Microcoagulation improved the performance of the UF–RO system treating the effluent from a coastal municipal wastewater treatment plant: a pilot-scale study

Abstract Microcoagulation has recently been considered as a promising pretreatment for an ultrafiltration (UF) process from numerous studies. To investigate the effects of microcoagulation on performance UF–reverse osmosis (RO) system treating wastewater with high and fluctuant salinity, different dosages coagulant (poly-aluminum chloride) were added prior to UF unit in pilot-scale UF–RO 10-week period operation. obviously improved contaminant removal cleaning efficiencies, including water backwash, chemical enhanced backwash place processes. Organic fouling was dominated during initial stage RO membrane fouling. The microbial communities samples foulant similar those seawater membranes plants. community that permeate concentrate. These results demonstrated could improve effluent salinity coastal municipal treatment plant.