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Model predictive control application in dissolved oxygen control

Since wastewater management have nonlinear feature meanwhile the inlet wastewater composition is diversity and the plant construction is complicated as well. Therefore, it is a big challenge to do the wastewater management. Among many various controlling elements, oxygen is an important variable to operate in wastewater management. To make sure the oxygen level in aerobic system arrive the criterion, one predictive controller according to model has been recommended in this work. The simulation study is implemented with a two-order state space matrix. The results from simulation display that the oxygen density can be well controlled to the expected level under MPC.