絮凝过程中的高密度微分场理论及其应用研究

Study on High Density Micro-vortex Field Theory and Application in the Process of Flocculation

首次提出强化絮凝过程的高密度微分场理论，运用该理论设计了微分旋流絮凝池，并对其进行了生产性试验；此外还分析了传统絮凝池和微分旋流絮凝池中的微分场特性。结果表明，与目前水厂运行的絮凝池相比，在原水浊度为60～320NTU时，经8min的絮凝、15min的沉淀后，微分旋流絮凝反应池可使浊度降至2NTU以下，絮凝时间减小了近50％或更多，说明该絮凝池具有混凝速度快、絮凝效果好的优势。

A high density micro-vortex field theory of strengthening the flocculation process was presented for the first time. Based on this theory, a micro-vortex flocculation tank was designed for conducting a full scale experiment on its production. Moreover, the characteristics of the traditional flocculation tank and the introduced micro-vortex flocculation tank were analyzed in detail. The results show that the micro-vortex flocculation tank can decrease the turbidity to below 2 NTU when the raw water turbidity is 60-320 NTU, the flocculation time is 8 minutes and the sedimentation time is 15 minutes, which means that the flocculation time has reduced by more than 50% compared with the current flocculation tank operated in the water plant. It is concluded that the micro-vortex tank has the advantage of quick and effective flocculation.