微生物群落对土壤和泥浆相中老化多环芳烃（PAHs）的生物降解作用
Biodegradation of aged polycyclic aromatic hydrocarbons (PAHs) by microbial consortia in soil and slurry phases.
作者信息
Li Xiaojun, Li Peijun, Lin Xin, Zhang Chungui, Li Qi, Gong Zongqiang
机构信息
Institute of Applied Ecology, Chinese Academy of Sciences, P.O. Box 417, Wenhua Road 72, Shenyang 110016, PR China.
出版信息
J Hazard Mater. 2008 Jan 15;150(1):21-6. doi: 10.1016/j.jhazmat.2007.04.040. Epub 2007 Apr 20.
Microbial consortia isolated from aged oil-contaminated soil were used to degrade 16 polycyclic aromatic hydrocarbons (15.72 mgkg(-1)) in soil and slurry phases. The three microbial consortia (bacteria, fungi and bacteria-fungi complex) could degrade polycyclic aromatic hydrocarbons (PAHs), and the highest PAH removals were found in soil and slurry inoculated with fungi (50.1% and 55.4%, respectively). PAHs biodegradation in slurry was lower than in soil for bacteria and bacteria-fungi complex inoculation treatments. Degradation of three- to five-ring PAHs treated by consortia was observed in soil and slurry, and the highest degradation of individual PAHs (anthracene, fluoranthene, and benz(a)anthracene) appeared in soil (45.9-75.5%, 62-83.7% and 64.5-84.5%, respectively) and slurry (46.0-75.8%, 50.2-86.1% and 54.3-85.7%, respectively). Therefore, inoculation of microbial consortia (bacteria, fungi and bacteria-fungi complex) isolated from in situ contaminated soil to degrade PAHs could be considered as a successful method.
从老化的石油污染土壤中分离出的微生物群落被用于降解土壤和泥浆相中16种多环芳烃（15.72 mgkg(-1)）。这三种微生物群落（细菌、真菌和细菌-真菌复合体）能够降解多环芳烃（PAHs），其中接种真菌的土壤和泥浆中PAH去除率最高（分别为50.1%和55.4%）。对于细菌和细菌-真菌复合体接种处理，泥浆中PAHs的生物降解低于土壤。在土壤和泥浆中观察到了群落对三环至五环PAHs的降解，单个PAHs（蒽、荧蒽和苯并(a)蒽）的最高降解率出现在土壤中（分别为45.9 - 75.5%、62 - 83.7%和64.5 - 84.5%）和泥浆中（分别为46.0 - 75.8%、50.2 - 86.1%和54.3 - 85.7%）。因此，接种从原位污染土壤中分离出的微生物群落（细菌、真菌和细菌-真菌复合体）来降解PAHs可被视为一种成功的方法。
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