Danfoss enters industrial wastewater markets

The APP pumps are designed and built for Zero Liquid Discharge and Minimal Liquid Discharge (ZLD/MLD) industrial wastewater treatment

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The APP pumps are designed and built for ZLD/MLD industrial wastewater treatment

In response to the growing demand for energy efficient ZLD/MLD solutions, Danfoss has now released its first APP pumps targeted at large capacity industrial wastewater treatment plants. 

The APP pumps are designed and built for Zero Liquid Discharge and Minimal Liquid Discharge (ZLD/MLD) industrial wastewater treatment. The new APP W HC pumps deliver total efficiency rates of 90% at pressures up to 120 bar and can handle flow ranges from 11 to 24 m3/hour. They are made of Duplex stainless steel to provide maximum corrosion protection.

Jesper Bentzen, Sales Director, Danfoss, said, “For the last 15 years, our axial piston pumps have proved their efficiency in reverse osmosis desalination. We have applied this know-how to match the demands of ZLD/MLD.”

The ZLD/MLD APP pumps can be parallel-coupled to fulfill the required capacity at any time. If one of the pumps is out for maintenance, the remaining pumps automatically take over the full operation allowing the plant to run full speed around the clock. The APP W HC pumps deliver a constant flow no matter amounts and quality of the industrial wastewater.

The simple pump design with few parts allows easy installation, inspection and maintenance. Furthermore, the pump operates without oil to prevent contamination.

Set and forget

The APP W HC pumps deliver a constant flow no matter amounts and quality of the industrial wastewater.

“No matter the water quality, the APP pumps instantly adjust to ensure constant flow and efficiency in the ZLD/MLD processes. The operation is extremely easy, since changes in pressure impact neither flow nor efficiency”, explains Kevin Evald, Product Manager.

The simple pump design with few parts allows easy installation, inspection and maintenance. Furthermore, the pump operates without oil to prevent contamination.

Danfoss high pressure pumps for ZLD/MLD industrial wastewater treatment

At launch, the APP portfolio for ZLD/MLD industrial wastewater treatment comprises the following pump sizes:

  • APP W HC 15 with a flow range of 11-15 m3/h (48-66 gpm)
  • APP W HC 21 with a flow range of 11-21 m3/h (48-92 gpm)
  • APP W HC 24 with a flow range of 11-24 m3/h (48-106 gpm)

All pumps are approved for pressures up to 120 bar (1740 psi)

  • APP W HC benefits at a glance
  • World-class efficiency – up to 90% at all operation points
  • Substantial energy savings up to 75 % compared to traditional thermal evaporation systems
  • Made of first-class Duplex steel to prevent corrosion in aggressive environments
  • Easy scalability when coupled in parallel
  • Low complexity with few moving parts and few system components
  • Easy to operate and maintain
  • The pump is oil-free to avoid contamination