Revisiting Microplastics in Landfill Leachate: Unnoticed Tiny Microplastics and Their Fate in Treatment Works.

landfill leachate mass membrane process microplastics sludge dewatering tiny size

Journal

Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072

Informations de publication

Date de publication:
15 Feb 2021
Historique:
received: 24 10 2020
revised: 20 12 2020
accepted: 22 12 2020
pubmed: 3 1 2021
medline: 29 1 2021
entrez: 2 1 2021
Statut: ppublish

Résumé

Due to the environmental risks caused by microplastics, understanding the sources and characteristics of microplastics and cutting off their routes into the environment are crucial. However, so far, studies on microplastics in the landfill leachate system (a major pathway of microplastics into the environment) are still limited, especially for tiny particles <50 µm that might have higher risks to the environment. This study investigated the microplastics in landfill leachate and in leachate treatment works, with a size detection limit down to 10 µm. The results showed that the microplastics particle and mass concentrations in the untreated leachate were 235.4 ± 17.1 item/L and 11.4 ± 0.8 µg/L, respectively, with tiny particles (<50 µm) accounting for over 50%. Overall, 27 polymeric materials were detected in leachate samples, with polyethylene and polypropylene being the most abundant in the untreated leachate. The neutral buoyancy of microplastics (average density: 0.94 g/cm

Identifiants

pubmed: 33387953
pii: S0043-1354(20)31317-8
doi: 10.1016/j.watres.2020.116784
pii:
doi:

Substances chimiques

Microplastics 0
Plastics 0
Sewage 0
Water Pollutants, Chemical 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

116784

Informations de copyright

Copyright © 2020. Published by Elsevier Ltd.

Déclaration de conflit d'intérêts

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Auteurs

Jing Sun (J)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China.

Zhuo-Ran Zhu (ZR)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China.

Wei-Hua Li (WH)

Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Re-use, School of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei, P.R. China. Electronic address: liweihua9@126.com.

Xiaofang Yan (X)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China.

Li-Kun Wang (LK)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China.

Lu Zhang (L)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China.

Jianbin Jin (J)

Suzhou Huanhao Environmental Engineering and Equipment Co., Ltd, Suzhou, 215000, P.R China.

Xiaohu Dai (X)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China.

Bing-Jie Ni (BJ)

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, P.R. China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China. Electronic address: bjni@tongji.edu.cn.

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Classifications MeSH