Fuzzy Control of an Intermittent Aeration Process for Nutrients Removal

• YAGI Shunsaku

  Department of Industrial and Systems Engineering, Setsunan University

• KOHARA Hiroshi

  Panasonic Environmental Systems &Engineering Co., Ltd.

• NAKAMURA Yutaka

  Department of Industrial and Systems Engineering, Setsunan University

• SHIBA Sadataka

  Department of Industrial and Systems Engineering, Setsunan University

• ISHIKAWA Munetaka

  Department of Enviromental Engineerring, Osaka Institute of Technology

• TSUJINO Ryoji

  Department of Mechanical Engineering, Setsunan University

Abstract

Reduction of nutrients in wastewater is required to deal with eutrophication in enclosed seas and lakes. Since the biochemical mechanism of nutrients removal in activated sludge processes is complicated, it is not easy to control the process appropriately depending on the fluctuations of influent wastewater. In the present study, a fuzzy control system has been developed using knowledge acquired from skilled experts and computer simulation; and applied to a two-tank intermittently aerated activated sludge process in a wastewater treatment plant which had been controlled formerly by a simple timer method. The fuzzy control system outputs the on-off of aeration using If-Then fuzzy rules depending on several kinds of input variables. In conclusion, nutrients removal and energy consumption have been improved by the application of the fuzzy control system.

Journal

• Journal of the Japanese Society for Experimental Mechanics

  Journal of the Japanese Society for Experimental Mechanics 9 (3), 200-204, 2009

  The Japanese Society for Experimental Mechanics

Keywords

• Fuzzy Control
• Intermittent Aeration
• Nutrients Removal
• Activated Sludge
• Wastewater Treatment

Details

• CRID: 1390282680167234560
• NII Article ID: 130004489996
• NII Article ID: 10025343130
• NII Book ID: AA11822914
• DOI: 10.11395/jjsem.9.200
• ISSN: 18844219
• ISSN: 13464930
• NDL BIB ID: 10448142
• Web Site: http://id.ndl.go.jp/bib/10448142
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10448142
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed