| Autor: |
Tahar, Hannachi Mohamed, Djebaili, H. |
| Předmět: |
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| Zdroj: |
International Review of Chemical Engineering - Rapid Communications; Nov2010, Vol. 2 Issue 6, p662-669, 8p, 1 Color Photograph, 6 Diagrams, 1 Chart, 8 Graphs |
| Abstrakt: |
The microorganisms have been identified like one vectors of the dissemination of the metallic pollutants in soils and promote the degradation of most of the materials in their natural environment, including metallic materials. The experiences of simultaneous transfer of metals and bacterial colloids showed an affinity more important of metals for the bio-colloidal fraction that for the porous environment coming with an acceleration of their transfer until an advanced factor. Thesis processes can be ominous of quoted it industrial heart the economic stake ace heart the pollution of soils heart conditions geo-chemical of the middle and one speaks of the environment and health. In other words, biocorrosion is not a form of corrosion, but a change in the kinetics under the influence of the presence of bacteria and products of their metabolism. Among industrial risks necessary to control, the phenomena of biodegradation represent a real danger, which is essential to characterize. So far, the mechanisms leading to the deterioration of materials by the bacterial microflora are not all fully explained. Indeed, the spread of knowledge requires has sustained interacts between metalworkers, microbiologists, biochemists, chemists and corrosionnistes. A second reason, no less important, is the lack of scientific studies from microorganisms isolated from the industrial environment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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