摘要
本研究以上海市某水厂臭氧活性炭深度处理工艺为研究对象,研究活性炭滤池微生物泄漏特征,并通过生产性试验优化臭氧和活性炭工艺防控微生物泄漏。优化前活性炭滤池出水中细菌、总大肠菌群和异养菌均有不同程度的泄漏,对应总数分别比进水时增加了8倍、7倍和21倍;将臭氧投加量控制在0.8 mg·L^(-1)以上,炭滤池反冲洗周期缩短至3 d,同时气冲和水冲时间减少至5 min+5 min,对于控制活性炭滤池微生物泄漏有较好的效果。
In this study,the advanced treatment process of ozone and activated carbon in a drinking water treatment plant in Shanghai was taken as the research object to study the characteristics of microbial leakage after granular activated carbon(GAC)treatment,and optimize the ozone and activated carbon treatment to prevent and control the microbial leakage.Before optimization,the total bacteria,coliform and heterotrophic bacteria in the effluent of the GAC filter had different degrees of leakage.The concentrations of total bacteria,coliform and heterotrophic bacteria increased by 8,7,and 21 times,respectively,compared to the influent.Moreover,controlling the ozone dosages above 0.8 mg·L^(-1),reducing the operation cycles to 3 d and shortening the Air and water flushing time to 5 min+5 min were effective methods to control microbial leakage.
作者
陆劲蓉
窦茵
李玲
钱云坤
施毅君
马嘉欣
安东
LU Jinrong;DOU Yin;LI Ling;QIAN Yunkun;SHI Yijun;MA Jiaxin;AN Dong(Shanghai Chengtou Water(Group)Co.,Ltd.,Shanghai 200002,China;Department of Environmental Science and Engineering,Shanghai 200438,China)
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
2024年第4期538-544,共7页
Journal of Fudan University：Natural Science
基金
国家自然科学基金(22076026,21777031,21577024)。
关键词
深度处理
臭氧活性炭
微生物泄漏
生产性试验
运行周期
反冲洗方式
advanced water treatment
ozone and activated carbon filter
microbial leakage
full-scale test
operation cycle
backwash mode
