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Comparisons of grey and neural network prediction of industrial park wastewater effluent using influent quality and online monitoring parameters

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Abstract

In this study, Grey model (GM) and artificial neural network (ANN) were employed to predict suspended solids (SSeff) and chemical oxygen demand (CODeff) in the effluent from a wastewater treatment plant in industrial park of Taiwan. When constructing model or predicting, the influent quality or online monitoring parameters were adopted as the input variables. ANN was also adopted for comparison. The results indicated that the minimum MAPEs of 16.13 and 9.85% for SSeff and CODeff could be achieved using GMs when online monitoring parameters were taken as the input variables. Although a good fitness could be achieved using ANN, they required a large quantity of data. Contrarily, GM only required a small amount of data (at least four data) and the prediction results were even better than those of ANN. Therefore, GM could be applied successfully in predicting effluent when the information was not sufficient. The results also indicated that these simple online monitoring parameters could be applied on prediction of effluent quality well.

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Authors and Affiliations

  1. Department of Environmental Engineering and Management, Chaoyang University of Technology, Wufeng, Taichung, 41349, Taiwan, Republic of China

    T. Y. Pai, S. H. Chuang, H. M. Lo, H. C. Su, L. F. Yu, H. C. Hu & P. J. Sung

  2. Department of Environmental and Safety Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin, 64002, Taiwan, Republic of China

    T. J. Wan

  3. Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 545, Taiwan, Republic of China

    Y. P. Tsai

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  1. T. Y. Pai
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  2. S. H. Chuang
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  3. T. J. Wan
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  4. H. M. Lo
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  5. Y. P. Tsai
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  6. H. C. Su
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  7. L. F. Yu
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  8. H. C. Hu
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  9. P. J. Sung
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Correspondence to T. Y. Pai.

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Pai, T.Y., Chuang, S.H., Wan, T.J. et al. Comparisons of grey and neural network prediction of industrial park wastewater effluent using influent quality and online monitoring parameters. Environ Monit Assess 146, 51–66 (2008). https://doi.org/10.1007/s10661-007-0059-7

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  • DOI: https://doi.org/10.1007/s10661-007-0059-7

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