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New screens in place as SPIRAC and MWH treatment fight back storms

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At a crucial stage of a £43 million (€50 million) upgrade, including a critical inlet screen and screen handling replacement, the last thing a contractor would want is for not one, not two, but three back-to-back storm events.
Yet for one leading solution provider to the water industry, it provided the ultimate test for new inlet screens at Hartshill Sewage Treatment Works (STW) near Nuneaton (pe 100,000) in Warwickshire, England.
Since July 2022 (through to November 2024), MWH Treatment are responsible for the design and integration of new inlet screens and screens handling, expansion of the current primary and secondary treatment, plus the addition of a new tertiary treatment and a sludge treatment system.
This important STW is an all-flows-works; being upgraded as part of proactive capital maintenance, and in lieu of an additional 430 l/s which is to be pumped over from Hinckley (pe 50,000) in nearby Leicestershire, to create a total flow of 1560 l/s.
Working to reduce steel and concrete use where possible, Severn Trent Water and MWH Treatment wanted to reuse the existing inlet structure; removing the need for any new civils, or modifications to...

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