Low Pressure Membrane Technology for Treatment of Water Supply in Developing Countries
Keywords:
ceramic microfiltration, fouling impact of algal organic matter, coagulation as feed pre-treatment.Abstract
Algal bloom remains a pressing environmental issue due to toxin producing cyanobacteria and production of algal organic matter (AOM) in waterbodies. These conditions lead to deterioration in water quality and pose risk to public health upon direct use of contaminated water. Microfiltration, a low pressure membrane technology, is an effective water treatment system in removing algal organic matter and its components in contaminated water. However, upon prolonged use of membrane, its performance is reduced due to fouling. Coagulation as a feed pre-treatment step is employed in the study to test its ability to mitigate membrane fouling. This study showed that feed pre-treatment improved the performance of ceramic membrane in reducing the fouling potential caused by algal organic matter from stationary phase Chlorella sp. and Microcystis aeruginosa. Results have proven the efficiency of ceramic microfiltration coupled with coagulation as a water treatment technology for algal contaminated water.
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