A Rational Design Procedure for A erated Lagoons
497
b '
=
endogenous rate coefficient (day'
1 )
N
=
oxygen transfer efficiency, field conditions
N Q
=
oxygen transfer efficiency, standard conditions
C s w
=
saturation concentration, D.O. in wastewater
C L
=
operating D.O. level in aeration basin
a
=
oxygen transfer coefficient
K
=
constant characteristic of aeration device
P v
=
horsepower per 1000 gal. of basin liquid
N s
=
oxygen transferred from the liquid spray
REFERENCES
1. ECKENFELDER, W. W., Jr., Water Quality Engineering for Practicing Engineers, Professional
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presented at Second International Symposium for Waste Treatment Lagoons, June 2 3 - 2 5 , 1970,
Muehlebach Hotel, Kansas City, Missouri.
3.WEDDLE, C.L., and JENKINS, D., "The Viability and Activity of Activated Sludge", Water
Research, Vol.5, No.8 (August 1971).
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Industrial Waste Conference, Purdue University (1961).
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Quality Improvement, Vol.1, University of Texas Press, Austin, Texas, 1967.
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Lagoons, JWPCF, April, 1960.
22. YANG, CT., PhD Thesis, University of Texas, 1969.
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