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亚硝化混合菌的固定化及去除河水NH3-N影响因素

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于鲁冀, 李廷梅, 杨强, 吴小宁. 亚硝化混合菌的固定化及去除河水NH3-N影响因素[J]. 环境工程学报, 2014, 8(8): 3154-3160.
引用本文: 于鲁冀, 李廷梅, 杨强, 吴小宁. 亚硝化混合菌的固定化及去除河水NH3-N影响因素[J]. 环境工程学报, 2014, 8(8): 3154-3160.
shu
Yu Luji, Li Tingmei, Yang Qiang, Wu Xiaoning. Immobilization of mixed nitrosation bacteria and influencing factors of NH3-N removal in river water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3154-3160.
Citation: Yu Luji, Li Tingmei, Yang Qiang, Wu Xiaoning. Immobilization of mixed nitrosation bacteria and influencing factors of NH3-N removal in river water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3154-3160.
shu

亚硝化混合菌的固定化及去除河水NH3-N影响因素

  • 1.

    郑州大学水利与环境学院, 郑州 450002

  • 基金项目:

    国家“水体污染控制与治理”科技重大专项（2012ZX07204-001-004）

  • 中图分类号: X172;X522

Immobilization of mixed nitrosation bacteria and influencing factors of NH3-N removal in river water

  • 1.

    College of Water Conservancy & Environmental Engineering, Zhengzhou University, Zhengzhou 450002, China

  • Fund Project:

  • 摘要: 通过比较炉渣、陶粒和沸石3种吸附基质对污染物的吸附去除效果和吸附固定微生物的效果，筛选出廉价易得的炉渣作为载体基质，同时以2%海藻酸钠（SA）和8%聚乙烯醇（PVA）混合溶液作为包埋剂，用吸附-包埋的复合方法固定具有亚硝化功能的混合微生物，并考察了该PVA-SA-炉渣小球去除河水中NH3-N的效果和影响因素。结果表明，当投加比0.45、温度30~40℃、振荡速度150 r/min和初始NH3-N浓度6 mg/L时，微生物可保持较高的活性，经4 h处理，复合固定化颗粒对河水中NH3-N去除率为80%左右。该吸附-包埋固定化方法对于去除NH3-N具有一定的实用意义，也为河流水体净化提供了新的技术参考。
    Abstract: The inexpensive slag was chosen as the best adsorption carrier by comparing the pollutants removal ability and adsorptive immobilized effect of three different adsorbing materials (slag, ceramsite and zeolite). PVA-SA mixed liquor (2% sodium alginate and 8% polyvinyl alcohol) was selected as embedding medium, and adsorption-embedment method which consist of pre-adsorption on slag, embedment and cross-linking was used to immobilize mixed nitrosation bacteria. The NH3-N removal by the PVA-SA-slag beads and influencing factors were studied. The results showed that the composite immobilized beads could maintain high microbial activity and the removal rate of NH3-N was about 80% after treating about 4 hours when the dosing ratio was 0.45, temperature was between 30~40℃, oscillation speed was 150 r/min and initial NH3-N concentration was 6 mg/L. This adsorption-embedment method has a certain practical significance for NH3-N removal, which provided a new technical reference for the purification of river water.
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  • 收稿日期:  2013-08-14
  • 刊出日期:  2014-07-31
于鲁冀, 李廷梅, 杨强, 吴小宁. 亚硝化混合菌的固定化及去除河水NH3-N影响因素[J]. 环境工程学报, 2014, 8(8): 3154-3160.
引用本文: 于鲁冀, 李廷梅, 杨强, 吴小宁. 亚硝化混合菌的固定化及去除河水NH3-N影响因素[J]. 环境工程学报, 2014, 8(8): 3154-3160.
shu
Yu Luji, Li Tingmei, Yang Qiang, Wu Xiaoning. Immobilization of mixed nitrosation bacteria and influencing factors of NH3-N removal in river water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3154-3160.
Citation: Yu Luji, Li Tingmei, Yang Qiang, Wu Xiaoning. Immobilization of mixed nitrosation bacteria and influencing factors of NH3-N removal in river water[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3154-3160.
shu

亚硝化混合菌的固定化及去除河水NH3-N影响因素

  • 1. 郑州大学水利与环境学院, 郑州 450002
  • 收稿日期:  2013-08-14
基金项目:

国家“水体污染控制与治理”科技重大专项（2012ZX07204-001-004）

摘要: 通过比较炉渣、陶粒和沸石3种吸附基质对污染物的吸附去除效果和吸附固定微生物的效果，筛选出廉价易得的炉渣作为载体基质，同时以2%海藻酸钠（SA）和8%聚乙烯醇（PVA）混合溶液作为包埋剂，用吸附-包埋的复合方法固定具有亚硝化功能的混合微生物，并考察了该PVA-SA-炉渣小球去除河水中NH3-N的效果和影响因素。结果表明，当投加比0.45、温度30~40℃、振荡速度150 r/min和初始NH3-N浓度6 mg/L时，微生物可保持较高的活性，经4 h处理，复合固定化颗粒对河水中NH3-N去除率为80%左右。该吸附-包埋固定化方法对于去除NH3-N具有一定的实用意义，也为河流水体净化提供了新的技术参考。

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