An Example of the Renovation of Sludge Treatment System in a WWTP
The engineering design of the reconstruction project of sludge treatment system of a sewage treatment plant in Jiaozuo City and the operation status after the reconstruction was introduced.This project passed through the transformation of the original belt-type concentration and dehydration integrated machine,the original sludge dewatering system was transformed into a two-stage sludge concentration system of"gravity thickening+belt concentration".As the pretreatment section of the newly added plate and frame filter press system,it saved investment,and improved sludge dewatering efficiency.Since the renovation of the sludge treatment system was completed and put into operation,the operation has been stable and reliable,and the moisture content of the dewatered sludge is lower than 60%,the treated sludge is transported to a local fertilizer company for land utilization,realize the reduction,harmlessness and resource treatment of sludge.
sludge treatment transformationgravity thickeningmechanical thickeningplate and frame filter pressland utilization
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