SCI和EI收录∣中国化工学会会刊

›› 2010, Vol. 18 ›› Issue (6): 905-909.

• • 上一篇    下一篇

Biodegradation Kinetics for Pre-treatment of Klebsiella pneumoniae Waste with Autothermal Thermophilic Aerobic Digestion

刘景明1,2, 孙冬冬1, 刘慧1, 聂英斌3, 朱志荣2   

  1. 1. School of Chemical Engineering, Northeast Dianli University, Jilin 132012, China;
    2. Department of Chemistry, Tongji University, Shanghai 200092, China;
    3. Department of Chemical Engineering, Jilin Vocational College of Industry and Technology, Jilin 132013, China
  • 收稿日期:2010-06-11 修回日期:2010-10-12 出版日期:2010-12-28 发布日期:2010-12-28
  • 通讯作者: ZHU Zhirong, E-mail: zhuzhirong@tongji.edu.cn
  • 基金资助:
    Supported by the Doctoral Foundation of Northeast Dianli University (BSJXM-200814);Foundations of Bureau of Jilin Province (2008424)

Biodegradation Kinetics for Pre-treatment of Klebsiella pneumoniae Waste with Autothermal Thermophilic Aerobic Digestion

LIU Jingming1,2, SUN Dongdong1, LIU Hui1, NIE Yingbin3, ZHU Zhirong2   

  1. 1. School of Chemical Engineering, Northeast Dianli University, Jilin 132012, China;
    2. Department of Chemistry, Tongji University, Shanghai 200092, China;
    3. Department of Chemical Engineering, Jilin Vocational College of Industry and Technology, Jilin 132013, China
  • Received:2010-06-11 Revised:2010-10-12 Online:2010-12-28 Published:2010-12-28
  • Supported by:
    Supported by the Doctoral Foundation of Northeast Dianli University (BSJXM-200814);Foundations of Bureau of Jilin Province (2008424)

摘要: Biodegradation parameters and kinetic characteristics for pre-treating waste strains of Klebsiella pneumoniae were studied in laboratory scale with an insulated reactor by an innovative technique,autothermal thermophilic aerobic digestion(ATAD). Based on an Arrhenius-type equation,an empirical model was developed to correlate the removal of total suspended solid(TSS) with the initial TSS concentration,influent reaction temperature,aeration rate and stirring rate. The reaction temperatures of the ATAD system could be raised from the ambient temperatures of 25℃ to a maximum temperature of 65℃. The exponentials for the initial TSS concentration,aeration rate and stirring rate were 1.579,-0.8175 and -0.6549,respectively,and the apparent activation energy was 6.8774 kJ·mol-1. The correlation coefficient for the pre-exponential factor was 0.9223. The TSS removal efficiency predicted by the model was validated with an actual test,showing a maximum relative deviation of 10.79%. The new model has a good practicability.

关键词: Klebsiella pneumoniae, autothermal thermophilic aerobic digestion, biodegradation kinetics, empirical model

Abstract: Biodegradation parameters and kinetic characteristics for pre-treating waste strains of Klebsiella pneumoniae were studied in laboratory scale with an insulated reactor by an innovative technique,autothermal thermophilic aerobic digestion(ATAD). Based on an Arrhenius-type equation,an empirical model was developed to correlate the removal of total suspended solid(TSS) with the initial TSS concentration,influent reaction temperature,aeration rate and stirring rate. The reaction temperatures of the ATAD system could be raised from the ambient temperatures of 25℃ to a maximum temperature of 65℃. The exponentials for the initial TSS concentration,aeration rate and stirring rate were 1.579,-0.8175 and -0.6549,respectively,and the apparent activation energy was 6.8774 kJ·mol-1. The correlation coefficient for the pre-exponential factor was 0.9223. The TSS removal efficiency predicted by the model was validated with an actual test,showing a maximum relative deviation of 10.79%. The new model has a good practicability.

Key words: Klebsiella pneumoniae, autothermal thermophilic aerobic digestion, biodegradation kinetics, empirical model