Design And Implementation Of Sewage Desalting Treatment Automatic Control System Based On PLC

With the rapid development of Chinese social economy, shortage of waterresources and water quality worsening are environmental problems. Sewage disposaltechnology as an important part of environmental protection get more and moreattention, and its requirement is much higher. At the same time, with the rapiddevelopment of computer technology and wastewater treatment processes, and thedemand is increasing on wastewater process automaticity, and it is necessary to treatsewage with advanced control technology. Most of current the sewage desaltingtreatment system have more or less inadequate in the level of automation, the treatedwater, and economic and social aspects.Wastewater desalination system based on PLC can substantial increase the level ofautomation, reduce labor costs, improve the quality of treated water. Thehigh-performance reverse osmosis membrane technology combined with PLCtechnology, on the one hand, the PLC technology applied to wastewater desalinationsystem to improve the level of automation, productivity and stability of the system,reduce the operator’s labor intensity; On the other hand, the high-performance reverseosmosis membrane technology applied to wastewater desalination system, realize dualmode process.The main contents are as follows: the computer as a host, PLC as controlledmachine, develop control software on the PLC, realize remote management andmonitoring PLC with powerful data processing capability and a good user interface, andachieve device precise control of high-performance reverse osmosis membrane, andachieve cooperate sewage desalination. The system overcomes the disadvantage oflower manual control accuracy, tedious operation running, and the larger misuse, has acertain advancement to achieve zero discharge of wastewater and improve theutilization of water. It is a great practical significance to solve the environmentalpollution and serious energy crisis increasingly.