Integrated approach of waste analysis and life cycle assessment for the management of non-recyclable plastics in recycling shops

IF 6.1 Q2 ENGINEERING, ENVIRONMENTAL Cleaner Environmental Systems Pub Date : 2024-09-24 DOI:10.1016/j.cesys.2024.100229
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Abstract

The unbound usage of plastic products in modern society has brought convenience and poses significant environmental challenges. Recycling Shops (RS) are vital in mitigating plastic waste problems in urban waste management. During the recycling process, RS generates non-recyclable plastics that demand scientific solutions for its management. This study conducted material flow analysis (MFA) to estimate the yearly recycled plastic waste in the RSs of Khulna City. Subsequently, a life cycle assessment (LCA) was performed to explore the suitable management facilities for non-recyclable plastics. The results highlighted the contribution of the informal plastic recycling sector to the city's waste management system by recycling 6324 tons of plastic waste per year. Polypropylene (PP) and Polyethylene (PE) were the most abundant polymers among the recycling plastics in RS. The LCA results revealed that among the five considered cases, Open Burning showed the maximum impact on the environment while Sanitary Landfill exhibited the lowest environmental impact across eighteen impact categories. The sanitary landfilling of non-recyclable plastics was identified as an environmentally friendly approach for managing non-recyclable plastics. This study addressed the urgency for appropriately managing non-recyclable plastics to protect the human and environment from plastic pollution in Bangladesh including recommendations for improving current practices.

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采用废物分析和生命周期评估的综合方法管理回收商店中的不可回收塑料
在现代社会中,塑料产品的无限制使用在给人们带来便利的同时,也给环境带来了巨大的挑战。在城市废物管理中,回收店(RS)对缓解塑料废物问题至关重要。在回收过程中,RS 会产生不可回收的塑料,需要科学的管理解决方案。本研究进行了材料流分析(MFA),以估算库尔纳市 RS 每年回收的塑料垃圾。随后,进行了生命周期评估(LCA),以探索适合不可回收塑料的管理设施。结果表明,非正规塑料回收部门每年回收 6324 吨塑料废物,为该市的废物管理系统做出了贡献。在 RS 回收的塑料中,聚丙烯(PP)和聚乙烯(PE)是最多的聚合物。生命周期评估结果显示,在考虑的五种情况中,露天焚烧对环境的影响最大,而卫生填埋对环境的影响在十八种影响类别中最低。不可回收塑料的卫生填埋被认为是管理不可回收塑料的环保方法。本研究探讨了孟加拉国适当管理不可回收塑料以保护人类和环境免受塑料污染的紧迫性,包括改进当前做法的建议。
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来源期刊
Cleaner Environmental Systems
Cleaner Environmental Systems Environmental Science-Environmental Science (miscellaneous)
CiteScore
7.80
自引率
0.00%
发文量
32
审稿时长
52 days
期刊最新文献
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