Method and system for wastewater reclamation
OwnerJames John Petersoninventor
Life of this patent
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Abstract
A method and system for the reclamation of secondary or tertiary municipal wastewater contaminated with ammonia and pharmaceuticals and wherein the systemic output is explicitly for use in industrial cooling, as feed to reverse osmosis, and as feed to advanced oxidation processes. A module having a footprint substantially less than current wastewater reclamation facilities entirely the gas transfer device, the upflow bioreactor, the media separator and a strainer that facilitates the method and system. Throughout the reclamation process, the streams interconnecting the systemic influent and the systemic output or effluent is under various pressures about standard atmospheric pressure to enable the smaller footprint of the module.
Claims20
A method of producing reclaimed wastewater, the method comprising:
- pressurizing an influent wastewater stream to a first pressure having a minimum pressure of 10 pounds per square inch (PSI) and a maximum pressure of 80 PSI;
- uniformly super-oxygenating the pressurized influent wastewater stream so as to output a non-effervescent oxygenation water stream;
- upflowing the non-effervescent oxygenation water stream through a fluidized bed bioreactor at an upflow rate between three gallons per minute per square foot (GPMSF) and six GPMSF so as to output a bioreactor effluent stream;
- and
- combining a first stream of the bioreactor effluent stream to the pressurized influent wastewater stream prior to said uniform super-oxygenation thereof,
- whereby greater than atmospheric pressure is applied to said streams throughout the method of producing reclaimed wastewater.
A system for treating wastewater, the system comprising:
- an influent pressure source configured to pressurize an influent, the influent pressure source having a source outlet;
- a gas transfer device having a gas transfer inlet and a gas transfer outlet, wherein the source outlet is in fluid communication with the gas transfer inlet so that the influent is pressurized prior to communicating with the gas transfer inlet;
- an upflow bioreactor fluidly coupled to the gas transfer outlet, the upflow bioreactor having a bioreactor inlet and a bioreactor outlet;
- a media separator having a separator inlet and a separator outlet, wherein the separator inlet is in fluid communication with the bioreactor outlet, and wherein the separator outlet is in fluid communication with the upflow bioreactor;
- and
- a submerged hollow fiber ultrafiltration membrane operating under a pressure driving force.
Dependencies are inferred from the claim text.