ARSENIC REMOVAL FROM DRINKING WATER USING THE COAGULATION/MICROFILTRATION PROCESS

CHWIRKA J. D. / COLVIN C. / GOMEZ J. D. / et al. - ARTICLE DE PERIODIQUE - 2004

Description of the coagulation/microfiltration process, examples of coagulant dose requirements, effect of addition of chlorine, pre-treatment to lower the pH of raw water (acid addition or carbon dioxide), optimisation of membrane flux pilot-scale testing results performed at several sites: effects of FeCl3 dose vs pH, mixing intensity and detention time, influence of phosphate in raw water. 2 full scale microfilters provided by 2 manufacturers: effect of pH, chemical cleaning by citric acid, flux of running, trensmembrane pressure.