Verderflex:Pumping Polyelectrolyte in Wastewater Treatment

09.05.2014

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.

The problem:

  • 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.

Picture: Durapump (Image: Verderflex)

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To accommodate it, extensive caverns were created inside the Alpine massif itself, following major excavation work which took five years to complete. Since then, Zermatt, also known as a “tourist magnet” at the foot of the Matterhorn in the Swiss canton of Valais, has been cleaning its wastewater subterraneously, behind closed doors. Inside the caverns, AERZEN blower technology provides adequate ventilation of the filter lines and activation.

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