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Effect of microplastic on anaerobic digestion of wasted activated sludge

文献类型：期刊论文

作者Li, Lu2; Geng, Shixiong1,2; Li, Zhouyang2; Song, Kang2
刊名CHEMOSPHERE
出版日期2020-05-01
卷号247页码:8
ISSN号0045-6535
关键词Microplastics Waste activated sludge Anaerobic digestion Methane production Mathematical modelling
DOI10.1016/j.chemosphere.2020.125874
通讯作者Song, Kang(sk@ihb.ac.cn)
英文摘要Over 90% of microplastics that enter wastewater treatment plants end in the wasted activated sludge. The effect of microplastic abundance on the activated sludge anaerobic digestion has been rarely reported. This study investigated the methane production performance during anaerobic digestion with different abundance of microplastic doses (0, 1,000, 3,000, 6,000, 10,000, 30,000, 60,000, 100,000 and 200,000 polyester particle/kg activated sludge). The methane production was reduced to 88.53 +/- 0.5%, 90.09 +/- 1.2%, 89.95 +/- 4.7%, 95.08 +/- 0.5%, 90.29 +/- 0.5%, 93.16 +/- 0.8%, 92.92 +/- 1.3%, and 92.72 +/- 0.6% as compared with control after digestion for 59 days. The methane production of all conditions was fitted with the logarithm model (R-2 > 0.95) and one-substrate model (R-2 > 0.99). The predicted and actual methane production values of digestion for 59 days had high correlation in all conditions with R2 > 0.95. The analysis based on the biochemical methane potential test model indicated that the methane production potential (B-0) and hydrolysis coefficient (k) decreased at nearly all tested conditions. The reactor digestate with microplastics retained higher organic matter and nutrient concentration and had slightly lower dewaterability than the control. The inhibition of methane production potential could be attributed to the incomplete digestion with the existence of microplastics. The microbial community showed no significant difference with and without microplastics. (C) 2020 Elsevier Ltd. All rights reserved.
WOS关键词WATER TREATMENT PLANTS ; SEWAGE-SLUDGE ; METHANE PRODUCTION ; FREE AMMONIA ; INHIBITION ; FERMENTATION ; PERFORMANCE ; PARTICLES ; POLLUTION ; EFFLUENT
资助项目National Natural Science Foundation of China[41877344] ; Water Pollution Control and Treatment, National Science and Technology Major Project[2018ZX07208001] ; China Postdoctoral Science Foundation[2019M652738] ; 100 Talents Program of Chinese Academy of Sciences[Y82Z08-1-401] ; 100 Talents Program of Chinese Academy of Sciences[Y75Z01-1-401]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000527924400064
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; Water Pollution Control and Treatment, National Science and Technology Major Project ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences
源URL[http://ir.ihb.ac.cn/handle/342005/36419]  
专题水生生物研究所_水环境工程研究中心_期刊论文
通讯作者Song, Kang
作者单位1.Anhui Jianzhu Univ, Sch Mat Sci & Chem Engn, Hefei 230022, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式
GB/T 7714		 Li, Lu,Geng, Shixiong,Li, Zhouyang,et al. Effect of microplastic on anaerobic digestion of wasted activated sludge[J]. CHEMOSPHERE,2020,247:8.
APA Li, Lu,Geng, Shixiong,Li, Zhouyang,&Song, Kang.(2020).Effect of microplastic on anaerobic digestion of wasted activated sludge.CHEMOSPHERE,247,8.
MLA Li, Lu,et al."Effect of microplastic on anaerobic digestion of wasted activated sludge".CHEMOSPHERE 247(2020):8.

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来源：水生生物研究所

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