title: Biodegradation of oily sludge in Kuwait soil.
abstract: Soil microorganisms were not inhibited by mixing oily sludge in soil up to 8.7% (w/w) oil (15% sludge). Adding NH 4 (+) and phosphate increased microbial activity. Microbial activity was also affected by seasonal variation. Thermotolerant microorganisms were more predominant during the summer. After 29 months, 72%, 84%, and 83% of the soil was degraded in fertilized soils dosed with 2.9, 5.8 and 8.7% oil, respectively.
authors.affiliation: Kuwait Institute for Scientific Research, P.O. Box 24885, 13109, Safat, Kuwait.
authors.forename: A S
authors.initials: AS
authors.lastname: El-Nawawy
authors.forename: I H
authors.initials: IH
authors.lastname: El-Bagouri
authors.forename: M
authors.initials: M
authors.lastname: Abdal
authors.forename: M S
authors.initials: MS
authors.lastname: Khalafawi