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Strategies and technologies for sustainable plastic waste treatment and recycling
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This review covers current and emerging methods for recycling and treating plastic waste to reduce environmental pollution. The authors emphasize that improperly managed plastics break down into microplastics that contaminate ecosystems, and they evaluate strategies including chemical recycling, biodegradation, and energy recovery as more sustainable alternatives to landfilling.
Discarded plastics in natural environments contribute significantly to “white pollution” due to their high persistence and potential for bioaccumulation. Improperly managed waste plastics further exacerbate this issue by fragmenting and decomposing into microplastic contaminants, posing emerging threats. Effective strategies for managing and recycling discarded plastics are therefore imperative to mitigate environmental pollution and associated ecological and health risks. This review comprehensively summarizes current technologies for removing waste plastics from the environment, discussing their mechanisms, feasibility, and limitations. Methods such as pyrolysis, photolysis, electrochemical catalysis, and enzymatic processes are evaluated. Furthermore, existing technologies for transforming waste plastics into carbon materials, valuable chemicals, and fuels are outlined. Finally, the review offers insights and prospects for advancing technical developments in waste plastic management within environmental contexts. • The review outlines methods for converting waste plastics into carbon materials, valuable chemicals, and fuels, showcasing innovative approaches to waste valorization. • Insights and prospects for technical developments in plastic management are provided, emphasizing the potential for innovative solutions to mitigate environmental pollution and associated risks. • The review presents a holistic perspective on tackling the plastic waste challenge, paving the way for sustainable environmental management practices.
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This review covers treatment technologies for managing post-consumer plastic waste and reducing its environmental impact. Researchers compared mechanical recycling, chemical recycling, and energy recovery methods, assessing their technical feasibility, cost, and environmental outcomes. The review concludes that a combination of approaches is needed and that improving collection and sorting infrastructure is a prerequisite for any effective solution.
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