南方低浊高藻水的网格絮凝工艺优化  

Optimization of Grid Flocculation Process for Low-turbidity and High Algae-laden Water Treatment in the South

作　　者：崔福义[1] 徐勇鹏[1] 赫俊国[1] 汪义强[2] 张晓红[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]深圳市水务<集团>有限公司,广东深圳518031

出　　处：《中国给水排水》2004年第2期8-11,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划 (86 3)项目 (2 0 0 2AA6 0 1 1 2 0 )

摘　　要：南方水库水多呈低浊高藻特征 ,根据速度梯度理论设计的传统网格絮凝池对其处理时存在一定的局限性。依据微涡漩理论对传统网格絮凝池进行了改造 ,结果表明它能降低沉后水浊度 ,提高对CODMn和藻类的去除效率。等效粒径和分形维数的研究结果表明 ,改型池内形成的絮体粒径大且密实、沉降性好 ,此外改型池的水头损失和药耗也较低。Reservoir Water in the South is characterized by low turbidity and high algae content, and there is some limitation to the water treatment by using the conventional grid flocculation tank designed based on velocity gradient theory. The conventional flocculation tank was reconstructed according to the tiny vortex theory, and the result showed that the modified tank is able to reduce the turbidity of settled water and improve removal efficiency of COD _(Mn) and algae. By making research on equivalent size and fractal dimensions, it was found that the floc size formed in the modified tank is large and dense and has good settleability; furthermore the tank is low in head loss and chemical consumption.

关 键 词：低浊高藻水 改型网格絮凝池 微涡漩 等效粒径 分形维数 

分 类 号：TU991.2[建筑科学—市政工程]