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白色泄漏:生命周期评估方法,用于管理海上EPS垃圾的管理,这些垃圾来自洪水释放的水

Tu Xayachak¹, Nawshad Haque², Deborah Lau³

¹School of Engineering, RMIT University, VIC, 3001, Australia.

|July 5, 2023

概括

用d-limonene溶解膨胀聚乙烯 (EPS) 是用于清理海洋污染的最环保的处理方法. 与垃圾填埋或机械再加工相比,这种方法显著减少了环境影响.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
海洋生物学海洋生物学

背景情况:

扩展聚钢 (EPS) 造成的海洋污染是澳大利亚昆士兰州的一个重大环境问题.
最近的一次洪水在海岸线上分散了数百个含有EPS的水槽,加剧了生态损害.

研究的目的:

调查和比较EPS的不同寿命终止 (EoL) 处理和回收方法的环境性能.
为制定有效的EPS污染管理指南提供数据.

主要方法:

生命周期评估 (LCA) 框架应用于三个EOL方法:填埋场,现场使用热密集器进行机械再加工 (MR),以及使用d-limonene (DP) 进行现场溶解/沉.
蒙特卡洛分析用于评估结果的稳定性和可靠性.

主要成果:

使用d-烯的溶解/沉 (DP) 显示了最有利的环境性能.
DP的影响:612公斤的CO2eq (GWP),4.3公斤的SO2eq (TAP),184.7公斤的石油eq (FFD).
垃圾填埋的影响:700公斤的CO2eq (GWP),3.5公斤的SO2eq (TAP),282公斤的石油eq (FFD) 和3.77公斤的N eq (MEP). 机械再加工 (MR) 的影响最大,主要是由于运输.

结论:

用d-烯在现场溶解/沉是EPS最环保的EOL选择.
人员和重型机械的运输是EOL阶段对环境影响的主要贡献者.
建议进行进一步的研究,以解决模型的局限性,并探索未来的调查.

关键词:

在这种情况下,D-烯是D-limonene.扩展聚氨酸的扩展聚氨酸.生命周期评估生命周期评估海洋垃圾是海洋中的垃圾.塑料回收的回收利用方法

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