Kruger NEOSEP MBR receives California Title 22 acceptance

The Veolia Water unit's NEOSEP Membrane Bioreactor (MBR) won acceptance from the California Department of Health Services as acceptable filtration technology for compliance to Title 22 California Water Recycling Criteria. For MBR technology to achieve approval, filtered effluent can't exceed a turbidity of 0.2 NTU for over 5% of a 24-hour period nor 0.5 NTU ever. The system far surpassed the criteria by achieving turbidity readings less than 0.05 NTU for 100% of samples taken during testing...

CARY, NC, Dec. 1, 2006 -- The Kruger NEOSEP™ Membrane Bioreactor (MBR) received acceptance from the California Department of Health Services as an acceptable filtration technology for compliance with the State of California Water Recycling Criteria (Title 22).

For MBR technology to achieve Title 22 approval, the filtered effluent should not exceed a turbidity of 0.2 NTU for more than 5 percent of the time during a 24-hour period and should not exceed a turbidity of 0.5 NTU at anytime. The NEOSEP system far surpassed the Title 22 criteria by achieving turbidity readings less than 0.05 NTU for 100% of samples taken during the testing period.

The NEOSEP system was tested at the Point Loma Waste Water Treatment Plant in San Diego, CA, and evaluated for an operational period of approximately 1,200 hours. The testing period included a steady state operation at the membrane system design flux and a 6 day peaking test where the membrane operated at flux rates two times design for a period of two hours in the morning and two hours in the evening. The peaking events helped to simulate the diurnal events that occur daily at a full scale waste water treatment facility. Based on the NEOSEP systems ability to maintain excellent effluent quality and steady operating pressures during the peaking conditions, it was approved for a typical design flux of 17 to 38 gfd (28.8 to 64.5 LMH).

In addition to its exceptional effluent turbidity results, NEOSEP also achieved effluent BOD5 values below the detection limit of 2 mg/L for all samples collected during the study as well as complete nitrification. Based on the tight pore structure of the NEOSEP™ Flat Sheet membrane, 0.08 micron pore size with a standard deviation of 0.03 µm, the unit achieved more than 3.0-log removal of MS2 virus for more than 50% of the samples before and after cleaning the membranes.

I. Kruger Inc. is a water and wastewater solutions provider specializing in advanced and differentiating technologies. Kruger provides complete processes and systems ranging from biological nutrient removal to mobile surface water treatment. The ACTIFLO® Microsand Ballasted Clarifier, BIOCON® Dryer, BIOSTYR® Denitrification System, NEOSEP™ MBR and HYDROTECH Discfilters are just a few of the innovative technologies offered by Kruger. Kruger is a Veolia Water Solutions & Technologies company.

Veolia Water Solutions & Technologies (www.veoliawaterst.com) is the technological subsidiary of Veolia Water. Veolia Water Solutions & Technologies (VWS), which includes five subsidiaries in North America (HPD, John Meunier, Kruger, N.A.Water Systems, Whittier Filtration), is a world leader in engineering and technological solutions in water treatment for industrial companies and municipal authorities. VWS is also one of the world's major design-build providers of water and wastewater treatment facilities. Present in more than 50 countries, with 6100 employees, Veolia Water Solutions & Technologies had revenue of $1.8 billion in 2005.

Veolia Water (www.veoliawater.com), the water division of Veolia Environnement (www.veoliaenvironnement.com), is the world leader in water services. Veolia Water specializes in managing water services outsourced by municipal authorities, industry and tertiary sector companies. Veolia Water serves 110 million people worldwide. With 67,000 employees, the company had a turnover of $10.7 billion in 2005.

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Also see:
-- "Veolia Water signs partnership agreement in Russia"
-- "Akzo Nobel sells MPP Systems business to Veolia Water Solutions & Technologies"
-- "European initiative that includes Veolia's Anjou Recherche focuses on standardization of MBR technology"
-- "Veolia Water confirms its growth in Asia with several new contracts"
-- "Veolia Water, as part of a consortium, wins the design & build contract for the wastewater treatment plant for the town of Angers in France"
-- "Veolia Water is awarded the contract for upgrading Bayswater water treatment plant in Australia"
-- "Veolia Water wins contract in Bahrain to build world's largest multiple effect distillation desalination plant"

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