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| 承德沸石改性处理氨氮废水及其吸附容量的研究 | |
| 引用本文： | 李贵贤,吴奇,赵旭涛,张琼,曹天鹏.承德沸石改性处理氨氮废水及其吸附容量的研究[J].兰州理工大学学报,2006,32(5):75-78. |
| 作者姓名： | 李贵贤 吴奇 赵旭涛 张琼 曹天鹏 |
| 作者单位： | 1. 兰州理工大学,石油化工学院,甘肃,兰州,730050 2. 中国石油兰州石化公司,石油化工研究院,甘肃,兰州,730060 3. 兰州交通大学,环境与市政工程学院,甘肃,兰州,730070 |
| 摘 要： | 通过盐改性、碱热熔-碱水热改性、加热活化等方法对承德沸石进行改性处理,用模拟氨氮废水进行了吸附实验,并采用XRD和SEM对其改性效果及原因进行了分析.通过对比去除效率发现:采用质量分数为7%的NaCl溶液改性的沸石最适合于处理氨氮废水.同时测量了天然沸石吸附氨氮的饱和吸附容量,并比较等温吸附曲线后认为Freundlich曲线有更好的符合性. |
| 关 键 词： | 沸石 改性 吸附 氨氮废水 吸附容量 |
| 文章编号： | 1673-5196(2006)05-0075-04 |
| 收稿时间： | 2005-10-17 |
| 修稿时间： | 2005年10月17 |
Investigation of treatment of ammonia-nitrogen wastewater with modified Chengde zeolite and its adsorption capacity |
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| LI Gui-xian,WU Qi,ZHAO Xu-tao,ZHANG Qiong,CAO Tian-peng.Investigation of treatment of ammonia-nitrogen wastewater with modified Chengde zeolite and its adsorption capacity[J].Journal of Lanzhou University of Technology,2006,32(5):75-78. | |
| Authors: | LI Gui-xian WU Qi ZHAO Xu-tao ZHANG Qiong CAO Tian-peng |
| Institution: | 1. College of Petrochemical Technology, Lanzhou Univ. of Tech. , Lanzhou 730050, China; 2. Petrochemical Research Institute of Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China; 3. School of Environmental and Municipal Engineering, Lanzhou Jiaotong U- niversity,Lanzhou 730070, China |
| Abstract: | Modification treatment of Chengde zeolite was conducted by means of addition of inorganic salt and fused-aqueous alkali or by thermal activation,adsorption test was performed with simulated ammonia-nitrogen wastewater,and the modification result and origin was further analyzed by means of XRD and SEM.It was found by comparing the removal rates that the zeolite modified by using alkali solution with mass percentage of 7% would be the best one to treat ammonia-nitrogen wastewater.Meantime,the saturate adsorption capacity of natural zeolite used for ammonia-nitrogen adsorption was measured and the isothermal adsorption curves were compared,so that the Freundlich curve was considered to have better conformity to the actuality. |
| Keywords: | zealite modification adsorption ammonia-nitrogen wastewater adsorption capacity |
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