Document Details
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Document Type |
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Project |
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Document Title |
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Microbial degradation of phenolic pollutants التحلل الحيوي للملوثات الفينوليه |
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Subject |
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Microbial degradation of phenolic pollutants |
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Document Language |
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Arabic |
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Abstract |
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Phenol and many of its derivatives are widely used in chemical industry, explosives and photographic chemicals. The principal source of phenol itself is benzene from either petroleum or the carbonization coal. Phenol, cresols, xylenols and polyaromatic compounds are also by-products of petroleum and petrochemicals. In addition to their production and use in industry, a wide variety of phenols are to be found in nature and plants. Consequently, a great variety of phenols are presumably released in the process of biological degradation of some plant materials, various biocides and synthetic detergents by soil microorganisms.
All the aromatic compounds, present in soil or water streams, as a result of uncontrolled waste disposals or from biological origins, may have high toxicity to living organisms, especially when accumulated at over-bearing concentrations, and many of them are carcinogens. Phenol is considered to constitute about third of the most dangerous pollutants allover the world.
Water receives large amounts of phenolic pollutants from numerous sources, wastes of industries, pharmaceutical drugs, chemicals and domestic uses, as well as, wastes of animals. Phenols and other aromatic hydrocarbons have a highly toxic effect on bacteria and other microorganisms. However, some microorganisms are able to use phenolic compounds as a sole carbon and energy sources.
Biodegradation of toxic phenolic compounds present in the waste water effluents of sewage and many chemical industries, which are expanding at the present time, and threatening our environment, has recently attracted much attention. Therefore, it seems important to study the biodegradation of phenol by microorganisms. |
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Publishing Year |
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1428 AH
2007 AD |
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Added Date |
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Wednesday, July 7, 2010 |
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Researchers
| خالد محمد غانم | Ghanem, Khaled Mohammed | Investigator | Doctorate | |
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