| 纯蒙脱石吸附Zn~（2＋）的研究 |
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| 引用本文： | 刘静静,陈天虎,彭书传.纯蒙脱石吸附Zn~（2＋）的研究[J].安徽农业科学,2011,39(35):21935-21936,21939. |
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| 作者姓名： | 刘静静 陈天虎 彭书传 |
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| 作者单位： | 1. 桂林矿产地质研究院,广西桂林541004;广西环境治理工程技术研究中心,广西桂林541004;广西环境工程与保护评价重点实验室,广西桂林541004
2. 合肥工业大学资源与环境工程学院,安徽合肥,230009 |
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| 摘 要： | 目的]探索纯蒙脱石处理含锌废水的因素与效果。方法]从蒙脱石提纯入手,进行纯蒙脱石处理含锌废水的试验研究,探讨纯蒙脱石对含锌废水处理效果的影响因素,确定纯蒙脱石去除水中Zn2＋的工艺条件,并研究纯蒙脱石对Zn2＋的吸附等温曲线。结果]纯蒙脱石对含锌废水处理效果主要受振荡速度、吸附时间、溶液pH值和投加量等因素影响。温度为30℃时纯蒙脱石对Zn2＋的吸附等温曲线更符合Langmuir方程和BET方程,相关系数均为0.986 9,最大吸附容量39.00 mg/g。在该试验条件下,纯蒙脱石对水中Zn2＋（20ml,Zn2＋浓度均为50 mg/L）达到最佳去除效果时的工艺条件为：振荡速度150 r/min,吸附时间60 min,溶液pH值6.10,此条件下Zn2＋去除率达到85.3%。结论]该研究为应用蒙脱石开发污水处理新材料提供了科学依据。
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| 关 键 词： | 纯蒙脱石 含锌废水 吸附 |
Experimental Study on Pure Montmorillonite in Treating Zn-containing Wastewater |
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| Institution: | LIU Jing-jing et al(Guilin Research Institute of Geology for Mineral Resources,Guilin,Guangxi 541004) |
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| Abstract: | Objective] The study aimed to explore the factors and effects on treating Zn-containing wastewater by pure montmorillonite.Method] The experiment had been done to investigate the pure montmorillonite in treating Zn-containing wastewater based on the purification of montmorillonite,the effecting factors of the pure montmorillonite on treating Zn-containing wastewater were explored,the technology conditions for removing the Zn in the wastewater by the pure montmorillonite were confirmed and the adsorbent isotherm curve of the pure montmorillonite to Zn2+was studied.Result] The treating effects of pure montmorillonite on the Zn-containing wastewater were mainly affected by such factors as the vibrating rate,adsorption time,aqueous pH value and montmorillonite adding amount.Under the temperature of 30 ℃,the adsorption isotherm curve of the pure montmorillonite to Zn2+cloud more accord with Langmuir equation and BET equations,with the correlation coefficient of 0.986 9 and the biggest adsorption capacity of 39.00 mg/g.Under the this test condition,the process conditions for best effect of removing the Zn2+(20 ml,Zn2+concn.were all 50 mg/L) in the wastewater by the pure montmorillonite were as follows:the oscillation speed of 150 r/min,adsorption time of 60 min and solution pH value of 6.10,under which,the removal rate of Zn2+reached 85.3%.Conclusion] The study provided the scientific basis for the application montmorillonite in developing the new materials used for the sewage treatment. |
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| Keywords: | Pure montmorillonite Zn-Containing Wastewater Adsorption |
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