Effects of Dissolved Organic Matter on the Release of Soluble Phosphorus and Fluoride Ion from Phosphate Ore

Unreasonable storage of phosphate ore is becoming an important pathway causing pollution in the surrounding aquatic environment. However, there little research on influence dissolved organic matter (DOM) water fate ore. Here, we collected ores from two mines along coast Tanglang River and studied effects DOM concentrations pH release soluble active phosphorus (SRP) fluoride ion (F−) using humic acid (HA) as representative DOM. Based analysis ZP, FTIR, XPS, SEM, mechanism HA was revealed. The results showed that efficiently promoted SRP F− With decreasing pH, P increased both solutions general. beneficial ascribed to introduction oxygen-containing functional groups by HA, which altered surface properties enhanced dispersion stability These findings provided new insights into behavior ore, helpful promoting control management strategy