[The degradation of phenanthrene and pyrene contaminated soil with immobilized technique].
The phenanthrene and pyrene contaminated soil was degradaded by immobilized-imbedding the selected Zoogloea sp. The degradation rate was determined under various amounts of inoculation and concentration, and the result showed that there was the best degradation rate at 5%. After 168 h, the degradation rate of immobilized Zoogloea sp. to phenanthrene and pyrene was 84.89% and 76.94% respectively. While, the degradation rate of the native bacterium was only 27.85% and 19.65% at the same condition. So the Zoogloea sp. had the better degradation ability. And, Zoogloea sp. distributing shape in immobilized carrier was studied with electric scan-photo, it inferred that immobilized bacterium had the better degradation rate.
Wang
Xin
X
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015, China.
Li
Peijun
P
Gong
Zongqiang
Z
Qu
Xiangrong
X
Wang
Bin
B
D004787:Environmental Pollution / Q000517:prevention & control; D010616:Phenanthrenes / Q000378:metabolism*; D011721:Pyrenes / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*; D015045:Zoogloea / Q000378:metabolism*
D010616:Phenanthrenes; D011721:Pyrenes; D012989:Soil Pollutants; C031181:phenanthrene; C030984:pyrene