Studies on reaction techniques concerning reactor design for the anaerobic degradation of complex substrates with the example of the methanation of effluents in the fermentation industry

摘要: Two fixed-bed loop reactors were used to evaluate singleand separated-phase anaerobic treatments of a high strength waste-water from ethanol fermentation. The one-phase system consisted an reactor containing both acidogenic as well methanogenic populations allowing complete conversion the carbon source into gaseous end products and biomass. two-phase second operated unit, which was proceeded by CSTR for acidification, connected in series sequential acidogenesis methanogenesis organic components. under steady state variable process conditions. By gradually increasing feed supply systems, maximum turnover COD determined. consistently gave better quality effluent with lower suspended solids total COD. Maximum loading rates elimination phase over two times higher than that system. Process stability also higher. On overloading methane accumulation different fatty acids within observed. Hydrogen concentration biogas can be reliable indicator overloadings. At least, continuous online monitoring hydrogen gas should provide convenient alternative other analyses control.