เกจวัดแรงดัน , Business Development Director for Te-Tech Process Solutions in Southampton, UK, explores the benefits of a pulsed air carry sludge pumping choice compared to conventional pumped systems.
A te-sewpas unit at Stocksbridge.
When Yorkshire Water determined to relocate Stocksbridge Wastewater Treatment Works 2km to the south to allow a significant housing improvement, the temporary to Mott MacDonald Bentley (MMB) was for reliability, sustainability and low operating value. The relocation additionally allowed for an improve from 13,000 population to fifteen,000 for the 2030 design horizon.
The new £15.sixty five million works consists of duty/standby nice screens, a vortex grit elimination unit and two 15.5m diameter main settling tanks followed 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 and then flows by gravity to re-enter the process upstream of the primary settlement tanks.
Simple, low opex sludge pumping

For this crucial responsibility, MMB chosen the te-sewpas pulsed air lift pump system provided by Te-Tech Process Solutions. The self-contained unit incorporates a 4.6kW obligation side channel air blower, actuated air management valves, air manifold and control panel housed inside a weatherproof GRP enclosure and is delivered to site fully assembled and tested. Each pulse of air lifts a quantity of sludge and discharges it from the sludge discharge pipe. A programmable timer in the PLC allows 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 flexible air delivery hoses routed via ducts to each of the desludge chambers. The air delivered is scorching and consequently there is no need for thermal lagging or insulation. Each te-sewpas unit can serve up to 4 major or humus tanks with typical individual air supply hose length up to 35m.
At Stocksbridge, a single Type B te-sewpas unit with duty/standby air blowers serves the 2 humus tanks. Rather than utilizing the standard management panel, MMB decided to combine the te-sewpas controls into the central PLC and Te-Tech supplied a useful design specification for this objective. The venture was completed in October 2019. “We’ve been utilizing the air raise techniques of various makes on our sites for the last 20–25 years,” says Yorkshire Water’s Wastewater Asset Planning Sponsor Jan Buczylo, “The te-sewpas is particularly sturdy and we decided to retrofit further techniques rather than standard progressive cavity pumps at each Stillington and Sutton-on-the-Forest.” Installation of those two systems was completed in April 2021.
Significant whole life price financial savings

The te-sewpas system supplies vital whole life cost savings when in comparability with standard pumped systems. For a typical set up serving two tanks, like the Stocksbridge challenge, primarily based on an estimated 25% discount in the electrical power consumption and reduced upkeep requirements, te-sewpas provides a 40% lower capital value and 50% reduction in operational cost compared to a pumped desludge system.
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