Method and equipment for treating developing solution wastewater

The invention relates to the technical field of sewage treatment, and discloses a method and equipment for treating developing solution wastewater, and the method comprises the following steps: mixing developing solution wastewater containing TMAH and air in a pressurized conveying process to obtain a first mixture; performing subcritical water catalytic oxidation on the first mixture to remove an organic matter TMAH to obtain a second mixture; performing gas-liquid separation treatment on the second mixture to obtain a third mixture; calcium chloride is added to the third mixture for phosphorus removal treatment, and a fourth mixture is obtained; and carrying out biochemical treatment on the fourth mixture to obtain discharge water and sludge. Wherein heat generated in the subcritical water catalytic oxidation process is recycled to preheat the first mixture. The redundant heat in the subcritical water catalytic oxidation production process can be used for other steps. Subcritical water catalytic oxidation i