HIGH TEMPERATURE ANAEROBIC PROCESSING METHOD AND DEVICE

摘要

PURPOSE:To perform a high temperature anaerobic processing efficiently under high loads by stably propagating granule sludge of high density having large settling property and high activity when organic waste liquid is anaerobically processed by an upward flow sludge blanket method in a high temperature region. CONSTITUTION:Organic waste liquid is brought into contact with acid generating bacteria in an acid generating tank 2 in an anaerobic atmosphere to generate acid and part of the organic waste liquid is separately fed thereinto from a separate feed passage 7 to adjust a ratio of sugar of acid generation waste liquid/CODCr(wt.ratio) to 0.1-0.5, which waste liquid is passed upwardly to a methane generating tank 3 to form a sludge blanket of granule sludge, whereby a high temperature anaerobic processing is performed at 50-65 deg.C.