Kim, Seung Jun 최용수 홍석원 권기한 정익재 2024-01-21T05:09:53Z 2024-01-21T05:09:53Z 2021-09-06 2005-04 2289-0971 https://pubs.kist.re.kr/handle/201004/136578 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. Korean 한국물환경학회 마을단위 소규모 하폐수처리 공정의 효율적 유지관리를 위한 전문가 시스템에 관한 연구 An Innovative Expert System for the Maintenance of On-site Wastewater Treatment Process for Small-scale Residential and Commercial Sites Article 2 한국물환경학회지, v.21, no.2, pp.132 - 140 한국물환경학회지 21 2 132 140 N kci ART001131909 Hybrid bioreactor Expert system Process control logic PLC system HMI system Small wastewater treatment system