Testing the Applicability of Submerged Hollow Fiber Membrane Bioreactor (MBR) Technology for Municipal Wastewater Treatment in Iraq


Operation of a one module hollow fiber submerged type MBR system wastested in this work. The system was operated at fixed permeate flowrate of 12 l/hr.The hydraulic retention time of the aeration tank was about 8.3 hr. The mixedliquor suspended solid (MLSS) concentration was maintained in the range 5000-5500 mg/l. The results show the workability of this system under Iraqi conditionswithout any difficulties. About 85% chemical oxygen demand (COD) removalwas achieved. The value of turbidity is well below 0.61 NTU throughout theoperation time.