The present invention is directed to a process for removing nitrogen-based compounds in a gas stream by absorbing at least a portion of one of those compounds into a liquid stream. The absorbed nitrogen-based compound in the liquid stream is then reacted with a liquid phase chemical compound to produce a nitrogen-based product. The nitrogen-based compound in the gas stream and the liquid phase chemical compound with which the absorbed nitrogen-based compound is reacted may be “organic” compounds, i.e. compounds derived from living organisms, such as from animal matter or plant or vegetable matter, or having animal or plant origins. The nitrogen-based compound in the gas stream may be ammonia. The liquid phase chemical compound may be organic acetic acid or organic citric acid, and the nitrogen-based product may be an organic fertilizer, such as organic ammonium acetate or organic ammonium citrate that may be certified as organic.
