Biodegradation of Crude Oil in Ocean
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摘要: 研究了自行分離的兩株原油降解菌SY1和SY2的降解特性.結果表明,在不加任何營養鹽下,菌株SY1和SY2的原油降解率分別達到41.3%和42.6%,實際海水的鹽含量、溫度、pH值和氧溶解量能夠滿足菌株降解原油的需求,并且具有較寬的底物利用范圍.建立了菌株SY1和SY2降解原油的動力學模型,該模型基本符合Michealis-Menten方程.Abstract: The biodegradation efficiency of two petroleum-degrading strains SY1 and SY2 was investigated with synthetic seawater. Experimental results indicated that their biodegradation rates were 41.3% and 42.6% respectively without addition of minor nutrients. Both the strains can adapt to typical ocean conditions including temperature, pH and dissolved oxygen, and also degrade a broad spectrum of hydrocarbon substrates. The kinetic model of biodegradation of crude oil by these two strains were also established, which abides by Michealis-Menten equation.
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Key words:
- petroleum-degrading strain /
- biodegradation /
- dynamics model
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