Liquid purification or separation – With gas-liquid surface contact means
Patent
1986-04-16
1987-06-30
Castel, Benoit
Liquid purification or separation
With gas-liquid surface contact means
261 92, 210619, C02F 308
Patent
active
046768920
ABSTRACT:
Simple and inexpensive hollow reactors in the form of spirals of corrugated plastic tubes, which are coiled in the same direction and clamped in large numbers adjacent to each other in a drum-like cage for use in biological waste water purification. This drum-like cage is mounted so that it can rotate in a waste-water-filled tank, in such a way that only the outer spiral turns project above the water level. During rotation in the opposite direction, each emerging tube end admits air, which on further rotation is trapped as a bubble in the spiral and is transported because of its inertia to the underwater spiral end. In this process the liquid contained in front of it in the tube is displaced and an equal volume is admitted at the inlet opening from the surrounding waste water. The air emerging from the inner spiral end rises upwards in individual bubbles between the spiral reactors. While part of the emerging waste water is entrained by the suction effect of the bubbles, the other part can flow away out of the laterally open inside space.
REFERENCES:
patent: 4267051 (1981-05-01), Uhlmann
patent: 4284503 (1981-08-01), Stahler
patent: 4318810 (1982-03-01), Stahler
patent: 4351721 (1982-09-01), Frandsen
patent: 4540491 (1985-09-01), Zimmer
Castel Benoit
Grabowski Tropfkorper-Technik GmbH
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