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Reference Category Journals
DOI 10.1002/ceat.201500473
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Title (Primary) Statistical interpretation of semi-continuous anaerobic digestion experiments on the laboratory scale
Author Hofmann, J.; Peltri, G.; Sträuber, H.; Müller, L.; Schumacher, B.; Müller, U.; Liebetrau, J.
Source Titel Chemical Engineering & Technology
Year 2016
Department UMB
Volume 39
Issue 4
Page From 643
Page To 651
Language englisch
Keywords Biogas; Continuous stirred-tank reactor; Disintegration; Replication; Significance
UFZ wide themes RU4;
Abstract The importance of thorough experimental design, implementation, and interpretation of laboratory experiments is known but rarely considered in continuous anaerobic digestion experiments. Especially in the evaluation of small effects on gas yields, e.g., by substrate disintegration, the usual methods such as the use of single digesters or the mere comparison of mean values often reach their limits. A proper statistical interpretation will be demonstrated on four examples of semi-continuous laboratory-scale anaerobic digestion experiments that investigated the effects of substrate disintegration on biogas yields. Power analysis was performed for one exemplary experimental setup. In this particular case, the power analysis showed that, with digester duplicates per treatment, a minimum 6 % difference in biogas yield could be significantly detected.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=17248
Hofmann, J., Peltri, G., Sträuber, H., Müller, L., Schumacher, B., Müller, U., Liebetrau, J. (2016):
Statistical interpretation of semi-continuous anaerobic digestion experiments on the laboratory scale
Chem. Eng. Technol. 39 (4), 643 - 651 10.1002/ceat.201500473