Xiaofei Li

TL;DR: Future research should focus on transformation chemistry and its associated mechanisms and for the development of a clear and economic process to reduce alkalinity and soda in bauxite residue.

TL;DR: SEM images suggest that mineral acid transformations promote macro-aggregate formation, and the positive promotion of citric acid, confirming the removal or reduction in soluble and exchangeable Na.

TL;DR: In this paper, the authors focus on the origin and transformation of alkalinity in bauxite residues using typical industrial waste and propose key research directions with an emphasis on alkaline regulation by industrial waste, whilst also providing a scientific reference point for their potential use as amendments to enhance soil formation and establish vegetation on Bauxite residue disposal areas.

TL;DR: Climate, stacking time, and biological factors appear to improve the structure of bauxite residue, and natural processes decreased pH, electrical conductivity, and exchangeable sodium percentage, while exchangeable Ca and Mg were significantly beneficial to aggregation of water-stable aggregates.

TL;DR: It was concluded that natural processes of regeneration, stabilization, and attenuation have improved the hostile physical environment of bauxite residue allowing plant establishment to take place.