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

Water, Journal Year: 2025, Volume and Issue: 17(7), P. 1058 - 1058

Published: April 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.

Language: Английский

Groundwater irrigation induced variations in DOM fluorescence and arsenic mobility

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 135229 - 135229

Published: July 16, 2024

Language: Английский

Impact of long-term irrigation practices on distribution and speciation of arsenic in agricultural soil

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 283, P. 116825 - 116825

Published: Aug. 1, 2024

Language: Английский