▎ 摘　　要

NOVELTY - Sewage treatment device comprises a sand filter pool, an intermediate pool, a coupling reaction pool, a biochemical adjustment pool, a biological activated carbon pool, and a clear water pool connected in sequence. The coupling reaction tank is connected with a hydrogen peroxide generator. An ultraviolet generator is arranged in the coupling reaction cell. USE - Sewage treatment device for in-situ generation of hydrogen peroxide coupled with ultraviolet generator. ADVANTAGE - The sewage treatment device has a fast reaction rate and high reaction efficiency without secondary pollution, reduces the concentration of pollutants such as chemical oxygen demand (COD) and ammonia nitrogen in the effluent, and effectively oxidizes the refractory organic matter in the sewage by using advanced oxidation process of hydrogen peroxide and ultraviolet. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for treating sewage, which involves placing sewage to be treated in a sand filter tank, filtering the sewage by the quartz sand in the intermediate tank, and placing the pipeline mixer under the lifting of the outlet pump of the intermediate tank, and then entering the coupling reaction tank. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the sewage treatment device of the invention in situ generating hydrogen peroxide coupling ultraviolet generator. Middle water tank (2) Biochemical adjusting tank (3) Biological active carbon tank (4) Clear water tank (5) Acid medicine adding pipe (6) Alkali medicine adding pipe (7) Pipeline mixer (8) Middle water tank water outlet pump (9) Ultraviolet generator (10) Hydrogen peroxide generator (11) Biochemical adjusting tank water outlet pump (12) Clean water tank water outlet pump (13) Coupling reaction tank (14)