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耐低温菌JH-9降解苯胺的动力学研究
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
作者姓名:韩 瑜  马 放  山 丹  王继华  郭静波  王 晨
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
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
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. 

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
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
Authors:HAN Yu  MA Fang  SHAN Dan  WANG Ji-hu  GUO Jing-bo  WANG Chen
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
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. 
Keywords:tow temperature-resistance strain JH-9    low temperature    aniline    kinetics   biodegradation
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