Advanced Drinking Water Treatment Using Ozone Resistant Membrane

Abstract

On advanced drinking water treatment ， including unit processes of ozonation ， ozone resistant me 皿 brane 丘ltration and granular activated carbon ( GAC ) tower treatment ， pollutant removal perfbr 皿 ances of unit processes and relationships between some operational conditions and membrane filtration flux were exa1 皿 ined ， Frem the experimental results ， it became obvious that it was necessary to 皿 aintain residual ozone concentration of O 、 2 to 1． O mg 〆 L in the 丘ltrate from the membrane module ill order to mailltain higher membrane filtration flux， With ozone dQsage of 3 nlg 〆 L by an eject ' )r and with operation mode of dead ・ end filtration ， membrane filtration flux of more than 5 m31m21day