Biochemical-photocatalytic advanced water treatment method for PBBC wastewater

The invention discloses a biochemical-photocatalytic advanced water treatment method for PBBC wastewater. The method comprises the following steps: (1) filtering the PBBC wastewater; (2) taking a nickel net loaded with titanium dioxide as a photocatalyst, wherein the wave length of the ultraviolet is 254 nm, the light-catalyzed reaction time is 1.5-3 hours; (3) reacting the wastewater in an ABR reaction pool for 20-40 hours, raising the temperature to 28-32 degrees centigrade and continuously performing aeration reaction for 12-24 hours; (4) reacting the wastewater under a catalytic action of the ultraviolet, taking the nickel net loaded with titanium dioxide as a photocatalyst, wherein the wave length of the ultraviolet is 254 nm, the light-catalyzed reaction time is 2-3 hours; (5) performing ion exchange on the wastewater through an ion exchange resin to desalt. By means of combining the biochemical process with the photocatalytic process, through the photocatalytic pretreatment, the method is capable of increasing the biodegradability of the wastewater to have complementary advantages and achieving the aim of advanced degradation of the wastewater.