北欧国家污水污泥中的环境污染物令人担忧
Olli Leino1, Lauri Äystö1, Päivi Fjäder1
1Finnish Environment Institute. Latokartanonkaari 11, Helsinki, 00790, Finland.
Environmental pollution (Barking, Essex : 1987)
|June 5, 2025
概括
污水污泥监测揭示了有害有机污染物如PFAS的数据缺口. 热解是最有效的去除方法,但为了环境保护,需要改进法规和研究设计.
科学领域:
- 环境化学环境化学
- 环境科学 环境科学
- 废水处理 废水处理
背景情况:
- 污水污泥含有许多有害的有机污染物,包括Per-和多基物质 (PFAS),药品,个人护理产品,荷尔蒙和阻燃剂.
- 关于污染物度在污水泥中的数据,特别是个人护理产品和阻燃剂的数据,在北欧国家很少,数据的可用性差异很大.
- 目前欧盟关于污水泥中的危险物质的立法已经过时,国家法规差异很大,阻碍了基于科学的决策.
研究的目的:
- 收集和评估北欧污水污泥中23种主要有机污染物的可用度数据.
- 通过无氧消化,堆肥和热解处理方法审查选定污染物的去除效率.
- 确定监测方面的挑战,数据缺口和影响污泥管理和环境保护的监管不一致性.
主要方法:
- 汇编了来自北欧国家的23种环境污染物的现有污水污泥度数据.
- 系统审查通过无氧消化,堆肥和热解处理的污染物去除效率.
- 分析导致删除效率和数据可用性变化的因素.
主要成果:
- 对于个人护理产品和阻燃剂,发现了显著的数据缺口,数据可用性在各国之间存在很大差异.
- 热解证明了研究污染物的最高一般去除效率.
- 和多醇基物质 (PFAS),某些抗生素和雌激素被确定为污泥中最持久的污染物.
结论:
- 一致的研究设计对于清除污染物效率的透明比较至关重要.
- 过时的立法和监管变化阻碍了对污泥利用和环境安全的知情决策.
- 有效监测污染物污水污泥对于评估污泥化肥相关风险和确保在处理过程中有效去除污染物至关重要.
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