在下水道系统中对微塑料的点源追踪. 找到罪祸首的方法
Lucian Iordachescu1, Rasmus Vest Nielsen1, Konstantinos Papacharalampos1
1Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark.
Water research
|May 9, 2024
概括
洗衣所造成的微塑料污染很大,工业洗衣所呈现的度最高. 聚纤维是废水中微塑料的主要贡献者.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 水处理 处理水的方法
背景情况:
- 微塑料 (MP) 研究经常优先考虑废水处理厂 (WWTP) 的清除技术而不是来源识别.
- 了解MP源对于有效的环境管理和污染控制至关重要.
研究的目的:
- 为了调查各种来源的废水中微塑料的存在,化学成分,大小和质量.
- 确定进入WWTP的微塑料的主要来源和类型.
- 评估微塑料纤维识别方法.
主要方法:
- 使用焦平面阵列微福里埃变换红外光谱 (FPA-μFTIR) 进行MP量化.
- 分析了来自工业洗衣设施,家庭污水和WWTP影响的废水样本.
- 使用后处理软件来比较面积比率和延长比率方法用于光纤识别.
主要成果:
- 工业洗衣废水的MP度最高 (6900计数L-1或716微克L-1).
- 国内污水和WWTP的流入量显示出可比的MP水平 (大约为1. 1500-1600 计数 L-1.1) 的时间.
- 聚纤维是占主导地位的MP类型,与织品洗有关.
结论:
- 洗衣活动,特别是织品洗,是废水中微塑料的重要来源.
- 家庭活动对废水系统中的微塑料负载作出了重大贡献.
- 准确的识别方法对于描述来自各种来源的微塑料污染至关重要.
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