2013 · 19 citations · 5 references
EngineeringChemical EngineeringEnvironmental EngineeringHazardous Waste ManagementSolid Waste ManagementWaste ManagementEnergy Recovery From WasteLeather MaterialsMaterials RecoveryWaste DisposalWaste GenerationWaste ValorizationAsh CharacterizationChrome-tanned LeatherCondensate CompositionDisposalLeather ChemistryPyrolysisWaste Feedstock CharacterizationWaste-to-product Conversion
Abstract — Disposal of chrome tanned leather waste (CTLW) generated in leather processing industries has many environmental implications. This paper presents a double pyrolysis (PI & PII) method to dispose hazardous chrome tanned leather solid waste by converting it into useful products. When CTLW was subjected to double pyrolysis, three major products obtained were; (i) an energy enriched combustible gas (32.01 %- PI & 42.45 %- PII); (ii) a high fraction condensate (33.32 % (PI & PII)) and (iii) a carbonaceous residual ash containing trivalent chromium (34.67%- PI & 24.23 %-PII). In addition, 2.73 % of liquid fuel, 75.24 % of nitrogen enriched liquid and 22.03 % distillate tar as sub-products from the high fraction condensate. SEM, GC-MS,
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