| 实时合成含铅类水滑石处理含铅废水的研究 |
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| 引用本文： | 乐金东,于少明. 实时合成含铅类水滑石处理含铅废水的研究[J]. 安徽化工, 2010, 36(1): 35-38. DOI: 10.3969/j.issn.1008-553X.2010.01.012 |
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| 作者姓名： | 乐金东 于少明 |
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| 作者单位： | 合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009 |
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| 摘 要： | 在模拟的含铅废水中同时加入Mg2＋和Al3＋，以NaOH和Na2CO3为沉淀剂，在Mg2＋、Al3＋共沉淀过程中Ph2＋能部分取代Mg2＋实时制备含铅类水滑石，并达到同时去除铅离子的目的。探讨了nMg＋Pb/nAl、nPb／n[Mg＋Pb]、pH值、晶化时间、铅初始浓度对去除率的影响。当n[Mg＋Pb/nAl、nPb/n[Mg＋Pb]为4和0．2，pH值为8-10，晶化时间12h以上，初始浓度在1000mg／L以下，铅去除率高达97％以上。XRD、Fr-IR对沉淀产物结构分析证实，实时合成的产物为含铅类水滑石。
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| 关 键 词： | 类水滑石 铅离子 废水处理 铅去除率 |
Treatment of Wastewater Containing Pb2+ by Synthesizing HTLCs in-situ |
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| LE Jin-dong,YU Shao-ming. Treatment of Wastewater Containing Pb2+ by Synthesizing HTLCs in-situ[J]. Anhui Chemical Industry, 2010, 36(1): 35-38. DOI: 10.3969/j.issn.1008-553X.2010.01.012 |
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| Authors: | LE Jin-dong YU Shao-ming |
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| Affiliation: | School of Chemical Engineering;Hefei University of Technology;Hefei 230009;China |
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| Abstract: | Adding Mg2+,Al3+,NaOH and Na2CO3 into wastewater containing Pb2+,the Pb2+ will be removed by Pb/Mg/Al-HTLCs synthesized in-situ. In this work,we studied the influence of [Mg+Pb]/Al and Pb/[Mg+Pb] mole ratio,pH value, crystallization time and Pb2+ initial concentration,on removal of Pb2+. The experimental results showed the maximum removal efficiency of Pb2+ could be attained when [Mg+Pb]/Al and Pb/[Mg+Pb] mole ratio were 4 and 0.2,pH was 8～10, crystallization time over 12h,Pb2+ initial concentration was under 1000mg/L,the removal efficiency could reach over 97%. And confirmed by XRD,FTIR of settlings,showed that was HTLCs. |
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| Keywords: | Hydrotalcite-like compounds(HTLCs) Pb2+ wastewater disposal removal efficiency of Pb2+ |
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