Journal of Environmental Engineering Technology ›› 2019, Vol. 9 ›› Issue (3): 225-232.doi: 10.12153/j.issn.1674-991X.2019.02.190

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DOM distribution characteristics and source analysis of Baitabu River

YAN Bingfei1,PENG Jianfeng2,DENG Qiyu1,LI Dan1,LIU Xueyu1,*(),LI Jie1   

  1. 1. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
    2. School of Environment, Tsinghua University, Beijing 100084, China
  • Received:2018-11-13 Online:2019-05-20 Published:2019-05-20
  • Contact: Xueyu LIU E-mail:liuxueyu@craes.org.cn

Abstract:

The methods of three-dimensional fluorescence spectroscopy and Pearson correlation analysis were applied to determine the pollution characteristics and origins of DOM in a typical urbanized river, Baitabu River in northeastern China. The results indicated that fluorescence peak types of the river included UV fulvic-like peak (A peak), visible fulvic-like peak (C peak), protein-like peak (B peak) and protein-like peak (T peak). The major components order of DOM was protein-like>soluble microbial byproduct-like>fulvic-like>humic-like. The relative content of spatial distribution of DOM showed middle and lower reaches>upper reaches. The source of DOM in Baitabu River showed double characteristics of land-sourced materials and microbial degradation, and the internal pollution caused by microbial degradation could not be ignored. According to Pearson correlation analysis, the DOM concentration was correlation with NH3-N and TP concentration which showed a significant positive relationship, but was significantly negative correlation with dissolved oxygen concentration.

Key words: Baitabu River, three-dimensional fluorescence spectrum, dissolved organic matter, contamination, source

CLC Number: 

  • X524