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.
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El-Nawawy, A.S., El-Bagouri, I.H., Abdal, M. et al. Biodegradation of oily sludge in Kuwait soil. World J Microbiol Biotechnol 8, 618–620 (1992). https://doi.org/10.1007/BF01238800
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DOI: https://doi.org/10.1007/BF01238800