Severn Trent Recommissioning Witches Oak Water with Floating Wetlands for Enhanced Water Treatment
Severn Trent Water is recommissioning the Witches Oak Water site in Derby as part of a drought resilience strategy, increasing the raw water supply by up to 90 Ml/d. The project incorporates floating wetlands for preliminary water treatment, aiming to improve water quality and reduce treatment energy and chemical needs. A total of 31 floating wetlands have been installed across three lakes, enhancing biodiversity and ecosystem services. This initiative is part of a £700M green recovery program to develop low carbon water resources.
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Severn Trent Water is reviving the Witches Oak Water site in Derby to enhance drought resilience by increasing raw water supply up to 90 Ml/d. The project employs floating wetlands for initial water treatment, capable of removing 40% to 60% of nitrogen and suspended solids.
A total of 31 wetlands have been installed, complementing refurbishment of existing infrastructure, including a pumping station and fish recovery systems. This initiative is part of Severn Trent's £700M green recovery program, enhancing water resource sustainability and biodiversity while lowering carbon emissions compared to traditional methods.
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