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Hyperoxygen concentrations in the hypolimnion produced by injection of liquid oxygen
Author(s) -
Fast Arlo W.,
Overholtz William J.,
Tubb Richard A.
Publication year - 1977
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr013i002p00474
Subject(s) - hypolimnion , oxygen , thermal stratification , epilimnion , environmental science , environmental chemistry , stratification (seeds) , chemistry , hydrology (agriculture) , geology , oceanography , eutrophication , nutrient , biology , geotechnical engineering , seed dormancy , thermocline , germination , botany , organic chemistry , dormancy
The hypolimnion of a quarry pond at Ottoville, Ohio, was oxygenated during the summers of 1973 and 1974. The highest hypolimnetic oxygen concentrations attained were 8.0 mg/1 in 1973 and 21.5 mg/1 in 1974; thermal stratification was maintained both years. The 21.5‐mg/l oxygen concentration is the highest value yet reported for a hypolimnion and constitutes an upper limit controlled by pressure, temperature, and oxygen demand. Degassing was observed as the high value was reached. Hypolimnion concentrations (of N 2 ) were calculated for different injected mixtures of O 2 and N 2 gases.