Shandong Ruizhao Xiang professional production of sewage treatment facilities, slaughtering sewage treatment equipment, hospital sewage treatment equipment and other sewage chromaticity still difficult to compliance, for the removal of color, and sewage treatment factories, and taking into account the decrease of COD and ammonia nitrogen and total reduce phosphorus Huangpu District sewage treatment, and therefore set here coagulating sedimentation tank and dosing targeted agents. Sedimentation tank effluent into the pool disinfection, and final discharge.