Purine production wastewater treatment method

The invention relates to a purine production wastewater treatment method. The purine production wastewater treatment method comprises the following steps: after mixing amination wastewater, cyclization wastewater and purine wastewater which are produced in the purine production process, performing atmospheric distillation to distill light components; after a tower kettle is cooled down to 67-70 DEG C after atmospheric distillation, performing reduced pressure distillation under the vacuum condition to distill a water phase; discharging residual liquid out of a distillation still to be mixed with the distilled light components for incineration; performing aftertreatment on the distilled water phase. The purine production wastewater treatment method is economical and reasonable, simple to operate, technically feasible and simple and convenient to operate, can effectively reduce the toxicity of wastewater, COD in wastewater and the contents of NH3-N and the like in wastewater, and finally enables the discharged water to meet the accepting requirements of a wastewater station.