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AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsBrian J. Cantwell, Craig S. Criddle, Yaniv D. Scherson, George F. Wells, Xing Xie, Koshlan Mayer-Blackwell
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A bioreactor designed to produce N2O from organic nitrogen and/or reactive nitrogen in waste is coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction, e.g., catalytic decomposition to form oxygen and nitrogen gas. Heat from the exothermic reaction may be used to generate power. The N2O may alternatively be used as an oxidant or co-oxidant in a combustion reaction, e.g., in the combustion of methane. The bioreactor may have various designs including a two-stage bioreactor, a hollow-fiber membrane bioreactor, or a sequencing batch reactor. The bioreactor may involve Fe(II)-mediated reduction of nitrite to nitrous oxide.
A method for wastewater treatment and energy production wherein nitrogen is removed from wastewater and converted to nitrous oxide and wherein energy is produced from the nitrous oxide, the method comprising:
Dependencies are inferred from the claim text.