Black liquor

{
  "id": "MLC-T-ENV-003382",
  "term": "Black liquor",
  "field": "Environment",
  "term_source": "Black Liquor",
  "definition": "1. A by product of the paper production process, alkaline spent liquor, that can be used as a source of energy. Alkaline spent liquor is removed from the digesters in the process of chemically pulping wood. After evaporation, the residual \"black\" liquor is burned as a fuel in a recovery furnace that permits the recovery of certain basic chemicals.\n\n2. Spent cooking liquor that has been separated from the pulp produced by the kraft, soda, or semichemical pulping process.",
  "subject": "Environmental events",
  "references": [
    "DOE Energy Information Administration Glossary",
    "40 CFR 63.861 (CFR 2013); 40 CFR 63.441 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/black-liquor/"
}