| Taking the effluent of the UASB-shortcut nitrification technique of typical high concentration poultry wastewater as the object, it is discussed that the ANAMMOX is applicable as atreatment of denitrification. Firstly, it successfully starts ANAMMOX reactor by the denitrifying activated sludge, on this basis, finding the optimal ammonia loading is about 0.2 kg/(m3·d) and the HRT of system is 2 d. Moreover, after studying on the operating conditions, the optimum is that pH is about 7.50; temperature is 30℃ without adding organic carbon. Under optimum conditions, the removal efficiencies of ammonia and nitrite nitrogen could be above 85% and 95%, the system is running well and has reproducibility. Finally, it reaches that the reaction rates of ammonia and nitrite nitrogen are 0.012 6 d－1 and 0.013 1 d－1 through dynamic analysis. So it can make the theory basis for spreading and application of after/continuous process, neural network simulation and “UASB+SBR shortcut nitrification+ANAMMOX+land treating system" newly combined process. |
