RESEARCH PROGRESS ON EFFECTS OF MICROPLASTICS ON EXCESS SLUDGE AND THEIR DEGRADATION PATHWAYS

PU Yitao; YANG Ruyue; XU Yirong; KE Shuizhou; WANG Xiaodong; GAO Jingsi; XIAO Kang

doi:10.13205/j.hjgc.202402006

Volume 42 Issue 2

Feb. 2024

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PU Yitao, YANG Ruyue, XU Yirong, KE Shuizhou, WANG Xiaodong, GAO Jingsi, XIAO Kang. RESEARCH PROGRESS ON EFFECTS OF MICROPLASTICS ON EXCESS SLUDGE AND THEIR DEGRADATION PATHWAYS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(2): 48-56. doi: 10.13205/j.hjgc.202402006

Citation:

PU Yitao, YANG Ruyue, XU Yirong, KE Shuizhou, WANG Xiaodong, GAO Jingsi, XIAO Kang. RESEARCH PROGRESS ON EFFECTS OF MICROPLASTICS ON EXCESS SLUDGE AND THEIR DEGRADATION PATHWAYS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(2): 48-56. doi: 10.13205/j.hjgc.202402006

Citation:

PU Yitao, YANG Ruyue, XU Yirong, KE Shuizhou, WANG Xiaodong, GAO Jingsi, XIAO Kang. RESEARCH PROGRESS ON EFFECTS OF MICROPLASTICS ON EXCESS SLUDGE AND THEIR DEGRADATION PATHWAYS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(2): 48-56. doi: 10.13205/j.hjgc.202402006

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RESEARCH PROGRESS ON EFFECTS OF MICROPLASTICS ON EXCESS SLUDGE AND THEIR DEGRADATION PATHWAYS

doi: 10.13205/j.hjgc.202402006

PU Yitao^1,2,3,
YANG Ruyue^4,5,
XU Yirong^2,6,
KE Shuizhou³,
WANG Xiaodong⁴,
GAO Jingsi^1
,,
XIAO Kang^{2,6
,}

1. College of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, China;
2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China;
3. College of Civil Engineering, Hunan University, Changsha 410082, China;
4. College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 101408, China;
5. Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, China;
6. Beijing Yanshan Earth Critical Zone National Research Station, Beijing 101408, China

Received Date: 2023-01-15
Available Online: 2024-04-28

Abstract

Abstract

The residual microplastics(MPs) in excess sludge potentially harm the environment and ecosystems. Therefore, it is necessary to study the migration, fate, and degradation mechanism of MPs in excess sludge, and develop effective degradation methods to deal with the MPs problem. The occurrence state of MPs in excess sludge is first introduced and the effects of MPs on the properties of excess sludge and sludge treatment are analyzed. The effects are closely related to the type, concentration, and particle size of MPs. Secondly, the degradation pathways of MPs in wastewater treatment plants are reviewed, which can be divided into non-biodegradable and biodegradable pathways. Non-biodegradable pathways include pyrolysis and hydrothermal treatment. Biodegradable pathways include sludge composting, anaerobic digestion, and biofilm method. The degradation efficiency and mechanism of MPs are discussed and the characteristics and application prospects of each pathway are analyzed. Among them, hydrothermal treatment and sludge composting have high MPs degradation efficiency, good economic viability, and wide applicability. Currently, the research on the degradation of MPs in excess sludge is still in the preliminary stage, and further research is needed to tackle the MPs problem.
- microplastics,
- excess sludge,
- influence,
- degradation pathways

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References(80)

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