Masses and size distributions of mechanically fragmented microplastics from LDPE and EPS under simulated landfill conditions

Lu, Xuhong; He, Hongping; Wang, Yao; Guo, Yuliang; Fei, Xunchang

doi:10.1016/j.jhazmat.2022.130542

Cited by 24 publications

(1 citation statement)

References 61 publications

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“…The smaller food, paper, wood, and even polymer particles facilitate biodegradation due to their higher specific surface areas as compared to the original waste [77]. The generation of microplastics and microfibers in SWDS received great attention recently [78,79], since they are highly mobile and act as vectors for adsorbing and transporting other elements, compounds, and pathogens [80,81]. In general, purely physical transformations do not alter waste elemental composition.…”

Section: Physicochemical Transformationmentioning

confidence: 99%

Transformation, Transport, and Storage of Major Elements in Municipal Solid Waste Disposal Sites

Wang,

Zhou,

Zhang

et al. 2024

Preprint

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The predominant management approach for municipal solid waste (MSW) remains disposal, given significant increases in generation and disposal rates of MSW in recent decades. In addition to the well-documented carbon emissions from disposal sites, these sites accumulate numerous elements, the masses of which are substantial globally yet inadequately quantified. The unique combinations of waste constituents, elements, diverse environments, and confined spaces in disposal sites create distinct biogeochemical conditions, setting them apart from any other infrastructure or geological feature on Earth. This review first presents a global summary of the cumulative masses and disposal rates of MSW constituents and associated elements. The five dominant transformation and transport processes influencing disposed elements are examined: biochemical degradation, physicochemical transformation, gas migration, leachate migration, and solid spillage. The magnitudes and rates of the processes corresponding to major disposed elements, including carbon, nitrogen, sulfur, chlorine, and several metals, are systematically summarized. We examine and quantify the potential environmental impacts and health risks associated with element transformation and transport. We also explore the existing knowledge and techniques for resource recovery and site remediation of disposal sites. The distilled compilation of measurements and insights herein serves as a valuable primer for researchers, practitioners, and decision-makers involved in MSW management.

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