What is red mud, how is it removed? - Vidyadip

Question

What is red mud, how is it removed?

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Answer

Red mud, also known as bauxite residue, is an industrial waste generated during the refinement of bauxite into alumina using the Bayer process. It is composed of various oxide compounds, including the iron oxides which give its red color.
Red mud consists of ferric oxide, sand, etc. left after bauxite dissolves in NaOH forming sodium aluminate and is removed by filtration.

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