Unless otherwise specified, the concentrations indicated are mass concentrations. Units of concentration commonly used in the profession are ppm and ppb. Remember that:1 ppm = 10,-6kg/kg1 ppb = 10−9 kg/kg
The brine used in closed-loop mercury and membrane processes is normally saturated with solid salt, although some facilities use salt in solution extracted from underground without brine recycling or in combination with a diaphragm process that produces solid salt.
Brine is usually obtained by dissolving salt in...
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