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Article
Environmental Sciences
Guangming Zhang et al.
Summary: The study conducted a landfill simulation reactor experiment to achieve rapid landfill stabilization. The enhanced process showed higher degradation efficiency and lower economic cost compared to the traditional process, resulting in better environmental benefits.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Axel Gautier et al.
Summary: Waste pricing is essential for promoting waste reduction and sorting. Different pricing instruments, including differentiated prices for waste fractions and the choice of appropriate pricing units, are important factors in achieving these goals. This study uses a comprehensive dataset from Wallonia, Belgium to test the effectiveness of various pricing instruments over a 10-year period. The results show that price elasticities play a significant role in reducing residual waste, with weight-based pricing systems contributing substantially to waste reduction.
Article
Engineering, Environmental
Lek Hong Lim et al.
Summary: Waste-to-Energy through MSW incineration is an effective waste management strategy, but it releases CO2 and produces ash. This study explores the use of ash-derived sorbents for CO2 capture. The analysis shows that the addition of certain fuels increases the cost of electricity, but also reduces CO2 emissions. Optimizing energy-intensive processes and policy support are important for further improvement and adoption of negative emission technologies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Haimei Li et al.
Summary: The economic and environmental impacts of the reverse logistics process of the waste disposal chain were studied in Xi an City, China. The financial costs per ton of food waste and residual waste were $46.35-$49.03 and $62.52-$88.84, respectively. The environmental impacts accounted for a high percentage in the entire waste management chains, with labor costs as the biggest financial expenditure and the fuel cycle of C&T vehicles as the major cause of environmental impacts. Source-separated waste management scenarios had more environmental benefits but poorer economic positions.
Article
Green & Sustainable Science & Technology
Filomena Ardolino et al.
Summary: This study aims to assess the social performances of different management schemes for plastic waste from electronics, end-of-life vehicles, and construction and demolition waste. The research indicates that innovative solutions can lead to positive impacts on workers' health, local economies, and society. However, the limited maturity of the proposed technologies requires a longer period of economic incentives to demonstrate their validity in polymer recovery.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
Article
Environmental Sciences
Yash Aryan et al.
Summary: The study evaluates the environmental and economic burden of waste collection practices in Dhanbad city, India. Alternative methods were suggested to optimize resource utilization and maximize material recovery. The impacts were assessed for different scenarios, with the baseline scenario having the highest environmental impacts.
ENVIRONMENTAL RESEARCH
(2023)
Review
Engineering, Environmental
Estefania Sanabria Garcia et al.
Summary: This study reviews how the scientific community assesses the technical substitutability of recycled materials in LCA. The results show that most papers consider the technical and economic aspects of material substitutability, but do not consider the final application of the recycled material. Plastics are the most studied material, and mass is the most commonly used property to quantify technical substitutability. Certain materials are analyzed in specific life cycle stages. Furthermore, substitutability is still a concept in development, with some papers using substitutability values that may not be representative of specific cases.
Article
Engineering, Environmental
Olumide Olafasakin et al.
Summary: Material Recovery Facilities (MRFs) play a crucial role in achieving a circular economy by separating valuable recyclables from complex waste streams. This study uses techno-economic analysis (TEA) and life cycle assessment (LCA) to evaluate the economic feasibility and environmental impacts of a standalone, single-stream MRF processing 120,000 tonnes per year. Results show that waste composition significantly affects costs and global warming potential, while parameters like facility capacity, fixed capital cost, and waste tipping fees impact the economic viability of MRF operations.
Article
Engineering, Environmental
Xu Chen et al.
Summary: This study compared 30 days of thermophilic composting (TC) of food waste with seven days of black soldier fly (BSF) pretreatment followed by TC (BC). BC treatment was found to decrease protein-like substances and increase humus substances more quickly, resulting in a 21.6% shorter maturity time and 106.8% higher humification index compared to TC. Additionally, BC had significantly higher levels of total and available phosphorus, as well as higher richness and diversity of humus synthesis and phosphate-solubilizing bacteria (PSB). The introduction of BSF gut bacteria contributed to a rapid humification process and phosphorus activation. These findings provide novel perspectives on food waste management.
Article
Engineering, Environmental
Dan Cudjoe et al.
Summary: The increasing generation of plastic waste globally is causing major concerns for public health and the environment, with China being the largest contributor. The current method of incineration for treating the increased plastic waste has negative environmental consequences. Pyrolysis has emerged as an environmentally friendly technique for energy and material recovery from plastic waste. This study evaluates the financial and ecological feasibility of power production from oil derived from pyrolysis of mixed plastic wastes in China from 2009 to 2028. The findings show a significant increase in plastic waste collected by 2028, with the potential to generate a substantial amount of oil for power production. The project is economically viable and profitable, with positive indicators such as net present value, profitability index, and return on investment. The life cycle assessment results reveal the project's positive impact on reducing global warming through the avoidance of coal combustion.
Article
Construction & Building Technology
Sadegh Alizadeh et al.
Summary: Municipal Solid Waste (MSW) management is a global issue with increasing importance due to population growth, urbanization, and changing consumption patterns. This study presents a comprehensive framework to assess the sustainability of MSW management systems in Iran. By considering environmental and economic aspects, the eco-efficiency index is used to evaluate the systems' sustainability. Data Envelopment Analysis (DEA) is applied to rank the systems based on their eco-efficiency indices, considering various parameters. The findings highlight the priority of landfill and anaerobic digestion systems with/without CHP, but also indicate limitations in data availability and assumptions made during the analysis.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Environmental Sciences
Sarah Schmidt et al.
Summary: Waste management aims to protect human health and the environment by reducing adverse impacts associated with waste generation and treatment. However, the performance of waste management systems is usually monitored based on recycling rates, rather than environmental impacts. This study introduces Environmental Waste Utilization (EWU) as an indicator to monitor the capability of waste management systems to reduce the adverse impacts of waste generation and management. The EWU Dashboard, a spreadsheet-based calculation tool, is used to operationalize EWU. Case studies on different types of waste are presented to demonstrate the applicability and advantages of EWU compared to material efficiency indicators. The study shows that EWU-based monitoring allows for identifying environmentally preferable waste management strategies and provides sound decision support.
RESOURCES CONSERVATION & RECYCLING ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
Rutjaya Prateep Na Talang et al.
Summary: This research comparatively investigated fifteen national-level integrated municipal solid waste (MSW) management schemes and determined that the composting-incineration-RDF scheme is the most preferable option with the lowest environmental costs and highest AHP priority score.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Economics
Thomas Broberg et al.
Summary: In this study, a net social cost framework is used to analyze policy issues related to cross-border trade in waste fuel. The results indicate that using imported waste fuel in a highly efficient CHP in a cold climate is beneficial, and the results are robust to variations in technical, economic, and environmental assumptions.
Article
Green & Sustainable Science & Technology
Livia Fernanda Rodrigues et al.
Summary: This study analyzes the use of gasifiers and incinerators as technology for municipal solid waste treatment and energy generation in three municipalities in Brazil. The results show that the second scenario has greater energy potential but higher generation costs. Different cities choose different technologies based on their levels of organic matter. However, neither technology is economically viable in any city or condition, highlighting the need for government incentives to promote their feasibility.
Article
Engineering, Environmental
Nanlin Liao et al.
Summary: Changes in MSW properties and parameters due to MSW source segregation and technological advancements in China have led to the need for new studies on GHG emissions of MSW treatment systems. This study analyzed GHG emissions in Shanghai before and after waste source segregation, showing a reduction in emissions after source segregation. Waste to energy incineration is not recommended, while anaerobic digestion has the potential for significant GHG emission reductions.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Engineering, Environmental
Junnian Song et al.
Summary: This study constructs an integrated municipal solid waste management system focusing on reinforced waste recycling and energy recovery to achieve enhanced resource, energy, and environmental benefits(REEBs). Three scenarios with different waste collection and recycling levels are designed based on regional disparities. The results indicate that Guangdong, Jiangsu, Shandong, Zhejiang, and Sichuan have more advantages in terms of REEBs.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Green & Sustainable Science & Technology
Qingyu Lei et al.
Summary: This study proposes a poly-generation system (PGS) that integrates the pyrolysis, incineration, and anaerobic digestion processes to reduce the treatment cost of municipal solid waste (MSW) by utilizing internal supplies of auxiliary fuel and electricity. A mixed integer nonlinear programming approach is used to optimize the feed ratio and achieve supply-demand balance in the PGS. The results show that PGS can effectively reduce MSW treatment cost and improve resource utilization.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Engineering, Environmental
Yinbang Ren et al.
Summary: This article reviews the settlement mechanism of municipal solid waste (MSW) landfills and analyzes the influencing factors, providing practical engineering suggestions. Four common methods for studying landfill settlement and six categories of settlement models are presented. Limitations in modeling and future research directions are also discussed.
Article
Engineering, Environmental
Gudmundur Kristjan Oskarsson et al.
Summary: Waste management in Iceland has made considerable progress in recent years, but still lags behind other Nordic and EU countries. Incineration and landfilling processes are regulated and standardized, with improving reporting standards. However, Iceland currently exceeds EU landfill targets, indicating the need for immediate and significant changes in waste management.
Article
Thermodynamics
Ruixi Zhao et al.
Summary: This study proposes four different scenarios for Municipal Solid Waste treatment in Beijing, with scenario 4 (MBT system) ranking highest in reducing landfill amount, improving energy recovery efficiency, and reducing GHG emissions. Scenario 3 achieves the highest economic benefit. The continuous implementation of waste separation policy and waste-to-energy options in China are critical for establishing an efficient waste management system.
Article
Environmental Sciences
Tonni Agustiono Kurniawan et al.
Summary: Xiamen is currently facing challenges in municipal solid waste management, such as lack of a complete garbage sorting and recycling system, absence of waste segregation between organic and dry waste at source, and incomplete information about the generated waste. Solutions involve enhancing source separation, improving recycling systems, legislation, terminal disposal facilities, incorporating digitization, and establishing standards for recycled products. Learning from the effectiveness of Hong Kong's waste management system is crucial for Xiamen's future MSWM development.
ENVIRONMENTAL POLLUTION
(2021)
Review
Green & Sustainable Science & Technology
Yin Ding et al.
Summary: The management of MSW in China still has room for improvement and should be combined with advanced technologies to achieve resource utilization. The amount of MSW generated in eastern coastal regions of China is increasing, but the management efficiency is lower than that of developed countries.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Harish Jeswani et al.
Summary: The study compares the environmental impacts of chemical recycling through pyrolysis with other plastics waste management options and virgin plastics production. Results indicate that pyrolysis has lower climate change impact and life cycle energy use, but higher other impacts compared to mechanical recycling, energy recovery, and virgin plastics production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Chunchao Liu et al.
Summary: The study developed an environmental damage cost assessment method for MSW management in Shanghai using the LIME model. Results showed that social assets damage cost was dominant, with landfill mainly causing social assets damage and incineration mainly causing human health damage. Scenarios analysis indicated that implementing MSW separation could reduce total environmental damage cost by about one-third.
Article
Engineering, Environmental
Bhupendra K. Sharma et al.
Summary: This study quantifies and compares the cost of municipal solid waste (MSW) management systems under different scenarios using life cycle cost (LCC) analysis approach. The study found that the scenario combining recycling and sanitary landfill was the most economically viable option, while the incineration-based scenario was the most cost-intensive. Sensitivity analysis showed that O&M cost was the most sensitive parameter affecting the net LCC of scenarios.
Article
Agricultural Engineering
Jarungwit Boonnorat et al.
Summary: This research investigates the efficiency and greenhouse gas emissions of non-floating and floating bed AS systems treating landfill leachate, finding that the floating bed AS system maintains stable treatment efficiency due to an abundance of effective bacteria. The study shows that CO2 emissions are positively correlated with organic loading and inversely correlated with HRT, while CH4 emissions are positively correlated with HRT, and N2O emissions are mainly linked to nitrogen loading.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Rongrong Lei et al.
Summary: This study compiled the global status of dioxin emissions across 150 countries/regions, using China as an example. It found that open burning processes were the most important sources of dioxins globally, with emissions in developed countries remaining low and stable, while those in developing countries remained high. China's dioxin emissions have been stable around 9 kg TEQ, with industries such as metal production and waste incineration having significant potential for reduction.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Sarah Schmidt et al.
Summary: In Germany in 2017, 32 kg per person and year of SUPP household waste were generated, with 28 kg per person and year being packaging waste. Banning specific non-packaging SUPPs and optimizing source-separation can increase the final recycling rates of SUPPs in household waste to 50%, while minimizing reductions in waste quantity.
Article
Engineering, Environmental
Toshiaki Sasao et al.
Summary: The study found that weight-based pricing can significantly reduce the amount of waste, with the most pronounced effect observed in the first year after introduction, gradually diminishing over time and disappearing after five years. The price elasticities of weight-based pricing were lower than those of volume-based pricing for the first five years, with the difference between them disappearing after five years.
Article
Environmental Sciences
Yeqing Tong et al.
ENVIRONMENTAL POLLUTION
(2020)
Article
Engineering, Environmental
Jianguo Liu et al.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2020)
Article
Environmental Sciences
Ke Cheng et al.
ENVIRONMENTAL POLLUTION
(2020)
Article
Green & Sustainable Science & Technology
Qianqian Yu et al.
JOURNAL OF CLEANER PRODUCTION
(2020)
Review
Energy & Fuels
Yaqi Peng et al.
Review
Engineering, Environmental
Bruno Ribas Alzamora et al.
Article
Energy & Fuels
Arno W. Zimmermann et al.
FRONTIERS IN ENERGY RESEARCH
(2020)
Article
Engineering, Environmental
Shan Gui et al.
Article
Engineering, Environmental
Eren Yildiz-Geyhan et al.
RESOURCES CONSERVATION AND RECYCLING
(2019)
Article
Environmental Sciences
Zongguo Wen et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Engineering, Environmental
Zhujie Chu et al.
Article
Environmental Sciences
Peter C. Slorach et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Review
Environmental Sciences
R. M. Deus et al.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2019)
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Yongyou Nie et al.
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R. Slimani et al.
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Marcio Montagnana Vicente Leme et al.
RESOURCES CONSERVATION AND RECYCLING
(2014)
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Engineering, Environmental
Eva Cifrian et al.
RESOURCES CONSERVATION AND RECYCLING
(2012)
Article
Engineering, Environmental
Simon Dresner et al.
RESOURCES CONSERVATION AND RECYCLING
(2010)
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Engineering, Environmental
Pieter J. H. van Beukering et al.
Article
Engineering, Environmental
Andreas Jorgensen et al.
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
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