Biofilter

{
  "id": "MLC-T-ENV-003172",
  "term": "Biofilter",
  "field": "Environment",
  "definition": "Enclosed control system such as a tank or series of tanks with a fixed roof that contact emissions with a solid media (such as bark) and use microbiological activity to transform organic pollutants in a process exhaust stream to innocuous compounds such as carbon dioxide, water, and inorganic salts. Wastewater treatment systems such as aeration lagoons or activated sludge systems are not considered to be biofilters. [40 CFR 63.2292 (CFR 2013)]",
  "references": [
    "40 CFR 63.2550 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/biofilter/"
}