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What is Leather Tanning and Finishing Process about?
The document summarizes the key steps in leather tanning and finishing processes and some environmental concerns. The tanning process involves dehairing, liming, pickling, and chromium tanning of hides. Finishing includes dyeing, fat liquoring, surface coating, and drying. Main wastes are hair, salts, alkalis, acids, chromium, and dyes. Sulphides and chromium require treatment - sulphides are oxidized and chromium is precipitated and regenerated for reuse in tanning.
- Author
- Ibrar Naqvi
- Language
- EN