Low-NOX combustion is the main technology for reducing NOX emission in coal-fired plants. In this work, numerical simulation was conducted on a 600-MWe down-fired lean coal boiler to study the effects of important factors on NOX reduction, namely, the arrangements of tertiary air (TA), the jet angle of secondary air (SA), the separated over-fire air (SOFA) ratio, and the SOFA jet angle. The optimal

An assessment of hybrid solar desalination system consists of solar panel integrated with single slope solar distiller improved by salty water preheating and porous material via productivity, energy, exergy, exergoeconomic and exergoenvironmental is performed under metrological conditions of Alexandria, Egypt. Water preheating is performed by passing it over the solar panel front surface before it

The impacts of agate exploitation on soils and the adjacent landscapes are poorly understood. In addition, agate processing produces residues whose potential use in agriculture must be evaluated, in order to develop cleaner production practices. The aims of this study were: i) to estimate the effects of agate mining on the soil and the adjacent landscapes; ii) to evaluate the chemical and mineralogical

Emulating the positive developments of consumer products manufacturing industries, the pharmaceutical manufacturing (PM) industry is also leaning towards sustainable manufacturing. Expectations are on the rise to lower the undesirable impacts on the earth ecosystem caused by the manufacturing companies via new circular economy implementation. The current sustainable practices of PM industry focus largely

This study investigates the validity of the Environmental Kuznets Curve (EKC) hypothesis for six West African countries over 1970-2017 while using human capital and biocapacity as additional determinants of carbon emissions. It uses the panel quantile regression method that provides robust results in case the classical econometric assumptions fail. The empirical results revealed that a U-shaped relationship

Nowadays, the high penetration of renewable energy sources (RESs) with non-uniformly distributed patterns has created unprecedented challenges for regional power systems to maintain system flexibility and reliability. These technical challenges obligate power system operators to curtail part of the produced renewable energy at various scheduling intervals. Motivated by these challenges, grid-connected

China has the highest automobile ownership and lowest recycling rates of end-of-life vehicles (ELVs) in the world. Due to the incompatibility that exists between environmental and economic objectives, the non-standardization of the dismantling industry has seriously affected its development. Therefore, from three aspects of scale, technology, and depth, we conducted a life cycle assessment (LCA) and

Long-distance power transmission is a very important way of energy utilization, which can achieve regional environmental benefits through the transfer of air pollutants. But, how to evaluate such benefits has not been well presented. This study uses a generalized approach to assess the environmental and health benefits of power transmission based on the GAINS model. The impact pathway approach is adopted

Environmental problems caused by the rapid popularization of agricultural mechanization and the increase of energy input in China’s agricultural production have caused increasing concern. Based on the study sample of China’s 30 provinces from 2000 to 2017, this paper estimates the energy-environment performance of agricultural sector using the global DEA method. Furthermore, it applied a panel TOBIT

Selecting efficient and economical methods to recycle the original concrete in construction and demolition wastes is regarded as one of the obstacles for construction companies to successfully achieve sustainable development. This study explored this challenging task by examining the influences of the compressive strength ratio between original concrete and recycled aggregate concrete on the slump

Climate change problems have become a worldwide concern. In response to containing global climate change, there has been a proliferation of theories and policies aimed at driving tourism towards ‘low-carbon tourism’. The problem becomes even greater if turning to cities. Constructing a low-carbon tourism city requires a comprehensive understanding of urban low-carbon tourism development rather than

Energy consumption is a crucial aspect in wastewater treatment plants. Biological processes using aeration systems contribute significantly to energy usage. Tao-bay plants in northern Taiwan are recent plants that have not introduced automated control on aeration systems yet. The use of numerical methods aims to predict optimized airflow rate and energy consumption and to provide references for the

Loss of crop diversity has been recognized as a serious threat to agricultural sustainability. This paper considers crop diversity to be a special input in the production process of agricultural goods. Quantile regression was applied to analyze the effects of crop diversity on agricultural output, non-point source pollution and Agricultural Eco-Efficiency (AEE) in China. We found that crop diversity

Urbanization and population growth have resulted in a significant increase in the amount of generated construction and demolition (C&D) waste worldwide. Improper C&D waste management has led to a tremendous landfilled C&D waste, which has placed a great concern over its adverse impacts on the environment and natural resources. Appropriate C&D waste recycling mechanism as a remedial action saves our

Each year, millions of tons of electronic waste (or e-waste) are generated worldwide, thus, fueling concerns among scholars, practitioners, policymakers, and governments about e-waste recycling and management. The past few years have witnessed a growing interest among scholars to examine the behavioural issues concerning e-waste recycling. However, most of the existing studies have focused on adopting

Rapid urbanization has engendered increased fragmentation of urban green spaces combined with declining green space connectivity. This situation is significant in urban fringe areas wherein rural areas transition to urban spaces. Therefore, it is important to understand how to scientifically and rationally construct green space ecological networks, connect fragmented habitats, and protect biodiversity

The utilization of biomass waste by converting to biochar seems to be an efficient and environmental friendly way of biomass treating. Biochar is produced from biomass by low temperature pyrolysis (torrefaction). Application of biochar in agriculture as soil supplement has been recently a highly discussed topic. Lot of published works, however, deals with commodities, which are not in current disposal

In recent years, distributed energy systems (DES) have received an extensive attention, but they also face technical limitations in system architecture, operational strategies, and optimization methods. In this paper, for two typical DES, Natural Gas Cooling and Heating Triple Supply System (CCHP) and Hybrid Energy Distributed System (HDES), multi-objective optimization and evaluation have been carried

The modification of asphalt binder using recycled plastics such as polyethylene terephthalate (PET) may improve its rheological characteristics while providing secondary environmental benefits. In this study, the chemical recycling of PET was conducted to synthesize additives and used in conjunction with styrene-butadiene-styrene (SBS) to modify asphalt binder. The properties of the modified asphalt

Bio-based adhesives could be an important addition to dispersion- and solvent-based adhesives due to increasing environmental and health requirements. This could also improve the environmental impact of many composite products. The aim of this review is to examine whether adhesive technologies have already been investigated for their environmental impact and if so, which biomass has been used for which

Wastewater treatment plants (WWTPs) need to abandon the linear concept and adapt to the circular philosophy integrating standards of technological performance but also environmental, economic and social indicators. However, this change cannot be made by merely replacing one technology, but integrated solutions need to be applied. In this framework, a new strategy of treatment has gained strength in

Formic acid has been demonstrated to aid the rapid start-up and stable maintenance of nitritation (from ammonia to nitrite) in our previous work. In this work, a mathematical model integrated the decay and recovery of nitrifiers (including ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB)) during and withdrawing formic acid treatment was established. The decay of nitrifiers was

Uncertainty in real-world situations disrupts operations, including the collection process in closed-loop supply chains (CLSCs). A collection disruption is more critical in the pharmaceutical sector since pharmaceutical leftovers contain chemicals that threaten the environment and human health. This paper revolves around the challenges of a real pharmaceutical case that implements circular economy

A free-floating bike sharing system is an up-and-coming and marketable solution to promote transport flexibility and health benefits, which many people regard as a realistic way of generating more environmentally-friendly trips. Although many studies have investigated the associations between bike sharing usage and built environment, the existing literature has limited evidence about the relative importance

Bioaccumulation of heavy metals (HMs) in the food supply chain is a crucial environmental and health issue in need of urgent risk reduction action plans. This study assesses the daily intake of four HMs, i.e. cadmium, mercury, lead and arsenic, and four minerals; chromium, nickel, selenium and zinc. 456 Danish food items were grouped in six food categories (grains, fruits and vegetables, oils and condiments

Plastic film mulching can deplete soil organic carbon (SOC) stock but increase GHG emissions. But, few research works have focused on combined effect of cultivation techniques and nitrogen applications on the greenhouse gas intensity (GHGI), net ecosystem carbon budget (NECB) and corn production. Therefore, a two years field study was conducted in 2017–2018, using the following six treatments: RP0:

Using renewable energy, especially solar energy, is an essential requisite for preventing global warming and climate change. Solar-powered steam generation is one of the recent solutions to the problem of environmental pollution and can be a promising way to generate clean energy. In this study, the superficial and volumetric approaches of the zinc oxide nanoparticles (ZnO) in solar vapor generation

The Sustainable Development Goals (SDGs) within the United Nations 2030 Agenda emerged in 2015, becoming an unprecedented global compass for navigating extant sustainability challenges. Nevertheless, it still represents a nascent field enduring uncertainties and complexities. In this regard, the interplay between digitalization and sustainability unfolds bright opportunities for shaping a greener economy

Environmental pollution, caused by industrial wastewater discharge, restricts the transformation of China's industrial economy. In terms of its gross industrial product, Jiangsu Province has always been among the top-ranking areas of China. To ensure the green and sustainable development of Jiangsu’s industry, it is imperative to formulate specific strategies toward the reduction of industrial water

Increased penetration of renewable resources in power systems and consequently cut back in the inertia of the whole power system is a significant concern for Unit Commitment (UC) in terms of energy scheduling and frequency dynamics management. The new modeling of the UC problem presented in this paper provides optimal scheduling of the energy and reserve considering the frequency dynamics of the power

Combustion can concentrate phosphorus (P) from poultry litter into an ash product that is easier to transport for land application. This was the first life cycle assessment (LCA) study to investigate the efficacy and sustainability of a fluidized bed combustion (FBC) system using poultry litter to heat poultry houses and produce electricity in the United States to replace liquid propane gas (LPG) and

Nowadays, air pollution caused by traffic congestion has progressively drawn more and more attention. This paper proposes a traffic management and control platform from the perspective of sustainable development to reduce both vehicle emission and delay along arterial with contraflow left-turn lane (CLL). Unlike the traditional intersection layout and the control strategy, the existence of the contraflow

This paper presents theoretical models of the phase transformation and the change of mechanical properties of oil well cement due to underground carbonation reactions. Application of oil well cement has become common practice in CO2 underground storage formations. However, the CO2 stored underground may leak through damaged well cement, and it can cause carbonation reactions which may significantly

With the rapid development of information and communication technologies, platform retailing has developed rapidly in recent years. The ensuing explosive growth of express packing boxes has created a considerable environmental impact. To reduce environmental pollution, in recent years, many retail platforms have begun to encourage consumers to recycle packing boxes since most of the packing boxes can

A comprehensive evaluation including residents’ physical, psychological and cultural perceptions of their community can better guiding initiatives to improve community construction. Landsenses ecology is an emerging discipline which emphasizes the combination of the environment and human’s subjective perceptions and provides a theoretical basis for the comprehensive assessment of the perceptions of

In Thailand, the percentage of energy consumption and greenhouse gas (GHG) emissions in freight transportation sectors keep growing rapidly in the opposite side of GHG reduction target. The objective of this study is to evaluate the impacts on socio-economic status and GHG emissions in Thailand when introducing new greenhouse gas mitigation options in freight transportation sectors according to Thailand