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:11/6/2018)... FRANCISCO (PRWEB) , ... November 06, 2018 , ... uBiome, ... of Biochemistry and Biophysics at the University of California, San Francisco (UCSF) and Co-President ... as a scientific adviser to uBiome since 2013, and we are honored that he ...
(Date:11/3/2018)... ... November 01, 2018 , ... Emerging Trends ... and New Opportunities, **Presented by FDAnews**, Dec. 6, 2018 – Kleinfeld, Kaplan & ... bird pricing for Emerging Trends in Medical Device Regulation and Quality ends on ...
(Date:11/3/2018)... , ... November 01, 2018 , ... ... the morphology, physiology and pathology of the human dental pulp and periradicular tissues. ... of the human teeth, but, over the last decade, non-destructive, high-resolution micro-CT 3D ...
Breaking Biology News(10 mins):
(Date:11/5/2018)... ... November 05, 2018 , ... ... support for healthcare professionals through its website, http://www.glycomark.com , as part of ... chat and video option via the website in November from 9 a.m. – ...
(Date:11/3/2018)... ... November 01, 2018 , ... Come to Princeton ... Mulinde, Senior Advisor, Division of Clinical Compliance Evaluation, CDER, FDA will be presenting ... reliability. , What should clinical research industry stakeholders keep in mind when implementing ...
(Date:10/31/2018)... ... 30, 2018 , ... Rooam , the premier payment platform for the ... After its acquisition of the Tally payment app, the leading payment platform in Chicago ... will grow its market share and increase the number of restaurant and bar locations ...
(Date:10/31/2018)... ... 30, 2018 , ... Pippa Rose is a young Labrador retriever. Like most labs, Pippa ... a partial tear to the cruciate ligament in her right knee. According to her ... Kinsley reported that it broke her heart to see Pippa lie around in pain ...
Breaking Biology Technology:
Cached News: