Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Calculation of the target revenue water ratio of local waterworks considering economic feasibility

경제성을 고려한 지방상수도 목표 유수율 산정

  • Donghong Kim (Korea Water Resources Corporation, Local Water Supply Dept.) ;
  • Jaebum Lee (Korea Water Resources Corporation, Jeonnam Regional Collaboration Office) ;
  • Jungkwan Song (Korea Water Resources Corporation, Central Jeonnam Office) ;
  • Taeho Choi (Korea Water Resources Corporation, Water & Wastewater Research Center)
  • 김동홍 (한국수자원공사 지방상수도처) ;
  • 이재범 (한국수자원공사 전남지역협력단) ;
  • 송정관 (한국수자원공사 전남중부권지사) ;
  • 최태호 (한국수자원공사 상하수도연구소)
  • Received : 2023.09.08
  • Accepted : 2023.11.03
  • Published : 2023.12.15
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Abstract

As an advanced study on the method of calculating the target revenue water ratio of local waterworks through the leakage component analysis method proposed by Kim et al. (2022), this study developed a model to calculate the achievable revenue water ratio within the specified project cost, the required project cost to achieve the specified target revenue water ratio, and the economically appropriate target revenue water ratio level by considering the leakage reduction cost and leakage reduction benefit for each revenue water ratio improvement strategy, and conducted an applicability evaluation of the developed model using actual field data. The procedure for calculating the target revenue water ratio of local waterworks considering economics proposed in this study consists of three stages: physical data linkage model construction, leakage component analysis, and economic analysis, and the applicability was evaluated for Zone H with branch type and the Zone M network type. As a result of the application, it was calculated that approximately 32.5 billion won would be required to achieve the target revenue water ratio of 70% in the Zone H, and approximately KRW 10.5 billion would be required to achieve the target revenue water ratio of 75% in the Zone M. If the business scale of Zones H and M was corrected to 10,000 m3/day of water usage, the required project cost for a 1% improvement in the revenue water ratio of Zone H was calculated to be 0.7642 billion won and 0.4715 billion won for Zone M.

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References

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