Knowledge-based unmanned automation and control systems for the SBR wastewater treatment process

Abstract

Wastewater treatment processes are usually located in rural seclusion. we designed an unmanned and automated control system for a sequencing batch reactor (SBR) wastewater treatment pilot plant. The pilot plant was constructed in the countryside, a small distance from a large city. Networks and wireless modules were employed for data transmission. A local controller was installed in the SBR pilot plant as a client, and a monitoring system was located in another place as a server. The communication system consisted of an asymmetric digital subscriber line (ADSL) network and a code division multiple access (CDMA) module. A remote control and monitoring system were constructed in a laboratory in the city. We describe a fuzzy inference system which was constructed with the operator's assistance, and acquired sensor data to determine the threshold and influent.