Anaerobic Microbial Transformations in Subsurface Environments: Highlights

摘要

Anaerobic microorganisms under appropriate conditions affect trace metal dissolution and mobilization or immobilization in the subsurface environments by one or more of the following processes: (1) changes in pH and Eh (which affect the valence or ionic state of the metals and enhance their mobility in the subsurface environment by retarding the subsoil binding characteristics); (2) chelation or production of specific sequestering agents (solubilization and leaching of certain elements by microbial metabolites or decomposition products); and (3) bioaccumulation and release of metals due to remineralization elsewhere in the environment. (ERA citation 11:032856)