Comparative study of different sewage sludge incineration treatments based on environmental and economic life cycle assessment

Incineration is one of the most widely used treatments in the field of sewage sludge disposal. However, the choice of sewage sludge incineration process is still controversial. In this study, the comparative life cycle assessment of sewage sludge incineration processes, including the mono-incinerati...

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Publié dans:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. - 1991. - 42(2024), 5 vom: 17. Mai, Seite 418-429
Auteur principal: Zhang, Xiaoyong (Auteur)
Autres auteurs: Chen, Xiaoping, Xiao, Jun, Peng, Xiaowei, Wang, Jianguo, Ma, Jiliang, Liu, Daoyin, Liang, Cai
Format: Article en ligne
Langue:English
Publié: 2024
Accès à la collection:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
Sujets:Journal Article Comparative Study Sewage sludge carbon footprint co-incineration comparative study incineration life cycle assessment Sewage Coal Ash plus... Solid Waste Coal
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520 |a Incineration is one of the most widely used treatments in the field of sewage sludge disposal. However, the choice of sewage sludge incineration process is still controversial. In this study, the comparative life cycle assessment of sewage sludge incineration processes, including the mono-incineration, co-incineration in coal-fired power plants and co-incineration in municipal solid waste (MSW) incineration plants, was carried out from the perspective of environment, carbon footprint and economy. The environmental assessment results show that terrestrial ecotoxicity, freshwater ecotoxicity, marine ecotoxicity, human carcinogenic toxicity and human non-carcinogenic toxicity are the most significant environmental impacts. And the environmental performance of co-incineration in coal-fired power plants is the best. Moreover, the environmental impact is most sensitive to the dehydrant, electricity and fly ash chelating agent. Co-incineration in MSW incineration plants has the lowest carbon emissions, with only 70.50% and 82% of the carbon emissions from mono-incineration and co-incineration in coal-fired power plants, respectively. Furthermore, sewage sludge mono-incineration has the highest disposal costs because of the higher depreciation and solid waste disposal costs. The comprehensive evaluation results reveal that the optimization should focus on the selection of dehydrant and fly ash chelating agent, as well as the improvement of the equipment efficiency 
650 4 |a Journal Article 
650 4 |a Comparative Study 
650 4 |a Sewage sludge 
650 4 |a carbon footprint 
650 4 |a co-incineration 
650 4 |a comparative study 
650 4 |a incineration 
650 4 |a life cycle assessment 
650 7 |a Sewage  |2 NLM 
650 7 |a Coal Ash  |2 NLM 
650 7 |a Solid Waste  |2 NLM 
650 7 |a Coal  |2 NLM 
700 1 |a Chen, Xiaoping  |e verfasserin  |4 aut 
700 1 |a Xiao, Jun  |e verfasserin  |4 aut 
700 1 |a Peng, Xiaowei  |e verfasserin  |4 aut 
700 1 |a Wang, Jianguo  |e verfasserin  |4 aut 
700 1 |a Ma, Jiliang  |e verfasserin  |4 aut 
700 1 |a Liu, Daoyin  |e verfasserin  |4 aut 
700 1 |a Liang, Cai  |e verfasserin  |4 aut 
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