Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Emergy Cost-Benefit Evaluation of the Down Stream of Nakdong River Using Environmental-Ecological Concept

환경 생태학적 개념을 이용한 낙동강 하류의 에머지 비용-편익 평가

  • 정화숙 (부산광역시 상수도사업본부 수질연구소) ;
  • 이석모 (부경대학교 생태공학과) ;
  • 손형식 (부산대학교 미생물학과) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소)
  • Received : 2013.03.18
  • Accepted : 2013.04.10
  • Published : 2013.04.30
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Abstract

The Nakdong River being used as drinking water sources for the Busan metropolitan city has the vulnerability of water management due to the fact that industrial areas are located in the upper Nakdong River. This study used emergy analysis method to evaluate ecological-economics of water treatment systems of D water treatment plant (WTP) where located in the downstream of the Nakdong River. The emergy methodology is a system evaluation tool that uses energy as the common currency to compare different resources on a common basis. Emergy yield ratio (EYR) and emergy sustainability index (EmSI) of D WTP were 1.16 and 0.18, respectively. It means not resources and sustainable system but consumer goods and not sustainable system. Ratio of emergy benefit to the purchaser (EBP) shows 2.7 times higher than economic costs. To change the weak water source and situations we need to diversity water intake.

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References

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