Degradation of quinoline by Rhodococcus sp. QL2 isolated from activated sludge

A novel aerobic gram-positive bacterial strain capable of utilizing quinoline as sole source of carbon, nitrogen and energy was isolated from activated sludge of a coke plant wastewater treatment process. The isolate was identified as Rhodococcus sp. QL2 based on its morphology, physiochemical prope...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2008-12, Vol.160 (2), p.289-294
Main Authors: Zhu, Shun-ni, Liu, Dong-qi, Fan, Li, Ni, Jin-ren
Format: Article
Language:English
Subjects:
Activated Sludge
Activation energy
Applied sciences
Bacteria
Biodegradation
Biodegradation, Environmental
Carbon
Chromatography, High Pressure Liquid
Coke
Culture Media
Degradation
DNA, Bacterial - biosynthesis
DNA, Bacterial - genetics
Energy use
Exact sciences and technology
Factor Analysis, Statistical
Gas Chromatography-Mass Spectrometry
General purification processes
Hydrogen-Ion Concentration
Intermediates
Kinetics
Mathematical models
Morphology
Nitrogen - chemistry
Optimization
Pathways
Phenotype
Phylogeny
Pollution
Quinoline
Quinolines - chemistry
Rhodococcus
Rhodococcus - chemistry
Rhodococcus - growth & development
Rhodococcus - metabolism
Rhodococcus sp. QL2
Sewage - analysis
Sole
Strain
Temperature
Utilization
Wastewater treatment
Wastewaters
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel aerobic gram-positive bacterial strain capable of utilizing quinoline as sole source of carbon, nitrogen and energy was isolated from activated sludge of a coke plant wastewater treatment process. The isolate was identified as Rhodococcus sp. QL2 based on its morphology, physiochemical properties in addition to the results from 16S rDNA sequence analysis. The optimum temperature and the pH for its growth were 35–40 °C and 8.0, respectively. Extra nitrogen sources stimulated the bacterial growth on quinoline. Strain QL2 had strong quinoline degradability, and its degradation kinetics could be described with Haldane's model. Strain QL2 also had a broad range of substrate utilization. Identification of intermediates by GC/MS showed Rhodococcus sp. QL2 degraded quinoline via two pathways simultaneously.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2008.02.112