Anlage zur Behandlung von mit oberflächenaktiven Substanzen verschmutzten Abwässern

摘要

The plant for treating wastewater polluted by surfactants comprises a tank (1) containing at least one supporting bed (2,2a) made of inert granular material. The tank (1) is connected to means (4,5,6,) for blowing air into the bed (2,2a) and to means for making wastewater to be treated to flow in equicurrent or in countercurrent in the bed (2,2a) as well.