Pulp Washing System

{
  "id": "MLC-T-ENV-022775",
  "term": "Pulp Washing System",
  "field": "Environment",
  "definition": "All equipment used to wash pulp and separate spent cooking chemicals following the digester system and prior to the bleaching system, oxygen delignification system, or paper machine system (at unbleached mills). The pulp washing system equipment includes vacuum drum washers, diffusion washers, rotary pressure washers, horizontal belt filters, intermediate stock chests, and their associated vacuum pumps, filtrate tanks, foam breakers or tanks, and any other equipment serving the same function as those previously listed. The pulp washing system does not include deckers, screens, knotters, stock chests, or pulp storage tanks following the last stage of pulp washing.",
  "references": [
    "40 CFR 63.441 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/pulp-washing-system/"
}