Treatment of produced water
AssigneeSeair Inc.
InventorsHarold Kinasewich, Kyle Greene, Todd Webb, Mike Zelen
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Abstract
A method of treating produced water containing hydrocarbons includes introducing microbubbles of a lift gas into the produced water in a separation stage to float oil to a surface of the produced water. The top layer of oil is removed from the surface of the produced water. Microbubbles of an oxidizing gas are introduced into the produced water in an aeration stage to oxidize contaminants. Microbubbles of an ultra-violet light treated oxidizing gas are introduced into the produced water in an advanced oxidation stage to oxidize remaining contaminants.
Claims7
A method of treating produced water containing hydrocarbons, comprising:
- introducing microbubbles of a lift gas consisting essentially of nitrogen gas into the produced water in a separation stage to float oil to a surface of the produced water;
- removing a top layer of oil from the surface of the produced water;
- introducing microbubbles of an oxidizing gas into the produced water in an aeration stage to oxidize contaminants selected from the group consisting of iron, metals, heavy metals, and BTEX;
- introducing an ultra-violet light treated oxidizing agent into the produced water in an advanced oxidation stage to oxidize remaining contaminants.
Dependencies are inferred from the claim text.