| 电场强化复合吸附塔处理重金属Cd2+离子的研究 |
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| 引用本文： | 刘丽艳,李鑫钢,孙津生.电场强化复合吸附塔处理重金属Cd2+离子的研究[J].环境化学,2007,26(2):168-170. |
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| 作者姓名： | 刘丽艳 李鑫钢 孙津生 |
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| 作者单位： | 天津大学化工学院,精馏技术国家工程研究中心,天津,300072 |
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| 基金项目： | 国家自然科学基金
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天津大学大型仪器开放基金 |
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| 摘 要： | 选择石英砂与枯草芽孢杆菌(Bacillus subtilis)死菌体组成复合吸附剂,在外加直流微电场的强化作用下,对废水中Cd2 离子进行穿透曲线测定,结果表明,Cd2 在石英砂装填的电生物复合吸附(EBA)装置中吸附作用较差,微电场的存在对重金属离子的吸附起到了明显的强化作用,微电场 复合吸附剂对重金属离子的吸附效果优于其它两种条件.
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| 关 键 词： | 镉 复合吸附剂 电场强化 电生物复合吸附塔 电场强化 吸附塔 处理 重金属 研究 BIOADSORPTION COMBINED CADMIUM 条件 吸附效果 金属离子 存在 吸附作用 装置 复合吸附剂 生物 装填 结果 测定 穿透曲线 |
| 修稿时间： | 2006-04-25 |
REMOVAL OF CADMIUM BY ELECTRO-INTENSIFIED COMBINED BIOADSORPTION |
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| LIU Li-yan,LI Xin-gang,SUN Jin-sheng.REMOVAL OF CADMIUM BY ELECTRO-INTENSIFIED COMBINED BIOADSORPTION[J].Environmental Chemistry,2007,26(2):168-170. |
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| Authors: | LIU Li-yan LI Xin-gang SUN Jin-sheng |
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| Institution: | National Engineering Research Center for Distillation Technology, School of Chemical Engineering and Technology , Tianjin University, Tianjin, 300072, China |
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| Abstract: | A method to removal heavy metal ions from wastewater by electro-intensified combined bioadsorption column has been developed. The combination of dead Bacillus subtilis and silica sand was chosen as the sorbent by considering the characteristic of biomass and inorganic sorbent. The removal performance of silica sand sorbent, electromigration intensified silica sorbent and electromigration intensified combined bioadsorption was compared by inspecting the breakthrough curve of Cd~(2 ) in the column. The experiment result shows that the sorption capacity of combined bioadsorbent is higher than silica and electromigration significantly can significantly intensify the sorption capacity of the combination sorbent. |
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| Keywords: | cadmium combined biosorbent electro-intensification electro-intensified combined bioadsorption |
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