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Korea Organic Resources Recycling Association (유기성자원학회)
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Feasibility Study on the Treatment of Food Waste Leachate in Municipal Wastewater Treatment Facility - Case of P city -

음폐수 공공하수처리시설 연계처리 타당성 평가 - P시 사례 -

  • Park, Jong-Hun (School of Civil, Environmental & Architectural Engineering, Korea University) ;
  • Kang, Shin-Young (Department of Environmental Engineering, Daegu University) ;
  • Kim, Sang-Hyoun (Department of Environmental Engineering, Daegu University)
  • Received : 2016.03.09
  • Accepted : 2016.04.25
  • Published : 2016.06.30
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Abstract

P city government considers to treat a part of food waste leachate in a municipal wastewater treatment plant (MWWTP), as the capacity of an existing combined treatment plant for food waste leachate is lower than the generation of food waste leachate in the city. Furthermore, the combined treatment plant also treats landfill leachate and directly discharges the effluent to the sea, which may result in a potential environmental problem. Therefore, this study examined the feasibility of the addition of food waste leachate and the effluent of the combined treatment facility on the MWWTP. Acceptable addition amount of the food waste streams, increased pollution loading on the MWWTP, and the treatment cost were estimated according to four scenarios. All the scenarios estimated that the MWWTP would receive most of the food waste streams according to the manual of the ministry of environment with little increase of pollution loading.

P시에서는 음폐수 처리를 위해 병합처리시설을 설치하였으나, 음폐수 발생량 대비 처리용량이 부족한 실정이다. 또한 병합처리시설 방류수는 인근 바다로 직방류 되고 있어 환경적 문제가 발생할 수 있다. 따라서 본 연구에서는 P하수처리장을 대상으로 P시 발생 음폐수 처리 초과 분량 및 병합처리시설 방류수 연계처리 가능성을 검토하였다. 예상 가능한 4개의 시나리오를 세운 후, 각각의 최대 음폐수 및 병합처리시설 방류수 허용 투입량을 산정 하고, 투입 후 P하수처리장 유입수 성상 변화및 시나리오별 예상 처리비용을 비교 하였다. 검토된 모든 시나리오에서 환경부의 음폐수 병합처리 업무지침을 준수하면서 음폐수 및 병합처리시설 방류수 대부분을 P하수처리장에 연계 처리 가능하며 하수처리장 부하에도 큰 영향을 주지 않을 것으로 산정 되었다.

Keywords

References

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