대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제39권12호
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  • Pages.714-722
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  • 2017
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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수질오염총량관리계획 수립을 위한 유달율 적용방안 검증 연구

A Study on Verification of Delivery Ratio Methodology for Basic Plan at TPLMs(Total Pollutant Load Management System)

  • 이성준 (국립환경과학원 물환경연구부) ;
  • 이한필 ((주)이티워터) ;
  • 박지형 (국립환경과학원 물환경연구부) ;
  • 김용석 (국립환경과학원 물환경연구부) ;
  • 황하선 (국립환경과학원 물환경연구부)
  • Lee, Sung Jun (Water Environmental Research Department, National Institute of Environmental Research) ;
  • Rhee, Han Pil (ETWATERS Inc.) ;
  • Park, Ji Hyung (Water Environmental Research Department, National Institute of Environmental Research) ;
  • Kim, Yong Seok (Water Environmental Research Department, National Institute of Environmental Research) ;
  • Hwang, Ha Sun (Water Environmental Research Department, National Institute of Environmental Research)
  • 투고 : 2017.11.24
  • 심사 : 2017.12.22
  • 발행 : 2017.12.31
⟨ 이전 논문 다음 논문 ⟩

초록

수질오염총량관리제도(이하 총량제)는 하천의 목표수질을 달성하기 위해 유역에서 배출되는 오염물질의 총량을 관리하는 제도이다. 유역에서 배출되는 오염물질의 허용총량은 수질모델을 활용하여 산정하며, 이과정에서 오염부하량은 발생, 배출, 유달부하량으로 구분할 수 있다. 유달부하량은 배출부하량과 유달율의 곱으로 계산되며 유달율은 유역에서 배출된 오염물질이 하천의 특정지점에 도달하는 비율로 정의된다. 본 연구에서는 Hwang(2016) 등이 제시한 기준유량 조건의 유달율 추정방법을 영강유역에 적용하고 QUALKO2 수질모델의 수질 입력자료를 생성하여 기준유량 조건의 유달율 산정방법(식 (3))과 평균 개념의 유달율 산정 방법(식 (2))의 비교분석을 통해 유달율 추정방법에 대한 검증 연구를 수행하였다. 연구결과, 유달율 함수식은 식 (2)와 식 (3) 모두 사용 가능하나, 배출계수 적용에 따라 방법론을 달리할 필요가 있다. 식 (2)를 사용할 경우는 배출계수를 저수량, 평수량 구분없이 1로 동일하게 사용해야 하며, 식 (3)을 사용할 경우는 기술지침에서 정한 배출계수(저수량 0.15, 평수량 0.5)를 적용해야 할 것으로 판단된다.

The TPLMs is a system to manage the total amount of pollutants discharged from the watershed in order to achieve the target water quality of the river. In this process, the pollutant load can be classified into generation, discharge and delivery load. When using equation 2, the discharge coefficient should be 1. In case of using equation 3, it is considered that the discharge coefficient defined in the Technical Guideline should be applied. The delivery load is calculated as the product of the discharge load and the delivery ratio, and the delivery ratio is defined as the rate at which the pollutant discharged from the watershed reaches a specific point in the stream. In this study, the delivery ratio estimation method proposed by Hwang (2016) was applied to the Yonggang watershed in the Nakdong river. And the input data of QUALKO2 model was generated by using the estimated delivery ratio (equation 3) and the validation study was conducted by comparing with DRave (equation 2). As a result of the study, it is possible to use both the equation 2 and the equation 3, but it is necessary to change the methodology according to the application of the discharge coefficient.

키워드

참고문헌

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