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Extraction of heavy metal from sewage sludge using ultrasound-assisted nitric acid

Sewage Sludge TreatmentChemical EngineeringEngineeringHeavy MetalEnvironmental EngineeringSewage SludgeEnvironmental RemediationWater TreatmentUltrasound-assisted Nitric AcidWastewater ManagementUltrasoundMineral ProcessingWaste ManagementWastewater Treatment