Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

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

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Discovery of nanotubes offers new clues about cell-to-cell communication July 2nd, 2015

Discoveries

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Announcements

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

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

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Environment

NIST ‘How-To’ Website Documents Procedures for Nano-EHS Research and Testing July 1st, 2015

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

The peaks and valleys of silicon: Team of USC Viterbi School of Engineering Researchers introduce new layered semiconducting materials as silicon alternative June 27th, 2015

NNI Publishes Workshop Report and Launches Web Portal on Nanosensors: Both outputs support the Nanotechnology Signature Initiative ‘Nanotechnology for Sensors and Sensors for Nanotechnology: Improving and Protecting Health, Safety, and the Environment’ June 24th, 2015

Water

Visible Light-Sensitive Photocatalysts Used for Purification of Contaminated Water in Iran June 30th, 2015

Dais Analytic Unveils New Version of Aqualyte Membrane Technology: Updates to the Basis of the Company's Industry-Changing Nanotechnology Designed to Strengthen Position in Global Air, Energy, and Water Markets June 26th, 2015

Bacteria Cellulose, Natural Polymers with Applications in Various Industries Synthesized in Iran June 22nd, 2015

Ceramic Nanomembrane, New Material for Dehydration of Natural Gas June 7th, 2015

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