Methylene blue dye: Toxicity and potential elimination technology from wastewater

🤖 Plain-English Summary

One of the popular cationic dyes that is environmentally persistent, toxic, carcinogenic and mutagenic is methylene blue (MB) dye. These drawbacks limit their industrial full-scale applications while adsorption technology was found to offer merits over others.

🔑 Key Findings

• It is commonly applied as synthetic dye for dyeing fabrics in clothing and textile industries and also for dyeing papers and leathers.
• Sequel to the magnitude of industrial usage, a large volume of methylene blue dye containing wastewater is discharged into groundwater and surface water.
• At doses more than 5 mk/kg, the monoamine oxidate inhibitory characteristics of MB dye can induce fatal serotonin toxicity in human, apart from being a threat to fauna in aquatic ecosystem.

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