Leather fleshings are about 50-60% of the total solid waste generated in leather processing.
Key words: Leather fleshings, Waste protein, Surfactant, Water resisting agent, Water resistant leather.
Tanneries generate highly polluting solid and liquid wastes during leather processing at different stages such as fleshings, shavings, tanning, finishing etc.
De- liming of leather fleshings with HCL produces toxic H2S .
So, we have emphasized and successfully isolated protein from fleshings and converted into water resisting surfactant.
Three different fractions were isolated from hydrolyzed fleshings, as shown in Table-1.
Table-1: Characteristics of recovered fractions from fleshings.
Waste leather fleshings in wet condition were collected in polythene bags from tanneries of SITE Area Karachi.
These de-limed fleshings were stored in a refrigerator for further experimental work.
1 Kg de-limed fleshings were weighed and hydrolyzed with alkaline mixture i.
Three different surfactants have been prepared from waste protein extracted from leather fleshings.