From Waste to Resource
Castle Pumps ’ Part to Play in Water Recycling
Whether water is being used as part of a production process or for cleaning down areas and process equipment , recycling water can save food manufacturing plants thousands of litres every year . Implementing a wastewater treatment system can therefore significantly reduce water bills , and Castle Pumps have been playing their part in delivering these systems .
Enquiry
Castle Pumps received an enquiry from a fabricator of fluid storage tanks who were designing a waste storage and recycling system . Their steel container encloses a water tank with pressure washers connected , used to wash down site equipment . Once used , the collected water is passed through a Lamella Separator and Filtration system to remove any large solid particles and returned to the original water tank to use again .
They were looking for Castle to specify a wastewater pump that would remove the filtered-out sludge at the bottom of the Lamella Settlement Tank and transfer it into a separate container to be disposed of .
Solution
When specifying a wastewater sludge pump for this Lamella Separator application , the nature of the fluid was the first thing to consider . 2-3 % solid content was estimated and so it was important the pump in question could handle this , as well as the viscous sludge consistency . Due to its only wetted part being the internal tube , a peristaltic pump is ideal as the passing of solids is only limited to the diameter of the tube . There are no valves to clog or seals to wear , making it low maintenance for even more challenging , solid laden fluids .
After discussing the flow rate and pressure requirements , Castle Pumps specified the model of peristaltic pump that would meet the duty range . To provide the user with flow control for
There are no valves to clog or seals to wear , making it low maintenance for even more challenging , solid laden fluids .
when the contents of the Lamella settlement tank differ , the pump was also specified with an integrated inverter .
Its dry run capabilities means that there would be no damage if the pump is accidentally left running after the settlement tank is emptied of sludge . Peristaltic pumps are also self-priming which was important as the pump was to be installed above the settlement tank and needs to draw the fluid up .
The final tick in the box was that peristaltic pumps are low maintenance in design , thanks to the inner tube being the only wearing component . Given the often-harsh nature of waste products , this is an excellent feature when handling wastewater , sludge or effluent .
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