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Updated: May 9, 2026

A Dual-Functional Electroactive Filter Towards Simultaneously Sb(III) Oxidation and Sequestration
Published on: December 5, 2019
[Simultaneous removal of algae and its odorous metabolite dimethyl trisulfide in water by potassium ferrate]
Xiao-yan Ma1, Ze-hua Zhang, Hong-yu Wang
1Architecture Engineering College, Zhejiang University of Technology, Hangzhou 310014, China. mayaner620@163.com
Abstract:
Co-removal of oscillatoria algae and its potential odorous metabolite dimethyl trisulfide (DMTS) in simulated algae-laden alkaline source water by potassium ferrate (K2FeO4) was investigated in contrast to potassium permanganate (KMnO4) pre-oxidation followed by polyferric chloride (PFC) under varying conditions, including pH, initial oxidant dosage and turbidity. Based on the pre-comparison with PFC, the optimal dosage of PFC in the combined KMnO4 pre-oxidation-PFC treatment was determined. Potassium ferrate resulted in 92.4% removal of algae, higher than PFC when the dosage was equivalent as measured by Fe and KMnO4 showed obviously positive effect as a coagulation aid. Degradation of dimethyl trisufide (92.5%) by potassium ferrate was better than the pre-oxidation of potassium permanganate (74.6%), and the treatment time was decreased from 10 min to 1 min.
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