BigPatents India

Conventional chrome tanning methodologies involve huge consumption of water and resultant pollution load of the discharged water due to involvement of various unit operations comprising the total process. In the ‘Eco-friendly treatment of exhaust chrome liquor for removal of Chromium and recycling the float’ most of the water consumed in the beam house operations can be recycled back to the industry with at par influent water quality. Furthermore, chromium sludge obtained can be reused in the industry again after calculated acidification. The resultant facts are very much self-explanatory regarding consumption of water and reduction of pollution feature, less consumption of energy and faster production cycle. The principal feature to be highlighted for this special kind of treatment procedure is that huge water consumption can be compensated by recycling water to the industry, utilization and treatment of soak liquor and chrome liquor simultaneously, recovery of precipitated chromium. This feature may help the industry to get rid of the crisis of availability of ground water and abolition of the stigma as highly polluting industry to some extent. (FIG. Nil)