Brine evaporation ponds
Enviado por oscar garcia • 21 de Agosto de 2018 • Documentos de Investigación • 255 Palabras (2 Páginas) • 117 Visitas
The successful operation of an evaporation pond depends on the annual net evaporation rate of the brine in question for the locality of origin. Values of annual net evaporation rate of fresh water for the United States are useful only in making relative comparisons of the major geographic areas. Evaporation rate for brine will be significantly lower because of the presence of dissolved solids and oil film. Other variables affect the rate: air and brine temperature, relative humidity, and wind speed.
[pic 4]
Where:
[pic 5]
[pic 6]
[pic 7]
[pic 8]
[pic 9]
The salt correction is as follow:
Concentration | Replace by [pic 10][pic 11] | |
At Saturation | 50,000 mg/lt NaCl | [pic 12] |
150,000 mg/lt NaCl | [pic 13] | |
300,000 mg/lt NaCl | [pic 14] | |
[pic 15]
Evaporation of brine within the temperature range 76°-90° F is described 23 by the following multiple regression analysis:
[pic 16]
[pic 17]
[pic 18]
Where:
[pic 19]
[pic 20]
[pic 21]
[pic 22]
[pic 23]
[pic 24]
[pic 25]
[pic 26]
The B values refer to the following coefficients (rounded to the nearest 0001):
[pic 27] | -0.2276 | [pic 28] | -0.3424 | [pic 29] | -0.0781 | [pic 30] | -0.0002 | [pic 31] | 0.0017 |
[pic 32] | 0.2426 | [pic 33] | 1.8153 | [pic 34] | 0.9523 | [pic 35] | 0.0046 | [pic 36] | 0.0001 |
[pic 37] | 0.0874 | [pic 38] | 0.2063 | [pic 39] | 0.0015 | [pic 40] | -0.0019 | [pic 41] | -0.0011 |
[pic 42] | 0.2129 | [pic 43] | -0.6812 | [pic 44] | -0.0003 | [pic 45] | -0.0068 | [pic 46] | -0.0076 |
For example, if we have a brine disposal site in Copperas Cove with the following conditions:
RH = 80 %
W = 20 mph
AT = 63 °F
WT = 15 °C
C = 1 (brine between 8.5 – 8.8 ppg)
Pond of 100 m (328 ft) long 100 m (328 ft) width
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