Seawater makes it easy to swallow.
Researchers in the United States and South Korea have developed a membrane. The cost of filtering the salt. seawater. Polysulfone new materials that are resistant to chlorine treatment. – Remove the need for some of the desalination process processing costs.
The most common desalination process,. reverse osmosis, seawater forced through the semi-permeable membranes to filter salt. While many are run like a large plant. desalination equipment they will add fresh water. – And more than 1 billion people worldwide do not have access to safe and clean water.
One deficiency of the membranes desalination is time for them to become blocked by the growth of bacteria or. biofilms algae. add chlorine kills microbes in water. – But also destroy the polyamide-based. membranes. Therefore, chlorine is normal. From the water before you send through the membrane, and then add a new post.
New pulp by heart. polysulfone promise to process complexity and unnecessary costs. 'Polysulfone has better resistance to chlorine. Because the main chain consists of aromatic polyamides. Carbon cycle and strong, sulfur and oxygen bonds. 'Explains Ho Park the bottom of the team. University of Ulsan, South Korea. 'There is no link. amide the key to attack by chlorine water. '.
Polysulfones be used for desalination. But water does not flow through them as well. The remedied by changing the way the polymer is made. Benny people independent of the other teams at the University of Texas. Austin said. 'Before, added the sulfone. Polymer hydrophilic added after polymerisation -. Placed on the site safely. However, we included these. When monomer polymerisation. Place them directly into the building structure. '.
Polymer new patented by an independent team and people expect to start searching for trade within three years.
'High chlorine-membranes. Patient can remove the processes and costs increased significance of. membranes used in desalination 'Ian Lomax, managing large projects. Dow Solutions said water.
Nature. Solving.
However, more work is needed if membrane-desalination. Used to solve water scarcity around the world. With power to the water pressure gradient in concentration. osmosis reverse, running large scale membrane plant. desalination as too expensive for many developing countries. (Most are building desalination plants next to coastal power plants, the benefits of excess energy and heat loss). Advantage of richer countries, too. desalination to be hard to leave fossils of. Fuel, power hungry inefficient processes.
Membrane efficiency is key to reducing costs. desalination and the impact of fossil fuels,. Thomas Meyer said that work. Sandia National Laboratories in Albuquerque, USA. Meyer team plans to achieve this by simulating the natural system. 'Kidneys human use, such as membranes that can filter salt around. 100 times more effective than. synthetic membranes' he said. that if we can repeat this performance will be more. '.
If membrane performance was good enough. membranes desalination may even include a human powered systems such as filters. 'LifeStraw' developed by Vestergaard Frandsen. This simple device with microbes from the membrane and water running in the power of the human vacuum. – Although company spokesperson said. Chemistry World has plans to develop a tube. desalination in the future is.
How the current system. reverse osmosis of the most powerful performance. desalination on a large, but this update is also made in the performance of other technologies such as thermal distillation or evaporation,. Dow's Lomax added, so membrane processes. Competitive.
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