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科技导报
| 专题论文 2015, 33(14): 93-96
甘蔗渣和玉米芯对水中亚甲基蓝的吸附去除作用
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朱丽芳1 , 张明2 , 徐立恒2
作者信息
1. 浙江水利水电学院测绘与市政学院, 杭州310018;
2. 中国计量学院环境工程系, 杭州310018
通讯作者:
张明(通信作者),讲师,研究方向为环境化学,电子信箱:zhangming@cjlu.edu.cn
Removal of methylene blue dye from water by bagasse and corn cob
Affiliations
出版时间: 2015-07-28
doi: 10.3981/j.issn.1000-7857.2015.14.017
文章导航
合理处理处置农业生产过程中产生的大量固体废弃物,已成为农业和环境领域共同关注的焦点。选取了两种常见的农业固体废弃物甘蔗渣、玉米芯,用批量平衡吸附实验研究其对水中亚甲基蓝染料的吸附作用。吸附动力学结果表明,甘蔗渣和玉米芯对亚甲基蓝的吸附平衡时间小于4 h,吸附动力学过程可用准二级动力学模型精准拟合(R 2 >0.9),表明化学吸附主导了整个吸附过程;等温吸附曲线为典型的非线性吸附,可用Langmuir 等温吸附模型拟合。结果表明,甘蔗渣和玉米芯对水中亚甲基蓝有较好的吸附去除能力,最大吸附量分别为22.03 和19.72 mg/g。
甘蔗渣
/
玉米芯
/
吸附
/
染料
/
废水处理
The proper disposal of massive agricultural solid waste is one of main agricultural and environmental concerns. The bagasse and the corn cob are selected as two typical agricultural solid wastes in this study to investigate the adsorption kinetics and the equilibrium isotherms of the dye methylene blue (MB). It is shown that the adsorption rate is great and the equilibrium is reached in less than 4 h. The sorption kinetics can be well described by a pseudo-second-order kinetic model and is fitted with the R2 value greater than 0.9, indicating a chemisorption dominated process. The adsorption isotherms are non-linear, and can be well fitted by the Langmuir adsorption model. The bagasse and the corn cob show a good sorption capacity with respect to the MB, and the maximum adsorption amount of the MB by the bagasse and the corn cob are 22.03 and 19.72 mg/g, respectively.
bagasse
/
corn cob
/
adsorption
/
dye
/
waste water treatment
朱丽芳, 张明, 徐立恒.
甘蔗渣和玉米芯对水中亚甲基蓝的吸附去除作用.
科技导报,
2015
, 33
(14)
: 93
-96
.
DOI: 10.3981/j.issn.1000-7857.2015.14.017
ZHU Lifang, ZHANG Ming, XU Liheng.
Removal of methylene blue dye from water by bagasse and corn cob[J].
Science & Technology Review ,
2015
, 33
(14)
: 93
-96
.
DOI: 10.3981/j.issn.1000-7857.2015.14.017
2015年第33卷第14期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.14.017
接收时间:2015-05-13
首发时间:2015-08-14
出版时间:2015-07-28
收稿日期:2015-05-13
修回日期:2015-06-02
通讯作者:
张明(通信作者),讲师,研究方向为环境化学,电子信箱:zhangming@cjlu.edu.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.14.017
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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