Ion Exchange

{
  "id": "MLC-T-ENV-014944",
  "term": "Ion Exchange",
  "field": "Environment",
  "definition": "1. Reversible exchange of ions adsorbed on a mineral or synthetic polymer surface with ions in solution in contact with the surface. A chemical process used for recovery of uranium from solution by the interchange of ions between a solution and a solid, commonly a resin.\n\n2. A chemical process involving the absorption or desorption of various chemical ions in a solution onto a solid material, usually a plastic or resin. The process is used to separate and purify chemicals, such as fission products or to adjust the “hardness” of water (i.e., water softening).\n\n3. Physical-chemical process in which ions are swapped between a solution phase and a solid resin phase. Different resins are used to target different charged particles. Commonly used for softening (removing dissolved calcium and magnesium) and nitrate removal.",
  "subject": "Policy and guidance",
  "references": [
    "DOE Energy Information Administration Glossary",
    "DOE Glossary of Terms Related to CERCLA, EPCRA, PPA, RCRA and TSCA at http://homer.ornl.gov/sesa/environment/guidance/cercla/gloss97.pdf",
    "Effluent Limitations Guidelines (ELG) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/ion-exchange/"
}