| 于忠臣,王 松,李 转,牛源麟,乔明.化学通报,2015,78(2):177-181. |
| 铜和铝离子/UV催化臭氧降解偶氮二异丁腈废水研究 |
| 2, 2′–Azobisisobutyronitrile Wastewater Degradation By Cu2 and Al3 /UV Catalysis Ozonation Process |
| 投稿时间：2014-06-17 修订日期：2014-07-28 |
| DOI： |
| 中文关键词: UV催化臭氧 金属离子 偶氮二异丁腈废水 降解效率 |
| 英文关键词:UV ozone catalytic metal ion Azobisisobutyronitrile wastewater degradation efficiency |
| 基金项目: |
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| 摘要点击次数: 2668 |
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| 中文摘要: |
| 研究利用多相催化臭氧工艺处理偶氮二异丁腈废水,探讨不同催化臭氧体系(Cu2 、Al3 、Cu2 Al3 /UV复合催化臭氧)对偶氮二异丁腈废水中氰类污染物的降解特性,并对不同催化臭氧体系的动力学特性进行研究。金属离子对催化臭氧工艺的处理效率具有明显影响,采用不同催化臭氧工艺CN-去除作用都呈现起始去除速率较高而后减弱的特点。其中在紫外辐照下,Cu2 Al3 共同催化O3工艺的整体去除率较高,优于单独Cu2 和Al3 催化性能。这可能是由于pH变化、金属离子与CN-配合作用、金属离子和O3作用的综合影响的结果。不同催化臭氧体系(Cu2 、Al3 、Cu2 Al3 /UV复合催化臭氧)降解偶氮二异丁腈废水的氧化反应符合类一级动力学反应,反应速率常数k在0.0245~0.00301min-1之间。 |
| 英文摘要: |
| The azobisisobutyronitrile wastewater treatment was treatment using heterogeneous catalytic ozonation process. The degradation characteristics of different catalytic ozonation system (Cu2 , Al3 , Cu2 Al3 composite catalytic ozone and UV) degradation of azobisisobutyronitrile nitrile cyanide wastewater pollutants and the dynamics of the different catalytic ozone systems were discussed. Metal ions have a significant effect on the efficiency of UV catalytic ozone treatment process, the removing of CN- have shown a high initial rate and then decline characteristics by using different catalytic processes.The removal efficiency of UV catalytic ozone combinating with Cu2 and Al3 was higher than individual Cu2 or Al3 catalytic performance. This might be the result of the combined effect of pH change, CN- metal ion complexation, metal ions and O3.The oxidation reaction of different catalytic ozone systems (Cu2 , Al3 , Cu2 Al3 and UV composite catalytic ozone) to azobisisobutyronitrile wastewater in accordance w ith a pseudo first-order kinetics, the reaction rate constant k is between 0.0245~0.00301min-1. |
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