Method for producing oxygen granules of active sludge, especially for the treatment of municipal wastewater

摘要

The way in which oxygen granules of activated sludge are produced, in particular for the purification of urban sludge, is that in the first stage the activated sludge from the sludge treatment plant is introduced into the positive reactor field and then, in the second stage, the two-stroke Ca2+ cations for runways 0125 mM/L are added together with the sludge cations? Ca2+? 1 mM/L, where pH in the reactor is maintained at a favourable level 7 to 7,5, followed by aeration and substrate loss, followed by an active precipitation of a favourable 5-min precipitation in a short time,and the added Ca2+ cations as a result of interaction with the extracted end-of-phase aeration polymers form a highly sophisticated structure in which numerous bacterial cells are immobilised and oxygen granules of active sediment with high concentration of biomass are obtained in the reactor.