| 耐低温菌JH-9降解苯胺的动力学研究 |
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| 引用本文： | 韩 瑜,马 放,山 丹,王继华,郭静波,王 晨. 耐低温菌JH-9降解苯胺的动力学研究[J]. 环境科学研究, 2007, 20(5): 119-123 |
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| 作者姓名： | 韩 瑜 马 放 山 丹 王继华 郭静波 王 晨 |
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| 作者单位： | 哈尔滨工业大学,市政环境工程学院黑龙江省环境生物技术重点实验室,黑龙江,哈尔滨,150090;哈尔滨师范大学,生命与环境科学学院,黑龙江,哈尔滨,150025 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) , 黑龙江省青年技术专项基金 , 黑龙江省博士后科研启动基金 |
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| 摘 要： | 研究耐低温菌JH-9在低温(10 ℃)条件下对不同初始ρ(苯胺)的生物降解情况，并采用反应动力学方程(Monod方程和Haldane方程)拟合其降解过程. 结果表明，菌株JH-9在低温下可降解苯胺，当菌体初始质量浓度一定时，苯胺降解率及平均降解速率主要与初始ρ(苯胺)有关. 初始ρ(苯胺)较低时(<550 mg/L)，其在120 h内可完全降解，且平均降解速率随着初始ρ(苯胺)的增加而升高，菌体降解过程中没有出现苯胺毒性抑制作用，遵循Monod方程；当初始ρ(苯胺)较高时(>550 mg/L)，苯胺降解率及降解速率均有所下降，由于初始ρ(苯胺)过高对菌体产生了抑制作用，其降解过程以基质抑制型的Haldane方程为主.
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| 关 键 词： | 耐低温菌JH-9 低温 苯胺 动力学 生物降解 |
| 文章编号： | 1001-6929（2007）05-0119-05 |
| 收稿时间： | 2007-01-25 |
| 修稿时间： | 2007-01-25 |
Study on Kinetics of Aniline Biodegradation by Low Temperature-Resistance Strain JH-9 |
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| HAN Yu,MA Fang,SHAN Dan,WANG Ji-hu,GUO Jing-bo and WANG Chen. Study on Kinetics of Aniline Biodegradation by Low Temperature-Resistance Strain JH-9[J]. Research of Environmental Sciences, 2007, 20(5): 119-123 |
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| Authors: | HAN Yu MA Fang SHAN Dan WANG Ji-hu GUO Jing-bo WANG Chen |
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| Affiliation: | 1.School of Municipal and Environmental Engineering, Harbin Institute of Technology, Province Key Laboratory of Environmental Biotechnology, Harbin 150090, China2.Biological and Environmental Science School, Harbin Normal University, Harbin 150025, China |
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| Abstract: | The biodegradation of aniline of different concentrations by low temperature-resistance strain JH-9 under 10 ℃ was studied, and reaction dynamic equations, such as Monod equation and Haldane equation were adopted to fit the degradation process. Experimental results showed that strain JH-9 was able to degradeaniline at low temperature. With the same initial strain concentration, the degradation rate mainly depended on initial aniline mass concentration. With low organic compound concentration (<550 mg/L), aniline was completely removed in120 h and the average degradation rate improved with the increase of aniline mass concentration. During the degradation process which was in accordance with Monod equation, microorganism was retrained by aniline; with high aniline mass concentration (>550 mg/L), the degradation rate was low and the degradation process was in accordance with Haldane equation. |
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| Keywords: | tow temperature-resistance strain JH-9 low temperature aniline kinetics biodegradation |
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