Ring channel aeration apparatus and method

Details Ring channel aeration apparatus and method Ring channel aeration apparatus and method

C - Chemistry, Metallurgy

02

F

362/9

C02F 3/22 (2006.01)

Patent

CA 1148673

ABSTRACT OF THE DISCLOSURE In a ring channel aeration system,circulation is provided by one or more hydraulic jumps while the major portion of the energy consumed in aeration is allocated to the release of oxidative process gas through horizontally non-propulsive bubble release means having an oxygen transfer efficiency of at least about 6. The hydraulic jump(s) may be powered by discharge of gas (e.g. the same gas used for aeration) through gas discharge means, in which case the system of gas discharge means and bubble release means may have an overall oxygen transfer efficiency of at least about 6. The invention has advantages of flexibility and resultant energy savings as compared to single device circulation/aeration systems, in that excessive energy need not be consumed in aeration to obtain the requisite circu- lation and vice versa.

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