Fuzzy PID Control of the PH in an Anaerobic Wastewater Treatment Process

Author

Kang Jiayu ; Wang Mengxiao ; Xiao Zhongjun ; Zhao Yan

Author_Institution

Shannxi Univ. of Sci. & Technol., Xi´an

fYear

2009

fDate

23-24 May 2009

Firstpage

1

Lastpage

4

Abstract

PH is an important environmental factor to anaerobic bacteria in anaerobic treatment system. Especially in the final anaerobic process stage, the methane bacteria need the optimal PH range from 6.8 to 7.2. According to the nonlinearity and large time-delay of PH control process, a novel method based on fuzzy PID control is proposed here, and corresponding simulations are realized to make comparison with the methods of traditional PID, fuzzy control and fuzzy PID. The results show that fuzzy PID has the optimal performance such as responsibility, stability and anti- disturbance.

Keywords

delays; fuzzy control; microorganisms; pH control; stability; three-term control; wastewater treatment; PH control process; anaerobic bacteria; anaerobic wastewater treatment process; antidisturbance; environmental factor; fuzzy PID control; methane bacteria; time-delay; Automatic control; Control systems; Environmental factors; Fuzzy control; Inductors; Microorganisms; Pollution measurement; Thermal degradation; Three-term control; Wastewater treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Systems and Applications, 2009. ISA 2009. International Workshop on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3893-8

Electronic_ISBN

978-1-4244-3894-5

Type

conf

DOI

10.1109/IWISA.2009.5072878

Filename

5072878