Red Mud: Production, Composition and Impact

Kay Richard (Editor)

Series: Waste and Waste Management
BISAC: TEC010020

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Red mud is a waste material derived as residual from the Bayer process by the caustic digestion of crushed bauxite at elevated temperature. It is chemically characterized by the presence of Si, Al, Fe, Ca, Ti as well as an array of minor constituents such as Na, K, Cr, Ni, Mn, Cu, Zn and Pb. Red Mud: Production, Composition and Impact begins by giving a brief review of laboratories, in situ and remote sensing techniques applied to characterize the RM waste materials focusing on both standard and novel methods.

Next, the authors deal with composite materials based on different kind of polymers and red mud, and attempts to summarize the literature about these kind of materials. A great deal of attention is also paid to the possible applications of these new alternatives to classical materials.
The main characteristics of several red muds from own studies and the scientific literature are described, and relevant examples of chemical composition variability of red muds emphasize the variability in chemical and mineralogical composition of red muds.

This compilation systematically presents the updated scientific literature data regarding the applications of red mud waste in environmental protection. The authors present aspects related to red mud composition and the types of treatments applied to red mud to enhance its adsorption or catalytic performances. The performance of red mud-adsorbents in the removal of inorganic anions, heavy metals and organic compounds from wastewaters, and gaseous effluents is also discussed.

The final chapter reviews the existing technological solutions to valorize the red mud in order to develop other engineering activities. The aim is to provide information on the enormous bauxite and alumina industry in Guinea and to appeal for a global approach to tackle the management of red mud; to assist in economic and technical planning of the issue by scientists, industry-leaders, high level policy makers.

Preface

Chapter 1. Red Mud: A Brief Review on Conventional and Unconventional Techniques Used to Characterize This Waste Material
(Claudia Belviso and Simone Pascucci, Istituto di Metodologie per l’Analisi Ambientale – CNR, Tito Scalo (PZ), Italy, and others)

Chapter 2. Red Mud Polymer Composites
(Teodor Sandu, Anamaria Zaharia, Andrei Sarbu, Rodica Zavoianu and Eleonora Luminita Mara, National Research- Development Institute for Chemistry and Petrochemistry (INCDCP- ICECHIM), Splaiul Independentei, Bucharest, Romania, and others)

Chapter 3. Influence of Bauxite Ore on Chemical and Mineralogical Composition Variability of Red Mud
(L. Pérez-Villarejo, D. Eliche-Quesada, B. Carrasco-Hurtado, P.J. Sánchez-Soto, S. Martínez-Martínez and G. N. Angelopoulos, Department of Chemical, Environmental and Materials Engineering. University of Jaén, Campus Las Lagunillas, Jaén, Spain, and others)

Chapter 4. Environmental Protection Applications of Red Mud
(Rodica Zăvoianu, Anca Cruceanu, Octavian D. Pavel, Andrei Sârbu, Teodor Sandu and Luminiţa Mara, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Bucharest, Romania, and others)

Chapter 5. Bauxite Potential of Guinea and the Management Prospects of the Red Mud as the Main Byproduct Resulting from Its Conversion into Alumina
(Sékou Traoré, D. Lanciné Traoré, Sine Diakite and Sekou Amadou Condé, Department of Chemical Engineering, University of Conakry Polytechnic Institute, Conakry, Guinea)

Index

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