Uptake and extraction chromatographic separation of mercury(II) by triisobutylphosphine sulfide (TIBPS) sorbed on silica gel and decontamination of mercury containing effluent

Batch experiments on the uptake of (Hg(II)) from nitric acid medium by coated inert support have been conducted. The effect of different variables like equilibration time, concentration of acid, metal ion and extractant has been studied. Binary separations of Hg(II) from other metal ions have been carried out. Experiments to evaluate the recycling capacity of the columns reveal a practically insignificant change in the extraction efficiency of the extractant. The practical utility of the columns has been demonstrated by decontaminating mercury containing waste effluent.