水厂沉淀池改造方法与应用分析

针对传统沉淀工艺在水厂运行中存在的问题,通过总结沉淀池改造成功案例,得出改造方案.完善进水区以降低进水流速,提高布水均匀性;通过延长排泥车行程等方式改造排泥系统以解决跑矾现象;针对不同的水质问题,可考虑平流-斜管组合池、浮沉池、水平管沉淀技术等来提高水处理效果.通过进水口、排泥系统以及沉淀池型3方面改造可有效提高沉...

Reconstruction Methods and Application Analysis of Sedimentation Tank in Water Treatment Plant

Aiming at the problems existing in the operation of the traditional sedimentation process in the water treatment plant,the specific reconstruction scheme is proposed based on the analysis of successful cases about sedimentation tank reconstruction.The inlet zone is improved to reduce the inlet velocity and enhance the uniformity of water distribution.By extending the track of the sludge discharger,modify the sludge discharge system to solve the phenomenon about upward floating of alum particle.For different water quality problems,horizontal-flow inclined-tube sedimentation tank,floatation sedimentation tank and horizontal tube sedimentation technology can be considered to improve the water treatment effect.The improvement of inlet,sludge discharge system and sedimentation tank type can effectively enhance the stability of inlet flow,solve the problem of non-smooth sludge discharge and strengthen the adaptability of low temperature turbidity and algae-laden water.In the future,the reconstruction of sedimentation tank should be mainly carried out in three aspects:inlet,sludge discharge system and sedimentation tank type,and the efficient precipitation technology from abroad should be used for reference to improve the treatment effect of raw water.