| 刘文娟,徐伟昌,王宝娥.两种酵母菌吸附铀的对比研究[J].南华大学学报(自然科学版),2003,(4):68~71.[.Biosorption of Uranium by Two Kinds of Yeasts[J].Journal of University of South China(Science and Technology),2003,(4):68~71.] |
| 两种酵母菌吸附铀的对比研究 |
| Biosorption of Uranium by Two Kinds of Yeasts |
| 修订日期：2003-09-10 |
| DOI： |
| 中文关键词: 酒精酵母菌 生物吸附 铀 预处理 解吸 |
| 英文关键词:yeast,biosorption,U,desorption, |
| 基金项目: |
| 刘文娟 徐伟昌 王宝娥 |
刘文娟(南华大学,化学化工学院,湖南,衡阳,421001)
徐伟昌(南华大学,化学化工学院,湖南,衡阳,421001)
王宝娥(南华大学,化学化工学院,湖南,衡阳,421001)
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| 中文摘要: |
| 研究了丹宝利和安琪酒精酵母菌对溶液中铀的吸附行为和各种影响因素,研究了用酸、碱和有机物对酵母菌预处理后对铀吸附的影响.两种酵母菌是溶液中铀的良好生物吸附剂,可吸附溶液中99%以上的铀,对铀的最大吸附量大于162.5mg/g.pH值是影响两种酵母菌吸附铀的重要因素,但对两者的影响不同.两种酵母菌的吸附等温线都符合Langmuir和Freundlich吸附模型.用0.1mol/LNaHCO3可解吸出92%以上的吸附铀. |
| 英文摘要: |
| The biosorption of Uranium on two kinds of yeasts from aqueous solution and the effects of the experimental conditions on the biosorption and the effects of various pretreatment procedures are investigated. The experimental results show that the yeasts are an efficient biosorbent, by which 99% U in aqueous solution can be adsorbed. The adsorption capacity of the yeasts is more than 162.5mgU/g.The relationship between concentration of U in aqueous solutions and adsorption capacity of U can be described by the Langmuir and Freundlich adsorption equation. The uranium adsorbed by the yeasts can be desorbed easily by 0.1mol/LNaHCO_3. |
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