| 单歧藻降解4-乙基酚的动力学研究 |
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| 引用本文： | 赵 丽,刘征涛,冯 流,方 征,李 霁,孔志明.单歧藻降解4-乙基酚的动力学研究[J].环境科学研究,2003,16(6):19-22. |
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| 作者姓名： | 赵 丽 刘征涛 冯 流 方 征 李 霁 孔志明 |
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| 作者单位： | 1.北京化工大学,化工学院,北京,100029 |
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| 基金项目： | 国家自然科学基金资助项目(29977020) |
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| 摘 要： | 以4-乙基酚为研究对象,分4个系列浓度组研究其在单歧藻作用下的可降解性及其影响因素,并采用最近提出的生物降解二级反应动力学方程拟合其降解过程.实验结果表明,单歧藻可降解4-乙基酚,其降解速率与藻细胞浓度和有机物初始浓度有关.在较低的有机污染物浓度范围内,动力学常数K主要由藻细胞活性即藻生长速率r决定.
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| 关 键 词： | 单歧藻 4-乙基酚 生物降解动力学 |
| 文章编号： | 1001-6929(2003)06-0019-04 |
| 收稿时间： | 2003/5/22 0:00:00 |
Study on Kinetics of 4-ethylphenol Biodegradation by Tolypothrix |
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| ZHAO Li,LIU Zheng-tao,FENG Liu,FANG Zheng,LI Ji and KONG Zhi-ming.Study on Kinetics of 4-ethylphenol Biodegradation by Tolypothrix[J].Research of Environmental Sciences,2003,16(6):19-22. |
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| Authors: | ZHAO Li LIU Zheng-tao FENG Liu FANG Zheng LI Ji and KONG Zhi-ming |
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| Institution: | 1.College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China2.Chinese Research Academy of Environmental Sciences,Beijing 100012,China3.Department of Biochemistry,Nanjing University,Nanjing 210093,China |
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| Abstract: | With different Tolypothrix density and 4-ethylphenol concentration,four groups of tests were conducted to study the biodegradability of 4-ethylphenol and its influencing factors.Experimental results showed that Tolypothrix was able to degrade 4-ethylphenol,the degradation process was in accordance with the second-order kinetic equation,and the degradation rate depended on Tolypothrix density and initial 4-ethylphenol concentration.With low organic compound concentration,the kinetic constant K is mainly determined by the rate of Tolypothrix growth r. |
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| Keywords: | Tolypothrix 4-ethylphenol biodegradation kinetics |
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