Project Name: Hardware pretreatment wastewater + electrophoresis wastewater + painting wastewater

Item description: painting after pretreatment

Process flow: painting wastewater pretreatment + electrophoresis wastewater pretreatment - collecting wastewater + Fenton + primary sedimentation + primary biochemistry + secondary biochemistry + sedimentation + reclaimed water reuse system +mvr evaporator (zero discharge)

Sewage treatment capacity: 3m3 / h; Mvr:0.5t/ hour

Electrophoresis wastewater: cod:83250mg/l; NH3-N 717.5mh/l

Paint spraying wastewater: cod:6450mg/l; NH3-N 40.8mh/l

The "zero" sewage discharge technology is a comprehensive application of physical, chemical and biochemical processes such as membrane separation, concentration, crystallization and drying to concentrate the solid impurities in the wastewater to a very high concentration. Most of the water can be recycled, and a small amount of water with solid waste can be absorbed by solid waste through evaporation / crystallization, evaporation / drying and other processes, as product recovery or solid hazardous waste transfer, without sewage discharged from the plant system.

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