Heavy metals in chrome-tanned shaving of the tannery industry are a potential hazard to the environment of Bangladesh

Abstract

During the tannery production process, huge quantities of waste especially chrome shaving are produced and are being discharged directly into the environment of Bangladesh. To know the concentration of some heavy metals in chrome shaving, the samples were collected, digested, and analyzed. Among the determined metals e.g. zinc (Zn), lead (Pb), and chromium (Cr), the Cr concentration was very high. The average concentration of Cr was 13,832.70 mg Kg−1 dry weight which was equivalent to almost 1.383%. Chromium in leather shavings poses a critical problem for disposal or management. Recovery of Cr and management of chrome shaving are strongly suggested.

Topics & Concepts