Influence of different factors in the life cycle assessment of mixed municipal solid waste management systems – A comparison of case studies in Finland and China

Liikanen, Miia; Havukainen, Jouni; Hupponen, Mari; Horttanainen, Mika

doi:10.1016/j.jclepro.2017.04.023

Cited by 37 publications

(23 citation statements)

References 22 publications

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“…In a thorough LCA work comparing different waste management scenarios in Macau, Song et al reported waste transportation as one of the most impacting activities, especially when regarding resources depletion [63], contributing to oil consumption as well as NO x production. This was recently corroborated in studies conducted to assess different possible municipal solid waste management scenarios for the island of Mauritius [64] and also for selected areas in China and Finland [65]. Observing Figure 12 it may be seen that these different boundaries do not interfere significantly in the correlation between both scenarios, meaning that the global performance of the incineration plant is not affected by these modifications.…”

Section: Sensitivity Analysissupporting

confidence: 57%

“…The electric power generation revealed very prone to the success of the incineration facilities (as in general in EU-27 region) and also in other reported studies [45,46,65], but this is not always true. Depending on the type of resources utilized to compose the grid mix electricity available for the consumer, the avoided impacts generated by the electricity provided from incineration will be different and sometimes not so significant [59].…”

Section: Life Cycle Impact Analysismentioning

confidence: 87%

“…This seems to create a balance between all the impact categories, and that is why landfill type does not seem to affect the plant performance as may be confirmed by the high correlation coefficient to Sc0 seen in Figure 12. Liikanen et al [65] reported the major contribution of landfill to the increase of EP impact due to NOx emissions, as well as GWP worsening in the absence of landfill gas collection. Concerning the main differences encountered between Sc0 and Sc1, GWP discrepancy is possibly due to the inclusion of plant construction, waste transport to the incinerator and also bottom ashes processing.…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…Regarding Sc4, all the impact categories show inferior results to the reference case, owing the environmental burdens to the plant energy requirements, once electricity self-consumption will not occur. Other authors had already reported on the importance of recovering energy through incineration concluding that lower carbon footprints and higher electricity savings are attained [55,64,65].…”

Section: Sensitivity Analysismentioning

confidence: 99%

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Environmental Analysis of Waste-to-Energy—A Portuguese Case Study

2018

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Environmental evaluation of the waste treatment processes for the area of Greater Porto (Portugal) is presented for the year 2015. The raw data for the energy recovery plant (ERP) provided by the waste management entity were modelled into nine environmental impact categories, resorting to a life cycle assessment dedicated software (GaBi) for the treatment of 1 tonne of residues. Also, a sensitivity analysis was conducted for five scenarios in order to verify the assessment quality. Results were compared to two European average situations (typical incineration plant and sanitary landfill with no waste pre-treatment), which showed that these facilities perform better or at the same level as the average European situation, mostly due to the high efficiency observed at the ERP and to the electricity production in the incineration process. A detailed analysis concluded that these helped to mitigate the environmental impacts caused by some of the processes involved in the waste-to-energy technology (landfill showing the harder impacts), by saving material resources as well as avoiding emissions to fresh water and air. The overall performance of the energy recovery plant was relevant, 1 tonne of waste saving up to 1.3 million kg of resources and materials. Regarding the environmental indicators, enhanced results were achieved especially for the global warming potential (−171 kg CO 2-eq.), eutrophication potential (−39 × 10 −3 kg PO 4-eq.) and terrestrial ecotoxicity potential (−59 × 10 −3 kg DCB-eq.) categories. This work was the first to characterize this Portuguese incineration plant according to the used methodology, supporting the necessary follow-up required by legal frameworks proposed by European Union (EU), once this facility serves a wide populational zone and therefore is representative of the current waste management tendency in the country. LCA (life cycle assessment) was confirmed as a suitable and reliable approach to evaluate the environmental impacts of the waste management scenarios, acting as a functional tool that helps decision-makers to proceed accordingly.

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Section: Sensitivity Analysissupporting

confidence: 57%

Section: Life Cycle Impact Analysismentioning

confidence: 87%

Section: Sensitivity Analysismentioning

confidence: 99%

Section: Sensitivity Analysismentioning

confidence: 99%

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Environmental Analysis of Waste-to-Energy—A Portuguese Case Study

2018

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“…MSW LCA case studies and scenario analysis: Many case studies have been conducted based on different geographical distributed MSWM systems, such as systems based in China [ 23 , 30 ], Sao Paulo, Brazil [ 31 ], Finland and China comparison [ 32 ], Sakarya, [ 33 ], Naples, Italy [ 34 ], Lahore, Pakistan [ 35 ], Bolivia [ 36 ], and France [ 37 ]. Scenario analysis is a commonly used method in the conduction of MSW comparative studies [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Impact Assessment of Garbage-Classification Based Municipal Solid Waste Management Systems: A Comparative Case Study in China

Yujun¹,

Li²,

Zhai³

2020

IJERPH

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Confronted with a series of problems caused by surging generation of municipal solid waste (MSW), the Chinese central and local governments have promulgated and implemented policies to deal with them, including promotions of the classification of MSW. However, to date, practical knowledge and understanding about benefits for garbage classification from its environmental performance perspective is still limited. The present study is purposed to comprehensively investigate the environmental effects of garbage classification on municipal solid waste management (MSWM) systems based on three proposed garbage classification scenarios in China, via a comparative life cycle impact assessment (LCIA). Taking advantage of Impact Assessment of Chemical Toxics (IMPACT) 2002+ method, this comparative LCIA study can quantitatively evaluate midpoint, endpoint, and single scored life cycle impacts for the studied MSWM systems. A Monte Carlo uncertainty analysis is carried out to test the effectiveness and reliabilities of the LCIA results. The LCIA and uncertainty analysis results show that MSWM systems based on various garbage classification scenarios have significant variations in the studied midpoint, endpoint, and single scored environmental impacts. Different garbage classification scenarios have their individual environmental-friendly superiority for specific impact categories. Overall, results of this study demonstrate that MSW treatment systems integrated with garbage classification are more environmentally friendly by comparison with non-classification; and that the more elaborate the level of MSW classification, the smaller its impacts on the environment.

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Sustainability of Waste Management Systems: Energy Recovery

Deviatkin

Horttanainen

Havukainen

2021

Encyclopedia of Sustainable Management

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Energy recovery from waste represents an economically, socially, and expectedly environmentally acceptable option of waste management. Energy recovery is widely represented by waste incineration, gasification, pyrolysis, and anaerobic digestion. Sustainability of all energy recovery methods is not only determined by the recovery processes themselves but by a wide range of components of the energy recovery systems, such as waste properties, operating conditions, types of products, and demand on them, to name a few. For example, biowaste is more suitable for anaerobic digestion than incineration.At the same time, incineration of waste without the possibility to utilize heat produced neither as district, nor process heat, could have a higher impact on the environment than its gasification or pyrolysis. When systematically assessing energy recovery methods, the types of products being derived (electricity, heat, chemicals, biogas, monomers, oils, etc.), and the alternatives substituted on the market plays one of the most important roles in the sustainability of energy recovery from waste.

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Influence of different factors in the life cycle assessment of mixed municipal solid waste management systems – A comparison of case studies in Finland and China

Abstract: Influence of different factors in the life cycle assessment of mixed municipal solid waste management systemsa comparison of case studies in Finland and China

Cited by 37 publications

References 22 publications

Environmental Analysis of Waste-to-Energy—A Portuguese Case Study

Environmental Analysis of Waste-to-Energy—A Portuguese Case Study

Life Cycle Impact Assessment of Garbage-Classification Based Municipal Solid Waste Management Systems: A Comparative Case Study in China

Sustainability of Waste Management Systems: Energy Recovery

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