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.
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.
Related News Press |
News and information
Simulating magnetization in a Heisenberg quantum spin chain April 5th, 2024
NRL charters Navy’s quantum inertial navigation path to reduce drift April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Discoveries
Chemical reactions can scramble quantum information as well as black holes April 5th, 2024
New micromaterial releases nanoparticles that selectively destroy cancer cells April 5th, 2024
Utilizing palladium for addressing contact issues of buried oxide thin film transistors April 5th, 2024
Announcements
NRL charters Navy’s quantum inertial navigation path to reduce drift April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters
Simulating magnetization in a Heisenberg quantum spin chain April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Environment
Billions of nanoplastics released when microwaving baby food containers: Exposure to plastic particles kills up to 75% of cultured kidney cells July 21st, 2023
Water
Taking salt out of the water equation October 7th, 2022
The latest news from around the world, FREE | ||
Premium Products | ||
Only the news you want to read!
Learn More |
||
Full-service, expert consulting
Learn More |
||