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A combination of solvent extraction and freeze thaw for oil recovery from petroleum refinery wastewater treatment pond sludge

Sewage Sludge TreatmentSolvent ExtractionChemical EngineeringChemical Enhanced Oil RecoveryEngineeringOil RecoveryEnvironmental EngineeringPetroleum Refining ProcessEnhanced Oil RecoveryWater TreatmentFreeze ThawPetroleum RefiningPetroleum EngineeringWastewater Treatment