| Sphaerotilus natans对Zn~(2+)吸附的研究 |
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| 引用本文： | 郭艳,蔡国林,陈小兰,许旭萍.Sphaerotilus natans对Zn~(2+)吸附的研究[J].环境科学与技术,2008,31(5):84-86. |
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| 作者姓名： | 郭艳 蔡国林 陈小兰 许旭萍 |
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| 作者单位： | 福建师范大学生命科学学院,福建,福州350108 |
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| 摘 要： | 以球衣菌作为生物吸附剂,研究了球衣菌对Zn2+吸附过程中的影响因素,包括吸附时间,pH,菌龄等。结果表明:Zn2+浓度为1.0mg/L,菌体浓度为0.5g/L,菌龄32h,pH7.0,吸附时间30min时,吸附的效果最好,吸附率达到77.2%,吸附量为3.86mg/g。吸附作用是一个快速的过程,30min就基本达到平衡。
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| 关 键 词： | 球衣菌 Zn2+ 生物吸附条件 |
| 文章编号： | 1003-6504(2008)05-0084-03 |
| 修稿时间： | 2007年3月12日 |
Study on Zn2+ Removal by Sphaerotilus natans |
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| GUO Yan,CAI Guo-lin,CHEN Xiao-lan,XU Xu-ping.Study on Zn2+ Removal by Sphaerotilus natans[J].Environmental Science and Technology,2008,31(5):84-86. |
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| Authors: | GUO Yan CAI Guo-lin CHEN Xiao-lan XU Xu-ping |
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| Abstract: | Sphaerotilus natans was used as biosorbent for zinc adsorption. The influence factors on removal of Zn2+ were investigated, including time of adsorption, pH and strain age. Results showed that the highest adsorption efficiency of 77.2% and the biosorptive capacity of 3.86mg/g were obtained at pH 7.0, initial zinc ion concentration of 1.0mg/L, biomass concentration of 0.5g/L, strain age of 32h and absorptive time of 30min. The effect of biosorption on Zn2+ was a rapid process, which reached equilibrium in 30min. |
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| Keywords: | Sphaerotilus natans Zn2+ biosorption |
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