Leading sustainable process solutions provider ACWA Services has won a major subcontract to provide mechanical equipment associated with new manganese removal contactors for Yorkshire Water’s state-of-the-art Rivelin water treatment plant. This is a key element in the utility’s plans to improve water quality and pressure for the city of Sheffield.

Yorkshire Water is spending £13.6 million on improving the 75MLD works, which supplies most of south-west Sheffield with water. Rivelin treats waters from the peaty Pennine hills, which are typically acidic, coloured, and contain iron, aluminium and manganese associated with the peat.

The main contractor is a Mott MacDonald Bentley joint venture, which is undertaking the main body of the refurbishment and upgrading work and has awarded ACWA the £1.1 million subcontract. This is the second and final phase of a comprehensive range of improvements for the site, which boasts an unusual magnetite-based main water treatment process designed for use with highly-turbid waters.

The manganese contactors will be installed in a custom-designed filter building on the small-footprint site, downstream of existing rapid gravity filters. A specialist catalytic media will be used as a filter bed, adsorbing the element as part of the final polishing process for the treated water.

ACWA’s work involves the design, supply, installation and commissioning of all major mechanical equipment associated with the manganese contactors including new inter-stage, backwash and high-lift pumping systems, air scour blowers, large bore stainless steel manifold pipework, valves, penstocks and access steelwork.

Design and procurement is currently under way, and work will begin on site in late April or early May.

ACWA Services Proposals Manager, Gary Harris says:

“ACWA Services possesses expertise across the entire water and wastewater treatment spectrum, which has increasingly made us a partner of choice for many pollution removal challenges. In this case we are extremely pleased to be able to assist Yorkshire Water with a key element of its commitment to ensuring that the people of Sheffield continue to receive a high-quality water supply.”

Further information:

Available from ACWA Services Ltd

Tel: 00 44 (0) 1756 794794.

Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Web: www.acwa.co.uk