الفهرس 
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Abstract
Environmental pollution with hazardous wastes containing recalcitrant xenobiotic chemicals has become one of the major ecological problems unlike the naturally occurring organic compounds that are readily degraded upon introduction into the environment some of these synthetic chemicals are extremely resistant to biodegradation by native microorganisms fernando and aust 1994 many of these compounds are major environmental pollutants such as munitions waste pesticides organochlorines polychlorinated biphenyls pcb polycyclic aromatic hydrocarbons pahs syntheticdyes wood preservatives and synthetic polymers pointing 2001.