Carbon emissions under different domestic waste treatment modes induced by garbage classification: Case study in pilot communities in Shanghai, China

被引:164
作者
Chen, Sisi [1 ]
Huang, Jialiang [2 ]
Xiao, Tingting [1 ]
Gao, Jun [1 ]
Bai, Jianfeng [3 ]
Luo, Wei [4 ]
Dong, Bin [1 ]
机构
[1] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
[2] Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
[3] Shanghai Second Polytech Univ, WEEE Res Ctr, Shanghai 201209, Peoples R China
[4] Environm Protect Technol Co Ltd, Beijing Jinghuan Intelligent, Beijing 100101, Peoples R China
关键词
Garbage classification; Carbon emission; Domestic waste; Anaerobic digestion; Composting; Incineration; MUNICIPAL SOLID-WASTE; WATER TREATMENT; GENERATION; SLUDGE; MANAGEMENT; SCENARIOS; DISPOSAL; IMPACT;
D O I
10.1016/j.scitotenv.2020.137193
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The GHGs contributions (tally by carbon emissions) during treatment of domestic food waste and residual waste from pilot communities (contained 2365 families) in Shanghai, China, under different Modes induced by garbage classification were investigated. It was found that under the present condition of garbage classification in Shanghai, 51.8% of the food waste could be separated finally. With garbage classification, the load of landfill was saved by 17.3% (Mode 2) and 16.5% (Mode 3), the moisture of garbage for incineration was reduced by 13.6%, and the lower heating value (LHV) of garbage was increased by 16.2%. Applying the life-cycle assessment (LCA) methodology and Life Cycle Inventory (LCI) with material flows, net carbon emissions during the treatment of garbage were found to be in the following order: Mode 3 (1.60 x 10(-3) kg CE/kg waste) b Mode 2 (4.85 x 10(-3) kg CE/ kg waste) b Mode 1 (4.94 x 10(-3) kg CE/kg waste) b landfill (1.49 x 10(-2) kg CE/kg waste). Mode 2 and Mode 3 were replaceable patterns of Mode 1, and anaerobic digestion was the recommendable strategy to recover energy from food waste. Especially, there was no obvious benefit of increasing the separation proportion of food waste to 60% (or above) for reducing net carbon emissions in the following treatment processes. (c) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页数:12
相关论文
共 44 条
[1]  
[Anonymous], 2012, EUR J PHARM BIOPHARM
[2]  
[Anonymous], EPA530F009021
[3]  
[Anonymous], 1998, ENDOCRIN METAB CLIN
[4]  
[Anonymous], 2013, J CHROMATOGR B, DOI DOI 10.1016/J.JCHROMB.2013.09.024
[5]  
[Anonymous], 2016, J CHROMATOGR B, DOI DOI 10.1016/J.JCHROMB.2016.10.001
[6]  
[Anonymous], WATER PURIF TECHNOL
[7]  
[Anonymous], 2019, BIOMOLECULES
[8]  
[Anonymous], ENV POLLUT CONTROL
[9]  
[Anonymous], URBAN PROBL
[10]  
[Anonymous], [No title captured]