Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Study on the Effecting Factors for T-N and T-P Removal in Wastewater Treatment Plant using Path Model Approach

경로도형 구축을 통한 하수처리장 질소 및 인 제거 영향인자 파악에 관한 연구

  • Cho, Yeongdae (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Lee, Seul-ah (Department of Environmental Engineering, Pusan National University) ;
  • Kim, Minsoo (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Kim, Hyosoo (Environsoft Co., Ltd.) ;
  • Choi, Myungwon (Environsoft Co., Ltd.) ;
  • Kim, Yejin (Department of Environmental Engineering, Catholic University of Pusan)
  • 조영대 (부산가톨릭대학교 환경공학과) ;
  • 이슬아 (부산대학교 환경공학과) ;
  • 김민수 (부산가톨릭대학교 환경공학과) ;
  • 김효수 ((주)엔바이론소프트) ;
  • 최명원 ((주)엔바이론소프트) ;
  • 김예진 (부산가톨릭대학교 환경공학과)
  • Received : 2018.08.14
  • Accepted : 2018.10.01
  • Published : 2018.11.30
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Abstract

In this study, an operational data set was analysed by establishing a path model to figure out the actual cause-effect relationship of a wastewater treatment plant (WWTP); in particular, for the effluent concentrations of T-N and T-P. To develop the path models, data sets of operational records including effluent concentrations and operational factors were obtained from a field scale WWTP of $680,000m^3$ of treatment capacity. The models showed that the relationship networks with the correlation coefficients between variables for objective expressions indicated the strength of each relationship. The suggested path models were verified according to whether the analyzation results matched known theories well, but sophisticated minute theoric relationships could not be cropped out distinctly. This indicates that only a few paths with strong theoric casual relationships were represented as measured data due to the high non-linearity of the mechanism of the removal process in a biological wastewater treatment.

Keywords

References

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