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Dual optimization strategy for N and P removal in a biological wastewater treatment plant / MinHan Kim in Industrial & engineering chemistry research, Vol. 48 N° 13 (Juillet 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6363–6371 Titre : Dual optimization strategy for N and P removal in a biological wastewater treatment plant Type de document : texte imprimé Auteurs : MinHan Kim, Auteur ; A. Seshagiri Rao, Auteur ; ChangKyoo Yoo, Auteur Année de publication : 2009 Article en page(s) : pp. 6363–6371 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Nitrogen  removal  Phosphorus  removal  Biological  nutrient  removal  process  Systematic  approach Résumé : A systematic approach is proposed to find optimal operational conditions for nitrogen and phosphorus (N, P) removal in a biological nutrient removal process. The approach is a dual optimization strategy using modeling, variable selection, design of experiments, and optimization with multiple response surface methodology. The study focused on determining interactive effects between independent variables for N and P removal, which were selected through a new sensitivity analysis considering the effluent quality index. After selecting key operational variables, a multiple response surface model based on a new desirability function was used for the dual optimization of both N and P removal. The proposed method was applied to a standard A2O process and obtained the optimized removal efficiencies of 78.0% and 80.0% for N and P, respectively. This study confirmed that the proposed dual optimization method was useful to systematically optimize N and P removal in a biological nutrient removal process and also can be applied to any other biological processes. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801689t [article] Dual optimization strategy for N and P removal in a biological wastewater treatment plant [texte imprimé] / MinHan Kim, Auteur ; A. Seshagiri Rao, Auteur ; ChangKyoo Yoo, Auteur . - 2009 . - pp. 6363–6371. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6363–6371 Mots-clés : Nitrogen  removal  Phosphorus  removal  Biological  nutrient  removal  process  Systematic  approach Résumé : A systematic approach is proposed to find optimal operational conditions for nitrogen and phosphorus (N, P) removal in a biological nutrient removal process. The approach is a dual optimization strategy using modeling, variable selection, design of experiments, and optimization with multiple response surface methodology. The study focused on determining interactive effects between independent variables for N and P removal, which were selected through a new sensitivity analysis considering the effluent quality index. After selecting key operational variables, a multiple response surface model based on a new desirability function was used for the dual optimization of both N and P removal. The proposed method was applied to a standard A2O process and obtained the optimized removal efficiencies of 78.0% and 80.0% for N and P, respectively. This study confirmed that the proposed dual optimization method was useful to systematically optimize N and P removal in a biological nutrient removal process and also can be applied to any other biological processes. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801689t