Pressure swing contactor for the treatment of a liquid with a gas
First Claim
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1. A water treatment apparatus comprising:
- (a) a Prandtl layer turbine having a housing and a plurality of spaced apart members rotatably mounted within the housing;
(b) at least one inlet port for introducing a gas comprising at least ozone and water into the housing, the Prandtl layer turbine raising the gas and water to a first pressure; and
, (c) a chamber positioned downstream from the Prandtl layer turbine and at a second pressure which is lower than the first pressure.
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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.
19 Citations
23 Claims
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1. A water treatment apparatus comprising:
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(a) a Prandtl layer turbine having a housing and a plurality of spaced apart members rotatably mounted within the housing;
(b) at least one inlet port for introducing a gas comprising at least ozone and water into the housing, the Prandtl layer turbine raising the gas and water to a first pressure; and
,(c) a chamber positioned downstream from the Prandtl layer turbine and at a second pressure which is lower than the first pressure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mixing apparatus comprising:
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(a) a housing;
(b) at least one inlet pore for introducing at least one gas and at least one liquid to the housing;
(c) a Prandtl layer turbine mounted within the housing and positioned such that the at least one gas and at least one fluid flow through the Prandtl layer turbine and, (d) a chamber positioned downstream from the Prandtl layer turbine and at a lower pressure than the at least one gas and at least one fluid is exposed to in the Prandtl layer turbine whereby the gas forms microbubbles upon exposure to the lower pressure of the chamber. - View Dependent Claims (8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19)
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13. A mixing apparatus comprising:
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(a) a Prandtl layer means having a housing and disc means rotatably mounted within the housing;
(b) means for introducing at least one gas and at least one liquid to the housing; and
,(c) means for rapidly depressurizing the gas/liquid mixture whereby microbubbles are produced.
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20. A method for treating a liquid comprising water in a sealed vessel, with a gas comprising ozone, comprising the steps of:
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(a) introducing the gas into the vessel;
(b) increasing the pressure in the vessel;
(c) reducing the pressure to promote the formation of microbubbles and obtaining treated water by passing an off gas including ozone through an ozone destructor; and
,(d) withdrawing treated water from the vessel. - View Dependent Claims (21, 22, 23)
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Specification