混凝控制指标下涡漩运动对混凝影响的研究

Study on the effect of eddy motion of flow on coagulation under rational coagulative control index

以往复隔板絮凝池的改造为例,对最佳水力条件下混凝控制指标的合理选用进行了讨论,在此基础上对池中水流涡漩运动进行研究,得出了适宜的速度梯度G值,有利于形成更多更小的微涡漩,可使颗粒有效碰撞次数增加,有效地提高了混凝效果.

Ascertaining the coagulative control index and clarifying the effect of eddy motion of flow theory are worth to pay attention in coagulation dynamics. How to select rational G and Gt was discussed under the optimum hydraulic condition, and on this basis, the eddy motion of flow at the corner of reciprocating baffled flocculation tank was studied. It can be seen that the rational coagulative control index is favorable to form even more and smaller infinitesimal eddy, and the ef- fective collision is enhanced, as a result coagulative effect is improved apparently.