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Analysis of cost-benefit in life-cycle of plastic solid waste: combining waste flow analysis and life cycle cost as a decision support tool to the selection of optimum scenario

机译:塑料固体废物生命周期成本效益分析:将废物流量分析和生命周期成本与选择最佳场景的选择支持工具相结合

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摘要

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.
机译:由于其具有耐用性,灵活性和低重量,全球每年每年消耗数百万吨塑料。高消耗使塑料成为最重要的市政固体废物化合物之一,其数量近几十年增加。塑料固体废物被称为对环境的威胁,其各个方面的有效管理需要决策工具。本研究正在评估塑料固体废物管理的成本效益,通过发展经济模式,以及改变塑料固体废物管理地位的不同情景的定义。结果表明,学习城市每年生成8971吨塑料固体废物。通过5个鉴定的途径最终将塑料固体废物转移到回收或填埋场。 83%的再循环塑料固体废物是由于分离后途径,并且只有7.7%的总塑料固体废物从源分离途径再循环。情景的经济比较显示,随着分离后途径的聚合,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,源分离路线的比例每年将净收入提高875,000欧元,这是情景中最好的经济状况。使用生命周期成本方法,它受到尊重的经济模型,真正满足了当前塑料固体废物管理和替代情景的条件,因此可以作为决策工具采用。

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