Ammonia nitrogen-containing wastewater treatment equipment

The invention relates to ammonia nitrogen-containing wastewater treatment equipment, which comprises a gas stripping tower, a heater, a catalyst reactor and a gas-gas heat exchanger. According to the present invention, ammonia nitrogen-containing wastewater and gas stripping gas are subjected to gas stripping in the gas stripping tower to form the gas stripping wastewater and the ammonia-containing gas, the ammonia-containing gas is heated by the heater and is treated by the catalyst reactor so as to make the ammonia in the gas be oxidized to obtain the treated gas, and the ammonia-containing gas and the treated gas are subjected to heat exchange through the gas-gas heat exchanger, wherein the heat exchange efficiency of the gas-gas heat exchanger is correspondingly adjusted according to the total heat value of the ammonia-containing gas so as to correspondingly reduce the heat exchange efficiency along with the increase of the total heat value or correspondingly increase the heat exchange efficiency along with the decrease of the total heat value.