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Showing posts from May, 2017

Tackling Environmental Hazards through Red Mud Management

Aluminium is used excessively in the modern world with extremely diverse due to its several unusual combinations of attributes. No other metallic element can be used in so many ways across such a variety of domains like in the home, in transport, on land, sea and in air, and in industry and commerce. Aluminium's usages are not always as obvious as they may seem, with sizeable proportions of manufactured aluminium and aluminium oxide going into other separate processes, like the manufacture of glass, rather than towards the common consumer products that we most readily associate Aluminium with. 

Over 95% of the Alumina manufactured globally is derived from Bauxite by the Bayer process. The Bauxite residue primarily consists of iron oxides, silicon oxide, titanium oxide and undissolved alumina together with a wide range of other oxides. This depends on the place of extracted bauxite and during refinery process, it leaves behind a residue known as Red Mud. It is composed of a mixture…