Comparative assessment of waste disposal systems and technologies with regard to greenhouse gas emissions: A case study of municipal solid waste treatment options in China

Wang, Kehua; Nakakubo, Toyohiko

doi:10.1016/j.jclepro.2020.120827

Cited by 39 publications

(14 citation statements)

References 8 publications

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“…The losses in nitrogen mass are normally in the form of NH3 emissions, whereas trous oxide emission, which has 265 times the global warming potential of CO2 [27], Emissions are formed due to inadequate aerobic conditions of composting [9]. Generally, the creation of anaerobic zones in compost mixtures results in CH 4 emissions, whereas nitrogen transformation and loss (NH 3 and N 2 O) are linked to ammonification, nitrification, and denitrification during the composting process [17][18][19], but still they are less than GHGs' emissions generated from landfilling and waste-to-energy processes [20][21][22]. During the composting process, various forms of VOCs are formed, where the rates and specific forms of these emissions highly depend on the feedstock materials and composting phases, taking into account that aeration of the composting mixture has a major role in releasing of these compounds [23,24].…”

Section: Figurementioning

confidence: 99%

Gaseous Emissions from the Composting Process: Controlling Parameters and Strategies of Mitigation

Sayara

Sánchez

2021

Processes

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Organic waste generation, collection, and management have become a crucial problem in modern and developing societies. Among the technologies proposed in a circular economy and sustainability framework, composting has reached a strong relevance in terms of clean technology that permits reintroducing organic matter to the systems. However, composting has also negative environmental impacts, some of them of social concern. This is the case of composting atmospheric emissions, especially in the case of greenhouse gases (GHG) and certain families of volatile organic compounds (VOC). They should be taken into account in any environmental assessment of composting as organic waste management technology. This review presents the relationship between composting operation and composting gaseous emissions, in addition to typical emission values for the main organic wastes that are being composted. Some novel mitigation technologies to reduce gaseous emissions from composting are also presented (use of biochar), although it is evident that a unique solution does not exist, given the variability of exhaust gases from composting.

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Section: Figurementioning

confidence: 99%

Gaseous Emissions from the Composting Process: Controlling Parameters and Strategies of Mitigation

Sayara

Sánchez

2021

Processes

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“…The advantage of this study is the development of equipment that provides, unlike, for example, works [15,16,35], for the comprehensive protection of the main components of the environmentthe atmosphere, hydrosphere, and lithosphere from man-made loading at sites of SHW storage. The benefit of the proposed equipment is the energy-saving, automated (or semi-automatic) background mode of operation, as well as the use of a new environmentally-friendly operating adsorption agent.…”

Section: Discussion Of Results Of Devising and Investigating The Effectiveness Of The Technology For Localization Of Environmental Risks mentioning

confidence: 99%

“…Paper [15] reports the results of the analysis of atmospheric emissions during the operation of open waste dumps, including when they catch fire. It was found that dangerous vapor-gas emissions are more than 3.5 times more intense during combustion than during fire-safe aerobic storage [16]. As a reduction in the impact of landfills on the atmosphere, the authors consider an innovative method of semi-aerobic burial.…”

Section: Introductionmentioning

confidence: 99%

Devising the technology for localizing environmental pollution during fires at spontaneous landfills and testing it in the laboratory

Bondarenko¹,

Dudar

Yavorovska

et al. 2021

EEJET

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This paper reports an analysis of current issues related to storing solid household waste, and, specifically, the problem of environmental pollution when unsorted solid household waste (SHW) is ignited. A technology has been developed to improve environmental safety and ensure a reduction in the anthropogenic load on the atmosphere, hydrosphere, and lithosphere in the event of fires at the sites of solid waste storage. The operation of the proposed equipment, taking into consideration all the provided operating modes and additional options, is energy-saving and automated (or semi-automatic), which makes it especially relevant under modern conditions. The technology significantly improves the efficiency of the processes to eliminate the ignition of SHW and localize their environmental consequences for the territories adjacent to landfills. Laboratory tests were carried out, which proved the effectiveness of practical application for the designed equipment of a new environmentally active adsorption mixture for the purpose of cleaning the waste filtrate, as well as its use for the formation of an anti-filtration screen in the mound of SHW. Experiments have shown that the tested sample of the aqueous suspension of the proposed environmentally active mixture adsorbs calcium (by 92 %), overall iron (by 91 %), overall phosphorus (by 75 %), zinc (by 31 %), and ammonium (by 19 %). This leads to a decrease in the overall toxicity of the solution and indicates the possibility of improving the environmental safety of waste fires when operating the proposed technical solution by purifying the filtrate released during fires in landfills. The reported results, specifically, the technology for localizing the environmental consequences of uncontrolled waste ignition could be used in the process of modernizing the technical support for sanitary treatment schemes in urban areas.

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“…The aim of this review paper is to investigate the current situation in the field of waste-to-biogas both in Europe and worldwide. Previous reviews and research papers in this field mostly analyse technological progress [45][46][47][48][49], legislative limitations [50][51][52][53], case studies [54][55][56][57][58][59][60][61], impacts on efficiency [62][63][64][65], environmental impacts [66][67][68][69][70] and problems associated with public opinion [71][72][73][74]. A study of challenges including a proposed implementation framework for sustainable municipal organic waste management using biogas technology in Asian countries has also recently been conducted [75].…”

Section: Aim Scope and Structure Of The Reviewmentioning

confidence: 99%

Current Status and Review of Waste-to-Biogas Conversion for Selected European Countries and Worldwide

et al. 2022

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Growing world population and increasing population density are leading to increasing waste production with biological waste amounting to several billion tonnes annually. Together with the increasing need for renewable energy sources, waste-to-biogas conversion as a prime example of waste-to-energy technology represents a facile way of solving two problems simultaneously. This review aims to address the recent progress in the field of waste-to-biogas technology, which is lately facing intensive research and development, and present the current status of this waste treatment method both in technological and legislative terms. The first part provides an overview of waste and waste management issues. This is followed by a detailed description of applicable waste-to-energy (WtE) technologies and their current implementation in selected European countries. Moreover, national energy and climate plans (NECPs) of selected EU Member States are reviewed and compared with a focus on implementation of WtE technologies. In a further section, biogas production from waste around the world is reviewed and compared country wise. Finally, an outlook into the future of WtE technologies is provided alongside the conclusions based upon the reviewed data.

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Comparative assessment of waste disposal systems and technologies with regard to greenhouse gas emissions: A case study of municipal solid waste treatment options in China

Cited by 39 publications

References 8 publications

Gaseous Emissions from the Composting Process: Controlling Parameters and Strategies of Mitigation

Gaseous Emissions from the Composting Process: Controlling Parameters and Strategies of Mitigation

Devising the technology for localizing environmental pollution during fires at spontaneous landfills and testing it in the laboratory

Current Status and Review of Waste-to-Biogas Conversion for Selected European Countries and Worldwide

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