Plug Flow Digestion of Dairy Manure at Different Solids Concentrations
A pilot scale 1 m super(3) plug flow digester was operated for 18 months to determine the rate of solids accumulation for fresh dairy manure at 9.0%, 12.4%, and 15.2% TS. Temperature was maintained at 35 plus or minus 1 degree C, and a 15 d retention time was established. Greatest gas production (1....
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| Veröffentlicht in: | Transactions of the ASAE 1984, Vol.27 (3), p.889-893 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | A pilot scale 1 m super(3) plug flow digester was operated for 18 months to determine the rate of solids accumulation for fresh dairy manure at 9.0%, 12.4%, and 15.2% TS. Temperature was maintained at 35 plus or minus 1 degree C, and a 15 d retention time was established. Greatest gas production (1.31 gas vol/digester vol/day) with minimal solids accumulation occurred with the 15.2% TS feedstock. Least gas production (0.60 gas vol/digester vol/day) and greatest solids accumulation occurred with the 9.0% TS feedstock. At this latter concentration solids accumulated at a rate of 0.3% digester volume per day. |
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| ISSN: | 0001-2351 2151-0059 2151-0059 |
| DOI: | 10.13031/2013.32890 |