[1]杨小丽,黄克虎.不同生物载体对雌酮的吸附性能[J].东南大学学报(自然科学版),2013,43(6):1269-1273.[doi:10.3969/j.issn.1001-0505.2013.06.026]
　Yang Xiaoli,Huang Kehu.Adsorption behaviors of estrone onto different biological carriers[J].Journal of Southeast University (Natural Science Edition),2013,43(6):1269-1273.[doi:10.3969/j.issn.1001-0505.2013.06.026]
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不同生物载体对雌酮的吸附性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第6期
页码:
1269-1273
栏目:
环境科学与工程
出版日期:
2013-11-20

文章信息/Info

Title:
Adsorption behaviors of estrone onto different biological carriers
作者:
杨小丽; 黄克虎
东南大学土木工程学院, 南京 210096
Author(s):
Yang Xiaoli;  Huang Kehu
School of Civil Engineering, Southeast University, Nanjing 210096, China
关键词:
雌酮;  生物载体;  吸附;  吸附模型;  初始浓度
Keywords:
estrone;  biological carrier;  adsorption;  adsorption model;  initial concentration.
分类号:
X703.1
DOI:
10.3969/j.issn.1001-0505.2013.06.026
摘要:
为了提高污水处理工艺对污水中雌酮(E1)的去除性能,通过静态吸附实验研究了不同E1初始浓度下,活性炭、沸石、竹炭和玉米芯4种生物载体对E1的吸附行为,并采用吸附模型和吸附动力学来解析不同生物载体对E1的吸附去除机制.E1浓度分析采用固相萃取-高效液相色谱(SPE-HPLC)联用技术.实验结果表明:E1初始浓度为1~500 μg/L时,4种生物载体对E1的吸附均在1 h左右达到吸附平衡;E1初始浓度对吸附平衡时间的影响较小;E1的吸附符合Freundlich吸附模型,其中活性炭、沸石和玉米芯对E1的吸附为线性吸附,竹炭对E1的吸附是非线性吸附;伪二级动力学模型能够较好地描述这4种载体对E1的吸附规律,并且吸附速率常数随着E1初始浓度的增加而减小.
Abstract:
In order to improve the removal of estrone(E1)by wastewater treatment processes, the adsorption behaviors of E1 onto activated carbon, zeolite, bamboo charcoal and corncob were investigated with the different E1 initial concentrations by static adsorption experiments. The adsorption model and kinetic models were used to explore the adsorption mechanism of E1 onto different biological carriers. Solid phase extraction combined with high performance liquid chromatography(SPE-HPLC)was used to determine the E1 concentrations. The experimental results show that when the E1 initial concentrations were 1 to 500 μg/L, activated carbon, zeolite, bamboo charcoal and corncob all reach the equilibrium within 1 h. The adsorption equilibrium time is little affected by the E1 initial concentrations. All of the adsorption profiles of four kinds of carriers match the Freundlich model. And the adsorption of E1 onto activated carbon, zeolite and corncob presents linear adsorption while that onto bamboo charcoal shows nonlinear adsorption. The pseudo-second-order kinetic model can describe the adsorption laws of E1 onto four types of carriers well. The adsorption rate decreases with the increase of the E1 initial concentration.

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备注/Memo

备注/Memo:
作者简介: 杨小丽(1977—),女,博士,副教授, yangxiaoli@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51008064,51109038)、东南大学重大科学研究引导基金资助项目(3205003103)、 教育部留学回国人员科研启动基金资助项目.
引文格式: 杨小丽,黄克虎.不同生物载体对雌酮的吸附性能[J].东南大学学报:自然科学版,2013,43(6):1269-1273. [doi:10.3969/j.issn.1001-0505.2013.06.026]
更新日期/Last Update: 2013-11-20