Abstract:
:This study presents a comparison of denitrification rates and denitrification stoichiometry when using different sources of carbon. Denitrification tests were carried out in test bottles containing water and soil samples acquired at a nitrate-contaminated site and supplemented with either sucrose, acetate or ethanol. The tests demonstrated nitrate removal in all carbon source supplemented bottles. The rate of denitrification and the required amount of a carbon source, however, depended on the choice of substrate. Ethanol and acetate were found to provide the highest denitrification rate, that of 1.4 - 1.6 mg-N l(-1) d(-1). Sucrose-supplemented bottles demonstrated a significantly slower denitrification rate, that of 0.6 - 0.9 mg-N l(-1) d(-1). In addition to slow denitrification rates, sucrose-supported denitrification required more carbon source.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Lorrain MJ,Tartakovsky B,Peisajovich-Gilkstein A,Guioti SRdoi
10.1080/09593330.2004.9619397subject
Has Abstractpub_date
2004-09-01 00:00:00pages
1041-9issue
9eissn
0959-3330issn
1479-487Xjournal_volume
25pub_type
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