|
|||||
|
|
| 沸石负载氧化铁吸附剂吸附除磷研究 | |
| 引用本文： | 陆燕勤,朱丽,何昭菊,张华,李小霞. 沸石负载氧化铁吸附剂吸附除磷研究[J]. 环境工程, 2015, 33(4): 48-52. DOI: 10.13205/j.hjgc.201504011 |
| 作者姓名： | 陆燕勤 朱丽 何昭菊 张华 李小霞 |
| 作者单位： | 1. 桂林理工大学环境科学与工程学院,广西桂林541004;桂林理工大学广西矿冶与环境科学实验中心,广西桂林541004 2. 桂林理工大学环境科学与工程学院,广西桂林,541004 3. 桂林市城市规划设计研究院,广西桂林,541002 |
| 基金项目： | 广西矿冶与环境科学实验中心资助(KH2012ZD004);广西危险废物处置产业化人才小高地资助 |
| 摘 要： | 采用铁盐溶液蒸发法制备沸石负载氧化铁吸附剂,探讨其对磷的吸附性能。结果表明:随着沸石负载氧化铁吸附剂投加量的增加,单位质量吸附剂对磷的吸附量先升高后降低;磷的去除率随负载铁含量的增加而升高;p H=7时,去除率高达92.6%;吸附剂对磷的去除率受共存离子的影响较小;吸附数值可采用Freundlich等温模型拟合,相关性显著;吸附过程很好地遵循准二级动力学模型;采用Na OH为再生剂效果较好,再生率随着Na OH溶液浓度的提高而提高。 |
| 关 键 词： | 沸石负载氧化铁 除磷 吸附 吸附剂再生 |
PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE |
|
| Lu Yanqin , Zhu Li , He Zhaoju , Zhang Hua , Li Xiaoxia. PHOSPHORUS ADSORPTION FROM WASTEWATER BY IRON-OXIDE-COATED-ZEOLITE[J]. Environmental Engineering, 2015, 33(4): 48-52. DOI: 10.13205/j.hjgc.201504011 | |
| Authors: | Lu Yanqin Zhu Li He Zhaoju Zhang Hua Li Xiaoxia |
| Affiliation: | Lu Yanqin;Zhu Li;He Zhaoju;Zhang Hua;Li Xiaoxia;College of Environmental Science and Engineering,Guilin University of Technology;Guangxi Scientific Experiment Center of Mining,Metallurgy and Environment,Guilin University of Technology;Guilin Urban Planning & Design Institute; |
| Abstract: | In this paper，iron-oxide-coated-zeolite has been prepared by using natural zeolite and ferric nitrate． The absorbing effect of IOCZ on phosphorus was discussed． Ｒesults showed that: With the increase of the dosage of IOCZ，the adsorption amount first increased and then decreased． The removal rate of phosphorus went up with the increase of iron content． When the pH of solution was 7，the removal rate was 92. 6%． The influence of coexisting ions on phosphorus removal of absorbent was small． The adsorbing data fitted the Freundlich isothermal model and the adsorption process of phosphorus satisfactorily followed the pseudo-second order kinetic model． Using NaOH as regenerating agent had a good performance on regenaration， and the regeneration increased with the concentration of NaOH solution． |
| Keywords: | iron-oxide-coated-zeolite phosphorus removal adsorption adsorption reuse |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《环境工程》浏览原始摘要信息 | |
| 点击此处可从《环境工程》下载全文 | |