Method for treating liquids with activated carbon

Claim 1

THE METHOD OF TREATING WATER WITH ACTIVATED CARBON WHICH COMPRISES MIXING TOGETHER A POWDERED HIGH DENSITY ACTIVATED LIGNITE CARBON AND WATER TO FORM A RELATIVELY CONCENTRATED SLURRY OF THE CARBON IN WATER, GENTLY AGITATION AND CIRCULATING THE SLURY UNTIL THE CARBON HAS AGGLOMERATED INTO PARTICLES OF APPRECIABLE SIZE, INTRODUCING THE AGGLOMERATED SLURRY AND WATER TO BE TREATED INTO A SEPARATING ZONE, PERMITTING THE AGGLOMERATES TO SETTLE BY GRAVITY IN THE SEPARATING ZONE FORMING A SUPERNATANT RELATIVELY CARBON-FREE WATER LAYER AND A LOWER LAYER OF DENSER CARBON AGGLOMERATES SUSPENDED IN WATER, CONTINUOUSLY INTRODUCING WATER, TO BE TREATED INTO SAID LOWER LAYER IN THE SEPARATING ZONE AT A RATE TO KEEP THE CARBON AGGLOMERATES IN HYDRAULIC SUSPENSION WITHOUT SUBSTANTIALLY CARRYING THEM INTO THE SUPERANATANT LAYER, CONTINUOUSLY REMOVING WATER FROM SAID SUPERNATANT LAYER, INTERMITTENTLY ADDING FRESH AGGLOMERATED RELATIVELY CONCENTRATED SLURRY OF POWDERED HIGH DENSITY ACTIVATED LIGNITE CARBON IN WATER TO SAID LOWER LAYER OF THE DENSER CARBON AGGLOMERATES IN THE SEPARATING ZONE, THE RATE OF INTERMITTENT CARBON ADDITION BEING CORRELATED WITH THE RATE OF INTRODUCTION OF WATER TO BE TREATED TO PROVIDE AN OVERALL DOSAGE OF ABOUT 2 TO 10 PARTS OF CARBON PER MILLION PARTS OF WATER, AND REMOVING SPENT CARBON FROM SAID LOWER LAYER IN THE SEPARATING ZONE.

Claim 2

THE METHOD OF TREATING WATER WITH ACTIVATED CARBON WHICH COMPRISES MIXING TOGETHER A POWDERED HIGH DENSITY ACTIVATED LIGNITE CARBON AND WATER TO FORM A RELATIVELY CONCENTRATED SLURRY OF THE CARBON IN WATER, GENTLY AGITATION AND CIRCULATING THE SLURY UNTIL THE CARBON HAS AGGLOMERATED INTO PARTICLES OF APPRECIABLE SIZE, INTRODUCING THE AGGLOMERATED SLURRY AND WATER TO BE TREATED INTO A SEPARATING ZONE, PERMITTING THE AGGLOMERATES TO SETTLE BY GRAVITY IN THE SEPARATING ZONE FORMING A SUPERNATANT RELATIVELY CARBON-FREE WATER LAYER AND A LOWER LAYER OF DENSER CARBON AGGLOMERATES SUSPENDED IN WATER, CONTINUOUSLY INTRODUCING WATER, TO BE TREATED INTO SAID LOWER LAYER IN THE SEPARATING ZONE AT A RATE TO KEEP THE CARBON AGGLOMERATES IN HYDRAULIC SUSPENSION WITHOUT SUBSTANTIALLY CARRYING THEM INTO THE SUPERANATANT LAYER, CONTINUOUSLY REMOVING WATER FROM SAID SUPERNATANT LAYER, INTERMITTENTLY ADDING FRESH AGGLOMERATED RELATIVELY CONCENTRATED SLURRY OF POWDERED HIGH DENSITY ACTIVATED LIGNITE CARBON IN WATER TO SAID LOWER LAYER OF THE DENSER CARBON AGGLOMERATES IN THE SEPARATING ZONE, THE RATE OF INTERMITTENT CARBON ADDITION BEING CORRELATED WITH THE RATE OF INTRODUCTION OF WATER TO BE TREATED TO PROVIDE AN OVERALL DOSAGE OF ABOUT 2 TO 10 PARTS OF CARBON PER MILLION PARTS OF WATER, AND REMOVING SPENT CARBON FROM SAID LOWER LAYER IN THE SEPARATING ZONE.