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Salman Alizadeh Kordkandi,Ali Baradar Khoshfetrat,Asaad Faramarzi 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.61 No.-
A novel semi-mechanistic data-driven technique based on an evolutionary polynomial regression (EPR) was developed along with a kinetic analysis to evaluate the performance of an external loop upflow partially-aerated fixed-film bioreactor (UP/ASFF). Modelling of experimental data was carried out under different organic loading rates (OLR), solid retention time (SRT), and food to microorganisms’ ratio (F/M ratio). The results showed that the EPR model was the best approach for the performance evaluation of the UP/ASFF system with R2 of 0.93 and normalized MSE of 0.02 although the Stover-Kincannon’s model showed also a promising predication with high accuracy and R2 of 0.92.
Salman Alizadeh Kordkandi,Ali Baradar Khoshfetrat 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.31 No.-
Performance and energy efficiency of an upflow partially aerated submerged fixed-film (UP/ASFF)bioreactor was evaluated during a 10-month operation period. Increasing loading rates at constant HRTand COD/N increased nitrogen removals. Increase of non-aerated zone could also improve the nitrogenremovals up to 83%. Energy performance coefficient based on required electrical energy showed that theenergy efficiency of the system increases at lower COD/N value and bigger non-aerated zone forsimultaneous COD and nitrogen removal from the synthetic wastewater. The present study showed alsosimilar performance for municipal wastewater, demonstrating the potential of UP/ASFF system to treathigh-ammonium municipal wastewaters.