Simultaneous filtering for removal of taste,odor and turbidity

Claim 1

THE METHOD OF OPERATING A PLURALITY OF WATER FILTER ELEMENTS HAVING PRESSURE VESSELS CONTAINING GRANULATED CARBON TO OBTAIN CONTINUOUS FILTERING OF WATER UNDER PRESSURE WITHOUT INTERRUPTIN OF FILTERING FLOW COMPRISING: (A) CONFINING A MASS OF ACTIVATED CARBON IN THE PRESSURE VESSELS; (B) FLOWING RAW WATER THROUGH AT LEAST ONE OF SAID FILTER ELEMENTS; (C) INDICATING THE PRESSURE DROP ACROSS EACH FILTER ELEMENT; (D) STOPPING FLOW THROUGH ANY ONE OF SAID FILTER ELEMENTS WHEREIN THE PRESSURE DROP EXCEEDS A PRESELECTED VALUE; (E) BACKWASHING IN PLACE WITH CLEAN WATER ANY SUCH FILTER ELEMENT INDICATING EXCESSIVE PRESSURE DROP UNTIL THE BACKWASH WATER IS CLEAR; (F) RESTORING RAW WATER FLOW THROUGH THE BACKWASHED FILTER ELEMENTS; (G) HYDRAULICALLY FLOWING TO A SCRUBBER THE GRANULAR CARBON OF ANY FILTER ELEMENT WHEREIN BACKWASHING FAILS TO RESTORE THE PRESSURE DROP TO THAT OF CLEAN CARBON; (H) SCRUBBING SAID HYDRAULICALLY FLOWED CARBON AND HYDRAULICALLY RETURNING IT TO THE FILTER ELEMENT; (I) RESTORING RAW WATER FLOW THROUGH THE FILTER ELEMENT HAVING SCRUBBED CARBON; (J) TESTING THE FILTERED WATER FOR TASTE AND ODOR REMOVAL; (K) HYDRAULICALLY FLOWING TO A REACTIVATOR THE GRANULAR CARBON OF ANY FILTER WHICH HAS LOST ITS ABILITY TO SUBSTANTIALLY REMOVES TASTE AND ODOR; (L) REACTIVATING SAID CARBON TO RESTORE ITS ABILITY TO REMOVE TASTE AND ODOR; (M) HYDRAULICALLY RETURNING THE REACTIVATED CARBON TO THE FILTER ELEMENT; AND (N) RESTORING RAW WATER FLOW THROUGY THE FILTER ELEMENT HAVING THE REACTIVATED CARBON.

Claim 2

THE METHOD OF OPERATING A PLURALITY OF WATER FILTER ELEMENTS HAVING PRESSURE VESSELS CONTAINING GRANULATED CARBON TO OBTAIN CONTINUOUS FILTERING OF WATER UNDER PRESSURE WITHOUT INTERRUPTIN OF FILTERING FLOW COMPRISING: (A) CONFINING A MASS OF ACTIVATED CARBON IN THE PRESSURE VESSELS; (B) FLOWING RAW WATER THROUGH AT LEAST ONE OF SAID FILTER ELEMENTS; (C) INDICATING THE PRESSURE DROP ACROSS EACH FILTER ELEMENT; (D) STOPPING FLOW THROUGH ANY ONE OF SAID FILTER ELEMENTS WHEREIN THE PRESSURE DROP EXCEEDS A PRESELECTED VALUE; (E) BACKWASHING IN PLACE WITH CLEAN WATER ANY SUCH FILTER ELEMENT INDICATING EXCESSIVE PRESSURE DROP UNTIL THE BACKWASH WATER IS CLEAR; (F) RESTORING RAW WATER FLOW THROUGH THE BACKWASHED FILTER ELEMENTS; (G) HYDRAULICALLY FLOWING TO A SCRUBBER THE GRANULAR CARBON OF ANY FILTER ELEMENT WHEREIN BACKWASHING FAILS TO RESTORE THE PRESSURE DROP TO THAT OF CLEAN CARBON; (H) SCRUBBING SAID HYDRAULICALLY FLOWED CARBON AND HYDRAULICALLY RETURNING IT TO THE FILTER ELEMENT; (I) RESTORING RAW WATER FLOW THROUGH THE FILTER ELEMENT HAVING SCRUBBED CARBON; (J) TESTING THE FILTERED WATER FOR TASTE AND ODOR REMOVAL; (K) HYDRAULICALLY FLOWING TO A REACTIVATOR THE GRANULAR CARBON OF ANY FILTER WHICH HAS LOST ITS ABILITY TO SUBSTANTIALLY REMOVES TASTE AND ODOR; (L) REACTIVATING SAID CARBON TO RESTORE ITS ABILITY TO REMOVE TASTE AND ODOR; (M) HYDRAULICALLY RETURNING THE REACTIVATED CARBON TO THE FILTER ELEMENT; AND (N) RESTORING RAW WATER FLOW THROUGY THE FILTER ELEMENT HAVING THE REACTIVATED CARBON.