Bauxite mining and refinery: investigating prospective of red mud management strategies

Marcel, Soropugui M. and Al-Khatib, Ma'an Fahmi Rashid and Jami, Mohammed Saedi and Zainudin, Zaki (2018) Bauxite mining and refinery: investigating prospective of red mud management strategies. In: International Engineering Research Conference 2018, 27th June 2018, Selangor.

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Abstract

The bauxite or aluminum industry continues to play an important role in the global economy. However, efforts are still needed in the sector in order to meet the objective of the millennium for sustainability. Serious environmental and health concerns are raised at every stage of the industry starting from the bauxite preliminary exploration to the mining activities as well as the alumina refining process. In addition to the excessive energy requirement, huge amounts of greenhouse gases including carbon dioxide (CO2) and perfluorocarbon gases (PFCs) are emitted. Besides, large superficies of lands and forests are destroyed every year. Red mud obtained from alumina processing is among the world's biggest industrial wastes characterized by high alkalinity (about 2 to 3 g L-1). Based on the type of bauxite are, the waste also contains some radioactive and hazardous elements. The high iron content in bauxite and red mud is also source of various environmental and social issues. Run out of red mud and dust emission are potential sources of ground and surface water severe pollution and public health issues. This review briefly describes the potential environmental and health risks associated with bauxite mining and its transformation processes into alumina. An outline of the available environmental management strategies is given with a focus on those associated with the bauxite residue.

Item Type:	Proceeding Paper (UNSPECIFIED)
Additional Information:	5595/65023
Uncontrolled Keywords:	Bauxite, Red mud, Bayer process, Sintering process, Pollution, Risk management.
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr. Ma'an Alkhatib
Date Deposited:	26 Sep 2018 16:15
Last Modified:	02 May 2024 14:21
URI:	http://irep.iium.edu.my/id/eprint/65023

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