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The research aims to develop a novel method to activate red mud for better utilization and resource recovery.

March 3, 2026Open Access

Stepwise Recycling of Red Mud Through Electrochemical Activation for Enhanced Cementitious Performance and Magnetically Separable Iron Recovery

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Demonstrates enhanced cementitious performance and efficient iron recovery in red mud, indicating potential for sustainable materials.

The research aims to develop a novel method to activate red mud for better utilization and resource recovery.
Conducted electrochemical treatment experiments in alkaline, neutral, and acidic electrolytes.
Analyzed the electrochemical activation process and its effects on red mud microstructure.
Evaluated the cementitious properties through mechanical testing and hydration product characterization.
Achieved an average Faradaic efficiency exceeding 80% in alkaline conditions.
Enhanced the cementitious activity of treated red mud, with compressive strength reaching up to 69 MPa.
Generated key hydration products like C-S-H gel and ettringite through the activation process.

Tang et al. (2026) studied this question.

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