基于MnO2的电容系统通过破坏细胞膜来增强细菌的臭氧失活
Xiyuan Zheng1, Tao Zhong1, Huinan Zhao2
1School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
Water research
|April 24, 2024
概括
容量消毒预处理通过改善O3扩散到微生物中来增强臭氧 (O3) 氧化. 这种新的方法减少了臭氧剂量和消毒副产品,以有效地消毒初级水.
科学领域:
- 环境科学与工程环境科学与工程
- 水处理技术水处理技术
- 微生物学 微生物学
背景情况:
- 臭氧 (O3) 消毒受到低水溶性和消毒副产品 (DBP) 形成的限制.
- 现有的消毒方法需要优化初级水处理的效率和安全性.
研究的目的:
- 研究电容消毒作为预处理,以提高臭氧氧化的效率.
- 评估一种用于电容消毒的新型二氧化电极.
- 评估使用组合工艺减少臭氧剂量和DBP形成.
主要方法:
- 采用类似兰布坦的空心球体结构的二氧化作为电极用于电容消毒.
- 应用电压通过电相互作用吸引和杀死负电荷的微生物.
- 分析了电容预处理和臭氧氧化对微生物无活化的协同效应.
主要成果:
- 电容预处理增加了微生物细胞的透性和反应性氧物种的爆发,增强了臭氧扩散.
- 综合电容-O3工艺与单个处理相比,表现优越.
- 观察到臭氧剂量降低和DBP形成,以及更广泛的失活谱.
结论:
- 电容-O3系统有效地克服了传统臭氧消毒的局限性.
- 这种综合方法为高效和更安全的初级水消毒提供了有前途的解决方案.
- 新型电极设计有助于提高电荷密度和消毒效率.
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