Evaluating limiting steps of anaerobic degradation of food waste based on methane production tests
This research adapted a batch test for biochemical methane production (BMP) to follow the degradation of complex compounds such as proteins and vegetable oils. The test measured the transformation of albumin and olive oil into methane under mesophilic and thermophilic conditions and assess limiting...
| Veröffentlicht in: | Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 57(2008), 3 vom: 29., Seite 419-22 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2008
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| Zugriff auf das übergeordnete Werk: | Water science and technology : a journal of the International Association on Water Pollution Research |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Albumins Amino Acids Olive Oil Plant Oils Oleic Acid 2UMI9U37CP Methane OP0UW79H66 mehr... |
| Zusammenfassung: | This research adapted a batch test for biochemical methane production (BMP) to follow the degradation of complex compounds such as proteins and vegetable oils. The test measured the transformation of albumin and olive oil into methane under mesophilic and thermophilic conditions and assess limiting step in the overall degradation process. The thermophilic sludge used for the BMP tests was adapted during ten month from mesophilic sludge while being fed food waste. As compared to acetic acid, the specific rate of transformation of albumin and olive oil into methane reached 22 and 51%, respectively, under mesophilic conditions. Acetoclastic methanogenesis was not the limiting step in the presence of albumin or olive oil (and its monomer-like molecules such as amino acids, glycerol and oleic acid). Rather, the degradation of albumin was restricted by the presence of proteins. The thermophilically adapted sludge showed good proteolytic activity, but its acetoclastic methanogens were unable to degrade olive oil, because of the inhibitory effect of oleic acid |
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| Beschreibung: | Date Completed 24.06.2008 Date Revised 19.11.2015 published: Print Citation Status MEDLINE |
| ISSN: | 0273-1223 |
| DOI: | 10.2166/wst.2008.060 |