Pumping Polyelectrolyte in waste water treatment

The Challenge An industrial waste water treatment company required a cost effective solution to pumping polyelectrolyte. The plant engineers approached Verderflex distributor, Global Pumps Australia, for a solution to the following problems: - Existing helical rotor pumps were expensive to run and maintain - The replacement pump would have to be able to transfer liquid polymer which is a thick, viscous liquid mixed with a 30% kerosene (hydrocarbon) carrier. - The pump had to be compatible with the client’s existing system - The hose would have to last a minimum of 3 months. Solution Global Pumps analysed the customer's current systems and the Verderflex Peristaltic Dura Hose Pump was selected for the following reasons: • Peristaltic pumps have a low shear operation ideal for shear sensitive products like polymers • Has the ability to handle viscous liquids • Has a good metering/dosing capability with ±5% accuracy • Is easy to service with only one wearing part, the hose, when compared to a helical rotor which has a stator, rotor, mechanical seal and more • The Dura provided longer hose life than conventional hose pumps Result Verderflex’s Dura Hose Pump has now been installed for more than 1 year. The customer has reduced their process downtime, improved their operational efficiency and reduced the overall maintenance cost after moving to peristaltic pumping technology.

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