17
  • Determining Factors Driving Sustainable Performance Through the Application of Lean Management Practices in Horticultural Primary Production
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Darian Pearce, Manoj Dora, Joshua Wesana, Xavier Gellynck

    This study investigates the determining factors that drive sustainable performance through the application of lean methods in the primary production segment of the horticultural supply chain for apples and pears. The determining factors, identified through a systematic review of the available literature, are thematically synthesized, conceptually framed and utilized for the development of a case study. The single case study approach is utilized to develop a detailed and nuanced understanding of the context, evaluating the practices of 4 cooperative primary producers operating within a forward integrated supply chain. The study posits that the combination of climatic and biophysical dynamism inherent in the primary producer environment, in combination with the inflexibility of seasonal batch production, imposes itself as a key barrier to the imposition of pull and flow in the chain, the fundamental tenets of a lean system. A case is outlined where cold infrastructure is employed to break the inflexibility of supply whilst a process of forward contracting establishes fruit orders up to 1-year in advance, beyond the forthcoming annual cultivation cycle, functionally transforming the system of cultivation from a “push” to a “pull” system of production. It is further highlighted that functional partitioning of the organizational-chain structure is necessary to isolate and mitigate the effects of contextual dynamism, whereby downstream chain structures purposed for agility and responsiveness serve as a protective buffer to lean focused grower operations. The findings reaffirm the positive relationship between the size of the grower operation, the capacitation of the workforce and the ability of the operation to attain superior performance outcomes. However, it is severally highlighted that horizontal cooperation between primary producers may help overcome the resource limitations of smaller growers. Data based decision controls are marked as being a centrally important sustainable performance determinant, both at the level of the grower, in terms of orchard management and harvest process control, as well as at the level of the cooperative serving the needs of crop programming and practice benchmarking processes. This exposition of determining factors driving lean sustainable performance in horticultural primary production represents a new contribution to the body of literature linking lean and sustainable organizational performance. The study should support further development of lean management research and operationalized lean methods within the fruit horticulture subsector as well as the broader agri-food context.

    更新日期:2018-08-17
  • “Understanding small-scale gold mining practices: an anthropological study on technological innovation in the Vale do Rio Peixoto (Mato Grosso, Brazil)”
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    Luciana Massaro, Marjo de Theije

    Artisanal and small-scale gold mining in the Amazonian countries has undergone important technological improvements in recent decades. Nevertheless, this type of mining is largely associated with the use of rudimentary, low-tech and often manual methods, with inefficient gold recovery. This article aims at investigating how innovations and improvements in the technology used in small-scale gold mines are connected to a broader perception of the miners about the integration of more modern and effective techniques. A technographical approach enabled the understanding of mining practices as embodied cultural knowledge and to fill the information gap between the study of materials and techniques with the study of people and communities. We discuss how the technology of small-scale gold mining in the region of Peixoto de Azevedo (Mato Grosso, Brazil) has changed since the early 1980s, giving particular attention to the recent introduction of two main innovations: the mechanized exploration drill and the cyanidation process. In this region, miners are successfully organized in cooperatives efforts to mutually reinforce the integration of innovative and effective techniques. Finally, we introduce the three notions of foresight (visão), agility (agilidade) and development (desenvolvimento) that emerged during fieldwork and conceptually frame the likeliness of acceptance and promulgation of innovations in this context. Sustainable mining may only succeed if a wider vision of the future of the sector (foresight) joins public policies that facilitate the practical process of innovation during each phase of its realization (agility) in order to achieve an advanced social status of the local community (development).

    更新日期:2018-08-17
  • Socioeconomic and Environmental Assessment of Informal Artisanal and Small-Scale Mining in Ghana
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-17
    K.J. Bansah, N.K. Dumakor-Dupey, B.A. Kansake, E. Assan, P. Bekui

    The socioeconomic and environmental impacts of informal artisanal and small-scale mining (ASM) in Ghana are assessed in this paper. The paper includes a case study of an informal ASM-affected community located in the Western Region of Ghana. A two-phase mixed-method approach consisting of literature reviews, questionnaires, interviews, and water quality assessments was employed. The informal ASM was found to be a significant source of livelihood for many rural people who have few employment alternatives. However, it was observed to promote truancy, child labor, teenage pregnancy, and environmental degradation. Water quality was significantly affected by turbidity, followed by manganese and iron, leading to a water quality index at least 500% higher than the upper limit for potability. The authors describe economic, political, social, regulatory, and technological factors as major drivers for the informal ASM. Formalization of the informal ASM in Ghana could minimize the socioeconomic impacts and ensure environmental performance.

    更新日期:2018-08-17
  • Application of Falcon centrifuge in the recycling of electrode materials from spent lithium ion batteries
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Yu Zhang, Yaqun He, Tao Zhang, Xiangnan Zhu, Yi Feng, Guangwen Zhang, Xuejie Bai

    Spent lithium-ion batteries contain metals, LiCoO2, graphite and other substances that can cause environmental pollution in the case of random disposal. Thus recycling of spent lithium-ion batteries is important. In this study, components in spent lithium-ion batteries are fully dissociated by crushing and screening in the first step. LiCoO2 and graphite particles are enriched in -0.25 mm products. Density and particle size of LiCoO2 particles are larger than those of graphite based on the analysis of physical property. Subsequently, the separation effect is obtained by adjusting the rotating speed and water counter pressure of Falcon centrifuge as well as particle size. Composition of sorted products and optimal sorting conditions are determined by calculation of roasting test and scanning electron microscope. Optimum conditions are as follows: water counter pressure at 0.025 MPa, rotation frequency at 50.00 Hz. Best grade and recovery efficiency of LiCoO2 are 84.87% and 83.14%, respectively. The result also indicates when the particle size ranges between 0.045 mm and 0.09 mm, the sorting performance reaches the best effect.

    更新日期:2018-08-17
  • Modified imperialist competitive algorithm for environmental constrained energy management of microgrids
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Abdorreza Rabiee, Mohammad Sadeghi, Jamshid Aghaei
    更新日期:2018-08-17
  • Compliance with household solid waste management in rural villages in developing countries
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Feng Wang, Zhihua Cheng, Ann Reisner, Ying Liu

    Environmental deterioration in rural areas, among which household waste pollution is representative, is harming the overall eco-socio development of developing countries. Drawing on field data from a survey of 100 villages (679 valid sample households) from five provinces across China in 2012, this paper uses Probit regression to examine the factors that influence rural residents' solid waste disposal behaviors. The results show that only 36% of the sampled villages offer garbage collection and disposal services, among which only 81% of rural residents dump garbage in designated dumping sites. Distance between a residence to garbage collection facilities and village layout are negatively significant with rural residents' household solid waste disposal behavior while local economic level and household educational level are positively significant with rural residents' solid waste disposal behaviors. The results suggest that the presence of any organized garbage disposal site strongly encourages proper disposal behavior, most commonly at levels of compliance in the 80% and above range. The clear implication is that structural factors are the most important for ensuring proper solid waste disposal and that multiple collection points should be encouraged in areas where the distance from a disposal site is over 2 kilometers. This paper provides practical implication for researchers and policy maker on solid waste management in developing countries.

    更新日期:2018-08-17
  • Synthesis of polymetallic nanoparticles from spent lithium-ion batteries and application in the removal of reactive blue 4 dye
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Mayra A. Nascimento, Jean C. Cruz, Guilherme D. Rodrigues, André F. de Oliveira, Renata P. Lopes
    更新日期:2018-08-17
  • Enhancement of copper recovery by acid leaching of high-mud copper oxides: A case study at Yangla Copper Mine, China
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Shenghua Yin, Leiming Wang, Aixiang Wu, Michael L. Free, Eugie Kabwe

    Poor permeability, high mud and impurities contents, severe curing conditions and ore complexity are primary challenges faced by Yangla Copper Mine (YCM) during acid leaching, resulting in a poor 1 % copper extraction after 3 months of traditional leaching. A series of technological improvements, which included of antiscalant addition, ore washing, classified crushing and screening, thin-layer conveying and dumping, and mechanical/chemical activation, were applied in YCM to enhance heap permeability and copper extraction from low-grade copper oxides. These improvements increased copper extraction to over 60 and the production of cathode copper reached 2500 t/a. Related topics such as: ore surface erosion, particle size distribution, heap structure, irrigation rate, and passivation and its effects are also discussed in this study. Even though some of the relevant mechanisms for enhanced recovery are still being studied, this successful industrial case provides a good reference for copper oxide mines encountering similar problems.

    更新日期:2018-08-17
  • Shaping the sharing city: An exploratory study on Seoul and Milan
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Monica Bernardi, Davide Diamantini

    An increasing number of cities are engaging with the sharing economy, exploring how it may be integrated into the urban agenda, fostering its positive aspects whilst avoiding its negative externalities. The paper focuses on two cities, Milan and Seoul, that are internationally considered to have a conscious and tailored approach that lies in the vanguard of this effort. The paper seeks to understand how local authorities govern the sharing economy in order to shape a real sharing city, taking insights from the sharing paradigm concept and looking to the collaborative version of the urban governance paradigm. The paper uses a mixed method approach to develop case studies of the governance models employed. The analysis shows that both cities work along the three dimensions (economic, technological and human) of the sharing paradigm to create a sharing city, with slightly different governance approaches, but both lack institutionalized mechanisms of collaboration. Nevertheless, both are pioneering examples of engagement with the sharing economy. The paper proposes a graphic conceptualization of the two governance models to better highlight their contribution to knowledge.

    更新日期:2018-08-17
  • An integrated permanganate and ozone process for the treatment of textile dyeing wastewater: efficiency and mechanism
    J. Clean. Prod. (IF 5.651) Pub Date : 2018-08-16
    Jieying Liang, Xun-an Ning, Jian Sun, Jian Song, Yanxiang Hong, Haili Cai
    更新日期:2018-08-17
  • 更新日期:2018-08-15
Some contents have been Reproduced with permission of the American Chemical Society.
Some contents have been Reproduced by permission of The Royal Society of Chemistry.
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