Apparatus and method for dissolving a gas in an aqueous stream

摘要: A method of dissolving a gas in water comprising directing an aqueous stream to rotate downwardly moving spiral from high downward velocity lower and diffusing into the so as produce small bubbles which are rotated generally path by thereby providing long flow distance over have increased contact time with facilitate dissolution therein rising is progressively opposed higher portion stream. vessel for practicing can vertical axis be circular horizontal section most its height; upper ends; include conical apex at end vessel; inlet tangential communicating interior space near that fed through rotates diffuser