Coupling simultaneous dissolved nitrate measurements with quantum cascade laser based nitrous oxide flux and isotopocule analysis to investigate the biogeochemical processes occurring in a denitrifying bioreactor.

David James Williams1, Bryan Maxwell2, Parikshit Deshmukh3 and Huaihai Chen1, (1)Environmental Protection Agency Research Triangle Park, Research Triangle Park, NC, United States, (2)North Carolina State University, Biological and Agricultural Engineering, Raleigh, NC, United States, (3)Jacobs Engineering Group, Durham, United States