Filtration apparatus and method
AssigneeCAE Ransohoff Inc.
InventorLyle Carman
Life of this patent
Estimating the term…
Abstract
An improved filtration system comprises a vessel divided into a concentrate chamber and a permeate chamber by a permeable septum. An ultrasonic wave generator is mounted to the vessel and positioned to direct ultrasonic waves through both the permeate contained in the permeate chamber and the permeable septum. A circulator such as a pump or agitator is operably associated with the concentrate chamber to provide a shearing force on the surface of the permeable septum. A vessel inlet port allows concentrate to flow into the concentrate chamber and a permeate outlet port allows permeate to be withdrawn.
Claims13
A filtration system comprising:
- a vessel;
- a permeable septum in said vessel partitioning said vessel into a concentrate chamber and a permeate chamber;
- a circulator operably associated with the concentrate chamber;
- a concentrate inlet port in said vessel and in communication with said concentrate chamber;
- a concentrate outlet port in communication with said concentrate chamber;
- a permeate outlet port in said vessel and in communication with said permeate chamber;
- and
- an ultrasonic wave generator mounted to said vessel and positioned to direct ultrasonic waves through permeate contained in said permeate chamber and through said permeable septum in a direction from the permeate chamber towards the concentrate chamber;
- wherein said circulator is a pump in fluid flow communication with said concentrate outlet port and said inlet port.
A filtration process for separating selected components from a concentrate into a permeate that comprises:
- introducing the concentrate into a concentrate chamber of a housing having a permeable septum disposed therein;
- pressurizing the concentrate chamber to force the permeate to pass through said permeable septum;
- circulating the concentrate in said concentrate chamber to induce a shearing on said permeable septum;
- generating an ultrasonic wave through the permeate and towards said permeable septum;
- and
- collecting the permeate passing through said permeable septum as the ultrasonic wave is generated;
- wherein the concentrate is circulated across said permeable septum by pumping concentrate from an outlet port in said housing to an inlet port in said housing.
A filtration system comprising:
- a vessel;
- a permeable septum in said vessel partitioning said vessel into a concentrate chamber and a permeate chamber;
- a rotary agitator operably associated with the concentrate chamber;
- a concentrate inlet port in said vessel and in communication with said concentrate chamber;
- a permeate outlet port in said vessel and in communication with said permeate chamber;
- and
- an ultrasonic wave generator mounted to said vessel and positioned to direct ultrasonic waves through permeate contained in said permeate chamber and through said permeable septum in a direction from the permeate chamber towards the concentrate chamber.
Dependencies are inferred from the claim text.