Project Name: cleaning wastewater treatment before iron spraying Project Description: metal parts, iron parts, furniture metal manufacturing industry, after surface treatment - fuel injection (environmental protection waste gas VOC, waste water treatment) Process flow: wastewater collection + air flotation + primary sedimentation + hydrolytic acidification + contact oxidation + secondary sedimentation + sand filtration carbon filtration + ultrafiltration unit Processing capacity: 4m3 / h (concentrated solution outsourced) recycling rate: 75%