NOVELTY - The method for the energy-optimized extraction of ammonia salts from fluids comprising ammoniac or ammonia compounds such as liquid manure, biogas plant effluents or municipal and industrial wastewaters or products, comprises subjecting the liquid phase to a desorber-stripping process, where the exhaust vapors are fed in opposite flow in the stripping column, and the vapor flow enriched with ammonia is further washed in an absorption stage by means of an aqueous solution comprising acids and/or salts such as sulfuric acid ammonium sulfate solution.    USE - Method useful for the energy-optimized extraction of ammonia salts from fluids comprising ammoniac or ammonia compounds such as liquid manure, biogas plant effluents or municipal and industrial wastewaters or products.    ADVANTAGE - The method ensures simple and efficient energy-optimized extraction of ammonia salts from fluids comprising ammoniac or ammonia compounds with less consumption of energy in environmental friendly manner.    DETAILED DESCRIPTION - The method for the energy-optimized extraction of ammonia salts from fluids comprising ammoniac or ammonia compounds such as liquid manure, biogas plant effluents or municipal and industrial wastewaters or products, comprises subjecting the liquid phase to a desorber-stripping process, where the exhaust vapors are fed in opposite flow in the stripping column, and the vapor flow enriched with ammonia is further washed in an absorption stage by means of an aqueous solution comprising acids and/or salts such as sulfuric acid ammonium sulfate solution in order to fully convert ammoniac to ammonium salt. The temperature of the absorption solution is maintained in a range such that a part of the water vapor present in the vapor flow escapes. The vapor flow leaving the absorption stage in the desorber forms a circulation, recirculates and is utilized as desorption medium. The appearing pressure loss is compensated through an exhaust vapor condenser. The desorber comprises a counter flow stripping column, in which the fluid phase to be stripped abandoned in the column head is supplied during the vapor flow from below the column. The absorption stage comprises a counter flow column treatment. The absorption solution is abandoned simply or repeatedly in the head of the column in circulation-form manner and the ammonia -containing vapor flow is supplied to the column. The absorption solution is held and adjusted in a given concentration level. Acids are supplied for adjusting the concentration level of the solution on one hand and a part of the solution is removed from the process on the other hand. The heating of the supplied fluid phase is carried out over a heat exchanging arrangement, which is flowed through by stripping flow. The ammoniac bounded as ammonium salt contained in the fluid phase to be stripped is chemically released through the supply of alkaline material and subsequently physically removed. A partial flow is drawn-off for adjusting the concentration of the desorbed gas from the vapor flow. The circulating vapor flow is supplied over a washer in order to absorb carbon dioxide of the vapor flow by an alkaline solution and in order to bind chemically. The absorption solution is held in saturated condition and a part of the solution is continuously or discontinuously stripped in a crystallizer in which the formation of the crystals is carried out through cooling and the crystals are separated during the mother solution is subjected to circulation in the absorption solution. The absorption solution is held in saturated manner and the formed crystals are continuously or discontinuously separated from the solution. The desorption or the total desorption circulation is carried out under defined pressure ratio. The thermal energy is supplied for maintaining the necessary process- and operation temperature and/or the desired concentration in the absorption solution. The fluid phase to be treated is subjected to pre-stripping process in which a partial quantity of dissolved carbon dioxide and hydrogen sulfide is removed. The degassing is carried out in the pre-stripping process under vacuum.