In-vessel co-composting of horse stable bedding waste and blood meal at different C/N ratios : process evaluation
Abattoir blood meal is rich in nitrogen and its potential as a co-composting material for horse stable bedding waste was evaluated at two C/N ratios -32 (LBM, low blood meal) and 16 (HBM, high blood meal) - to improve the nutrient contents of the final compost. The mix was composted for 7 days in a...
| Veröffentlicht in: | Environmental technology. - 1998. - 33(2012), 22-24 vom: 04. Dez., Seite 2561-7 |
|---|---|
| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2012
|
| Zugriff auf das übergeordnete Werk: | Environmental technology |
| Schlagworte: | Journal Article Soil Carbon 7440-44-0 Nitrogen N762921K75 |
| Zusammenfassung: | Abattoir blood meal is rich in nitrogen and its potential as a co-composting material for horse stable bedding waste was evaluated at two C/N ratios -32 (LBM, low blood meal) and 16 (HBM, high blood meal) - to improve the nutrient contents of the final compost. The mix was composted for 7 days in a 10 tonne/day in-vessel composter and cured aerobically. After 56 days ofcomposting, the ammoniacal-N, CO2 evolution rate and C/N ratio of both LBM and HBM were within the guideline values; however, delayed decomposition and lower seed germination index were observed with HBM. In addition, HBM resulted in 84% loss of the initial ammoniacal-N. Almost similar organic decompositions, 62.4% and 59.6% with LBM and HBM, respectively, were achieved. However, a stable compost product can be obtained within 6-7 weeks with LBM, whereas >8 weeks were required for HBM composting. Therefore, co-composting at the C/N ratio of 32 is recommended to achieve odour-free and faster composting |
|---|---|
| Beschreibung: | Date Completed 14.03.2013 Date Revised 16.11.2017 published: Print Citation Status MEDLINE |
| ISSN: | 0959-3330 |