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Quenching of thirst in the world with off-grid water desalination

The first desalination plant in Europe, which was built in Spain nearly 50 years ago, was the world's first. Since then, new facilities have sprung up in water-stressed regions all over Europe, including the UK. Just a few years ago, the residents of the small Greek island of Ikaria were finally able to enjoy an abundant supply of safe drinking water, thanks to the construction of a new desalination plant on the island.

It is undeniable that desalinating water is becoming increasingly important. Once considered a problem only in Southern Europe, countries in the northern hemisphere, such as the Netherlands and Belgium, are now investing in desalination technology as well.

Over the past several decades, reverse osmosis has been the most widely used method of desalination (RO). However, RO desalination systems must be connected to the electrical grid in order to function. Not only is this expensive, but it is also inaccessible to people living in remote areas. Because of this, environmentally friendly off-grid desalination systems powered by renewable energy sources are essential.

The microbial desalination cells are introduced (MDCs). These use revolutionary technology developed by MIDES to produce safe drinking water from seawater using a low-energy, environmentally friendly process that is environmentally friendly. Therefore, electro-active bacteria desalinate and sterilize water, rendering it suitable and safe for consumption. According to Frank Rogalla, director of innovation and technology at Aqualia and a member of the project team, "This technology provides new options for providing clean water and wastewater treatment to small, isolated locations that do not have access to electrical power."

Desalination is now becoming a low-cost viable solution for water resources in many parts of the world, and it is putting an end to water scarcity as a result of the development of this innovative MDC technology. Rogalla stated that two prototypes are currently in operation (in the Spanish cities of Denia and Tenerife) in order to optimize the results and identify any opportunities for improvement in performance and cost efficiency. Furthermore, treated wastewater can be recycled in irrigation and agriculture, reducing the strain on existing resources.

How else can developing countries and remote island communities gain access to fresh water desalination systems that are not connected to the grid? Another possible solution can be found in the sea. Coastal regions and islands have access to an incredible and completely free source of energy – waves. Resolute Marine's chief operating officer and a member of the project team, Olivier Ceberio, believes that harnessing the power of ocean waves in conjunction with technology that can produce fresh water for many of the 2.1 billion people worldwide who struggle to access safe drinking water is the solution to this problem.

The Wave2OTM desalination system, developed by Ceberio and his colleagues as part of W20, is the world's first wave-driven desalination system that can be deployed quickly, operates completely off-grid, and provides large quantities of fresh water at a competitive price. There is no catch in this situation. The technology, according to Ceberio, "delivers free energy from a consistent and inexhaustible renewable energy source: ocean waves."

The magic is created by a Wave Energy Converter (WEC) that is attached to the seabed floor and moves back and forth with the waves to generate electricity. It then goes on to pressurize seawater that is sent to the shore, where it is used to directly drive a reverse-osmosis (RO) system. Without the use of any additional energy sources such as electricity, ocean waves can generate enough fresh water to meet all of the world's needs.

The amount of water produced on a daily basis can meet the needs of approximately 40,000 people. Island nations and coastal communities will be relieved to hear this news. Another advantage is the conversion of energy into electricity. In spite of the fact that we do not use electricity in our manufacturing process, we are able to divert a portion of the energy from the pressurized seawater into cogeneration electricity to power our own subsystems and pump fresh water where it is needed, as well as provide both water and electricity to our customers, according to Ceberio.

Currently, the Wave2O team is experimenting with a smaller-scale version of the technology at their facilities in Hingham, Massachusetts, in the United States. The team will proceed to a reduced scale Wave2O ocean deployment in PLOCAN, a test site facility on the Canary Islands, followed by a second ocean deployment at an operational commercial pilot in Cape Verde if the first goes well, the team said on Tuesday.

Take, for example, the country of Cape Verde. Extreme water scarcity affects the people who live on this group of islands off the coast of northern Africa's west coast. A diesel-electric desalination system provides 85 percent of the country's water supply, despite the fact that water costs in this country are among the highest in the world. It is in this location that this cutting-edge technology can produce water at a third of the cost while also providing access to a safe and dependable source of water.

Persistent water shortages can be a thing of the past in developing countries, remote communities, and island nations that have access to viable off-grid solutions that can provide them with clean drinking water.

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