Transferability of Results from Laboratory Scale to Biogas Plants at Real Scale

Hans Oechsner, Benedikt Huelsemann, Carlos M. Martínez Hernández

Abstract

The costs of biogas plants are determined by the costs of the substrates they use, representing 40 to 60% of the annual operating costs of these in Germany, with energy crops being widely used as substrates in anaerobic digesters. The determination of methane performance in different substrates via Batch tests is carried out using the German VDI-4630 standard in approximately 40 different laboratories installed in Germany. The results obtained in the methane yield of the substrates valued at the laboratory level show great correspondence with those achieved at real scale in the active plants. The Biogas Guide compiled by KTBL German Agency based on the results obtained by several well-known laboratories and institutes in that country, has shown that the accuracy of these results can be taken into account for the economic planning studies of new biogas plants. Fermentation tests are the most accurate method for determining the methane yield of the parts of the plants under analysis. In recent times, the use of biogas laboratories has increased in the validation of methane yield at the laboratory scale of different substrates, motivating the cooperation and use of standard research protocols among them, thus ensuring a high quality of the results obtained and its replicability.

Keywords

Batch tests; anaerobic digester; German standard; VDI-4630

Full Text:

PDF HTML XML-JATS EPUB

References

AMON, T.; AMON, B.; KRYVORUCHKO, V.; ZOLLITSCH, W.; MAYER, K.; GRUBER, L.: “Biogas production from maize and dairy cattle manure—influence of biomass composition on the methane yield”, Agriculture, Ecosystems & Environment, 118(1-4): 173-182, 2007, ISSN: 0167-8809.

BASERGA, U.: Landwirtschaftliche CO-Vergarungs-Biogasanlagen. Biogas aus organischen Reststoffen und Energiegras, Nr. 512, Inst. FAT-Berichte, Germany, 1998.

BUSWELL, M.A.: “Anaerobic fermentations”, Bulletin (Illinois State Water Survey) no. 32, 1939.

CZEPUCK, K.; OECHSNER, H.; SCHUMACHER, B.; LEMMER, A.: “Hohenheim biogas yield test-comparing theoretical yields with actual batch yields.”, Landtechnik, 61(2): 82-118, 2006, ISSN: 0023-8082.

FNR: Ergebnisse des Biogas-Messprogramms, [en línea], Hrsg. FNR, Gülzow, Germany, 2005, Disponible en: https://mediathek.fnr.de/ergebnisse-des-biogas-messprogramms.html.

FNR: Biogas-Messprogramm II - 61 Biogasanlagen im Vergleich, [en línea], Hrsg. FNR, Gülzow, Germany, 2009, Disponible en: https://mediathek.fnr.de/biogas-messprogramm-ii-61-biogasanlagen-im-vergleich.html.

HOLLIGER, C.; ALVES, M.; ANDRADE, D.; ANGELIDAKI, I.; ASTALS, S.; BAIER, U.; BOUGRIER, C.; BUFFIÈRE, P.; CARBALLA, M.; DE WILDE, V.: “Towards a standardization of biomethane potential tests”, Water Science and Technology, 74(11): 2515-2522, 2016, ISSN: 0273-1223.

KAISER, F.L.: Einfluss der stofflichen Zusammensetzung auf die Verdaulichkeit nachwachsender Rohstoffe beim anaeroben Abbau in Biogasreaktoren, Technische Universität München, Dissertation, München, Germany, 2007.

KEYMER, U.; SCHILCHER, A.: Considerations for the calculation of theoretical gas yields in biogas plants of fermentable substrates, Landtechnik-Bericht 32, 1999.

KTBL: Batchtests - Methoden und Übertragbarkeit auf Praxisanlagen; Ta-gungsband Biogas, VDI-Berichte 2121, VDI-Verlag (Hrsg.),Düsseldorf, 2011.

MÖNCH, T.M.: “Enhancement of methane production with horse manure supplement and pretreatment in a full-scale biogas process”, Energy, 73: 523-530, 2014, ISSN: 0360-5442.

MUKENGELE, M.; OECHSNER, H.: “Effect of ensiling on the specific methane yield of maize”, Landtechnik, 62(1): 20-21, 2007.

MUKENGELE, M.M.: Biochemical composition of biomass and its impact on the prediction of the specific methane yield potential, [en línea], University of Hohenheim, MEG Forschungsbericht Agrartechnik, 579, Dissertation, Germany, 2017, Disponible en: http://opus.uni-hohenheim.de/volltexte/2017/1358/.

RUILE, S.; SCHMITZ, S.; MÖNCH, T.M.; OECHSNER, H.: “Degradation efficiency of agricultural biogas plants–a full-scale study”, Bioresource Technology, 178: 341-349, 2015, ISSN: 0960-8524.

VDI 4630: Fermentation of organic substances – characterization of substrate, sampling, collection of material data, fermentation tests, no. ICS 13.030.30, 27.190, Inst. VDI-Verlag, Düsseldorf, Germany, 201.

Refbacks

  • There are currently no refbacks.