Bespoke pH adjustment system used at Midlands reservoir
A bespoke pH adjustment system has been used to treat 46 megalitres of alkaline water created by a large-scale upgrade project at a Midlands reservoir.
Severn Trent Water’s Ambergate Reservoir serves customers throughout the East Midlands, but with much of its infrastructure dating back over 100 years it is approaching the end of its design life. As a result, a major four-year upgrade is currently underway.
Part of the upgrade work entailed filling chambers in the newly constructed reservoir with highly alkaline (pH11) lime water to induce crystal formation within the fine cracks that occurred during the curing of the concrete structure.
The Laing O’Rourke/ NMC joint venture team working on the project approached process solutions experts Siltbuster to create a system capable of treating the extremely large volume of water used.
The bespoke containerised pH adjustment system created by the company was used to treat 46 mega litres (46,000 m3) of alkaline water at rates of up to 750m3 per hour and cleaned to the highest standards, enabling it to be discharged into a nearby surface watercourse.
With limited space on site and tankering of the water off-site not an option, Siltbuster created a bespoke system designed to take a side stream of the 400m3 per hour water and saturate it with CO2 to neutralise the pH. Under pressure, the fully saturated water was injected back into the mainstream of water allowing the full 400m3 per hour to be neutralised before being discharged. The system was recorded as treating circa 740m3 per hour of the high pH waters, which significantly reduced overall dewatering time.
Tristan Hughes, Siltbuster’s Regional Sales Engineer, said: “Creating bespoke systems to address specific issues is a core part of what we deliver for our customers. This project involved the treatment of extreme flow rates so we had to build a system able to cope efficiently and effectively with a very high volume of water. We successfully achieved that while also delivering environmental and commercial benefits.”
- Depleting water resources to drive treatment equipment demand The global water and wastewater treatment equipment market is set to grow at a compound annual growth rate (CAGR) of... Read More >
- Portsmouth Water plans bulk supplies with neighbouring companies Portsmouth Water has published its Water Resources Management Plan (WRMP) covering the next 25 years, which includes... Read More >
- Open reservoir to be decommissioned in Ballyboden project Irish Water has revealed plans to decommission an open storage reservoir and replace it with a covered alternative as part... Read More >
- Fats, oil and grease need clear thinking Latest research from Cranfield has shone a light on the characteristics of of fats, oil and grease (FOG) droplets entering... Read More >
- Microbes can deal with surfactants A wide variety of surfactants are used in industry and need to be removed from wastewater, but a similar variety of bacteria... Read More >
- Water treatment – when are bacteria dead? A new technique for measuring bacterial concentrations can provide valuable information about whether or not our water is... Read More >
- Peristaltic pumps prove the right dose for Welsh Water Switching from diaphragm to peristaltic pumps for chemical dosing helped Dwr Cymru Welsh Water save Opex costs while... Read More >
- Specialist microbes to remove wastewater hydrocarbons Hydrocarbons present particular difficulties when present in wastewater, but the right combination of bacteria can degrade... Read More >
- Head of Engineering Our members control and maintain the critical national infrastructure that delivers the gas and electricity services into our homes and... Read more here.
- Assistant gas to grid engineer GENeco is a multi-award winning recycling and renewable energy company. We were created by Wessex Water in 2008 to help our parent company... Read more here.
- Chief Executive Officer The Electricity Association of Ireland (EAI) is the representative body for electricity producers, retailers and distributors on the island... Read more here.