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  • Cleaning and upgrading of coal-series kaolin fines via decarbonization using triboelectric separation
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Jingfeng He, Yake Yao, Wang Lu, Guanghui Long, Qiang Bai, Haifeng Wang
    更新日期:2019-04-26
  • Scenario analysis of a sustainable water-food nexus optimization with consideration of population-economy regulation in Beijing-Tianjin-Hebei region
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    X.T. Zeng, J.Y. Zhao, D.Q. Wang, X.M. Kong, Y. Zhu, Z.P. Liu, W. Dai, G.H. Huang

    In the process of urban agglomeration, water-food security can be deemed as a key to support urban development and human living, but which can be challenged by expanded population growth, accelerated industrialization, unbalance regional economic development and diversity of weather (due to climate changes). In this study, a water resources allocation and food production (WF) optimization is developed for regional sustainability under multiple uncertainties. A hybrid two-stage fuzzy programming with Laplace criterion (TSFL) is proposed into a WF optimization to handle hybrid indeterminacies, which can increase the robustness of decision-making. The WF optimization with proposed TSFL method can be applied to a practical case of Beijing-Tianjin-Hebei (BTH) region. The obtained results associated with water deficits, optimal water allocations, inadequate capacities of food production, rational irrigation schedules, sound livestock scales, optimized agricultural possessing layouts and system benefits under various population-economy regulation scenarios can be obtained. The results can reflect the tradeoff between economic development and water-food safety; meanwhile, they can display risk violation of WF plan under various credibility levels and Laplace criterions (based on TSFL method). All above results can facilitate to produce an optimized water-food plan to support the synergetic development of BTH region in a robust manner.

    更新日期:2019-04-26
  • Energy consumption and CO2 emissions of joining processes for manufacturing hybrid structures
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Francesco Gagliardi, Domenico Palaia, Giuseppina Ambrogio
    更新日期:2019-04-26
  • Market segmentation, resource misallocation and environmental pollution
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Yuanchao Bian, Kaiyi Song, Junhong Bai
    更新日期:2019-04-26
  • Utilization of greenhouse gas carbon dioxide for cleaner Fischer-Tropsch diesel production
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Shashank Bahri, Anna Maria Venezia, Sreedevi Upadhyayula
    更新日期:2019-04-26
  • 更新日期:2019-04-26
  • Solid waste management: Scope and the challenge of sustainability
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Subhasish Das, S.-H. Lee, Pawan Kumar, Ki-Hyun Kim, Sang Soo Lee, Satya Sundar Bhattacharya

    Solid waste management (SWM) is an integral part of an environmental management system. SWM approaches are being modified to make SWM more practical and effective based on environmental regulations and to establish sustainability based on the “reduce”, “reuse”, and “recycle” (3R) principles. This review provides a wide-ranging overview of existing SWM strategies with the following key objectives: (i) to comprehensively describe current technologies, strategic innovations, and monitoring tools, (ii) to provide an overview of prevailing waste management scenarios across different countries, (iii) to identify the roles of life cycle assessment (LCA) and other modeling tools in SWM, and (iv) to showcase feasible approaches for sustainable recycling and utilization of solid wastes. The current review finds that geographical positions and economic status of nations largely are important to dictate waste characteristics. Several economic and LCA models have been described to facilitate future workers vis-à-vis organizations for the selection of appropriate waste management algorithms and the evaluation of their eventual performance. In addition, this paper showcases various innovative solutions that have been reported for the establishment of smart and sustainable waste management plans in many countries.

    更新日期:2019-04-26
  • Regional differences in nonlinear impacts of economic growth, export and FDI on air pollutants in China based on provincial panel data
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-26
    Shi-Chun Xu, Yi-Wen Li, Yong-Mei Miao, Chang Gao, Zheng-Xia He, Wen-Xing Shen, Ru-Yin Long, Hong Chen, Bin Zhao, Shu-Xiao Wang

    This study extends the STIRPAT model and uses China’s provincial panel data to investigate regional differences in nonlinear effects of economic growth, export and FDI on air pollutants (SO2, NOx, and PM2.5) in China, which reveals that the nonlinear effect of economic growth on air pollutants mainly presented an “inverse-U” or “inverse-N” shape in eastern China, an “inverse-U” or “increasing linear” shape in central China, and a “U” or “inverse-N” shape in western China; the economic growth can decrease air pollutants in eastern China, whereas increase air pollutants in other regions. The result is not significantly consistent with EKC hypotheses. The effect of export on air pollutant emissions presented an “inverse-U” or “increasing linear” shape in eastern China, an “increasing linear” or “inverse-N” shape in central China, and an “inverse-U” shape in western China; the export had a promoting effect on air pollutants, which indicates air pollutants transferred into China. The effect of FDI on air pollutants presented an “inverse-U” shape in eastern China, and a “decreasing linear” shape in western China; the effect of FDI for central China was a “decreasing linear” shape on SO2, an “inverse-N” shape on NOx, and an “inverse-U” shape on PM2.5. The FDI reduced air pollutants in all regions, which contradicts to the “pollution haven” hypothesis. On the whole, the industrialization level and population size increased air pollutants, whereas the R&D reduced pollutants; the effects of population urbanization on air pollutants differed among regions. Some policy implications are put forth related to these empirical results.

    更新日期:2019-04-26
  • 更新日期:2019-04-26
  • Nutrient rich biomass and effluent sludge wastes co-utilization for production of biochar fertilizer through different thermal treatments
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Adnan Asad Karim, Manish Kumar, Sanghamitra Mohapatra, Saroj Kumar Singh
    更新日期:2019-04-26
  • Determinants for integration of sustainability with innovation for Indian manufacturing enterprises: Empirical evidence in MSMEs
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Sonal Khurana, Abid Haleem, Bisma Mannan

    The global integration of markets, rapid changes in technology and reduced lifecycles for product and technology have made the Micro Small and Medium Enterprises (MSMEs) to focus on considering innovation as an essential aspect to attain benefit in sustainable competition. Thus, the present study contributes to the empirical literature by identifying and consolidating the determinants that strengthen the integration of sustainability with innovation for Indian manufacturing MSMEs as these organisations consist of a significant portion of the output of the economy from the manufacturing sector. To this end, a systematic review of the literature and the opinion of the experts were taken to extract the data. The questionnaire approach was carried out to validate the data statistically. The outcome of the present study, after analyzing the data by factor analysis and refining of the data, is a set of definite, accurate and one dimensional determinants that can be consequently applied in other circumstances or can be used to examine different theoretical models, driving in the direction of building of theory in Sustainable Oriented Innovation for Indian manufacturing MSMEs.

    更新日期:2019-04-26
  • Water and carbon footprint reduction potential of renewable energy in the United States: A policy analysis using system dynamics
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Carolina Kelly, Nuri Cihat Onat, Omer Tatari

    Renewable energy has gained popularity as an alternative to fossil fuels, which regularly emit large amounts of Greenhouse Gases and consume/withdraw large amounts of water, but renewable energy market penetration is still limited while fossil fuels are still the U.S.‘s dominant power source. This is due to resistance in the market, or in this case, the failure of renewable energy policies to achieve long-term environmental sustainability due to neglected external factors (economic, societal, etc.). No available literature analyzes potential sources and/or effects of this policy resistance, so this research investigates the underlying mechanisms in the renewable energy generation market by utilizing a system dynamics model. A two-alternative Generalized Bass Model was developed to simulate the renewable energy market (specifically with respect to solar PV and wind energy), including the environmental, societal, and economic concerns associated with each of the alternatives evaluated in this study, so as to identify and address possible causes of policy resistance and its subsequent effects on environmental impacts (esp. GHG emissions and water withdrawal rates). Based on this model, three separate policy areas (solar PV investments, wind power investments, and the elimination of fossil fuel subsidies) and various combinations thereof were proposed and tested within the context of the model. Based on the results of this study, it is highly recommended to invest as generously as possible into multiple renewable energy industries, reduce fossil fuel subsidies (in turn freeing up funding for renewable energy investments), and seek further advancement in renewable energy technologies (e.g. enhancing the useable lifetimes of wind turbines). A balanced policy have potential to increase the share of renewable's up to roughly 40% in the U.S. by 2050, as well as 17% and 32% GHG and water withdrawal reduction potential by 2050.

    更新日期:2019-04-26
  • Cleaner Production in the textile industry and its relationship to sustainable development goals
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Geraldo Cardoso de Oliveira Neto, José Manoel Ferreira Correia, Paulo Cesar Silva, Ariane Gaiola de Oliveira Sanches, Wagner Cezar Lucato

    Conceptually Cleaner Production seeks to integrate the continuous utilization of deterrent environmental approaches to processes, products and services aiming to rise efficiency and to minimize the risks to people and environment. Extant literature has shown that the implementation of Cleaner Production practices brings as a result economic and environmental gains. Nevertheless, very few studies link those savings to the Sustainable Development Goals, reason why this research aims to evaluate if the economic and environmental advantages coming from Cleaner Production adoption in the textile industry contributed to the Sustainable Development Goals. This was done through extensive review of the literature, complemented by the proposal of a theoretical framework confirmed through the development of two case studies. As a result, it was concluded that the adoption of Cleaner Production practices in Brazilian textile industries through technological innovation made it possible to highlight the economic and environmental gains relating those to Sustainable Development Goals 9, 12 and 15.

    更新日期:2019-04-26
  • Comparative LCA of recycled and natural aggregate concrete using Particle Packing Method and conventional method of design mix
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Subhasis Pradhan, B.R. Tiwari, Shailendra Kumar, Sudhirkumar V. Barai

    In construction industry, apart from cement, the aggregate type, mix design method and transport distance of raw materials also contribute significantly to the environment related issues. This paper compares environment impacts of recycled coarse aggregate (RCA) and Particle Packing Method (PPM) of mix design approach with the concrete proportioned using natural coarse aggregate (NCA) and IS code method. The system boundary is determined based on cradle-to-gate theory. The primary data regarding the preparation of NCA and RCA are collected from the respective production facilities and Ecoinvent 3.1 is used as background database. Abiotic depletion, abiotic depletion due to fossil fuels, global warming potential, depletion of ozone layer, formation of tropospheric ozone photochemical oxidants, acidification potential, and eutrophication potential are measured using CML baseline method with the help of SimaPro software. Lower environmental impacts are observed for PPM mix designed concrete owing to the requirement of lesser cement quantity. The combination of RCA and PPM mix design approach exhibits minimum environmental impacts. Transport activities are the second largest contributor after cement and hence, sensitivity analysis is carried out to evaluate the influence of different transport scenarios and distances in Indian context. For comparable environmental impact with natural aggregate concrete proportioned using IS code method, the maximum possible supply distance of RCA is determined for different collection distance of C&D waste. The collection distance of C&D waste can be incremented by 9–12 km for each 50 km increment in the supply distance of processed RCA to prepare recycled aggregate concrete.

    更新日期:2019-04-26
  • Hydrometallurgical separation of Co(II) from Ni(II) from model and real waste solutions
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Małgorzata Janiszewska, Agnieszka Markiewicz, Magdalena Regel-Rosocka
    更新日期:2019-04-26
  • The value of cool roof as a strategy to mitigate urban heat island effect: A contingent valuation approach
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Li Zhang, Hiroatsu Fukuda, Zhonghui Liu

    The urban heat island effect in Beijing is significant, which has become a serious environmental problem posed to Beijing citizens. As an important measure to alleviate the urban heat island effect, cool roof is recommended in relevant Evaluation Standard for Green Building of China. In order to elicit policy implications, this paper investigates Beijing residents' willingness to pay for promoting cold roofs to alleviate the urban heat island effect and its determinants. This research applied double-bounded discrete choice format and face to face interview to elicit public’s willingness to pay. 841 Beijing households were randomly selected and interviewed. For 242 (29%) respondents refuse to pay, the spike model was introduced to process the data for it has been proved to outperform the conventional model in dealing with zero responses. The average annual willingness to pay was computed as 1510.854 Chinese Yuan, which is 220.562 US dollars per household. In addition, In terms of the determinants of residents’ willingness to pay, other than conventional demographic characteristics, we added and estimated covariance with regard to environmental knowledge and the theory of planned behavior. The result indicated that social norm, perceived behavior control, and previous knowledge of urban heat island effect and cool roof are statistical significantly related with residents’ willingness to pay. This research suggests that timely information disclosure with regard to urban environment management and pro-environment education are urgently needed in promoting public participation in alleviating the urban heat island effect.

    更新日期:2019-04-26
  • A life-cycle assessment of battery electric and internal combustion engine vehicles: A case in Hebei Province, China
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Sainan Shi, Haoran Zhang, Wen Yang, Qianru Zhang, Xuejun Wang

    Vehicle electrification has been rapidly promoted to aid the conventional energy shortage and reduce environmental pressures for light-duty passenger vehicles (LDPVs). Battery electric vehicles (BEVs) are well positioned in the electric vehicle market. This article presents a cradle-to-grave assessment of energy consumption, CO2 emissions and emissions of VOC, CO, NOx, primary PM2.5 and PM10 for current (2015) and future (2020 and 2030) LDPVs in Hebei Province, China. The analysis addressed both the fuel life cycle and vehicle life cycle for conventional gasoline and battery electric LDPVs. A scenario analysis was carried out to evaluate the reduction potentials of different future policies. The results showed that the promotion of BEVs could effectively mitigate per-kilometer petroleum use by 98% and fossil fuel use by 25–50% relative to gasoline LDPVs. BEVs hold obvious advantages in CO2, VOCs, CO, NOx and PM2.5 emissions reduction, while the PM10 emissions of BEVs are higher than those of conventional internal combustion engine vehicles, mainly due to the high emission in the upstream industry process in electricity generation. The scenario analysis showed that the emissions of VOCs, CO, NOx, PM2.5 and PM10 will decrease by 56%, 70%, 27%, 24% and 17%, respectively, with the China Ⅵ oil standard coming into force in 2030 instead of 2020. The results stress that more stringent emission controls, higher BEV penetration, and cleaner electricity should be jointly applied to ensure a successful electrification future in China.

    更新日期:2019-04-26
  • Framework for Evaluating Risks in Food Supply Chain: Implications in Food Wastage Reduction
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Dr. Syed Mithun Ali, Md. Abdul Moktadir, Jewel Chakma, Dr. Golam Kabir, Jalal Uddin Rumi, Tawhidul Islam

    Over the years, food supply chains (FSCs) have faced various challenges, including supply chain interruptions. Previous studies focused only on household food waste. In this study, the FSCs risks is connected with food wastage to develop sustainable framework to reduce food waste. A Pareto analysis is developed for risk identification based on feedback from 130 experts from food companies. Finally, a blended grey-based Decision-Making Trial and Evaluation Laboratory (DEMATEL) model has been proposed to assess the relationships among the identified major risks in FSCs. The five risks of greatest priority include: lack of skilled personnel, poor leadership, failure within the IT system, capacity, and poor customer relationship. The risk mitigation strategies for these risks are also presented. The proposed model is applied to food processing companies in Bangladesh to establish a sustainable business policy to minimize food wastage. These results can guide managers and practitioners to formulate resilient strategies to mitigate the identified risks, thereby minimizing food wastage and lead to food safety, security and sustainability across the food supply chain. The proposed model can be extended to address sustainability risk and be integrated to the internet of things for planning, monitoring, controlling, and optimizing supply chains in real time.

    更新日期:2019-04-25
  • Demonstration projects in sustainable technology: The road to fulfillment of project goals
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Karolin Sjöö, Johan Frishammar

    Publicly funded demonstration projects represent a critical intermediate step between basic R&D on the one hand, and large-scale commercialization of new sustainable technology on the other. However, these projects often suffer from various technical and nontechnical difficulties, frequently fail to meet objectives, and sometimes stall despite the best intentions of their facilitators. This paper reports on a multiple case study of 21 demonstration projects in the area of sustainable technology set in Sweden and offers two contributions. First, it maps the project-internal and external factors that allow or prohibit demonstration projects to reach their goals. Second, it suggests a process model outlining the key activities for setting up a new demonstration project. By doing so, the paper provides important implications for the process of developing and commercializing sustainable technologies. The escalating environmental crisis in particular underscores the need for new knowledge about how cleaner and more sustainable technologies can be applied.

    更新日期:2019-04-25
  • The true cost of “greening” a building: Life cycle cost analysis of vertical greenery systems (VGS) in tropical climate
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Ziyou Huang, Yujie Lu, Wong Nyuk Hien, Poh Choon Hock

    Increasing number of building owners is adopting vertical greenery system (VGS) as an alternative to building facades or claddings due to its environmental, aesthetic and social benefits in recent years. While numerous studies have been conducted on its potential benefits and its environmental impacts, there has been little focus on its life-cycle cost (LCC) which is a crucial factor for building owners to adopt a VGS as well as to compare among various types of system. To fill this gap, this study aims to identify and calculate the LCC of 3 main types of VGS available in Singapore, where is the tropical climate, namely the carrier, planter and support systems. The cost incurred during each life-cycle stage including initialisation, installation, operation and demolition, are recorded based on 8 completed and ongoing cases selected in Singapore. The analysis of the results shows that the support system has the lowest life-cycle cost (S$885) followed by planter (S$3,786) and then the carrier system (S$4,919). During the life-cycle, the stage of Operations and Maintenance contributed the most to the LCC of a VGS (73.7–83.9%), while plants related parameters, e.g. plant replacement rate and price, affect the largest variances of LCC. for the support system, the LCC of VGS can be balanced off by building energy cost savings within 30 years, but not for other two systems. Suggestions on selecting VGS types, plants and supporting structures to reduce the cost of VGS have been discussed to conclude the study.

    更新日期:2019-04-25
  • Precise measurements and control of the position of the rolling shutter and rolling film in a solar greenhouse
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Guoxiang Zhang, Xingxing Liu, Zetian Fu, Stevan Stankovski, Yuhong Dong, Xinxing Li
    更新日期:2019-04-25
  • Biohydrogen production in pilot-scale fermenter: Effects of hydraulic retention time and substrate concentration
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Chaoyang Lu, Yi Wang, Duu-Jong Lee, Quanguo Zhang, Huan Zhang, Nadeem Tahir, Yanyan Jing, Hong Liu, Kai Zhang
    更新日期:2019-04-25
  • Renewable energy prediction: A novel short-term prediction model of photovoltaic output power
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Ling-Ling Li, Shi-Yu Wen, Ming-Lang Tseng, Cheng-Shan Wang

    Photovoltaic power generation is gradually developing into a massive power industry with the maturity of renewable energy power generation technologies. Photovoltaic power generation is greatly affected by external factors and the output power is characterized by randomness and indirectness, which poses a great challenge to photovoltaic grid-connection. A hybrid improved multi-verse optimizer algorithm (HIMVO) is proposed to optimize the support vector machine for photovoltaic output prediction. HIMVO algorithm introduces chaotic sequences to initialize the population, which significantly enhances the convergence rate of the algorithm compared with the multi-universe optimizer algorithm. This study applied particle swarm optimization algorithm, dragonfly algorithm, multi-universe optimizer algorithm and HIMVO to testify the availability of the hybrid improved multi-verse optimizer support vector machine model (HIMVO-SVM). The results indicate that HIMVO algorithm has better optimization ability and stability. The four models, HIMVO-SVM, multi-verse optimizer support vector machine, particle swarm optimization support vector machine, back propagation and radical basis function neural network are used to predict output in three different weather types. The results indicate that the model has higher prediction accuracy and stability. The mean square error value of the HIMVO-SVM model decreases by at least 0.0026, 0.0030 and 0.0012, and the mean absolute percentage error value decreases by at least 3.6768%, 1.9772% and 2.7165%, respectively. The proposed method is beneficial to the prediction of output power and conduces to the economic dispatch of the grid and the maintenance of the stability of the power system.

    更新日期:2019-04-25
  • Demand and supply-side carbon linkages of Turkish economy using hypothetical extraction method
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    M. Jawad Sajid, Li Xinchun, Qingren Cao
    更新日期:2019-04-25
  • 更新日期:2019-04-25
  • Development Of Renewable Energy Sources Market And Biofuels In The European Union
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Piotr Bórawski, Aneta Bełdycka-Bórawska, Elżbieta Jadwiga Szymańska, Krzysztof Józef Jankowski, Bogdan Dubis, James W. Dunn

    The aim of the paper is to present renewable energy market development with particular regard paid to biofuels in the EU. The analysis included data on the share of renewables in Gross Island energy consumption, changes of renewable energy in the years 2004-2016 and the amount of liquid biofuels. The authors of the paper used descriptive and statistical methods to describe the changes in bioenergy development in the European Union (EU). The biggest share of biofuels and renewable waste can be seen in Latvia (31.2%), Finland (26.7%) and Sweden (24.8%). The highest percentage of wind energy in 2015 was found in: Denmark (7.2%), Portugal (4.3%), Ireland (4.0%) and Spain (3.5%). The highest share of solar energy in 2015 was found in Cyprus (3.5%), Spain (2.6%) and Greece (2.2%). The highest contribution of geothermal energy was found in 2015 in Italy (3.5%), Portugal (0.8%) and Slovenia (0,7%). Hydropower was the biggest in 2015 in Sweden (14.2%), Austria (9.6%) and Slovenia (5.0%). The highest coefficients of variation of the share of electricity from renewable energy sources were found in the years 2004-2017 in Malta (140.3%), Cyprus (101.1%) and United Kingdom (71.9%). In addition, the highest coefficients of variation of share of renewable energy sources in heating and cooling in the years 2004-2017 were found in Malta (72.4%), United Kingdom (69.81%) and Hungary (44.91%). Moreover, the highest coefficients of variation of share of renewable energy sources in transport in the years 2004-2017 were found in Finland (113.78%), Malta (115.52%) and Belgium (96.53%).The biggest producers of ethanol and biodiesel in EU were Germany, France and Poland. Cluster analysis data show that Germany and France are of key importance in the production of biodiesel and ethanol. The biodiesel production increased in the years 2003-2017 from 719,32 million liters to 13323 million liters (increase 1852.2%). However, in the years 2014-2017 a stagnation in biofuel production was observed from 13673 million liters to 13323 million liters (-2,56%). The situation on the market and the increasing demand for green energy suggest that the production of ethanol and esters of vegetable oils will increase by 2030, which will contribute to the development of this sector.

    更新日期:2019-04-25
  • A BIM-Based construction and demolition waste information management system for greenhouse gas quantification and reduction
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Jiuping Xu, Yi Shi, Yachen Xie, Siwei Zhao

    Excessive greenhouse gas (GHG) emissions have caused serious global warming and climate change. As the construction and demolition waste (CDW) end of life disposal process is a source of GHG emissions, it is vital to precisely estimate and reduce CDW end of life GHG emissions. The precise estimation of CDW information is essential for GHG estimation and reduction. However, as current CDW information and associated GHG estimation methods tend to be inaccurate, in this paper, a building information modeling (BIM)-based CDW information management system (IMS) is constructed that provides precise CDW information and a detailed information estimation process. To facilitate the accurate quantification of CDW disposal GHG emissions, mathematical formulae that include several GHG emission factors are proposed. A practical case study from China is then given to demonstrate the efficiency and effectiveness of the proposed methodology in quantifying and reducing CDW disposal GHG emissions. Accurate GHG emission estimation are determined for fifteen CDW disposal types and a comparison are conducted. Concrete was found to have the highest carbon dioxide, methane, and nitrous oxide emissions during transportation and the highest carbon dioxide emissions during handling, and organics were found to have the highest decomposition methane emissions. Targeted suggestions are given for source-separated CDW disposal GHG emission reduction based on the different emission characteristics. The combination of the BIM-based CDW IMS and the developed mathematical formulae were found to efficiently and accurately determine the CDW information and the associated GHG emissions, and therefore provide a practical guide to reducing the serious environmental damage generated by CDW disposal.

    更新日期:2019-04-25
  • Informing energy justice based decision-making framework for waste-to-energy technologies selection in sustainable waste management: A case of Iran
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Abdolvahhab Fetanat, Hossein Mofid, Mojtaba Mehrannia, Gholamreza Shafipour
    更新日期:2019-04-25
  • Carbon quantum dot supported semiconductor photocatalysts for efficient degradation of organic pollutants in water: A review
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Sheetal Sharma, Vishal Dutta, Pardeep Singh, Pankaj Raizada, Abolfazl Rahmani-Sani, Ahmad Hosseini-Bandegharaei, Vijay Kumar Thakur
    更新日期:2019-04-25
  • Is the commercial sector of Bangladesh sustainable? – Viewing via an exergetic approach
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Tamal Chowdhury, Hemal Chowdhury, M. Thirugnanasambandam, Shahariar Hossain, Pranta Barua, Jamal Uddin Ahamed, R. Saidur, Sadiq M. Sait

    The current study's main objective is to apply energy, exergy, & sustainability analysis and provide suggestions to improve the sustainability of the commercial sector of Bangladesh. Data from 2000 to 2014 is analyzed, and it is found that the estimated energy efficiencies range from 65.42% to 68.5%, while exergy efficiencies range from 10.79% to 11.49%. Depletion number, sustainability index, lack of productivity, relative irreversibility, waste exergy ratio, environmental effect factor, & environmental destruction coefficient are utilized as sustainability indicators. From the study, it is found that sustainability index varies between 1.12 and 1.13, while relative irreversibility varies between 0.44 and 0.53. Lack of productivity is found to be higher for cooking appliances and varies from 3.52 to 4.06. Waste exergy ratio and environmental effect factor are found to be higher for electrical appliances. For electrical appliances, waste exergy ratio varies from 0.42 to 0.50 and environmental effect factor varies from 3.5 to 4.55. Environmental destruction coefficient reaches as high as 9.27. It is determined that Bangladesh's commercial sector is more sustainable compared to Turkey, Japan, Saudi Arabia, and Malaysia but less sustainable than Norway, and Sweden. Utilization of energy efficient lighting, waste energy management, and replacing gas-fired cooking stoves with electrical appliances are provided as recommendations to reduce exergy loss. The study outcome reveals that increasing exergy efficiencies can ensure a sustainable commercial sector.

    更新日期:2019-04-25
  • The selection of 3PRLs on self-service mobile recycling machine: Interval-valued pythagorean hesitant fuzzy best-worst multi-criteria group decision-making
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Aijun Liu, Xiaohui Ji, Hui Lu, Haiyang Liu

    As the speed of mobile phone updates continues to accelerate, the self-service mobile phone recycling mode, led by third-party reverse logistics providers (3PRLs), has ushered in an important developmental era. This paper proposes a novel interval-valued Pythagorean hesitant fuzzy best-worst multi-criteria large group decision-making method to research the selection of 3PRLs. To minimize the influence of subjective factors and maximize the mathematical analysis method, some related improvements have been made to the traditional best worst method (BWM). First, in order to make an effective strategic assessment and achieve overall optimization of the organization, evaluators are grouped by the self-organized maps (SOM) method to balance the coordination ability and professional level of different groups. Next, the interval Pythagoras hesitant fuzzy set (IPHFS) is used to evaluate the criteria of 3PRLs selection. Then, according to above evaluation results, the BWM method and deviation model are combined to determine the weights of criteria. Finally, the traditional BWM is extended by ranking functions to determine the optimal 3PRL. The applicability of the proposed method is numerically demonstrated by solving a real case, and the key conclusions are that the technical factor is important to affecting the choice of 3PRLs. At the same time, the quantity and price of recycled components on End of Life (EOL) and used mobile phones also have important impacts on the selection of 3PRLs.

    更新日期:2019-04-25
  • Sustainable Development Goals in Mining
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Nathalie Barbosa Reis Monteiro, Elaine Aparecida da Silva, José Machado Moita Neto

    In 2015, the United Nation (UN) launched 17 Sustainable Development Goals (SDG) as part of an Agenda to be achieved by 2030. The target is having a global plan of action, aiming at universal peace and social and environmental justice. For this, 169 goals were drawn. The objective of this research is to discuss the congruence between mining activity and the SDG, starting from experiences of the scientific literature and the observation of one mining activity. For this purpose, the Web of Science and Scopus databases were used, with the keywords "sustainable development goals" and "mining". The Coordination of Improvement of Higher Education Personnel (CAPES) Portal was used to search papers that relate each one of the SDG to mining. Visits were made to three crushed stone mining industries, located in Monsenhor Gil, Piauí, Brazil, in order to follow the production process of the diabase mineral. From the research in the literature, it was possible to verify that there are several possibilities of reaching the 17 SDG in the mining sector, such as in the promotion of jobs (SDG 8), contributing to the reduction of poverty (SDG 1) and hunger (SDG 2), among others. From the visits, it was observed that the compliance with SDG related to the promotion of jobs, the improvement of income for community’s residents, and the infrastructure of the environment are common to all mining or business activities that reach remote and poor areas. This is clear when identifying mining regions that have lost their economic importance once the local development ceases. If the visited industries left the place, it would cause great loss to the residents that depend on them for their jobs. There is a small number of women on the staff, setting up disrespect for SDG 5 regarding the achievement of gender equality. The nature of the activity itself does not justify the asymmetry that possibly happened under the influence of a sexist culture that imposes what is a man’s job or a woman’s job. Another point is the lack of investment in inclusive education for employees and for residents of the region. In addition, these industries do not recover the degraded areas, compromising the achievement of SDG 13, in regard to combat climate change and its impacts.

    更新日期:2019-04-25
  • The heterogeneity of China’s pathways to economic growth, energy conservation and climate mitigation
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-25
    Chao Feng, Miao Wang

    For many years, China has invested effort into achieving resource conservation and environmentally friendly economic development. The measures implemented include promoting technological innovation, market-oriented reform and industrial structure adjustment. But there are open questions: What have the effects of these measures been? Have they helped China achieve win-win development in terms of its resources, environment, and economy? This paper aims to answer these questions by using a newly proposed global three-hierarchy meta-frontier Luenberger index that can quantify the effects of promoting technological innovation, industrial restructuring, etc., on economic growth, energy conservation and emissions reduction. The results show that (1) during 2001-2016, China’s energy efficiency, economic efficiency, and emissions efficiency improved, indicating that China’s efforts have brought about the win-win development of resources, the environment, and the economy; (2) the implemented measures have heterogeneous effects on economic growth, energy conservation, and emissions reduction. The implemented measures are generally beneficial to energy conservation and emissions reduction but potentially harmful to the economy; (3) the effects of these measures on economic growth, energy conservation and emissions reduction across China’s regions and provinces are also quite different, indicating that local provincial governments should have a clear understanding of their own characteristics before implementing the relevant policies and measures.

    更新日期:2019-04-25
  • An analysis of food waste from a flight catering business for sustainable food waste management: A case study of Halal food production process
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Metawe Thamagasorn, Chanathip Pharino

    The airline business is a capital-intensive industry that consumes a large amount of resources in order to provide its services. The provision of food for airline passengers demonstrates an unsustainable consumption and production pattern and food waste from flight catering poses a significant sustainability issue, not only because valuable caloric content is lost, but also the loss of land, water and energy required in the production of food. A conduct of literature review of food waste management in airline catering business revealed a lack of research in this area. Through a case study of Halal food production process, the research aims to identify the amount of food waste generated from Halal kitchen flight catering production process in order to identify food waste hotspots by conducting a food waste composition analysis, Material Flow Analysis and eco-efficiency analysis. It also endeavors to provide insights that can help organizations better understand the food waste generation and composition imperative to the establishment of food waste management policies and make informed decisions to ensure that the future growth is more sustainable. One of the goals of this research is to develop a recommendation for sustainable food waste management by promoting the most preferred approaches of sustainable food waste management, which can prevent and reduce food wastage at source instead of the least preferred approach, which is recovering energy before landfill disposal.This research found that vegetable wastes accounted for 40-50 percent of the total food generated in the operation. From the quantitative analyses, it is recommended that the company prioritize its efforts in reducing seafood waste due to relatively high impact the reduction in seafood wastes will have in terms of cost-savings potential. This can be achieved by designing menus and recipes that aim to utilize seafood efficiently in combination with starting a dialogue with airline customers on the benefits of food waste reduction. The material flow diagram clearly illustrates the hotspots in the halal production process. Although the meal portioning process did not generate the highest amount of food waste, but in terms of edibility, this process generated the highest amount of wasted food (edible parts). Measures should be established in order to address the inefficiencies in the resource use. The company can reduce vegetables waste by selecting high quality suppliers, improve the effectiveness of selection and quality control process by providing additional training, changing the washing process and investing in new technology that facilitate staff in their jobs.

    更新日期:2019-04-25
  • Recycling of spent lithium-ion batteries in view of lithium recovery: A critical review
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Chunwei Liu, Jiao Lin, Hongbin Cao, Yi Zhang, Zhi Sun
    更新日期:2019-04-25
  • Does smart city policy improve energy efficiency? Evidence from a quasi-natural experiment in China
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Yantuan Yu, Ning Zhang

    This paper investigates the effect of the implementation of smart city policy (SCP) on energy efficiency (EE) in China. For this purpose, we have developed a non-convex metafrontier data envelopment analysis (DEA) approach to measure EE, and empirically examine the impacts of SCP on China’s EE using Difference-in-Differences (DID) analysis, using a dataset of 251 cities between 2003 and 2016. Results show that there exists significant regional heterogeneity across cities, with the SCP exerting a significant positive effect on EE, indicating that the SCP can effectively improve EE during the study period. These findings are robust to different sub-sample, energy efficiency alternative measures, estimation strategies, and Baidu Search Index. Based on empirical results, the implications of SCP are outlined.

    更新日期:2019-04-25
  • Production of a gasoline blending component with high-octane and low sulfur from coal tar light oil over sulfided CoMoP/η-Al2O3
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Haolie Li, Weiwei Shan, Shuguang Shen, Yunpeng Ren, Dongfeng Zhang, Ruijun Sun, Zijian Zhou, Xueping Ma

    Coal tar light oil (CTLO), an unclean byproduct of coal chemical industry, is a potential material for the manufacture of high-octane gasoline blending component. CoMo/η-Al2O3, a catalyst with lower desulfurization performance but less octane loss, is selected from four catalysts to further reduce sulfur content of CTLO by phosphorus modification. Catalysts modified by various content of phosphorus are characterized by a series of methods. The results show that addition of appropriate amount of phosphorus can improve the structure and acidity of catalysts, and weaken the interaction between active component and carrier. Furthermore, most of naphthalene in CTLO is converted into tetralin with 1.5 wt% phosphorus loading, and tetralin can play an important role of hydrogen transfer during catalytic hydrogenation process, which promotes the removal of heteroatom compounds. When the loading of phosphorus is 1.5 wt%, the content of S-, N- heteroatom compounds is only 7.2 mg/kg, 0.021% in product oil respectively, which is beneficial to reduce automobile emissions. Meanwhile, the RON reaches 105.3, and only decreases by 2.2 units compared to the original CTLO. Product oil catalyzed by CoMoP1.5/η-Al2O3 can be used as excellent high-octane gasoline blending component with low sulfur.

    更新日期:2019-04-25
  • An integrated process of chemical precipitation and sulphate reduction for treatment of flue gas desulphurization wastewater from coal-fired power plant
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Jia Yan, Wenhuan Yuan, Jian Liu, Weizhuo Ye, Jinlan Lin, Jiahao Xie, Xuan Huang, Shanshan Gao, Jiehui Xie, Shinian Liu, Wenzhong Chen, Hongguo Zhang
    更新日期:2019-04-25
  • 更新日期:2019-04-25
  • 更新日期:2019-04-25
  • Investigation on high-viscosity asphalt binder for permeable asphalt concrete with waste materials
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Jun Cai, Chen Song, Bochao Zhou, Yefei Tian, Rui Li, Jiupeng Zhang, Jianzhong Pei
    更新日期:2019-04-25
  • Cost-benefit analysis of a circular economy project: A study on a recycling system for end-of-life tyres
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Silvia Gigli, Daniele Landi, Michele Germani

    End-of-life vehicles (ELV) represent a relevant waste source in Europe, even if ELV recycling is a priority of the European Union waste legislation and Environment Action Programmes (EAPs). End-of-Life Tires (ELTs) constitute a relevant portion of ELV waste. Textile fibre, which is a relevant portion of the ELT material, is considered as a special waste (European Waste Catalogue – EWC code 19.12.08). The main problem related to textile fibre is its contamination with rubber which does not allow to obtain a pure product economically and qualitatively useable.The aim of this paper is to illustrate an innovative technology for ELT fibre's recycling, which allows to transform textile fibre into a useful secondary raw material for different applications.In particular, the use of ELT fibre as additive for bituminous conglomerates has been investigated. The different processes have been analysed from an environmental point of view, applying the Life Cycle Assessment methodology. It came up there is an impact reduction in case the ELT fibre is reused as additive for bituminous conglomerates, instead of disposing it (through incineration).Moreover, the financial and economic sustainability of the related technological process has been evaluated to check whether the process is sustainable in the long term. Starting from the results of the Life Cycle Assessment, economic performance indicators have been calculated, by applying the European Commission methodology for cost-benefit analysis. According to the present cost-benefit analysis, in the medium and long term the system is financially viable, and the high economic profitability makes the process economically sustainable. Furthermore, a sensitivity analysis as well as a risk assessment have been carried out in order to identify critical variables, evaluate risks and define risk mitigation measures. According to the sensitivity analysis performed, the project is not highly risky since even in the worst scenario the possible loss is moderate.Based on the results of this analysis, it can be concluded that this ELT fibre's recycling system can be replicated across Europe, conveniently fostered by national policies (such as subsidies, value added tax etc.).

    更新日期:2019-04-25
  • Air Pollution Concentration near Sensitive Urban Locations: A Missing Factor to Consider in the Grade Separation Projects
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Amin Alvanchi, Mostafa Rahimi, Hamed Alikhani

    The high vehicle congestion is the main contributing factor to air pollution originated from the engine’s combustion in many urban areas. Grade separation projects have been used to solve this problem and have resulted in overall air pollution reduction in many cases. Many grade separation projects are constructed near sensitive urban locations accommodating susceptible individuals. This research argues that in such cases in addition to the overall air pollution reduction, air pollution concentration near sensitive locations is an influential factor for deciding the appropriate scenario. This research proposes a complementary simulation-based method for assessing the resulting pollution concentration of the new grade separation projects near sensitive locations. In this method, traffic congestion and air pollution of the different available project scenarios were simulated and compared. The recommended scenario was selected as a trade-off between the resulting traffic congestion, the amount of air pollution, and air pollution concentration near sensitive locations. The proposed method was applied to an actual grade separation project in Dezful, Iran using VISSIM and EnViVer traffic and air pollution simulation software packages. It was shown that air pollution concentration near sensitive locations could be reduced by up to 40% with no significant change to the overall air pollution and the average vehicle speed. The achieved results in the case study uphold the pollution concentration near sensitive locations as a possible influential factor in the grade separation projects. The proposed method targets a new aspect of the grade separation projects assessment. As a result of the proposed method implementation, unintentional adverse impacts of air pollution can be avoided on the susceptible groups of citizens. The similar method proposed for the grade separation projects in this project can be adapted for other types of urban transportation projects.

    更新日期:2019-04-25
  • Sustainable management of water potabilization sludge by means of geopolymers production
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Claudio Ferone, Ilaria Capasso, Antonio Bonati, Giuseppina Roviello, Fabio Montagnaro, Luciano Santoro, Rosa Turco, Raffaele Cioffi

    Alumina-containing water potabilization sludge (WPS) is one of the main wastes produced by reservoir management activities. This kind of residues, deriving from treatment processes for water potabilization, recently attracted great attention as starting raw material in the production of innovative building materials. In this study, the use of WPS as aluminosilicate source for the synthesis of geopolymers has been investigated. In particular, two different potabilization sludge deriving from the water treatment plants of two artificial water reservoirs have been selected. For both of the WPS, mineralogical (XRD analysis), physical-chemical (FTIR analysis), thermal (TGA-DSC analysis), porosimetric (BET analysis) and morphological (SEM analysis) properties have been evaluated. A thermal treatment at 650°C has been performed on the two raw sludge in order to increase their reactivity. Geopolymeric samples have been produced by the hardening of the calcined WPS in two sodium silicate solutions, differing only by concentration, and using two curing temperatures. Obtained specimens have been widely characterized from chemical, mechanical and microstructural points of view. SEM, FTIR and XRD analyses confirmed that the geopolymeric reaction effectively took place for the samples produced by using the more concentrated solution and the higher curing temperature. In general, the mechanical performances reached by the specimens, suggest the possibility of a promising reuse of WPS as raw materials for the synthesis of geopolymer based building precast components.

    更新日期:2019-04-25
  • Linking physical water consumption with virtual water consumption: Methodology, application and implications
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Xinxin Zhang, Junguo Liu, Xu Zhao, Hong Yang, Xiangzheng Deng, Xiaohui Jiang, Yiping Li

    Physical water consumption (PW) in economic sectors are linked with virtual water consumption (VW) embodied in the supply chain of commodities. It is important to quantitatively assess PW and VW in economic sectors and understand interconnections between them for supporting water resources management. Here, we applied an IO framework to analyse how the PW is linked to the VW from both production and consumption perspectives. A water scarce region consisting of Ganzhou, Linze, and Gaotai counties (GLG) in the Heihe river basin in China is used as a case study. The agricultural sector is broken down into seven sub-sectors represented by individual major crops. From production perspective, the results show that the agricultural sector accounted for 98.1% of total PW, which can be divided into 79.0% of final demand driven water consumption and 21% of intermediate demand driven water consumption. From consumption perspective, the VW of all the sub-sectors in the agricultural sector was largely attributed to the direct VW. The sector “Food and tobacco processing” (the downstream of the agricultural sector) has the largest indirect VW among all the sectors. Most PW in GLG was used to produce the low value added primary agricultural products to fulfil the final demand (VW) outside GLG. The results suggest that the water resources management in arid regions should guide the restructuring of economy from increasing agricultural production to increasing the economic value of the embodied virtual water, and reducing the export of the virtual water from the low economic value products.

    更新日期:2019-04-25
  • Dynamic linkages between globalization, financial development and carbon emissions: Evidence from Asia Pacific Economic Cooperation countries
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Syed Anees Haider Zaidi, Muhammad Wasif Zafar, Muhammad Shahbaz, Fujun Hou
    更新日期:2019-04-25
  • A rough-fuzzy DEMATEL-ANP method for evaluating sustainable value requirement of product service system
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Zhihua Chen, Xinguo Ming, Xianyu Zhang, Dao Yin, Zhaohui Sun, Zhihua Chen, Xinguo Ming, Xianyu Zhang, Dao Yin, Zhaohui Sun
    更新日期:2019-04-24
  • 更新日期:2019-04-24
  • Green hub-and-spoke network design for aviation industry
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Mostafa Parsa, Ali Shahandeh Nookabadi, Simme Douwe Flapper, Zümbül Atan

    In response to the rapid growth of environmental problems related to air transportation including emissions and noise, aviation authorities and industries have implemented stricter environmental regulations and targets in the early 2000s to encourage airlines to become greener. Different emission mitigation measures to achieve these targets have been developed. This study introduces a new mitigation measure. In addition to minimizing total cost of flow and establishing hubs, the measure aims at minimizing the greenhouse gas emissions, fuel consumption and noise in the design of airline hub-and-spoke network. We develop a multi-objective mixed integer-programming model and use several methodologies to determine the best design.Our computational results are based on the CAB data set for the domestic US aviation sector. For assessing the value of the new mitigation measure, we develop cumulative marginal abatement cost curves for reducing the projected annual CO2 emissions from 2020 to 2050 for the domestic US air transportation. Our results indicate that using the new measure can cost-effectively decrease the projected cumulative (2020–2050) CO2 emissions by more than 250 and 200 million tonnes relative to the classical model, which relies on minimizing the total cost of flow and opening hubs only. We conclude that the new measure not only provides a practical solution for the airlines facing high fuel cost, emission trading schemes or carbon tax systems but it can also play an important role in achieving sustainable and environmental-friendly targets.

    更新日期:2019-04-24
  • Exploring the microfoundations of end-user interests toward co-creating renewable energy technology innovations
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Kirsi Kotilainen, Ulla A. Saari, Saku J. Mäkinen, Christian M. Ringle

    Energy market transition, which is enabled by new affordable energy technologies and digitalization, opens novel opportunities for developing innovative energy solutions. These new technologies facilitate energy consumers to become local energy prosumers i.e. consumers and producers of energy using renewable energy sources. Hence, a central question for innovating new solutions emerges: how energy consumers and prosumers would engage in co-creating value and novel solutions with industry players? This article explores the microfoundations of energy consumers’ and prosumers’ interest to participate in co-creation activities with energy industry actors. Using survey data from five European countries and by applying variance-based structural equation modeling, we find that rewards and personal characteristics influence the interest to engage in co-creation activities. Specifically, the microfoundations of the interest are built upon the need for improvements, the intrinsic rewards, and the personal adopter characteristics. Additionally, we find differing microfoundations of interest for energy consumers and prosumers. We further discuss managerial and theoretical implications of our findings and highlight avenues for future research.

    更新日期:2019-04-24
  • 更新日期:2019-04-24
  • Study on sustainable development of power transmission system under ice disaster based on a new security early warning model
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Weijun Wang, Weisong Peng, Lin Tong, Xichong Tan

    As the ecological climate deteriorates, common disasters including typhoons, earthquakes and ice disasters occur frequently in southern China. In particular, ice disasters can make severe ice coating on power line, resulting in power outage accidents. Not only do power supply disruptions cause major economic losses, but also they threaten people's lives in extremely cold conditions. Therefore, studying on the security early warning of ice coating damage to power line is significant and urgent. This paper adopts grey correlation analysis (GRA) to obtain 16 influence factors, of which the correlation degrees are over 0.74. In order to reduce the internal relevance among the impact factors, 5 common factors are extracted as the predictive model input values through factor analysis. With the input weight and hidden layer threshold optimized, a new extreme learning machine based on the adaptive whale optimization algorithm improved by chaotic sine cosine operator (CSCWOA-ELM) is established to forecast the ice coating damage to power line in southern China. To verify the accuracy and advancement of the proposed model, real data from the power repair projects under ice disaster are selected for experiments. The simulation results prove that the extraction of common factors can highly improve the prediction accuracy by approximately 27.80%. Compared with the 3 benchmark models, the CSCWOA-ELM model, of which the root mean square error (RMSE) is 0.02341 and the mean absolute percentage error (MAPE) is 1.82175%, shows a better performance in predicting the ice coating damage to power line.

    更新日期:2019-04-24
  • Effects of alkali-treated recycled carbon fiber on the strength and free drying shrinkage of cementitious mortar
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Yan Wang, Shaohui Zhang, Guoxin Li, Xianming Shi

    The waste management of carbon fiber−polymer composites has serious environmental implications if the wastes are sent to landfill or incineration. This laboratory investigation explored the viable chemical treatment for recycled carbon fiber (RCF) that contained residual cured epoxy on its surface, and evaluated the effects of alkali-treated RCF on the mechanical property and volume stability of cementitious mortar. A total of seven mortar mixtures were designed incorporating untreated RCF and RCF treated by 1, 2 and 3 mol/L NaOH solution, respectively. The dosage of RCF was 1% volume and the water-to-binder ratio was 0.50. The compressive strength, splitting tensile strength and free drying shrinkage of RCF reinforced mortar were evaluated. The mechanical and shrinkage behaviors of cement mortars were enhanced by RCF (untreated or treated by 1 mol/L NaOH). The scanning electron microscopy revealed that the treated RCF had better adhesion to the mortar matrix than the untreated one. The incorporation of RCF treated by 1 mol/L NaOH is a viable solution to reuse this waste in mortar. The RCF treated by high concentration NaOH solution had a negative effect on behaviors of mortar because of more damaged RCF and more Ca(OH)2 in the mortar (if mixed with NaOH solution).

    更新日期:2019-04-24
  • Relative effectiveness of substrate-inoculum ratio and initial pH on hydrogen production from palm oil mill effluent: Kinetics and statistical optimization
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Puranjan Mishra, Fuad Ameen, Rubaiyi M. Zaid, Lakhveer Singh, Zularisam Ab Wahid, M.Amirul Islam, Arun Gupta, Saleh Al Nadhari

    The present study has enabled to establish an appropriate kinetic and operational condition for hydrogen production using ultrasonicated palm oil mill effluent (POME). The kinetic analysis was performed corresponds to cumulative hydrogen (H2) production by varying substrate-inoculum ratio (COD/VS) from 0.2 to 0.6. The maximum H2 production potential (P) of 448 mL H2 with lag-time (ρ) of 8.2 h and H2 production rate (Rm) of 14.62 ml H2 h-1 was achieved using the substrate-inoculum ratio of 0.6. However, the Rm of 17.979 ml H2 h-1 with the ρ of 16.84 h, which is almost double than the substrate-inoculum ratio of 0.6 was observed at a substrate-inoculum ratio of 0.4. Furthermore, response surface methodology (RSM), including experimental design, regression analysis, was successfully applied to achieved optimum substrate-inoculum ratio and initial pH for biological H2 production from ultrasonicated POME. The maximum yield of 0.416 L H2/ g-CODremoval was observed at the optimum conditions of substrate-inoculum ratio of 0.5 and an initial pH of 5.0. The linear, quadratic and interactive effect of substrate-inoculum ratio and initial pH on H2 yield were significant.

    更新日期:2019-04-24
  • Aquaponic trends and challenges – A review
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Brandon Yep, Youbin Zheng

    This article reviews current literature published on aquaponics, a growing technology which uses aquaculture effluent to grow plants. Aquaponics offers a solution to several sustainability issues, such as, limited water availability, environmental pollution, increasing fertilizer cost, and depletion of fertile soils. The commercial and scientific application of aquaponics is growing; however, there is yet to be a review which holistically analyses scientific literature to indicate what type of system performs optimally, what will be the most dominant horticultural challenges as the commercial sector expands, and what direction of aquaponic research will be most impacting. This review analyzed over 529 publications on aquaponics, from 1978 to 2018. Through a systematic process, 257 of the most constructive publications were further analyzed and organized into varying groups based on content. The review found that in the past three 3 years, over 160 scientific articles have been published on aquaponic technology, detailing numerous trends, technological advancements and challenges associated with the system, consolidating the expansion of aquaponics and the need for a review. From publications investigating trends, it was found that decoupled aquaponic systems are becoming increasingly popular over coupled aquaponic systems, a deep water culture hydroponic component and media bed component are optimal for commercial and research applications, respectively; Tilapia and dark leafy vegetables are the most successful species used and Nitrospira may play a more important role in the aquaponic nitrification process than expected. From publications investigating challenges, it was found that commercial aquaponics will face difficulty growing high value flowering crops such as sweet peppers, tomatoes or cucumber, as a result of suboptimal nutrient ratios in aquaponic solution, specifically the reduced K+, Mg+, and Ca+. Holistically, it was found that the most important aspect of aquaponics that needs future research is the role plant promoting microbes play in nutrient uptake. Considering plant growth promoting microbes are likely the cause of aquaponic plants being able to achieve yields similar to that of hydroponics, despite nutrient levels being significantly lower, future research in this field can be paramount to the beneficial use of microbes in all plant production systems.

    更新日期:2019-04-24
  • Inequality and the environmental Kuznets curve
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Sulhi Ridzuan

    Is income inequality harmful to the environment? The answer to this question has not reached a consensus in the literature. This study seeks to provide insight into this question by examining the influence of income inequality on the environmental Kuznets curve (EKC), i.e., the impact of income inequality on the EKC turning point. Two potential mechanisms through which inequality may affect the EKC turning point: by reducing public demand for environmental protection and by increasing a power of capital owners to prevent such protection. Using a large sample (N = 170–174) of countries, we find evidence of the EKC for SO2 emissions and income inequality has a significant impact on the EKC turning point. Income inequality increases the EKC turning point, suggesting that high inequality can be damaging to the environment. The results are robust to potential outliers, different data sources of income inequality, a different SO2 emissions measure, changes in model specification, different samples and an alternative estimation method. We also find that inequality appears to be more important than corruption in determining the EKC turning point.

    更新日期:2019-04-24
  • Surfactant-Assistant Atmospheric Acid Leaching of Laterite Ore for the Improvement of Leaching Efficiency of Nickel and Cobalt
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Peiyu Zhang, Linquan Sun, Hairui Wang, Jiwei Cui, Jingcheng Hao
    更新日期:2019-04-24
  • Cost-effective reactive dyeing using spent cooking oil for minimal discharge of dyes and salts
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Linyun Liu, Bingnan Mu, Wei Li, Yiqi Yang
    更新日期:2019-04-24
  • 更新日期:2019-04-24
  • A coordinated strategy for sustainable supply chain management with product sustainability, environmental effect and social reputation
    J. Clean. Prod. (IF 5.651) Pub Date : 2019-04-24
    Guisheng Hou, Yu Wang, Baogui Xin

    Sustainable supply chains are the developmental trend for economics. They require governments and enterprises to have strong abilities to face and deal with extensive, complicated and long-term problems to optimize multiple targets. This work enriches the content of product sustainability and constructs decision models of the focal company and supplier using four different strategies in the differential game with respect to the three pillars of sustainability. Then, it analyzes the effects of subsidies and the focal company’s incentives. The results show that the profit sharing ratio is powerful, and it is positively related to the product sustainability and profits of each member. Subsidies have higher significant effects on the improvements in product sustainability, environmental performance, and the profits of each member and the holistic supply chain than incentives.

    更新日期:2019-04-24
Some contents have been Reproduced by permission of The Royal Society of Chemistry.
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