Wastewater microfiltration apparatus with metal membrane combined ozonated water back-washing

摘要

PURPOSE: Provided is a device for micro-filtrating wastewater by using metal membrane combined ozonated water back-washing which is able to solid-liquid separate sewage and wastewater by using an ozone-resistant and relatively cheap metal membrane. CONSTITUTION: The device comprises a reaction tank (1) containing raw water flown in from the outside and providing a space for precipitating sludge, a filter membrane module (2) placed on the inside of the reaction tank and solid-liquid separating the raw water, an absorption pipe (5) installed on the upper part of the filter membrane module and provide a path for absorbing and discharging to the filtered water, an absorption pump (6) compulsorily absorbing the filtered water passed through the filter membrane module and keeping the inside of the filter membrane module vacuum to be able to perform the solid-liquid separation, an ozonated water spouting nozzle (21) mounted on the lower part of the filter membrane module and sprouting the ozonated water upwardly to wash the filter membrane module and an ozonated water injecting means (7) connected to the ozonated water sprouting nozzle and injecting the ozonated water to the ozonated water sprouting nozzle.