Method and device to produce biogas with high methane rate, by dosingly supplying hydrogen-producing bacteria, which are cultured in hydrogen and methane fermenter, and dosingly introducing gaseous hydrogen into methane fermenter

摘要: The method and device for fermentatively producing biogas with high methane rate, comprise dosingly supplying hydrogen-producing bacteria (6d), which are cultured in a hydrogen fermenter (3) (4), introducing gaseous into the fermenter, specially prepared organic material (6e) microfinely distributes and/or contains metastably bonded form, ensuring stable microorganisms loading rates (OLR greater than 2.5 kg(TS) m -> 3>d 1>) using an intelligent process controller. (3), specific gasification rate (GPR 0.5 3>/kg(TS)) controller, adjusting supply, microorganism additive supply introduction coordinated manner microbiological situation adaptive carrying out anaerobic fermentation combined pack-agitated special fermenter. control is carried on basis of algorithms such as model reference self-tuning-regulator. regulator uses gas concentration input parameters. actual value temperature or pressure used additional total quantity at exit post-fermenter (8) priority target parameter, time intervals correcting variables. fermenters secondary variable, receives weighting factor less 1 error computation deviation. A s p e zgreater 3>/kg o(TS)) reached hybrid simultaneous low retention (HRT 20 d), 3.0 kg o(TS) indicated by pH 7.2-7.7. Escherichia coliand/or Lactobacilli-containing mixed culturesand Clostridia-containing cultures, selected, enriched concentrated conditioning process, disposed over fluidized bed construction present lower half container paddle stirring blades. flowed through from downside. introduced injection device. blades placed vertically arranged agitator axis. One positioned above bed. to inlet bottom area container. substrate supplied inlet, so that flows An outlet itself upper third wet process. coupled one another regarding flow. combination Several switched rows. base materials completely partially injected subsequent different exposed operational parameters (adjusted value, temperature, OLR HRT) regulator. added consists mixture acids pure carbonic acetic acid lactic acid, cellulose. produced, produced plant raw residual fermenting biomass. renewable sources liquid-phase form state. stability controlled laser-optical infrared sensor on-line measurement content dry substances.