Treatment of Wastewater from Textile-dyeing Industry by the way of "Hydrolysis Acidification-Biological Contact Oxidation"

Hydrolysis acidification-biological contact oxidation process is applied to treat textile-dyeing wastewater,This process is proved to be one of the new water treatment processes.The performance is stable,and its operation cost and used field area is less than that of conventional treatment process.Besides,due to the food chains of the biofilm attached on the carrier,there is no sludge settled in final setting tank.This process is proved to be effective for organic pollutant removal,and the effluent quality can steadily meet the requirement of national integrated wastewater discharge standards grade 1.