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봉화군에 도입된 마을하수도 하수 특성 및 처리 공법 분석

Analysis of RCSTP Wastewater Characteristics and Installed Treatment Process in Bong-Hwa Gun

  • 임지열 (고려대학교 건축사회환경공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템디자인공학과)
  • Im, Jiyeol (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 투고 : 2013.05.30
  • 심사 : 2013.07.12
  • 발행 : 2013.11.30

초록

소규모 농촌 지역 하수도 보급률은 도시지역의 약 40% 이하 수준이다. 농촌지역의 낮은 하수도 보급률은 상수원의 수질악화의 원인으로 보고되고 있다. 안동댐과 임하댐 상류에 위치하고 있는 봉화군에 신설된 마을하수도 11개소의 운전 결과를 분석하였다. 운전결과를 바탕으로 봉화군 마을하수도 특성과 도입된 처리 공법에 관한 분석을 실시하였다. 봉화군 유입 하수는 도시지역에 비해 고농도의 유기물과 영양염류를 함유하고 있다. 마을하수도에 도입된 처리 공법은 전체적으로 안정적인 처리 효율을 보였다. 하지만 영양염류의 경우 처리 효율의 변화가 크게 나타났다. 이는 마을하수도 운전 시영양염류 처리에 있어 운전 조건 관리에 관심을 기울여야 한다는 것을 의미한다.

Rural area sewage distribution rate is 40 % less than urban area. Previous research results announced that one of the reason in water resource pollution was caused of low rural area sewage distribution rate. Analysis on operation result of 11 RCSTP in Bong-hwa area which is located at the upper region of An-dong Dam and Im-ha Dam. Based on operation result, an analysis on characteristics of wastewater in Bong-hwa and treatment efficiency of installed treatment process was conducted. The wastewater influent of Bong-hwa contained high organic matter and nutrient than those of urban area. Treatment process showed totally stable treatment efficiency. But, The treatment efficiency for nutrient showed high fluctuation. This result means which is need to operation condition control of nutrient treatment when operating RCSTP.

키워드

참고문헌

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