| 马蹄皮干粉颗粒吸附重金属Cr的特点及能力研究 |
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| 引用本文： | 毛献萍,黄志强,林庆宇.马蹄皮干粉颗粒吸附重金属Cr的特点及能力研究[J].贺州学院学报,2011,27(2):135-139. |
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| 作者姓名： | 毛献萍 黄志强 林庆宇 |
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| 作者单位： | 贺州学院桂东特色资源开发利用重点建设实验室,广西贺州,542800 |
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| 基金项目： | 2010年广西教育厅项目(201010LX536); 2010年贺州学院科研项目(2010ZRKY01) |
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| 摘 要： | 研究了废弃马蹄皮对重金属Cr(Ⅵ)、Cr(Ⅲ)的吸附特点和吸附性能,考察了pH值、吸附时间、重金属浓度等因素对吸附率的影响,确定了最佳吸附条件,并拟合出马蹄皮干粉颗粒吸附重金属的动力学和热力学模型。结果表明,马蹄皮干粉颗粒对水溶液中Cr(Ⅵ)、Cr(Ⅲ)具有较好的吸附能力,吸附过程符合Langmuir吸附等温热力学模型和伪二级动力学模型。
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| 关 键 词： | 马蹄皮 生物吸附 Cr(Ⅵ) Cr(Ⅲ) |
Study on Adsorption Characteristics and Mechanisms of Eleocharis Tuberosa Peel Dry Biomass Particles to Heavy Metal |
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| MAO Xian-ping,HUANG Zhi-qiang,LIN Qing-yu.Study on Adsorption Characteristics and Mechanisms of Eleocharis Tuberosa Peel Dry Biomass Particles to Heavy Metal[J].Journal of Wuzhou Teachers College of Guangxi,2011,27(2):135-139. |
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| Authors: | MAO Xian-ping HUANG Zhi-qiang LIN Qing-yu |
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| Institution: | MAO Xian-ping,HUANG Zhi-qiang,LIN Qing-yu Province Key Construction Laboratory of Characteristic Resources Research and Development of East Guangxi,Hezhou University,Hezhou Guangxi 542800 |
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| Abstract: | The adsorption characteristics and mechanisms of Eleocharis tuberosa peels on heavy metals was investigated.The effects of pH,biomass dosage,adsorption time and metal concentration on the adsorption efficiency were evaluated.The results show that the adsorption of heavy metals by Eleocharis tuberosa peels well meet the Langmuir adsorption isotherm models and pseudo second order kinetics thermodynamic model. |
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| Keywords: | Eleocharis tuberosa peel biosorption mechanisms Cr(Ⅵ) Cr(Ⅲ) |
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