The present invention discloses an open evaporative absorption
sewage purification
system and an operating method, and relates to the technical field of
sewage treatment. An air-lifting device is arranged in a heat and
mass generating
tower, which is divided into an upper intermediate
sewage treatment zone and a lower concentrated
sewage treatment zone. The intermediate sewage circulation can effectively reduce the liquid carried at the outlet of the heat and
mass generating
tower. Dry air enters from the bottom of the lower concentrated
sewage treatment zone, and is fully in contact with the concentrated sewage with a higher temperature through the coarse-pore grid filler, so that the water in the concentrated sewage enters the air more fully; after the water-containing air enters the upper intermediate
sewage treatment zone, the corrugated plate in the corrugated filler is repeatedly turned back, so that the carried concentrated sewage droplets are captured, and the water-containing air passes through a
defogger to collect the entrained droplets. After being treated by the open evaporative absorption sewage purification
system, the amount of liquid carried in the air entering the heat and
mass absorption
tower can be significantly reduced, the quality of the
purified water can be improved, and the
purified water can be purified into process-
usable water at one time without increasing
energy consumption, without the need for
secondary treatment.