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.
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 202 controls all types of pumps and comes equipped with a cascade controller.
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The 3-in-1 Energy Recovery Device (ERD) optimized for sea water reverse osmosis applications.
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High-pressure pumps for land based, off-shore and marine desalination reverse osmosis applications
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For use in corrosive environments and with aggresive 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.
Case stories
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Compact and energy efficient pump from Danfoss replaces obsolete centrifugal pump. After 20,000 hours no maintenance has been needed and energy costs are reduced by 20%.
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A three-train system based on APP pumps and iSave energy recovery devices from Danfoss delivers 35,000 hours trouble-free production for a new resort in Egypt.
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For a recent major upgrade to its La Rosière desalination plant, Jersey Water chose VLT® AQUA Drive from Danfoss. With dedicated water-industry functionality, this drive provides outstanding harmonic performance and high efficiency.
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Compact, reliable and energy efficient pumps and ERDs from Danfoss are chosen as key components for SWRO plant producing fresh water for a multi-island resort complex in the Maldives.
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In addition to a fast design and installation, the customer's needs for energy efficient solutions were met by using pumps and energy recovery devices from Danfoss.
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A reduction of 57% on the energy consumption was achieved by retrofitting with Danfoss pump and iSave ERD.
Articles
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Seawater reverse osmosis (SWRO) is growing worldwide to bridge the gap between increased demand and climate-driven water scarcity. However, compared to other sources such as ground and surface water, fresh water from SWRO is relatively expensive.
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As Europe tackles the dual challenges of climate change and water scarcity, the transition from low-efficiency desalination to high-efficiency seawater reverse osmosis (SWRO) technology should be considered part of the European Green Deal.
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The world needs more fresh water than ever before to keep up with its growing population and economic development. At the same time, climate change is exacerbating extreme weather events – and making water scarcity increasingly problematical around the globe.
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Although just one percent of worldwide water consumption currently derives from desalinated seawater, desalination is responsible for an outsized share of water treatment’s global energy usage.
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As we’ll see, thermal distillation, though still used today, is just the first generation of technologies adapted and developed to desalinate water. In terms of energy intensity, much has happened since Aristotle walked the shores of ancient Greece.
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Our blog explores issues related to energy and cost efficiency in seawater reverse osmosis (SWRO). We’re investigating more topics and adding new blogs regularly.
Contact us
For further information, please contact us.