| 锰质滤膜的成分分析及除锰性能研究 |
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| 引用本文： | 张建锋,蒋亦媛,孙丽萍,郭瑞光. 锰质滤膜的成分分析及除锰性能研究[J]. 水处理技术, 2012, 38(8): 47-50 |
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| 作者姓名： | 张建锋 蒋亦媛 孙丽萍 郭瑞光 |
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| 作者单位： | 西安建筑科技大学环境与市政工程学院,陕西西安,710055 |
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| 基金项目： | 国家自然科学基金项目，陕西省教育厅专项科研计划 |
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| 摘 要： | 以锰砂为介质进行曝气接触氧化过滤除锰试验,XPS分析表明,在锰砂表面生成的锰质滤膜的主要成分为为MnOOH、Mn3O4和MnO2。人工合成MnOOH单体及MnOOH涂层的氧化铝颗粒(MCA),进行扫描电镜观测和过滤除锰试验。结果表明,MnOOH除锰效果稳定,在初始Mn2+的质量浓度为1.0 mg/L原水条件下,出水残余Mn2+的质量浓度可以稳定在0.05 mg/L以下。系列试验表明,在保证除锰效果的前提下,滤层厚度、滤速对系统运行影响不甚明显,除锰效果随pH至增大而改善。
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| 关 键 词： | 锰质滤膜 表面涂层处理 地下水除锰 |
COMPONENT ANALYSIS AND ARTIFICIAL SYNTHESIS OF PRECIPITATE ON SURFACE OF MANGANESE GREENSAND |
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| Zhang Jianfeng , Jiang Yiyuan , Sun Liping , Guo Ruiguang. COMPONENT ANALYSIS AND ARTIFICIAL SYNTHESIS OF PRECIPITATE ON SURFACE OF MANGANESE GREENSAND[J]. Technology of Water Treatment, 2012, 38(8): 47-50 |
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| Authors: | Zhang Jianfeng Jiang Yiyuan Sun Liping Guo Ruiguang |
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| Affiliation: | (School of Environmental & Municipal Engineering,Xi’an University of Architecture & Technology,Xi’an 710055,China) |
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| Abstract: | In the process of manganese removal from groundwater with aeration contact oxidation technique in the manganese greensand filter,the manganese oxide could precipitate on the surface of media gradually.The XPS analysis revealed that deposit was composed of MnOOH,Mn3O4and MnO2.The SEM analysis and manganese removal experiment were conducted with artificial synthesis of MnOOH monomer and MnOOH Coated Alumina particles(MCA).The results showed that the ρ(Mn2+) in effluent could remain below 0.05 mg/L while the ρ0(Mn2+)=1.0 mg/L in influent water,the effect of filter layer depth and filter speed on the performance was not obvious,and manganese removal efficiency could be improved with pH increasing. |
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| Keywords: | manganese precipitate coated treatment manganese removed from groundwater |
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