二氧化钛光催化降解处理氨氮废水.pdf

DOI ：10.13198/j.res.2005.03.45.qiaoshj.010 18 3 Research of Environmental Sciences Vol . 18, No. 3, 2005 乔世俊, 赵爱平, 徐小莲, 赵慧宏, 吴仁铭 ( , 730030) : TiO A (T iO + A ) , (TiO + A ) , 2 2 2 : (TiO + A ) , 24 h , 95% ; 2 ; (TiO + A ) , , , 8 h 2 Q( ) 238 mgPL 8 mgPL, 97% : TiO ; ; ; 2 : X70315 : A : 1001 - 6929( 2005) 03 - 0043 - 03 Study on Ammonia Nitrogen in Wastewater Degradation by TiO Photocatalysis 2 QIAO Shi- un , ZHAO Ai-ping, XU Xiao-lian, ZHAO Hui-hong, WU Ren-ming ( Environmental Protection Institute of Gansu Province, Lanzhou 730030 , China) Abstract: The ( TiO + A) catalyst w as developed by immobilizing TiO and active material A on brick pieces. The degradation of ammonia nitrogen 2 2 w astewater was investigated by ( TiO + A) catalyst , and the photocatalytic reaction kinetic discussed. The results indicated that the ( TiO + A) 2 2 catalyst shows high eff iciency in photocatalytic oxidizing of simulation ammonia nitrogen wastew ater, w hose removal rate reached 95% when the reaction time is 24 h. The degradation reaction is f irst order. The photocatalytic activity of ( TiO + A) catalyst is high , the acti