Hair-save unhairing method in leather processing accompanied by the use of cleaner technologies in all other stages of the processing contributes to substantial improvements in the waste water discharge.
Chrome tanning is widely practised all over the world. Tanneries in the SME sector in developing countries adopt traditional practices of chrome tanning where the uptake of chrome by pelt is, generally in the range of 50-60%. This results in a direct economic loss.
The tanning industry uses a considerable amount of hot water in its processing, mainly during the beamhouse, tanning and dyeing. Up to now, the industry has been heating water with fossil fuels, gas oil and natural gas, either with a conventional boiler or, in certain locations,