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Veolia launches Memthane.

Memthane, Veolia's anaerobic membrane bio-reactor (AnMBR) developed by its subsidiary Biothane, combines two technologies with proven track records: Biothane's anaerobic biological wastewater treatment and Pentair x-flow's ultrafiltration (UF) membrane separation process. Influent is fed to the anaerobic bioreactor where the organic components are converted into energy-rich biogas. Next, the anaerobic effluent is processed through the UF membrane unit, separating the 'clean' permeate from the biomass. The biomass is returned to the bioreactor, while the ultra-clean filtrate is discharged as particle-free, low BOD/COD effluent, often at levels low enough for direct discharge to the sewer.

In addition to its performance advantages, Memthane delivers significant total operating costs reduction compared with other technologies, taking into account all elements, including membranes, chemicals, sludge disposal and overall energy savings. The simple, single, fully automated reactor system also offers the possibility of remote control.

"Memthane opens the door to treating high-strength, high-solid wastes found in industries such as distilleries, dairies (whey), bio-ethanol producers and instant coffee plants which were previously considered untreatable from an economic standpoint. Memthane is not just an anaerobic MBR technology, but a small footprint solution that offers an array of benefits, reducing disposal costs while generating valuable biogas and remaining easy to operate and maintain," a Veolia spokesman said.

A Pentair cross-flow skid for the anaerobic membrane bioreactor

Memthane maximises renewable energy production while producing superb quality effluent that can be discharged directly to the sewer or often easily reused. The suspended free effluent can also facilitate easy recovery of nutrients for fertiliser production. With a COD removal efficiency of >98 per cent this powerful green energy source offers the possibility of making production plants energy self-sufficient, reducing the dependency on costly external fossil fuels.

Veolia Water handles every step in the water cycle for public authorities including withdrawing water from nature, producing and piping drinking water. It collects, conveys and treats wastewater, in order to recycle it (irrigation, watering, groundwater recharge etc.) or release the treated water into the environment. Veolia Water conserves water resources upstream and protects release environments and ecosystems downstream.

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Publication:Gulf Industry
Date:Jul 1, 2012
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