| 载铜蒙脱石对大肠杆菌K88吸附性能的研究 |
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| 引用本文： | 郭彤,马玉龙,朱宝长. 载铜蒙脱石对大肠杆菌K88吸附性能的研究[J]. 环境科学学报, 2009, 29(3): 542-547 |
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| 作者姓名： | 郭彤 马玉龙 朱宝长 |
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| 作者单位： | 1. 首都师范大学生命科学学院,北京,100048
2. 宁夏大学化学化工学院,银川,750021 |
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| 基金项目： | 教育部新世纪优秀人才支持计划 |
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| 摘 要： | 以蒙脱石(MMT)和硫酸铜为主要原料,制备了载铜蒙脱石(MMT-Cu),并对MMT-Cu吸附大肠杆菌K88的能力进行比较研究.结果表明:MMT和MMT-Cu对大肠杆菌K88均有较强的吸附作用,但载铜后蒙脱石吸附大肠杆菌的能力明显增强.细菌与吸附材料作用90min后可达到吸附平衡.介质pH值、离子强度和吸附温度对MMT和MMT-Cu吸附细菌的能力均有不同程度的影响.
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| 关 键 词： | 铜离子 蒙脱石 大肠杆菌K88 吸附 |
| 收稿时间： | 2008-04-17 |
| 修稿时间： | 2008-09-08 |
Adsorption of Escherichia coli K88 on Cu2+-loaded montmorillonite |
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| GUO Tong,MA Yulong and ZHU Baochang. Adsorption of Escherichia coli K88 on Cu2+-loaded montmorillonite[J]. Acta Scientiae Circumstantiae, 2009, 29(3): 542-547 |
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| Authors: | GUO Tong MA Yulong ZHU Baochang |
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| Affiliation: | GUO Tong1,MA Yulong2,ZHU Baochang11.College of life Science,Capital Normal University,Beijing 1000482.College of Chemistry , Chemical Engineering,Ningxia University,Yinchuan 750021 |
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| Abstract: | The adsorption capacity of Cu2+-loaded montmorillonite(MMT-Cu) for Escherichia coli K88 was investigated and compared to the adsorption of E.coli K88 on montmorillonite alone(MMT).MMT-Cu was prepared from MMT and CuSO4.Both MMT and MMT-Cu had a strong adsorption capacity for E.coli K88,but the adsorptive capacity of MMT-Cu for E.coli K88 was higher than that of MMT.The adsorption processes between E.coli K88 and either MMT or MMT-Cu reached equilibrium after 90 mins.Temperature,pH,and ionic strength in the ... |
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| Keywords: | cupric ion montmorillonite Escherichia coli K88 adsorption |
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