Study on the PAC Hydrolysis Speciation Analysis (HSA) in Membrane Fouling Control

Abstract

Among various membrane separation technologies, ultrafiltration membrane (UF) and micro-filtration membrane (MF) are considered to be perfect choices to take the place of traditional processes in the micro-polluted water treatment The Al- Ferron method was used to research the Al speciation distribution and find out the control effects of polymeric metal salt coagulants on membrane fouling. Results showed that the effluent contained a small amount of Alc after filtration, which could be deduced that the membrane was effective to intercept Alb. Moreover, it could be discovered that the membrane flux recovery rate of acidic washing was better than that of neural water or alkaline washing. The study has been proved to be a very proper technique for effectively evaluating the effects of membrane fouling control and providing a new way for determining the optimal cleaning method by monitoring the reaction rate between the different AlT forms and Ferron reagent.