Pyrolysis of sulfuric acid-treated chrome-tanned leather wastes: Kinetics, mechanism and evolved gas analysis

Autor: Zonghui Zhang, Yadi Hu, Fang Wang, Xuejing Zheng, Jie Liu, Keyong Tang
Rok vydání: 2022
Předmět:
Zdroj: Waste Management. 143:105-115
ISSN: 0956-053X
DOI: 10.1016/j.wasman.2022.02.030
Popis: Management and safe disposal of chrome-tanned leather wastes generated in leather industry are of great importance due to their potential health risks and environmental hazards. Herein, an integrated strategy was proposed for disposing of chrome-tanned leather scrap (CTLS). This method involves the separation of chromium salts from CTLS with sulfuric acid for recycling purpose, followed by pyrolysis of the acid-treated CTLS in an inert atmosphere. SEM/EDX analysis was employed to characterize the changes in composition and morphology of CTLS after acid treatment. CO
Databáze: OpenAIRE