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Project: RapStech® service

Client: Grafham Carbons/Severn Trent Water/EPSRC

When: 2000 onwards


RapStech® provides a rapid method to test the capacity of GAC and determine the optimum time for regeneration or replacement. The research started with a PhD for pre-regeneration acid treatment of GAC in 2000 and then went on to develop methods for rapid small scale column testing (RSSCT) of carbon from 2001 to 2005.


The methodology was trademarked by WatStech Ltd. in 2005 and is now provided to Grafham Carbons who offer the service as part of their carbon regeneration package. The RapStech® facility was developed further at the request of Severn Trent Water (STW).


The results have been used as a basis for STW in-house “pesticide model” that has been directly applied to extend GAC bed life, by optimising regeneration frequencies and thereby reducing OPEX costs. This has also provided confidence for prediction of compliance with the pesticide PCV.

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WatStech Ltd. The Technology Centre, Wolverhampton Science Park,
Wolverhampton, WV10 9RU
Company no. 5404280 VAT no. 857 6311 06
 
Tel: 03456 123 820
Fax: 03456 123 821

info@watstech.com

WatStech is working towards ISO 9001 accreditation