Regenerative media filtration

Abstract

A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.

What is claimed is: 
     
         1 - 7 . (canceled) 
     
     
         8 . A regenerative filter comprising:
 a filter housing having inlet and outlet zones;   a fluid path provided between the inlet and outlet zones;   a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path;   a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements; and   a controller configured to:   drain all fluids from the filter housing;   refill the filter housing with fluid to an optimum level; and   initiate a cleaning sequence of the filter housing with the fluid at the optimum level.   
     
     
         9 . The regenerative filter of  claim 8 , wherein the controller is further configured to:
 agitate the tube sheet; and   initiate a pump to effectively air scour for a first predetermined amount of time.   
     
     
         10 . The regenerative filter of  claim 9 , wherein the controller is further configured to:
 drain the fluid at the optimum level from the filter housing;   rinse the filter housing;   charge the filter media of the plurality of filter elements;   fill the filter system with fluids to a full level; and   restart the regenerative filter with a clean plurality of filter elements.   
     
     
         11 . The regenerative filter of  claim 9 , wherein the first predetermined period of time is in a range of 0.5-1.0 hours. 
     
     
         12 . The regenerative filter of  claim 9 , wherein the controller is further configured to dwell for a second predetermined amount of time; and repeat the agitating, initiating, and dwelling steps until a third predetermined amount of time is complete. 
     
     
         13 . The regenerative filter of  claim 8 , wherein the fluid comprises water. 
     
     
         14 . The regenerative filter of  claim 8 , wherein the fluid comprises water mixed with an enzymatic cleaner. 
     
     
         15 . The regenerative filter of  claim 8 , wherein there is a water-to-air volume ratio for the tank that is substantially from 60/40 to 90/10 during the refilling step. 
     
     
         16 . A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by one or more processors of a controller, cause the controller to:
 drain all fluids from a filter housing of a regenerative filter, the regenerative filter having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path;   refill the filter housing with fluid to an optimum level; and   initiate a cleaning sequence of the filter housing with the fluid at the optimum level.   
     
     
         17 . The non-transitory computer readable storage medium of  claim 16 , wherein the controller is further configured to:
 agitate the tube sheet;   initiate a pump to effectively air scour for a first predetermined amount of time.   
     
     
         18 . The non-transitory computer readable storage medium of  claim 16 , wherein the controller is further configured to:
 drain the fluid at the optimum level from the filter housing;   rinse the filter housing;   charge the filter media of the plurality of filter elements;   fill the filter system with fluids to a full level; and   restart the regenerative filter with a clean plurality of filter elements.   
     
     
         19 . The non-transitory computer readable storage medium of  claim 16 , wherein the first predetermined period of time is in the range of 0.5-1.0 hours. 
     
     
         20 . The non-transitory computer readable storage medium of  claim 16 , wherein the fluid comprises water. 
     
     
         21 . The non-transitory computer readable storage medium of  claim 16 , wherein the fluid comprises water mixed with an enzymatic cleaner. 
     
     
         22 . The non-transitory computer readable storage medium of  claim 16 , wherein there is a water-to-air volume ratio for the tank that is substantially from 60/40 to 90/10 during the refilling step. 
     
     
         23 . The non-transitory computer readable storage medium of  claim 12 , wherein the controller is further configured to dwell for a second predetermined amount of time; and repeat the agitating, initiating, and dwelling until a third predetermined amount of time is complete, and wherein the first predetermined period of time is in a range of 0.5-1.0 hours, the second predetermined period of time is in the range of 1.0-2.0 hours, and the third predetermined period of time is in the range of 2.0-48.0 hours. 
     
     
         24 . The regenerative filter of  claim 12 , wherein the wherein the first predetermined period of time is in a range of 0.5-1.0 hours. 
     
     
         25 . The regenerative filter of  claim 12 , wherein the second predetermined period of time is in the range of 1.0-2.0 hours. 
     
     
         26 . The regenerative filter of  claim 12 , wherein the third predetermined period of time is in the range of 2.0-48.0 hours 
     
     
         27 . The regenerative filter of  claim 12 , wherein the first predetermined period of time is in a range of 0.5-1.0 hours, the second predetermined period of time is in the range of 1.0-2.0 hours, and the third predetermined period of time is in the range of 2.0-48.0 hours.