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Testing the resource-ratio theory as...

Garcia-Blanco, Susana.

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Testing the resource-ratio theory as a framework supporting a bioremediation strategy for clean-up of crude oil-contaminated environments.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Testing the resource-ratio theory as a framework supporting a bioremediation strategy for clean-up of crude oil-contaminated environments./
作者:	Garcia-Blanco, Susana.
面頁冊數:	163 p.
附註:	Chair: Makram T. Suidan.
Contained By:	Dissertation Abstracts International66-01B.
標題:	Engineering, Environmental. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3159883
ISBN:	9780496931194

Testing the resource-ratio theory as a framework supporting a bioremediation strategy for clean-up of crude oil-contaminated environments.
Garcia-Blanco, Susana.

Testing the resource-ratio theory as a framework supporting a bioremediation strategy for clean-up of crude oil-contaminated environments. - 163 p.

Chair: Makram T. Suidan.

Thesis (Ph.D.)--University of Cincinnati, 2004.

The most important factors limiting oil degradation in the environment are usually the factors affecting microbial activity, such as nutrient supply and availability of electron acceptors (e.g., oxygen), and not the abundance of microbial populations. Biostimulation, the addition of inorganic nutrients has been shown to increase microbial activity in oil-contaminated environments, resulting in enhanced degradation of hydrocarbon contaminants, especially in highly aerobic environments. However, there is no agreement regarding the optimal Carbon: Nitrogen: Phosphorus (C:N:P) ratio for the nutrient amendments. This research project explores the potential of applying the resource-ratio theory, a resource competition theory widely used in Microbial Ecology, to oil-hydrocarbons biodegradation. The focus was to investigate the effects of different nitrogen and phosphorus amendments on (a) the rate and extent of targeted n-alkanes and polycyclic aromatic hydrocarbons (PAH) biodegradation and (b) the variations in microbial community structure under the different chosen experimental conditions. Experimental results mostly supported the hypotheses from the resource-ratio theory. A close relationship between community structure and community function was suggested by the experimental data. Phosphorus was found to be a determining variable for the selective degradation of alkanes or PAHs. Our findings have significant implications towards the design of a bioremediation strategy of oil hydrocarbons contaminated environments.

ISBN: 9780496931194Subjects--Topical Terms:

783782
Engineering, Environmental.

Testing the resource-ratio theory as a framework supporting a bioremediation strategy for clean-up of crude oil-contaminated environments.
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