Coal chemical wastewater treatment device and treatment process

The invention discloses a coal chemical wastewater treatment device and process, and the device comprises a regulating tank, an internal circulation anaerobic reactor, a hydrolytic acidification reaction tank, a mud-film composite reaction tank, a sedimentation tank and a denitrification filter tank which are sequentially arranged according to the treatment flow of coal chemical wastewater, the internal circulation anaerobic reactor is provided with a sludge image recognition system for observing the reaction condition; according to the coal chemical industry wastewater treatment device and the treatment process disclosed by the invention, an internal circulation anaerobic reactor in the device is provided with a sludge image recognition system which is used for analyzing characteristic parameters of sludge, so that process operation parameters can be timely and effectively adjusted, and matters needing to be noticed during operation can be reminded in advance; according to the process, all the reaction devic