Coke oven wastewater treatment equipment, coke oven wastewater treatment method

摘要

An object of the invention is to reduce COD content and total phosphorus concentration in treating water in activated sludge treatment of coke oven discharge water. A coke oven discharge water treatment device provided by the invention comprises an aeration tank for carrying out biological treatment on the coke oven discharge water by microorganisms in activated sludge; a film separation unit for carrying out solid-liquid separation treatment on the treated water after biological treatment in the aeration tank; and a COD content removing unit for removing COD content in the permeation water permeating the separation film in the film separation unit.