Abstract:

In this paper, the recovery of iodine effluent in chemical reaction rate and equilibrium experiment was studied. From the analysis, it could be found that the presence of iodine in the wastewater was relatively simple after three months and there was no I^-. A sublimation method could be chosen directly to recycle the iodine after the pretreatment of the wastewater. The recycling method had simple steps and was easy to operate. It involved less equipment, is low cost, and more environmental friendly. The recovery rate of the obtained iodine element was 96.1% and the purity reached 98.9%. It can be used as a teaching experiment or interest experiment to promote applications.

Key words: Green chemistry, Chemical reaction rate, Wastewater containing iodine, Recovery of iodine