Backflushing sewage treatment device

Abstract

The invention discloses a backflushing sewage treatment device. The backflushing sewage treatment device comprises an outer shell, wherein a first sewage treatment chamber, a second sewage treatment chamber and a third sewage treatment chamber are sequentially formed in the inner cavity of the outer shell from top to bottom; a rotary filter plate mechanism is arranged on the first sewage treatmentchamber; a stirring propeller is arranged inside the second sewage treatment chamber; a first motor is fixedly mounted on the outer wall of the second sewage treatment chamber; the stirring propelleris fixedly connected with an output shaft of the first motor; a first filter plate is fixedly mounted on the inner wall of the second sewage treatment chamber; the first filter plate is positioned onthe lower side of the stirring propeller; a ceramic membrane filtration tube group is fixedly mounted on the inner side wall of the third sewage treatment chamber through a transverse rod; a left flushing chamber and a right settling chamber are formed below the ceramic membrane filtration tube group; and backflushing plates are arranged on the inner wall of the left flushing chamber. The backflushing sewage treatment device leaves enough time for oil and water separation, so that oil and water are fully separated; and meanwhile, the backflushing chamber backflushes the ceramic membrane filtration tube group to avoid membrane blockage, so that the service life of the backflushing sewage treatment device is prolonged.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a backwashing sewage treatment device. Background technique [0002] Sewage treatment (wastewater treatment) is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban Various fields such as landscape, medical care, and catering are increasingly entering the daily lives of ordinary people. According to the classification of sewage sources, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production sewage includes industrial sewage, agricultural sewage and Medical sewage, etc., while domestic sewage is sewage generated in daily life, which refers to a complex mixture of various forms of inorganic and organic matter, including f...

AI Technical Summary

Problems solved by technology

Through the first sewage treatment room, the second sewage treatment room and the third sewage treatment room, the sewage is treated in multiple stages, and the sedimentation chamber is used for sedimentation treatment of the sewage after the first multi-stage treatment, and is circulated through the return mechanism. Filter out more clean water resources, but this kind of sewage treatment device has a large loss on the ceramic membrane filter tube, and the membrane surface of the filter tube is easily blocked, which affects the filtration efficiency, and the ceramic membrane needs to be replaced frequently

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