Treating Toxic Wastewater with Seaweed?

Wastewater containing toxic heavy metals & industrial dyes is a serious environmental dilemma.  Scientists in India have developed a nanomaterial drawn from seaweed to effectively treat toxic wastewater. Membrane-based filtration generally can’t filter out heavy metal pollutants, but researchers have synthesized a carbon based nanocomposite derived from seaweed which has shown a strong absorption capacity for various cationic and anionic dyes as well as lead and chromium.  With seaweed being used as the starting material, this carbon-based cleaning process is fully “green” without the use of chemicals.

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