Two ABEL HP-K-25 heavy duty high pressure piston pumps from Germany have recently been supplied to a Wastewater Treatment Plant in the North Island for cleaning wastewater screening equipment. The pumps will each deliver a flow rate of 250 litres per minute at a pressure of 5000 kpa and are fitted with 30 kw, 4 pole speed, WEG electric motors driving the pump via a gear box.

Pump Systems Ltd have recently completed a sludge tank blending project with the installation of three ROTAMIX sludge tank mixing systems in a large wastewater treatment plant. The revolutionary sludge tank mixing system uses three dual sets of powerful floor mounted nozzles to mix a blend of WWTP sludge’s and solids up to 6% inside three 8 to 10 m diameter sludge tanks.

An interesting project recently completed at the Christchurch Wastewater Treatment Plant by Pump Systems Ltd was for the supply of four large Egger elbow propeller pumps to transfer return activated sludge (RAS) as part of a major upgrade project for the construction of four new clarifiers.