Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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An Innovative Expert System for the Maintenance of On-site Wastewater Treatment Process for Small-scale Residential and Commercial Sites

마을단위 소규모 하·폐수처리 공정의 효율적 유지관리를 위한 전문가 시스템에 관한 연구

  • Kim, Seung-jun (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Choi, Yong-su (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Hong, Seok-won (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Kwon, Gi-han (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Chung, Ik-jae (Water Environment and Remediation Research Center, Korea Institute of Science and Technology)
  • 김승준 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 최용수 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 홍석원 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 권기한 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 정익재 (한국과학기술연구원 수질환경 및 복원연구센터)
  • Received : 2004.09.14
  • Accepted : 2004.12.03
  • Published : 2005.03.30
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Abstract

The pilot test of a new alternative for small wastewater treatment system has been conducted for two years. It consists of a hybrid bioreactor and the expert system including the process control logic, PLC system, and HMI for the process automation. In order to monitor and remote control its status, the real-time data was transferred from the on-site control center to the central station via a wireless local area network. More efficient and stable performances were observed at automatic operating mode compared with the manual. On an average, COD, SS, T-N and T-P concentrations in the effluent from the hybrid bioreactor were less than 14, 7, 12 and 0.9 mg/L, respectively. According to the result from pilot tests, the quality of treated wastewater with sand filtration was enough to be utilized again.

Keywords

References

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