Abstract
Leather industrial effluent is restrained as one of the most ecologically uncomplimentary industrial processes. The study aims to review leather effluents in the industrial processes and their involvement in environmental contamination in Bangladesh. The article was organized to compile all present data from different journals, books, reports, and web sources on tannery effluents characterization in the country. A wide variability of synthetic dyes, dyestuffs, and toxic chemicals is used in the leather and tannery industrial sector. The result revealed that some physicochemical water parameters such as electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), turbidity, chemical oxygen demand (COD), biological oxygen demand (BOD), etc. and one heavy metal, Cr of the leather industrial effluents of the country exceeded their standard limits. The effluents and solid wastes are affecting the soil systems, agriculture, aquatic environment, and public health since the development of the leather industries in the country. Now a day, its proper management and curative measures like the removal system have become the furthermost considerate responsibilities of Bangladesh. It is imperious to take instantaneous steps to diminish environmental contamination owing to discharge the of untreated leather industrial effluents.