在有机废物流中导航per-和polyfluoroalkyl物质:循环经济回收利用的来源,挑战和影响 - - 一个小概述
1Unit of Environmental Engineering, Department for Infrastructure, University of Innsbruck, Innsbruck, Austria.
概括
和多醇基物质 (PFAS) 污染废物流,通过无效的处理和回收利用而持续存在. 焚烧是唯一可靠的降解方法,需要采取监管措施,以实现更安全的废物管理.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 化学污染 化学污染
背景情况:
- 和多醇基物质 (PFAS) 是各种废物流中发现的持续性环境污染物.
- 传统的废物处理方法,包括生物处理,在很大程度上无法有效地去除PFAS.
- 污染PFAS对废物管理系统和公共卫生构成重大挑战.
研究的目的:
- 为了确定生物废物流中的PFAS的存在和来源.
- 评估PFAS污染对废物处理过程和回收产品的影响.
- 突出现有的数据缺口和PFAS测量方法的局限性.
主要方法:
- 对报告在废物流中检测PFAS的研究的文献综述.
- 分析不同废物处理技术在PFAS清除方面的有效性.
- 识别有关生物废物和与食品接触材料 (FCM) 中 PFAS 的知识差距.
主要成果:
- 大多数生物废物处理方法无法降解PFAS.
- 焚烧被认为是PFAS降解的唯一有效方法.
- 聚乙酸在堆肥和生物固体等循环有机产品中存在,可能污染农田.
- 关于生物废物中PFAS存在的数据有限,尽管FCM是重要的来源.
结论:
- 目前的废物管理和回收实践不足以解决PFAS污染问题.
- 需要采取紧急的监管行动,包括限制FCM等高接触产品中的PFAS.
- 开发封闭循环回收系统和用于检测PFAS的标准化分析方法至关重要.
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