Evaluation of membrane bioreactor for advanced treatment of industrial wastewater and reverse osmosis pretreatment

The evaluation of a membrane bioreactor (mbr) for pretreatment of reverse osmosis (ro) in order to reuse andreclamation of industrial town wastewater treatment plant was investigated in this study. performance of mbreffluent through water quality in term of parameters such as chemical oxygen demand (cod), total suspendedsolids (tss), total nitrogen (tn) and total coliform (tc) were measured. also silt density index (sdi) was used asindicator for ro feed water. the results of this study demonstrated that mbr produce a high quality permeatewater. approximately 75%, 98%, 74% and 99.9% removal of cod, tss, tn and tc were recorded, respectively. alsosdi of the permeate effluent from membrane was below 3 for most of the times. it means that pilot yield a highquality treated effluent from the membrane module which can be used as ro feed water.