Researchers from the University of Alicante’s research group in applied electrochemistry and electrocatalysis have developed a stand-alone system for desalinating and treating water through electrodialysis. The system is directly powered by solar energy and can be applied in off-grid areas.
Designed only for desalinating water, this is a sustainable, eco-friendly technology, as its energy is supplied by solar photovoltaic panels in a CO2-free process, thus not contributing to climate change.
According to research group director Vicente Montiel, “the new system requires no batteries and has none of the economic and environmental costs involved in managing empty batteries. Furthermore, it can be adapted and applied for treating water of many different origins, such as seawater, wells containing brackish water, treatment plants, industrial processes, etc., which makes it particularly well-suited to remote, off-grid areas”. In this sense, this equipment can be employed to obtain clean water for human consumption, irrigation, street cleaning and others, both when there is no energy grid available and after natural disasters, such as earthquakes, floods or fires.
Montiel also points out that “the technology we designed can be a potential solution to drought, just like osmosis plants”.
The research group already has a pilot and demonstration plant able to generate a cubic metre of drinking water every day. They are looking for companies interested in the commercial exploitation of the technology through licence and/or technical cooperation agreements.
“This is not a new technique, as in the Canaries electrodialysis has been employed for many years for desalination purposes”, Montiel says. “What is new about this UA-developed technology is that all electricity supplied to this system comes from a photovoltaic solar field”.
More specifically, this technique “can only be employed to treat water with a salt content exceeding that tolerated for human consumption or irrigation. If the water has other problems, for instance the presence of organic matter, this technology cannot be applied”.
A byproduct of all desalination processes is a certain amount of water which, despite the treatment, is unfit for human consumption or irrigation, as its salt concentration is much higher than it was before treatment, commonly known as “reject water”. The director of the group in applied electrochemistry and electrocatalysis states, however, that “with the UA-designed system, it is possible, for instance, to regulate reject water salinity so that it is similar to seawater salinity”.
Among other advantages, this new technology makes it possible to recover approximately 80% or 90% of all treated water. Besides, it makes the most of the maximum energy supplied by panels when exposed to sunlight, and its availability is also high, as it enables treated water accumulation for periods in which renewable sources do not provide enough energy.
The Latest on: Desalination
- Water Desalination Equipment Market to Exhibit Impressive Growth During 2017-2027 on November 12, 2018 at 3:31 am
Key players and manufacturers in water desalination equipment market are making heavy investments in R&D for enhancing efficiency and reducing energy consumption, thereby driving demand and supply for ... […]
- A carbon neutral solution for desalination? Maybe so by tapping into geothermal on November 12, 2018 at 1:10 am
Diagram of how the geothermal energy would be used for energy production, and two types of desalination (MED and AD). Red lines indicate hot water, while blue lines are cooled water. At the end of the ... […]
- Saudi Arabia to build solar-powered desalination plant on November 11, 2018 at 3:25 am
Saudi Arabia is building a solar-powered desalination plant using adsoprtion technology, in one of seven strategic projects that include the nation's first nuclear research reactor. A symbolic foundat... […]
- Seven bidders up for Taweelah desalination project in Abu Dhabi on November 11, 2018 at 3:25 am
Abu Dhabi Department of Energy has unveiled the seven consortia bidding for Taweela desalination plant mega-project, with the lowest price coming from ACWA Power at $0.49 per cube. The authority, into ... […]
- Company hopes to build seawater desalination plant along coast; Port Aransas mayor not convinced on November 8, 2018 at 3:53 pm
PORT ARANSAS, Texas - Desalination water plants are not new to Texas. In fact, the state has 46 desalination plants that convert brackish water to useable water for cities, according to the Texas Wate... […]
- A carbon neutral solution for desalination? on November 6, 2018 at 8:49 pm
Water shortages are hitting some areas of the world hard, and with increasing global temperatures, more regions may be experiencing drought conditions. Countries such as Saudi Arabia rely on desalinat... […]
- MRPL reasserts its green credentials with Karnataka's first desalination plant on November 6, 2018 at 8:42 pm
MANGALURU: Come March 2020, Mangalore Refinery and Petrochemicals Ltd (MRPL) will reassert its green credentials by commissioning Karnataka’s first desalination plant. Work on the Rs 600 crore ... […]
- Three directors on West Basin water board face re-election today, as decision on controversial desalination plant looms on November 6, 2018 at 6:00 am
Three directors for the West Basin Municipal Water District are asking voters to give them new four-year terms when they go to the polls today, Nov. 6, with a vote on a controversial $380 million desa... […]
- Is desalination the Sea of Galilee's savior? on November 6, 2018 at 12:00 am
Overpumping and drough have drastically diminished the major biblical landmark, causing the River Jordan and Dead Sea to be starved of water. Overpumping and drough have drastically diminished the maj... […]
- Israel sees desalination as Sea of Galilee's savior on November 5, 2018 at 4:20 am
DEGANIA DAM, Israel (Reuters) - Some 2,000 years ago, Jesus walked across the Sea of Galilee, according to the Bible. Today, that doesn’t require a miracle. Long periods of drought and over-pumping ha... […]
via Google News and Bing News