The tannery industry is characterized by the consumption of a large quantity water, around 30–40 m3 for processing 1000 kg hide or skin. This amount becomes wastewater, containing about 300 different chemicals, mainly refractory organic compounds, with high chemical oxygen demand (COD), total dissolved salts (TDS), chromium, and evolution toxic gases, such as ammonia sulfides, etc. remaining ta...

In the present study, impact of tannery effluents and their subsequent on accumulation some metals (Ca, K, Na, Mg, Cl, S, Cr, Fe, Mn, Pb, Zn) in water soil samples around South Khartoum industrial area, Khartoum-Sudan were studied. Concentration (SA), adjacent contaminated pond (SB), Soil (SC), uncontaminated (SD) assessed by atomic absorption photometer. The results showed high levels Ca, Zn w...

Leather tanning effluents are a source of severe environmental impacts. In particular, the unhairing stage, belonging to the beamhouse processes, generates an alkaline wastewater with high concentrations of organic matter, sulphides, suspended solids, and salts, which shows significant toxicity. The objective of this work was to evaluate the biodegradation of this industrial wastewater by combi...

Composting has been recognized as one of the most cost effective and environmentally sound alternatives for organic wastes recycling from long and composted wastes have a potential to substitute inorganic fertilizers. We investigated the potential of composted tannery sludge for ornamental purposes and to examine the effects of two different composts and concentrations on ornamental Capsicum gr...

Tanning industries are one of the main economic activities in Bangladesh. It has been well documented that wastewater discharged from tanneries without appropriate treatment results in detrimental effects on the ecosystem. No ecotoxicity evaluation of any aquatic environment in Bangladesh has been conducted so far. In this study a battery of toxicity bioassays and chemical analysis were carried...