Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Flipping the switch on supramolecular electronics August 14th, 2018

New technology can detect hundreds of proteins in a single sample: Improvement of barcoding technique offers cost-effective alternative to current technology August 13th, 2018

Biomimetic micro/nanoscale fiber reinforced composites August 10th, 2018

Breaking down the Wiedemann-Franz law: In a study exploring the coupling between heat and particle currents in a gas of strongly interacting atoms, physicists at ETH Zurich find puzzling behaviours August 10th, 2018

Discoveries

Flipping the switch on supramolecular electronics August 14th, 2018

New technology can detect hundreds of proteins in a single sample: Improvement of barcoding technique offers cost-effective alternative to current technology August 13th, 2018

Biomimetic micro/nanoscale fiber reinforced composites August 10th, 2018

Breaking down the Wiedemann-Franz law: In a study exploring the coupling between heat and particle currents in a gas of strongly interacting atoms, physicists at ETH Zurich find puzzling behaviours August 10th, 2018

Announcements

Flipping the switch on supramolecular electronics August 14th, 2018

New technology can detect hundreds of proteins in a single sample: Improvement of barcoding technique offers cost-effective alternative to current technology August 13th, 2018

Biomimetic micro/nanoscale fiber reinforced composites August 10th, 2018

Breaking down the Wiedemann-Franz law: In a study exploring the coupling between heat and particle currents in a gas of strongly interacting atoms, physicists at ETH Zurich find puzzling behaviours August 10th, 2018

Water

New sensor technology enables super-sensitive live monitoring of human biomolecules July 3rd, 2018

NIST Researchers Simulate Simple Logic for Nanofluidic Computing June 30th, 2018

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Making quantum puddles: Physicists discover how to create the thinnest liquid films ever June 13th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project