A METHOD AND DEVICE OF MULTI-FUNCTIONAL HIGH EFFICIENCY DRINKING WATER TREATMENT USING OZONE FLOTATION COMBINED WITH GAC FILTER

摘要

The existing dissolved air flotation method is a method of mixing particulate matter, color or algae, etc. existing in the water with coagulant, making it in the form of a floc and then floating it to remove it. There is a limit to the removal of pathogenic microorganisms such as substances, disinfection by-products and Cryptosporidium and inorganic substances such as iron and manganese. For this purpose, a separate process for oxidation, disinfection and adsorption should be applied. Therefore, the present invention replaces the air used in the existing dissolved air flotation method with ozone and applies activated carbon filter paper 50 at the bottom of the flotation tank 20 to simultaneously perform oxidation and disinfection by ozone and filtration and adsorption using activated carbon filter paper. In this way, compact and efficient water treatment is possible in a process that enables the effects of coagulation, sedimentation, filtration, disinfection and ozone and activated carbon, which are existing water purification methods, at the same time.;Dissolved air flotation, ozone, granular activated carbon, microbubbles