PRODUCTION REPORT ON CHROMIUM REMOVAl FROM Skin Shavings

Abstract

The study was conducted to calculate the chromium contains in skin shavings of tannery industry and removal of it so that it can be used as feed. First initial chromium concentration was determined from untreated skin shavings sample. Then two studies were conducted for reducing chromium concentration from skin shavings. In case of first study 20 gm skin shavings and 10 gm Saccharomyces cerevisiae ware used in 500 ml water. The pH was measured 4.15 and it was kept in normal room temperature around 28OC for 48 hours. In case of another study some duckweed was used with15gm skin shavings in 3 litters water and kept for 48 hours in a plastic container in room temperature. When yeast cell grows it uptakes chromium ions from the solution and Duckweed has biosorption behavior for removal of several heavy metals including chromium from water solution. Then chromium concentration ware determined from the two samples treated with Saccharomyces cerevisiae and duckweed .Finally the percentage of chromium removed by two sample ware found 96.60% and 96.62% that ensure the above two process can be used for chromium removal from skin shavings.