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复合介质渗透反应格栅去除地下水中的氨氮

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孔祥科, 刘菲, 黄国鑫. 复合介质渗透反应格栅去除地下水中的氨氮[J]. 环境工程学报, 2014, 8(4): 1355-1360.
引用本文: 孔祥科, 刘菲, 黄国鑫. 复合介质渗透反应格栅去除地下水中的氨氮[J]. 环境工程学报, 2014, 8(4): 1355-1360.
shu
Kong Xiangke, Liu Fei, Huang Guoxin. Removal of ammonium from groundwater using multi-material permeable reactive barriers[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1355-1360.
Citation: Kong Xiangke, Liu Fei, Huang Guoxin. Removal of ammonium from groundwater using multi-material permeable reactive barriers[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1355-1360.
shu

复合介质渗透反应格栅去除地下水中的氨氮

  • 1.

    中国地质科学院水文地质环境地质研究所, 石家庄 050061

  • 2.

    中国地质大学(北京)水资源与环境学院, 北京 100083

  • 3.

    中国肉类食品综合研究中心, 北京 100068

  • 基金项目:

    中国地质科学院水文地质环境地质研究所基本科研业务费资助项目（SK201304）

    国家“水体污染控制与治理”科技重大专项（2009ZX07424-002-002）

  • 中图分类号: X523

Removal of ammonium from groundwater using multi-material permeable reactive barriers

  • 1.

    Institute of Hydrogeology and Environmental Geology, Shijiazhuang 050061, China

  • 2.

    School of Water Resources & Environment, China University of Geosciences, Beijing 100083, China

  • 3.

    China Meat Research Center, Beijing 100068, China

  • Fund Project:

  • 摘要: 针对受低浓度氨氮污染的地下水，实验筛选组合了不同的反应介质，利用串联的多介质填充柱模拟渗透反应格栅，通过物理吸附及生物硝化-反硝化作用来实现氮的去除。结果表明，在进水氨氮浓度为10 mg/L、流速为0.5 m/d的条件下，模拟柱对氨氮的去除率达到98%以上，且不会出现亚硝酸盐及硝酸盐浓度的升高。水体经过释氧柱后溶解氧由2 mg/L升高至10 mg/L以上，表明释氧材料可提供硝化细菌所需的好氧环境。好氧柱中填充易于生物挂膜的生物陶粒及对氨氮有较强吸附能力的沸石，二者联用通过生物硝化-物理吸附协同作用实现对氨氮的去除，其中生物作用实现的氨氮去除量占总去除量的50%左右。后续厌氧反应柱填充海绵铁除氧并利用松树皮颗粒作为碳源，创造反硝化菌生长条件，硝酸盐氮浓度可由10 mg/L降低至5 mg/L以下，实现对好氧反应阶段所产生的硝酸盐的去除，避免了地下水的二次污染。
    Abstract: This paper described a multi-material permeable reactive barriers for the ammonium-contaminated water remediation,using abiotic ion exchange and microbial degradation processes (nitrification and denitrification).A sequential setup combining different reactive materials and removal processes was designed in the laboratory-scale column test.The results showed that ammonium and its products(nitrite & nitrate) were removed to levels below the regulatory discharge limits,under the conditions of the flow velocity of 0.5 m/d and influent ammonium concentration of 10 mg/L.Oxygen releasing materials could supply enough oxygen for microbial nitrification.The concentration of dissolved oxygen in groundwater increased from 2 mg/L to 10 mg/L.Ammonium was efficiently removed in the first microbial nitrification column filled with bio-ceramsite and zeolite,in which 50% of the ammonium was removed through the biological process.The subsequent microbial denitrification columns filled with sponge iron and pine bark were used to remove nitrate formed in microbial nitrification compartment.Sponge iron could provide anaerobic environment,pine bark dissolved slowly in water and supplied enough carbon for the microbial growth.The ammonium concentration decreased from 10 mg/L to 5 mg/L after flowing through the anaerobic column,realizing the effective removal of nitrate formed in the first nitration compartment and avoiding the groundwater secondary pollution.
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  • [1] 李志萍, 张金炳, 屈吉鸿, 等.污染河水中氨氮对浅层地下水的影响.地球科学(中国地质大学学报), 2004, 29(3):363-368 Li Z.P., Zhang J.B., Qu J.H., et al.Influence on shallow groundwater by NH4+-N in polluted river.Earth Science-Journal of China University of Geosciences, 2004, 29(3):363-368(in Chinese)
    [2] 胡成.苏丹.综合水质标识指数法在浑河水质评价中的应用.生态环境学报, 2011, 20(1):186-192 Hu C., Su D.Application of comprehensive water quality identification index in water quality assessment of Hun River.Ecology and Environmental Sciences, 2011, 20(1):186-192(in Chinese)
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    [4] Phillips D.H., Van N.T, Bastiaens L., et al.Ten year performance evaluation of a field-scale zero-valent iron permeable reactive barrier installed to remediate trichloroethene contaminated groundwater.Environmental Science & Technology, 2010, 44(10):3861-3869
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    [9] 孔祥科, 张英, 毕二平.地下水修复系统中释氧材料的改进及pH调控.环境工程学报, 2012, 6(9):2935-2940 Kong X.K., Zhang Y., Bi E.P.Optimization of oxygen-releasing materials and pH regulation in groundwater remediation system.Chinese Journal of Environmental Engineering, 2012, 6(9):2935-2940(in Chinese)
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  • 收稿日期:  2013-04-22
  • 刊出日期:  2014-03-28
孔祥科, 刘菲, 黄国鑫. 复合介质渗透反应格栅去除地下水中的氨氮[J]. 环境工程学报, 2014, 8(4): 1355-1360.
引用本文: 孔祥科, 刘菲, 黄国鑫. 复合介质渗透反应格栅去除地下水中的氨氮[J]. 环境工程学报, 2014, 8(4): 1355-1360.
shu
Kong Xiangke, Liu Fei, Huang Guoxin. Removal of ammonium from groundwater using multi-material permeable reactive barriers[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1355-1360.
Citation: Kong Xiangke, Liu Fei, Huang Guoxin. Removal of ammonium from groundwater using multi-material permeable reactive barriers[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1355-1360.
shu

复合介质渗透反应格栅去除地下水中的氨氮

  • 1. 中国地质科学院水文地质环境地质研究所, 石家庄 050061
  • 2. 中国地质大学(北京)水资源与环境学院, 北京 100083
  • 3. 中国肉类食品综合研究中心, 北京 100068
  • 收稿日期:  2013-04-22
基金项目:

中国地质科学院水文地质环境地质研究所基本科研业务费资助项目（SK201304）

国家“水体污染控制与治理”科技重大专项（2009ZX07424-002-002）

摘要: 针对受低浓度氨氮污染的地下水，实验筛选组合了不同的反应介质，利用串联的多介质填充柱模拟渗透反应格栅，通过物理吸附及生物硝化-反硝化作用来实现氮的去除。结果表明，在进水氨氮浓度为10 mg/L、流速为0.5 m/d的条件下，模拟柱对氨氮的去除率达到98%以上，且不会出现亚硝酸盐及硝酸盐浓度的升高。水体经过释氧柱后溶解氧由2 mg/L升高至10 mg/L以上，表明释氧材料可提供硝化细菌所需的好氧环境。好氧柱中填充易于生物挂膜的生物陶粒及对氨氮有较强吸附能力的沸石，二者联用通过生物硝化-物理吸附协同作用实现对氨氮的去除，其中生物作用实现的氨氮去除量占总去除量的50%左右。后续厌氧反应柱填充海绵铁除氧并利用松树皮颗粒作为碳源，创造反硝化菌生长条件，硝酸盐氮浓度可由10 mg/L降低至5 mg/L以下，实现对好氧反应阶段所产生的硝酸盐的去除，避免了地下水的二次污染。

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