对灰色水污染物的处理技术进行全面审查:重点是表面活性剂
Yenifer González1, Valentina Carrillo1, Gloria Gómez1
1Engineering & Environmental Biotechnology Group (GIBA-UDEC), Environmental Sciences Faculty & EULA-CHILE Center, Universidad de Concepción, Concepción, 4030000, Chile; Water Research Center for Agriculture and Mining (CRHIAM), ANID CRHIAM Center, Victoria 1295, Concepción, Chile.
Journal of environmental management
|August 12, 2025
概括
表面活性物是灰色水的主要污染物,各种处理技术显示出高清除效率. 需要对表面活性剂毒性和转化产品进行进一步的研究,以有效地重用灰色水.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 污染物分析 污染物分析
背景情况:
- 表面活性物是灰色水 (GW) 中的主要污染物,对重复使用提出了挑战.
- 目前的研究缺乏关于最佳表面活性剂去除技术的共识.
- 在GW中普遍存在的无离子表面活性剂具有显著的毒性 (LC50:0.027-92 mg/L).
研究的目的:
- 综合审查灰色水的特性,表面活性剂的特性,毒性和处理技术.
- 分析现有的文献,并确定表面活性剂去除和毒性评估的研究缺口.
- 评估各种灰色水处理方法的有效性和局限性,以消除表面活性物.
主要方法:
- 灰色水研究的图书统计分析,重点是表面活性剂去除研究.
- 对表面活性剂特性,毒性数据和处理效率的文献综述.
- 对灰色水再利用和相关处理技术的案例研究的分析.
主要成果:
- 表面活性剂在69%的GW研究中存在;物理化学治疗占主导地位 (13.5%).
- 通过物理化学,生物和先进的处理,可以实现22-99%的离子表面活性剂去除.
- 低成本的替代品显示出高表面活性剂去除率 (高达98%),但毒性数据很少.
结论:
- 有效的表面活性剂去除技术存在,但成本限制了先进的系统.
- 进一步的研究对于解决表面活性剂的毒性,转化产品以及与其他污染物的协同效应至关重要.
- 开发具有成本效益和低影响力的解决方案是广泛的灰色水再利用的关键.
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