摘要
采用常规处理-活性炭组合工艺与常规处理-臭氧活性炭组合工艺对高藻期的天津引滦水处理进行中试研究。两种组合工艺对预氯化杀藻后的微污染原水的CODMn平均去除率分别为80%和70%,其中活性炭单元对预氯化和常规工艺引起的消毒副产物三氯甲烷的平均去除率分别为95%和94%。组合工艺中,活性炭是主要的有机物处理单元,而臭氧氧化可有效降低水中微量有机物的种类。试验表明,当臭氧活性炭的生物降解作用不显著时,常规处理-臭氧活性炭组合工艺处理效果不优于常规处理-活性炭组合工艺。
GAC and O3/GAC combined with conventional process were used in algae-bloom raw water from Luanhe River in Tianjin and the average removal rate of CODcr was 80 % and 70 % in result. The average removal rate of chloroform which caused by prechlorination and onventional techinics was 95 % and 94 % in GAC filters, respectively for GAC process and OJGAC process. In two combined processes, GAC was organic processing unit mainly, the kinds of organic matters were decreased by ozone effectively. However, if the biodegradation of O3/GAC was not significantly. It seemed that the removal efficiencies of GAC and O3/GAC were similarly.
出处
《净水技术》
CAS
2009年第3期14-17,31,共5页
Water Purification Technology
基金
天津市科技计划项目(023109211)
关键词
活性炭
臭氧
微污染
饮用水
activated carbon ozonation micro-polluted water drinking water
