Browsing Earth and Environmental Sciences by Subject "denitrification"
Now showing items 1-4 of 4
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Effect of organic carbon substrates on denitrification rates in sediment
(University of Waterloo, 2014-01-24)Nitrate (NO3-) is a ubiquitous groundwater contaminant in agricultural and wastewater discharge areas. The prediction of microbial mediated NO3- removal in subsurface environments requires an understanding of the rates ... -
Evidence for Participation of Anammox in Nitrogen Attenuation Observed in Groundwater Impacted by a Manure Lagoon
(University of Waterloo, 2012-01-23)Decades of agricultural use of fertilizer and manure has resulted in nitrogen being the most common groundwater contaminant. Of the known processes for nitrogen attenuation, both denitrification and anammox produce a ... -
Nitrous Oxide Production in the Grand River, Ontario, Canada: New Insights from Stable Isotope Analysis of Dissolved Nitrous Oxide
(University of Waterloo, 2008-10-07)Nitrous oxide (N₂O) is a powerful greenhouse gas, and its atmospheric concentration is increasing dramatically. N₂O is produced through the microbially-mediated processes of nitrification and denitrification. Since these ... -
Use of N2O and its Isotopic Composition to Investigate Nitrogen Processes in Groundwater
(University of Waterloo, 2010-10-01)This study explores the use of N2O and its isotopic composition to investigate nitrogen processes in groundwater aquifers. Groundwater sampling was undertaken in 2008-2009 at two septic system sites (Long Point site and ...