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Keeping Tyseley on Track
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ELGA Process Water is helping Veolia Environmental Services
maximise boiler efficiency at a major energy recovery facility
When Veolia Environmental Services required a specialist conditioning chemical supplier for the boiler water at its Tyseley Energy Recovery Facility it turned to ELGA Process Water for help. The Tyseley plant incinerates 350,000 tonnes of Birmingham’s non-recyclable rubbish each year and exports 25MW of electricity to the National Grid, suitable to power over 41,000 homes. The facility has two 45bar 400°C water tube boilers delivering 67 tonnes per hour of steam to the high pressure turbines. It also has a 10bar waste heat shell boiler fuelled by a clinical waste incinerator, and this supplies steam to a low pressure turbine.
In order to maximise boiler efficiency, the quality of the water fed to the boilers has to be carefully controlled. Tyseley produces high purity deionised water on site and adds chemicals to scavenge oxygen and adjust the pH to prevent corrosion. The combination of two types of boiler with common feed water and condensate systems means that controlling the boiler water chemistry at Tyseley requires a specialist solution.
ELGA Process Water, a Veolia Water Solutions & Technologies company, carried out a detailed site survey with technical support from their Boiler Competence Centre. A solution was developed, which included the appropriate chemicals from their Hydrex range to provide protection of the boilers, turbines and condensate system, as well as recommendations for regular service support to maintain ongoing boiler efficiency and optimal performance.
Andy Bullock, Operations Manager for the Tyseley facility is pleased with the result: “ELGA Process Water worked closely with us to achieve the appropriate boiler water quality and we’ve been particularly impressed with the technical support from the Boiler team and their readiness to formulate bespoke conditioning chemicals for our system.”
About the company:
ELGA Process Water is part of Veolia Water Solutions & Technologies (VWS), a subsidiary of Veolia Water. VWS is a leading design & build company and a specialised provider of technological solutions in water treatment. With over 9,500 employees in 57 countries, Veolia Water Solutions & Technologies recorded revenue of ?2.5 billion Euros in 2009.
Veolia Water, the water division of Veolia Environnement, is the world leader in water and wastewater services. Specialized in outsourcing services for municipal authorities, as well as industrial and service companies, Veolia Water provides water service to 95 million people and wastewater service to 66 million. With 95,789 employees in 66 countries, its 2009 revenue amounted to ?12.5 billion.
