预臭氧化强化常规工艺去除黄浦江原水中污染物  

Conventional Treatment Process Enhanced by Pre-ozonation for Removing Pollutants in Raw Water from Huangpu River

作　　者：李学艳[1] 马垚[1] 徐飞飞 黄勇[1] 高乃云[3] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011 [2]上海市水利工程设计研究院,上海200061 [3]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《中国给水排水》2013年第23期38-41,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51108291);苏州科技学院校基金资助项目(341011204);江苏省环境科学与工程重点实验室开放基金资助项目(ZD111025)

摘　　要：以上海某自来水厂设计规模为7 500 m3/d的臭氧/生物活性炭示范工程(预臭氧/高密度澄清池/砂滤/后臭氧/生物活性炭滤池)为研究背景,考察不同预臭氧投量下常规工艺对微污染黄浦江原水的处理效果。通过考察不同预臭氧投量下澄清池、砂滤工艺对浊度、DOC、COD Mn、UV254等指标的去除效果,以确定最优的预臭氧投量。结果表明,单独砂滤及澄清池对COD Mn、DOC及UV254基本没有去除效果,但预臭氧化工艺能强化常规工艺对这些指标的去除。预臭氧对原水中亚硝酸盐氮的去除效果较好,当水力负荷分别为2 000和6 000 m3/d,预臭氧投量为1.5 mg/L时,工艺出水浊度均低于0.1 NTU。Based on a 7 500 m^2/d demonstration project using pre-ozonation, high density clarifier, sand filter, post-ozonation and biological activated carbon filter at a waterworks in Shanghai, the effect of different pre-ozone doses on the conventional treatment processes of raw water from the Huangpu River was investigated. The turbidity, DOC, CODMn and UV2s4 of the effluent from the clarifier and the sand filters were evaluated to determine an optimal pre-ozone dose. Both the clarifier and the sand filter had no effect on the removal of DOC, CODMn and UV254, but the pre-ozonation could enhance the removal of these indexes in the conventional treatment processes. The nitrite in raw water was effectively removed by pre-ozonation. When the pre-ozone dose was 1.5 mg/L, the turbidity of the effluent was below 0.1 NTU at hydraulic loading rates of 2 000 m^3/d and 6 000 m^3/d.

关 键 词：预臭氧 生物活性炭 深度处理 黄浦江原水 

分 类 号：TU991.2[建筑科学—市政工程]