Stormwater Quality Characteristics and Reuse Analysis of Different Underlying Surfaces at Wanzhou North Station

Authors

  • Shaochun Yuan

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, China
    Chongqing Engineering Technology Research Center for Sponge City Construction, Chongqing, China
  • Ting Li

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, China
  • Qingwei Yang

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, China
  • Shun You

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, China
  • Tao He

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, China
  • Bo Lv

    Chongqing Engineering Technology Research Center for Sponge City Construction, Chongqing, China
    Chongqing Academy of Science and Technology, Chongqing, China

DOI:

https://doi.org/10.30564/jees.v4i2.4795
Received: 14 June 2022 | Revised: 26 September 2022 | Accepted: 28 September 2022 | Published Online: 24 October 2022

Abstract

In response to the water shortage in Wanzhou North Station (WNS), the authors investigated the stormwater quality characteristics with different underlying surfaces of WNS and carried out stormwater reuse analysis in conjunction with the InfoWorks ICM model. The results show that during heavy, torrential, and moderate rainfall, the road stormwater runoff has the highest concentrations of pollutants, with an average EMC (event mean concentration) value of 206 mg/L for COD. For the square runoff, the average EMC values of COD, SS, TN, and TP are 108 mg/L, 395 mg/L, 2.113 mg/L, and 0.128 mg/L, in comparison, the average EMC values of the corresponding indexes for the roof runoff are 65 mg/L, 212 mg/L, 1.449 mg/L, and 0.086 mg/L, respectively, demonstrating their potential for reuse. The R2 (coefficient of determination) of SS and COD in both roof and square runoff is greater than 0.85, with a good correlation, indicating that SS removal is the key to stormwater purification. InfoWorks ICM analysis shows that the recyclable volume of rainwater from WNS in 2018 is 29,410 m3, accounting for 61.8% of the total annual rainfall. This study is expected to provide an ideal reference for the stormwater management of public buildings in mountainous areas.

Keywords:

Stormwater quality; Underlying surface; Recyclable rainfall; Stormwater utilization

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How to Cite

Yuan, S., Li, T., Yang, Q., You, S., He, T., & Lv, B. (2022). Stormwater Quality Characteristics and Reuse Analysis of Different Underlying Surfaces at Wanzhou North Station . Journal of Environmental & Earth Sciences, 4(2), 45–53. https://doi.org/10.30564/jees.v4i2.4795

Issue

Vol. 4 , Iss. 2 (October 2022)

Article Type

Article

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Copyright © 2022 Author(s)

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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