South West Water to start £6M WTW project
South West Water is beginning work this month on a £6M project to upgrade Tottiford Water Treatment Works in South Devon.
The utility will install six new granular activated carbon filters, a new pumping station and a state-of-the-art ultraviolet disinfection system at the works, which serve around 70,000 customers with drinking water around Bovey Tracey and Torquay.
Granular activated carbon (GAC) is a specially engineered porous material with a large internal surface area - just one teaspoon has the same surface area as a football pitch. Due to its large surface area and special surface chemistry it can remove natural and manmade organic matter sometimes present in Fernworthy, Kennick, Trenchford and Tottiford reservoirs, which supply the Tottiford works.
Meanwhile, ultraviolet (UV) disinfection uses UV light to destroy harmful bacteria and viruses sometimes found in the untreated reservoir water.
Chris Rockey, Head of Drinking Water Quality, said: "We already have some of the best tap water in the country but this major investment in additional treatment will deliver even better drinking water to our customers in South Devon."
Water that has passed through the GAC and UV treatment process will start being introduced into supply from March 2018. In total, the works produce around 26 megalitres of water a day.
Rockey added: "In the very short term, some consumers may notice a slight change in the smell or taste of their tap water. To minimise this and hopefully avoid it completely, we will bring the new filters on line one at a time and blend the new and improved water with the water currently produced by the works to ensure a smooth transition."
This approach was previously undertaken successfully at Restormel and Wendron water treatment works in Cornwall in 2014.
- Panasonic tests new water purification technology in India Photocatalytic water purification technology that turns polluted water into safe drinking water is undergoing testing in... Read More >
- Severn Trent showcases Birmingham Resilience plans Severn Trent has announced a second round of public exhibitions to show local people its latest proposals to develop an... Read More >
- EC grant for Optiqua's water quality firewall technology Optiqua Technologies has received a grant from the EC's Horizon 2020 SME Instrument for the development of AquaSHIELD, an... Read More >
- TOC in wastewater: vital warnings The presence of organic compounds in a water sample can indicate any of number of things, including contamination which... Read More >
- Bioresource data leads to focus on sludge quality The recent publication of data about the quantity and quality of sludge produced at water company wastewater treatment... Read More >
- Opinion: Why the EA needs to rethink its charges hike AD operators will have little time to adapt to the shock increase in charges proposed by the EA, writes Anaerobic... Read More >
- Top Tips for... chemical dosing Chemical dosing is a critical element of water and wastewater treatment, and while most users choose to invest in their... Read More >
- Top Tips for... System Totex With Ofwat's AMP6 reforms putting Totex at the centre of the investment planning process, applying this approach at inlet... Read More >