Reflux type ozone MBR (membrane bioreactor) sewage treatment equipment

Abstract

The invention discloses reflux type ozone MBR (membrane bioreactor) sewage treatment equipment. The equipment comprises a reaction tank, an MBR membrane group, an ozone generator, an aeration device, a suction pump and a flow propeller. The reaction tank is partitioned into a biochemical reaction tank, an ozone reaction tank and a clear water tank by a longitudinal partition and a transverse partition, and the flow propeller propels sewage to circulate in the biochemical reaction tank and the ozone reaction tank. The MBR membrane group and the aeration device are arranged in the ozone reaction tank, and the ozone generator is adopted for aeration of the ozone reaction tank through the aeration device. Water treated by the MBR membrane group is pumped into the clear water tank by the suction pump. By high combination of the biochemical technique, the membrane technique and the ozone catalytic oxidation technique, space occupation of the system is reduced, the space utilization rate is increased, and high effluent quality and high treatment efficiency are realized; by ozone aeration for flushing of the MBR membrane group, sludge is prevented from deposition on the surface of the MBR membrane group, and independent arrangement of an aeration system for the MBR membrane group is avoided, so that equipment cost is saved.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a backflow type ozone MBR sewage treatment equipment. Background technique [0002] At present, the pollution brought by industrialization has greatly deteriorated the human living environment. All kinds of water sources are polluted to some extent. People use sedimentation tanks for mud-water separation in process sections such as tap water pretreatment and municipal sewage standard discharge. The sedimentation tank requires a large area and takes a long time to settle. The use of MBR technology for mud-water separation can not only greatly reduce the processing time, but also intercept sludge more effectively and improve the quality of produced water. MBR technology has the advantages of small footprint, good water discharge effect, stable standard effect and strong impact load resistance, etc. However, there are also disadvantages such as serious membrane fouling, s...

AI Technical Summary

Problems solved by technology

The use of MBR technology for mud-water separation can not only greatly reduce the processing time, but also intercept sludge more effectively and improve the quality of produced water. MBR technology has the advantages of small footprint, good water discharge effect, stable standard effect and strong impact load resistance, etc. Advantages, but there are also disadvantages such as serious membrane fouling, short service life and high cost of membrane replacement

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