APPARATUS OF WATER PURIFICATION BY MEMBRANE

摘要

A waterworks filtering device is provided to prevent frequent filter clogging by removing a material such as microorganism and cloudiness less than 100 micrometer, and to reduce maintenance expenses of a filter. A waterworks filtering device includes the followings: an original water supply pipe(10); a UF or an MF membrane(20); a backwashing part(30); a first solenoid valve(40) installed on a branch part of the UF or the MF membrane and the backwashing part; a second solenoid valve(50) supplying water in which cloudiness is removed by the UF or the MF membrane to a water tank; a drain pipe(60); a third solenoid valve(70); and a control box controlling operation of the valves and an electrolysis cell(33).