Dissolved oxygen control of the activated sludge wastewater treatment process using Hedge Algebraic control

Author

Binh Lam Hoang ; Duy Nguyen Tien ; Fei Luo ; Phuong Huy Nguyen

Author_Institution

Sch. of Autom. Sci. & Eng., South China Univ. of Technol. (SCUT) GuangDong, Guangzhou, China

fYear

2014

fDate

14-16 Oct. 2014

Firstpage

827

Lastpage

832

Abstract

As being known, it is difficult for the activated sludge wastewater treatment process to be controlled due to its complex, time-varying and non-linear behavior. During this process, the control of the dissolved oxygen (DO) concentration in the reactors is very essential in the operation of the facility. In addition to evaluating some controllers for DO such as PI, FLC, this paper also introduces a new approach using Hedge Algebra (HA). Parameters of these controllers are optimized using genetic algorithm (GA). The results show that Hedge Algebra Controller (HAC) can be effectively used for DO control in activated sludge wastewater treatment (ASWT) process.

Keywords

PI control; algebra; fuzzy control; genetic algorithms; nonlinear control systems; sludge treatment; time-varying systems; wastewater treatment; FLC; HAC; PI control; activated sludge wastewater treatment process; dissolved oxygen control; fuzzy controllers; genetic algorithm; hedge algebraic control; nonlinear control; optimization; time-varying behavior; Frequency modulation; Mathematical model; Niobium; Pragmatics; Process control; Semantics; Wastewater treatment; Activated Sludge Wastewater Treatment; Dissolved Oxygen control; Hedge Algebra Controller;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Informatics (BMEI), 2014 7th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4799-5837-5

Type

conf

DOI

10.1109/BMEI.2014.7002886

Filename

7002886