The common pollutant present in the effluent of leather industry is
Answers
Sulfur( in the form of SO4 ions),Chromium(Cr) and sodium(Na) ions were found to be in the highest concentration in leather industry effluents.
Their concentrations were well above the normal permissible limits. So it can be said that these industries use a lot of chemicals that behave as pollutants in the environment.
Water is also used in huge quantities in these industries that gets released as effluents and pollutes the environment.
The leather industry has had to face a global challenge for a long time now as there is a concern about the effect that its pollutants will have on the environment.
A huge amount of liquid waste is produced on a day to day basis. Poisonous chemicals such as lime, alkali, dyes, hydrogen sulfie, oils, bleaching agents and heavy metals are often untreated and released into the water bodies.