Biodegradation and bioremediation of polycycl ic aromatic hydrocarbons

Transcription

1 19 3 Vol. 1 9 No MARIN E ENV IRONM EN TAL SCIENCE Aug ( ) : : ; ; : X172 : A : (2000) Biodegradation and bioremediation of polycycl ic aromatic hydrocarbons GUO Chu2ling ZHEN G Tian2ling HON G Hua2sheng ( Environmental Science Research Center Key Lab of Marine Environmental Science SED Xiamen University Xinmen China) Abstract : Microbial degradation of PAHs is considered to be the major decomposition process for these contaminants in nature and is of great practical interest for implementation of bioremediation. The reviews on the foundation of bioremediation biodegradation : the isolation and purification of degraded bacteria microbial community degradation mechanism and methods were done. The prospects on this field are discussed. Key words : polycyclic aromatic hydrocarbons( PAHs) ; biodegradation ; bioremediation ; prospect ( PAHs) ( bioremediation) [1 ] ; : : : ( ) : (1976 2)

2 3 : ( GST) [2 ] ( MSM) PAHs 1. 2 ;1 3 Heitkamp [7 ] Wang [8 ] [3 ] [4 ] PAH - MPNs N P 96 PAH - MPNs [5 ] 96 ( ) ( RPA) 1 Fig. 1 Effect of different cultivation medium [6 ] PCR on microbios growth 1. 3 PCR DNA

3 26 19 ; ( ) ( Pseudomonas) ( Flavobacterium ) ( Moraxella) ( V ibrio) ( M arinobacter) ( Cycloclas2 ticus) Nept unomonas naph2 thovorans (cometabolism) [9 ] Hayes [10 ] ; [11 ( ISP) ] ; ( GST) [6 ] ; ; 1. 6 p H ; CO 2 H 2 O

4 3 : 27 [12 ] 9 12 ( ) [13 ] ; Fig. 2 Effect of nutrients on microbios growth Arino [14 ] Deziel [15 ] ( ) ( ) [16 ] Tsomides [18 ] [17 ] ; Lewis [19 ] 177 mg L mg L Grosser [20 ] 2d 55 % ; 1989 Exxon 2. 3

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