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盐度对活性污泥驯化前后硝化特性的影响

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李梅, 郑西来, 李玲玲. 盐度对活性污泥驯化前后硝化特性的影响[J]. 环境工程学报, 2007, 1(10): 108-111.
引用本文: 李梅, 郑西来, 李玲玲. 盐度对活性污泥驯化前后硝化特性的影响[J]. 环境工程学报, 2007, 1(10): 108-111.
shu
Li Mei, Zheng Xilai, Li Lingling. Effects of salinity on the nitrification of activated sludge before and after acclimation[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 108-111.
Citation: Li Mei, Zheng Xilai, Li Lingling. Effects of salinity on the nitrification of activated sludge before and after acclimation[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 108-111.
shu

盐度对活性污泥驯化前后硝化特性的影响

  • 1.

    中国海洋大学环境科学与工程学院，海洋环境与生态教育部重点实验室， 青岛 266100

  • 2.

    中国海洋大学环境科学与工程学院，海洋环境与生态教育部重点实验室， 青岛 266101

  • 3.

    青岛科技大学环境与安全工程学院，青岛 266042

  • 基金项目:

    高等学校博士学科点专项科研基金项目（20040423016）

  • 中图分类号: X703

Effects of salinity on the nitrification of activated sludge before and after acclimation

  • 1.

    Key Lab of Marine Environmental Science and Ecology, Ministry of Education,School of Environmental Science and Engineering, Ocean University of China, Qingdao 266100

  • 2.

    Key Lab of Marine Environmental Science and Ecology, Ministry of Education,School of Environmental Science and Engineering, Ocean University of China, Qingdao 266101

  • 3.

    School of Environmental and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042

  • Fund Project:

摘要

  • 摘要: 通过批量试验系统研究了盐度对常规活性污泥硝化作用的影响以及污泥在含盐环境中经过驯化后其硝化功能的变化。试验结果表明，硝化菌比亚硝化菌对盐度更敏感，废水中含盐浓度为5 g/L时，对常规活性污泥中的亚硝化菌影响不大，硝化菌会受到一定程度的抑制；当含盐浓度超过10 g/L时，硝化菌和亚硝化菌均会受到严重抑制；含盐浓度大于30 g/L时，亚硝化菌和硝化菌已经完全受到抑制。在污泥驯化初期，耐盐硝化菌群数量较少，比硝化速率较低，硝化产物中亚硝态氮大量积累；随着驯化时间的延长，耐盐硝化菌群数量增加，比硝化速率增加，亚硝态氮累积量减少。污泥经过驯化后，硝化菌群可以逐渐适应高盐环境，在含盐浓度为30 g/L时硝化反应仍能进行。
    Abstract: The effects of salinity on the nitrification of activated sludge without acclimation and with acclimation were studied respectively on the basis of batch experiments. In this study, it was found that nitrobacteria were more sensitive to salinity than nitrosomonas. For the activated sludge without acclimation, nitrosomonas were hardly inhibited and nitrobacteria were inhibited at saline content of 5 g/L. While they were both severely inhibited at 10 g/L and completely inhibited at 30 g/L. For the sludge acclimated in saline wastewater, the specific nitrification rate was lower and NO-2-N accumulates greatly in the initial phase of acclimation because of few halo-tolerant bacteria and the sensitivity of nitrobacteria to salinity. However, nitrosomonas increased and the specific nitrification rate increased as the acclimation time became longer, the nitrobacteria also increased to enough number to oxidize NO-2-N to NO-3-N rapidly. The nitrobacteria flora after acclimation could still be active at saline content of 30 g/L.
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出版历程
  • 收稿日期:  2007-07-18
李梅, 郑西来, 李玲玲. 盐度对活性污泥驯化前后硝化特性的影响[J]. 环境工程学报, 2007, 1(10): 108-111.
引用本文: 李梅, 郑西来, 李玲玲. 盐度对活性污泥驯化前后硝化特性的影响[J]. 环境工程学报, 2007, 1(10): 108-111.
shu
Li Mei, Zheng Xilai, Li Lingling. Effects of salinity on the nitrification of activated sludge before and after acclimation[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 108-111.
Citation: Li Mei, Zheng Xilai, Li Lingling. Effects of salinity on the nitrification of activated sludge before and after acclimation[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 108-111.
shu

盐度对活性污泥驯化前后硝化特性的影响

  • 1. 中国海洋大学环境科学与工程学院，海洋环境与生态教育部重点实验室， 青岛 266100
  • 2. 中国海洋大学环境科学与工程学院，海洋环境与生态教育部重点实验室， 青岛 266101
  • 3. 青岛科技大学环境与安全工程学院，青岛 266042
  • 收稿日期:  2007-07-18
基金项目:

高等学校博士学科点专项科研基金项目（20040423016）

摘要: 通过批量试验系统研究了盐度对常规活性污泥硝化作用的影响以及污泥在含盐环境中经过驯化后其硝化功能的变化。试验结果表明，硝化菌比亚硝化菌对盐度更敏感，废水中含盐浓度为5 g/L时，对常规活性污泥中的亚硝化菌影响不大，硝化菌会受到一定程度的抑制；当含盐浓度超过10 g/L时，硝化菌和亚硝化菌均会受到严重抑制；含盐浓度大于30 g/L时，亚硝化菌和硝化菌已经完全受到抑制。在污泥驯化初期，耐盐硝化菌群数量较少，比硝化速率较低，硝化产物中亚硝态氮大量积累；随着驯化时间的延长，耐盐硝化菌群数量增加，比硝化速率增加，亚硝态氮累积量减少。污泥经过驯化后，硝化菌群可以逐渐适应高盐环境，在含盐浓度为30 g/L时硝化反应仍能进行。

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