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Membrane Water Treatment
  Volume 6, Number 6, November 2015 , pages 489-499

Industrial wastewater treatment by using of membrane
Seyed Mohammad Reza Razavi, Taghi Miri, Abolfazl Barati, Mahboobeh Nazemian and Mohammad Sepasi

    In this work, treatment of real hypersaline refinery wastewater by hollow fiber membrane bioreactor coupled with reverse osmosis unit was studied. The ability of HF-MBR and RO developed in this work, was evaluated through examination of the effluent properties under various operating conditions including hydraulic retention time and flux. Arak refinery wastewater was employed as influent of the bioreactor which consists of an immersed ultrafiltation membrane. The HF-MBR/RO was run for 6 months. Average elimination performance of chemical oxygen demand, biological oxygen demand, total suspended solids, volatile suspended solids , total dissolved soild and turbidity were obtained 82%, 89%, 98%, 99%, 99% and 98% respectively. Highly removal performance of oily contaminant, TDS and the complete retention of suspends solids implies good potential of the HF-MBR/RO system for wastewater refinement.
Key Words
    Hollow Fiber Membrane Bioreactor (HF-MBR); refinery wastewater; wastewater treatment; BOD5; COD; RO
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran.

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