The invention discloses an
ammonia recovery method of high-
ammonia-and-
nitrogen waste water, and belongs to the technical field of
sewage treatment. The
ammonia recovery method comprises the steps: firstly, the high-ammonia-and-
nitrogen waste water passes through a
decarburization tower where carbon-dioxide-containing steam and ammonia-containing steam are introduced, and
calcium and
magnesium ions in the waste water are removed; then the high-ammonia-and-
nitrogen waste water passes through a
deamination tower, steam-stripping
deamination is carried out at 80-90 DEG C, ammonia and nitrogen inthe waste water enter a steam phase, high-concentration ammonia-containing mixed steam is formed and collected at the top of the
deamination tower, one part of the ammonia-containing mixed steam flowsback to the
decarburization tower, and the remaining part of ammonia-containing mixed steam is introduced into a condenser to be condensed and then subjected to gas-liquid separation; and finally,
effluent of the deamination tower enters a subsequent treatment facility to be subjected to biochemical treatment, separated ammonia water enters a carburization tower where the carbon-dioxide-containing steam is introduced, and
ammonium bicarbonate is formed and serves as a recycled product. By adopting the method for high-ammonia-and-nitrogen waste
water treatment and ammonia
recovery, the deamination effect and ammonia recovery efficiency of the high-ammonia-and-nitrogen waste water can be improved greatly, and additionally treatment equipment can further be prevented from being scaled.