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Siemens’ Disc Filter Receives Title 22 Approval

29.09.2008
Siemens Water Technologies’ Forty-X disc filter is now compliant with the State of California Water Recycling Criteria (Title 22). As a result, the disc filter is an accepted filtration technology for projects that require Title 22 certification. More and more territories and countries are beginning to adopt Title 22 as an industry standard.

The Forty-X disc filter’s inside-out filtration design allows for a higher operating headloss capability, ensuring a more sustainable operation in terms of more throughput, better feed distribution, and fewer backwash frequencies.
Forty-X is a trademark of Siemens and its affiliates in some countries.

The Title 22 regulation requires filtration technologies to reliably meet specific performance parameters for wastewater reuse applications. Reuse water can be used for urban landscaping, agriculture, decorative lakes and fish hatcheries, and a wide variety of industrial applications.

The data submitted to the California Department of Health Services was from an actual production unit tested in 2007 at a local water pollution control facility. The pilot test lasted for eight consecutive months and challenged the filter under a variety of hydraulic and solids load scenarios. The pleated woven cloth with absolute micron rated pores proved the consistent effluent quality of less than 2 NTU and less than 5 mg/L TSS regardless of incoming load. The high hydraulic loads also resulted with backwash percentages of less than 2% on average.

The Forty-X disc filter’s innovative woven polyester pleated panel design provides increased treatment capacity and an ultimate barrier for suspended solids in tertiary treatment processes. The inside-out filtration design allows for a higher operating headloss capability, ensuring a more sustainable operation in terms of more throughput, better feed distribution, and fewer backwash frequencies. Additional features include a trash-tolerant filter panel housing designed to prevent entrapment and accumulation of inorganic material, water pressure-assisted seals, and wind-safe sliding covers that make accessibility and maintenance easier.

The Forty-X disc filter’s inside-out filtration design allows for a higher operating headloss capability, ensuring a more sustainable operation in terms of more throughput, better feed distribution, and fewer backwash frequencies
Forty-X is a trademark of Siemens and its affiliates in some countries.
The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of production, transportation and building systems. Integrated hardware and software technologies combined with comprehensive industry-specific solutions enable Siemens to enhance the productivity and efficiency of its customers in industry and infrastructure. The Sector comprises six Divisions: Building Technologies, Industry Automation, Industry Solutions, Mobility, Drive Technologies and Osram. In fiscal 2007 (ended September 30), Siemens Industry generated sales of approximately EUR40 billion (pro forma, unconsolidated) with around 209,000 employees worldwide.

With the business activities of Siemens VAI Metal Technologies, (Linz, Austria), Siemens Water Technologies (Warrendale, Pa., U.S.A.), and Industry Technologies, (Erlangen, Germany), the Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities. Using its own products, systems and process technologies, Industry Solutions develops and builds plants for end customers, commissions them and provides support during their entire life cycle.

Siemens AG
Corporate Communications and Government Affairs
Wittelsbacherplatz 2, 80333 Munich
Germany
Reference number: IS0908.7350e fp
Media Relations: Wieland Simon
Telephone: +49 9131 7-46169
E-mail: wieland.simon@siemens.com
Siemens AG
Industry Sector - Industry Solutions Division
Schuhstr. 60, 91052 Erlangen, Germany

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