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处理低污染水的复合人工湿地脱氮过程

凌子微 仝欣楠 李亚红 王欣泽 徐开钦 孔海南

凌子微, 仝欣楠, 李亚红, 王欣泽, 徐开钦, 孔海南. 处理低污染水的复合人工湿地脱氮过程[J]. 环境科学研究, 2013, 26(3): 320-325.
引用本文: 凌子微, 仝欣楠, 李亚红, 王欣泽, 徐开钦, 孔海南. 处理低污染水的复合人工湿地脱氮过程[J]. 环境科学研究, 2013, 26(3): 320-325.
LING Zi-wei, TONG Xin-nan, LI Ya-hong, WANG Xin-ze, XU Kai-qin, KONG Hai-nan. Study on Nitrogen Removal Process of Treatments for Slightly Contaminated Water on Hybrid Constructed Wetlands[J]. Research of Environmental Sciences, 2013, 26(3): 320-325.
Citation: LING Zi-wei, TONG Xin-nan, LI Ya-hong, WANG Xin-ze, XU Kai-qin, KONG Hai-nan. Study on Nitrogen Removal Process of Treatments for Slightly Contaminated Water on Hybrid Constructed Wetlands[J]. Research of Environmental Sciences, 2013, 26(3): 320-325.

处理低污染水的复合人工湿地脱氮过程

基金项目: 国家水体污染控制与治理科技重大专项(2009ZX07105-003)

Study on Nitrogen Removal Process of Treatments for Slightly Contaminated Water on Hybrid Constructed Wetlands

  • 摘要: 为了解人工湿地处理低污染水的脱氮过程,以洱海流域邓北桥湿地为例,采用水质分析、细菌数量分析与硝化/反硝化强度分析相结合的方法,研究了复合型人工湿地处理低污染河水过程中的氮转化过程及污染物去除效果. 结果表明:在氧化塘-表流湿地-潜流湿地-表流湿地的复合型人工湿地中,ρ(NH3-N)和ρ(TN)呈逐级降低的趋势,NH3-N和TN的平均去除率分别可达53.24%和48.21%. 氧化塘和表流湿地的硝化强度显著高于潜流湿地,二级表流湿地中硝酸菌数量和表层硝化强度均为各工艺单元中最高的,分别为93.00×105g-1和8.42×102mg/(m3·h);潜流湿地中ρ(DO)较低,其反硝化作用强度为各单元最高的,其中表层反硝化强度为32.70×102mg/(m3·h),深层反硝化强度为32.09×102mg/(m3·h). 该复合型人工湿地中反硝化的主要单元为潜流湿地.

     

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出版历程
  • 收稿日期:  2012-11-24
  • 修回日期:  2013-01-15
  • 刊出日期:  2013-03-25

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