Chromium Drag-out Destruction

{
  "id": "MLC-T-ENV-004971",
  "term": "Chromium Drag-out Destruction",
  "field": "Environment",
  "definition": "Unit operation performed following chromium-bearing operations to reduce hexavalent chromium that is “dragged out” of the process bath. Parts are dipped in a solution of a chromium-reducing chemical (e.g., sodium metabisulfite) to prevent the hexavalent chromium from contaminating subsequent process baths. This operation typically is performed in a stagnant drag-out rinse tank that contains concentrated chromium-bearing wastewater.",
  "references": [
    "40 CFR 438 Appendix C (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/chromium-drag-out-destruction/"
}