Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Chains of nanogold forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Nanotech Grants Options September 22nd, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Discoveries

Chains of nanogold forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Speedy bacteria detector could help prevent foodborne illnesses September 21st, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Announcements

Chains of nanogold forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Nanotech Grants Options September 22nd, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

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

Chains of nanogold forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Speedy bacteria detector could help prevent foodborne illnesses September 21st, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Environment

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Mathematical nanotoxicoproteomics: Quantitative characterization of effects of multi-walled carbon nanotubes: This research article by Dr. Subhash Basak et al. will be published in Current Computer-Aided Drug Design, Volume 12, 2016 September 2nd, 2016

Nanofur for oil spill cleanup: Materials researchers learn from aquatic ferns: Hairy plant leaves are highly oil-absorbing / publication in bioinspiration & biomimetics / video on absorption capacity August 25th, 2016

Researchers watch catalysts at work August 19th, 2016

Water

Atomic scale pipes available on demand and by design September 9th, 2016

University of Akron researchers find thin layers of water can become ice-like at room temperature: Results could lead to an assortment of anti-friction solutions August 30th, 2016

SLAC, Stanford gadget grabs more solar energy to disinfect water faster: Plopped into water, a tiny device triggers the formation of chemicals that kill microbes in minutes August 15th, 2016

New method for making green LEDs enhances their efficiency and brightness July 30th, 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