Color removal from kraft mill aqueous effluents

摘要: THIS INVENTION RELATES TO AN APPARATUS SYSTEM AND A CONTINUOUS METHOD OF REMOVING DISPOSING COLOR BODIES IN AQUEOUS EFFLUENTS FROM KRAFT PULP MANUFACTURING OPERATION CONTAINING SUCH COMPRISING ADJUSTING THE PH SAID ABOUT NEUTRALITY 9, SUBJECTING EFFLUENT ULTRAFILTRATION FORM PERMEATE RETENATE SUBSTANTIALLY ALL SOLIDS CONCENTRATION AT LEAST 15%, THERMALLY OXIDIZING TEMPERATURE FOR TIME SUFFICIENT OXIDIZE COLORLESS INORGANIC SALTS GASES WHICH CAN BE SAFELY DISPOSED OF.