New Hybrid Membrane Bioreactor (MBR) Solutions Offer Plant Operators More Options

Warrendale, Pa., June 1, 2006 -- Siemens Water Technologies has introduced new membrane bioreactor (MBR) technology that integrates an expansive portfolio of biological processes with membrane filtration for unparalleled effluent quality. This new, small footprint integrated system, a USFilter technology, combines Memcor membrane operating system units with proven Siemens biological technologies such as the Envirex Orbal and VLR systems, aerated anoxic process and Cannibal solids reduction process to provide a full line of membrane bioreactor (MBR) processes. The SmartMBR control package is at the heart of each of these combined systems. Water Technologies is a division of the Siemens Industrial Solutions and Services Group (I&S).

The membrane operating system, paired with an Envirex Orbal or VLR oxidation system and aerated anoxic process, is designed for operators seeking activated sludge, advanced secondary sludge treatment, simultaneous nitrification-denitrification, biological phosphorus removal or stormwater treatment and reduced energy consumption. Adding a Memcor membrane operating system unit can help plants required to meet strict effluent regulations. Plants dealing with biosolids disposal issues will be interested in the Cannibal solids reduction process paired with a SmartMBR control package.

The Calls Creek Wastewater Treatment Plant in Watkinsville, Ga., is just one facility that has benefited greatly from using a Siemens hybrid biological treatment solution. Adding a MBR system to its existing Orbal process increased the plant(TM) wastewater treatment capacity and reduced its biosolids production and sludge hauling costs. The expansion also helped Calls Creek achieve a superior level of biological treatment and increase capacity of the downstream ultraviolet system through improved transmissivity. Additionally, the upgrade has promoted commercial growth and extended service to unincorporated areas for future residential use.

As Calls Creek can attest, Siemens(TM) array of integrated proven processes comes with a total process guarantee that assures wastewater treatment plant customers of increased effluent quality and capacity, maximum energy efficiency and compliance with ever-changing regulations. In addition, combining these biological processes with membrane technology allows customers to benefit from superior membrane technology, proven biological processes and process optimization and single-source warranty.

The custom-engineered plants can also be supplied as a single process program for both new and retrofit applications, thus providing single-point responsibility. This translates into a faster project turnaround and a single permit request for fewer local and state government approvals.

Siemens Water Technologies offers a broad selection of proven biological wastewater treatment technologies such as Orbal and VLR aeration, Sequencing Batch Reactors, Memcor membrane operating systems and the Cannibal solids reduction process. All are supported by technical personnel, operations specialists and product managers who "together" represent hundreds of years of process development and application experience. For municipalities and industry, Siemens Water Technologies is advancing the science of biological treatment. One of the latest advances is the combination of membranes and biological treatment technologies to create the first truly integrated membrane bioreactors with solids reduction and SmartMBR control technology. Siemens has created an MBR technology center which coordinates the company's expertise in membrane filtration and biological treatment and concentrates on meeting customer needs for treatment technology.

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