摘要
通过混合浸渍焙烧法制备一类载Cu-La-Mo沸石催化材料(Z/CLM),并通过静态和动态试验研究Z/CLM材料在CWPO法中对直接紫D-BL模拟染料废水的脱色效果.结果表明,制备Z/CLM材料的最佳条件为采用60～80目的天然沸石作为载体浸渍铜、镧和钼的混合盐溶液,在600℃焙烧0.5h;在静态试验中,当pH在7.10,H2O2为8.33mL/L时,直接紫D-BL的去除率达95.15%,染料废水的温度和NaCl浓度对去除效果有促进作用;且通过动态流化床实验可得Z/CLM材料对直接紫D-BL的去除能力为37.82mg/g.
A novel kind of Cu-La-Mo zeolite catalyst （Z/CLM） was prepared with impregnation and calcination hybrid method. A series of static and dynamic experiments was carried out to investigate the catalytic capability of prepared Z/CLM catalyst in the decolorization reaction, and direct blending purple D-BL was selected as target reactant. The experimental results gave out the optimum catalyst preparation conditions as, zeolite particle size of 60～80 mesh, calcination of 600℃ and 0.5h. In the static tests, the highest direct blending purple D-BL decolorization percentage was about 95.15% under the optimum condition, H2O2 8.33mL/L, pH 7.10. Further experiments revealed that the increase of the temperature and the NaCl concentration of wastewater will accelerate the decolorization reaction, and improve the removal efficiency. Besides, the dynamic fluidized bed experiment was implemented in a lab-scale reactor, and the experimental results confirm the removal capability of Z/CLM being 37.82mg/g to direct blending purple D-BL.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2010年第9期1213-1218,共6页
China Environmental Science
基金
教育部留学回国人员科研启动基金(08501041585)
农业部现代农业产业技术体系建设专项资金(nycytx-08)
中央高校基本科研业务费专项资金(GK200902019)
