Abstract
It is very important to treat the desulphurization wastewater caused by the flue gas desulphurization process of the marine diesel engine. In this paper, the desulfurization wastewater discharged from the sodium-alkali seawater desulfurization system was studied and a desulfurization wastewater treatment control system based on Siemens PLC was designed. The monitoring system consisted of the machine side touch screen and the remote host computer. It was used to monitor the operation of the control system in real time, store system data, and display reports, curves, alarms, and other information. Furthermore, the automation of aeration, dosing, flotation, scraping, water quality monitoring, and discharge in the process of desulfurization wastewater treatment was realized by using this system.
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