Method and system for treating wastewater
AssigneeEureka Resources, LLC
InventorsDaniel Ertel, Kent McManus, Jason Rushing, Jerel Bogdan
Life of this patent
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Abstract
Methods and systems are provided herein for treating wastewater, such as wastewater from oil and natural gas production. Distilled water may be treated with bacteria and other micro-organisms to remove nitrogen compounds from the distilled water. The distilled water may be produced from pretreating and distilling wastewater. The treatment steps of the distilled water include subjecting the water to microbial action under both anoxic and aerobic conditions and employing a membrane bioreactor to further purify the water. The purified water is still further purified by either reverse osmosis or ion exchange systems.
Claims20
A method of preparing de-wasted water from oil and/or natural gas production wastewater, the method comprising:
- distilling oil and/or natural gas production wastewater to produce a distilled water comprising contaminants, the contaminants comprising nitrogen compounds;
- purifying the distilled water to produce a purified water therefrom, said purifying comprising:
- adjusting the temperature of the distilled water to between 20° C. to 35° C.;
- denitrifying a portion of the nitrogen compounds in the distilled water under anoxic conditions;
- nitrifying additional nitrogen compounds in the distilled water under aerobic conditions;
- and
- introducing the distilled water to a membrane bioreactor comprising a membrane to remove a portion of the contaminants from the distilled water to arrive at a purified water from the membrane bioreactor;
- and
- introducing the purified water to a reverse osmosis system to convert the purified water into a de-wasted water that meets or exceeds each de-wasted water criterion of General Permit WMGR123 (Pennsylvania Department of Environmental Protection, 2012).
Dependencies are inferred from the claim text.