MBR is ideal for the treatment of medium strength industrial wastewater, being the most efficient for removing the organic pollutants and nutrient loads. The UF membranes retain the biomass (MLSS) within the bioreactor, thus producing a superior and consistent quality effluent, free of solids, turbidity and pathogens.
Years of Experiences
In an effort to minimize the short and long-term environmental impact, industries across the globe are facing increasing challenges and costs related to wastewater management. As a result, most of the industrial facilities have built their own treatment plants, thus achieving regulatory compliance, avoiding the fees for sewer discharge, and reducing their water footprint by means of water reuse.
The MBR is essentially a high-efficient evolution of the conventional activated sludge process, where the clarifiers are replaced by the tubular UF modules. In this way, significant improvements are achieved: superior effluent quality, higher biodegradation rates, smaller footprint, less sludge production and reuse possibilities. All these features are essential for coping with the stringent discharge quality requirements and the economic benefits of water reuse faced by almost all the industrial sectors.
MBRs remove up to 99% of COD, compared to 90-95% in conventional activated sludge processes. The operation with higher MLSS concentration – even up to 30 g/L – results in minimum footprint requirements and decreased production of excess sludge. The filtrate produced by the membranes is free of solids (TSS < 1 mg/L) and turbidity (< 1 NTU), and presents SDI values lower than 3, optimum for further RO treatment if required.
Berghof Membranes specializes in external MBRs that are positioned outside the bioreactor and utilize crossflow velocity to keep the membranes working at optimal conditions. Your benefits:
Unlike the outside-in submerged membranes, our inside-out external tubular modules provide higher fluxes with less frequent cleanings and reduced maintenance operations. The cross-flow operation allows operating with higher MLSS and dealing with complex wastewaters, containing FOG, hardness or high levels of recalcitrant matter. The external filtration systems are quickly assembled and do not require complex civil works. The modules are easily accessible for inspection and maintenance, reducing system downtimes to a minimum. Finally, the enclosed filtration system is clean and operator-friendly, with neither odor nor exposure to the wastewater.
Many industrial facilities are facing the need for upgrading their existing treatment plants. There are a number of reasons pushing the conversion:
Under any of these circumstances, the conversion of the existing CASP or SBR processes into MBRs turns out as the most favourable solution, providing significant benefits at both technical and economical sides. By coupling the external tubular UF system to the existing biological reactor the wastewater treatment plant will provide a much better quality treated water, and the capacity of the plant shall be increased up to three times if required. The external MBR system has undoubted advantages for retrofit and conversion:
50 years of experience and more than 2.000 project references across the globe.
“Unique, customized solutions are the specialty of Berghof Membranes.”
With over 40 years of experience and more than 1500 project references across the globe, Berghof Membranes is the leading manufacturer of high quality tubular membranes.
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International Sales Office:
Agora 4, 8934 CJ Leeuwarden,
Phone : + 31 (0)58 8100 110