固载型AC/TiO_2催化剂光催化降解氨氮实验研究

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英文篇名：Study on heterogeneous photocatalytic degradation of NH_4~+-N with immobilized AC/TiO_2 photocatalyst 作者：尚会建 ; 周艳丽 ; 赵彦 ; 张高 ; 赵丹 ; 张少红 ; 郑学明 英文作者：SHANG Hui-jian1,2,ZHOU Yan-li2,ZHAO Yan2,ZHANG Gao2,ZHAO Dan2, ZHANG Shao-hong2,ZHENG Xue-ming2(1.College of Chemical Engineering and Technology,Tianjin University,Tianjin 300192,China;2.College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China) 关键词：TiO2 ; 活性炭 ; 催化剂负载 ; 光催化降解 ; 氨氮 英文关键词：TiO2;activated carbon;supporting catalysts;photocatalytic degradation;ammonia nitrogen 中文刊名：XDHG 英文刊名：Modern Chemical Industry 机构：天津大学化工学院;河北科技大学化学与制药工程学院; 出版日期：2012-11-20 出版单位：现代化工 年：2012 期：v.32;No.313 语种：中文; 页：XDHG201211016 页数：4 CN：11 ISSN：11-2172/TQ 分类号：65-68

摘要

利用溶胶-凝胶法制备固载型AC/TiO2光催化剂来降解废水中氨氮,反应在流化床反应器中进行。研究了活性炭负载量、pH、曝气量、温度等因素对氨氮降解的影响。结果表明:固载型AC/TiO2催化剂对模拟氨氮废水的处理效果好。处理35mg/L的氨氮废水,当活性炭负载量为1.92%,pH=11,曝气量为69 mL/s,反应温度为60℃,反应2 h后总氮的去除率可达98.02%。以活性炭颗粒为载体制备的AC/TiO2催化剂的光催化活性高,不流失,制作简单,可重复使用。
        The immobilized type AC/TiO2 photocatalyst is prepared by sol-gel method to photocatalytically degrade the ammonia in the wastewater.The influences of activated carbon loading,pH,aeration rate,temperature and other factors on the ammonia degradation in the fluidized bed reactor are carried out.The results indicate that the AC/TiO2 2Tcatalyst shows high efficiency in photocatalytic oxidizing of simulation ammonia nitrogen wastewater.When 35 mg/L of ammonia wastewater is treated,removal rate of the total nitrogen can reach up to 98.02% under the following conditions:1.92% of activated carbon loading,11 of pH value,69 mL/s of aeration rate,60℃ of reaction temperature and 2 hours of reaction time.The obtained AC/TiO2 catalyst has high photocatalytic activity without running off the active materials,ease of preparation and can be reused.

引文

[1]王莉萍,曹国平,周小虹.氨氮废水处理技术研究进展[J].化学推进剂与高分子材料,2009,7(3):26-31.
    [2]王会芳.工业废水中氨氮处理的研究进展[J].广州化工,2009,37(6):42-46.
    [3]Raheleh Malekian,Jahangir Abedi-Koupai,Sayed Saeid Eslamian,et al.Ion-exchange process for ammonium removal and release u-sing natural Iranian zeolite[J].Applied Clay Science,2011,51(3):323-329.
    [4]贾陈忠,刘松.TiO2光催化氧化技术在水处理中的研究进展[J].广州化工,2012,40(4):5-7.
    [5]徐锐,尹卫平.光催化氧化法处理氨氮废水的研究[J].郑州工程学院学报,2003,24(3):84-87.
    [6]杨海明,柳丽芬,张兴文,等.光催化法脱出水中无机氮的研究进展[J].武汉大学学报,2005,51(S2):283-285.
    [7]Akira Fujishima,Zhang Xintong.Titanium dioxide photocatalysis:present situation and future approaches[J].Comptes Rendus Chim-ie,2006,9(5/6):750-760.
    [8]Reyes C,Fernández J,Freer J,et al.Degradation and inactivation oftetracycline by TiO2 photocatalysis[J].Journal of Photochemistryand Photobiology A:Chemistry,2006,184(1/2):141-146.
    [9]Alinsafi A,Evenou F,Abdulkarim E M,et al.Treatment of textileindustry wastewater by supported photocatalysis[J].Dyes and Pig-ments,2007,74,(2):439-445.
    [10]范继业,张静,高冬婷,等.TiO2光催化剂负载及微波协同催化降解制药废水的研究[J].工业水处理,2012,32(3):39-41.
    [11]高晓,付峰,吕磊,等.光催化剂Cu-BiVO4的制备及其光催化降解含酚废水[J].化工进展,2012,5(31):1039-1041.
    [12]沈伟韧,赵文宽,贺飞.TiO2光催化反应及其在废水处理中的应用[J].化学进展,1998,10(4):349-361.
    [13]杨海明.沸石负载二氧化钛光催化脱氮研究[D].大连:大连理工大学,2006:6.
    [14]田宝勇,杨晓华.双氧水分光光度法测定天竹纤维中TiO2含量[J].河北科技大学学报,2008,29(3):200-203.