Method for treating glufosinate-ammonium crystallization mother liquor

The invention relates to the technical field of chemical production, and particularly discloses a glufosinate-ammonium crystallization mother liquor treatment method which comprises the following steps: adding activated carbon into a glufosinate-ammonium mother liquor, adsorbing, decolorizing and filtering to obtain a decolorized mother liquor; removing part of water from the decolorized mother liquor, cooling, crystallizing, and filtering to obtain a secondary salt product and a glufosinate-ammonium aqueous solution; adding a crystallization solvent into the glufosinate-ammonium aqueous solution, cooling, crystallizing and filtering to obtain glufosinate-ammonium crystals and filtrate; rectifying the filtrate to obtain a recovered solvent and distillation mother liquor; the recovered solvent is circularly used as a crystallization solvent, and the distillation mother liquor is returned to be combined with the decolorizing mother liquor for dehydration. The treatment method of the glufosinate-ammonium crystal