Purification apparatus for VOC using photo catalysis

摘要

The present invention relates to a multi-step purification apparatus using a photocatalyst, and more specifically, to a multi-step purification apparatus using a photocatalyst, which uses an automated system to purify volatile organic compounds in multiple steps, thereby allowing convenient operation of the purification apparatus and further reducing concentration of finally discharged toxic gases. The apparatus comprises: a first purification unit (100) in which a fluid to be purified is introduced, purified, and then discharged; a second purification unit (200) in which the fluid purified in the first purification unit (100) is introduced, purified, and then discharged; a photocatalyst unit (300) which is installed inside the first purification unit (100) and the second purification unit (200) to purify the introduced fluid; and light emission units (400) which are installed inside the first purification unit (100) and the second purification unit (200) to emit light to the photocatalyst unit (300).