Biodegradation of Benzo[a]pyrene in Soil by Immobilized Fungus

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	Biodegradation of Benzo[a]pyrene in Soil by Immobilized Fungus
	Su, D; Li, PJ; Wang, X; Stagnitti, F; Xiong, XZ; Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China
刊名	ENVIRONMENTAL ENGINEERING SCIENCE
	2008
卷号	25 期号:8 页码:1181-1188
关键词	Biodegradation Pah Benzo[a]Pyrene Bap Immobilization Mc Soil Pollution
ISSN号	1092-8758
英文摘要	Mucor sp., a filamentous fungus capable of degrading polycyclic aromatic hydrocarbons (PAHs), was immobilized on maize cob (MC) by physical adsorption and used to degrade benzo[a]pyrene (BaP). The characteristics of BaP degradation by both immobilized and free fungus were then investigated and compared. The degradation rate using the immobilized fungus was higher than that of the freely mobile fungus. When the initial BaP concentration was 50 mg . kg(-1), the removal rate was 68% within 42 days using immobilized fungus but only 52% for free fungus in that same time. The optimal amount of inoculated immobilized fungus for BaP degradation was shown to be 2%. The immobilized fungus also showed better removal efficiencies of BaP than free fungus, independent of the moisture content. The increasing concentration of BaP was better tolerated and more quickly degraded by immobilized fungus than by free fungus when the initial BaP concentration was in the range of 10 to 200 mg . kg(-1). The scanning electronic microscope (SEM) analysis showed that the immobilized microstructure was suitable for Mucor sp. growth. The results demonstrate the potential for employing Mucor sp., immobilized on MC, for in situ bioremediation of PAH-contaminated soil.
学科主题	Engineering, Environmental ; Environmental Sciences
语种	英语
WOS记录号	WOS:000260004600010
资助机构	Major State Basic Research Development Program of China [2004CB418506]; National Natural Science Foundation of China [20337010]; National High Technology Research and Development Program of China [2004AA649060]
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54349]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Su, D,Li, PJ,Wang, X,et al. Biodegradation of Benzo[a]pyrene in Soil by Immobilized Fungus[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2008,25(8):1181-1188.
APA	Su, D,Li, PJ,Wang, X,Stagnitti, F,Xiong, XZ,&Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China.(2008).Biodegradation of Benzo[a]pyrene in Soil by Immobilized Fungus.ENVIRONMENTAL ENGINEERING SCIENCE,25(8),1181-1188.
MLA	Su, D,et al."Biodegradation of Benzo[a]pyrene in Soil by Immobilized Fungus".ENVIRONMENTAL ENGINEERING SCIENCE 25.8(2008):1181-1188.