Centrifuges help treatment plant save substantial annual costs
Problem
The Greenway Wastewater Treatment plant in London, Ontario, used belt presses to dewater biosolids. The solids content was such that the plant had to use ancillary fuel to maintain the temperature in the fluidized bed incinerator.
Solution
The plant installed three Flottweg C7E centrifuge units. The process operates 95% of the time, and two of the units run at all times. The machines each accommodate 1,200 liters per minute of liquid material, or 1,700 kg per hour of mass flow.
Result:
The centrifuges enable the plant to increase the solids content to about 26%, and ancillary fuel is no longer needed, leading
