织废水中的新兴污染物:以表面活性剂为重点的生态毒理学评估
Vanessa Silva Granadeiro Garcia1, Flávio Kiyoshi Tominaga2, Jorge Marcos Rosa3
1Instituto de Pesquisas Energéticas E Nucleares, Centro de Tecnologia das Radiações, IPEN/CNEN, São Paulo, Brazil. vanessagranadeiro@gmail.com.
Environmental science and pollution research international
|March 22, 2024
概括
织品染色表面活性剂对水生生物构成重大风险,非离子类型比离子类更有毒. 表面活性剂的混合物可以表现出协同作用或对抗作用,强调需要仔细的废水管理.
科学领域:
- 环境毒理学环境毒理学
- 生态毒理学 生态毒理学
- 化学风险评估 化学风险评估 化学风险评估
背景情况:
- 织品染色过程中使用各种化学物质,包括表面活性剂,这些化学物质可能会损害水生生态系统.
- 已知表面活性剂会对水生生物产生不利的生物学影响.
研究的目的:
- 评估五种表面活性剂 (离子和非离子) 和织染料中使用的辅助产品的急性毒性.
- 评估二元表面活性剂混合物中含有多基硫酸盐和两个非离子表面活性剂的毒性.
- 调查对水生生物体Vibrio fischeri (细菌) 和Daphnia similis (虫) 的影响.
主要方法:
- 使用Vibrio fischeri和Daphnia simsimilis进行急性毒性测试.
- 评估单个表面活性剂和二元混合物的毒性.
- 分析毒理学数据以确定有效度 (EC50).
主要成果:
- 非离子表面活性剂对两种测试生物体的毒性都高于离子表面活性剂.
- 非离子表面活性剂的毒性值 (EC50) 在1.3 mg/L至12.5 mg/L之间.
- 二元表面活性剂混合物具有高度毒性,对于Vibrio fischeri,EC50值低至1.0 mg/L.
结论:
- 织废水中的表面活性物质可以相互作用,从而对水生生物产生协同或对抗作用.
- 增加度是预测混合物毒性的最合适模型.
- 生态毒理学数据对于管理危险污染物和减少废水中的有毒负载至关重要.
关键词:
达夫尼亚类似的植物维布里奥·菲舍里 (Vibrio fischeri) 是一个鱼.有急性毒性的急性毒性.无离子表面活性剂是一种无离子表面活性剂非离子表面活性剂是一种非离子表面活性剂.织废水废水是如何处理的更多相关视频
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