Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Iranian Scientists Use Nanoparticles to Remove Microorganisms from Aqueous Media

Abstract:
Iranian environmental engineers studied the performance of zinc oxide nanoparticles in photocatalytic disinfection of microbial pollutions from aqueous media.

Iranian Scientists Use Nanoparticles to Remove Microorganisms from Aqueous Media

Tehran, Iran | Posted on October 26th, 2013

Iranian environmental engineers studied the performance of zinc oxide nanoparticles in photocatalytic disinfection of microbial pollutions from aqueous media.

The removal of microorganisms by using nanoparticles in the presence of UV, which has applications in food and medical industries, drinking water, and environmental industries, has higher performance than the removal method by using only UV.

Dr. Mohammad Yousef Alikhani, a member of the Scientific Board of Hamedan University of Medical Sciences, explained about the research, and stated, "The most important objective in this research was the study the kinetics of the removal of Escherichia coli process in the designed reactor. According to the experiments, the reaction was determined to be first degree."

Results of the research showed that the efficiency of the method increased as the concentration of nanoparticles increased. The reason was the increase in the surface of catalyst and also the free electrons created by nanoparticles. The same result was obtained for contact time and the initial concentration of bacteria. The optimum condition of pH value of the media was reported neutral pH, because the performance of the photocatalyst decreases at acidic or alkaline environment.

According to Dr. Alikhani, the performance of UV/zinc oxide process in the removal of Escherichia coli significantly increased in comparison with that of purification process by using UV due to the smaller size and higher surface area of the modified nanoparticles. Therefore, a simultaneous process of UV/zinc oxide nanoparticles can be used as an effective method in the disinfection of microorganisms from aqueous solutions.

Results of the research have been published in details in Water Science & Technology in February 2013, vol. 67, issue 3, pp. 557-563.

####

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

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

Discoveries

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

New research points to graphene as a flexible, low-cost touchscreen solution September 19th, 2014

Announcements

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

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

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

New research points to graphene as a flexible, low-cost touchscreen solution September 19th, 2014

Environment

Iranian Nano Scientists Create Flame-Resistant Polymers September 13th, 2014

NanoStruck has a High Recovery Rate on Mine Tailings: retrieval of up to 96% of Gold, 88% of Silver and 86% of Palladium September 12th, 2014

Nanostruck announces 87.6% recovery of 56 GMS/ton silver tailings samples September 12th, 2014

Boosting armor for nuclear-waste eating microbes September 12th, 2014

Water

Malvern Instruments & Aurora Water conference presentation illustrates value and cost-saving potential of on-line zeta potential in water treatment: 2014 RMSAWWA/RMWEA Joint Annual Conference, Albuquerque, New Mexico, USA September 7th 10th September 3rd, 2014

New Nanosorbent Helps Elimination of Colorants from Textile Wastewater August 25th, 2014

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

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