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CN-224226809-U - Membrane bioreactor for sewage treatment

CN224226809UCN 224226809 UCN224226809 UCN 224226809UCN-224226809-U

Abstract

The utility model discloses a membrane bioreactor for sewage treatment, and relates to the field of sewage treatment. The membrane bioreactor for sewage treatment comprises a treatment box, a plate-frame membrane assembly, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe, wherein the two sides of the upper end of the treatment box are respectively fixedly connected with the water inlet pipe and the water outlet pipe; the utility model can clean the surface impurities without disassembling the plate-frame type membrane component, greatly simplifies the cleaning flow, reduces the labor and time cost, ensures the up-and-down reciprocating movement of the air jet pipe, and can clean the surface of the plate-frame type membrane component in an omnibearing and dynamic way by matching with the inclined air jet of the air jet head.

Inventors

  • WANG ZHENYANG
  • ZHENG TAO
  • LUO HUAFEI

Assignees

  • 江苏海峡环保科技发展有限公司

Dates

Publication Date
20260512
Application Date
20250725

Claims (6)

  1. 1. The membrane bioreactor for sewage treatment is characterized by comprising a treatment box (1), wherein a water inlet pipe (101) and a water outlet pipe (102) are respectively fixedly connected to two sides of the upper end of the treatment box (1), and the membrane bioreactor further comprises: The plate-frame type membrane assemblies (2) are vertically arranged in the treatment box (1) at equal intervals and are positioned between the water inlet pipe (101) and the water outlet pipe (102); The air ejector tube (301) is arranged in the treatment box (1) in a lifting manner and is positioned at one side of the plate-frame type membrane component (2) close to the filtering surface; The jet heads (302) are fixedly connected to one side, close to the plate-frame type membrane assembly (2), of the jet pipes (301) at equal intervals; The sewage draining pipe (106) is provided with a plurality of drainage ports, the sewage draining pipe is fixedly connected with the lower end of one side of the processing box (1), the sewage draining port is formed in one side, close to the filtering surface, of the plate-frame type membrane assembly (2), of the processing box (1), and the drainage ports of the adjacent sewage draining pipes (106) are respectively communicated with one another.
  2. 2. The membrane bioreactor for sewage treatment according to claim 1, wherein two guide rods (3) are symmetrically and fixedly connected to positions, close to the air spraying pipes (301), in the treatment tank (1), two sliding sleeves (305) are symmetrically and fixedly connected to the air spraying pipes (301), the sliding sleeves (305) are slidably connected to the guide rods (3), air spraying ports of the air spraying heads (302) face downwards obliquely to the plate-frame membrane assembly (2), and air conveying pipes (303) are fixedly connected to air inlets of the air spraying pipes (301).
  3. 3. The membrane bioreactor for sewage treatment according to claim 2, wherein the bottom of the treatment tank (1) is fixedly connected with an air box (104), the lower end of one side of the treatment tank (1) is fixedly connected with an air pump (103) for conveying air into the air box (104), one end of the air pipe (303) away from the air pipe (301) extends downwards into the air box (104), and the air pipe (301) is communicated with the air box (104) through the air pipe (303).
  4. 4. The membrane bioreactor for sewage treatment according to claim 1, wherein a cleaning brush (304) is fixedly connected to the lower side of the air jet head (302) on the air jet pipe (301), and a cleaning end of the cleaning brush (304) is in contact with a filtering surface of the plate-frame membrane assembly (2).
  5. 5. A membrane bioreactor for sewage treatment according to claim 1, characterized in that the treatment tank (1) is fixedly connected with an observation window (105).
  6. 6. The membrane bioreactor for sewage treatment according to claim 1, wherein an insertion opening matched with the plate-frame type membrane assembly (2) is formed in the upper end of the treatment tank (1), and a lifting handle (201) is fixedly connected to the position, exposed out of the insertion opening, of the upper end of the plate-frame type membrane assembly (2).

Description

Membrane bioreactor for sewage treatment Technical Field The utility model belongs to the technical field of sewage treatment, and particularly relates to a membrane bioreactor for sewage treatment. Background A Membrane Bioreactor (MBR) is a high-efficiency sewage treatment system combining a membrane separation technology and a biological treatment technology, and has the core principle that active sludge and macromolecular organic matters are trapped in the reactor by utilizing the physical entrapment effect of a membrane component (such as a plate frame type and a hollow fiber type, etc.), so that solid-liquid separation is realized, and meanwhile, organic pollutants in sewage are removed by the microbial degradation effect. In the long-term operation process, a large amount of trapped activated sludge, macromolecular organic matters and other impurities can be gradually accumulated on the surface of the membrane component to form a filter cake layer or cause membrane hole blockage, so that the membrane flux is reduced, the transmembrane pressure is increased, the water flow through efficiency and the purification effect of the system are seriously affected, and in order to maintain the system performance, frequent shutdown is required and the membrane component is taken out from a treatment box to carry out chemical cleaning or physical flushing, so that the operation is tedious and time-consuming, the labor cost is increased, the membrane component is possibly damaged due to frequent disassembly and assembly, and the service life of the membrane component is shortened. Disclosure of utility model The technical problem to be solved by the present utility model is to overcome the disadvantages of the prior art and to provide a membrane bioreactor for sewage treatment which overcomes or at least partially solves the above problems. The membrane bioreactor for sewage treatment comprises a treatment box, a plate-frame membrane assembly, an air jet pipe, an air jet head, a blow-off pipe and a blow-off pipe, wherein the two sides of the upper end of the treatment box are fixedly connected with a water inlet pipe and a water outlet pipe respectively, the plate-frame membrane assembly is vertically arranged in the treatment box at equal intervals and positioned between the water inlet pipe and the water outlet pipe, the air jet pipe is arranged in the treatment box in a lifting mode and positioned at one side of the plate-frame membrane assembly close to a filtering surface, the air jet head is fixedly connected at equal intervals at one side of the air jet pipe close to the plate-frame membrane assembly, the blow-off pipe is fixedly connected at the lower end of one side of the treatment box, which is positioned at one side of the plate-frame membrane assembly close to the filtering surface, and the blow-off ports of the treatment box are respectively connected with the drainage ports of the adjacent blow-off pipes. Further, two guide rods are symmetrically and fixedly connected to positions, close to the air spraying pipes, in the treatment box, two sliding sleeves are symmetrically and fixedly connected to the air spraying pipes, the sliding sleeves are slidably connected to the guide rods, air spraying ports of the air spraying heads incline downwards to face the plate-frame type membrane assembly, and air conveying pipes are fixedly connected to air inlets of the air spraying pipes. Still further, the bottom fixedly connected with gas box of processing case, one side lower extreme fixedly connected with of processing case carries gaseous air pump in the gas box, the one end that the gas-supply pipe kept away from the gas-supply pipe downwardly extending in the gas inlet box, be linked together through the gas-supply pipe between gas-supply pipe and the gas box. In order to further improve the cleaning effect of the plate-and-frame type membrane assembly, the cleaning brush is fixedly connected to the lower side of the jet head on the jet pipe in a tilting manner, and the cleaning end of the cleaning brush is contacted with the filtering surface of the plate-and-frame type membrane assembly. In order to facilitate the inspection of the dirt condition of the plate-frame type membrane assembly, further, an observation window is fixedly connected to the treatment box. In order to facilitate the more convenient replacement of the plate-frame membrane assembly, further, the interlude mouth that uses with the cooperation of plate-frame membrane assembly is offered to the processing case upper end, the position department fixedly connected with that the plate-frame membrane assembly upper end exposes the perforating socket draws the handle. By adopting the technical scheme, the plate-frame type membrane module has the advantages that the plate-frame type membrane module can effectively intercept activated sludge and macromolecular organic matters, ensure that the discharged water achieves a better purifying effec