Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Researchers Develop Highly Efficient Nanoadsorbents to Remove Heavy Metals from Wastewater

Abstract:
Iranian researchers from Sharif University of Technology used nanotechnology to produce highly efficient adsorbents to remove heavy metals from industrial wastewater.

Researchers Develop Highly Efficient Nanoadsorbents to Remove Heavy Metals from Wastewater

Tehran, Iran | Posted on May 19th, 2014

This invention is a big step towards the application of various nanomaterials in water purification process.

The size of particles in the produced nanoadsorbent is 20 nm, which is completely suitable for the removal of nickel, cobalt and barium ions from water. Small amount of the nanoadsorbent can be used in the process of removing the heavy metals since its efficiency is high. Therefore, it results in decreasing the operational costs. The researchers also presented a correlation that expresses the kinetics of the reaction by taking into consideration various parameters effective on the sorption efficiency.

According to the researchers, zeolite is one of the most promising materials among various inorganic adsorbents to carry out metal purification process. Low cost is the advantage of zeolite in comparison with various types of resins. The adsorbent was produced by depositing platinum nanoparticles on a bed of Zeolite A4.

Surface sorption was used in the removal of metallic ions by using the nanoadsorbent. The process is cheaper than other separation processes such as fractional distillation or extraction. On the other hand and contrary to some of separation methods, including solvent extraction, surface sorption in fixed beds is a direct separation method that does not need any supplementary process.

Results of the research showed that the amount of sorption increases as the amount of adsorbent increases. In other words, contact area between the particles and the adsorbent increases and more ions have the opportunity to deposit on the surface of the adsorbent. Increase in the temperature boosts sorption yield too. The efficiency of the nanoadsorbent is higher in acidic media.

Results of the research have been published in Journal of Environmental Health Science & Engineering, vol. 12, issue 1, January 2014, pp. 1-7.

####

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

The random raman laser: A new light source for the microcosmos May 4th, 2015

Defects in atomically thin semiconductor emit single photons: Researchers create optically active quantum dots in 2-D semiconductor for the first time; may have applications for integrated photonics May 4th, 2015

Arrowhead to Report Fiscal 2015 Second Quarter Financial Results May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Discoveries

The random raman laser: A new light source for the microcosmos May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Nanoparticles in consumer products can significantly alter normal gut microbiome May 4th, 2015

Antibacterial Ceramic Nanoparticles, Appropriate Material for Medical Devices May 3rd, 2015

Announcements

Defects in atomically thin semiconductor emit single photons: Researchers create optically active quantum dots in 2-D semiconductor for the first time; may have applications for integrated photonics May 4th, 2015

Arrowhead to Report Fiscal 2015 Second Quarter Financial Results May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Nanoparticles in consumer products can significantly alter normal gut microbiome May 4th, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

The random raman laser: A new light source for the microcosmos May 4th, 2015

Defects in atomically thin semiconductor emit single photons: Researchers create optically active quantum dots in 2-D semiconductor for the first time; may have applications for integrated photonics May 4th, 2015

Nanoparticles in consumer products can significantly alter normal gut microbiome May 4th, 2015

New Nanodrug Produced in Iran from Milk Thistle May 4th, 2015

Environment

Chemists strike nano-gold: 4 new atomic structures for gold nanoparticle clusters: Research builds upon work by Nobel Prize-winning team from Stanford University April 28th, 2015

Nanoparticles Used to Improve Mechanical, Thermal Properties of Cellulose Fibers April 23rd, 2015

Young NTU Singapore spin-off clinches S$4.3 million joint venture with Chinese commercial giant March 23rd, 2015

New processing technology converts packing peanuts to battery components March 22nd, 2015

Water

Production of Industrial Nano-Membrane for Water, Wastewater Purification Device in Iran May 2nd, 2015

Quantum model reveals surface structure of water: National Physical Laboratory, IBM and Edinburgh University have used a new quantum model to reveal the molecular structure of water's liquid surface April 20th, 2015

Dais Analytic Corporation Appoints Eliza Wang to Board of Directors: Company's Newest Director Brings Expertise in Commercial and Legal Matters Both in the United States and China; Joins on the Heels of Successful Business Development Trade Mission to China April 18th, 2015

Iranian Scientists Produce Magnetic Recyclable Photocatalyst to Purify Polluted Water April 8th, 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