摘要
采用锌改性浮石为催化剂,催化臭氧氧化难降解的硝基类卤代芳香族有机化合物-对氯硝基苯,对水中常见无机离子对催化臭氧氧化去除水中微量对氯硝基苯的效能进行了比较。实验结果表明,水中阳离子Na+和K+对去除效能影响较小,Ca2+和Mg2+对去除效能略有促进作用。阴离子对去除效能影响较为明显,均有一定抑制作用,NO3-和Cl-影响不明显,其中以SO42-和PO43-的抑制影响最大。
The catalytic ozonation of p-chloronitrobenzene(p-CNB) in an aqueous solution using modification pumice as the catalysts was investigated. The effects of NO3^-, Na^+, and K+on the catalytic ozonation of p-CNB can be ignored. Degradation efficiency was slightly promoted in the presence of Ca^2+ and Mg^2+.The ozonation of p-CNB was slightly inhibited by the high concentration of Cl^-. The removal efficiency of p-CNB decreased in the presence of SO4^2-, given that the hydroxyl inhibitors PO4^3- can significantly inhibit the catalytic degradation of p-CNB.
出处
《国土与自然资源研究》
2015年第1期50-51,共2页
Territory & Natural Resources Study
基金
国家自然科学基金项目(51208186)
黑龙江省青年科学基金项目(QC2011C120)
哈尔滨市青年后备人才项目(2014RFQYJ182)
黑龙江省科学院青年创新基金项目
关键词
改性浮石
无机离子
对氯硝基苯
催化臭氧化
去除效能
modification pumice
inorganic ions
rate p-chloronitrobenzene
catalytic ozonation
removal