Navigation Links
New chlorine-tolerant, desalination membrane hopes to boost access to clean water
Date:7/22/2008

AUSTIN, TexasA chemical engineering professor at The University of Texas at Austin is part of a team that has developed a chlorine-tolerant membrane that should simplify the water desalination process, increasing access to fresh water and possibly reducing greenhouse gases.

"If we make the desalination process more efficient with better membranes, it will be less expensive to desalinate a gallon of water, which will expand the availability of clean water around the world," Professor Benny Freeman says.

The research will be published July 28 in the German Chemical Society's journal Angewandte Chemie.

Freeman worked primarily with James E. McGrath of Virginia Tech University and Ho Bum Park of the University of Ulsan in South Korea for more than three years to develop the chlorine-tolerant membrane made of sulfonated copolymers. A patent has been filed.

Chlorine must be added to water to disinfect it to prevent a biofilm (stemming from biological contaminants in the raw water) from forming on the membrane, which would reduce its performance. It is then de-chlorinated prior to sending it through the currently used polyamide membranes, which don't tolerate chlorinated water.

"It promises to eliminate de-chlorination steps that are required currently to protect membranes from attack by chlorine in water," Freeman says. "We believe that even a small increase in efficiency should result in large cost savings."

The development could also have a direct impact on reducing carbon-dioxide emissions, which contribute to global warming.

"Energy and water are inherently connected," Freeman says. "You need water to generate power (cooling water for electric power generation stations) and generation of pure water requires energy to separate the salt from the water. That energy is often generated from the burning of fossil fuels, which leads inevitably to the generation of carbon dioxide. Therefore, if one can make desalination more energy-efficient by developing better membranes, such as those that we are working on, one could reduce the carbon footprint required to produce pure water."

Freeman says McGrath and his research group developed novel materials based on an entirely different platform of membranes than those used today in desalination membranes. These new materials are extremely tolerant to aqueous chlorine so their performance doesn't deteriorate in the presence of chlorine.

"Basically, Dr. McGrath radically changed the chemical composition of the membranes, relative to what is used commercially, and the new membranes do not have chemical linkages in them that are sensitive to attack by chlorine," says Freeman, who holds the Kenneth A. Kobe Professorship in Chemical Engineering and the Paul D. & Betty Robertson Meek & American Petrofina Foundation Centennial Professorship in Chemical Engineering.


'/>"/>

Contact: Benny Freeman
freeman@che.utexas.edu
512-232-2803
University of Texas at Austin
Source:Eurekalert

Related biology news :

1. Nuclear desalination
2. New partnership offers outsourced R&D in membrane biology
3. New membrane strips carbon dioxide from natural gas faster and better
4. Researchers develop better membranes for water treatment, drug delivery
5. European membrane expertise to focus on new treatments for human diseases
6. Carnegie Mellon develops computer model to study cell membrane dynamics
7. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
8. Rutgers high school outreach gets $3 million boost from NSF
9. Breast cancer research and inkjet tissue printing get NSF boost
10. Breastfeeding boost IQ in infants with helpful genetic variant
11. Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced Design ... will feature emerging and evolving technology through its ... Summits will run alongside the expo portion of the ... panels and demonstrations focused on trending topics within 3D ... design and manufacturing event will take place June 13-15, 2017 ...
(Date:4/11/2017)... DUBLIN , Apr. 11, 2017 Research ... Tracking Market 2017-2021" report to their offering. ... The global eye tracking market to grow at ... The report, Global Eye Tracking Market 2017-2021, has been prepared based ... report covers the market landscape and its growth prospects over the ...
(Date:4/6/2017)... , April 6, 2017 ... RFID, ANPR, Document Readers, by End-Use (Transportation & Logistics, ... Facility, Oil, Gas & Fossil Generation Facility, Nuclear Power), ... Educational, Other) Are you looking for a ... sector? ...
Breaking Biology News(10 mins):
(Date:4/21/2017)... Washington, USA (PRWEB) , ... April 21, 2017 ... ... sensing, imaging, and related applications were the focus of researchers, engineers, product developers, ... 2017 in Anaheim. , Sponsored by SPIE, the international society for ...
(Date:4/21/2017)... ... ... Frederick Innovative Technology Center, Inc. (FITCI), a business incubator ... a $77,518 grant from the Rural Maryland Council (RMC) to support refurbishment of ... incubator. A non-profit corporation, FITCI is a public-private partnership of the governments of ...
(Date:4/20/2017)... April 20, 2017  Eli Lilly and Company (NYSE: ... evaluating galcanezumab for the prevention of migraine at the ... take place April 22-28, 2017, in Boston ... abstracts at AAN, including safety and patient outcomes data ... with a reduction in monthly migraine headache days among ...
(Date:4/20/2017)... ... , ... NetDimensions appoints Bill Mastin, a learning technology veteran, as its new ... the learning technologies industry, Mastin joins NetDimensions from the New York office of learning ... LEO, Mastin served as SVP of the North America offices and prior to that, ...
Breaking Biology Technology: