| 啤酒酵母对Zn~(2+)、Mn~(2+)和Cu~(2+)的吸附探究 |
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| 引用本文： | 张建梅,黄燕.啤酒酵母对Zn~(2+)、Mn~(2+)和Cu~(2+)的吸附探究[J].通化师范学院学报,2009,30(4). |
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| 作者姓名： | 张建梅 黄燕 |
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| 作者单位： | 1. 浙江工业大学,生物与环境工程学院,浙江杭州310014;湖州师范学院生命科学学院,浙江湖州313000
2. 浙江工业大学,生物与环境工程学院,浙江杭州310014 |
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| 摘 要： | 文中利用啤酒酵母去除模拟废水中Zn2+、Mn2、Cu2+,通过对预处理试剂、吸附温度、吸附液pH值与浸泡时间等因素进行正交分析,确定了影响吸附的主要因素是酸度和预处理试剂.研究pH值、离子初始浓度、吸附时间、离子强度等条件对吸附率的影响,结果表明,用NaOH浸泡后2h,在pH=5~6时吸附效果最好.用吸附等温线Langmuir(exe)、Freundlich和Temkin方程拟合,相关性都比较好.用不同的吸附动力学方程描述啤酒酵母吸附金属离子的最优模型为Elovich方程.
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| 关 键 词： | 啤酒酵母 吸附 吸附等温线 动力学 |
Absorption of Heavy Metals Ions Zn2+,Mn2+ and Cu2+ by Saccharomyces cerevisiae |
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| ZHANG Jian-mei,HUANG Yan.Absorption of Heavy Metals Ions Zn2+,Mn2+ and Cu2+ by Saccharomyces cerevisiae[J].Journal of Tonghua Teachers College,2009,30(4). |
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| Authors: | ZHANG Jian-mei HUANG Yan |
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| Institution: | 1(1.College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou; Zhejiang 310014; China; 2.School of Life Sciences; Huzhou Normal University; Huzhou; Zhejiang 313000; China); |
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| Abstract: | The Zn2+,Mn2+,Cu2+ in the waste water were removed by Saccharomyces cerevisiae.The preparation reagent,adsorption temperature,adsorption solution pH and soaking time to the heavy metal ions were studied in this paper.The orthogonal experiment showed that the major factors to affect the adsorption capacity were acidity and pretreatment reagent,the farther investigation was to examine the factors affected adsorption of Saccharomyces cerevisiae to heavy metals ions Zn2+,Mn2+,Cu2+.These factors included pH valu... |
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| Keywords: | Saccharomyces cerevisiae adsorption adsorption isotherm kinetics |
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