PROCEDURE FOR CONTINUOUS ANAEROBIC BIOLOGICAL DEGRADATION IN WASTEWATER.

摘要

The continuous biological digestion of organic compounds in communal or industrial waste water is carried out in a preacidification step (1) and/or a methane step (2), the waste water being brought into contact with sludges (36, 36') of selectively adapted microorganisms under anaerobic conditions. In order to avoid remixing of purified waste water with untreated waste water and to ensure optimum contact between the reaction components without reactor inserts, the waste water is passed in a parallel current through a reactor (3, 3') as a mixture with the microorganism sludge (36, 36'), the flow direction (9, 9', 10, 10') being reversed one or more times in a vertical direction, and a biological filter zone (38, 38') containing enlarged microorganisms being formed in a lower reversal area (12, 12') and a microorganism vortex zone (37, 37') being formed in the central and upper reactor regions lying above it. IMAGE