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对赣南某微污染水源水进行强化混凝处理的水力条件优化试验。考察了混合搅拌时间、强度,絮凝搅拌时间、强度4个影响因素对混凝处理效果影响,并确定最佳操作参数。结果表明,先以260 r/min混合搅拌2 min,再以80 r/min絮凝搅拌25 min时,去除效果最好,沉淀后的水浊度为0.88 NTU,浊度去除率为98.63%,COD Mn的去除率为49.83%。对水力条件进行动力学研究和分析,表明分子间存在速度梯度G值。
Hydrodynamic Optimization Experiment of Strengthening and Coagulation Treatment of Some Micro - polluted Source Water in South. The effect of four influencing factors such as mixing time, strength, flocculation mixing time and intensity on coagulation treatment was investigated and the best operating parameters were determined. The results showed that the best removal efficiency was obtained by mixing at 260 r / min for 2 min and then flocculation at 80 r / min for 25 min. The turbidity after sedimentation was 0.88 NTU, and the turbidity removal rate was 98.63%. COD The removal rate of Mn was 49.83%. Kinetic study and analysis of hydraulic conditions show that there is a velocity gradient G between molecules.