Device and process for degrading VOCs by microorganism coupled graphene nanotechnology

The invention provides a device for degrading VOCs by a microorganism coupled graphene nanotechnology. The device comprises a VOCs waste gas collection unit, wherein a fan is arranged at the outlet ofthe VOCs waste gas collection unit, the VOCs waste gas collection unit is communicated to a waste gas purification unit, and a graphene diatom porcelain microspheres, multiple stages of rotational flow plates and a spraying unit for spraying a microbial strain spraying liquid are sequentially arranged in the waste gas purification unit in a waste gas flowing direction. The invention further provides a purification process using the device. According to the invention, the device and the process have advantages of low cost, high removal efficiency, low secondary pollution, high safety, good biocompatibility, excellent aging resistance and the like, and particularly can completely degrade benzene, xylene, formaldehyde, dichloromethane, chlorobenzene, ethanethiol, nitrobenzene, dichloromethane, diisocyanate, toluene