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| 浮游球衣菌去除废水中Pb2+的研究 | |
| 引用本文： | 关晓辉,秦玉春,赵洁,魏德洲.浮游球衣菌去除废水中Pb2+的研究[J].环境科学,2005,26(6):94-96. |
| 作者姓名： | 关晓辉 秦玉春 赵洁 魏德洲 |
| 作者单位： | 1. 东北电力学院应用化学系,吉林,132012 2. 东北电力学院应用化学系,吉林,132012;东北大学资源与土木工程学院,沈阳,110004 3. 东北大学资源与土木工程学院,沈阳,110004 |
| 基金项目： | 国家自然科学基金项目(50174014) |
| 摘 要： | 以浮游球衣菌为生物吸附剂,考察了菌铅比、pH、温度和时间等因素对Pb2+吸附的影响.结果表明,浮游球衣菌对Pb2+有很好的吸附效果,该过程10min内即可达到吸附平衡,且温度对吸附效果影响不大.当pH5.5,菌含量0.6 g/L,铅离子初始浓度不大于20 mg/L时,Pb2+去除率近100%,浮游球衣菌最大单位吸附量为2.1 mmol/g干菌体.浮游球衣菌对0～60 mg/LPb2+的吸附符合Freundlich方程.HCl和EDTA溶液可有效地将Pb2+从菌体上解吸下来并可重复使用. |
| 关 键 词： | 浮游球衣菌 Pb2+ 吸附特性 |
| 文章编号： | 0250-3301（2005）06-0094-03 |
| 收稿时间： | 2004-10-18 |
| 修稿时间： | 2004-10-182004-12-14 |
Research on Pb2+ Removal from Wastewater by Sphaerotilus natans |
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| GUAN Xiao-hui,QIN Yu-chun,ZHAO Jie and WEI De-zhou.Research on Pb2+ Removal from Wastewater by Sphaerotilus natans[J].Chinese Journal of Environmental Science,2005,26(6):94-96. | |
| Authors: | GUAN Xiao-hui QIN Yu-chun ZHAO Jie and WEI De-zhou |
| Institution: | 1.Department of Applied Chemistry, Northeast China Institute of Electric Power Engineering, J ilin 132012, China; 2. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China |
| Abstract: | As biosorbent used Sphaerotilus natans, influencing factors on removal of Pb2+ were investigated such as ratio of the biomass and lead, pH, temperature and time of adsorption. The results show that Sphaerotilus natans has good effect on adsorption of Pb2+. The process of adsorption reached equilibrium in 10 minutes. Temperature has no significant effect on the adsorption. Removal of Pb2+ approached to 100% under the condition of pH 5.5, 0.6 g/L and c0 < or =20 mg/L. The maximum adsorption amount was 2.1 mmol/g dry biomass . The adsorption was fitted with Freundlich isotherm adsorption equation under the concentration of Pb2+ 0-60 mg/L. HCI and EDTA can desorb the Pb2+ from the bacteria effectively. |
| Keywords: | Sphaerotilus natans Pb2+ adsorption character |
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