Green gas “There's some research out there on odour mitigation, but we don't want to promise anything,” Donnelly said. “But logically, we feel like we can prevent odour by putting the manure into a biodigester, which captures the gas.”
The proposed biodigester would process about 10 tonnes of manure each month by an anaerobic process and would make renewable natural gas that Rimrock would sell as green fuel.
https://www.okotokstoday.ca/local-news/biodigester-to-ease-odour-woes-5833406