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| biog:biogas [2025/12/05 09:57] – external edit 127.0.0.1 | biog:biogas [2025/12/17 04:30] (current) – external edit 127.0.0.1 |
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| <caption> | <caption> |
| Small experimental biogas digester. Waste material is put into the oil drum; the neoprene cover rises when full of gas; the gas is tapped into a container (upside-down plastic drum with water seal) which rises as more gas enters. When full, gas can be tapped off and used via a little gas ring. | _Small experimental biogas digester. Waste material is put into the oil drum; the neoprene cover rises when full of gas; the gas is tapped into a container (upside-down plastic drum with water seal) which rises as more gas enters. When full, gas can be tapped off and used via a little gas ring._ |
| </caption> | </caption> |
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| <caption> | <caption> |
| Mini-biogas experiment, working on exactly the same principle as the digester above. | _Mini-biogas experiment, working on exactly the same principle as the digester above._ |
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| </caption> | </caption> |
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| <caption> | <caption> |
| Simplified cross-section of a type of digester used for animal and human waste all over China and the far east. A toilet can be incorporated into this system. Image: [Tkarcher](https://upload.wikimedia.org/wikipedia/commons/2/28/Biogas_plant.svg), [CC BY-SA](https://creativecommons.org/licenses/by-sa/4.0/) | _Simplified cross-section of a type of digester used for animal and human waste all over China and the far east. A toilet can be incorporated into this system. Image: [Tkarcher](https://upload.wikimedia.org/wikipedia/commons/2/28/Biogas_plant.svg), [CC BY-SA](https://creativecommons.org/licenses/by-sa/4.0/)_ |
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| </caption> | </caption> |
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| <caption> | <caption> |
| Adding food waste to a small digester. | _Adding food waste to a small digester._ |
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| </caption> | </caption> |
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| <caption> | <caption> |
| Biogas digester on a family farm in India; there’s no reason that they can’t be used successfully in the West too. | _Biogas digester on a family farm in India; there’s no reason that they can’t be used successfully in the West too._ |
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| </caption> | </caption> |
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| <caption> | <caption> |
| Boiling water with biogas. | _Boiling water with biogas._ |
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| </caption> | </caption> |
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| <caption> | <caption> |
| Temperature range for microbes. | _Temperature range for microbes._ |
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| </caption> | </caption> |
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| Methane is explosive – see [Adelaide University's website](https://web.archive.org/web/20140325204535/http://www.adelaide.edu.au/biogas/safety/) for safety considerations. | Methane is explosive – see [Adelaide University's website](https://web.archive.org/web/20140325204535/http://www.adelaide.edu.au/biogas/safety/) for safety considerations. |
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| ## Further resources | ## Further resources |
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| | - ## [Anaerobic Digestion (AD)](https://www.biogas-info.co.uk/) - Information Portal on Anaerobic Digestion |
| | - ## [Energy Justice Network](https://energyjustice.net/) - anti-landfill gas site |
| | - ## [Biogas Technology](https://biogas-technology.blogspot.com/2012/10/biogas-plant-construction-plant-guide.html) - small biogas plant construction guide |
| | - ## [Build a Biogas Plant](https://www.build-a-biogas-plant.com/) - anti-landfill gas site |
| | - ## [Open Ideas](https://www.lowimpact.org/wp-content/uploads/Open-Ideas-Domestic-biogas-projects-in-developing-countries.pdf) - domestic biogas plants in developing countries |
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| ## Specialist(s) | ## Specialist curators of this topic |
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