一株产絮酵母菌废菌体对Cd2+的吸附特性

张广金; 信欣; 毛言; 刘韵; 陈梅

环境工程学报

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张广金, 信欣, 毛言, 刘韵, 陈梅. 一株产絮酵母菌废菌体对Cd2+的吸附特性[J]. 环境工程学报, 2012, 6(5): 1595-1598.

引用本文:

张广金, 信欣, 毛言, 刘韵, 陈梅. 一株产絮酵母菌废菌体对Cd2+的吸附特性[J]. 环境工程学报, 2012, 6(5): 1595-1598.

Zhang Guangjin, Xin Xin, Mao Yan, Liu Yun, Chen Mei. Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant[J]. Chinese Journal of Environmental Engineering, 2012, 6(5): 1595-1598.

Citation:

Zhang Guangjin, Xin Xin, Mao Yan, Liu Yun, Chen Mei. Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant[J]. Chinese Journal of Environmental Engineering, 2012, 6(5): 1595-1598.

一株产絮酵母菌废菌体对Cd2+的吸附特性

1.
成都信息工程学院资源环境学院，成都 610225
基金项目:
成都信息工程学院校级大学生创新性实验计划项目（200903）

四川省教育厅资助项目（11ZB090）
中图分类号: X703.1

Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant

1.
College of Resources and Environment， Chengdu University of Information Technology， Chengdu 610225，China
Fund Project:

摘要: 将一株产絮酵母菌（编号B-02号）发酵后的废菌体制成生物吸附剂，研究该生物吸附剂对废水中Cd2+的生物吸附特性。结果表明：（1）pH值对Cd2+会产生较大的影响，偏酸性（pH=4～6）条件利于吸附；该吸附剂对Cd2+吸附速率较快，8～10 min就可达到吸附平衡；（2）吸附剂的吸附动力学符合二级动力学模型，吸附Cd2+的实验数据对Langmuir等温式的拟合情况良好，吸附剂吸附Cd2+的最大吸附量为70.752 mg/g。用0.5 mol/ L HNO3 对吸附Cd2+的酵母菌进行解吸，解吸率可达89.7 %。
- 吸附特性 /
- 产絮酵母菌 /
- Cd2+
Abstract: The biosorption characteristis of waste cells of a yeast named B-02 produced flocculant as the biosorbent for the removal of Cd2+ from aqueous solution was investigated. The results showed that (1) the adsorption of Cd2+ by waste cells of a yeast was a quick process which only needed 8～10 min to reach equilibrium，and the optimum pH was about 4～6. (2) The adsorption reaction meets the pseudo-second-order kinetic model. The reaction of biosorbent B-02 adsorption Cd2+ was consistent with the Langmuir adsorption isotherm model，and the maximum adsorption capacity for Cd2+ was 70.752 mg/g . The desorption rate of Cd2+ by 0.5 mol/ L HNO3 was 89.7 %.
- adsorption characteristics /
- yeast produced flocculant /
- Cd2+

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张广金, 信欣, 毛言, 刘韵, 陈梅. 一株产絮酵母菌废菌体对Cd2+的吸附特性[J]. 环境工程学报, 2012, 6(5): 1595-1598.

引用本文:

张广金, 信欣, 毛言, 刘韵, 陈梅. 一株产絮酵母菌废菌体对Cd2+的吸附特性[J]. 环境工程学报, 2012, 6(5): 1595-1598.

Citation:

一株产絮酵母菌废菌体对Cd2+的吸附特性

1. 成都信息工程学院资源环境学院，成都 610225

收稿日期: 2011-03-28

基金项目:

成都信息工程学院校级大学生创新性实验计划项目（200903）

四川省教育厅资助项目（11ZB090）

关键词:

吸附特性 /
产絮酵母菌 /
Cd2+

摘要: 将一株产絮酵母菌（编号B-02号）发酵后的废菌体制成生物吸附剂，研究该生物吸附剂对废水中Cd2+的生物吸附特性。结果表明：（1）pH值对Cd2+会产生较大的影响，偏酸性（pH=4～6）条件利于吸附；该吸附剂对Cd2+吸附速率较快，8～10 min就可达到吸附平衡；（2）吸附剂的吸附动力学符合二级动力学模型，吸附Cd2+的实验数据对Langmuir等温式的拟合情况良好，吸附剂吸附Cd2+的最大吸附量为70.752 mg/g。用0.5 mol/ L HNO3 对吸附Cd2+的酵母菌进行解吸，解吸率可达89.7 %。

English Abstract

Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant

1. College of Resources and Environment， Chengdu University of Information Technology， Chengdu 610225，China

Received Date: 2011-03-28

Fund Project:

Keywords:

Abstract: The biosorption characteristis of waste cells of a yeast named B-02 produced flocculant as the biosorbent for the removal of Cd2+ from aqueous solution was investigated. The results showed that (1) the adsorption of Cd2+ by waste cells of a yeast was a quick process which only needed 8～10 min to reach equilibrium，and the optimum pH was about 4～6. (2) The adsorption reaction meets the pseudo-second-order kinetic model. The reaction of biosorbent B-02 adsorption Cd2+ was consistent with the Langmuir adsorption isotherm model，and the maximum adsorption capacity for Cd2+ was 70.752 mg/g . The desorption rate of Cd2+ by 0.5 mol/ L HNO3 was 89.7 %.

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一株产絮酵母菌废菌体对Cd2+的吸附特性

Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant

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一株产絮酵母菌废菌体对Cd2+的吸附特性

English Abstract

Characteristics of Cd2+ biosorption by waste yeast cells produced flocculant

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