Biodegradation of benzo[a]pyrene in soil by Mucor sp. SF06 and Bacillus sp. SB02 co-immobilized on vermiculite

Su, Dan, Li, Pei-jun, Stagnitti, Frank and Xiong, Xian-zhe 2006, Biodegradation of benzo[a]pyrene in soil by Mucor sp. SF06 and Bacillus sp. SB02 co-immobilized on vermiculite, Journal of environmental sciences, vol. 18, no. 6, pp. 1204-1209, doi: 10.1016/S1001-0742(06)60063-6.

Attached Files
Name Description MIMEType Size Downloads

Title Biodegradation of benzo[a]pyrene in soil by Mucor sp. SF06 and Bacillus sp. SB02 co-immobilized on vermiculite
Author(s) Su, Dan
Li, Pei-jun
Stagnitti, Frank
Xiong, Xian-zhe
Journal name Journal of environmental sciences
Volume number 18
Issue number 6
Start page 1204
End page 1209
Publisher Elsevier B.V.
Place of publication Amsterdam, The Netherlands
Publication date 2006-11
ISSN 1001-0742
Keyword(s) biodegradation
Bacillus sp. SB02
Mucor sp. SF06
soil pollution
Summary Two indigenous microorganisms, Bacillus sp. SB02 and Mucor sp. SF06, capable of degrading polycyclic aromatic hydrocarbons (PAHs) were co-immobilized on vermiculite by physical adsorption and used to degrade benzo[a] pyrene (BaP). The characteristics of BaP degradation by both free and co-immobilized microorganism were then investigated and compared. The removal rate using the immobilized bacterial-fungal mixed consortium was higher than that of the freely mobile mixed consortium. 95.3% of BaP was degraded using the co-immobilized system within 42 d, which was remarkably higher than the removal rate of that by the free strains. The optimal amount of inoculated co-immobilized system for BaP degradation was 2%. The immobilized bacterial-fungal mixed consortium also showed better water stability than the free strains. Kinetics of BaP biodegradation by co-immobilized SF06 and SB02 were also studied. The results demonstrated that BaP degradation could be well described by a zero-order reaction rate equation when the initial BaP concentration was in the range of 10—200 mg/kg. The scanning electronic microscope (SEM) analysis showed that the co-immobilized microstructure was suitable for the growth of SF06 and SB02. The mass transmission process of co-immobilized system in soil is discussed. The results demonstrate the potential for employing the bacterial-fungal mixed consortium, co-immobilized on vermiculite, for in situ bioremediation of BaP.

Language eng
DOI 10.1016/S1001-0742(06)60063-6
Field of Research 109999 Technology not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences
Persistent URL

Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 57 times in TR Web of Science
Scopus Citation Count Cited 75 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 731 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 13 Oct 2008, 15:50:34 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact