Two giant Archimedes screws have been installed at Horsham Wastewater Treatment Works as part of a £36 million upgrade.
Each screw is 15 metres long, weighs more than eight tonnes, and can lift 680 litres of wastewater every second.
Costing £1.2 million, the new equipment replaces older machinery and runs on electric motors – moving the site away from diesel power towards a cleaner, greener future.
Project manager Jonathon Quirk said: "These monster screws are a vital part of keeping Horsham’s wastewater treatment processes flowing smoothly. This upgrade is a big step forward in making our operations more reliable and sustainable — and it’s great to see it in action."
Sam Scargill is Construction and Delivery Lead at CMDP - a joint venture between Costain and MWH Treatment – which are delivering the Horsham upgrade project
He added: "The installation of the new screws is a significant moment for the Horsham team. A lot of work has gone into not just the removal and installation of the screws, but also the over-pumping and temporary works to enable the removal of the screws while maintaining the operational requirements of the work."
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