Distribution, Migration, and Conversion of Groundwater Manganese and Soil Manganese in a Chemical Cluster

Abstract

Abstract Taking a chemical cluster as the study area, this paper investigated the spatial distribution of manganese in the groundwater and soil environments and analyzed the changes of manganese content in groundwater over time. The study results show that: the manganese content in groundwater of the cluster is relatively stable over time; however, it shows the charactertistics of aggregation and concentration in scattered spots and local areas on a plane surface; the content of manganese in groundwater is highly correlated with that in the soil enviornment; in groundwater, manganese diffuses along water flows, resulting in a pollution plume, while in the soil environment, it migrates vertically from the shallow soil layer to the deep soil layer and then to the groundwater or directly goes to the groundwater due to the leaching of rainwater; at the same time, the humind environment of the culster, a low pH value, intense reduction actions, and the increase of Mn2+ content all make the manganese pollution worse.