Evaluation of Leaching Characteristics of Heavy Metal Ions from Red Mud–Graphite Tailings DOI Creative Commons
Kangli Li, Xiaolei Lu, Congcong Jiang

и другие.

Toxics, Год журнала: 2025, Номер 13(3), С. 211 - 211

Опубликована: Март 14, 2025

The rapid growth of aluminum and graphite industries has generated substantial stockpiles red mud tailings, which pose environmental risks due to their high heavy metal content potential for soil water contamination. This study investigated the leaching behavior metals from these materials post-stabilization using cement a sulfonated oil-based ion curing agent, thereby evaluating suitability safe reuse. Semi-dynamic experiments were employed measure release, supplemented by kinetic modeling discern key mechanisms. findings indicated that concentrations in leachates consistently below regulatory standards, with dynamics influenced dual mechanisms: diffusion ions surface chemical reactions. A coefficient-based analysis further suggested low leachability indices all metals, confirming effective immobilization. These results suggest agent-stabilized mud–graphite tailing composites reduce possess characteristics favorable resource recovery, thus supporting sustainable use industrial applications.

Язык: Английский

Activated nickel tailings for remediation of arsenic-contaminated soils: Tailings activation, leaching toxicity and passivation mechanisms DOI

Xuquan Huang,

Jun Tu, Haojie Wang

и другие.

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115912 - 115912

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

Evaluation of Leaching Characteristics of Heavy Metal Ions from Red Mud–Graphite Tailings DOI Creative Commons
Kangli Li, Xiaolei Lu, Congcong Jiang

и другие.

Toxics, Год журнала: 2025, Номер 13(3), С. 211 - 211

Опубликована: Март 14, 2025

The rapid growth of aluminum and graphite industries has generated substantial stockpiles red mud tailings, which pose environmental risks due to their high heavy metal content potential for soil water contamination. This study investigated the leaching behavior metals from these materials post-stabilization using cement a sulfonated oil-based ion curing agent, thereby evaluating suitability safe reuse. Semi-dynamic experiments were employed measure release, supplemented by kinetic modeling discern key mechanisms. findings indicated that concentrations in leachates consistently below regulatory standards, with dynamics influenced dual mechanisms: diffusion ions surface chemical reactions. A coefficient-based analysis further suggested low leachability indices all metals, confirming effective immobilization. These results suggest agent-stabilized mud–graphite tailing composites reduce possess characteristics favorable resource recovery, thus supporting sustainable use industrial applications.

Язык: Английский

Процитировано

0