Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Analysis of Behavior Characteristics of Water Pollutants in Yeongsan River Using 3D Hydraulic Model

3차원 수리 모델을 이용한 영산강 수질오염물질의 수체 내 거동 특성 분석

  • Hye Yeon Oh (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Eun Jung Kim (Water Quality Research Division, Seoul Water Institute) ;
  • Jung Hyun Choi (Department of Environmental Science and Engineering, Ewha Womans University)
  • 오혜연 (이화여자대학교 환경공학과) ;
  • 김은정 (서울물연구원 수질연구과) ;
  • 최정현 (이화여자대학교 환경공학과)
  • Received : 2023.08.28
  • Accepted : 2023.11.01
  • Published : 2023.11.30
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Abstract

The Yeongsan River, a major water resource for Jeollanam-do, that is adjacent to industrial complexes and agricultural areas, is exposed to water pollution. Therefore, it is necessary to investigate the impact of water pollution incidences and prepare response systems for river environment safety for other water resources in the future. Environmental Fluid Dynamics Code (EFDC) was applied to the mainstream of the Yeongsan River where residential, commercial, and agricultural areas are located to analyze the behavior of pollutants conducting the scenario analysis. Considering the pollutants that affected the study area, two pollutants, oil and benzene, with different physical and chemical characteristics were selected for the analysis. As a result of comparing the actual and simulated values of the water elevation, temperature, and flow rate, it was confirmed that the model adequately reproduced the hydraulic characteristics of the Yeongsan River. The oil flow dynamics showed that an increase in flow rate led to reduction in the maximum height of the slick. Notably, the behavior of the oil was predominantly influenced by the wind conditions. In the case of benzene, lower flow scenarios exhibited decreased arrival times and residence times accompanied by an elevation in the maximum concentration levels. From the results of pollutant behavior in the study area, it is feasible to utilize the section of tributary confluence for collection and the weir area for dilution. This study enhances the understanding of the pollutant's behavior with different characteristics and develops effective control systems tailored to the physicochemical attributes of pollutants.

Keywords

Acknowledgement

이 논문은 2018년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임(2018R1A6A1A08025520)

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