Evaluation of Removal Performance of Triamcinolone Acetate by Typical Water Treatment Agents

Abstract

In this paper, the removal performance of Triamcinolone acetonide (TA) by ClO2, NaClO, O3, K2FeO4, and KMnO4 oxidation was assessed. The effects of pH value and humic acid (HA) on TA removal during KMnO4 oxidation process were also investigated. The results showed that ClO2, NaClO, and O3 were not sufficient for TA elinimation. However, K2FeO4 can capable of removing TA effectively, and the removal rate of TA can be achieved 84.6% at 60 min while K2FeO4 dosing at 10 mg/L. However, the removal effect of TA in water was inhibited as the concentration of K2FeO4 overdosed. KMnO4 can degradate TA effectivly. TA can be completely removed after 90 minutes while the initial concentration of TA is 250μg/L and the KMnO4 dosage at 50mg/L.Weakly acidic and neutral conditions can promote TA removal, the effect of Humid acid (HA) on TA removal was based on the HA dosage, an inhibitory effect was obsearved when the dosage of HA from 1mg/L to 5mg/L, however when CHA≥7mg/L, HA can accelerate TA removal.