Intelligent Control of Turbidity before Filtration in Waterworks

The dosing coagulation process in waterworks is a non-linear and time-variant process with a large time constant and large dead time. The conventional control can not meet the request of production, but the MFA controller which can control complex process effectively has a good track performance, adaptive capacity and robustness. MFA controller was adopted in an automatic control system of dosing coagulation process, which located in a waterworks of Foshan, Guangdong province. Experiments showed that MFA control system obtained a good perfermance which overcomed the disturbances of flow rate and the turbidity effectively.