Articles & Case Studies


Posted: Monday 19th December 2011

Following a rigorous procurement programme, Hydro International, the leading provider of innovative technology for water and wastewater treatment, has been awarded a five-year Framework Agreement by Scottish Water to supply sand filtration equipment.

The award relates to Hydro’s DynaSand® filtration units for suspended solids, nitrate and ammonia removal. The agreement covers the ‘Supply of Wastewater Packaged Plant – Granular Media Filters for Wastewater Tertiary Treatment’ for the Quality and Standards Period III.’

“There are already 25 DynaSand® units in Scotland, providing tertiary treatment for sewage and industrial wastewater treatment works,” comments Chris Day, Hydro International’s Operations Director, Hydro Wastewater Division. “They have been operating successfully for up to 14 years, with well-established technical and maintenance support.

“This Scottish Water agreement allows us to consolidate our position as one of the leading tertiary wastewater treatment suppliers in Scotland, and we look to build on our existing service infrastructure, as we help to improve water quality standards even further.”

Hydro International is the sole UK supplier of DynaSand® technology, with more than 500 installed DynaSand® units and operating and service experience since 1996.

DynaSand® is a continuously operating sand filter with an internal washing system which eliminates the need for wash water storage tanks, backwash pumps and collecting tanks.

DynaSand® offers benefits of high tertiary treatment effectiveness within a very small site footprint, and low power and consumables costs. DynaSand® technology is robust, maintenance requirements are low and the units have a long operating life.

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