Irrigation Promotes Arsenic Mobilization via Goethite: Insight from the Perspective of the Solid–Liquid Interface Interaction Process

Water, Год журнала: 2025, Номер 17(7), С. 1058 - 1058

Опубликована: Апрель 3, 2025

Dramatic changes in the farmland soil–groundwater environment caused by irrigation affects geochemical behavior of arsenic (As). However, mechanism As mobilization during interactions remains unclear. This study explored effects phosphate (PO43−), fulvic acid (FA), and oxic/anoxic conditions on through batch column experiments. The results indicated that a saline–alkali involvement PO43−/FA suppressed adsorption capacity goethite for As(III) water PO43− had primary effect. An increase concentration further increased its inhibition. Notably, did not affect TAs presence high concentrations PO43−/FA. In soil environment, periodic led to regular fluctuations content pore water. addition resulted higher short term. contrast, FA greatly long-term mobility As. highlighted amplifies systems, particularly environments, exacerbates this effect, posing risks agricultural safety. systematic management practices is recommended mitigate these risks.

Язык: Английский

Runoff seasonal fluctuations on spatiotemporal accumulation and mobility of arsenic and thallium in mine stream sediments

Journal of Hazardous Materials, Год журнала: 2025, Номер 494, С. 138749 - 138749

Опубликована: Май 27, 2025

Язык: Английский