Linear Active Disturbance Rejection Control of Dissolved Oxygen Concentration Based on Benchmark Simulation Model Number 1

Table 2

Control variables and their limitations.

Control handle	Limits	Controlled variables	Set point
Fixed oxygen transfer coefficient ()	0~360	Dissolved oxygen ()	2 g(-COD)/m^3
Feedback influent ()	0~92230	Nitrite and nitrate ()	1 g/m^3