海绵校园水体和底泥污染指标变化及相关性

Translated title of the contribution: Variations and correlations of pollutants in water and sediment in sponge campus

Jie Hou, Qiuhui Sun, Qizhong Guo, Hongzhi Kang, Huiqi Wang, Xun Liu, Kaixuan Zhu, Liang Chen

Research output: Contribution to journalArticlepeer-review

Abstract

The Peiyang Park campus of Tianjin University is a pilotproject of sponge campus construction. This paper focuses on the pollutants variation of the water and sediments in a artificial water system in the Peiyang Park campus, and the pollutants correlation between water and sediments are also analyzed by examining the correlation coefficients and multiple regression determination coefficients of the monitoring data. The results show that the waterpollutants concentration are mainly determined by pollution sources and water mobility, with a low level observed in summer and a high level in winter. Mostof the monitoredwater contaminants are nitrogen (total nitrogen from grade IV to worse than grade V and ammonia nitrogen from grade III to V) and chemical oxygen demand (COD from grade IV to worse than grade V). The sediment contaminants haveno significant seasonal concentration fluctuation observed in this study, and their major components are nitrogen (total nitrogen content of 0.1-17.1 mg/kg and ammonia nitrogen content of 0.6-4.7 mg/kg) and chemical oxygen demand (COD content of 26.9-190.4 mg/kg). In addition, the sum of the determination coefficients of contaminant concentration in water and sediment is larger or smaller than the coefficient of the whole water system (i.e. contaminant concentration of water plus contaminant concentration of sediment). This indicates that the contaminants in the man-made water system are affected by the water and sediment together and significant correlations exist between the water contaminants and sedimentcontaminants.

Translated title of the contributionVariations and correlations of pollutants in water and sediment in sponge campus
Original languageChinese (Traditional)
Pages (from-to)53-62
Number of pages10
JournalShuili Fadian Xuebao/Journal of Hydroelectric Engineering
Volume38
Issue number4
DOIs
StatePublished - Apr 25 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Mechanical Engineering
  • Energy Engineering and Power Technology

Keywords

  • Correlation
  • Man-madewater system
  • Sediment
  • Sponge campus
  • Water quality

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