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Battery technology could charge up water desalination
The technology that charges batteries for electronic devices could provide fresh water from salty seas, says a new study by University of Illinois engineers. Electricity running through a salt water-filled battery draws the salt ions out of the water. (2016-02-04)

Groundwater from coastal aquifers is a better source for desalination than seawater
Saline groundwater results from seawater intrusion into coastal aquifers, shifting the fresh-saline water interface upward and landward, and replaces fresh groundwater with saline groundwater. The RO process in coastal aquifers will be helpful in restraining seawater intrusion. Other saline groundwater benefits include consistent annual water temperatures, and lower levels of dissolved oxygen, silt density and phytoplankton. The RO desalination process of seawater requires significant energy and large plant area by valuable shorefront property, both of which increase the product water cost. (2016-03-02)

Researchers develop better membranes for water treatment, drug delivery
Researchers at the University of Illinois have developed a new generation of biomimetic membranes for water treatment and drug delivery. The highly permeable and selective membranes are based on the incorporation of the functional water channel protein Aquaporin Z into a novel A-B-A triblock copolymer. (2007-11-29)

UCLA engineers develop revolutionary nanotech water desalination membrane
Researchers at the UCLA Henry Samueli School of Engineering and Applied Science today announced they have developed a new reverse osmosis membrane that promises to reduce the cost of seawater desalination and wastewater reclamation. (2006-11-06)

The Marangoni Effect can be used to obtain freshwater from the sea
A study conducted at the Politecnico di Torino, in collaboration with the Massachusetts Institute of Technology (MIT), and published in the journal Energy and Environmental Science, presents a solar desalination device capable of spontaneously removing the accumulated salt. In the future, this discovery could lead to the development of sustainable desalination systems with stable efficiencies over time (2020-10-08)

Desalination breakthrough could lead to cheaper water filtration
Producing clean water at a lower cost could be on the horizon after researchers from The University of Texas at Austin and Penn State solved a complex problem that has baffled scientists for decades, until now. (2020-12-31)

Quantum destabilization of a water sandwich
When a thin layer of water is squeezed between two hydrophobic surfaces, the laws of classical physics break down. (2019-09-24)

New approach to water desalination
A new approach to desalination being developed by researchers at MIT and in Korea could lead to small, portable desalination units that could be powered by solar cells or batteries and could deliver enough fresh water to supply the needs of a family or small village. As an added bonus, the system would also remove many contaminants, viruses and bacteria at the same time. (2010-03-23)

Nanopores could take the salt out of seawater
University of Illinois engineers have found an energy-efficient material for removing salt from seawater that could provide a rebuttal to poet Samuel Taylor Coleridge's lament, 'Water, water, every where, nor any drop to drink.' (2015-11-11)

Desalination can boost US water supplies, but environmental research needed
Recent advances in technology have made removing salt from seawater and groundwater a realistic option for increasing water supplies in some parts of the US, and desalination will likely have a niche in meeting the nation's future water needs, says a new report from the National Research Council. (2008-04-24)

Controlling the nanoscale structure of membranes is key for clean water, researchers find
A desalination membrane acts as a filter for salty water: push the water through the membrane, get clean water suitable for agriculture, energy production and even drinking. The process seems simple enough, but it contains complex intricacies that have baffled scientists for decades -- until now. Researchers from Penn State, The University of Texas at Austin, Iowa State University, Dow Chemical Company and DuPont Water Solutions published a key finding in understanding how membranes actually filter minerals from water, online today (Dec. 31) in Science. (2020-12-31)

Toward efficient high-pressure desalination
One of the biggest operational challenges for desalination plants is the fouling of membranes by microbes. New research from MIT suggests a novel approach to reducing the rate of fouling, and thus improving desalination plant efficiency. (2017-10-16)

Sandia, task force to study ways ocean and wastewater can be desalinized in California
Researchers from the National Nuclear Security Administration's Sandia National Laboratories, together with fellow members of the Joint Water Reuse & Desalination Task Force, in coming months will be studying the best ways to desalinize - and make potable - ocean water, subsurface brines, and wastewater. (2005-09-06)

Highly functional membrane developed for producing freshwater from seawater
Researchers at Kobe University's Research Center for Membrane and Film Technology have successfully developed a new desalination membrane by laminating a two-dimensional carbon material on to the surface of a porous polymer membrane. This membrane has the potential to perform highly efficient desalination because it is possible to control the gaps between its nanosheets and the charge on the nanosheets' surfaces. It is hoped that this research will contribute towards the implementation of futuristic desalination membranes. (2021-01-21)

Saltwater solution to save crops
Technology under development at the University of New South Wales could offer new hope to farmers in drought-affected and marginal areas by enabling crops to grow using salty groundwater. (2008-09-11)

Using a form of 'ice that burns' to make potable water from oil and gas production
In the midst of an intensifying global water crisis, scientists are reporting development of a more economical way to use one form of the (2013-08-28)

A carbon neutral solution for desalination? Maybe so by tapping into geothermal
Water shortages are hitting some areas of the world hard, and with increasing global temperatures, more regions may be experiencing drought conditions. (2018-11-03)

Bio-inspired materials decrease drag for liquids
Tiny nature-inspired cavities that trap air can stop liquids from sticking to surfaces without the need for coatings. (2018-09-06)

Can engineered carbon nanotubes help to avert our water crisis?
Carbon nanotube membranes have a bright future in addressing the world's growing need to purify water from the sea, researchers say in a study published in the journal Desalination. (2015-03-17)

Hot mist strips salt from the sea
An American company has developed portable units that can turn seawater into fresh water at around a third of the cost of conventional desalination. It promises affordable clean water for many poor countries facing the problem of salinity in their water. (2003-07-09)

NJIT professor awarded patent today for new desalination devices, more
NJIT Distinguished Professor of Chemical Engineering Kamalesh K. Sirkar was awarded a patent today for his water desalination technology. (2012-05-01)

Study: Why lab researchers should talk with industry counterparts
An MIT team has found both obstacles and lessons from the process of getting a novel membrane for chemical processing out of the lab into the commercial world. (2017-10-05)

Solar heat could make power + water for Namibia: Study
Seawater desalination can be integrated into a solar thermal energy plant using a variety of desalination technologies. Is solar-driven multi-effect distillation a financially feasible solution for water-stressed Namibia? (2018-01-28)

Desalination technology increases naval capabilities
The next generation of technology to turn saltwater into a fresh resource is on tap for the Navy. The Office of Naval Research is sponsoring the development of an innovative solution for generating potable water at twice the efficiency of current production for forces afloat, Marine Corps expeditionary forces and humanitarian missions ashore. (2009-09-24)

Researchers make headway in desalination technology
Engineers at the University of Illinois have taken a step forward in developing a saltwater desalination process that is potentially cheaper than reverse osmosis and borrows from battery technology. In their study, the researchers are focusing on new materials that could make desalination of brackish waters economically desirable and energy efficient. (2017-10-12)

From seawater to freshwater with a nanotechnology filter
In this month's Physics World, Jason Reese, Weir Professor of Thermodynamics and Fluid Mechanics at the University of Strathclyde, describes the role that carbon nanotubes could play in the desalination of water, providing a possible solution to the problem of the world's ever-growing population demanding more and more fresh drinking water. (2011-05-31)

Seawater turns into freshwater through solar energy: A new low-cost technology
A study conducted at Politecnico di Torino and published by the journal Nature Sustainability promotes an innovative and low-cost technology to turn seawater into drinking water, thanks to the use of solar energy alone. In the future, this innovation could have a positive impact on the quality of life in regions affected by drinking water scarcity. (2019-01-07)

Water purification breakthrough uses sunlight and 'hydrogels'
Engineers at the University of Texas at Austin, have created a low-cost, clean and safe water purification device using only natural levels of sunlight and inexpensive gel technology which could be used by communities in drought-affected areas or victims of natural disasters with limited access to clean water. (2018-04-02)

NJIT prof offers new desalination process using carbon nanotubes
A faster, better and cheaper desalination process enhanced by carbon nanotubes has been developed by NJIT Professor Somenath Mitra. The process creates a unique new architecture for the membrane distillation process by immobilizing carbon nanotubes in the membrane pores. Conventional approaches to desalination are thermal distillation and reverse osmosis. (2011-03-14)

Purification on the cheap
System developed at MIT cleans 'produced water' from natural gas wells, could lead to improved desalination plants for developing countries. (2013-02-05)

Wastewater produces electricity and desalinates water
A process that cleans wastewater and generates electricity can also remove 90 percent of salt from brackish water or seawater, according to an international team of researchers from China and the US. (2009-08-06)

Radical desalination approach may disrupt the water industry
Columbia Engineering researchers report that they have developed a radically different desalination approach--''temperature swing solvent extraction (TSSE)''--for hypersaline brines. Their study demonstrates that TSSE can desalinate very high-salinity brines, up to seven times the concentration of seawater. Says PI Ngai Yin Yip, ''Our results show that TSSE could be a disruptive technology--it's effective, efficient, scalable, and can be sustainably powered.'' (2019-05-06)

Salinity in Outer Banks wells traced to fossil seawater
Rising salinity in the primary source for desalinated tap water in North Carolina's Outer Banks has been traced to fossil seawater, not -- as some have feared -- to recent seawater intrusion. (2011-05-12)

Ben-Gurion U. researchers successfully test solar desalination system for arid land agriculture
The solar-powered system uses nanofiltration membranes to treat the local brackish water, resulting in high-quality desalinated irrigation water. The results of the Josefowitz Oasis Project indicate that irrigation with desalinated water yields higher productivity from water and inorganic fertilizers compared with current practices. Crops grown with desalinated water required 25 percent less irrigation and fertilizer than brackish water irrigation. (2012-05-24)

Solar-driven membrane distillation technology that can double drinking water production
A joint research team from the Korea Institute of Science and Technology (KIST), led by Dr. Kyung-guen Song from the KIST Water Cycle Research Center and Dr. Won-jun Choi from the KIST Center for Opto-Electronic Materials and Devices, announced that it had used solar heat, a source of renewable energy, to develop a highly efficient membrane distillation technology that can produce drinking water from seawater or wastewater. (2020-07-22)

$6 million appropriation to focus Sandia research on drinking water desalination, removal of arsenic
Research in the areas of desalination and removal of arsenic in water will step up at the National Nuclear Security Administration's Sandia National Laboratories over the next few years, the result of a $6 million allocation in the FY2004 federal Energy and Water Development Appropriations bill. (2004-06-28)

Lower Rio Grande Basin study shows shortfall in future water supply
Reclamation released the Lower Rio Grande Basin Study that evaluated the impacts of climate change on water demand and supply imbalances along the Rio Grande from Fort Quitman, Tex., to the Gulf of Mexico. As a result of climate change, a projected 86,438 acre-feet of water per year will need to be added to the 592,084 acre-feet per year of supply shortfall predicted in the existing regional planning process in 2060. (2013-12-17)

UN warns of rising levels of toxic brine as desalination plants meet growing water needs
A fast-rising number of desalination plants (~16,000, with capacity concentrated in the Middle East / North Africa) quench a growing thirst for freshwater but also create a salty dilemma: how to deal with the chemical-laden leftover brine. In a new analysis, UN experts say that for every litre of freshwater, desalination plants produce on average 1.5 litres of brine (though values vary dramatically by plant). Globally, 142 million cubic meters of brine is discharged daily. (2019-01-14)

How clean water technologies could get a boost from X-ray synchrotrons
In a new perspective, SLAC and University of Paderborn scientists argue that research at synchrotrons could help improve water-purifying materials in ways that might not otherwise be possible. (2020-07-28)

Illinois lands research center for advanced water purification
The University of Illinois at Urbana-Champaign has received a grant from the National Science Foundation to create a science and technology center to develop advanced materials and technologies for water purification. (2002-09-20)

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