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PVC Dechlorination for Facilitating Plastic Chemical Recycling: A Systematic Literature Review of Technical Advances, Modeling and Assessment
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This study analyzed microplastic pollution in coral reef ecosystems of a tropical island group. Microplastics were found in water, sediments, and within coral tissues, indicating that these sensitive marine ecosystems face significant plastic contamination stress.
Polyvinyl chloride (PVC) resins are widely used in modern society due to their acid and alkali resistance, low cost, and strong insulation properties. However, the high chlorine (Cl) content in PVC poses significant challenges for its recycling. This study reviews the treatment processes, model construction, and economic and environmental assessments to construct a methodological framework for the sustainable development of emerging dechlorination technologies. In terms of treatment processes, this study summarizes three types of processes, pretreatment, simultaneous dechlorination during chemical recycling, product purification, and emphasizes the necessity of dechlorination treatment from a systematic perspective. Additionally, the construction of models for dechlorination processes is investigated from the laboratory to the industrial production system to macro-scale material, in order to evaluate the potential inventory data and material metabolism behaviors. This review also summarized the methodology framework of Techno-Economic Analysis (TEA) and Life Cycle Assessment (LCA), which can be applied for evaluation of the economic and environmental performance of the dechlorination processes. Overall, this review provides readers with a comprehensive perspective on the state-of-the-art for PVC dechlorination technologies, meanwhile offering sustainable guidance for future research and industrial applications of chemical recycling of PVC waste.
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Recent advances in polyvinyl chloride (PVC) recycling
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"This review examines conventional and emerging recycling technologies for polyvinyl chloride (PVC), including mechanical, thermal, chemical, plasma-assisted, and solvent-based methods, with particular attention to the European regulatory context shaped by the Circular Economy Action Plan. Researchers identify persistent challenges such as low recycling yields and high energy consumption while highlighting the significant greenhouse gas savings and economic benefits that effective PVC recycling can deliver."
Upvaluing chlorinated plastic wastes
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This review explores strategies for upcycling chlorinated plastic waste such as polyvinyl chloride, which poses particular recycling challenges due to its chlorine content. Researchers highlight emerging green methods for converting these materials into valuable chemical products, addressing a critical bottleneck in plastic waste management.
Recent Studies and Technologies in the Separation of Polyvinyl Chloride for Resources Recycling: A Systematic Review
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This systematic review summarizes research on technologies for separating polyvinyl chloride (PVC) from other plastics for recycling. Better PVC recycling is important for reducing microplastic pollution because PVC is one of the most common and problematic plastics, and when it breaks down it can release harmful chemical additives into the environment and our bodies.
Evaluation of life cycle in the process of production and management of PVC waste by LCA method and prediction of toxicity (TEQ) effect of dioxins using Artificial Neural Network method and nonlinear regression
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This study assessed the full life cycle environmental impacts of PVC plastic production and disposal, using artificial intelligence to predict dioxin toxicity from incineration. PVC is a major source of hazardous plastic waste, and better end-of-life management could reduce toxic emissions and microplastic generation.
Beyond the Landfill: A critical review of techniques for End-of-Life Polyvinyl chloride (PVC) valorization
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PVC (the plastic used in pipes, medical devices, and cables) is hard to recycle because of its chemical makeup, and when it mixes with other plastics in waste streams, it can mess up the recycling process for everything else. This review pulls together existing research on ways to reuse or safely dispose of PVC waste, concluding that better collection and sorting systems, paired with the right recycling technology, are needed to keep it out of landfills and incinerators. Getting this right matters for reducing the toxic byproducts and plastic pollution that can end up in our environment, water, and eventually our bodies.
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