高级搜索

膜生物反应器中生物膜的生长特性

,  ,  ,  , 

downloadPDF

上一篇

下一篇

苗峻赫, 陈蓉, 廖强, 王永忠, 朱恂. 膜生物反应器中生物膜的生长特性[J]. 环境工程学报, 2013, 7(2): 631-636.
引用本文: 苗峻赫, 陈蓉, 廖强, 王永忠, 朱恂. 膜生物反应器中生物膜的生长特性[J]. 环境工程学报, 2013, 7(2): 631-636.
shu
Miao Junhe, Chen Rong, Liao Qiang, Wang Yongzhong, Zhu Xun. Growth characteristics of biofilm in membrane bioreactor[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 631-636.
Citation: Miao Junhe, Chen Rong, Liao Qiang, Wang Yongzhong, Zhu Xun. Growth characteristics of biofilm in membrane bioreactor[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 631-636.
shu

膜生物反应器中生物膜的生长特性

  • 1.

    重庆大学低品位能源利用及系统教育部重点实验室,重庆 400030

  • 2.

    重庆大学工程热物理研究所,重庆 400030

  • 基金项目:

    国家自然科学基金资助项目(50806086)

    国家杰出青年基金资助项目(50825602)

    重庆市杰出青年基金(cstc2012jjjq90003)

  • 中图分类号: X505

Growth characteristics of biofilm in membrane bioreactor

  • 1.

    Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China

  • 2.

    Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China

  • Fund Project:

  • 摘要: 实验采用经甲苯培养驯化而成的单一假单胞菌菌种,通过分析平板式生物膜反应器内,不同阶段假单胞细菌生物膜干重、厚度、活性生物量和生物种群分布的变化,研究生物膜特性与降解效率之间的关系。实验结果表明,在挂膜初期生物膜迅速生长,生物量以及生物膜干重增长很快,有利于甲苯及营养物质的传输,降解效率也快速提升。随着生物膜的生长,生物量及干重也逐步增加,厚度逐渐增加使传质阻力不断增大,生物膜上层微生物的有机底物供应不足,使生物膜上层结构稀疏,最终维持一个甲苯的总传输量与生化降解量的平衡,生物量的生长与衰亡也达到动态平衡,形成了一个较高且稳定的降解效率。
    Abstract: A planar membrane bioreactor with pseudomonas bacteria was developed to explore the characteristics of the biofilm formation in terms of the dry weight of formed biofilm, thickness, active biomass as well as its morphology and structure and elucidate the relationship between the biofilm characteristics and removal efficiency in the formation of biofilm. Experimental results showed that at the beginning of the biofilm formation, the biofilm grew fast and the biomass and dry weight rapidly increased as well, facilitating the transfer of both toluene and inorganic nutrients and thus improving the removal efficiency. As the biofilm further grew, the biomass and dry weight gradually increased, leading to an increase in the biofilm thickness. The increased thickness in turn increased the mass transfer resistance so that the supply of toluene for bacteria on the top of biofilm was insufficient, making the biofilm loose in this zone. Eventually, the supplied toluene was balanced by the toluene biodegraded by bacteria and the growth and death of bacterial was also in dynamic equilibrium. As a result, a relatively high and stable toluene biodegradation performance was achieved.
  • 加载中
  • [1] 段高飞,韩峰,李京宝,等. 细菌生物膜相关感染的防治方法研究进展. 中国海洋大学学报, 2010,40(5):107-111 Duan G. F., Han F., Li J. B., et al. Research progress on prevention and cure of baterial biofilm. Periodical of Ocean University of China, 2010,40(5):107-111(in Chinese)
    [2] Hood S. K., Zottola E. A. Biofilms in food processing. Food Control, 1995,6(1):9-18
    [3] Gristina A. G. Biomaterial-centered infection-microbial adhesion versus tissue integration. Science, 1987,237(4822):1588-1595
    [4] Tommaso G., Varesche M. B. Morphological observation and microbial population dynamics in anaerobic polyurethane foam biofilm degrading gelatin. Brazilian Journal of Chemical Engineering, 2002,19(3):287-292
    [5] Zbifniew Lewandowski. Structrue and function of biofilm, In: Biofilms: Recent Advances in Their Study and Control. L.V. Evans (ed). Harwood Academic Publishers, 2000
    [6] 唐婳,刘国生,谢志雄,等. 细菌生物膜的结构及形成机制研究进展. 氨基酸和生物资源, 2006,28(3):30-33 Tang H., Liu G. S., Xie Z. X., et al. Progress of investigation on the structure and formation of bacterial biofilm. Amino Acids & Biotic Resources, 2006,28(3):30-33(in Chinese)
    [7] Rinaudi L., Fujishige N. A., Hirsch A. M., et al. Effects of nutritional and environmental conditions on Sinorhizobium meliloti biofilm formation. Research in Microbiology, 2006,157(9):867-875
    [8] Pereira M. O., Morin P., Viera M. J. A versatile reactor for continuous monitoring of biofilm properties in laboratory and industrial conditions. Applied Microbiology, 2002,34(1):22-26
    [9] Robie J. Lipid analysis in microbial ecology. Bioscience, 1989,39(8):535-541
    [10] Zelles L., Bai Q. Y., Ma R. X., et al. Microbial biomass, metabolic activity and nutritional status determined from fatty acid patterns and poly-hydroxybutyrate in agriculturally-managed soils. Soil Biology and Biochemistry, 1994,26(4):439-466
    [11] Perry G. J., Volkman J. K., Johns R. B., et al. Fatty acids of bacterial origin in contemporary marine sediments. Geochim Cosmochim, 1979,43(11):1715-1725
    [12] Lazarova V., Manem J. Biofilm characterization and activity analysis in water and wastewater treatment. Water Research, 1995,29(10):2227-2245
    [13] Findlay R. H., King G. M., Walting L. Efficacy of phospholipid analysis in determining microbial biomass in sediments. Applied and Environmental Microbiology, 1989,55(11):2888-2893
    [14] Wang J. Z., Summers R. S., Miltner R. J. Biofiltration performance:Part l. Relationship to biomass. American Water Works Association Journal, 1995,87(12):55-63
    [15] Aelterman P., Freguia S., Keller J., et al. The anode potential regulates the bacterial activity in microbial fuel cells. Commun. Agric. Appl. Biol. Sci., 2008,78(3):409-418
    [16] Porges N., Jasewicz L., Hoover S. R. Aerobic treatment of dairy wastes. Appl. Microbiol., 1953,1(5):262-270
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1849
  • HTML全文浏览数:  905
  • PDF下载数:  1146
  • 施引文献:  0
出版历程
  • 收稿日期:  2012-01-09
  • 刊出日期:  2013-02-02

膜生物反应器中生物膜的生长特性

  • 1.  重庆大学低品位能源利用及系统教育部重点实验室,重庆 400030
  • 2.  重庆大学工程热物理研究所,重庆 400030
  • 收稿日期:  2012-01-09
基金项目:

国家自然科学基金资助项目(50806086)

国家杰出青年基金资助项目(50825602)

重庆市杰出青年基金(cstc2012jjjq90003)

摘要: 实验采用经甲苯培养驯化而成的单一假单胞菌菌种,通过分析平板式生物膜反应器内,不同阶段假单胞细菌生物膜干重、厚度、活性生物量和生物种群分布的变化,研究生物膜特性与降解效率之间的关系。实验结果表明,在挂膜初期生物膜迅速生长,生物量以及生物膜干重增长很快,有利于甲苯及营养物质的传输,降解效率也快速提升。随着生物膜的生长,生物量及干重也逐步增加,厚度逐渐增加使传质阻力不断增大,生物膜上层微生物的有机底物供应不足,使生物膜上层结构稀疏,最终维持一个甲苯的总传输量与生化降解量的平衡,生物量的生长与衰亡也达到动态平衡,形成了一个较高且稳定的降解效率。

English Abstract

    全文HTML

参考文献 (16)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心