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
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.
Today, 1% of the global water supplies come from desalination. The share of desalination is expected to grow significantly.
The past five years have seen a 57% increase in desalination plant capacity.
Optimized technologies combined with salt water reversed osmosis experience can increase energy efficiency by up to 65%
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.
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.
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 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
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VLT® AQUA Drive FC 202VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.
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Energy recovery devices for reverse osmosis applications
The 3-in-1 Energy Recovery Device (ERD) optimized for sea water reverse osmosis applications.
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High-pressure pumps for desalination reverse osmosis applications
High-pressure pumps for land based, off-shore and marine desalination reverse osmosis applications
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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
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Danfoss technology reduces energy consumption in salmon industry with 50%
Energy efficient pumps and energy recovery devices help the Norwegian aquaculture industry to remove sea lice from salmon gently, sustainable, and effectively.
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Small footprint and reliability bring Danfoss pumps aboard submarine
APP and PAHT pump technologies supply the Royal Navy’s submarine with ultra-pure water for all water operations on-board.
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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.
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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.
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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.
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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.
Articles
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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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Making the case for positive displacement pumps in SWRO
Large-flow positive displacement pumps are entering the market with potential to bring down energy consumption by 20%
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