Abstract
Conversions of the distiller wastes in the ammonia soda process with sea water treated cation exchange resin were examined with a view to increasing Na+ concentration of the distiller wastes for the benefit of NaCI recoveries.
When the cation exchange res in (Permutit Q) was taken 100g (air-dried weight?water weight), was treated with the 41 of the artificial sea water, and was then treated with the 400cc of the artificial distiller waste (the composition: NaCl 45g/l, CaCl2120g/l), the effluent of high NaCI cancentration (the volume: 160cc, the composition: NaCl 80g/l, CaCl2 40g/l, MgCl2 20g/l) was obtained. the flow velocity was taken 10cc/min in the treatment with the distiller waste.
According to the experinental result, NaCl concentration was in creased by 35g/l, MgCl2 was appeared in the concentration of 20g/l, and CaCl2 concentration was decreased by 80g/l. As the maximum concentration of NaCl was appeared in 100cc, and the maximum concentration of MgCl2 was appeared in 60cc, the separation of NaCl and MgCl2 was impossible.
For after-treatment, it was suggested that the effluent was tr eated by Mg(OH)2 and CO2, and was onverted to NaCl-MgCl2 solution.
