排泄物有机物依赖来源的组成和反应性调节消毒副产品的形成和细胞毒性
Liang Zeng1, Penghui Du2, Guoping Chen1
1State Key Laboratory of Soil Pollution Control and Safety, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
电子废水中的废物有机物 (EfOM) 的芳香度较低,产生较少的有毒消毒副产品 (DBPs). 了解EfOM来源对于安全的废水再利用和DBP控制至关重要.
科学领域:
- 环境化学环境化学
- 水的质量 水的质量
- 废水处理 废水处理
背景情况:
- 废水有机物 (EfOM) 是处理废水中消毒副产品 (DBPs) 的主要前体.
- EfOM的不同来源 (工业与市政) 表明不同的组成和反应性,影响DBP的形成和毒性.
- 目前对特定来源EfOM如何影响DBP配置文件和废水再利用中的风险的理解是有限的.
研究的目的:
- 研究来自不同工业和市政来源的EfOM的分子特性.
- 为了确定EfOM成分对DBP形成和化后毒性的影响.
- 为了确定EfOM的源特异性分子标记.
主要方法:
- 从17个废水源 (电子,制药,食品,医院,市政) 使用光谱学和FT-ICRMS的EfOM的表征.
- 化实验,以评估DBP的产量.
- 生物测试以评估DBP混合物的细胞毒性.
主要成果:
- 电子废水EfOM显示了较低的芳香度和较高的脂质/蛋白质类化合物,产生较少的三甲和乙二,具有较低的细胞毒性.
- 制药,食品和医院废水EfOM表现出与市政污水EfOM相似的芳香度,尺寸和DBP配置文件.
- 对于每个废水源来说,确定了独特的分子公式,作为潜在的标记物.
结论:
- EfOM的成分显著影响DBP的形成和毒性,电子废水的风险较低.
- 埃福姆的反应性与天然有机物不同,需要进行不同的风险评估.
- 对于有效的废水再利用管理和DBP控制策略来说,对EfOM的源特异性表征至关重要.
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