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Titel (primär) How to avoid foam formation in biogas plants by coarse grain anaerobic digestion
Autor Moeller, L.; Krieg, F.; Zehnsdorf, A.; Müller, R.A.;
Journal / Serie Chemical Engineering & Technology
Erscheinungsjahr 2016
Department UBZ;
Band/Volume 39
Heft 4
Sprache englisch;
POF III (gesamt) T13;
UFZ Querschnittsthemen RU6
Abstract The grain used in biogas production is generally coarse grain. However, the anaerobic digestion of coarse grain often leads to excessive foam formation in biogas reactors. Comprehensive foaming experiments using six sample grain species, namely, triticale, wheat, rye, barley, oats, and millet, were carried out in order to investigate the reasons for grain-based foam formation and to develop methods for minimizing foaming problems. It was found that the intensity of foam formation depended not only on the grain species, but also on the processing of the coarse grain: the finer the grain was ground, the higher the foam content in the test bottles. The most intensive foam formation was observed for wheat and triticale. The addition of soybean oil to coarse grain led to a reduction in foam intensity.
ID 17287
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=17287
Moeller, L., Krieg, F., Zehnsdorf, A., Müller, R.A. (2016):
How to avoid foam formation in biogas plants by coarse grain anaerobic digestion
Chem. Eng. Technol. 39 (4), 673 - 679