NOVELTY - A chemical deposition method for processing high ammonia, nitrogen and phosphorus wastewater in domestic fowl and livestock farm comprises conducting solid-liquid separation to high ammonia, nitrogen and phosphorus wastewater by solid-liquid separating machine and discharging liquid into sedimentation tank to be further separated; removing ammonia, nitrogen and phosphorus substances from sewage; and making sewage and guanite sediment enter into crystallization tank to be crystallized into guanite, and sending sewage into sewage anaerobic fermentation process to be further treated.    USE - Chemical deposition method for processing high ammonia, nitrogen and phosphorus wastewater in domestic fowl and livestock farm (claimed).    ADVANTAGE - The method can remove 80-90% of phosphorus and 70-80% of ammonia and nitrogen. Discharged water can meet requirement of anaerobic fermentation. The reaction speed is fast without being affected by temperature. The raw material is easy to obtain and cost is low. The generated guanite sediment is also an efficient slow-release fertilizer.    DETAILED DESCRIPTION - Chemical deposition method for processing high ammonia, nitrogen and phosphorus wastewater in domestic fowl and livestock farm comprises:    (A) conducting solid-liquid separation by solid-liquid separating machine and discharging liquid into sedimentation tank to be further separated;    (B) pumping separated settled sewage into reaction tower internally provided with static bed layers which are strewn with reactants namely calcium magnesium phosphate added with calcium oxide and magnesium dioxide accounting for 1-3% and 1-4% of total reactant mass;    (C) removing ammonia, nitrogen and phosphorus substances from sewage in reaction tower to generate white crystal guanite sediment, where part of which are settled to bottom of reaction tower to be regularly or irregularly discharged, while other part along with sewage flows into crystallization tank; and    (D) making sewage and guanite sediment enter into crystallization tank to be crystallized into guanite, and meantime entering into solid-liquid separating machine to be separated, and sending sewage into sewage anaerobic fermentation process to be further treated.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic flow diagram illustrating a chemical deposition method for processing high ammonia, nitrogen and phosphorus wastewater in domestic fowl and livestock farm (Drawing includes non-English language text).