DIY Biogas Digester Research

Small biodigester build video

 

IBC Tote based digester design

  • Using a garbage disposal as an input grinder
  • Algae mitigation
  • Tank insulation

 

Larger build

  • hydrogen sulfide filter to clean the methane
  • flashback arrestor
  • methane storage with inverted barrel in water for pressure and isolation.

Community-Scale Biogas Digester

Includes condenser (yellow) which removes evaporated water from biogas.

California Farm Case Study

At 40 minutes in if farmer talks about how the biogas collected from cow manure is enough to power the farm and all the vehicles

https://pca.st/episode/eb5dcea0-4e98-4899-89f3-3324e4533d0d

 

Compressing Biogas for use as CNG Alternative

https://www.haug.ch/en/references-applications/biogas-biomethane.html