| Main Title |
Effects of Nitrogen Source on Crude Oil Biodegradation. |
| Author |
Wrenn, B. A. ;
Haines, J. R. ;
Venosa, A. D. ;
Kadkhodayan, M. ;
Suidan, M. T. ;
|
| CORP Author |
Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| Publisher |
c1994 |
| Year Published |
1994 |
| Report Number |
EPA-R-821029; EPA/600/J-94/489; |
| Stock Number |
PB95-136925 |
| Additional Subjects |
Crude oil ;
Biodegradation ;
Nitrification ;
Oil pollution ;
Cultures(Biology) ;
pH ;
Ammonia ;
Ammonium halides ;
Nitric acid ;
Reprints ;
Respirometry
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB95-136925 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
11p |
| Abstract |
The effects of NH4Cl and KNO3 on biodegradation of light Arabian crude oil by an oil-degrading enrichment culture were studied in respirometers. In poorly buffered sea salts medium, the pH decreased dramatically in cultures that contained NH4Cl, but not in those supplied with KNO3. The ammonia-associated pH decline was severe enough to competely stop oil biodegradation as measured by oxygen uptake. Regular adjustment of the culture pH allowed oil biodegradation to proceed normally. A small amount of nitrate accumulated in all cultures that contained ammonia, but nitrification accounted for less than 5% of the acid that was observed. |
