APPARATUS AND METHOD FOR TREATING RAINWATER BY USING MEMBRANE SEPARATION COMBINED WITH OZONE INJECTION PROCESS TO MAXIMIZE TREATMENT EFFICIENCY BY EMPLOYING MEMBRANE FOULING RESTRAINING METHOD SUCH AS INTERMITTENT OZONE TREATMENT

摘要

Purpose: in order to provide a device and a kind of method, for treating rainwater by using thin film separation combination ozone grouting method, wherein high film permeation rate, which is remained, by injecting there is an ozone gas of strong oxidizing power to enter a membrane module as a Membrane cleaning device, to prevent the dirt and formation in the inside of the sedimentary on the surface of film. Construction: the device includes: a screen (70a), is used to mainly remove suspended solid in rainwater (a); The oil separator (70b) that the rainwater wherein gone out is contained, individual contaminated water and sludge; Installation oil separator is flown in oil separator on the inside of the filtering of filter and clean not purified water and cleaning means; By the ozone that sprays and blister, an ozone contain air-jet device be mounted under filtering and cleaning means with clean ozone contain gas contain gas and provide blistering ozone contain gas to filtering and cleaning means outer surface on and enter filtering and cleaning means; One infiltration displacement device one end therein is connected to filtering and a top of cleaning means sucks and discharge infiltration water, passes through filtering and cleaning means; In the ozone generating-device (120) that the outside of oil separator is installed, air-jet device and infiltration displacement device that the gas that ozone accommodates is accommodated to ozone are selectively provided.