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无氧条件下复合锰氧化膜去除地下水中高浓度锰

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白凤明, 黄廷林, 程亚. 无氧条件下复合锰氧化膜去除地下水中高浓度锰[J]. 环境工程学报, 2019, 13(4): 878-884. doi: 10.12030/j.cjee.201809060
引用本文: 白凤明, 黄廷林, 程亚. 无氧条件下复合锰氧化膜去除地下水中高浓度锰[J]. 环境工程学报, 2019, 13(4): 878-884. doi: 10.12030/j.cjee.201809060
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BAI Fengming, HUANG Tinglin, CHENG Ya. Removal of high concentration manganese in groundwater by manganese co-oxide film under anaerobic condition[J]. Chinese Journal of Environmental Engineering, 2019, 13(4): 878-884. doi: 10.12030/j.cjee.201809060
Citation: BAI Fengming, HUANG Tinglin, CHENG Ya. Removal of high concentration manganese in groundwater by manganese co-oxide film under anaerobic condition[J]. Chinese Journal of Environmental Engineering, 2019, 13(4): 878-884. doi: 10.12030/j.cjee.201809060
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无氧条件下复合锰氧化膜去除地下水中高浓度锰

  • 1.

    西安建筑科技大学环境与市政工程学院，西安 710055

  • 基金项目:

    国家重点研发计划课题2016YFC0400706

    国家自然科学基金资助项目51778521国家重点研发计划课题(2016YFC0400706)

    国家自然科学基金资助项目(51778521)

Removal of high concentration manganese in groundwater by manganese co-oxide film under anaerobic condition

  • 1.

    School of Environment and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

  • Fund Project:

  • 摘要: 为考察进水无氧条件下复合锰氧化膜对地下水中高浓度Mn2+的去除效果，在中试规模条件下，对进水高溶解氧条件、低溶解氧条件以及无氧条件进行了对比研究，同时对滤柱沿层Mn2+浓度、pH和溶解氧等相关指标进行测定分析。结果表明，在无氧条件下(DO-1)，氧化膜可持续高效的去除水中高浓度的Mn2+，且该进水溶解氧条件下氧化膜对Mn2+的去除效果优于DO 1~2 mg·L-1条件下的去除效果，反应速率常数为DO 1~2 mg·L-1条件下反应速率常数的3.06倍，但与DO 6~7 mg·L-1条件下的速率常数相比较略低。对比有氧和无氧条件下氧化膜的SEM和XRD实验结果，无氧条件下长时间持续除Mn2+后滤料表面形态及结构未发生明显变化，表明氧化膜结构和性能均稳定。复合锰氧化膜实现无氧除Mn2+，可以省去地下水Mn2+去除过程中的曝气充氧环节，对地下水中Mn2+去除技术的推广具有重要意义。
    Abstract: In order to investigate the removal effect of high concentration Mn2+ in groundwater by manganese co-oxide film without oxygen, a pilot test was conducted to compare Mn2+ removal under high dissolved oxygen, low dissolved oxygen and anaerobic conditions, and Mn2+ concentration, pH, DO and other related indicators along the filter column were determined and analyzed. The results showed that under anaerobic condition (DO-1), the co-oxide film could maintain a high efficient performance on high concentration Mn2+ removal from groundwater, which was better than that under the condition of DO 1~2 mg·L-1. The corresponding reaction rate constant was 3.06 times that under the condition of DO 1~2 mg·L-1, but was slightly lower than that under the condition of DO 6~7 mg·L-1. In comparison with SEM and XRD detection results of oxide film under aerobic condition, the surface morphology and structure of the filter material didn’t show any significant change after long-term manganese removal under anaerobic condition, which confirmed that the formed oxide film had stable structure and properties. The manganese co-oxide film can remove Mn2+ under anaerobic condition, thus the aeration and oxygenation stage could be omitted in the process of removing groundwater Mn2+, which has great significance for the technology promotion of removing Mn2+ in groundwater.
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  • 刊出日期:  2019-04-15

无氧条件下复合锰氧化膜去除地下水中高浓度锰

  • 1. 西安建筑科技大学环境与市政工程学院，西安 710055
基金项目:

国家重点研发计划课题2016YFC0400706

国家自然科学基金资助项目51778521国家重点研发计划课题(2016YFC0400706)

国家自然科学基金资助项目(51778521)

摘要: 为考察进水无氧条件下复合锰氧化膜对地下水中高浓度Mn2+的去除效果，在中试规模条件下，对进水高溶解氧条件、低溶解氧条件以及无氧条件进行了对比研究，同时对滤柱沿层Mn2+浓度、pH和溶解氧等相关指标进行测定分析。结果表明，在无氧条件下(DO-1)，氧化膜可持续高效的去除水中高浓度的Mn2+，且该进水溶解氧条件下氧化膜对Mn2+的去除效果优于DO 1~2 mg·L-1条件下的去除效果，反应速率常数为DO 1~2 mg·L-1条件下反应速率常数的3.06倍，但与DO 6~7 mg·L-1条件下的速率常数相比较略低。对比有氧和无氧条件下氧化膜的SEM和XRD实验结果，无氧条件下长时间持续除Mn2+后滤料表面形态及结构未发生明显变化，表明氧化膜结构和性能均稳定。复合锰氧化膜实现无氧除Mn2+，可以省去地下水Mn2+去除过程中的曝气充氧环节，对地下水中Mn2+去除技术的推广具有重要意义。

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