Hong, SW Choi, YS Kim, SJ Kwon, G 2024-01-21T05:07:10Z 2024-01-21T05:07:10Z 2021-09-01 2005-05 0273-1223 https://pubs.kist.re.kr/handle/201004/136529 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 programmable logic controller and human-machine interface. In order to monitor its status, the real-time data was transferred from the remote station 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 laboratory experiments, the quality of treated wastewater with chemical coagulation process followed by sand filtration was enough to be utilized again if a final disinfection step is included. English I W A PUBLISHING Pilot-testing an alternative on-site wastewater treatment system for small communities and its automatic control Article 10.2166/wst.2005.0356 1 WATER SCIENCE AND TECHNOLOGY, v.51, no.10, pp.101 - 108 WATER SCIENCE AND TECHNOLOGY 51 10 101 108 N scie scopus 000231197600014 2-s2.0-23344432652 Engineering, Environmental Environmental Sciences Water Resources Engineering Environmental Sciences & Ecology Water Resources Article; Proceedings Paper TREATMENT PLANTS expert system human-machine interface (HMI) hybrid bioreactor programmable logic controller (PLC) small wastewater treatment system