Dyes: Environmental Chemistry

Abstract

Effluent Treatment Methods Fate of Dyes Pollution Prevention Heavy Metals Toxicity Legislation

The adsorption of cationic dye from aqueous solution onto acid-activated andesite

“…Colored dye effluents with the appearance of color may interfere with light penetration in the receiving water bodies thereby disturbing the biological processes. Further, the effluents, which may be discharged in industrial effluents from dyestuff manufacturing and textile industries, may exhibit toxic effects toward microbial populations and can be toxic and/or carcinogenic to mammalian animal [1]. Therefore, environmental legislation has imposed stringent effluent limits on the concentrations of dye pollutants as chemical oxygen demand (COD), biochemical oxygen demand (BOD) and/or color.…”

Removal of Indigo Carmine Dye from Aqueous Solution Using Magnesium Hydroxide as an Adsorbent

“…These dyes are highly coloured, toxic, and carcinogenic in nature [2,3]. These effluents released from the textile and leather tanning industries containing 1 mg/L of dye are enough to impart colour to the water thus making it unpotable for daily use [4,5].…”

Application of ZnO‐Al2O3 Nanocomposite as Nanocatalyst for Photodegradation of Acid Violet 5B

“…The previous reports show that dye pollutions belong to textile industries is possible have destroyer effects on population of bacteria and also be able to carcinogen and toxic for mammals. [1][2] The dyes with C=C and N=N bonds and aromatic and heterocyclic rings in their structures change the color of the water. AV5B is a member of acidic dyes which has -SO 3 H groups.…”