Removal of mercury from waste streams

Details Removal of mercury from waste streams Removal of mercury from waste streams

1992-01-08

1992-10-13

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210668, 210669, 210688, 210914, C02F 128, C02F 900

Patent

active

051548330

ABSTRACT:
Thimerosal is removed from aqueous effluent streams from vaccine production to provide an invironmentally-acceptable effluent stream. The thimerosal first is converted to ionic form by chlorination, the resulting solution is dechlorinated to remove dissolved unreacted chlorine, and then the ionic mercury is removed by ion-exchange employing thiol groups.

REFERENCES:
patent: 3617563 (1971-11-01), Fuxelius
patent: 3755161 (1973-08-01), Yokota et al.
patent: 3873581 (1975-03-01), Fitzpatrick et al.
patent: 3935098 (1976-01-01), Oda et al.

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