GAC强化砂滤对再生水紫外线消毒的影响研究  

Study on the influence of reclaimed wastewater UV disinfection by GAC enhanced sand filtration

作　　者：张朋锋[1,2] 杨英杰[2] 张文超[2] 常江[2] 甘一萍[2] 白宇[2] 张亚维[3] 

机构地区：[1]哈尔滨工程大学航天与建筑工程学院,哈尔滨150001 [2]北京城市排水集团有限责任公司,北京100022 [3]北京科技大学土木与环境工程学院,北京100083

出　　处：《给水排水》2011年第2期43-46,共4页Water & Wastewater Engineering

摘　　要：考察了GAC强化砂滤池预处理对再生水消毒的强化效果及污水处理厂二级出水消毒紫外线剂量与灭活率的关系。结果表明,GAC强化砂滤池对浊度和色度的平均去除率分别为60%和26.5%,对粒径4μm以上颗粒物平均去除率为89.2%,紫外线对总大肠菌群和粪大肠菌群的灭活率分别提高24.5%、23.3%。当紫外线剂量达到13 mJ/cm2时,出水总大肠菌群低于100个/L。试验表明,在再生水消毒工艺中,GAC强化砂滤预处理可明显提高紫外线消毒效果。In this paper,the effects of GAC enhanced sand filter tank pretreatment process on reclaimed wastewater disinfection and relationship between UV dosage and inactivation ratio for wastewater treatment plant secondary effluent disinfection were studied.The results showed： the turbidity and color removal rates of GAC enhanced sand filter tank were 60% and 26.5% respectively;the removal rate of particles with diameter more than 4 μm was 89.2%;inactivation ratio of UV on total coliforms and fecal coliforms increased 24.5% and 23.3% respectively;when the UV dosage reached 13 mJ/cm2,the total coliforms were below 100 unit/L.It could be concluded： in the reclaimed wastewater disinfection process,GAC enhanced sand filtration pre-treatment could improve the UV disinfection effects obviously.

关 键 词：GAC强化砂滤池 紫外线剂量 浊度 颗粒物 总大肠菌群 粪大肠菌群 

分 类 号：TU991.25[建筑科学—市政工程]