Mechanisms of arsenic and antimony co-sorption onto jarosite: an x-ray absorption spectroscopic study

N Karimian, SG Johnston, E Tavakkoli… - … science & technology, 2023 - ACS Publications
Jarosite, a common mineral in acidic sulfur-rich environments, can strongly sorb both As (V)
and Sb (V). However, little is known regarding the mechanisms that control simultaneous co …

Potential mobilization of water-dispersible colloidal thallium and arsenic in contaminated soils and sediments in mining areas of southwest China

Y Du, L Shi, X Li, J Liu, R Ying, P Hu, L Wu… - Journal of Hazardous …, 2024 - Elsevier
Water-dispersible colloids (WDCs) are vital for trace element migration, but there is limited
information about the abundance, size distribution and elemental composition of WDC …

Iron colloidal transport mechanisms and sequestration of As, Ni, and Cu along AMD-induced environmental gradients

L Fan, T Zhu, Y Yang, T Han, Z Qiao, X Huang… - Science of The Total …, 2023 - Elsevier
Colloids are common in mine waters and their chemistry and interactions are critical aspects
of metal (loid) s cycling. Previous studies mostly focus on the colloidal transport of metal …

Enhancing Coimmobilization Capacity of Schwertmannite for Arsenic and Cadmium through pH Elevation after Chemical Oxidation

X Wang, L Wang, J Fu, Y Zhang, Y Dong… - ACS ES&T …, 2024 - ACS Publications
Schwertmannite (Sch) is a promising environmental functional material for remediation of
arsenic pollution, particularly arsenite [As (III)], due to its unique adsorption mechanism …

Photochemical Origins of Iron Flocculation in Acid Mine Drainage

H Ma, S Zhu, Z Huang, W Zheng, C Liu… - Environmental …, 2024 - ACS Publications
Acid mine drainage (AMD) raises a global environmental concern impacting the iron cycle.
Although the formation of Fe (III) minerals in AMD-impacted waters has previously been …

[HTML][HTML] Antimony-bearing schwertmannite transformation to goethite: A driver of antimony mobilization in acid mine drainage

M Rastegari, N Karimian, SG Johnston… - Journal of hazardous …, 2024 - Elsevier
Antimony (V) mobility in acid mine drainage (AMD) is often controlled by sorption and
coprecipitation with schwertmannite–a poorly-ordered Fe (III) oxyhydroxysulfate mineral …

[HTML][HTML] A Novel Surface Passivation Method of Pyrite within Rocks in Underwater Environments to Mitigate Acid Mine Drainage at Its Source

L Fan, T Han, X Huang, Y Yang, T Zhu, W Zhai… - Minerals, 2024 - mdpi.com
Mitigating acid mine drainage (AMD) at its source, specifically within rocks containing pyrite
in underwater environments, poses a significant environmental challenge worldwide …

Extreme iron cycling in a coastal lake-lagoon system driven by interactions between climate and entrance management

SG Johnston, T Aaso, DT Maher, ED Burton… - Science of the Total …, 2024 - Elsevier
Intermittently closed and open coastal lakes and lagoons (ICOLLs) are ecologically
important and hydrologically sensitive estuarine systems. We explore how extreme drought …

FeSO4+ drives the H2O-losing transformation of iron (III)-phosphate-bearing secondary minerals with significant effect on immobilization of arsenic in AMD …

X Xia, Y Zhou, BF Wang, Z Nie, J Xia - Science of The Total Environment, 2025 - Elsevier
Due to its broad distribution and high affinity for Fe 3+, phosphate is always involved in iron
(III)-bearing secondary minerals (ISMs) formation, but its effect on the ISMs formation in acid …

Manganese promotes stability of natural arsenic sinks in a groundwater system with arsenic-immobilization minerals: Natural remediation mechanism and …

X Zhao, X Xie, Z Xie, Z Zhao, R Qiu, X Zhao… - Journal of …, 2024 - Elsevier
Abstract Arsenic (As)-immobilizing iron (Fe)–manganese (Mn) minerals (AFMM) represent
potential As sinks in As-enriched groundwater environments. The process and mechanisms …