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Article: Oxygenation performance of a laboratory-scale Speece Cone hypolimnetic aerator: preliminary assessment.(Technical report)
- Article from:
- Canadian Journal of Civil Engineering
- Article date:
- July 1, 2008
- Author:
CopyrightCOPYRIGHT 2008 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract: A prototype laboratory-scale Speece Cone hypolimnetic aerator was used to examine the effect of oxygen input rate and outlet port water velocity on oxygen transfer, using four standard units of measure for quantifying oxygen transfer: (i) the oxygen transfer coefficient at 20 [degrees]C, [K.sub.L][a.sub.20] ([h.sup.-1]); (ii) the standard oxygen transfer rate (SOTR) (g [O.sub.2]*[h.sup.-1]); (iii) the standard aeration efficiency (SAE) (g [O.sub.2] kW*[h.sup.-1]); and (iv) the standard oxygen transfer efficiency (SOTE) (%). The maximum inlet velocity (i.e., 70 cm*[s.sup.-1]) was only 23% of the recommended design velocity (i.e., 305 cm*[s.sup.-1]), and the ...
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