1. Treatment of conditioned oily sludge from cameroon petroleum refinery by centrifugation;Bilo ’o Philemon;Int. J. Environ. Sci.,2013
2. Characterization of oily sludge from a wastewater treatment plant flocculation-flotation unit in a petroleum refinery and its treatment implications;Kriipsalu;J. Mater. Cycles Waste Manag.,2008
3. Eurostat, Statistics | Generation of waste by waste category, hazardousness and NACE, (n.d.). https://ec.europa.eu/eurostat/databrowser/view/ENV_WASGEN__custom_5884851/default/table?lang=en (accessed 20 April 2023).
4. Comprehensive characterization of an oily sludge from a petrol refinery: a step forward for its valorization within the circular economy strategy;Jerez;J. Environ. Manag.,2021
5. Ultrasonic desorption of petroleum hydrocarbons from crude oil contaminated soils;Li;J. Environ. Sci. Heal. Part A Toxic. Hazard. Subst. Environ. Eng.,2013