The following small series will answer your questions about the equipment and technology of catering sewage treatment:

The technological process of catering sewage treatment is as follows: grille → regulating tank → lifting pump → air flotation →A/O contact biochemical tank → secondary sedimentation tank → disinfection and discharge

sludge concentration tank → box filter press → transportation (supernatant and filtrate are returned to the regulating tank of pump house)

Catering sewage part: comprehensive sewage self-discharge. After water quantity and quality adjustment and pre-aeration, the sewage is pumped to the oil separation sedimentation tank, and then enters the air flotation system to remove emulsified oil, and then enters the compound A/O biological reaction tank for anoxic-aerobic biochemical treatment to complete the nitrification and denitrification process of ammonia nitrogen treatment. The aerobic stage degrades organic matter under the combined action of suspended activated sludge and attached biofilm. After the remaining suspended solids are removed by precipitation, the effluent is disinfected by ultraviolet rays and then discharged into the urban pipe network.