CN205275305U - Membrane bioreactor - Google Patents

Abstract

The utility model provides a membrane biological reaction device, which not only has a reasonable design and a simple structure, but also the membrane components are not easy to be blocked, and the effluent quality is good. A membrane bioreactor, comprising a regulating tank, anaerobic-anoxic-aerobic pool and a clear water pool, a submersible pump is arranged in the regulating pool, and the outlet end of the submersible pump is connected to the anaerobic-anoxic-aerobic pool through a pipeline, and the anaerobic-anoxic-oxic pool is connected to the anaerobic-anoxic-oxic pool. The pool is divided into anaerobic zone, anoxic zone and aerobic zone by partition boards. The anoxic zone and the bottom of the aerobic zone are equipped with a plurality of aeration heads connected with fans, and the aerobic zone is equipped with mounting seats and multiple membranes. There is a rotating structure at the bottom of the mounting seat, the upper part of the mounting seat is connected to the membrane module through the lifting mechanism, the upper part of the membrane module is connected to the cleaning water tank through the pipeline, and the water outlet of the membrane module is connected to the water inlet of the self-priming pump, and the water outlet of the self-priming pump is connected to clean water pool.

Description

Membrane bioreactor

technical field

The utility model relates to a sewage treatment device, in particular to a membrane biological reaction device.

Background technique

With the rapid development of modern industry and the continuous expansion of city scale, the amount of water and waste water in cities is increasing, resulting in increasingly insufficient urban water resources and deteriorating water quality. In order to solve this problem, many countries in the world have successively carried out research on wastewater recycling. Among them, the most active research is the use of aerobic membrane-bioreactors to treat urban wastewater and regenerate it.

Membrane bioreactor, which combines membrane separation technology with traditional biological treatment, is mainly used in the field of sewage treatment. It mainly replaces the secondary sedimentation tank in traditional biological treatment with membrane modules (hollow fiber membranes), and uses membrane modules Solid-liquid separation is carried out, the activated sludge is retained in the reactor, and the effluent from the membrane module can be reused or discharged. The removal mechanism of organic pollutants is shown in: In addition to the traditional biochemical removal of activated sludge, the more efficient removal lies in the membrane filtration technology and the biological action of the filter cake layer with complex biodistribution attached to the membrane surface . On the one hand, membrane filtration solves the disadvantages of the traditional biological treatment method that the separation of mud and water is not complete only by gravity settlement, and the effluent still brings out a large amount of suspended solids; at the same time, the membrane retains microorganisms and avoids the loss of active microorganisms caused by mud and water separation. But now the membrane modules of membrane bioreactors are easy to clog, resulting in low quality of effluent.

Utility model content

The purpose of the utility model is to provide a membrane biological reaction device, which not only has a reasonable design and a simple structure, but also the membrane components are not easy to be blocked, and the effluent water quality is good.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A membrane bioreactor, comprising a regulating tank, an anoxic-anoxic-aerobic pool and a clear water pool, a submersible pump is arranged in the regulating pool, and the outlet end of the submersible pump is connected to the anaerobic-anoxic-aerobic pool through a pipeline, and the anaerobic-anoxic-aerobic pool is connected to the anaerobic-anoxic-oxic pool. The pool is divided into anaerobic zone, anoxic zone and aerobic zone by partition boards. The anoxic zone and the bottom of the aerobic zone are equipped with a plurality of aeration heads connected with fans, and the aerobic zone is equipped with mounting seats and multiple membranes. There is a rotating structure at the bottom of the mounting seat, the upper part of the mounting seat is connected to the membrane module through the lifting mechanism, the upper part of the membrane module is connected to the cleaning water tank through the pipeline, and the water outlet of the membrane module is connected to the water inlet of the self-priming pump, and the water outlet of the self-priming pump is connected to clean water pool.

In the membrane bioreactor, the rotating structure includes a rotating motor installed at the bottom of the aerobic zone and a shaft sleeve fitted on the shaft of the rotating motor, and the shaft sleeve is integrally connected with the mounting base.

In the membrane bioreactor, the lifting mechanism is a cylinder, the cylinder block is installed on the base, and the cylinder rod of the cylinder is connected with the membrane module.

In the membrane bioreactor, it also includes a disinfection device communicated with the clear water pool.

The beneficial effects of the utility model:

With the above structure, the anaerobic, aerobic, and membrane separation structures are integrated, which improves the transfer efficiency of oxygen; the membrane module is not easy to be blocked through the cooperation of the rotating structure and the lifting mechanism, which reduces membrane pollution and saves costs, and is equipped with a disinfection device. Use good water quality.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model.

In the figure 1. Regulating tank, 2. Submersible pump, 3. Anaerobic zone, 4. Anoxic zone, 5. Aerobic zone, 6. Cylinder, 7. Shaft sleeve, 8. Rotating motor, 9. Mounting seat, 10 .Self-priming pump, 11. Clear water tank, 12. Fan, 13. Cleaning water tank, 14. Disinfection device, 15. Membrane module.

detailed description

In combination with the accompanying drawings in the embodiments of the utility model, the utility model is further clearly and completely described, and the described embodiments are only a part of the embodiments of the utility model, rather than all embodiments.

A membrane bioreactor, comprising a regulating tank 1, an anoxic-anoxic-aerobic pool and a clear water pool, a submersible pump 2 is arranged in the regulating pool 1, and the water outlet of the submersible pump 2 is connected to the anaerobic-anoxic-aerobic pool through a pipeline, and the anaerobic-anoxic-aerobic pool is The oxygen-anoxic-aerobic pool is divided into anaerobic zone 3, anoxic zone 4 and aerobic zone 5 through partitions, and the bottoms of anoxic zone 4 and aerobic zone 5 are provided with a plurality of aeration heads connected with fan 12, so that The oxygen zone 5 is provided with a mounting seat 9 and a plurality of membrane modules 15, the bottom of the mounting seat 9 is provided with a rotating structure, the upper part of the mounting seat 9 is connected with a membrane module 15 through a lifting mechanism, and the top of the membrane module 15 is connected with a cleaning water tank 13 through a pipeline, and The water outlet end of the membrane module is connected to the water inlet end of the self-priming pump 10 , and the water outlet end of the self-priming pump 10 is connected to the clean water pool 11 .

In this embodiment, the rotating structure includes a rotating motor 8 installed at the bottom of the aerobic zone 5 and a bushing 7 fitted on the shaft of the rotating motor 8 , and the bushing 7 is integrally connected with the mounting base 9 .

In this embodiment, the lifting mechanism is the cylinder 6, the body of the cylinder 6 is installed on the base, and the cylinder rod of the cylinder 6 is connected with the membrane assembly.

In this embodiment, it also includes a disinfection device 14 communicating with the clean water pool 11 .

The above only describes the basic principle and preferred implementation of the utility model, and those skilled in the art can make many changes and improvements according to the above description, and these changes and improvements should belong to the protection scope of the utility model.

Claims (4)

1. a kind of membrane bioreactor, it is characterized in that: comprise adjustment pool, anaerobic anoxic aerobic pool and clear water pool, be provided with submersible pump in the adjustment pool, submersible pump water outlet is connected anaerobic anoxic aerobic pool through pipeline, The anaerobic-anoxic-aerobic pool is divided into anaerobic zone, anoxic zone and aerobic zone through the partition board. There are multiple aeration heads connected with fans at the bottom of the anoxic zone and aerobic zone. In the aerobic zone, there are The mounting base and multiple membrane modules, the bottom of the mounting base is provided with a rotating structure, the upper part of the mounting base is connected to the membrane module through the lifting mechanism, the upper part of the membrane module is connected to the cleaning water tank through the pipeline, and the outlet end of the membrane module is connected to the water inlet end of the self-priming pump. The outlet end of the suction pump is connected to the clear water pool. 2. according to the described membrane bioreactor of claim 1, it is characterized in that: rotating structure comprises the rotating motor that is installed on the bottom of aerobic zone and the axle sleeve that is sleeved on the axle body of rotating electrical machine, and axle sleeve is connected as a whole with mounting seat . 3. The membrane bioreactor according to claim 1, characterized in that: the lifting mechanism is a cylinder, the cylinder block is installed on the base, and the cylinder rod of the cylinder is connected with the membrane assembly. 4. according to claim 1 or 2 or 3 described membrane bioreactors, it is characterized in that: it also comprises the disinfection device that is communicated with clear water pool.