US 4,659,463 AGranted

System to remove contaminants from water

AssigneeWater Soft, Inc.

InventorsJames W. Chandler, William D. Chandler

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Abstract

A system to remove contaminants from water includes, in the pressurized water flow lines, a venturi nozzle assembly to entrain air in the water, a pressure tank to store and deliver the air laden water, an aerator/precipitator tank assembly to remove the excess air and any residual gases from the water in the pressurized system and to remove contaminants from the water and a filter tank having a filtration bed therein to remove the remaining precipitated contaminants from the water and to deliver the water to service. The aerator/precipitator tank assembly includes a top manifold sealed on the tank having an inlet operative to spray air laden water into the tank and an outlet selectively operative to vent excess air from the tank while maintaining system pressure, a float valve assembly carried by the manifold selectively operative to open when excess air builds up in the tank to vent the excess air through the manifold outlet and a layer of calcium carbonate rocks in the bottom of said tank to continue removing iron contaminants from the water moving downwardly therethrough.

Claims22

Dependent claims

A system for removing contaminants from water under pressure comprising means to entrain sufficient air in the water substantially to oxidize contaminants contained in the water;

first water supply line means fluidically connecting the means to entrain with an aeration and precipiation means;
the aeration and precipitation means including an aeration tank having an inlet to spray the air laden water from the means to entrain into the pressurized air head to further expose the air laden water to oxygen, vent means in the air tank intermittently to remove excess air and any residual gases from the pressurized air head in the aeration tank, rocks in the bottom of the aeration tank having a surface layer thereon formed by the water in the water column depositing oxidized contaminants as a precipitate layer during movement through the rocks and a first outlet adjacent the bottom of the aeration tank, the water and any contaminants contained therein after passing through the rocks leaving the aeration tank through the first outlet;
second water line means fluidically connecting the first outlet of the aeration and precipitation means with a filter tank;
the filter tank having an opening, a second outlet and a filter bed therein, the water and any contaminants therein from the aeration and precipitation means sequentially passing through the opening, filter bed and second outlet of the filter tank finally to filter the water for selective delivery to service.

1 more element

Dependencies are inferred from the claim text.