ABSTRACT
Leather processing has materialized as an important economical and industrial basis for the growth of many developing countries. The annual capacity for the production of leather is more than 10 million worldwide. Major problems have arisen from decades of production from the leather industry leading to poor environmental quality issues (Bosnic et al. 2000; Shakir et al. 2012). The tannery effluent from the leather industry generates indiscriminate removal of organic and inorganic substances along with the discharge of suspended or gas-solids oil and grease, nitrogen-containing compounds, and heavy metals either alone or in their reduced salt form (Song et al. 2004).
