Bioremediation of quinoline-contaminated soil using bioaugmentation in slurry-phase reactor.
- Author:
Jian-Long WANG
1
;
Ze-Yu MAO
;
Li-Ping HAN
;
Yi QIAN
Author Information
- Publication Type:Journal Article
- MeSH: Biodegradation, Environmental; Bioreactors; Burkholderia; metabolism; Chromatography, High Pressure Liquid; Quinolines; Sewage; Soil; analysis; Soil Microbiology; Soil Pollutants
- From: Biomedical and Environmental Sciences 2004;17(2):187-195
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo investigate the possibility of using bioaugmentation as a strategy for remediating quinoline-contaminated soil.
METHODSMicroorganisms were introduced to the soil to assess the feasibility of enhancing the removal of quinoline from quinoline-contaminated soil. Slurry-phase reactor was used to investigate the bioremediation of quinoline-contaminated soil. HPLC (Hewlett-Packard model 5050 with an UV detector) was used for analysis of quinoline concentration.
RESULTSThe biodegradation rate of quinoline was increased through the introduction of Burkholderia pickettii. Quinoline, at a concentration of 1 mg/g soil, could be removed completely within 6 and 8 hours with and without combined effect of indigenous microbes, respectively. Although the indigenous microbes alone had no quinoline-degrading ability, they cooperated with the introduced quinoline-degrader to remove quinoline more quickly than the introduced microbes alone. Bioaugmentaion process was accelerated by the increase of inoculum size and bio-stimulation. The ratio of water to soil in slurry had no significant impact on bioremediation results.
CONCLUSIONBioaugmetation is an effective way for bioremediation of quinoline-contaminated soil.