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Pakistan Journal of Biological Sciences
Year: 2007  |  Volume: 10  |  Issue: 17  |  Page No.: 2905 - 2909

The Treatment of Wastewater Containing Crude Oil with Aerated Submerged Fixed-Film Reactor

H. Izanloo, A. Mesdaghinia, R. Nabizadeh, K. Naddafi, S. Nasseri, A.M. Mahv and S. Nazmara    

Abstract: An aerated submerged fixed-film (ASFF) bioreactor was developed to treat an artificial wastewater based on crude oil. Bee-Cell 2000 was used as support media having porosity of 87% and a specific surface area of 650 m2 m-3. The system was able to achieve 70.87-93.12% removal efficiencies of Chemical Oxygen Demand (COD) in the organic loading rate range of 1.310 to 15.797 g COD m-2 day-1. Data gained exhibited that the effluent COD concentration ranged between 68.68 and 292.60 mg L-1 at organic loadings experienced. Therefore, an ASFF process showed that it was feasible to treat high oily wastewater in order to meet the discharge standards.

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