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Neutralization of Red Mud with Organic Acids and Assessment of Their Usefulness in Abating pH Rebound
Publisher: ASCE
Abstract: This study provides a practical and efficient alternative to neutralize the exorbitant pH of red mud (>11.5) followed by long-term sustenance of the neutralization. The usefulness of organic acids (oxalic acid and citric ...
Potential of Citric Acid for Treatment of Extremely Alkaline Bauxite Residue: Effect on Geotechnical and Geoenvironmental Properties
Publisher: ASCE
Abstract: In this paper, citric acid (CA) is chosen as an additive for the treatment of bauxite residue, a by-product generated by the aluminum industry. The potential of CA to improve geotechnical (e.g., compaction, strength, ...
Geoenvironmental Characterization of Bauxite Residue Ameliorated with Different Amendments
Publisher: American Society of Civil Engineers
Abstract: In bauxite residue (BR), the abatement and rebound of pH when ameliorated with different amendments have been reported as prime concerns. In addition, to the best of the authors’ knowledge, no research has focused on the ...
Performance of Lime Stabilization on Extremely Alkaline Red Mud Waste under Acidic Environment
Publisher: American Society of Civil Engineers
Abstract: Excessive pH (>11) and inconsistent engineering properties because of the chemicomineralogical composition of red mud warrant devising an alternate approach to render it more environmentally benign. In this study, the ...