The Effect of Washing and Air Scouring on The Performance of Immersed Membrane Microfiltration

Abstract The quality of raw water in Surabaya is decreasing, and conventional treatment units are no longer efficient treating to become drinking water. Microfiltration membranes applied sedimentation can produce better results on limited land that uses a small number chemicals. material will be deposited the membrane’s surface throughout filtration process. deposition these materials cause fouling, leading decrease membrane productivity. This study involved detailed investigation into washing method air scouring implication microfiltration process understand most technique increase Washing was done manually with gentle scrubbing backwashing time variation for 20 minutes 10 minutes. Air Scouring pressure variations 0,3 bar 0,6 bar. showed flux affected by method. Permeate also found variation. analyses this turbidity, TSS, micro-plastics, E-Coli, organic substances.