基于ETS活性的有机物降解与硝化过程中微生物动力学

doi:10.3969/j.issn.0438-1157.2014.02.043

化工学报 ›› 2014, Vol. 65 ›› Issue (2): 672-678.DOI: 10.3969/j.issn.0438-1157.2014.02.043

基于ETS活性的有机物降解与硝化过程中微生物动力学

王建辉^1,2, 尹军¹, 陆海^1,2, 王源铭², 林英姿²

1 哈尔滨工业大学市政环境工程学院, 黑龙江哈尔滨 150090;
2 吉林建筑工程学院松辽流域水环境教育部重点实验室, 吉林长春 130118

收稿日期:2013-05-10 修回日期:2013-07-11 出版日期:2014-02-05 发布日期:2014-02-05
通讯作者: 尹军
基金资助:
国家水体污染控制与治理科技重大专项（2012ZX 07408001-07，2012ZX07201001-01）。

Sludge microbial kinetics in organic matter biodegradation and nitrification based on ETS activity

WANG Jianhui^1,2, YIN Jun¹, LU Hai^1,2, WANG Yuanming², LIN Yingzi²

1 School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China;
2 Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Architectural and Civil Engineering Institute, Changchun 130118, Jilin, China

Received:2013-05-10 Revised:2013-07-11 Online:2014-02-05 Published:2014-02-05
Supported by:
supported by the National Water Pollution Control and Management Technology Major Projects (2012ZX07408001-07, 2012ZX07201001-01).

摘要/Abstract

摘要： 通过考察有机物生物降解和氨氮生物硝化过程中活性污泥电子传递体系（ETS）活性的变化规律，研究了ETS活性表征污泥生物活性的可行性，结合米门公式分析了有机物生物降解和硝化反应过程生物活性动力学。试验结果表明，活性污泥的ETS活性可以有效地揭示出有机物生物降解和氨氮生物硝化反应的进程，同时对系统受到的有机物和氨氮冲击负荷及硝化过程中碱度的变化有着灵敏的反映，这说明用ETS活性表征污泥的生物活性是可行的；有机物生物降解过程生物活性米氏常数K_s^T=368.9 mg·L^-1，U_m^T=90.9 mg TF·（g TSS·h）^-1，K_s^I=88.42 mg·L^-1，U_m^I=277.8 mg INTF·（g TSS·h）^-1；氨氮硝化过程生物活性米氏常数K_s^T=16.89 mg·L^-1，U_m^T=34.6 mg TF·（g TSS·h）^-1， K_s^I=6.0 mg·L^-1，U_m^I=196.08 mg INTF·（g TSS·h）^-1；生物活性动力学分析进一步验证了进行有机物生物降解的异养菌生长速率高于进行硝化反应的自养型硝化菌。

关键词: 有机物降解, 硝化反应, ETS活性, 活性污泥, 动力学

Abstract: The variation of electron transport system（ETS）activity during organic matter biodegradation and nitrification was studied to evaluate the feasibility of assessment of biological activity of activated sludge by ETS activity. The Michaelis - Menten equation was used to analyze the kinetics of organic matter oxidation and nitrification. The experimental result showed that ETS activity could reflect the reaction course of organic matter biodegradation and nitrification, and the changes in loading and alkalinity. Therefore, ETS activity could be used as a parameter for assessing the biological activity of activated sludge. The Michaelis constants were K_s^T=368.9 mg·L^-1, U_m^T=90.9 mg TF·(g TSS·h)^-1, K_s^I=88.42 mg·L^-1, U_m^I=277.8 mg INTF·(g TSS·h)^-1 during organic matter biodegradation. The Michaelis constants were K_s^T=16.89 mg·L^-1,U_m^T=34.6 mg TF·(g TSS·h)^-1, K_s^T=6.0 mg·L^-1, U_m^I=196.08 mg INTF·(g TSS·h)^-1 during nitrification. The results further showed that heterotrophic bacteria growth rate in biodegradation of organic matter was higher than autotrophic denitrifying bacteria growth rate in nitrification of organic matter.

Key words: organic matter biodegradation, nitrification, ETS activity, activated sludge, kinetics

中图分类号:

X703

王建辉, 尹军, 陆海, 王源铭, 林英姿. 基于ETS活性的有机物降解与硝化过程中微生物动力学[J]. 化工学报, 2014, 65(2): 672-678.

WANG Jianhui, YIN Jun, LU Hai, WANG Yuanming, LIN Yingzi. Sludge microbial kinetics in organic matter biodegradation and nitrification based on ETS activity[J]. CIESC Journal, 2014, 65(2): 672-678.

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基于ETS活性的有机物降解与硝化过程中微生物动力学

Sludge microbial kinetics in organic matter biodegradation and nitrification based on ETS activity

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