Siemens' disc filters to increase flow capacity at wastewater treatment plant in Ohio

WARRENDALE, PA, Feb. 7, 2011 -- The Metropolitan Sewer District of Greater Cincinnati (Ohio, USA) will be installing four Forty-X disc filters from Siemens Water Technologies at its Sycamore Creek Wastewater Treatment Plant...

Feb 7th, 2011
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The Siemens Forty-X disc filter allows a high flow capacity with a small footprint. Photo: Siemens AG

WARRENDALE, PA, Feb. 7, 2011 -- The Metropolitan Sewer District of Greater Cincinnati (Ohio, USA) will be installing four Forty-X disc filters from Siemens Water Technologies at its Sycamore Creek Wastewater Treatment Plant. Part of a wastewater treatment improvement project, the filters will allow the plant to increase design flow capacity from 6 to 9 mgd (22,712 to 34,069 m³/d), with a peak flow capacity of 18 mgd (68,137 m³/d). The project also changes the plant's process from conventional activated sludge treatment to advanced biological phosphorus removal.

The disc filters will replace the Sycamore Creek plant's current sand filtration system, which has reached its usefulness due to increased flow volumes. Three of the disc filters will be operational, with one remaining in stand-by mode. The Forty-X disc filters' small footprint and versatile hydraulic capabilities will allow them to be easily retrofitted into the sand filters' existing concrete tankage, using only four of the eight filter concrete basins to meet the increased plant capacity.

The Forty-X disc filter's pleated filter media panel design provides 40% more filtration area, compared to flat panel designs. The inside-out filtration design offers many distinct advantages over the outside-in filtration technology. For example, all mechanical and functional hardware as well as the filtration panels are accessible from the top of the filter without draining the filter tank. The filter panel's spoke (housing) design discourages floatable materials from catching and impeding water flow through the filter. Additionally, for safety and convenience, permanently mounted sliding covers allow operators easy access to all the filter components as well as keeping blowing debris out of the tank and deterring algae growth within the filter tank.

Forty-X is a trademark of Siemens and/or its affiliates in some countries.

Further information about solutions for water treatment is available at: http://www.siemens.com/water

The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of environmentally friendly production, transportation, building and lighting technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility and Osram. With around 204,000 employees worldwide (September 30), Siemens Industry achieved in fiscal year 2010 total sales of approximately €34.9 billion. Web: www.siemens.com/industry

The Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities comprising the business activities of Siemens VAI Metals Technologies, Water Technologies and Industrial Technologies. Activities include engineering and installation, operation and service for the entire life cycle. A wide-ranging portfolio of environmental solutions helps industrial companies to use energy, water and equipment efficiently, reduce emissions and comply with environmental guidelines. With around 29,000 employees worldwide (September 30), Siemens Industry Solutions posted sales of €6.0 billion in fiscal year 2010. Web: www.siemens.com/industry-solutions

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