Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Hiden Release New Gas Analysis Catalogue August 21st, 2014

Wyatt Technology’s 24th International Light Scattering Colloquium to Highlight Developments in Applications and Characterization of Nanoparticles August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Discoveries

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Nanotechnology Helps Production of Super Adsorbent Polymers August 21st, 2014

Rice physicist emerges as leader in quantum materials research: Nevidomskyy wins both NSF CAREER Award and Cottrell Scholar Award August 20th, 2014

Announcements

Wyatt Technology’s 24th International Light Scattering Colloquium to Highlight Developments in Applications and Characterization of Nanoparticles August 21st, 2014

Ultra-short pulse lasers & Positioning August 21st, 2014

Malvern’s Dr Alan Rawle talks TLAs in plenary lecture at Particulate Systems Analysis conference August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

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

Shaping the Future of Nanocrystals: Berkeley Lab Researchers Obtain First Direct Observation of Facet Formation in Nanocubes August 21st, 2014

Water window imaging opportunity: A new theoretical study elucidates mechanisms that could help in producing coherent radiations, ultimately promoting high-contrast imaging of biological samples August 21st, 2014

Nanotechnology Helps Production of Super Adsorbent Polymers August 21st, 2014

Newly-Developed Nanobiosensor Quickly Diagnoses Cancer August 20th, 2014

Environment

Production of Toxic Ion Nanosorbents with High Sorption Capacity in Iran August 17th, 2014

PerkinElmer to Display Innovative Detection and Informatics Offerings at ACS National Meeting & Exposition Detection, Data Visualization and Analytics for Chemistry Professionals August 8th, 2014

Nature inspires a greener way to make colorful plastics July 30th, 2014

Iranian Scientists Use Waste Cotton Fibers to Produce Cellulose Nanoparticles July 29th, 2014

Water

Eco-friendly 'pre-fab nanoparticles' could revolutionize nano manufacturing: UMass Amherst team invents a way to create versatile, water-soluble nano-modules August 13th, 2014

PerkinElmer to Display Innovative Detection and Informatics Offerings at ACS National Meeting & Exposition Detection, Data Visualization and Analytics for Chemistry Professionals August 8th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Researchers Use Various Zinc Oxide Nanostructures to Boost Efficiency of Water Purification Process July 13th, 2014

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 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE