Mathematical interpretation of mass transfer process in anaerobic bioreactors

Authors

  • Людмила Ивановна Ружинская National technical university of Ukraine "Kyiv Polytechnic Institute" str. Sholem aleichem 9, apt. 115, Kiev, Ukraine, 02156, Ukraine
  • Анастасия Алексеевна Фоменкова National technical university of Ukraine "Kyiv Polytechnic Institute" str. Sholem aleichem 9, apt. 115, Kiev, Ukraine, 02156, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.14763

Keywords:

biogas, immobilized microflora, bioreactor, mathematical model, mass transfer

Abstract

The article considers the methanogenesis in bioreactors with immobilized microflora on fixed media. The processes of decomposition of organic pollution of the wastewater and the formation of metabolic products are analyzed. At the same time, the decomposition of organic pollution is considered from the standpoint of a two-stage process. As the first stage, the hydrolysis and acid production is considered, as the second - methanogenesis. On the basis of this process the spatial distribution of acid and methanogenic microorganisms in the anaerobic bioreactor has been suggested, and a model of mass transfer in a bioreactor has been built. As a calculated model, the motion of the fluid in the channel formed by sheets of biofilm carrier was taken. At the two-dimensional motion of a fluid in a channel, 2 types of the main substances mass transfer are considered, which are involved in the process of anaerobic digestion: by the convective diffusion in the core of the flow and by the molecular diffusion in the boundary wall layer and biofilm

Author Biographies

Людмила Ивановна Ружинская, National technical university of Ukraine "Kyiv Polytechnic Institute" str. Sholem aleichem 9, apt. 115, Kiev, Ukraine, 02156

Docent

Department of biotechnics and engineering 

Анастасия Алексеевна Фоменкова, National technical university of Ukraine "Kyiv Polytechnic Institute" str. Sholem aleichem 9, apt. 115, Kiev, Ukraine, 02156

PhD student

Department of biotechnics and engineering 

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Published

2013-05-19

How to Cite

Ружинская, Л. И., & Фоменкова, А. А. (2013). Mathematical interpretation of mass transfer process in anaerobic bioreactors. Eastern-European Journal of Enterprise Technologies, 3(4(63), 43–48. https://doi.org/10.15587/1729-4061.2013.14763

Issue

Vol. 3 No. 4(63) (2013): Mathematics and cybernetics - fundamental ans applied aspects

Section

Mathematics and Cybernetics - applied aspects

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Copyright (c) 2014 Людмила Ивановна Ружинская, Анастасия Алексеевна Фоменкова

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