非均相催化湿式氧化亚甲蓝水溶液的研究  

Study on methylthionine chloride disposed by non-homogeneous phase CWAO technology

作　　者：胡筱敏[1] 张永利[1] 王庆雨 

机构地区：[1]东北大学环境工程系,沈阳110004 [2]辽宁抚顺石化二厂,抚顺113004

出　　处：《环境工程学报》2007年第2期16-19,共4页Chinese Journal of Environmental Engineering

基　　金：教育部科学技术研究重点项目(03055)

摘　　要：COD为2000 mg/L的亚甲蓝水溶液作为研究对象,用非均相催化湿式氧化技术进行处理,催化剂性能以COD去除率、脱色率以及稳定性来评价。对4种催化剂担体、15种可溶盐活性组分、4种优选铜催化剂的浸渍液浓度进行筛选,并对铜催化剂进行了改性。实验表明,最佳催化剂担体是FSC,活性组分是Cu(NO3)2,并按催化性能对活性组分进行了排序;浸渍液浓度6wt%Cu2+是最佳选择;改性的Cu-Ce/FSC催化剂与Cu/FSC催化剂相比,COD去除率分别为83.9%和84.5%,出水Cu溶出浓度分别为24.1 mg/L和36.1 mg/L,可见改性催化剂与原催化剂的活性相当,但是稳定性却有了大幅度的提高。The research object was methyhhionine chloride watery solution with the COD value of 2000 mg/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% Cu^2＋ 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. 1 mg/L and 24. 1 mg/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.

关 键 词：湿式氧化 亚甲蓝 催化剂 

分 类 号：X703.1[环境科学与工程—环境工程]