Main Title |
Techniques to reduce nitrogen in drainage effluent during transport / |
Author |
Williford, John W.,
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Other Authors |
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CORP Author |
United States. Bureau of Reclamation. Region 2. |
Publisher |
United States Environmental Protection Agency, Office of Research and Monitoring, Water Quality Office, |
Year Published |
1971 |
Report Number |
EPA-620-R-71-040 |
OCLC Number |
00761074 |
Subjects |
Water--Purification ;
Nitrogen ;
San Joaquin Valley (Calif) ;
California--San Joaquin Valley
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Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 620-R-71-040 |
c.1 |
Headquarters Library/Washington,DC |
05/22/2013 |
ELBD ARCHIVE |
EPA 620-R-71-040 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ERAD |
EPA 620-R-71-040 |
|
Region 9 Library/San Francisco,CA |
09/26/2013 |
|
Collation |
ix, 48 pages : illustrations, figures, tables ; 28 cm |
Notes |
"June 1971." "13030 ELY 6/71-10; REC-R2-71-10; DWR no. 174-13." "The agricultural drainage study was conducted under the direction of: Robert J. Pafford, Paul DeFalco, [and] John R. Terrink." Includes bibliographical references (pages 47-48). |
Contents Notes |
Three methods to remove nitrates from the agricultural drainage water from the San Luis Service Area in California were investigated. One method was a theoretical evaluation of nitrate removal by algae during the transport of the drainage water in the San Luis Canal or during storage in the Kesterson Reservoir. The other methods were designed to promote anaerobic bacterial denitrification in a continuous flow of drainage water. One method used barley straw and the other water grass grown in shallow ponds as the carbon energy source. Under optimum conditions both of these last two methods reduced the nitrate -N concentration of the drainage water from a maximum of about 30 mg/l to less than 2 mg /l. The cost of nitrogen removal by the shallow grass plot systems, the most economical and feasible method investigated, was estimated. |