A Review on Biodegradation of Plastics with Organic Fraction of Municipal Solid Wastes by Anaerobic Co-digestion

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-02-24 DOI:10.1007/s11270-025-07799-1

Penaganti Praveen, Biswabandhu Chatterjee, Debabrata Mazumder

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引用次数: 0

Abstract

Improper plastic disposal results in biological magnification since the plastics accumulated in the landfills and in the ocean find their way into the food web – getting increasingly accumulated at the top of the Ecological Pyramid. The degradation of plastic waste can be achieved by chemical, thermal, photo, and biological processes. Anaerobic co-digestion (AcoD) can be applied to biodegrade plastic waste and the organic fraction of municipal solid waste (OFMSW) while ensuring increased process stability and biogas production. While the anaerobic digestion (AD) or anaerobic mono-digestion of only plastics with high carbon content (higher carbon-to-nitrogen ratio) is challenging, the co-digestion with lower carbon-to-nitrogen ratio organic wastes results in increased biodegradation and biogas production. Pretreatment of plastic waste can surely enhance biodegradability and biogas yield, but further investigation is required to determine the economic viability of various pretreatment techniques available. This review highlights the classification of plastics based on their biodegradability, microbial species responsible for biodegradation, and the changes in the properties of plastics during biodegradation under AD and AcoD. Further, the review delves into the crucial process governing factors that affect AcoD and provides current insights for plastic biodegradation using AcoD.

Graphical Abstract

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城市生活垃圾有机组分厌氧共消化降解塑料研究进展

不当的塑料处理导致生物放大，因为堆积在垃圾填埋场和海洋中的塑料找到了进入食物网的途径——越来越多地积聚在生态金字塔的顶端。塑料垃圾的降解可以通过化学、热、光和生物过程来实现。厌氧共消化（AcoD）可用于生物降解塑料废物和城市固体废物（OFMSW）的有机部分，同时确保提高工艺稳定性和沼气产量。虽然厌氧消化（AD）或厌氧单一消化仅具有高碳含量的塑料（较高的碳氮比）是具有挑战性的，但与低碳氮比的有机废物共消化导致生物降解和沼气产量增加。塑料废弃物的预处理无疑可以提高生物降解性和沼气产量，但需要进一步研究以确定各种可用的预处理技术的经济可行性。本文重点介绍了塑料的生物降解性分类、生物降解微生物种类以及塑料在AD和AcoD下生物降解过程中性能的变化。此外，本文还深入探讨了影响AcoD的关键过程控制因素，并提供了目前使用AcoD进行塑料生物降解的见解。图形抽象

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.