Predicting performance of grey and neural network in industrial effluent using online monitoring parameters

T. Y. Pai, S. H. Chuang, H. H. Ho, L. F. Yu, H. C. Su, H. C. Hu

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Grey model (GM) and artificial neural network (ANN) were employed to predict suspended solids (SSeff), chemical oxygen demand (CODeff) and pHeff in the effluent from conventional activated process of an industrial wastewater treatment plant using simple online monitoring parameters (pH in the equalization pond effluent; pH, temperature, and dissolved oxygen in the aeration tank). The results indicated that the minimum mean absolute percentage errors of 20.79, 6.09 and 0.71% for SSeff, CODeff and pHeff, respectively, could be achieved using different types of GMs. GM only required a small amount of data (at least four data) and the prediction results were even better than those of ANN. According to the results, the online monitoring parameters could be applied on the prediction of effluent quality. It also revealed that GM could predict the industrial effluent variation as its effluent data was insufficient.

Original languageEnglish
Pages (from-to)199-205
Number of pages7
JournalProcess Biochemistry
Volume43
Issue number2
DOIs
StatePublished - Feb 2008

Keywords

  • Artificial neural network
  • Biological treatment
  • Conventional activated sludge process
  • Grey model
  • Industrial park
  • Industrial wastewater treatment plant

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