Water resources ensure the sustaining development of economy. Sewage discharged at random or half treated can expose serious pollution to the water resources. According to the process condition about the effluent of FGD and water quality, the effluent treatment system needs to be controlled by a set of PLC. There leaves communication interfaces and terminals between the PLC control equipment of effluent system and the FGD system.MCGS configuration of the visual interface to facilitate the general staff of the monitoring and management. Proposed sewage treatment works should not only attach importance to the traditional process of optimization, the new physical and chemical process and equipment development, but also to the use of advanced automatic control technology, with advanced software to enhance the sewage treatment capacity of the integrated monitoring and management. In reducing human Inputs on the basis of a more optimal control. This design focus on achieving PLC automatically add the drug to achieve system, To understand the process on the basis of process control by PLC, And set up more monitoring with PH value, through the high transparency of the monitoring by configuration software, recording data, improving management, To achieve sewage treatment and discharge requirements.
Keywords：FGD、Sewage、PLC、MCGS、Monitoring、 Control
