Design of Domestic Sewage Treatment System Based on Programmable Logic Controller
Jinjin Dang
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China.
Yuxi Gu
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China.
Juncheng Zhou
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China.
Hexiu Huang
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China.
Lijun Wang *
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, China.
*Author to whom correspondence should be addressed.
Abstract
This paper focuses on the design of software and hardware for the purification and recycling of domestic sewage discharged from a residential area. According to the characteristics of domestic sewage, the process used in this paper is determined to be Sequencing Batch Reactor (SBR) process and the allocation of system input/output (I/O) port. According to the determination of the process flow to select appropriate instruments, sensors and other equipment, using Programmable Logic Controller (PLC) to design the system in manual mode and automatic mode of the program respectively, to achieve the function of sewage treatment.
Keywords: Domestic sewage, SBR, PLC, sewage treatment