VORRICHTUNG ZUM EINTRAGEN VON SAUERSTOFFHALTIGEN GASEN IN ABWASSER

摘要

1445214 Aerating liquids HOECHST AG 28 June 1974 [8 Sept 1973] 28816/74 Heading B1C Apparatus 'for the aeration of effluent comprises an oblong basin 1 having an aeration device comprising a plurality of elongated parallelepidal plastics diffusion chambers 5 open at the bottom and having perforations 10 in the upper surface, arranged parallel to the longer side of the basin. The perforations have counterbores 14 which may include an angleαof at least 90‹ and preferably 120‹ and leave a residual wall thicknessαof 0.2-2 mm and preferably 1 mm. The chambers may be of polyethylene.