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从废弃活性污泥中有效地去除西普罗夫洛克萨,通过电激活过氧化硫酸盐

Zonglin Li¹, Junsen Wang¹, Bomin Fu^1,2

¹College of Environmental Science and Engineering, Tongji University, Shanghai, China.

Water environment research : a research publication of the Water Environment Federation

|February 3, 2025

概括

电气激活的过氧硫酸盐有效地从废水污泥中去除西普洛素. 这种方法还可以改善污泥脱水,稳定重金属,降低过物的毒性,为污泥处理提供了一个有前途的解决方案.

科学领域:

环境科学环境科学
环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

废物活性污泥 (WAS) 积累了诸如西普洛素 (CIP) 这样的抗生素.
不当的WAS管理可以将CIP释放到环境中.
需要有效的技术来从污泥中去除CIP.

研究的目的:

通过使用电活化过氧硫酸盐 (E/PMS) 来研究从WAS中去除CIP.
通过响应表面方法 (RSM) 来优化CIP降解的E/PMS条件.
评估E/PMS对污泥特性和重金属漏的影响.

主要方法:

响应表面方法 (RSM) 用于优化E/PMS条件.
对CIP去除的最佳条件的实验验证.
对参与CIP降解的基性物种 (SO4•−和HO•) 的分析.
使用副产品分析和DFT计算确定CIP降解途径.

主要成果:

在最佳条件下 (250 mg/g DS PMS, 23 V) 在10分钟内达到93.8%的CIP去除.
E/PMS主要利用硫酸盐基 (SO4•−) 进行CIP降解.
该过程促进了污泥的分解,脱水和重金属稳定 (As,Cr).
降低了污泥过物的毒性和重金属的漏率.

结论:

电子/PMS是一种高效的技术,可以从WAS中移除CIP.
E/PMS工艺提供了多种好处,包括污泥改善和重金属稳定.
E/PMS 显示出对抗生素控制和污泥无害性的显著潜力.

关键词:

这就是西普罗夫洛克萨辛 (Ciprofloxacin).排水是为了排水.电解是一种电解.过氧单硫酸盐的使用废弃物活性污泥废弃物活性污泥废弃物

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Bioremediation

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