CN218290649U

CN218290649U - High-efficient MBBR water treatment facilities

Info

Publication number: CN218290649U
Application number: CN202222126474.3U
Authority: CN
Inventors: 周星; 周刚; 喻德敏; 文学; 周小兰
Original assignee: Chongqing Zhongshan Environmental Protection Technology Group Co ltd
Current assignee: Chongqing Zhongshan Environmental Protection Technology Group Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-13
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a high-efficiency MBBR water treatment device, which comprises a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, an ultraviolet disinfection area and a water outlet tank which are arranged in sequence; the pre-anoxic tank is filled with returned sludge, nitrate in the returned sludge is consumed in the pre-anoxic tank, and adverse influence of nitrate nitrogen on phosphorus removal of a subsequent anaerobic tank is eliminated, so that the stability and the phosphorus removal effect of the anaerobic tank are improved; the setting of ultraviolet device must be can carry out abundant processing to the waste gas in water and the device, and the structure of establishing ties has promoted treatment effeciency and treatment quality, uses the air stripping device in the return line, and wherein the air outlet duct of air stripping device and the aeration equipment intercommunication in the aerobic tank have practiced thrift the pipeline setting, just can realize backward flow and aeration respectively through the fan for the design is more reasonable, and its manufacturing cost is lower, is suitable for the popularization.

Description

High-efficient MBBR water treatment facilities

Technical Field

The utility model relates to a water treatment facilities technical field, concretely relates to high-efficient MBBR water treatment facilities.

Background

The integrated sewage treatment equipment in China starts late, but with the gradual improvement of environmental protection consciousness and environmental protection requirement in recent years, the integrated water treatment equipment develops rapidly, and the treatment process mainly comprises a biological rotating disc, SBR and A ² O, MBR, MBBR, and the like. The integrated treatment equipment is advocated due to the advantages of small occupied area, convenient management and operation, official networks saving and the like. However, there is a great need for improvement in view of the treatment efficiency of an existing facility as the environmental requirements increase.

In urban sewage treatment, on one hand, nitrate nitrogen enters an anaerobic tank during traditional process treatment, denitrification is carried out in the anaerobic tank, so that free oxygen is generated to destroy the anaerobic environment, denitrifying microorganisms compete for carbon sources required by phosphorus-releasing bacteria, and carbon sources in urban sewage are limited, which are not beneficial to phosphorus release of organisms in later processes; on the other hand, the ultraviolet treatment is only used as an auxiliary treatment means at the end of the traditional treatment, but a part of waste gas in the original sewage is generated, and a large amount of aerated gas enters the mixed liquid in the aerobic treatment process and generates certain waste gas (or odor) through the waste water, so that the simple ultraviolet treatment obviously cannot well treat the waste gas and the waste water; the ultraviolet treatment device is separately arranged, so that the cost is too high, the occupied volume is too large, and the maintenance is inconvenient; therefore, a water treatment device capable of treating water economically and efficiently is needed.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a high-efficient MBBR water treatment facilities to improve water treatment's quality, promote the treatment effeciency, reduce equipment cost.

In order to achieve the aim, the utility model provides a high-efficiency MBBR water treatment device, which comprises a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, an ultraviolet disinfection area and a water outlet tank which are arranged in sequence according to the sewage treatment process; the bottom of the sedimentation tank is communicated with a sludge return pipe, the sludge return pipe is communicated with the pre-anoxic tank, a mixed liquid return pipe is communicated between the aerobic tank and the anoxic tank, the pre-anoxic tank, the anaerobic tank and the anoxic tank are respectively communicated with a water inlet pipe through pipelines, and each pipeline is provided with an electromagnetic valve and an electromagnetic flowmeter; a biological membrane area is arranged in the aerobic tank, and an aeration device is arranged at the bottom of the biological membrane area; an ultraviolet disinfection device is arranged in the ultraviolet disinfection area and comprises a plurality of sections of ultraviolet lamp tubes which are vertically arranged and connected in series; one end of the ultraviolet lamp tubes connected in series is communicated with the sedimentation tank, the other end of the ultraviolet lamp tubes is communicated with the water outlet tank, and the water outlet tank is provided with a water outlet pipe.

According to the water treatment device, on one hand, the front end of the anaerobic tank is provided with the pre-anoxic tank, the pre-anoxic tank is filled with the returned sludge, nitrate in the returned sludge is consumed in the pre-anoxic tank, and the adverse effect of nitrate nitrogen on the phosphorus removal of the subsequent anaerobic tank is eliminated, so that the stability and the phosphorus removal effect of the nitrate nitrogen are improved; the microorganism directly enters the aerobic tank after dephosphorization, so that the phosphorus absorption power formed under the anaerobic condition can be better utilized; when sewage enters water, pipelines are respectively arranged in the pre-anoxic tank, the anaerobic tank and the anoxic tank, and the flow rate entering each tank is controlled by an electromagnetic valve and an electromagnetic flow meter, so that different water inlet ratios are achieved, and the high-efficiency TN \ TP removal efficiency under the condition of a low carbon source is met by controlling different water inlet ratios; on the other hand, be provided with the ultraviolet tube of series connection at the afterbody of this device, the ultraviolet tube of handling water through once circulating series connection has greatly improved for a long time in contact, makes gas and rivers abundant and ultraviolet contact reach the promotion to water quality treatment effect from this.

Furthermore, in order to ensure that the equipment design is more reasonable and more economical, the reflux is carried out through a gas device, wherein the sludge reflux pipe and the mixed liquid reflux pipe are respectively associated with a gas stripping device, the gas inlet pipe of the gas stripping device is respectively communicated with a fan, and the gas outlet pipe of the gas stripping device is communicated with the aeration device; the air outlet pipe of the air lifting device is communicated with the aeration device, so that the pipeline arrangement is saved, and the reflux and the aeration can be respectively realized through the fan, so that the design is more reasonable, and the manufacturing cost is lower.

This practicality has following beneficial effect at least:

1. the anaerobic tank is arranged at the front end of the anaerobic tank, and the anaerobic tank is communicated with a sludge return pipe connected with the sedimentation tank, so that the treatment quality and the treatment efficiency are improved.

2. The ultraviolet device can fully treat water and waste gas in the device, and the serial structure improves the treatment efficiency and treatment quality.

3. The arrangement of the air stripping device ensures that the whole equipment is economic and efficient, and saves the laying of pipelines.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a structural diagram of an MBBR water treatment apparatus according to an embodiment of the present invention;

FIG. 2 is a view showing the structure of the ultraviolet treatment apparatus of the present invention;

fig. 3 is a structural diagram of the gas device of the present invention.

In the attached drawing, the pre-anoxic tank 1, the anaerobic tank 2, the anoxic tank 3, the aerobic tank 4, the sedimentation tank 5, the equipment room 6, the ultraviolet disinfection area 7, the external channel 7-1, the ultraviolet lamp tube 7-2, the water outlet tank 8, the water inlet tube 9, the aeration device 10, the mixed liquid return tube 11, the sludge return tube 12, the air stripping device 13, the air stripping tank body 13-1, the material suction tube 13-2, the air inlet tube 13-3, the air outlet tube 13-4, the material discharge tube 13-5, the fan 14 and the power distribution system 15.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The utility model discloses a concrete embodiment does: an efficient MBBR water treatment device comprises a pre-anoxic tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4, a sedimentation tank 5, an ultraviolet disinfection zone 7 and a water outlet tank 8 which are arranged in sequence according to a sewage treatment process; the bottom of the sedimentation tank 5 is communicated with a sludge return pipe 12, the sludge return pipe 12 is communicated with the pre-anoxic tank 1, a mixed liquid return pipe 11 is communicated between the aerobic tank 4 and the anoxic tank 3, the pre-anoxic tank 1, the anaerobic tank 2 and the anoxic tank 3 are respectively communicated with a water inlet pipe 9 through pipelines, and each pipeline is provided with an electromagnetic valve and an electromagnetic flowmeter; an MBBR biomembrane region is arranged in the aerobic tank 4, and an aeration device 10 is arranged at the bottom of the MBBR biomembrane region; an ultraviolet disinfection device is arranged in the ultraviolet disinfection area 7 and comprises a plurality of sections of ultraviolet lamp tubes 7-2 which are vertically arranged and connected in series; one end of the ultraviolet lamp tube 7-2 connected in series is communicated with the sedimentation tank 5, the other end is communicated with the water outlet tank 8, and water is arranged on the water outlet tank 8; the sludge return pipe 12 and the mixed liquid return pipe 11 are respectively associated with an air lifting device 13, an air inlet pipe of the air lifting device 13 is respectively communicated with a fan 14, an air outlet pipe 13-4 of the air lifting device 13 is communicated with the aeration device 10, the tail end of the equipment is also provided with an equipment room 6, a power distribution system 15 and the fan 14 are installed in the equipment room 6, the fan 14 provides power for other devices, and the power distribution system 15 controls the opening and closing of each electromagnetic valve, and supplies electric energy to the ultraviolet lamp tube 7-2 and controls the opening and closing of the ultraviolet lamp tube.

In the above embodiment, the ultraviolet ray disinfection apparatus includes a plurality of external passages 7-1 connected in series, the external passages 7-1 are connected in series, the UV ultraviolet ray tubes 7-2 are disposed in the external passages 7-1, and each UV ultraviolet ray tube 7-2 is electrically connected to the power distribution system 15.

In the above embodiment, the stripping device 13 is a conventional stripping device 13, the stripping device 13 includes a stripping tank 13-1, a material suction pipe 13-2, a gas inlet pipe 13-3, a material discharge pipe 13-5, and a gas outlet pipe 13-4, water or sludge is sucked into the stripping tank 13-1 through the material suction pipe 13-2 and then discharged through the material discharge pipe 13-5, and the gas entered is discharged through the gas outlet pipe 13-4.

The overall flow of the above example is: sewage enters the pre-anoxic tank 1 through the water inlet pipe 9, the pre-anoxic tank 31 is communicated with the sedimentation tank 5, and sludge in the sedimentation tank 5 flows back into the pre-anoxic tank 1 to be mixed with the sewage, so that nitrate is completely consumed in the pre-anoxic tank 1; after the reaction is finished, the mixed water enters the anaerobic tank 2 from the pre-anoxic tank 1, the carbon source in the mixed water is adjusted in the anaerobic tank 2 through the water inlet pipe 9, so that efficient phosphorus release is realized, then the mixed water enters the anoxic tank 3 for denitrification reaction, then the mixed water flows into the aerobic tank 4, one part of the mixed water in the aerobic tank 4 enters the anoxic tank 3 through the return pipe, and meanwhile, the mixed water is fully aerated through the aeration pipe so that the mixed water and the filler are more fully mixed and contacted; flows into a sedimentation tank 5 through an aerobic tank 4 for sedimentation, and the settled treated water flows through an ultraviolet disinfection device for disinfection and then flows into a water outlet tank 8, and the treated water is discharged through the water outlet tank 8.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a high-efficient MBBR water treatment facilities which characterized in that: according to the sewage treatment process, the device comprises a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, an ultraviolet disinfection area and a water outlet tank which are arranged in sequence; the bottom of the sedimentation tank is communicated with a sludge return pipe, the sludge return pipe is communicated with the pre-anoxic tank, a mixed liquid return pipe is communicated between the aerobic tank and the anoxic tank, the pre-anoxic tank, the anaerobic tank and the anoxic tank are respectively communicated with a water inlet pipe through pipelines, and each pipeline is provided with an electromagnetic valve and an electromagnetic flowmeter; a biological membrane area is arranged in the aerobic tank, and an aeration device is arranged at the bottom of the biological membrane area; an ultraviolet disinfection device is arranged in the ultraviolet disinfection area and comprises a plurality of sections of ultraviolet lamp tubes which are vertically arranged and connected in series; one end of the ultraviolet lamp tube connected in series is communicated with the sedimentation tank, the other end of the ultraviolet lamp tube is communicated with the water outlet tank, and the water outlet tank is provided with a water outlet pipe.

2. The MBBR water treatment plant of claim 1, wherein: the sludge return pipe and the mixed liquid return pipe are respectively associated with the air lifting device, an air inlet pipe of the air lifting device is respectively communicated with the fan, and an air outlet pipe of the air lifting device is communicated with the aeration device.

3. The MBBR water treatment plant of claim 1, wherein: the biomembrane region is an MBBR biomembrane bed.

4. The MBBR water treatment plant of claim 1, wherein: still include the equipment room, install fan and distribution system in the equipment room.