NO_x emission from incineration of organic wastewater containing aniline in fluidized bed

The characteristic of NO_x emission from the incineration of organic wastewater containing aniline (C₆H₅NH₂) from lab was investigated at 800-950°C in a bench scale bubbling fluidized bed. The results show that the conversion of organic N to NO_x is influenced by the temperature, the excess air and the content of organic nitrogen in wastewater. The conversion of N-NO_x decreases with increasing in temperature. When excess air coefficient is larger than 1.0-1.1, the conversion of N-NO_x increases with increasing in excess air coefficient, while when excess air is less than 1.0, the conversion of N-NO_x decreases rapidly to 5 percent at the excess air coefficient of 0.8. With the increase of aniline concentration in wastewater, the conversion of N-NO_x decreases, and is strongly dependent on temperature.