| Removal of cadmium and zinc ions from aqueous solution by living Aspergillus niger |
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| 作者姓名： | 刘云国 樊霆 曾光明 李欣 童庆 叶菲 周鸣 徐卫华 黄玉娥 |
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| 作者单位： | Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China School of Resources and Environmental Engineering Wuhan University of Technology Wuhan 430 070 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China，Department of Environmental Science and Engineering Hunan University Changsha 410082 China |
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| 基金项目： | 浙江省湖州市自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 1 Introduction Heavy metals like copper, mercury, chromium, cadmium, lead, nickel and zinc cause serious threat to environment, animals and human for their extreme toxicity1]. Many industries including metal plating, mining, battery, pigment, dyestuff a…
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| 关 键 词： | 黑曲霉 生物吸着 镉 锌 动力学模型 水溶液 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2006-03-06 |
Removal of cadmium and zinc ions from aqueous solution by living Aspergillus niger |
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| LIU Yun-guo,FAN Ting,ZENG Guang-ming,LI Xin,TONG Qing,YE Fei,ZHOU Ming,XU Wei-hua,HUANG Yu-e.Removal of cadmium and zinc ions from aqueous solution by living Aspergillus niger[J].Transactions of Nonferrous Metals Society of China,2006,16(3):681-686. |
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| Authors: | LIU Yun-guo FAN Ting ZENG Guang-ming LI Xin TONG Qing YE Fei ZHOU Ming XU Wei-hua HUANG Yu-e |
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| Affiliation: | 1. Department of Environmental Science and Engineering, Hunan University, Changsha 410082, China;2. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China;1. School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;2. Department of Mathematics and Information Science, Tangshang Normal University, Tangshang 063000, China;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, PR China;2. Gree Electric Appliances Inc. of Zhuhai, Zhuhai 519070, PR China;3. School of Materials Science and Engineering, Sichuan University, Chengdu 610065, PR China;1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China;2. School of Science, China University of Geosciences, Beijing 100083, PR China;3. Institute of Applied Physics and Computational Mathematics, Beijing 100094, PR China;1. Departments of Cardiology, Ninth Affiliated Hospital of Medical College of Xi''an Jiaotong University, Xi''an, 710054, China;2. Departments of Neurology, The 451st Hospital of People''s Liberation Army, Xi''an, 710054, China;3. Departments of Osteology, Xi''an Honghui Hospital, Xi''an Jiaotong University, Xi''an, 710000, China;4. Departments of Gereology, Ninth Affiliated Hospital of Medical College of Xi''an Jiaotong University, Xi''an, 710054, China;5. Departments of Peripheral Angiopathy, The First Affiliated Hospital of Xi''an Jiaotong University, No. 277 Yanta West Road, Xi''an, 710061, China;1. University Cancer Centre Hamburg (UCCH), University Hospital of Hamburg-Eppendorf, Martinistr. 52 (O24), 20246 Hamburg, Germany;2. Department of Surgery, University of Schleswig-Holstein, Lübeck, Germany;3. Department of General and Visceral Surgery, University Hospital of Münster, Waldeyerstrasse 1, 48149 Münster, Germany;4. Department of Surgery, Flinders Medical Centre, Flinders University Adelaide, Flinders Drive, Bedford Park 5042 SA, Australia;5. The Nordakademie, Van-der-Smissen Str. 9, 22767 Hamburg, Germany |
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| Abstract: | The potential of living Aspergillus niger to remove cadmium and zinc from aqueous solution was investigated. Effects of pH, initial concentration, contact time, temperature and agitation rate on the biosorption of Cd(II) and Zn(II) ions were studied. The optimum adsorption pH value for Cd(II) and Zn(II) were 4.0 and 6.0. The best temperature and agitation rate were in the range of 25–30 °C and 120 r/min for all metal ions. Under the optimal conditions, the maximum uptake capacities of Cd(II) and Zn(II) ions are 15.50 mg/g and 23.70 mg/g at initial concentrations of 75 mg/L and 150 mg/L, respectively. Biosorption equilibrium is established within 24 h for cadmium and zinc ions. The adsorption data provide an excellent fit to Langmuir isotherm model. The results of the kinetic studies show that the rate of adsorption follows the pseudo-second order kinetics. |
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| Keywords: | Aspergillus niger biosorption cadmium zinc biosorption isotherm kinetic model |
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