Efficient treatment method for tungsten smelting high-concentration ammonia-nitrogen wastewater

The invention relates to the field of three-waste treatment in tungsten-molybdenum smelting, in particular to an efficient treatment method for high-concentration ammonia-nitrogen wastewater in tungsten smelting, which comprises the steps of high-concentration ammonia-nitrogen wastewater collection, pH value regulation, precise filtration, ammonia-nitrogen removal by distillation, secondary deep ammonia-nitrogen removal, pH value regulation, D318 resin adsorption, pH value regulation and the like. The method comprises the following steps: firstly, collecting high-concentration ammonia nitrogen wastewater, collecting according to an output source, adjusting the pH value of liquid caustic soda to be greater than or equal to 12 after collection is completed, then carrying out precise filtration, removing suspended matters in the wastewater, deeply removing ammonia nitrogen through distillation, discharging water after ammonia nitrogen removal, deeply removing ammonia nitrogen for the second time according to a d