Design of Sludge Water Treatment System with Combined Processes of Sedimentation-Air Floatation-Advanced Treatment
The recent design scale of a water treatment plant in Jilin Province is 2.5×105 m3/d,and its long-term design scale is 5×105 m3/d.The water treatment combined process of sedimentation-air floatation-deep treatment is adopted and combined flexibly with raw water quality.The system design of multi-mode operation sludge water treatment is introduced,including sludge collection tank,residue discharge tank,drain tank,back-flow tank,sludge tank with floating trough,concentration tank,supernatant collection tank,balance tank,dewatering room,wastewater adjusting tank.The sludge water treatment has the advantage of flexible operation,high water utilization rate,low cost of reagent and low back-flow shock loading.The clear supernatant of sand filter backwashing wastewater after static settling is reused,and sediment is discharged to sludge discharge tank to be treated.The reused mode of carbon adsorption backwashing wastewater is decided by water quality.The wastewater regulation tank and wastewater pipe is designed to solve the problem of no municipal sewage pipes.The total project cost of sludge water treatment is 79.00 million yuan.
air floatationsludge waterresidue discharge tankdrain tanksludge tank with floating trough
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