Desalination

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Drinking water - Desalination solutions - Danfoss

Sustainable desalination with maximum energy efficiency

According to the UN, water scarcity is one of the major challenges facing the world today and tomorrow. The need to find sustainable solutions for new freshwater supplies is urgent; solutions that take the straight road from saline to fresh water at low cost and with minimum impact on climate and nature.

Due to its high energy efficiency and reliability, Sea Water Reverse Osmosis (SWRO) is one of the most sustainable and cost effective solutions for converting sea water to potable fresh water. At the same time, SWRO technology undergoes rapid development to improve energy efficiency and support large-scale freshwater production.

Features and benefits

Extremely low energy consumption

Ultra-low maintenance costs

Simple to operate

Minimal service and long service intervals

Small footprint but effective, compact and light in weight

Reverse Osmosis (SWRO)

Sea Water Reverse Osmosis may hold the key to prevent a global water crisis, but it requires powerful technology to be viable on a global scale.

Our four core technologies work together to make SWRO efficient and environmentally friendly.  

Danfoss takes lead in SWRO innovation

Danfoss is committed to supporting the sustainable desalination industry with energy efficient SWRO solutions. The product offering includes four core technologies, comprising high-pressure pumps, AC drives, energy recovery devices and pressure and fluid control devices. These combine into highly efficient and lasting water purification solutions that return energy savings of up to 65% compared to traditional centrifugal pump systems without energy recovery devices and drives.

By land, by sea - anywhere

At large scale, reverse osmosis plants are capable of providing freshwater to entire cities while compact solutions are ideal for supplying hotels and resorts, ships, and offshore facilities with clean water.

Desalination of salt water - Danfoss

Today’s challenge – Tomorrow’s opportunity

Water is vital for life. Shortage of fresh water has spurred innovation to find efficient and climate-friendly solutions that turn seawater into fresh, clean water.

Reverse osmosis is the leading technology. It is simple, reliable and requires less energy than other desalination techniques.

Desalination system by Danfoss

Creating a sustainable future with seawater

65% savings on your desalination systems with Danfoss high-pressure pumps, Danfoss pressure transmitters, Danfoss drives and Danfoss energy-recovery devices (iSave) compared to desalination plants with centrifugal pumps and without energy-recovery devices and drives.

Acciona modular desalination plant - Danfoss

Acciona and Danfoss create innovative SWRO

Technologically advanced solutions allowed Acciona to create an innovative sea water reverse osmosis (SWRO) modular desalination plant for the Sarlux refinery in Sardinia, Italy, reducing energy consumption compared to traditional solutions.

Related products

  • VLT® AQUA Drive FC 202
    VLT® AQUA Drive FC 202

    VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.

  • iSave energy recovery device - Danfoss
    Energy recovery devices for reverse osmosis applications

    The 3-in-1 Energy Recovery Device (ERD) optimized for sea water reverse osmosis applications.

  • APP high-pressure pumps - Danfoss
    High-pressure pumps for desalination reverse osmosis applications

    High-pressure pumps for land based, off-shore and marine desalination reverse osmosis applications

  • DST P40I pressure transmitter
    DST P40I titanium pressure transmitter for harsh environments

    For use in corrosive environments, Danfoss offers the new 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.

Case studies

  • Suez chooses oil-free Danfoss APP pump to power Bahamian RO plant retrofit

    For a resort in Bahamas APP pump and iSave ERD were selected to supply fresh water. Both components are well-known for long service intervals, high reliability and energy efficiency. They eliminate risk of oil contamination on the plant site, as they use the pumped medium for lubrication.

  • Seawater
    Creating a sustainable future with seawater

    Over the past decade, the use of Sea Water Reverse Osmosis (SWRO) for desalination has taken off. With proven efficiency rates up to 92% and energy savings of up to 65% compared to traditional solutions, the opportunities of SWRO technologies deserve further exploration.

  • Gran Canaria Canaragua  | Danfoss
    Canaragua uses Danfoss pumps and ERDs for ultra-compact RO plant in Gran Canaria

    Even though Canaragua has installed dozens of SWRO plants throughout the Canary Islands, the project in Puerto de Mogán was unusual because of the focus on compactness. The municipality needed to expand water production, and the best place to locate the new plant was in the middle of the historic town right off the main square.

  • Sarlux refinery saves energy with 12000 m3/day industrial desalination plant
    Sarlux refinery saves energy with 12000 m3/day industrial desalination plant

    Danfoss solutions enabled Acciona to create an innovative sea water reverse osmosis (SWRO) modular desalination plant for the Sarlux refinery in Sardinia, reducing energy consumption compared to traditional solutions.

  • Danfoss APP pump has produced fresh water for a decade without any maintenance
    Danfoss APP pump has produced fresh water for a decade without any maintenance

    Low maintenance costs alongside very low energy costs have resulted in extremely competitive total costs of ownership for the entire RO plant

  • Get more with less by retrofitting reciprocal pumps with danfoss APP pumps Danfoss
    Get more with less by retrofitting reciprocal pumps with Danfoss APP pumps

    Simplified maintenance, high energy cost savings and low TCO are keeping fresh water flowing 24/7 - those are the advantages a luxury resort in Cabo San Lucas has achieved by retrofitting a reciprocating pump with the Danfoss APP pump.

Articles

  • Fresh water fountains with pd pumps danfoss
    Cost-effective water supplies with pd pumps

    The scarcity of fresh water resources and the need for additional water supplies is critical in many regions of the world and will be increasingly important in the future. The UN has made availability of water and sanitation for all, one of the Global Development Goals.

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