Attention is invited to the fact that leather industry is the most polluting of all chemicalrnindustries, which in turn are more polluting than others. The generation of huge quantity ofrnchromium containing solid wastes is the beginning the real threat. With respect to solid wasternpotential, over 25% of the waste contains chromium. Implementation of cleaner technologies,rnwaste minimization, recovery and reuse of proteins and chemicals in the tanneries are veryrnimportant for suitable growth in leather industry, in the present context of stringentrnenvironmental regulations on one hand and increased public awareness on the other.rnEnvironmental protection aims at preventing pollution of soil, water and air. These requirernevolving efficient solid waste management and no effluent technologies.rnHence, in the present investigation an attempt has been made to isolate the chromium andrncollagen from chrome shaving waste thereby, converting the waste into valuable proteinrnproducts. Initially, the raw material and the isolated collagen hydrolysate were characterized forrnash, fat and chrome content and the results are 9.2%, 0.85%, 4.2mg/l and 0.9%, 0.9%, 2.3mg/lrnrespectively. Later the collagen was crosslinked with silica for application in retanning as proteinrnfiller. The retanning study has been carried out on wetblue sheep skins and the resultant leathersrnare subjected to scanning electron microscopic analysis and physical testing and the results arerncomparable with those of conventional ones. Finally, the isolated collagen is converted into gluernfor industrial applications. The colour of the prepared glue was compared with the commerciallyrnavailable glue (prepared from limed fleshing) and the overall colour difference between localrnglue and the glue from chrome shavings is more (Î”E=10).