Biogas Generators
Biology: AQA GCSE Higher, topic 7.2.14
Biogas Generators
Biogas generators are devices that can produce methane gas as a fuel for purposes such as cooking, heating or refrigeration. The inputs depend on the scale of the generator:
Large-scale
- Large-scale generators take waste from sugar factories or sewage works.
Small-scale
- Small-scale generators are used by households and farms.
- Typical inputs include egested (excreted) material from humans and animals, as well as farm and garden waste.
Test yourself on Biogas Generators
Where do large-scale generators take their waste from?
What type of biogas generator would a farmer use to produce methane from her farm's waste for cooking and heating?
What can biogas be used as a fuel for?
What type of biogas generator would a sewage treatment works use to produce methane from its own waste?
A household produces its own human waste at home, rather than sending it to a sewage works. What type of biogas generator would best process this waste?