الفهرس 
Aliphatic hydrocarbonOnly 14 pages are availabe for public view
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Abstract
Industrial areas in Egypt has become one of the major routes of some wastes
production as it discharges a large amount of petroleum hydrocarbons which
possess severe hazardous effects on the surrounding environment. Aromatic
hydrocarbon is one of the most toxic organic pollutants, among this organic
hydrocarbons is anthracene and carbazole which they highly carcinogenic.
The environmental threat of those aromatic hydrocarbons to humans due to
exposure through industrial effluent discharge and other combustion activities
into the environment beside expensive nature of the physical and chemical
remediation techniques initiates this research. In this study anthracene and
carbazole were degraded by bacteria isolated from industrial waste water areas
and degradation was carried out in liquid minimal salt media (MSM). From
the fourteen bacterial strains isolated only three isolates were selected that
show high potency for degrading anthracene and carbazole. Isolates GH1,
GH17 and GH21 were identified biochemically and genetically by 16S rRNA
sequence as Lysinibacillus fusiform, Bacillus subtilis and Serratia
liquefaciens, resepectively. Some environmental factors which effect on their
degradation were also studied in this research to optimize its degradation
process. The intermediates formed during anthracene and carbazole
degradation were identified by GC-MS spectroscopic analysis, which revealed
anthracene degradation pathway.