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Energy production from by-products of sugar production from sugar beet in agricultural biogas plants

Project Leader
Amon Thomas, Project Leader
Duration:
01.04.2005-31.12.2005
Type of Research
Applied Research
Staff
Wagentristl Helmut, Project Staff
Amon Barbara, Project Staff
Kryvoruchko Vitaliy, Project Staff (bis 29.02.2008)
Schreiner Matthias, Project Staff
Milovanovic Dejan, Project Staff (bis 30.06.2008)
BOKU Research Units
Division of Agricultural Engineering
Experimental Farm Großenzersdorf
Institute of Food Science
Funded by
Agrana, Donau-City-Straße 9, A-1220 Wien, Austria
Abstract
During the processing of sugar beets, by-products as sugar beet pulp (SBP) and sugar beet tail (SBT) are coming out of production process. The SBP is coming out during the sugar extraction process whilst the SBT will be produced during cleaning and cutting sugar beet. Until now the most of them were used as an animal food, but unfortunately the consumption of such by-products as food fed to livestock is continuously reducing, that allows the usage of SBP and SBT for energy production through anaerobic digestion in biogas plants.

Aims of the research project:
• To determinate a specific methane yield of sugar beet pulp (SBP) and sugar beet tail (SBT) in mono digestion.
• To identify the most suitable mix of sugar beet by-products with a mixture composed of cattle manure, maize silage, Sudan grass, clover grass.
• To explore the influence of drying on specific methane yield of sugar beet pulp

Methods:
Substance and energy turnover during anaerobic digestion were measured in eudiometer batch experiments at 37.5 °C that was conducted according to DIN 38414/Teil 8 (1985) bzw. VDI 4630 (2006).

Results:
The results of the present experiments demonstrate that mesophilic fermentation of by-products from sugar beet processing with the aim of producing biogas is viable and sensible. The development of the cumulative specific methane yield showed that the micro organisms were not inhibited and were well adapted to the new substrates. In the present project, high values for the specific methane yield were achieved ranging between 430 and 480 lN kg-1 VS.
Supplementation of by-products to the mixture of energy crops and animal manure:
The supplementation of 70 % SBT to the mixture of energy crops and animal manure resulted in an increasing of specific methane yield of the mixture at 6%. The addition of 30% and 50% SBT to this mixture showed only a little increasing of specific methane yield at 1-2%. The added methane yield of the mixture was calculated as difference between calculated methane yield on the basis of methane yield of mono digested substrates and measured methane yield of the mixture. The additional methane yield could be a result of reciprocal complementation of used substrates.
The supplementation of SBP to the mixture of energy crops and animal manure produced no additional methane compared to calculated specific methane yield of the mixture, whereas the total methane yield of the mixture is rising.
Drying of by-products:
It was also demonstrated that drying of sugar beet pulp and sugar beet tail significantly reduced the achieved methane yield at 30 to 43 % respectively. A cause of the decreasing of specific methane yield could be an outgasing of volatile fatty acids from beet pulp and sugar beet tail silage during the drying process.
Keywords
environmental research; sugar research; agricultural ecology; renewable energy; renewable resources; renewable resources; agricultural ecology; environmental protection;
biogas production; methane yield; by-products from sugar production;
Publications

Amon, T., Amon, B., Hopfner-Sixt, K., Kryvoruchko, V., Bodiroza, V. (2006): Climate protection through renewable energy from biogas production.
[9. Österreichischer Klimatag 2006 - Forschung zu Klima, Klimawandel und Auswirkungen in Österreich, Vienna, Austria, 16.03.2006 - 17.03.2006]

In: Klimaforschungsinitiative AustroClim: 9. Österreichischer Klimatag 2006 „Forschung zu Klima, Klimawandel und Auswirkungen in Österreich“, 16. – 17. März 2006, Wien, P16

Amon, T., Kryvoruchko, V., Amon, B., Bodiroza, V., Zollitsch, W., Boxberger, J., Pötsch, E. (2006): Strategien zur nachhaltigen Biogaserzeugung aus Energiepflanzen durch standortangepasste Fruchtfolgesysteme, Sortenwahl und optimale Ernte.
[Wirtschaftsmotor Biogas; 15. Jahrestagung des Fachverbandes Biogas e.V., Hanover, Germany, 25. – 27. Januar]

In: Fachverband Biogas e.V.: Wirtschaftsmotor Biogas; 15. Jahrestagung des Fachverbandes Biogas e.V., 25. – 27. Januar, Hannover, Deutschland, 99 – 111

Amon, T., Pötsch, E., Amon, B., Kryvoruchko, V., Bodiroza, V., Zollitsch, W. (2006): Methane production from cereals, sun flower and maize: Optimisation of the methane yield per hectare through time of harvesting, variety and pre-treatment.
[28th International Exhibition-Congress in Chemical Engineering, Environmental Protection and Biotechnology ACHEMA 2006, Frankfurt am Main, Germany, 15.05.2006 - 19.05.2006]

In: Dechema e.V.: ACHEMA 2006, 28th International Exhibition-Congress in Chemical Engineering, Environmental Protection and Biotechnology, 15 – 19 May 2006, Frankfurt am Main / Germany,, 271

Amon T. (2006): Biogas als alleinige Lösung?.

IKZ-Haustechnik, 2/2006, 8

Amon T. (2006): Boku-Biogas Branche bündelt Kompetenzen.

Die österreichische Bauernzeitung, 06.04.2006, 14

Amon T. (2006): Biogas-Know how nicht aufs Spiel setzen.

Blick ins Land, 05/2006, 37

Amon T. (2006): Halber Gasbedarf wächst auf den Feldern.

Die Presse, 14.04.06, 20 FullText

Amon T. (2006): Biogas kann Österreich unabhängig machen.

Wirtschaftsblatt, 21.04.2006, 12

Amon T., Hopfner-Sixt, K. (2006): Biogas: ein möglicher Weg aus der Energiekrise.

Umweltjournal, 3/2006, 11

Amon T. (2006): Abdeckung Gasbedarf durch Biogas.

APA Nachricht, 22. 02. 2006

Amon T. (2006): Forum Biogas neu gegründet.

APA Nachricht, 24. 03. 2006

Boxberger, J., Amon T., Moitzi, G. (2006): Energietechnik – alternative Energien.

In: VDMA Landtechnik, VDI-MEG, KTBL, Jahrbuch der Agrartechnik, 18, 219-224; VDI-Verlag, Düsseldorf; ISBN ISBN 3-7843-3384-2

Amon, T., Amon, B., Kryvoruchko, V., Bodiroza, V., Pötsch, E. (2005): Methane production from maize, grassland, animal manures, and glycerine through anaerobic digestion.
[Greenhouse Gases and Animal Agriculture GGAA 2005, Zürich, Switzerland, 20.09.2005 - 24.09.2005]

In: C.R. Soliva, J. Takahashi and M. Kreuzer: Greenhouse Gases and Animal Agriculture (GGAA 2005), 20 – 24 September 2005, ETH Zürich, Switzerland, 179-183, Zürich

Amon, T., Hopfner-Sixt, K., Amon, B., Kryvoruchko, V. (2005): Forum Biogas Network from Natural Resources to Application.
[14th European Biomass Conference & Exhibition; Biomass for Energy Industry and Climate Protection, Paris, France, 17th – 21th October]

In: ETA Florence: 14th European Biomass Conference & Exhibition; Biomass for Energy Industry and Climate Protection, 17th – 21th October, Paris, France, V2B IV.11

Vorträge

Amon, T. (2006): Biogas production from terrestrial and marine biomass.

Recora Treffen, 29.05.2006, Gödöllo/Ungarn

Amon, T. (2006): Vorstellung der Biogasanalytik in Wien, Ringversuch zur Ermittlung des Biogasertrages aus nachwachsenden Rohstoffen.

Ringversuch Biogas, 29.03.2006, Freising/Deutschland

Amon, T. (2006): Biogas von Äckern und Wiesen, ein Energieträger der Zukunft.

Agrarpolitisches Seminar, 20.02.2006, Wien

Amon, T. (2006): Rohstoffpflanzen für Biogasanlagen – Rohstoffaufbringung und Energieeffizienz.

Wintertagung, 14.02.2006, Hollabrunn

Amon, T., , Linz (2006): Strategien zur nachhaltigen Biogaserzeugung aus Energiepflanzen durch standortangepasste Fruchtfolgesysteme, Sortenwahl und optimale Ernte.

Fachkongress Biogas, 22.02.2006, Linz

Amon, T. (2005): Gaserträge von Kofermenten in landwirtschaftlichen Biogasanlagen.

2. Mitteldeutscher Bioenenergietag, 29.04.2005, Leipzig

Amon, T. (2005): Anaerobic digestion of energy crops – potentials, state of the art of the art of biogas technology, economic efficiency and future developments.

Kanadische Wirtschaftsdelegation, 11.11.2005, Wien

Amon, T. (2005): Erneuerbare Energien – Effekte für die Landwirtschaft.

Symposium über Österreichs Energie Zukunft, 3.10.2005, Wien

Amon, T. (2005): Biogaserzeugung durch Fermentation aus Rohstoffen aus der Landwirtschaft.

Tagung Nachhaltige Energiesysteme, 20.05.2005, Mureck

Amon, T. (2005): Methanerzeugung aus Energiepflanzen.

BIOGAS Energieträger der Zukunft. Veranstaltung des Forum Biogas Österreich, 2. Dez. 2005, Wien

Amon, T.. (unveröffentlichter Vortrag) (2005): Biogas vom Acker.

3. Tagung Landtechnik in den Ackerbaugebieten in Ungarn, Slowakei und Österreich, 03.05.2005, Nitra/Slowakei

Amon, T. Kryvoruchko, V. (2005): Biogasausbeute bei Rübenpressschnitzeln versus Silomais.

Betaexpo 2005, 23.09.2005, Langenrohr/Tulln

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