Tag: Nanotechnology
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LG Chem wins brackish water business in California, US
LG Chem has entered the brackish water reverse osmosis (RO) market, winning contracts to supply its NanoH20 membranes from utilities in California, US.
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UT Austin develops hydrogels that desalt water with ambient sunlight
Researchers at the University of Texas at Austin, US, have developed a technology with gel-polymer hybrid materials that can desalinate water using ambient solar energy.
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Graphene oxide membranes: ‘In an ideal world we will take five years to scale up’
"If everything goes to plan, my expectation is that we will have graphene oxide membranes in large scale production within the next five years," says Rahul Nair, professor of materials physics and Royal Society university research fellow at the National Graphene Institute and School of Chemical Engineering and Analytical Science, at University of Manchester, UK.
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Q&A: Tim Harper, G20 Water Technologies
Former European Space Agency scientist Tim Harper, now chief executive of G2O Water Technologies, talks graphene-coated membranes
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California team develop new system for membrane distillation
Engineers at University of California, Riverside have developed a new carbon nanotube-based heating element that improves the recovery of water from brine in membrane distillation.
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UK researchers develop graphene membranes for desalination
Researchers at the National Graphene Institute, University of Manchester, UK, have developed a new graphene oxide membrane for desalination.
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Aquaporin-embedded membranes to fight water scarcity
Biomimetics – nature-inspired innovation – is one of the emerging technologies racing to become the first to effectively bring down the energy costs of desalination. Several groups and companies around the world are working on copying nature s method of transporting pure water across a membrane. One of them is Denmark-based Danfoss AquaZ A/S and…
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Leveraging nanotechnology for next generation seawater desalination
NanoH2O advanced membranes for reverse osmosis (RO) desalination represent a new material that enhances current polymer-based membranes with the benefits of nanotechnology. These nanocomposite RO membranes represent a step-change in productivity through improved permeability while maintaining requisite salt and contaminant rejection. Since the original publication of this concept, further development and optimization of this membrane…
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Boron nitride nanotube membranes outstrip carbon copies
One approach to improve the desalination process would be to design a more efficient membrane. Embedding nanotubes in the membrane is one area of research. Investigation of water transport through nanotubes in the past has primarily focused on carbon nanotubes, where the water has been found to flow extraordinarily fast in addition to rejecting salt…
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Small-scale desalination approach to a big water problem
A research project recently undertaken at the Massachusetts Institute of Technology has revealed a new mechanism for desalination/purification of water, employing a microfluidic channel-network system, which could lead to the development of small and portable units. The authors have started to build a prototype device in the laboratory in order to demonstrate the necessary scale-up…