We offer high quality Membrane Bioreactor used for industries for their sewage treatment plants , effluent treatment plants .The MBR process involves a suspended growth activated sludge system that utilizes microporous membranes for solid/liquid separation in lieu of secondary clarifiers. This very compact arrangement produces a MF/UF quality effluent suitable for reuse applications or as a high quality feed water source for Reverse Osmosis treatment. Indicative output quality of MF/UF systems include SS < 1mg/L, turbidity <0.2 NTU and up to 4 log removal of virus (depending on the membrane nominal pore size). In addition, it provides a barrier to certain chlorine resistant pathogens such as Cryptosporidium and Giardia.
Advantages of Membrane Bioreactor
Kindly note MBR only requires half the space of conventional STP , in conventional STP Retention time used to be 20 hours to 24 hours
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MBR plant generates highly stabilized sludge of low volume
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High quality treated water is generated from MBR plant
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Sludge bulking, sludge rising, etc problems associated with clarifier unit are eliminated
MBR Limitations
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MBR requires fine screening (1 mm OR LESS) - more expensive than standard waste water screening.
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MBR requires high MLSS recirculation rates - AS permeate is removed through the membranes , the already high conc of SS at the membrane Surface of MBR increases and fouling rates are compounded . This requires recirculating MLSS within the bioreactor and thus results in large amount of Energy Consumption.
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Low Peak Flow Tolerance – with the high membrane fouling environment constraining the flux , the MBR has very low peak flow tolerance , hence it requires large Equalization Tank Volume
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The HIGH MLSS concentration of MBR reduces oxygen transfer efficiency within the Bioreactor , resulting in higher energy requirement in order to aerate the bioreactor
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MEMBRANE COMPONENT COSTS CONTRIBUTE A VERY HIGH CAPITAL AND OPERATING COSTS
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Nutshell The main Disadvantages of MBR is the high initial cost and regular cleaning of membrane filters at least once in 48 hours
