Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Modified Cellulose Acetate Nanofilters Applied to Separate Poison from Water

Abstract:
Iranian researchers successfully synthesized and modified the performance of cellulose acetate nanofilter membranes in order to separate nitro-aromatic poisons from water.

Modified Cellulose Acetate Nanofilters Applied to Separate Poison from Water

Tehran, Iran | Posted on September 18th, 2012

Membrane processes, especially nanofiltration, have been used in this research as useful methods due to their advantages such as high performance in water and wastewater purification and the re-use of polluted waters, higher efficiency in separation, ease of operation, lack of the need for chemical compounds, and being cost-effective.

Due to its high hydrophilicity, desirable resistance against solvents, and low cost, cellulose acetate polymer is one the choices of the researchers in order to synthesize nanofilter membranes.

However, the membranes synthesized of this polymer are relatively dense and they have a surface layer with high thickness. It results in noticeable reduction in the passing flux and also in decrease in the overall performance of the nanofilter membrane.

"In this research, cellulose acetate nanofilter membrane was firstly synthesized by using ion separation method. Then, the anionic surfactant of sodium dodecyl sulfate (SDS) was used in order to modify the structure and properties of the membrane. And finally, the two important parameters of flux and percentage of nitro-aromatic poison permeation under various environmental circumstances were studied in order to evaluate the final efficiency of the nanofilters," Dr. Negin Qae'mi, member of the Scientific Board of Chemical Engineering School of Kermanshah University of Technology, stated about the research,
Elaborating on the results of the research, she said, "Significant increase in the porosity as well as a decrease in the thickness of the surface layer of nanofilters was clearly observed in this research.

The mentioned changes in addition to the desirable increase in the hydrophilicity and surface charge of the nanofilters result in the simultaneous increase in the flux passing through the membrane and the permeability of the poisons."

Results of the research have been published on March 30, 2012, in Desalination, vol. 290, pp. 99-106.

####

For more information, please click here

Copyright © Fars News Agency

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Discoveries

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Announcements

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Water

Nanoparticles for clean drinking water January 17th, 2015

Going with the flow January 16th, 2015

Rice's Naomi Halas to direct Smalley Institute: Optics pioneer will lead Rice's multidisciplinary science institute January 15th, 2015

Liquids and glasses relax, too. But not like you thought January 15th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE