Microplastics in landfill leachate: Sources, detection, occurrence, and removal.

Autor:	Kabir MS; Department of Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA., Wang H; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China., Luster-Teasley S; Civil, Architectural and Environmental Engineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA., Zhang L; Department of Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA., Zhao R; Civil, Architectural and Environmental Engineering Department, North Carolina Agricultural and Technical State University, Greensboro, NC, 27411, USA.
Jazyk:	angličtina
Zdroj:	Environmental science and ecotechnology [Environ Sci Ecotechnol] 2023 Feb 16; Vol. 16, pp. 100256. Date of Electronic Publication: 2023 Feb 16 (Print Publication: 2023).
DOI:	10.1016/j.ese.2023.100256
Abstrakt:	Due to the accumulation of an enormous amount of plastic waste from municipal and industrial sources in landfills, landfill leachate is becoming a significant reservoir of microplastics. The release of microplastics from landfill leachate into the environment can have undesirable effects on humans and biota. This study provides the state of the science regarding the source, detection, occurrence, and remediation of microplastics in landfill leachate based on a comprehensive review of the scientific literature, mostly in the recent decade. Solid waste and wastewater treatment residue are the primary sources of microplastics in landfill leachate. Microplastic concentration in raw and treated landfill leachate varied between 0-382 and 0-2.7 items L -1 . Microplastics in raw landfill leachate are largely attributable to local plastic waste production and solid waste management practices. Polyethylene, polystyrene, and polypropylene are the most prevalent microplastic polymers in landfill leachate. Even though the colors of microplastics are primarily determined by their parent plastic waste, the predominance of light-colored microplastics in landfill leachate indicates long-term degradation. The identified morphologies of microplastics in leachate from all published sources contain fiber and fragments the most. Depending on the treatment method, leachate treatment processes can achieve microplastic removal rates between 3% and 100%. The review also provides unique perspectives on microplastics in landfill leachate in terms of remediation, final disposal, fate and transport among engineering systems, and source reduction, etc. The landfill-wastewater treatment plant loop and bioreactor landfills present unique difficulties and opportunities for managing microplastics induced by landfill leachate. Competing Interests: 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. (© 2023 The Authors.)
Databáze:	MEDLINE
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