Method and apparatus for producing a nitrogen fertilizer from organic wastes

The present invention, the liquid phase by a heat treatment using a mineral or organic additive (suspensions, emulsions, solutions) to produce a nitrogen fertilizer from organic wastes in these waste sanitary handling and aerial emissions to a method and apparatus for reducing. The present invention, above it heats in a vacuum waste to a temperature between 40 ° C. and 90 ° C., the released gas containing carbon dioxide and ammonia is cooled, introduced into an aqueous absorbent Te, thus removed nitrogen fertilizer to produce, and the excess unabsorbed gas containing carbon dioxide back to the feed pump into the waste chamber, thereby self-maintaining first vacuum generated in step by a vacuum pump It is achieved by a method. Recycle of excess gas to the circuit, either through the right above the processing waste, or of the processing waste or via right above the gas cooling system, or part of the flow is the waste It passes through and some of the flow take the divided form to pass over the waste, is advantageously achieved by either. Preferably used gypsum slurry as an aqueous absorbent.