A Mathematical Model Development for Microbial Arsenic Transformation and Transport

  • Lim, Mi-Sun (School of Earth and Environmental Sciences, Seoul National University) ;
  • Yeo, In-Wook (School of Earth and Environmental Sciences, Chonnam National University) ;
  • Lee, Kang-Kun (School of Earth and Environmental Sciences, Seoul National University)
  • Published : 2004.04.01

Abstract

Arsenic is a toxic and carcinogenic metalloid, whose sources in nature include mineral dissolution and volcanic eruption. Abandoned mines and hazardous waste disposal sites are another major source of arsenic contamination of soil and aquatic systems. To predict concentrations of the toxic inorganic arsenic in aqueous phase. the biogeochemical redox processes and transport behavior need to be studied together and be coupled in a reactive transport model. A new reaction module describing the fate and transport of inorganic arsenic species (As(II)), dissolved oxygen, nitrate, ferrous iron, sulfate, and dissolved organic carbon are developed and incorporated into the RT3D code.