说明：  模糊控制，希望对大家有用啊，适合初学者，控制理论与控制工程
(The current status of automation technology in wastewater treatment industry is analyzed. The successful application of fuzzy control technology in wastewater treatment is introduced. As complex and uncertainty it is difficult to build up the exact mathematical model for the nonlinear dynamic system of activated sludge process in wastewater treatment. In the paper, using chemical oxygen demand (COD) as fuzzy control parameter, a new system is developed to realize automatic control of sequence biologic reactor (SBR) process, which offers a practical approach for COD value automatic control in the treatment of wastewater.)