| 1株芽孢杆菌吸附镉和铜的研究 |
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| 引用本文： | 周志峰,张进忠,魏世强,李承碑,杨超,邹游. 1株芽孢杆菌吸附镉和铜的研究[J]. 西南大学学报(自然科学版), 2006, 28(3): 396-401 |
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| 作者姓名： | 周志峰 张进忠 魏世强 李承碑 杨超 邹游 |
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| 作者单位： | 西南大学资源环境学院，西南大学资源环境学院，西南大学资源环境学院，厦门大学化学化工学院，西南大学资源环境学院，西南大学资源环境学院 重庆400716，重庆400716，重庆市农业资源与环境重点实验室，重庆400716，重庆400716，重庆市农业资源与环境重点实验室，重庆400716，福建厦门361005，重庆400716，重庆400716 |
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| 摘 要： | 从土壤中分离并纯化获得1株芽孢杆菌(Bacillus)。通过该菌菌液对Cd2 和Cu2 的吸附实验,探讨了该菌株对上述2种重金属离子的吸附特性。结果表明:该菌株对2种重金属离子都有较强的吸附能力,但对Cu2 的吸附能力比对Cd2 强;其吸附行为可以用Langmu ir和Freund lich吸附方程描述,但更符合Freund lich吸附方程。与此同时,研究还考察了吸附条件的影响,并获得了最佳的吸附实验条件。
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| 关 键 词： | 芽孢杆菌 重金属 镉 铜 生物吸附 |
| 文章编号： | 1000-2642（2006）03-0396-06 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-02-27 |
STUDY ON ADSORPTION OF A BACILLUS STRAIN TO CADMIUM AND COPPER |
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| ZHOU Zhi-feng,ZHANG Jin-zhong,WEI Shi-qiang,LI Cheng-bei,YANG Chao,ZOU You. STUDY ON ADSORPTION OF A BACILLUS STRAIN TO CADMIUM AND COPPER[J]. Journal of southwest university (Natural science edition), 2006, 28(3): 396-401 |
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| Authors: | ZHOU Zhi-feng ZHANG Jin-zhong WEI Shi-qiang LI Cheng-bei YANG Chao ZOU You |
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| Affiliation: | 1. College of Resources and Environment Science, Southwest University, Chongqing 400716, China; 2. Chongqing Key Laboratory of Agricuhural Resources and Environment, Chongqing 400716, China ; 3. College of Chemistry and Chemical Engineering , Xiamen University, Xiamen, Fujian 361005, China |
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| Abstract: | A bacteria strain was separated and purified from the soil and identified as Bacillus.In an adsorption experiment,its biosorption characteristics to Cd~(2 ) and Cu~(2 ) were studied.The strain was shown to have a strong adsorptive capacity to the above two metal ions,with a stronger adsorptive capacity to copper ions than to cadmium ions.Its adsorption behavior could be described by either the Langmuir adsorption equation or the Freundlich adsorption equation,the latter equation being the better.The effect of experimental conditions on adsorption was examined and the optimum experimental conditions were identified. |
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| Keywords: | Bacillus heavy metal cadmium copper biosorption |
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