微污染水源水的强化絮凝处理  

Enhanced flocculation treatment of slightly polluted raw water

作　　者：汪义强[1] 赫俊国[2] 张金松[1] 于德强[3] 

机构地区：[1]深圳市水务(集团)有限公司,深圳518031 [2]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [3]北京市市政工程设计研究总院,北京100045

出　　处：《给水排水》2004年第10期1-4,共4页Water & Wastewater Engineering

基　　金：国家高技术研究发展计划(863)项目(2002AA601120)

摘　　要：利用微涡旋控制理论对南方某水厂传统絮凝网格进行了强化絮凝改造。运行结果表明,基于对剪切力与粘性力控制的强化絮凝网格处理微污染水源水具有一定优势:絮凝能耗小,出水矾花密实(分形系数大),矾花粒径大,对应的沉后水浊度降低0.1～0.3 NTU,沉后水、砂滤水藻类和有机物的去除率分别增加2％～5％。The conventional grid at a waterworks in south China was reconstructed by enhanced flocculation based on the micro-vortex control theory. The results show that flocculation-enhanced grid improves the control of shear and viscosity forces, so it has some advantages to treat slightly polluted raw water compared with the conventional one. The energy demands for flocculation decrease, the formed flocs become denser (means fractal dimension is larger) and floc size grows larger. The turbidity of the settled water goes down for 0.1-0. 3 NTU and the algae and organic substances removals of the settled water and filtrated water increase by 2% - 5%.

关 键 词：微污染水源水 絮凝处理 去除率 砂滤 矾花 出水 有机物 密实 水浊度 水厂 

分 类 号：TU991[建筑科学—市政工程] X703[环境科学与工程—环境工程]