| 纳米Fe3O4负载的浮游球衣菌去除重金属离子的工艺研究 |
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| 引用本文： | 关晓辉,秦玉春,王立文,尹荣,鲁敏,杨迎军.纳米Fe3O4负载的浮游球衣菌去除重金属离子的工艺研究[J].环境科学,2007,28(2):436-440. |
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| 作者姓名： | 关晓辉 秦玉春 王立文 尹荣 鲁敏 杨迎军 |
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| 作者单位： | 东北电力大学化学工程学院, 吉林132012;东北电力大学化学工程学院, 吉林132012;东北电力大学化学工程学院, 吉林132012;北华大学公共基础部, 吉林132013;东北电力大学化学工程学院, 吉林132012;东北电力大学化学工程学院, 吉林132012 |
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| 基金项目： | 吉林省科技发展计划项目（20050505）;吉林市科技发展计划项目（2005-03） |
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| 摘 要： | 以纳米Fe3O4负载浮游球衣菌（Sphaerotilus natans）制备复合生物吸附剂,对此吸附剂进行表征并考察了其吸附水中重金属离子的性能.红外光谱分析表明,此复合生物吸附剂表面的主要活性基团为酰胺基（—CONH—）和羟基（—OH）.吸附性能研究表明,菌含量和流量是影响复合生物吸附剂吸附重金属离子的主要因素,在Cu2+初始浓度c0<20 mg/L,菌含量1.5 g/L（菌/ Fe3O4＝3∶2）,流量0.96 L/h 时吸附剂对Cu2+的吸附效果最好;用稀盐酸对复合生物吸附剂进行再生,吸附剂可重复使用10次以上,再生液可重复使用3次; 吸附选择性为：Pb2+ > Cu2+ > Zn2+>Cd2+.
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| 关 键 词： | 浮游球衣菌 纳米Fe3O4 复合生物吸附剂 重金属离子 |
| 文章编号： | 0250-3301（2007）02-0436-05 |
| 收稿时间： | 2006/3/14 0:00:00 |
| 修稿时间： | 2006-03-142006-05-29 |
Study on the Disposal Process for Removing Heavy Metal Ions from Wastewater by Composite Biosorbent of Nano Fe3O4/Sphaerotilus natans |
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| GUAN Xiao-hui,QIN Yu-chun,WANG Li-wen,YIN Rong,LU Min and YANG Ying-jun.Study on the Disposal Process for Removing Heavy Metal Ions from Wastewater by Composite Biosorbent of Nano Fe3O4/Sphaerotilus natans[J].Chinese Journal of Environmental Science,2007,28(2):436-440. |
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| Authors: | GUAN Xiao-hui QIN Yu-chun WANG Li-wen YIN Rong LU Min and YANG Ying-jun |
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| Institution: | 1. School of Chemistry Engineering, Northeast Dianli University, Jilin 132012, China; 2. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; 3. Department of Common Courses, Beihua University, Jilin 132013, China |
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| Abstract: | Composite biosorbent nano Fe3O4/Sphaerotilus natans was prepared when nano Fe3O4 was used as carrier, then the composite biosorbent characterized by infrared instrument and investigated on adsorbing heavy metal ions from wastewater. Infrared spectrum analysis shows that--CONH--and--OH are principal activated groups of composite biosorbent. The experiment of adsorption shows that biomass concentration and flow velocity are main influencing factors. The composite biosorbent has best effect on the adsorption of Cu2+ under the conditions of biomass 1.5 g/L (Sphaerotilus natans/Fe3O4 = 3:2), flow velocity 0.96 L/h and initial concentration of Cu2+ was less than 20 mg/L. Composite biosorbent can be used for more 10 times when biosorbent was regenerated by HCl solution, and HCl solution can be used 3 times repeatedly. The selective sequence was Ph2+ > Cu2+ > Zn2+ > Cd2+. |
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| Keywords: | Sphaerotilus natans nano Fe3O4 composite biosorbent heavy metal ions |
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