Abstract: A method for recovering ammoniacal nitrogen, in the form of ammonium carbonate and/or ammonium bicarbonate, from an ammoniacal nitrogen-containing vapor that comprises introducing said vapor into at least one pressurizable ammonia scrubbing vessel containing water, simultaneously introducing a carbon dioxide-containing vapor into at least one pressurizable carbon dioxide scrubbing vessel containing water, and simultaneously pumping the solutions created in said scrubbers via hydrologic connections between said scrubbers to mix the solution to create an ammonium carbonate and/or ammonium bicarbonate containing mixture, all while maintaining independent and unmixed vapor streams throughout the entire process. The method further involves recovering ammonium carbonate and/or ammonium bicarbonate from the mixture for further use.

Abstract: An organic waste material processing system includes a waste material holding tank and a slurry-producing device configured to process organic waste material into a slurry. A waste processing section has at least one pressurizeable tank connected to the waste material holding tank receiving slurry therefrom. The pressurizeable tank includes a slurry temperature adjusting part and a first hydrocarbon capturing structure configured to capture hydrocarbon vapors produced by the slurry at a predetermined temperature. A hydrocarbon vapor processing section collects captured hydrocarbon vapors from the waste processing section such that an electric power producing apparatus generates electricity using collected hydrocarbon vapor and provides electric power to at least the pretreatment section and the waste processing section. A waste post-processing section is configured to receive processed slurry produce salable organic materials, nutrient enhanced media and recycled water.