Abstract
This paper reports the development of zero-waste technology for treatment of chloride waste formed in the manufacture of MgA microbead zeolite, based on the method and flow plan used in treating similar wastes formed in the manufacture of bead zeolite. The first crystals of sodium chloride appeared at a magnesium chloride concentration of 8-9% by weight. With a magnesium chloride concentration of 35% by weight, at 50 C, the sodium chloride was almost completely precipitated. Under these conditions, the magnesium chloride did not precipitate. Sodium chloride crystals were washed with water in order to obtain a commercial product meeting the requirements of the specification Tu 6-12-33-78. This product is recommended for use in regenerating cation exchange filters in thermal power plants.
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