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Severn Trent Services Ltd

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Products and turnkey systems design and implementation capability in water analysers/monitors, disinfection equipment using chlorine, electrolytic and U.V. technologies, chemical dosing skids, hazardous gas safety shut-down systems, water audit/metering, waste-water and industrial effluent filtration systems

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Mr Alex Lloyd
Arley Drive Birch Coppice Business Park
Dordon
Tamworth
Warwickshire
B78 1SA
www.severntrentservices.com

Severn Trent Services Provides Chlorine Dioxide Generator to Guangdong Taishan Nuclear Power Plant

Capital Controls® system produces chlorine dioxide, a powerful and versatile oxidizer for water disinfection.

FORT WASHINGTON, Pa. - 29 May 2012
Severn Trent Services has won a contract to supply its Capital Controls® chlorine dioxide generator to the Taishan Nuclear Power Plant in Taishan, Guangdong province China, for the plant's water purification project, phase one. The phase one project treats 22,000 m3/d.

Water recirculated in industrial cooling towers tends to absorb ammonia and organic nitrogen compounds from the air. Because chlorine dioxide does not react with ammonia, it is effective in eliminating algae and slime growth in cooling towers without interim reactions with ammonia. The result is reduced dosage and fewer tower clean-up cycles.

The Capital Controls T70G4000 chlorine dioxide generator is an all-liquid, all-vacuum system. These features provide for complete safe operation as the gas produced is always in solution and any loss of vacuum automatically shuts the system down, preventing reagent or solution leaks. The generator uses commercially available 25 percent sodium chlorite and 32 percent hydrochloric acid to produce a product yield greater than 95 percent.

The vacuum is produced by means of an integrally mounted ejector. The ejector draws the concentrated chlorine dioxide solution into the motive water of the ejector and pumps it to the treatment process. The system can be operated manually or automatically. Automatic control is achieved with a three-ported precision control valve that maintains the proper ratio of reagents throughout the entire flow range of the generator. The reagent flow rates are indicated by means of precision variable area flow meters.


For further information please email Severn Trent Services Ltd

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