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METHOD OF DECOLORIZING PAPER MILL EFFLUENT LIQUID

  • US 3,833,464 A
  • Filed: 02/16/1973
  • Issued: 09/03/1974
  • Est. Priority Date: 02/16/1973
  • Status: Expired due to Term
First Claim
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2. pressurizing said liquid to greater than atmospheric in the presence of a fluid including an excess of carbon dioxide, CO2, whereby said calcium carbonate, CaCO3, is substantially converted to soluble calcium bicarbonate, CaHCO3, and

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