adsorption and removal of pollutants (dyes) from wastewater using different types of low-cost adsorbents: a review

Discharge of dye-containing wastewater from various industries like textile, leather, paint, cosmetics etc. industries contributes to large amounts of pollution, leading to serious environmental problems such as quality deterioration of fresh water and endangering ecosystems' health. one of the conventional anti-fungal agent in aquaculture which should be eliminated from wastewaters prior to releasing it into natural water resources. tremendous volumes of colored wastewater are generated in textile, leather, paint, cosmetics etc. industries, causing eternal damage to the water resources. wastewaters released from dye production and application industries are responsible for water pollution. untreated disposal of the colored water into receiving water body causes damage to aquatic life and human bodies. due to the high toxicity of dyes at low concentrations, they must be treated before being discharged into the receiving body of water. therefore, environmental legislation has imposed severe limits on the discharged effluents' concentrations from dyestuff manufacturing and textile industries.