Slow sand filtration

{
  "id": "MLC-T-ENV-025756",
  "term": "Slow sand filtration",
  "field": "Environment",
  "term_source": "Slow Sand Filtration",
  "definition": "1. A process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 m/h) resulting in substantial particulate removal by physical and biological mechanisms.\n\n2. Passage of raw water through a bed of sand at low velocity, resulting in substantial removal of chemical and biological contaminants.\n\n3. Process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 m/h) resulting in substantial particulate removal by physical and biological mechanisms.",
  "subject": "Water",
  "references": [
    "Drinking Water Technical & Legal Terms",
    "Terms of Environment",
    "40 CFR 141.2 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/slow-sand-filtration/"
}