污水中共存离子对酿酒废酵母吸附Pb<sup>2+</sup>动力学及等温吸附影响研究

陈卫林; 高蕾; 阎晓菲; 吴小强; 王雪梅; 赵丹丹; 董新平; 武运

doi:10.13386/j.issn1002-0306.2014.15.008

污水中共存离子对酿酒废酵母吸附Pb²⁺动力学及等温吸附影响研究

1. 新疆农业大学食品科学与药学学院
2. 新疆农业大学科学技术学院
3. 新疆中信国安葡萄酒业有限公司

基金项目:

新疆维吾尔自治区自然科学基金“酿酒废酵母吸附污水中低浓度Pb2+机理研究”(2012211A061)；

详细信息

作者简介:
陈卫林 (1987-) , 男, 硕士研究生, 研究方向:食品生物技术。;

中图分类号: O647.3;X703
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- 文章访问数: 156
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出版历程
- 收稿日期: 2013-10-07

Effects of coexisting ions on biosorption kinetics and equilibrium of Pb2+ by discarded brewers yeast in waste water

College of Food Science and Pharmaceutical Science, Xinjiang Agricultural University
College of Science and Technology, Xinjiang Agricultural University
Citic Guoan Wine CO., LTD

摘要

摘要: 通过静态吸附实验,以酿酒废酵母作为吸附剂,研究了Cu2+、Ni2+及Cu2+和Ni2+共存对酿酒废酵母吸附Pb2+动力学以及等温吸附的影响。结果表明:Ni2+的存在使Pb2+的吸附平衡时间从5min延长到了10min,减缓了Pb2+吸附速率,但对Pb2+的吸附量无影响,Cu2+以及Cu2+和Ni2+共存都使Pb2+的吸附量明显下降,分别下降了35.45%和32.51%。用准二级动力学方程和Langmuir方程对Pb2+吸附过程进行了拟合,发现在本实验条件下可以用准二级动力学方程（R2为0.9953⁰.9999）和Langmuir方程（R2为0.9687⁰.9824）对酿酒废酵母竞争吸附Pb2+的动力学及吸附平衡进行描述。
- 酿酒废酵母 /
- 竞争吸附 /
- 动力学 /
- 吸附平衡
Abstract: Effects of Cu2 +and Ni2 +on biosorption kinetics and equilibrium of Pb2 +by discarded brewers yeast were studied using static adsorption experiment.The experimental results indicated that the existence of Ni2 +extended the Pb2 +adsorption equilibrium time from 5min to 10 min, slowed the rate of Pb2 +adsorption, but it had almost no effect on Pb2 +adsorption capacity.The existence of Cu2 +reduced Pb2 +adsorption capacity markedly by 35.45%as the existence of Cu2 +and Ni2 +did ( 32.51%) .Competitive adsorption processes were fitted with pseudo-second order kinetics and Langmuir adsorption equation. Pseudo- second order kinetics ( R2 was 0.9953 ~ 0.9999) and Langmuir adsorption equation ( R2 was 0.9687~0.9824) can be used to describe competitive adsorption processes of Pb2 +by discarded brewers yeast under the experimental conditions.
- discarded brewers yeast /
- competitive adsorption /
- kinetic /
- adsorption equilibrium

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参考文献(19)

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