Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea?
The anaerobic digestion of New Zealand low-input dairy farms has previously been evaluated for energy production, but farming systems have recently become more intensive with increased feed supplementation and feed replacement; therefore, we are studying how these changes affect the overall energy p...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/6/2859 |
| _version_ | 1797612044959088640 |
|---|---|
| author | Marianne Hull-Cantillo Mark Lay Peter Kovalsky |
| author_facet | Marianne Hull-Cantillo Mark Lay Peter Kovalsky |
| author_sort | Marianne Hull-Cantillo |
| collection | DOAJ |
| description | The anaerobic digestion of New Zealand low-input dairy farms has previously been evaluated for energy production, but farming systems have recently become more intensive with increased feed supplementation and feed replacement; therefore, we are studying how these changes affect the overall energy production for water heating. A combination of literature review, surveys, chemical analyses, biomethane potential analysis, and modeling were used for this study. On a case study farm with a solid separator, it was found that 558 MJ/day and 176–861 MJ/day could be produced with the solid and liquid portions of effluent, respectively. There is enough biogas to satisfy the dairy farm’s water heating requirements with a tankless water heater. |
| first_indexed | 2024-03-11T06:36:29Z |
| format | Article |
| id | doaj.art-0c955424588c402b8d3d8a08040ce957 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T06:36:29Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0c955424588c402b8d3d8a08040ce9572023-11-17T10:51:58ZengMDPI AGEnergies1996-10732023-03-01166285910.3390/en16062859Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea?Marianne Hull-Cantillo0Mark Lay1Peter Kovalsky2School of Engineering, University of Waikato, Private Bag 3105, Hamilton 3240, New ZealandSchool of Engineering, University of Waikato, Private Bag 3105, Hamilton 3240, New ZealandSchool of Engineering, University of Waikato, Private Bag 3105, Hamilton 3240, New ZealandThe anaerobic digestion of New Zealand low-input dairy farms has previously been evaluated for energy production, but farming systems have recently become more intensive with increased feed supplementation and feed replacement; therefore, we are studying how these changes affect the overall energy production for water heating. A combination of literature review, surveys, chemical analyses, biomethane potential analysis, and modeling were used for this study. On a case study farm with a solid separator, it was found that 558 MJ/day and 176–861 MJ/day could be produced with the solid and liquid portions of effluent, respectively. There is enough biogas to satisfy the dairy farm’s water heating requirements with a tankless water heater.https://www.mdpi.com/1996-1073/16/6/2859anaerobic digestiondairyeffluentmanuresolid separationpre-treatment |
| spellingShingle | Marianne Hull-Cantillo Mark Lay Peter Kovalsky Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? Energies anaerobic digestion dairy effluent manure solid separation pre-treatment |
| title | Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? |
| title_full | Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? |
| title_fullStr | Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? |
| title_full_unstemmed | Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? |
| title_short | Anaerobic Digestion of Dairy Effluent in New Zealand, Time to Revisit the Idea? |
| title_sort | anaerobic digestion of dairy effluent in new zealand time to revisit the idea |
| topic | anaerobic digestion dairy effluent manure solid separation pre-treatment |
| url | https://www.mdpi.com/1996-1073/16/6/2859 |
| work_keys_str_mv | AT mariannehullcantillo anaerobicdigestionofdairyeffluentinnewzealandtimetorevisittheidea AT marklay anaerobicdigestionofdairyeffluentinnewzealandtimetorevisittheidea AT peterkovalsky anaerobicdigestionofdairyeffluentinnewzealandtimetorevisittheidea |