Methods for cleaning filtration system media
AssigneeParkson Corporation
InventorsHoward Carmichael Boyd, William Frederick Foreman, III
Life of this patent
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Abstract
The present disclosure provides improved methods for conducting a wash cycle in a filtration unit. The methods may be used alone or in combination with one another to achieve the improvements described herein. Filtration units adapted for carrying out the novel methods are also provided. Through the use of the methods and filtration units described, significant economic benefits are obtained without a significant increase in the costs of the filtration unit or in the costs of operation of the filtration unit.
Claims20
A method for carrying out a wash cycle in a filtration device comprising a filter bed of porous filtration media units, an upper plate, a first influent pipe, a first effluent pipe and a scouring fluid inlet pipe comprising a plurality of openings on a top portion of the scouring fluid inlet pipe and a scouring fluid nozzle in communication with at least one of the openings on the scouring fluid inlet pipe, the method comprising the steps of:
- a. directing a scouring fluid from the scouring fluid nozzle into the filter bed, wherein the scouring fluid nozzles comprise a restriction point to provide a jet force to the scouring fluid;
- b. directing a particle removal fluid from the first influent pipe;
- and
- c. removing the particle removal fluid from the filtration unit through the first effluent pipe, wherein the first effluent pipe is located below the upper plate or located above the upper plate such that the distance from a bottom portion of the upper plate to a bottom invert on the first effluent pipe is 15 inches or less.
A method for carrying out a wash cycle in a filtration device comprising a filter bed of porous compressible filtration media units disposed within a housing, an upper perforated plate and a lower perforated plate at least one of which is movable, an influent pipe, and a scouring fluid inlet pipe comprising a plurality of openings on the scouring fluid inlet pipe and a plurality of scouring fluid nozzles in fluid communication with said plurality of openings on the scouring fluid inlet pipe, the method comprising the steps of:
- a. introducing a particle removal fluid from the influent pipe into said housing;
- b. expanding said filter bed by moving one of said plates;
- c. directing a scouring fluid from the scouring fluid nozzles into the particle removal fluid, wherein the scouring fluid nozzles comprise a restriction point to provide a jet force to the scouring fluid which propels individual compressible filtration units into impacts that release trapped contaminant particles from said compressible filtration media units;
- and
- d. removing the particle removal fluid along with released contaminant particles from the filtration device.
A method for carrying out a wash cycle in a filtration device comprising:
- a. directing a scouring fluid from a scouring fluid inlet pipe comprising a plurality of openings and at least one scouring fluid nozzle in fluid communication with at least one of the openings of the scouring fluid inlet pipe into a filter bed housing containing compressible filtration media units, said filter bed housing having an upper plate and lower plate, wherein at least one of the upper plate and lower plate are moveable, and wherein said at least one scouring fluid nozzle comprises a restriction point to provide a jet force to the scouring fluid to create collisions between individual compressible filtration media units and with the filter bed housing causing captured contaminants to be released from the compressible filtration media units;
- b. directing a particle removal fluid into the filter bed housing;
- and
- c. removing the particle removal fluid from the filter bed housing, wherein the scouring fluid nozzle is positioned below the lower plate.
Dependencies are inferred from the claim text.