Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Application of Nanoporous Silica in Enzyme Degradation of Pollutants

Abstract:
Iranian researchers from Tehran University of Medical Sciences succeeded in the enzyme degradation of nitrophenol pollutants by using porous silica beads.

Application of Nanoporous Silica in Enzyme Degradation of Pollutants

Tehran, Iran | Posted on September 25th, 2013

The bead was used in order to stabilize laccase enzyme in this research, and it can be used in the purification of industrial wastewater.

Nitrophenol compounds have wide applications in various medical, chemical, and poison production industries. However, they have been categorized as priority pollutants by US Environmental Protection Agency. Biological purification is one of the cost-effective and high-efficient methods for these materials. Nevertheless, the purification of wastewater by using fungi is very important. Laccase was immobilized in this research on porous silica beads with nanometric pores by using a fungi enzyme, and 2,4-dinitrophenol pollutants were eliminated afterwards.

In this research, trametes versicolor laccase enzyme was immobilized on a porous silica bead with nanometric pores, which was designed in two phases. In the first phase, a batch pilot was used to stabilize laccase enzyme on the bead by using surfactants. Then, the optimum condition for the elimination of the pollutant was obtained by taking into account various parameters such as temperature, resistance time, pH value, initial concentration of the pollutant, and enzyme concentration. In the second phase, a continuous system was designed by taking into account the optimum conditions, and the pollutant entered the reactor continuously and the removal process proceeded through enzyme oxidation.

Results of the research showed that resistance time had the highest effect on pollutant removal process while pH value had the lowest effect.

Results of the research have been published in April 2013 in Iranian Journal of Environmental Health Science and Engineering, vol. 10, issue 1.

####

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

Tuning into quantum: Scientists unlock signal frequency control of precision atom qubits July 16th, 2018

Nano-kirigami: 'Paper-cut' provides model for 3D intelligent nanofabrication July 13th, 2018

UMBC researchers develop nanoparticles to reduce internal bleeding caused by blast trauma July 13th, 2018

Oxford Instrumentsí 22 Tesla superconducting magnet system commissioned at the UAM, making it the most intense magnetic field available outside a large international facility July 12th, 2018

Discoveries

Tuning into quantum: Scientists unlock signal frequency control of precision atom qubits July 16th, 2018

Nano-kirigami: 'Paper-cut' provides model for 3D intelligent nanofabrication July 13th, 2018

UMBC researchers develop nanoparticles to reduce internal bleeding caused by blast trauma July 13th, 2018

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides July 13th, 2018

Announcements

Tuning into quantum: Scientists unlock signal frequency control of precision atom qubits July 16th, 2018

Nano-kirigami: 'Paper-cut' provides model for 3D intelligent nanofabrication July 13th, 2018

UMBC researchers develop nanoparticles to reduce internal bleeding caused by blast trauma July 13th, 2018

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides July 13th, 2018

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

Tuning into quantum: Scientists unlock signal frequency control of precision atom qubits July 16th, 2018

Nano-kirigami: 'Paper-cut' provides model for 3D intelligent nanofabrication July 13th, 2018

UMBC researchers develop nanoparticles to reduce internal bleeding caused by blast trauma July 13th, 2018

Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides July 13th, 2018

Environment

Nanomaterials could mean more algae outbreaks for wetlands, waterways: High tech metal particles may inadvertently take a toll on aquatic life June 26th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

A nanotech sensor that turns molecular fingerprints into bar codes June 7th, 2018

Engineered polymer membranes could be new option for water treatment May 6th, 2018

Water

New sensor technology enables super-sensitive live monitoring of human biomolecules July 3rd, 2018

NIST Researchers Simulate Simple Logic for Nanofluidic Computing June 30th, 2018

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Making quantum puddles: Physicists discover how to create the thinnest liquid films ever June 13th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project