High-concentration ammonia nitrogen wastewater has a wide range of sources and large emissions. Such as fertilizers, coking, petrochemicals, pharmaceuticals, food, landfills, etc., all generate a large amount of high-concentration ammonia nitrogen wastewater. A large amount of ammonia nitrogen wastewater discharged into the water body will not only cause eutrophication of the water body and cause the black odor of the water body, but will also increase the difficulty and cost of water supply treatment, and even have a toxic effect on people and organisms. The impact of ammonia nitrogen wastewater on the environment has attracted attention in the field of environmental protection and around the world. Over the past 20 years, more research has been carried out on ammonia nitrogen wastewater treatment at home and abroad. Its research scope covers various treatment processes of biological and physicochemical methods, such as nitrification and algae cultivation; physical methods include reverse osmosis, distillation, soil irrigation; chemical methods include ion exchange, ammonia blowing, chemical precipitation, vertex chlorination, electrochemical treatment, catalytic cracking, etc. New technologies continue to emerge, showing promising prospects in the application of ammonia nitrogen wastewater treatment. Technical description: The ammonia nitrogen blowing tower is used to remove ammonia nitrogen from water, that is, the gas passes into the water, so that the gas and liquid are in full contact with each other, so that the free ammonia dissolved in the water passes through the gas-liquid interface and transfers to the gas phase, so as to achieve the purpose of removing ammonia nitrogen. Air is commonly used as a carrier (steam lift if water vapor is used as a carrier). Ammonia nitrogen in water is mostly present in a state of balance between ammonia ions (NH4+) and free ammonia (NH3). The equilibrium relationship is as follows: NH4++OH-NH3+H2O (1) The percentage distribution ratio between ammonia and ammonia ions can be calculated by the following formula: Ka = Kw/