PLANT FOR LIQUID AERATION Russian patent published in 1999 - IPC

FIELD: chemical, microbiological industries, purification of sewage. SUBSTANCE: plant for liquid aeration includes tank for aerated liquid, pump, feeding tube with aeration extension piece and ring put uniaxially to extension piece which inner surface carries blades positioned at angle with respect to it and which outer surface has radial vanes. Free edges of inner inclined blades are connected with the aid of additional ring to bushing put on vertical axis for movement. Rings are located in tank with aerated liquid at depth determined by formula h=2.28.dk, where h is depth, m; dk is diameter of outer ring, m. EFFECT: increased efficiency of mass transfer. 3 dwg