Comparison of Performance of Conventional Membrane Bioreactor with Dynamic Membrane Bioreactor

Abstract

The purpose of this study is about comparison of non-woven and 0.45 µm pore size real membrane placed in one aerobic tank and under same conditions. Comparison has been made between dynamic membrane bioreactors (DMBR) and membrane bioreactor (MBR), which have been employed in a widespread manner, to develop a convenient solution of high membrane cost handicap. Both membrane types operated under same aerobic conditions such as; volume, LMH and SADm. In addition, they have been fed with synthetic municipal wastewater and operated periodically to hinder membrane fouling. At the end of approximate one-month adaptation time course, bioreactors, which have reached stable conditions, have been operated to gather the data throughout 60 days. COD removal rates and turbidity results have been compared and non-woven dynamic membrane results have shown similar results to real membrane in terms of efficiency. Furthermore, dynamic membrane has exposed air back wash and pressure changes examined. While average COD removal is determined 93% for non-woven dynamic membrane and 95% for 0.45 µm pore size real membrane, turbidity values haveobtained1,5 NTU and 0,7 NTU for non-woven and 0.45 µm real membrane, respectively.

Keywords

• Dynamic membrane,membrane bioreactors,non-woven,0.45 µm membrane

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