Nanotechnology Now

Our NanoNews Digest Sponsors


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

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Deep Space Industries and SFL selected to provide satellites for HawkEye 360’s Pathfinder mission: The privately-funded space-based global wireless signal monitoring system will be developed by Deep Space Industries and UTIAS Space Flight Laboratory May 26th, 2016

Discoveries

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Finding a new formula for concrete: Researchers look to bones and shells as blueprints for stronger, more durable concrete May 26th, 2016

Announcements

Simple attraction: Researchers control protein release from nanoparticles without encapsulation: U of T Engineering discovery stands to improve reliability and fabrication process for treatments to conditions such as spinal cord damage and stroke May 28th, 2016

Scientists illuminate a hidden regulator in gene transcription: New super-resolution technique visualizes important role of short-lived enzyme clusters May 27th, 2016

Doubling down on Schrödinger's cat May 27th, 2016

Deep Space Industries and SFL selected to provide satellites for HawkEye 360’s Pathfinder mission: The privately-funded space-based global wireless signal monitoring system will be developed by Deep Space Industries and UTIAS Space Flight Laboratory May 26th, 2016

Water

Mille-feuille-filter removes viruses from water May 19th, 2016

First single-enzyme method to produce quantum dots revealed: Biological manufacturing process, pioneered by three Lehigh University engineers, produces equivalent quantum dots to those made chemically--but in a much greener, cheaper way May 9th, 2016

Understanding tiny droplets can make for better weather forecasts: Climate change models also benefit from understanding fundamental thermodynamics of water droplets May 6th, 2016

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

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







Car Brands
Buy website traffic