Completed Projects

Bullhouse Quarry

The Bullhouse Project, South Yorkshire

The Bullhouse Project is a £1.1 million scheme for the Environment Agency to treat a gravity discharge of contaminated minewater, in South Yorkshire. The scheme was partially funded by the European Commission and comprised the design and supervision of construction of the installation of two pumping stations, twin 850m overland pipe ranges and a large mine water treatment lagoon constructed in a disused quarry. The scheme was completed in August 1998.   More Information >

Chemical treatment plant

Old Meadows, Lancashire

This project located in Lancashire clarified the iron contaminated discharge from the former Old Meadows Adit. A feasibility study into a minewater treatment project was undertaken and a commission for the detailed design was awarded.
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Awaiting Image

Polkemett, West Lothian

This project involved an upgrade to an existing treatment system to accept an increase in quantity and iron concentration in the minewater. Treatment of the minewater containing 50 mg/l dissolved iron at a flow rate of 65 litres/sec is by Hydrogen Peroxide injection to achieve effective sedimentation in the limited treatment area available.

New sedimentation ponds and improvements to existing systems were devised to increase treatment efficiency and to provide 'ochre sludge' storage. A "low cost" wetland was constructed by the promotion of existing naturally occurring wetland plants.

Hillside

Deerplay Mine, Lancashire

The discharge from the former Acomb adit devastated the quality and amenity of Red Burn through the urban area of Acomb Village. A study into treatment of the discharge and a detailed design was conducted. A pumping scheme located in the mine adit will discharge water to an aeration cascade with settlement in sedimentation ponds and tertiary treatment on a wetland. Construction of the scheme valued at £0.5m has now been completed and the system has operated satisfactorily for over 12 months.