HOME >> BIOLOGY >> NEWS
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 (RO) membrane that promises to reduce the cost of seawater desalination and wastewater reclamation.

Reverse osmosis desalination uses extremely high pressure to force saline or polluted waters through the pores of a semi-permeable membrane. Water molecules under pressure pass through these pores, but salt ions and other impurities cannot, resulting in highly purified water.

The new membrane, developed by civil and environmental engineering assistant professor Eric Hoek and his research team, uses a uniquely cross-linked matrix of polymers and engineered nanoparticles designed to draw in water ions but repel nearly all contaminants. These new membranes are structured at the nanoscale (the width of human hair is approximately 100,000 nanometers) to create molecular tunnels through which water flows more easily than contaminants.

Unlike the current class of commercial RO membranes, which simply filter water through a dense polymer film, Hoek's membrane contains specially synthesized nanoparticles dispersed throughout the polymer -- known as a nanocomposite material.

"The nanoparticles are designed to attract water and are highly porous, soaking up water like a sponge, while repelling dissolved salts and other impurities," Hoek said. "The water-loving nanoparticles embedded in our membrane also repel organics and bacteria, which tend to clog up conventional membranes over time."

With these improvements, less energy is needed to pump water through the membranes. Because they repel particles that might ordinarily stick to the surface, the new membranes foul more slowly than conventional ones. The result is a water purification process that is just as effective as current methods but more energy efficient and potentially much less expensive. Initial tests suggest the new
'"/>

Contact: Melissa Abraham
mabraham@support.ucla.edu
310-206-0540
University of California - Los Angeles
6-Nov-2006


Page: 1 2 3

Related biology news :

1. Boston Univeristy bioengineers devise dimmer swith to regulate gene expression in mammal cells
2. Worlds top engineers in San Antonio for system of systems conference
3. New medications, cancer diagnosis goals of UH engineers with $1M in grants
4. EO Lawrence Award goes to 8 scientists and engineers
5. Carnegie Mellon engineers devise new process to improve energy efficiency of ethanol production
6. Pittsburgh-based team engineers muscle, bone cell differentiation with aid of ink-jet printer
7. NJIT women scientists and engineers use new information technologies to tackle isolation on campus
8. MIT engineers probe spiders polymer art
9. Yale biomedical engineers receive prestigious Early Career Awards
10. Physicians and engineers pool resources to prevent stroke
11. Pitt trains budding engineers to think green

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/2/2019)... (PRWEB) , ... April 30, 2019 , ... ... Nadel LLP is pleased to announce that Gunes Bender, Ph.D., a registered ... life sciences practice group. In his new role, Bender provides technical support and ...
(Date:4/27/2019)... ... April 26, 2019 , ... Strategic ... The Laboratory Analytical & Life Science Instrumentation Industry ," provides detailed information ... chromatography, life science instrumentation, mass spectrometry, molecular spectroscopy, atomic spectroscopy, surface science, ...
(Date:4/25/2019)... ... April 23, 2019 , ... In ... in the scientific literature. However, in many cases the magnitude of these deficits ... a particularly challenging population, given neurocognitive effects may impact developmental trajectories, and patients ...
Breaking Biology News(10 mins):
(Date:4/9/2019)... (PRWEB) , ... April 09, 2019 , ... The ... incoming members of the Society's leadership team, including a new addition to the presidential ... five of their peers to join the Society's leadership team for a three-year term ...
(Date:4/8/2019)... ... April 09, 2019 , ... ... non-profit research center Chan Zuckerberg Biohub (CZ Biohub) has chosen Geneious Biologics to ... is part of CZ Biohub’s efforts to establish new approaches to inform the ...
(Date:3/29/2019)... VIEW, Calif. (PRWEB) , ... March 28, 2019 ... ... achievement of development and testing milestones, CARB-X has proceeded with a second stage ... receive up to $1.7 million, which is on top of the $1.7 million ...
(Date:3/27/2019)... ... 2019 , ... Lachman is sponsoring the event on April 1-4, where they ... The executive team on site will be available to discuss strategies and tactics to ... this year. , Executives from Lachman participating at this year’s conference include Fran Zipp, ...
Breaking Biology Technology:
Cached News: