Removal Performance and Mechanistic Insights into As(V) Transport in Natural Manganese Minerals.

Zhicheng Zhao, Huimei Shan, Song Wei, Zheying Li, Qingsheng Li

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In one paragraph

Article in Toxics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Zhicheng ZhaoGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.

Huimei ShanGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.ORCID 0000-0002-0885-7469

Song WeiGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.

Zheying LiGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.

Qingsheng LiGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541006, China.ORCID 0009-0005-1063-1513

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Arsenic contamination in polymetallic mining areas is closely linked to surrounding iron-rich manganese minerals. However, conclusive evidence remains limited regarding the retention and migration process of As(V) in naturally manganese-rich manganese ores (especially those with different manganese/iron mass ratios) under dynamic flow conditions. This study investigated As(V) adsorption and transport by four natural manganese minerals (FM1-FM4) through batch/column experiments, characterization, and numerical modeling. Their Mn/Fe mass ratios were 22.7 for FM1, 4.2 for FM2, 3.7 for FM3, and 16.4 for FM4. Batch experiments showed that As(V) adsorption on FM1-FM3 was better described by the Freundlich model, indicating heterogeneous adsorption behavior. Under the tested experimental conditions, the apparent Langmuir

Indexed as

adsorption and migrationarsenicnatural manganese mineralsTwo-Site Kinetic Adsorption Model (TSKAM)

Identifiers

PMID42043167

DOI10.3390/toxics14040340

PMCPMC13120385

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