Sodium sulfate recovery can reduce the total quantity of residual salt needing final storage.
Concentrations and masses were predicted for concentrate following solar evaporation, residual
solution following precipitation of sodium sulfate, and residual...
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Sodium sulfate recovery can reduce the total quantity of residual salt needing final storage.
Concentrations and masses were predicted for concentrate following solar evaporation, residual
solution following precipitation of sodium sulfate, and residual salt evaporite following final evaporation
of water for given influent concentrations.
Sulfate is assumed to crystallize as pure mirabilite
(composition given for thenardite form).
In practice Mg, Cl, and other elements including Se are also
present in varying amounts.
Mass quantities for the RR site data are computed on the basis of
actual salt concentrations and water flows
(annual applied fresh irrigation water = 1600 ML,
TDS = 400 mg kg-1 yielding 640 Mg of applied
salt).
Total drainage water from the halophytes
feeding the salt concentration and separation
system was 44 ML with a salt concentration of
10,620 mg kg-1 and containing 468 Mg of salt.
Some of the applied salt is transported into
ground water or is accumulated in b
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