Wastewater deamination process based on ion exchange fibers

The invention discloses a wastewater deamination process based on ion exchange fiber, which specifically comprises the following steps: filling wastewater into a liquid storage bottle, connecting a water pump, a liquid flowmeter and a cavity side of a hollow fiber membrane contactor to form a circulation loop, and sequentially connecting a valve, a vacuum meter and a vacuum pump to a shell side of the hollow fiber membrane contactor, a filter membrane in the hollow fiber membrane contactor is a modified filter membrane, the modified filter membrane comprises the following raw materials: polyvinylidene fluoride, lithium chloride monohydrate, modified fibers and a modified filler, cations on the modified fibers and the modified filler can be subjected to ion exchange with ammonia in wastewater, and the ammonia is adsorbed in pores of the modified fibers and the modified filler; the zinc organic framework on the surface of the modified filler can provide a large number of gaps and has more acid sites, the ammoni