生物活性炭与臭氧/活性炭工艺控制DBPs前体物比较  

Comparative Analysis on Control of Disinfection By-products Precursors by Biological Activated Carbon Process and Ozone/Activated Carbon Process

作　　者：何嘉莉 张晓娜 陈丽珠 刘清华 

机构地区：[1]东莞市东江水务有限公司,广东东莞523000

出　　处：《中国给水排水》2016年第9期50-52,57,共4页China Water & Wastewater

摘　　要：通过比较生物活性炭工艺和臭氧/活性炭工艺去除消毒副产物前体物的性能,分析了经两种工艺处理后生成消毒副产物的风险。结果表明:生物活性炭工艺和臭氧/活性炭工艺对TOC和UV254均有去除效果,但臭氧/活性炭工艺远优于生物活性炭工艺。生物活性炭工艺对三卤甲烷前体物的去除率可达25%以上,而臭氧/活性炭工艺的去除效果更为显著,去除率在40%以上,且以活性炭滤池去除为主。经加氯消毒后,臭氧/活性炭工艺出水三氯甲烷和三氯乙醛的生成量比生物活性炭工艺都有所降低。因此,臭氧/活性炭工艺相比于生物活性炭工艺更能有效降低生成消毒副产物的风险。By comparing the removal of disinfection by-products precursors by biological activated carbon process and ozone/activated carbon process, the risk of disinfection by-products after treatment by the two processes was analyzed. The results showed that both biological activated carbon process and ozone/activated carbon process could effectively remove TOC and UV254, but the ozone/activated carbon process was far superior to the biological activated carbon process. The removal efficiency of THMFP precursors by the biological activated carbon process was more than 25%, and the ozone/activated carbon process was more remarkable, with the removal rate of above 40%. Furthermore, the THMFP precursors were mainly removed by activated carbon filter. After chlorine disinfection, the concentrations of chloroform and chloral hydrate in the water treated by the ozone/activated carbon process were lower than those by the biological activated carbon process. Therefore, the ozone/activated carbon process is more effective than the biological activated carbon process to reduce the risk of disinfection by-products.

关 键 词：生物活性炭 臭氧/活性炭 消毒副产物 

分 类 号：TU991.2[建筑科学—市政工程]