Abstract
Bisphenol A is used in various industrial productions and large amounts of industrial wastewater containing bisphenol A is produced. Heterogeneous Fenton-like process in advanced oxidation technology can oxidize and degrade most organic compounds non-selectively, and it has become an effective method to treat bisphenol A. The aim is to overcome the shortcomings of the traditional Fenton method and synthesize catalysts by a simple method, which can help to degrade bisphenol A effectively under neutral conditions, with less catalyst and less H2O2 consumption. In this experiment, α-MnO2 and α-MnO2/AC (1:1, w/w) were synthesized by a simple method, and the degradation rate of bisphenol A by α-MnO2 and α-MnO2/AC (1:1, w/w) under different conditions were studied. The optimal conditions for the degradation of bisphenol A by the two materials were determined by single factor and orthogonal experiments. When the dosage of α-MnO2 catalyst is 6.5g/L and the concentration of H2O2 is 200 mg/L with pH = 4.5 at 328K, the degradation rate of 50mg/L bisphenol A can reach 91.02% within 70 minutes. When α-MnO2/AC (1:1, w/w) has a catalyst dosage of 1.5g/L, at 298K with no pH adjustment, the degradation rate of 50 mg/L of bisphenol A within 70 minutes can be reached 94.17%.
Study on Fenton-like degradation of bisphenol A by α-MnO2 and α-MnO2/AC (1:1, w/w)
