Black and odorous riverway water treatment process

The invention is suitable for the technical field of riverway water treatment, and provides a black and odorous riverway water treatment process, a combined air flotation system, an SMBR integrated system and a stacked screw machine system are included, the SMBR integrated system is composed of a first-stage anoxic tank, an aerobic tank, a second-stage anoxic tank, an MBR membrane tank, a clean water tank and an equipment room; before river water enters the SMBR integrated system, hair and solid impurities in water are intercepted through the hydraulic grid to protect the membrane assembly, and then the river water sequentially passes through the first-stage anoxic tank, the aerobic tank, the second-stage anoxic tank and the MBR membrane tank, so that ecological restoration of the black and odorous river water is realized, the space around a river channel is fully utilized, deterioration of the ecological environment of the river channel is really avoided, and the ecological environment of the river channel i