Study on methylthionine chloride disposed by non-homogeneous phase CWAO technology
非均相催化湿式氧化亚甲蓝水溶液的研究

The research object was methylthionine chloride watery solution with the COD value of 2000mg/L,and it was disposed by non-homogeneous phase CWAO technology. Catalyst capability was evaluated with COD removal rates,color removal rates and stability. In these experiments, 4 kinds of catalyst supporters, 15 kinds of dissoluble salts and 4 kinds of soaking solution concentration of copper catalyst were screened, and Cu/FSC catalyst was modified. The experiments indicated that the best supporter was FSC, and catalytic active constituent was Cu(NO3)2, furthermore, active constituent was ranked according to catalytic capability. 4 kinds of soaking solution concentration of the excellent Cu catalyst was designed , and the experiments indicated 6wt% Cu2+ was the best choice.At last, Cu/FSC catalyst was modified. COD removal rates were 84.5% and 83.9%, for Cu/FSC and Cu-Ce/FSC catalysts, respectively. 36.1mg/L and 24.1mg/L of Cu were found in the treated solution after the decomposition of MB solution by Cu/FSC and Cu-Ce/FSC catalysts, respectively. Cu-Ce/FSC catalyst was thought to have a stabler structure than that of Cu/FSC catalyst.