Actual Cases of Engineering Design and Commissioning for Pesticide Wastewater Treatment
Due to a wide variety of pesticide formulations,their wastewater composition fluctuates greatly,making it difficult to achieve stable and standard discharge in wastewater treatment.Taking a leading enterprise's formulation pesticide wastewater treatment project as an example,this paper introduces the water quality characteristics,process flow,facility and equipment configuration,and commissioning and operation effects of its production wastewater.The aim is to provide experience for the selection of treatment process,engineering design and operation maintenance of pesticide wastewater.The treatment process of"process wastewater-demulsification coagulation unit-plate and frame full filtration-+low concentration wastewater-regulation unit-SBR sequencing batch bioreactor unit-ABR hydrolysis reaction unit-A/O biochemical MBR membrane reaction unit-sodium hypochlorite catalytic oxidation unit+chemical phosphorus removal sedimentation unit"is adopted,and the effluent water quality index is better than the secondary discharge standard requirements in the"Comprehensive Wastewater Discharge Standard"(GB 8978-1996).
pesticide formulation wastewaterchemically breaking emulsion and coagulatingcollection of production wastewater
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