Construction of COD simulation model for activated sludge process by recursive fuzzy neutral network

S. Tomida, Taizo Hanai, H. Honda, T. Kobayashi

研究成果: ジャーナルへの寄稿記事

11 引用 (Scopus)

抄録

Using a fuzzy neural network (FNN), we constructed a simulation model which estimates the effluent chemical oxygen demand (COD) value from daily routine measurements. Since the water quality of wastewater is changing day by day, an FNN model with a recursively renewing method of learning data (R-FNN) is proposed. With this R-FNN, learning data used to construct an FNN model are renewed with elapsed time so as to estimate the effluent COD value with good accuracy. The estimation results for 9 weeks data using R-FNN were compared with those using a conventional FNN. The average error using the R-FNN model was 0.36 mg/l, while that using the conventional FNN was 1.50 mg/l. Moreover, estimation of the effluent COD throughout one year was carried out, and the average error was only 0.40 mg/l. This result can show the usefulness of the R-FNN for the simulation model of the activated sludge process.

元の言語英語
ページ(範囲)369-375
ページ数7
ジャーナルJournal of Chemical Engineering of Japan
34
発行部数3
DOI
出版物ステータス出版済み - 3 2001
外部発表Yes

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Activated sludge process
Fuzzy neural networks
Chemical oxygen demand
Effluents
Water quality
Wastewater

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

これを引用

Construction of COD simulation model for activated sludge process by recursive fuzzy neutral network. / Tomida, S.; Hanai, Taizo; Honda, H.; Kobayashi, T.

:: Journal of Chemical Engineering of Japan, 巻 34, 番号 3, 03.2001, p. 369-375.

研究成果: ジャーナルへの寄稿記事

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