Biochar MMT ZnAl LDH composite materials derived from solid waste for heavy metal removal in artificial acid mine drainage.

ABSTRACT: This study investigates the synthesis and performance of a biochar-based composite, integrating montmorillonite (MMT) and ZnAl layered double hydroxide (LDH), for the removal of Fe and Mn from acid mine drainage. The biochar_MMT_ZnAl LDH composite, synthesized from solid waste materials, was characterized using BET, XRD, FTIR, TGA, and SEM-EDS analyses. The material demonstrated a surface area of 117.54 m²/g and a pore volume of 0.21 cm³/g, significantly surpassing non-composite biochar with a surface area of 14.81 m²/g. The batch sorption experiment showed rapid adsorption kinetics, achieving 99% Mn removal within 7 min at 0.5 g adsorbent dosage, reducing Mn concentration from 100 mg/L to 0.07 mg/L. For Fe, an 87% reduction was achieved after 400 min using

SUBMITTER: Wibowo YG 

PROVIDER: S-EPMC12037883 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature