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Degradation of benzene, toluene, and xylene (BTX) from aqueous solution by isolated bacteria from contaminated sites

Mesgari Shadi, A ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1007/s11164-013-1189-x
  3. Publisher: Kluwer Academic Publishers , 2015
  4. Abstract:
  5. The present study was carried out to evaluate the degradation efficiency of benzene, toluene, and xylene (BTX) by isolated bacteria from various petroleum-hydrocarbons contaminated sites. Five isolated bacteria were selected for testing BTX biodegradation from liquid culture media. Each of these bacteria was able to degrade BTX but with different efficiencies. Maximum biodegradation efficiency for benzene (more than 70 %) was obtained by Gram-positive coccobacillus, Gram-positive coccus and Gram-negative bacillus bacteria, for toluene (60 %) and xylene (70 %) by Gram-positive coccobacillus and Gram-negative coccobacillus. It was found that the presence of xylene in the substrate mixture caused considerable reduction in toluene and benzene biodegradation efficiency
  6. Keywords:
  7. Aromatic hydrocarbons ; Bacteria ; Bacteriology ; Benzene ; Degradation ; Efficiency ; Hydrocarbons ; Microbiology ; Petroleum chemistry ; Toluene ; Wastewater treatment ; Xylene ; Bacillus bacteria ; Benzene , toluene , and xylenes ; Benzene biodegradation ; Biodegradation efficiency ; Contaminated sites ; Degradation efficiency ; Gram-positive cocci ; Petroleum hydrocarbons ; Biodegradation
  8. Source: Research on Chemical Intermediates ; Volume 41, Issue 1 , January , 2015 , Pages 265-275 ; 09226168 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs11164-013-1189-x