Household biogas digesters in China
Digestores de biogás domésticos en China
- Date
- años 1970 · confidence medium
- Place
- Chengdu, Sichuan, China
- Credited to
- Peasants and rural authorities of Sichuan
- Field
- Matter & energy
What it is
The state promoted small buried concrete digesters that produce methane from manure and kitchen waste for cooking and lighting. They supplied energy to tens of millions of rural households.
Digesters existed in Guangdong as early as the 1920s and the national programme was rolled out in the 1970s; exact figures vary between sources.
What it led to
- China's rural biogas programme
- similar digesters in India, Nepal and Vietnam
- less firewood and less indoor air pollution