Study on hair dyeing wastewater treatment by the union process of Adsorption Coagulation and Potassium Permanganate Oxide

摘要

The amount of hair dye wastewater largest stage formed by oxidative hair dye in terms of quantity and quality, there is a serious pollution problem in the aquatic environment. Through analysis of the main component of hair dye to verify the use of activated carbon adsorption - Coagulation - potassium permanganate oxidation technology of wastewater treatment which is effective measures. According to different types of hair dye, about 80% of the market demand oxidative hair dye brown was selected to study. The results showed that the COD of 2427mg/L, the chromaticity of the hair 1000 times wastewater using 1300mg/L activated carbon adsorption treatment alone, the removal rates were 37.79%, 18.29%; in this condition and 140mg/L of mixed PAC condensate combined treatment, removal rates were 90.09%, 90.56%; potassium permanganate solution 70mg/L continues oxidation treatment, the removal rate reached 90.34%, 97.37%.