Articles liés à Bioremediation Of Heavy Metals: Role of Microorganisms...

Bioremediation Of Heavy Metals: Role of Microorganisms in Bioremediation of Heavy Metal Pollution - Couverture souple

Karnwal, Arun; Chandel, Neetika

 
9783848428731: Bioremediation Of Heavy Metals: Role of Microorganisms in Bioremediation of Heavy Metal Pollution
Couverture souple
ISBN 10 : 3848428733 ISBN 13 : 9783848428731
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

Heavy metals are widespread pollutants of great concern as they are non degradable and thus persistent. These metals are used in various industries from which effluents are consequently discharged into the environment. Introduction of metals in various forms into the environment can produce numerous modifications of microbial communities and affect their activities. In order to survive in heavy-metal polluted environments, many micro-organisms have developed means of resistance to toxic metal ions.At higher concentrations, however, heavy-metal ions form unspecific complex compounds in the cell, which leads to toxic effects. Some heavy-metal cations, e.g. Hg2+, Cd2+and Ag+, form strong toxic complexes, which makes them too dangerous for any physiological function. Microbiological processes can either solubilize metals, thereby increasing their bioavailability and potential toxicity, or immobilize them, and thereby reduce the bioavailability of metals. These biotransformations are important components of biogeochemical cycles of metals.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Heavy metals are widespread pollutants of great concern as they are non degradable and thus persistent. These metals are used in various industries from which effluents are consequently discharged into the environment. Introduction of metals in various forms into the environment can produce numerous modifications of microbial communities and affect their activities. In order to survive in heavy-metal polluted environments, many micro-organisms have developed means of resistance to toxic metal ions.At higher concentrations, however, heavy-metal ions form unspecific complex compounds in the cell, which leads to toxic effects. Some heavy-metal cations, e.g. Hg2+, Cd2+and Ag+, form strong toxic complexes, which makes them too dangerous for any physiological function. Microbiological processes can either solubilize metals, thereby increasing their bioavailability and potential toxicity, or immobilize them, and thereby reduce the bioavailability of metals. These biotransformations are important components of biogeochemical cycles of metals.

Biographie de l'auteur

Dr. Arun Karnwal, Ph.D. Microbiology Gurukula Kangri Vishwavidyalaya,India. Presently working as Reader at Bhojia Institute of Life Sciences, India.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3848428733
ISBN 13 
9783848428731
Reliure
Broché
Nombre de pages
76
Coordonnées du fabricant
non disponible
Personne responsable
KreGa Onlinehandel GmbH
4950000000000
info@krega-onlinehandel.de

Birkenweg 31
Brakel
33034
Allemagne