Severn Trent Services Showcases Latest Technological Developments in Water and Wastewater Treatment at IFAT ENTSORGA


TAMWORTH, U.K. - Severn Trent Services, a leading global supplier of water and wastewater solutions, will be attending the IFAT ENTSORGA exhibition in Munich, Germany, from 13 - 17 September 2010. The company will be demonstrating its innovative solutions for water and wastewater treatment at stand A1.105. IFAT ENTSORGA is a leading global trade fair for water, sewage, waste and raw materials management.

A world leader in desalination and water reclamation / reuse
Pressure on the world's water resources driven by climate change and population growth has created increased global demand for desalination and water reclamation / reuse technologies. Visitors to the Severn Trent Services stand can obtain information about the company's proven technologies designed to address world water shortages. The company has been providing water desalination technologies for more than 25 years and treatment solutions for reuse applications for more than 40 years.

Tertiary treatment systems
Severn Trent Services is one of the world leaders in tertiary treatment technologies, with more than 300 systems installed worldwide including treatment of more than 1 million m3/d in Europe alone. The TETRA® DeepBed(TM) filtration system is a down flow sand filter for the filtration of effluent from municipal wastewater treatment plants. The technology offers process flexibility and high efficiency backwash for the removal of suspended solids and other insoluble contaminants. For nitrate-nitrogen and suspended solids removal, the process is easily upgraded to the TETRA® Denite® system, a fixed-film biological denitrification process. The Denite system integrates well with other plant treatment processes to provide superior total nitrogen and phosphorous removal. TETRA Denite and TETRA DeepBed filters represent more than 10 percent of the world's capacity for wastewater reuse systems including more than 40 percent of all installations in Florida, United States.

The TETRA® NSAF (nitrifying submerged aerated filter) is a tertiary ammonia removal process for municipal and industrial wastewaters. The TETRA NSAF is available in a range of sizes from small modular units for above ground construction to large bespoke design plants. All sizes of the NSAF are capable of achieving low ammonia standards.

Electrochlorination technology
Severn Trent Services is a leading supplier of electrochlorination technology. Since 1988 the company has installed more than 3,500 ClorTec® on-site sodium hypochlorite generating systems worldwide, and the systems have been used for water reclamation / reuse applications in water-starved regions of the world. Severn Trent Services also has developed a cost-effective system for the on-site production of sodium hypochlorite for use in swimming pools, cooling towers and food and drink applications - the ClorTec SCT mini on-site sodium hypochlorite generating system. This compact, innovative new product offers a safe and reliable alternative to the transportation of hazardous chemicals and is easy to maintain.

Microwave UV disinfection
Severn Trent Services' innovative MicroDynamics® microwave ultraviolet (UV) disinfection systems have been successfully employed in water reuse applications worldwide, including the recent installation of Spain's first-ever system combining chlorine dioxide and UV system. The MicroDynamics system uses microwave energy to energize the bulbs and generate consistent-strength UV disinfection. The system offers extended bulb life and reliability, operating cost savings and health and safety benefits for employees on site due to its unique design. The bulb replacement and maintenance costs of MicroDynamics systems can be as little as half of competing UV technologies, primarily driven by the unique microwave-powered electrodeless lamps. Each system comes with a three-year bulb life warranty.

Underdrain filters for drinking water applications
The TETRA® LP Block,(TM) a dual parallel lateral underdrain filter floor for RGF and GAC filters, is extremely popular with plant owners for their low headloss, lightweight construction and easy installation. The system provides excellent distribution of both backwash air and water to offer more efficient bed cleaning and lower operating costs. Severn Trent Services has been awarded several contracts to supply TETRA LP Blocks for pre-treatment at desalination plants throughout Europe including the recently completed Fouka SWRO plant at Tipaza, Algeria, in conjunction with ACCIONA AGUA.

As part of the European Water Association's 15th International Symposium on water, wastewater, waste and energy, Severn Trent Services will be giving three poster presentations focusing on innovative, new technologies including TETRA Denite, ClorTec on-site sodium hypochlorite generators and MicroDynamics microwave UV disinfection.

About Severn Trent Services
Severn Trent Services (www.severntrentservices.com), with global headquarters in Fort Washington, Pa., USA, is a leading supplier of water and wastewater solutions. The company's broad range of products and services is concentrated around disinfection, instrumentation and filtration technologies, and contract operating services. Our analytical services group is the United Kingdom's leading environmental testing organization, and our international operating services business provides worldwide contract operation and support for all aspects of water and wastewater utility operational development and business transformation. Severn Trent Services is a member of the Severn Trent Plc (London: SVT.L) group of companies. Severn Trent is a FTSE 100 company.

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