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The Investigation and Improvement plan of Contracting-out municipal wastewater treatment plant system in Korea

국내 하수처리장 관리대행 현황 및 제도 개선 방안

  • Im, Jiyeol (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 임지열 (서울과학기술대학교 건설시스템공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템공학과)
  • Received : 2017.04.24
  • Accepted : 2017.05.04
  • Published : 2017.05.31

Abstract

The market of the municipal wasetewater treatment plant (MWTP) operation is expanding across the world including Korea. The contracting-out system was introduced for the effective operation of MWTPs. However, an improvement of the contracting-out system of MWTP has been continuously required. This research investigated current operational status of MWTPs in Korea, to suggest the improvement of the cost effective MWTP operation to promote the contracting-out system of MWTP operation. Results showed that lower operational costs of MWTP were lower in larger MWTPs than in smaller MWTPs. Overall, MWTPs operated by a public enterprise showed lower operational costs than those operated by government agencies and private enterprises. Among the MWTPs similar in their treatment capacity, treatment process and operation period, MWTPs operated by private enterprises showed the lowest operational cost. According to the survey, managers and operators of MWTPs emphasized the importance of improvement on the methods of selecting operating agencies and estimating operationing costs. The results of this study should be useful as important supporting data to promote the contracting-out system for the MWTP operation.

하수처리장 운영 시장 규모는 전세계적으로 증가하고 있는 추세이다. 이에 하수처리장 관리 대행 제도는 국내 하수처리장의 효율적인 운영을 위해 도입되었지만 지속적으로 개선의 필요성이 제기되고 있다. 본 연구에서는 하수처리장 관리 제도의 활성화를 위해 현행 하수처리장 운영비용 현황 조사 및 개선 방안을 연구하였다. 하수처리장 용량이 클수록 하수처리단가가 감소하는 하는 경향을 보였다. 전체 하수처리장 운영 단가는 공기업이 가장 저렴하였지만, 유사 하수 처리장(유사 용량, 유사 공법, 유사 운영 기간)의 운영비용을 비교하였을 경우 민간 기업이 가장 저렴한 것으로 나타났다. 하수처리장 관리 및 운영 관계자들과의 면담 조사 결과 관리대행업자 선정 및 운영 비용 산정 방법 개선이 필요하다는 의견이 제시되었다. 본 연구는 하수처리장 관리 대행 활성화를 위한 방안 제시를 위한 기초 자료로 활용 될 수 있을 것으로 판단한다.

Keywords

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