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电化学氧化法去除电解锰渣中的氨氮

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马小霞, 袁玉南, 唐金晶, 陶长元, 刘作华, 白利鸿. 电化学氧化法去除电解锰渣中的氨氮[J]. 环境化学, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
引用本文: 马小霞, 袁玉南, 唐金晶, 陶长元, 刘作华, 白利鸿. 电化学氧化法去除电解锰渣中的氨氮[J]. 环境化学, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
shu
MA Xiaoxia, YUAN Yunan, TANG Jinjing, TAO Changyuan, LIU Zuohua, BAI Lihong. Removal of ammonia nitrogen from electrolytic manganese residue by electrochemical oxidation[J]. Environmental Chemistry, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
Citation: MA Xiaoxia, YUAN Yunan, TANG Jinjing, TAO Changyuan, LIU Zuohua, BAI Lihong. Removal of ammonia nitrogen from electrolytic manganese residue by electrochemical oxidation[J]. Environmental Chemistry, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
shu

电化学氧化法去除电解锰渣中的氨氮

  • 1.

    重庆大学化学化工学院, 重庆, 400044;

  • 2.

    洁净能源与资源高效利用化工过程重庆市重点实验室, 重庆, 400044

  • 基金项目:

    国家自然科学基金（51404043）资助.

Removal of ammonia nitrogen from electrolytic manganese residue by electrochemical oxidation

  • 1.

    School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China;

  • 2.

    Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, Chongqing, 400044, China

  • Fund Project: Supported by the National Natural Science Foundation of China (51404043).

  • 摘要: 电解锰渣中含有大量的氨氮严重破坏生态环境.实验采用化学氧化法去除电解锰渣中的氨氮.通过X射线衍射（XRD）、X射线荧光分析（XRF）以及可见分光光度计等检测方法，分析了电解锰渣处理前后的结构和成分，研究了电化学氧化法处理锰渣中氨氮的工艺条件.结果表明，存在于电解锰渣中含量较高的锰离子优先在极板上发生氧化反应，生成的二氧化锰对氨氮的氧化具有抑制作用.通过碳酸钠固化锰离子后，在氯离子浓度为200 mg·L-1、电压为20 V、pH值为7的实验条件下，电解锰渣中起始浓度为203.06 mol·L-1的氨氮在180 min内完全去除.
    Abstract: Ammonia nitrogen in electrolytic manganese residue (EMR) constitutes potentially severe environmental risks. Electro-oxidation of ammonia in EMR was investigated in the present work. The structure and composition of the EMR before and after ammonia nitrogen removal were analyzed by X-ray diffraction, X-ray fluorescence and UV-Vis spectrophotometry. Results showed that Mn2+ was preferrably oxidized to MnO2 which inhibited the oxidation ammonia nitrogen. After the manganese ion was solidified by sodium carbonate, under the optimum conditions, such as solid to liquid ratio of 1:20(mass ratio), chloride ion concentration of 200 mg·L-1, voltage of 20 V, and pH=7, the ammonia nitrogen from EMR with an initial concentration of 203.06 mg·L-1 was removed completely in 180 min.
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出版历程
  • 收稿日期:  2016-05-30
  • 刊出日期:  2016-12-15
马小霞, 袁玉南, 唐金晶, 陶长元, 刘作华, 白利鸿. 电化学氧化法去除电解锰渣中的氨氮[J]. 环境化学, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
引用本文: 马小霞, 袁玉南, 唐金晶, 陶长元, 刘作华, 白利鸿. 电化学氧化法去除电解锰渣中的氨氮[J]. 环境化学, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
shu
MA Xiaoxia, YUAN Yunan, TANG Jinjing, TAO Changyuan, LIU Zuohua, BAI Lihong. Removal of ammonia nitrogen from electrolytic manganese residue by electrochemical oxidation[J]. Environmental Chemistry, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
Citation: MA Xiaoxia, YUAN Yunan, TANG Jinjing, TAO Changyuan, LIU Zuohua, BAI Lihong. Removal of ammonia nitrogen from electrolytic manganese residue by electrochemical oxidation[J]. Environmental Chemistry, 2016, 35(12): 2592-2598. doi: 10.7524/j.issn.0254-6108.2016.12.2016053005
shu

电化学氧化法去除电解锰渣中的氨氮

  • 1.  重庆大学化学化工学院, 重庆, 400044;
  • 2.  洁净能源与资源高效利用化工过程重庆市重点实验室, 重庆, 400044
  • 收稿日期:  2016-05-30
基金项目:

国家自然科学基金（51404043）资助.

摘要: 电解锰渣中含有大量的氨氮严重破坏生态环境.实验采用化学氧化法去除电解锰渣中的氨氮.通过X射线衍射（XRD）、X射线荧光分析（XRF）以及可见分光光度计等检测方法，分析了电解锰渣处理前后的结构和成分，研究了电化学氧化法处理锰渣中氨氮的工艺条件.结果表明，存在于电解锰渣中含量较高的锰离子优先在极板上发生氧化反应，生成的二氧化锰对氨氮的氧化具有抑制作用.通过碳酸钠固化锰离子后，在氯离子浓度为200 mg·L-1、电压为20 V、pH值为7的实验条件下，电解锰渣中起始浓度为203.06 mol·L-1的氨氮在180 min内完全去除.

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