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Mesophilic and Thermophilic Anaerobic Digestion of Model Kitchen Waste with Variation of Fat Content
Author(s) -
SobonMühlenbrock Elena,
Schlienz Markus,
Greger Manfred
Publication year - 2020
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201900094
Subject(s) - mesophile , biogas , thermophile , anaerobic digestion , chemistry , rapeseed , pulp and paper industry , biogas production , food science , biofuel , volume (thermodynamics) , waste management , degradation (telecommunications) , digestion (alchemy) , food waste , methane , biochemistry , biology , chromatography , organic chemistry , bacteria , enzyme , engineering , telecommunications , genetics , physics , quantum mechanics
Anaerobic digestion of model kitchen waste (MKW) produced on basis of real kitchen waste (KW) is studied in batch tests. The impact of fat content of three MKWs (14.7 %, 23 %, and 27.2 % rapeseed oil content) on the biogas production at mesophilic and thermophilic conditions and two loadings is examined. The loading of 5 g VS L −1 leads to fast degradation under both temperature modes and the volume of biogas produced is only weakly correlated to the oil content. For the loading of 25 g VS L −1 a strong retardation of biogas production, high concentration of volatile fatty acids and no correlation of oil content is observed.