Danfoss highlights energy-efficient industrial wastewater treatment and seawater reverse osmosis solutions at Aquatech 2025
In 2025, the UN Environment Programme (UNEP) estimates that 1.8 billion people will likely face absolute water scarcity, and that two-thirds of the global population will experience water stress. High-pressure membrane processes such as seawater reverse osmosis (SWRO) for desalination, and water reuse applications, are crucial to addressing the world’s freshwater shortage. To ensure an adequate water supply while protecting the environment, the water industry must adopt energy-efficient technologies that make these water treatment processes environmentally and financially sustainable.
Danfoss is committed to making desalination and wastewater treatment processes more energy efficient. At Aquatech 2025, our experts will showcase our four core technologies for the water industry:
- High-pressure APP pumps optimized for land-based, off-shore and marine SWRO, as well as ZLD and brine concentration applications. The Danfoss booth will also feature the award-winning ceramic APP pump, recipient of the Water Technology Idol at the 2024 Global Water Summit, and the Miriam Balaban Award at Euromed 2024.
- iSave® energy recovery devices (ERDs) for high-pressure membrane applications. The iSave features an innovative 3-in-1 design that integrates a pressure exchanger, booster pump and motor. It recovers 94% of the high-pressure energy that would otherwise be wasted during the process, resulting in up to 60% energy savings for plant operators.
- AC Drives, including the VLT AQUA Drive for AC-motor-driven water and wastewater applications. These intelligent frequency converters can help you with condition-based maintenance. Including cavitation detection and warnings in case of imbalance, vibrations or a problem in the motor windings, with live-demo.
- Pressure sensors and fluid control devices, such as the DST P40I pressure transmitter made of Titanium and with ceramic pressure sensing element for desalination systems, seawater cooling and chemical processing.
These technologies combine into highly efficient, reliable water purification solutions that return energy savings of up to 65% compared to traditional centrifugal pump systems without ERDs and drives.
Energy-efficient water solutions for emergency situations
Danfoss will also showcase how its solutions are ideal for containerized SWRO plants that can provide fresh water in emergency situations. This unique combination of an APP high-pressure pump, iSave® ERD and VLT AQUA Drive can fit inside of a 40-ft container, offering a plug-and-play solution that authorities can quickly deploy.
Over the past 20 years, our pumps have become the standard for OEMs in the containerized reverse osmosis market sector, and we’ve supplied our products to hundreds of container systems around the world. Today, OEMs using our products can produce containers with a freshwater flow production of up to 3000 m3/day per container, with an efficiency around 2 kWh/m3. We look forward to demonstrating our products’ compactness, flexibility and reliability at this year’s Aquatech exhibition.
Meet our experts
Visit us in Hall 12, Stand #308
Aquatech Amsterdam
RAI Amsterdam
March 11-14, 2025
Learn more about our products
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The APP W HC pump is suitable for ZLD and MLD reverse osmosis applications used in industrial wastewater treatment.
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The range of high-pressure APP pumps is optimized for both landbased, off-shore and marine sea water reverse osmosis applications. Available with or without motor.
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The first active ERD for medium and large plants integrates highly effective isobaric pressure exchangers with a low-voltage motor to eliminate the risk of rotor overspin, reduce mixing and biofouling, and facilitate smarter automation. Covering train sizes from 1,500 m3/day and above.
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With a 3-in-1 design that integrates highly effective isobaric pressure exchangers with positive displacement booster pumps and electrical motors, iSave® ERDs deliver big energy savings in small spaces. Covering train sizes from 200-3,000 m3/day
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For use in corrosive environments and with aggressive media, Danfoss offers the robust DST P40I pressure transmitter made of Titanium and with ceramic pressure sensing element. DST P40I is optimized for use in applications such as desalination systems, seawater cooling, and chemical processing.
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MBS 3000 is designed for use in almost all industrial applications, and offers a reliable pressure measurement, even under harsh environmental conditions.
The flexible pressure transmitter programme covers all standard output signals. -
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The DST P140 pressure transmitter is dedicated for use in water pump and air compressor applications. It is designed to provide unrivaled reliability, durability, performance, and not least, digital possibilities.
DST P140, Smart sensor pressure transmitter for water and air applications.
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Heavy-duty temperature sensors for controlling cooling water, lubrication oil, hydraulic oil and refrigeration plants within general industry and marine applications. These temperature sensors are based on a standardized Pt 100 or Pt 1000 element, which gives a reliable and accurate measurement.
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VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.
