Performance assessment of a pilot-size vacuum rotation membrane bioreactor treating urban wastewaterReport as inadecuate

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Applied Water Science

, Volume 1, Issue 3–4, pp 103–110

First Online: 22 September 2011Received: 17 March 2011Accepted: 23 August 2011


This study investigated the suitability and performance of a pilot-scale membrane bioreactor MBR. Huber vacuum rotation membrane VRM 20-36 bioreactor was installed at the Sharjah sewage treatment plant STP in the United Arab Emirate for 12 months. The submerged membranes were flat sheets with a pore size of 0.038 μm. The VRM bioreactor provided a final effluent of very high quality. The average reduction on parameters such as COD was from 620 to 3 mg-l, BOD from 239 to 3 mg-l, Ammonia from 37 to 2 mg-l, turbidity from 225NTU to less than 3NTU, and total suspended solids from 304 mg-l to virtually no suspended solids. The rotating mechanism of the membrane panels permitted the entire membrane surface to receive the same intensive degree of air scouring, which lead to a longer duration. The MBR process holds a promising future because of its smaller footprints in contrast to conventional systems, superior effluent quality, and high loading rate capacity.

KeywordsBiological Bioreactor Membrane Wastewater List of symbolsAPHAAmerican public health association

BODBiochemical oxygen demand

CODChemical oxygen demand

DAFDissolved air flotation

MBRMembrane bioreactor

MLSSMixed liquor suspended solids

MLVSSMixed liquor volatile suspended solids

OLROrganic loading rate

SMDDSharjah municipality drainage department

SRTSolids retention time

STPSewage treatment plant

TKNTotal Kjeldahl nitrogen

TMPTrans-membrane pressure

TSSTotal suspended solids

VRMVacuum rotation membrane

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Author: Raafat Alnaizy - Ahmad Aidan - Haonan Luo


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