Characteristics of Modified Complex of Red Mud and Phosphogypsum and Its Soil Substrate Utilization DOI Open Access
Benli Liu,

Zuyong Chen,

Fang Liu

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 972 - 972

Published: March 25, 2025

The increasing generation of industrial solid wastes, such as red mud and phosphogypsum, poses significant environmental challenges due to their complex chemical compositions low utilization rates. This study aims develop an innovative composite material by combining RM PG, modified with ferric chloride (FeCl3) sodium silicate (Na2SiO3), address risks enhance potential for soil ecological remediation. modification mechanisms immobilization toxic ions were investigated through leaching behavior analysis advanced microscopic techniques, including BET XRD. Under the optimal ratio (RM:PG = 7:3), exhibited excellent performance, stable pH (8.03), electrical conductivity (4.89 mS/cm), significantly reduced concentrations phosphate (PO43−: 0.36 mg/L) fluoride (F−: 1.34 mg/L), achieving upgrade from Class II I slag. process increased specific surface area, optimized pore structure, enhanced activity structural stability. Pot experiments demonstrated that supported normal plant growth, leachate meeting Grade wastewater discharge standards. not only provides a sustainable approach but also offers valuable insights into development eco-friendly materials remediation restoration, benefiting both scientific community management practices.

Language: Английский

Characteristics of Modified Complex of Red Mud and Phosphogypsum and Its Soil Substrate Utilization DOI Open Access
Benli Liu,

Zuyong Chen,

Fang Liu

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 972 - 972

Published: March 25, 2025

The increasing generation of industrial solid wastes, such as red mud and phosphogypsum, poses significant environmental challenges due to their complex chemical compositions low utilization rates. This study aims develop an innovative composite material by combining RM PG, modified with ferric chloride (FeCl3) sodium silicate (Na2SiO3), address risks enhance potential for soil ecological remediation. modification mechanisms immobilization toxic ions were investigated through leaching behavior analysis advanced microscopic techniques, including BET XRD. Under the optimal ratio (RM:PG = 7:3), exhibited excellent performance, stable pH (8.03), electrical conductivity (4.89 mS/cm), significantly reduced concentrations phosphate (PO43−: 0.36 mg/L) fluoride (F−: 1.34 mg/L), achieving upgrade from Class II I slag. process increased specific surface area, optimized pore structure, enhanced activity structural stability. Pot experiments demonstrated that supported normal plant growth, leachate meeting Grade wastewater discharge standards. not only provides a sustainable approach but also offers valuable insights into development eco-friendly materials remediation restoration, benefiting both scientific community management practices.

Language: Английский

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