Case Studies
Sykes Pumps takes textbook approach to
sewer diversion at University of Chichester Pump hire specialist, Sykes Pumps, is helping the University of Chichester to maintain high standards of health & safety and sanitation during building works on campus thanks to an overpumping installation during a sewer diversion.
hose to ensure that the flow can be managed if both the submersible and diesel pumps are deployed.
The University of Chichester is developing a new Engineering & Technology Park constructed by Galliford Try as part of the first phase of the project and the groundworks for the scheme include a sewer diversion on a live student campus, requiring a safety critical over pump while a section of the existing sewer main is replaced.
Sykes Pumps has provided two, 8” electric submersible pumps, located in two manholes at the site. The overpumping operation has been designed to take the flow from the manholes to a section of the main 80 metres away in each location, enabling the section of main in between to be removed.
Two Super Wispaset 200 super silenced 8” diesel pumps have also been provided for use as standby equipment if the level of flow exceeds the capabilities of the submersibles. The company has also provided two fuel tanks a ‘Y-piece’ and 12 inch
Explains Steve Henty from Sykes Pumps; “The section of main involved in this project is both a sewer and a rainwater overflow. The overpumping solution with the submersible pumps has been designed for normal flow rates but if there is heavy rainfall, the additional flow needs to be managed, which is why we have also commissioned the diesel pumps.
“This part of the waste water infrastructure serves around a quarter of properties in Bognor Regis as well as the University’s campus so a safe, efficient and flexible solution was essential.”
Sykes Pumps will provide weekly maintenance and servicing of the pumps on site as part of the pump hire contract to ensure that the equipment is performing well at all times. Installation of the new sewer section is expected to take around four weeks with further phases of ground works and additional overpumping requirements to follow.
Roberts of Port Dinorwic choose Landia’s
wastewater aeration system Roberts of Port Dinorwic, the acclaimed family- owned food manufacturer, has introduced a new Landia aeration system to enhance its wastewater process.
Based at a ten-acre site on the banks of the Menai Strait in North Wales, the food production facility has a screen that captures around 95% of its wastewater’s solids, but needed a tough, non- blocking aerator that would further reduce particle sizes and keep solids in suspension by effective, efficient and economical mixing.
Chief Engineer, Dylan Roberts commented: “Landia came highly recommended. In fact, more than half of the tank manufacturers we consulted said that if we wanted the most reliable and long-lasting aerator, it should be Landia.
“Everything’sbrilliant”, he added. “The Landia AirJet runs for 6-7 hours per day and we’ve had no problems whatsoever. We sometimes have high levels of fat as part of close to a tonne of solids per week, but it’s no problem for the aerator. Landia
have also done much more than just supply their equipment. They’ve worked very closely with us and the tank manufacturer to ensure that everything is right”.
Established in 1924, the fourth-generation family- run Roberts business, which is a trusted leader in
the prepared food industry, purchased a 146m3 tank (6.8m diameter 4.2m height), which now utilises the externally-mounted 7.5kW Landia AirJet aerator. Effluent temperatures are up to 450C, with dissolved solids of around 3%. In addition to the AirJet, wastewater is also processed by a DAF plant and treated with polymer.
The AirJet comprises one of Landia’s renowned no-nonsense chopper pumps (Landia invented the chopper pump in 1950). Designed with an external knife system that stops solids from entering the pump’s casing, the pump is fitted with a venturi nozzle to create the AirJet, of which there are thousands in service, worldwide.
28 drain TRADER | October 2017 |
www.draintraderltd.com
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