饮用水中悬浮颗粒物对微生物聚集和消毒效果的影响

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Abstract Considering that the mechanism of disinfection-stressed protection effects of suspended particles on microbes remained unclear, this study investigated the chlorination-stressed protection effects of these particles on microbes in drinking water by analyzing microbial physiological characteristics and aggregation behaviors via a static experimental setup. The results showed that goethite dosage had a minor impact on the logarithmic inactivation rate on microbes in drinking water when the absence of chlorine. However, the presence of goethite stimulated microbial aggregation behaviors and the chlorine decay process, thus goethite playing a protective role when associating with chlorination stress, particularly at 0.5mg/L chlorine.

Key words： drinking water suspended particles chlorination microbes extracellular polymer substances aggregation

Received: 30 April 2021

PACS:

X703.5

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	Articles by authors
	ZHANG Xin-xin
	GU Zheng
	YU Chao
	CHEN Guo-wei
	LIU Li

Cite this article:

ZHANG Xin-xin,GU Zheng,YU Chao等. Effect of suspended particles in drinking water on microbial aggregation and disinfection[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(1): 76-82.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I1/76

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