Reduction of operational cost and certification of safety for treated water are required for the membrane filtration process for drinking water. Therefore a model-based control system is developed to reduce operational cost. A process model is used for the model-based control system that calculates the transmembrane pressure (TMP) in the future. This allows the model-based control system to optimize the coagulant dosage for the pretreatment process and the backwash interval for the membrane filtration process automatically. The cost reduction effect is verified using a pilot-scale plant.
Development of a model-based control system for membrane filtration process
Koji Kageyama, Takeshi Takemoto, Hideyuki Tadokoro, Masaki Itoh; Development of a model-based control system for membrane filtration process. Journal of Water Supply: Research and Technology-Aqua 1 September 2010; 59 (6-7): 384–391. doi: https://doi.org/10.2166/aqua.2010.003
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