Mathematical Modeling of Effects of Nanomaterials on N2O Emission During Denitrification

Yiwen Liu, Lai Peng

 

ABSTRACT

Effects of nanomaterials on N2O emission during denitrification have previously been reported experimentally. A new mathematical model considering such effects is developed to describe the N2O production by heterotrophic denitrifiers for the first time. The model is successfully calibrated and validated using the data under different conditions. The model satisfactorily describes the nitrogen conversion data from the system. Modeling results show a much lower inhibition constant of nanomaterials for N2O reduction compared to those for nitrate and nitrite reduction, indicating a significant contribution of nanomaterials on N2O accumulation during denitrification.

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doi:10.11912/jws.2015.5.4.121-127