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Biogenic iron mineral formation and the fate of arsenic driven by its coupling with ferrous iron in acid mine drainage environment.
J Hazard Mater
December 2024
College of Resources and Environment, Shanxi Agricultural University, Taigu, Shanxi 030801, China. Electronic address:
Acid mine drainage (AMD) containing arsenic produced during coal mining is a global environmental problem. However, the coupled driving process of the key element Fe and the associated element As in the AMD environment has received little attention. Therefore, in this study, we investigated the A.
View Article and Find Full Text PDFOptimizing the dual role of biochar for phosphorus availability and arsenic immobilization in soils.
Sci Total Environ
December 2024
South China Agricultural University, Guangzhou 510642, China. Electronic address:
Soil Phosphorus (P) fixation and Arsenic (As) contamination pose significant challenges to agriculture and environmental health. Biochar has emerged as a promising soil amendment capable of enhancing P availability while immobilizing As. This review explored the mechanisms by which biochar influences P dynamics and As sequestration.
View Article and Find Full Text PDFPorphyria Cutanea Tarda in a Patient With Hereditary Hemochromatosis: A Complex Overlap Disorder.
Cureus
November 2024
Division of Hematology and Oncology, Sidney Health Center Cancer Care, Sidney, USA.
We present a case of a 34-year-old woman with a 12-week history of blistering skin lesions, ultimately diagnosed with co-existing porphyria cutanea tarda (PCT) and hereditary hemochromatosis (HH) due to a homozygous C282Y mutation. The patient's discovered genetic predisposition to iron overload played a key role in the development of clinically symptomatic PCT. Treatment with serial therapeutic phlebotomy was started, dramatically improving her symptomatic cutaneous disease, iron indices, and liver function tests.
View Article and Find Full Text PDFAntimony-bearing schwertmannite transformation to goethite: A driver of antimony mobilization in acid mine drainage.
J Hazard Mater
December 2024
Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia. Electronic address:
Antimony(V) mobility in acid mine drainage (AMD) is often controlled by sorption and coprecipitation with schwertmannite - a poorly-ordered Fe(III) oxyhydroxysulfate mineral. However, due to its metastable nature, schwertmannite transforms over time to more thermodynamically stable Fe(III) phases, such as goethite. This study examines how transformation of Sb(V)-bearing schwertmannite to goethite impacts Sb(V) mobility, while also assessing the role that Sb(V) may play in stabilizing schwertmannite against such transformation.
View Article and Find Full Text PDFIron-loaded activated carbon cloth as CDI electrode material for selective recovery of phosphate.
Environ Sci Pollut Res Int
November 2024
Department of Chemistry & Bioscience, Aalborg University, Niels Bohrs Vej 8, 6700, Esbjerg, Denmark.
This study investigated the efficacy of oxidised iron-loaded activated carbon cloth (Fe-ACC) for selective recovery of phosphorous. The capacitive deionisation (CDI) technology was employed, for rapid removal of phosphate, with the aim of reducing the reliance on high alkalinity environment for the regeneration of Fe-ACC electrode. Multiple experimental parameters, including applied potential, pH, and co-existing ions, were studied.
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