Method for direct, selective selection of a desired, low sludge index in the SBR process

摘要

A method for selecting an activated sludge having a predetermined low sludge index in wastewater treatment in sequencing batch reactors, characterized by a) introducing wastewater into a sequencing batch reactor, b) settling the activated sludge, c) removing the settling sludge and / or settled, upper sludge fraction with high sludge index as excess sludge, d) determining the sludge index of the remaining sludge and e) repeating steps b) to d) until the predetermined, low sludge index is reached.