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Yorkshire Water makes use of Te-Tech air-lift pumping for wastewater duties

เครื่องมือที่ใช้ในการวัดความดัน , Business Development Director for Te-Tech Process Solutions in Southampton, UK, explores the advantages of a pulsed air carry sludge pumping choice in comparability with typical pumped techniques.
A te-sewpas unit at Stocksbridge.
When Yorkshire Water determined to relocate Stocksbridge Wastewater Treatment Works 2km to the south to permit a major housing improvement, the temporary to Mott MacDonald Bentley (MMB) was for reliability, sustainability and low working value. The relocation also allowed for an improve from thirteen,000 inhabitants to fifteen,000 for the 2030 design horizon.
The new £15.65 million works consists of duty/standby fantastic screens, a vortex grit removal unit and two 15.5m diameter main settling tanks adopted by organic therapy in seven trickling filters with two sixteen.7m humus settlement tanks. Sludge produced in the humus settlement tanks is delivered to a chamber alongside the tanks after which flows by gravity to re-enter the process upstream of the first settlement tanks.
Simple, low opex sludge pumping
For this critical duty, MMB selected the te-sewpas pulsed air lift pump system equipped by Te-Tech Process Solutions. The self-contained unit incorporates a 4.6kW duty facet channel air blower, actuated air control valves, air manifold and management panel housed inside a weatherproof GRP enclosure and is delivered to web site fully assembled and examined. Each pulse of air lifts a amount of sludge and discharges it from the sludge discharge pipe. A programmable timer in the PLC permits the frequency and length of desludging to be adjusted to allow the sludge to consolidate thus eliminating any potential ‘rat-holing’ and guaranteeing constant desludging.
The unit could be situated close to the tanks that it serves with versatile air supply hoses routed via ducts to every of the desludge chambers. The air delivered is hot and as a result there isn’t any need for thermal lagging or insulation. Each te-sewpas unit can serve up to four main or humus tanks with typical particular person air supply hose size as a lot as 35m.
At Stocksbridge, a single Type B te-sewpas unit with duty/standby air blowers serves the two humus tanks. Rather than using the usual management panel, MMB decided to combine the te-sewpas controls into the central PLC and Te-Tech supplied a useful design specification for this purpose. เกจวัดถังแก๊ส was completed in October 2019. “We’ve been utilizing the air lift systems of varied makes on our sites for the last 20–25 years,” says Yorkshire Water’s Wastewater Asset Planning Sponsor Jan Buczylo, “The te-sewpas is especially strong and we determined to retrofit additional methods in place of standard progressive cavity pumps at each Stillington and Sutton-on-the-Forest.” Installation of these two techniques was completed in April 2021.
Significant whole life value financial savings
The te-sewpas system provides important complete life value financial savings when compared to conventional pumped methods. For a typical installation serving two tanks, just like the Stocksbridge venture, based mostly on an estimated 25% reduction within the electrical energy consumption and lowered maintenance necessities, te-sewpas supplies a 40% lower capital cost and 50% reduction in operational cost in comparability with a pumped desludge system.
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