| 摘要 |
A biogas system operates according to the principle of dry fermentation with multiple biogas fermenters that are run in batch mode. One of the biogas fermenters has just been loaded with fresh biomass and the other biogas fermenters are in the state of producing biogas with a higher concentration of methane. The biogas fermenter just loaded with fresh biomass is closed and connected to the other biogas fermenters that are already producing biogas. In addition, there is a return of the biogas mixture from the freshly loaded biogas fermenter to at least one of the other biogas fermenters producing biogas. After expiration of a defined time duration, the return of the biogas mixture from the freshly loaded biogas fermenter is stopped. The defined time duration is determined based on the concentration of methane in the mixture of biogas generated in all of the biogas fermenters. |
