Circular convection during subsurface injection of liquid waste, St. Petersburg, Florida

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doi: 10.1029/WR025i007p01481
Authors:Hickey, John J.
Author Affiliations:Primary:
U. S. Geol. Surv., Tampa, FL, United States
Volume Title:Water Resources Research
Source:Water Resources Research, 25(7), p.1481-1494. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0043-1397
Publication Date:1989
Note:In English. 24 refs.; illus. incl. 1 table, sketch map
Summary:Study of density-dependent flow associated with two miscible and density-different liquids. The injection zone was 98 m thick with a radial hydraulic conductivity of 762 m/d and a vertical hydraulic conductivity of 152 m/d. Mean chloride concentrations of the injectant during two tests of 91 and 366 days duration were 180 and 170 mg/L, respectively, whereas chloride concentration of native salt water ranged from 19,000 to 20,000 mg/L. During the 366-day test, chloride concentration in water from a well open to the upper part of the injection zone 223 m from the injection well approximately stabilized at about 4000 mg/L. Relatively constant chloride concentrations in water from this observation well at a level significantly greater than the injectant concentration suggested the hypothesis that circular convection with salt-water flow added chloride ions to the injection zone flow sampled at the observation well.—Modified journal abstract.
Subjects:Carbonate rocks; Chloride ion; Chlorine; Density; Dolostone; Engineering geology; Fluid injection; Fractures; Fresh water; Ground water; Halogens; Hydraulic conductivity; Immiscibility; Liquid waste; Pollution; Salt water; Sedimentary rocks; Surveys; Transport; Waste disposal; Florida; Pinellas County Florida; United States; Saint Petersburg Florida; West-central Florida
Record ID:1989063606
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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