Millions of tons of plastic are consumed annually in the world due to its significant characteristics such as durability, flexibility, and low weight. High consumption has made plastic one of the most important municipal solid waste compounds, the quantity of which has increased in recent decades. Plastic solid wastes are known as a threat to the environment, and its efficient management in various aspects such as cost–benefit requires decision-making tools. This study was assessing the cost–benefit of plastic solid waste management by development of an economic model, and definition of different scenarios to change plastic solid waste management status. The results showed that 8971 tons of plastic solid waste were generated annually in the studied city. The plastic solid wastes were finally transferred to either recycling or landfilling site through 5 identified routes. 83 percent of the total recycled plastic solid waste was due to post-separation routes, and only 7.7 percent of the total plastic solid waste was recycled from the source separation route. The economic comparison of scenarios showed that with the aggregation of post-separation routes, the net revenue of plastic solid waste management increases by 334,000 euro per year while increasing the public participation and the ratio of source separation route raises net revenue by 875,000 euro per year, which was the best economic condition among the scenarios. Using life cycle cost method and it’s respected developed economic model truly satisfied the conditions of both, the current plastic solid waste management and the alternative scenarios, and hence can be adopted as a tool for decision-making.

中文翻译：

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塑料固体废物生命周期成本效益分析：结合废物流分析和生命周期成本作为选择最佳方案的决策支持工具

由于塑料具有耐用性、柔韧性和重量轻等显着特点，全世界每年消耗数百万吨塑料。高消耗使塑料成为最重要的城市固体废物化合物之一，其数量在近几十年来有所增加。塑料固体废物被称为对环境的威胁，其在成本效益等各个方面的有效管理需要决策工具。本研究通过开发经济模型和定义改变塑料固体废物管理状态的不同情景来评估塑料固体废物管理的成本效益。结果表明，研究城市每年产生8971吨塑料固体废物。塑料固体废物最终通过 5 条确定的路线转移到回收或填埋场。83%的回收塑料固体废物来自后分离路线，只有7.7%的塑料固体废物从源头分离路线回收。情景经济对比表明，随着分离后路线的聚合，塑料固体废物管理的净收入每年增加334,000欧元，同时增加公众参与，源头分离路线的比例每年增加875,000欧元的净收入，这是情景中最好的经济状况。采用生命周期成本法及其推崇的发达经济模型真正满足了两者的条件，