Enhanced biological treatment system

{
  "id": "MLC-T-ENV-009659",
  "term": "Enhanced biological treatment system",
  "field": "Environment",
  "term_source": "Enhanced Biological Treatment System",
  "definition": "Aerated, thoroughly mixed treatment unit(s) that contains biomass suspended in water followed by a clarifier that removes biomass from the treated water and recycles recovered biomass to the aeration unit. The mixed liquor volatile suspended solids (biomass) is greater than 1 kilogram per cubic meter throughout each aeration unit. The biomass is suspended and aerated in the water of the aeration unit(s) by either submerged air flow or mechanical agitation. A thoroughly mixed treatment unit is a unit that is designed and operated to approach or achieve uniform biomass distribution and organic compound concentration throughout the aeration unit by quickly dispersing the recycled biomass and the wastewater entering the unit.",
  "subject": "Built environments",
  "references": [
    "40 CFR 63.1251 (CFR 2013); 40 CFR 63.101 (CFR 2024)"
  ],
  "url": "https://mlchart.com/terminology/environment/enhanced-biological-treatment-system/"
}