Effect of the C-source and COD/N on Nitrite and Partial Nitrate Denitrification
Abstract
The main objectives of this study were: (i) to investigate dynamic specific denitrification rates (SDNR) from nitrite at various chemical oxygen demand (COD) / nitrogen (N) ratios using municipal wastewater (MWW) and acetate, and to study the kinetic parameters, (ii) to investigate the dynamic specific denitrification rates (SDNRs) from nitrite at various COD/N ratios in a system that uses methanol as a complementary carbon source, and studying the effect in case if nitrate replaced nitrite, and (iii) to investigate and compare between the nitrite shunt and N-PDN-anammox technologies through studying the dynamic specific denitrification rates (SDNRs) from nitrate and nitrite at various COD/N ratios in two systems that use acetate as carbon source, to investigate the difference in denitrifying microbial diversity and structure grown in nitrite denitrifying and partial denitrification environment, respectively.