Optimization of  low temperature biogas production from biomass by anaerobic digestion Marek Markowski, Ireneusz Białobrze...
Contents <ul><li>The aim of the study </li></ul><ul><li>The experiment </li></ul><ul><li>Calculations </li></ul><ul><li>Op...
The aim of the study The aim of the study was to determine the influence of some geometric parameters of the bioreactor on...
The experiment <ul><li>Material:   </li></ul><ul><li>sludge from anaerobic dairy wastewater treatment plant (water with mi...
The experiment ← Fig.1: The two-stage mixed flow reactor scheme. ↓ Fig.2: Simplified flow scheme of the methanogenic part ...
<ul><li>Measured values: </li></ul><ul><li>amount of biogas and its content (CH 4 , CO 2 , N 2 , O 2 ) – every 3 hours, </...
Calculations
Calculations The heat production :
Calculations The  Monod’s model: The  Contois’s model:
Microbial growth rate depending on temperature: Calculations
Calculations Initial conditions:
Optimization
Optimization The total biogas production was related with the flow rate, which depends on geometry of bioreactor, so:
Results Fig.3: Biomass concentration in the flow symmetry axis
Results Fig. 4 : Substrate concentration in the  flow  symmetry axis
Results Fig. 5 : Product   concentration in the symmetry axis
Results Fig. 6 : Temperature   in the symmetry axis
Results Fig. 6 : Temperature   in the symmetry axis
Conclusions <ul><li>There are significant arguments for applying optimization techniques on the stage of  construction of ...
Thank you for your attention! mgr inż. Konrad Nowak
References <ul><li>Amon, T., Amon, B., Kryvoruchko, V., Machmüller, A., Hopfner-Sixt, K., Bodiroza, V., Hrbek, R., Friedel...
<ul><li>Batstone, D.J., Keller, J., Angelidaki, I., Kalyuzhnyi, S.V., Pavlostathis, S.G., Rozzi, A., Sanders, W.T.M., Sieg...
<ul><li>Contois, D. E., 1959. Kinetics of bacterial growth: relationship between population density and specific growth ra...
<ul><li>Kalloum, S., Bouabdessalem, H., Touzi, A., Iddou, A., Ouali, M.S., 2011. Biogas production from the sludge of the ...
<ul><li>Salomoni, C., Caputo, A., Bonoli, M. , Francioso, O., Rodriguez-Estrada, M.T., Palenzona, D., 2011.  Enhanced meth...
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4.13 - "Optimization of low temperature biogas production from biomass by anaerobic digestion" - Marek Markowski, Ireneusz Bialobrzewski, Marcin Zielinski, Marcin Debowski, Miroslaw Krzemieniewski [EN]

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  • ( przeczytać ) I’d like to say, that this study and this approach, is one of the first steps of modelling phenomena s occurring in this bioreactor during anaerobic digestion of biomass .
  • 4.13 - "Optimization of low temperature biogas production from biomass by anaerobic digestion" - Marek Markowski, Ireneusz Bialobrzewski, Marcin Zielinski, Marcin Debowski, Miroslaw Krzemieniewski [EN]

    1. 1. Optimization of low temperature biogas production from biomass by anaerobic digestion Marek Markowski, Ireneusz Białobrzewski, Marcin Zieliński, Marcin Dębowski, Mirosław Krzemieniewski University of Warmia and Mazury in Olsztyn
    2. 2. Contents <ul><li>The aim of the study </li></ul><ul><li>The experiment </li></ul><ul><li>Calculations </li></ul><ul><li>Optimization </li></ul><ul><li>Results </li></ul><ul><li>Conclusions </li></ul>
    3. 3. The aim of the study The aim of the study was to determine the influence of some geometric parameters of the bioreactor on the performance of the continuous-flow-type low temperature biogas production from biomass by anaerobic digestion and to determine the optimal geometric parameters of the digester.
    4. 4. The experiment <ul><li>Material: </li></ul><ul><li>sludge from anaerobic dairy wastewater treatment plant (water with milk powder 1g/1l) </li></ul><ul><li>Duration of experiment: </li></ul><ul><li>60 days </li></ul><ul><li>Characteristic of the process: </li></ul><ul><li>continuous-mode </li></ul><ul><li>two-stage flux (descending and ascending) </li></ul><ul><li>low temperature (33±2°C) anaerobic digestion (me zophilic digestion ) </li></ul>
    5. 5. The experiment ← Fig.1: The two-stage mixed flow reactor scheme. ↓ Fig.2: Simplified flow scheme of the methanogenic part of the bioreactor for computational calculations
    6. 6. <ul><li>Measured values: </li></ul><ul><li>amount of biogas and its content (CH 4 , CO 2 , N 2 , O 2 ) – every 3 hours, </li></ul><ul><li>temperature , </li></ul><ul><li>pH , </li></ul><ul><li>content of organic compounds (COD) , </li></ul><ul><li>total suspended solid content , </li></ul><ul><li>flow rate </li></ul>The experiment
    7. 7. Calculations
    8. 8. Calculations The heat production :
    9. 9. Calculations The Monod’s model: The Contois’s model:
    10. 10. Microbial growth rate depending on temperature: Calculations
    11. 11. Calculations Initial conditions:
    12. 12. Optimization
    13. 13. Optimization The total biogas production was related with the flow rate, which depends on geometry of bioreactor, so:
    14. 14. Results Fig.3: Biomass concentration in the flow symmetry axis
    15. 15. Results Fig. 4 : Substrate concentration in the flow symmetry axis
    16. 16. Results Fig. 5 : Product concentration in the symmetry axis
    17. 17. Results Fig. 6 : Temperature in the symmetry axis
    18. 18. Results Fig. 6 : Temperature in the symmetry axis
    19. 19. Conclusions <ul><li>There are significant arguments for applying optimization techniques on the stage of construction of anaerobic bioreactors. </li></ul><ul><li>The new bioreactor ’ s geometr y should be optimized for every different biomass and substrate applied, because the optimal dimensions of the separating cylinder depend on the input data. </li></ul><ul><li>In this case differences between Monod’s and Contois’s models are insignificant. </li></ul>
    20. 20. Thank you for your attention! mgr inż. Konrad Nowak
    21. 21. References <ul><li>Amon, T., Amon, B., Kryvoruchko, V., Machmüller, A., Hopfner-Sixt, K., Bodiroza, V., Hrbek, R., Friedel, J., Pötsch, E., Wagentristl, H., Schreiner, M., Zollitsch, W., Pötsch, E., 2007. Methane production trough anaerobic digestion of various energy crops grown in sustainable crop rotations. Bioresource Technology, 98(17), 3204-3212. </li></ul><ul><li>Andara, A.R, Esteban, J.M.L., 1999. Kinetic study of the anaerobic digestion of the solid fraction of piggery slurries. Biomass and Bioenergy, 17, 435-443. </li></ul><ul><li>Angelidaki, I., Ellegaard, L., Ahring, B.K., 1993. A Mathematical model for dynamic simulation of anaerobic digestion of complex substrates: Focusing on ammonia inhibition. Biotechnology and Bioengineering, 42, 159-166. </li></ul><ul><li>Angelidaki, I., Ellegaard, L., Ahring, B. K., 1999. A comprehensive model of anaerobic bioconversion of complex substrates to biogas. Biotechnology and Bioengineering, 63(3), 363-372. </li></ul><ul><li>[…] </li></ul>
    22. 22. <ul><li>Batstone, D.J., Keller, J., Angelidaki, I., Kalyuzhnyi, S.V., Pavlostathis, S.G., Rozzi, A., Sanders, W.T.M., Siegrist, H., Vavilin, V.A., 2002. The IWA Anaerobic Digestion Model No 1 (ADM1). Water Science and Technology, 45(10), 65-73. </li></ul><ul><li>Beba, A., Atalay, F. S., 1986. Mathematical models for methane reduction in batch fermenters. Biomass. 11, 173-184. </li></ul><ul><li>Buswell, A.M., Mueller, H.F. 1952. Mechanisms of methane fermentation. Industrial and Engineering Chemistry, 44, 550-552. </li></ul><ul><li>Cavinato, C., Bolzonella, D., Fatone, F., Cecchi, F., Pavan, P., 2011. Optimization of two-phase thermophilic anaerobic digestion of biowaste for hydrogen and methane production through reject water recirculation. Bioresource technology. (In press). doi:10.1016/j.biortech.2011.03.084. </li></ul><ul><li>Chen, Y. R. and Hashimoto, A. G., 1978. Kinetics of methane fermentation. Biotechnology and Bioengineering Symposium, 8, 269-282. </li></ul><ul><li>Chen, Y. R. and Hashimoto, A. G., 1980. Substrate utilization kinetic model for biological treatment processes. Biotechnology and Bioengineering, 22(10), 2081-2095. </li></ul><ul><li>[…] </li></ul>
    23. 23. <ul><li>Contois, D. E., 1959. Kinetics of bacterial growth: relationship between population density and specific growth rate of continuous cultures. Journal of General Microbiology, 21, 40–50. </li></ul><ul><li>Dhar, B.R., Youssef, E., Nakhla, G., Ray, M.B., 2011. Pretreatment of municipal waste activated sludge for volatile sulfur compounds control in anaerobic digestion. Bioresource Technology, 102, 3776–3782. </li></ul><ul><li>Gerber, M., Span, R., 2008. An analysis of available mathematical models for anaerobic digestion of organic substances for production of biogas. Proceedings of the International Gas Union Research Conference (IGRC 2008), Paris. (http://www.ruhr-uni-bochum.de/thermo/Forschung/pdf /IGRC_Full_Paper_Paris.pdf, Accessed on 13.07.2011). </li></ul><ul><li>Hussain, A., 1998. Mathematical models of the kinetics of anaerobic digestion – selected review. Biomass and Bioenergy, 14(5/6), 561-571). </li></ul><ul><li>Julien, C., Whitford, W., 2007. Bioreactor monitoring, modeling, and simulation. Bioprocess International, Suplement, 5(1), 10-17. </li></ul><ul><li>[…] </li></ul>
    24. 24. <ul><li>Kalloum, S., Bouabdessalem, H., Touzi, A., Iddou, A., Ouali, M.S., 2011. Biogas production from the sludge of the municipal wastewater treatment plant of Adrar city (southwest of Algeria). Biomass and Bioenergy, doi:10.1016/j.biombioe.2011.02.012. </li></ul><ul><li>Linke, B., 2006. Kinetic study of thermophilic anaerobic digestion of solid wastes from potato processing. Biomass and Bioenergy, 30, 892–896. </li></ul><ul><li>Mataalvarez, J., Mace, S., Llabres, P., 2000. Anaerobic digestion of organic solid wastes—an overview of research achievements and perspectives. Bioresource Technology, 74, 3–16. </li></ul><ul><li>Monod J., 1942. Recherches sur la croissance des cultures bacteriennes. Ed. Hermann & Cie. </li></ul><ul><li>Mosey, F. E., 1983. Mathematical modelling of the anaerobic digestion process: regulatory mechanisms for the formation of short-chain volatile acids from glucose. Water Science and Technology, 15, 209–232. </li></ul><ul><li>Rao, M. S., Singh, S. P., 2004. Bioenergy conversion studies of organic fraction of MSW: Kinetic studies and gas yield-organic loading relationships for process optimisation. Bioresource Technology, 95(2), 173-185. </li></ul><ul><li>[…] </li></ul>
    25. 25. <ul><li>Salomoni, C., Caputo, A., Bonoli, M. , Francioso, O., Rodriguez-Estrada, M.T., Palenzona, D., 2011. Enhanced methane production in a two-phase anaerobic digestion plant, after CO2 capture and addition to organic wastes, Bioresource Technology, 102(11), 6443-6448. </li></ul><ul><li>Shanmugam, P., Horan, N.J., 2009. Optimising the biogas production from leather fleshing waste by co-digestion with MSW. Bioresource Technology, 100, 4117–4120. </li></ul><ul><li>Sangsurasak, P., Mitchell, D.A., 1998. Validation of a model describing two-dimensional heat transfer during solid-state fermentation in packed bed bioreactors. Biotechnology and Bioengineering, 60(6), 739-749. </li></ul><ul><li>Zieliński, M., Krzemieniewski, M., Dębowski, M., 2009. Technological effects of dairy wastewater treatment on anaerobic bed with activated medium. Polish Journal of Environmental Studies, Series of Monographs, 5, 83 – 87. </li></ul>

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