RECYCLING APPARATUS FOR RINSING WASTEWATER FOR ELECTROPAINTING

摘要

PROBLEM TO BE SOLVED: To provide a recycling apparatus for rinsing wastewater for electropainting, capable of reducing the occurrence of sludge through physical treatment without using a coagulant or other chemicals.SOLUTION: The apparatus for recycling rinsing wastewater for electropainting according to the present invention, includes a pre-filtration unit, a primary treated-water tank, a micro filtration unit, a secondary treated-water tank, an ultrafiltration unit, an active carbon filtration unit, a final treated-water tank, an ultrasonic sterilizing unit, etc. Accordingly, the occurrence of sludge can be reduced through physical treatment without using a coagulant or other chemicals. The apparatus also can reduce the installation area, as well as expenses associated with purchasing a coagulant, purchasing a disinfectant, and treating sludge. The apparatus is operated automatically, so that maintenance work is facilitated. Corrosion of filtration units can be suppressed by the elimination of the use of a chlorine disinfectant, and the filtration continuation time can be increased by delaying the deterioration of the filtration units due to fouling of the filtration units.SELECTED DRAWING: Figure 1