Volume 4 Issue 1
Jan.  2014
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XU Wei-xue, DUAN Liang, SONG Yong-hui, LI Hui, ZHI Er-quan. The Spatio-Temporal Characteristics of Various Chemical Speciation of Nitrogen in Qixing Wetland of the Liaohe River Reserve[J]. Journal of Environmental Engineering Technology, 2014, 4(1): 40-45. DOI: 10.3969/j.issn.1674-991X.2014.01.008
Citation: XU Wei-xue, DUAN Liang, SONG Yong-hui, LI Hui, ZHI Er-quan. The Spatio-Temporal Characteristics of Various Chemical Speciation of Nitrogen in Qixing Wetland of the Liaohe River Reserve[J]. Journal of Environmental Engineering Technology, 2014, 4(1): 40-45. DOI: 10.3969/j.issn.1674-991X.2014.01.008
shu

The Spatio-Temporal Characteristics of Various Chemical Speciation of Nitrogen in Qixing Wetland of the Liaohe River Reserve

  • 1.

    Institute of Environmental and Safety Engineering, Shenyang University of Chemical Technology

  • 2.

    Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences

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  • Corresponding author:

    DUAN Liang E-mail: liangduan@gmail.com

  • Received Date: July 15, 2013
  • Revised Date: October 16, 2013
  • Published Date: January 19, 2014
    Graphical Abstract
    • Abstract
  • The large constructed wetland engineering applied to the tributaries of the estuary is a new attempt in China, which may control the pollutant in tributaries and reduce the polluted load of the main stream. This research investigated the spatio-temporal characteristics of various chemical speciation of nitrogen in typical estuary of the Liaohe River Reserve. Based on the sampling work conducted in April to July of 2012,the spatio-temporal distribution characteristics of various nitrogen in the surface water and porewater of Qixing wetland were analyzed. The results showed that the NH3-N concentration was higher in pore water than in surface water. In contrast, the NO3-N and NO2-N concentrations were higher in surface water. The pollutants decreased through the wetland to outlet. NH3-N concentrations showed decreased trend over time, and the NO3-N and NO2-N concentrations were fluctuated. The Qixing wetlands can remove total of 2.05 t of NH3-N in the half year.
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