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US 6,568,900 B2Granted
Pressure swing contactor for the treatment of a liquid with a gas
AssigneeFantom Technologies Inc.
InventorsWayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Philips
Life of this patent
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Abstract
A residential method for treating water with an oxidizing gas operates under elevated pressure. The elevated pressure is obtained by means of a pressurized oxidizing gas source (eg. an air pump) or a Prandtl layer turbine. The elevated pressure of the treated water is optionally used to dispense the treated water. The Prandtl layer turbine may be used to obtain particularly fine bubbles of a gas (eg. bubbles from about 1μ to about 20μ in diameter) in a liquid.
Claims20
A water treatment apparatus comprising:
- (a) a Prandtl layer pump having a housing;
- (b) at least one inlet port for introducing a gas comprising at least ozone and water into the housing, the Prandtl layer pump raising the gas and water to a first pressure;
- (c) a chamber positioned downstream from the Prandtl layer pump, the chamber receiving ozonated water from the Prandtl layer pump;
- and,
- (d) wherein the chamber is at a second pressure which is lower than the first pressure and the pressure differential between the first and second pressures is 20 psi or more.
2 more elements
A mixing apparatus comprising:
- (a) a housing;
- (b) at least one inlet port for introducing at least one gas and at least one liquid to the housing;
- (c) a Prandtl layer pump mounted within the housing and positioned such that the at least one gas and at least one fluid flow through the Prandtl layer pump;
- (d) a chamber positioned downstream from the Prandtl layer pump and at a lower pressure than the at least one gas and at least one fluid is exposed to in the Prandtl layer pump;
- and,
- (e) a passageway in flow communication with a source of at least two gases whereby at least two gasses are introduced through the inlet port and the at least one liquid is inert such that the at least one liquid is a media for the dissolution of one of the gases into another of the gases or for the reaction of the gases with each other
- whereby the gas forms microbubbles upon exposure to the lower pressure of the chamber.
4 more elements
A mixing apparatus comprising:
- (a) a Prandtl layer means having a housing and disc means rotatably mounted within the housing;
- (b) passageway means for introducing at least one gas and at least one liquid to the housing;
- (c) chamber means for rapidly depressurizing the has/liquid mixture whereby microbubbles are produced;
- and,
- (d) a passageway in flow communication with a source of at least two gases whereby at least two gasses are introduced into the housing and the at least one liquid is inert such that the at least one liquid is a media for the dissolution of one of the gases into another of the gases or for the reaction of the gases with each other.
2 more elements
Dependencies are inferred from the claim text.