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RECORD NUMBER: 34 OF 154

Main Title Denitrification as a Pathway for Nitrate Removal in Aquatic Systems.
Author Nelson, D. W.; Owens, L. B.; Terry., R. E.;
CORP Author Purdue Univ., Lafayette, Ind. Water Resources Research Center.
Year Published 1973
Report Number TR-42; OWRR-A-019-IND; W74-06612 ; OWRR-A-019-IND(3)
Stock Number PB-231 305
Subjects Nitrogen; Reduction(Chemistry); Surface waters; Sediments; Lakes; Rivers; Inorganic nitrates; Bacteria; Anaerobic processes; Nutrients; Sediment water interactions; Denitrification
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB-231 305 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 93p
Abstract Denitrification was determined by decrease in total nitrogen in a water media or by a decrease in N-15 labelled nitrate in sediment systems. It was established that the numbers of denitrifying bacteria, pH, and nitrate concentration of most surface waters will support denitrification. The process is inhibited by high dissolved oxygen and low dissolved organic carbon. Low temperature also restricts denitrification. River water samples exhibited denitrification when amended with glucose and nitrate under anaerobic conditions, whereas, pond waters did not. The findings indicated that denitrification in the water phase is insignificant to the nitrogen status of most streams and lakes. However denitrification in sediments may result in a large removal of nitrate from aquatic systems each year. (Modified author abstract)
NTIS Title Notes Completion rept. 1 Jul 70-30 Jun 73.
PUB Date Free Form Dec 73
Category Codes 13B; 8H; 68D; 48G
NTIS Prices PC A05/MF A01
Document Type NT
Control Number 326588571
Cataloging Source NTIS/MT
Origin NTIS
Type CAT