The control process was carried out without treating
the pelt with D-lysine and with 11% Basyntan FB 6. Finally, the
tanning drum was run for 1 h. The tanned leathers were removed
from the tannage bath without washing, piled and dried.The
physico-chemical properties of the leathers obtained were
assessed. The control and experimental tanning process liquor from
the each set of trial has been collected for the environmental
impact assessment analysis.