Liquid purification or separation – Processes – Treatment by living organism
Patent
1981-10-19
1984-05-29
Therkorn, Ernest G.
Liquid purification or separation
Processes
Treatment by living organism
210629, 2101953, 210220, 210926, C02F 312
Patent
active
044513739
ABSTRACT:
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 circulation and vice versa.
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Therkorn Ernest G.
Water Pollution Control Corp.
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