Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Evaluation of the impact of sewage treatment plants in the Linked treatment through the sewage treatment computer simulation program

하수처리 전산모사 프로그램을 통한 연계처리시 하수처리장 영향 평가

  • Kim, Sungji (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 김성지 (서울과학기술대학교 건설시스템공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템공학과)
  • Received : 2020.11.06
  • Accepted : 2020.11.19
  • Published : 2020.11.30
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Abstract

Recently The amount of wastewater and linked wastewater is being increased every year due to industrial development, population growth, and improvement in living standards. Linked wastewater shows the feature-low flow rate and high concentration. Therefore, it has been shown that it has a great impact on the operation of the sewage treatment plant and costs a lot for treating linked wastewater. In this study, a scenario with low increase of water quality when the total amount of the inflow of linked wastewater was entered into individual reactors is obtained. According to the result of modeling, The effluent water quality get the least increment once the water was introduced into the influent and anoxic tank. We generated the various scenarios Based on these results. scenarios are varying according to inflow from linked waste water's distribution ration. As a result of modeling through various scenarios, it was found that the increment of TN and TP were at the least when the inflow of linked water was distributed with ratio between sewage (80%) and oxygen-free tank (20%).

산업발전과 인구증가, 생활수준의 향상으로 하·폐수 발생량 및 하수처리장 연계처리수가 매년증가 하고 있다. 연계처리수는 저유량 고농도의 특징을 가지고 있다. 따라서 하수처리장 운영에 큰 영향을 미치고 연계처리수를 처리하기 위해 많은 비용도 사용되는 것으로 나타났다. 본 연구에서는 연계처리수의 유입 유량을 개별 반응조로 전량 유입시킬 경우 방류수 수질이 적게 상승한 시나리오를 도출했고, 모델링 결과 유입하수, 무산소조에 유입시킬 경우 방류수 수질이 가장 적게 상승하는 것을 확인할 수 있었다. 이와 같은 결과를 바탕으로 연계처리수의 유입 유량을 유입하수와 무산소조로 분배하여 유입시킬 경우에 대하여 분배 비율에 대한 다양한 시나리오를 생성했다. 다양한 시나리오를 통해 모델링을 진행한 결과 유입하수(80%), 무산소조(20%)의 비율로 연계처리수의 유입유량을 분배 유입 시킬 경우 TN, TP의 수질이 가장 적게 상승하는 것으로 나타났다.

Keywords

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