CN207108602U - Facultative MBR integrated sewage treatment equipment - Google Patents

Abstract

The utility model provides facultative MBR integrated sewage treatment equipment, which comprises an anaerobic tank, a facultative tank and an MBR reaction tank which are communicated in sequence; a water inlet pipe, a water distribution pipe communicated with the water inlet pipe and an internally hung biological filler are arranged in the anaerobic tank; spherical suspension carriers are filled in the facultative tank; anaerobic bacteria or facultative bacteria grow in the spherical suspension carrier; good bacteria grow outside the spherical suspension carrier; an MBR membrane module is arranged in the MBR reaction tank. The facultative MBR integrated sewage treatment equipment combines a treatment method, a chemical method and a biological method in the specific practice of treating water body pollution, and fully considers the specific environment of the water body. Compared with the prior art, the facultative MBR integrated sewage treatment equipment only comprises the anaerobic tank, the facultative tank and the MBR tank, but does not comprise the aerobic tank, the process flow is simple, and the investment cost is reduced.

Description

Facultative MBR integrated sewage treatment equipment

technical field

The utility model relates to the technical field of water pollution control, in particular to an aerobic MBR integrated sewage treatment equipment.

Background technique

With the rapid economic development, the pollution of rivers, lakes and rivers has gradually increased. Wastewater discharged from factories and domestic sewage from nearby residents engulfed the beauty of the river. Rivers, lakes, and rivers, as the most important part of domestic drinking water, seriously pollute drinking water and aggravate the crisis of water resources in my country.

China is a water-scarce country, and sewage treatment and reuse are effective measures to develop and utilize water resources. Sewage reuse is to use urban sewage and industrial sewage for non-drinking purposes such as greening, flushing, and replenishment of ornamental water bodies after being treated by membrane bioreactors and other equipment, while using clean water for drinking and other high-quality water-required purposes. Urban sewage and industrial sewage are available nearby, which can avoid long-distance water transportation and realize the full utilization of water resources through nearby treatment. pollute groundwater sources. Sewage reuse has been widely used in many water-scarce areas in the world, and is considered the most practical technology for sewage treatment in the 21st century.

(Membrane Bio-Reactor, MBR) is a new type of wastewater treatment system that organically combines membrane separation technology and biological treatment technology. Replace the terminal secondary sedimentation tank of traditional biological treatment technology with membrane modules, maintain a high concentration of activated sludge in the bioreactor, increase the organic load of biological treatment, thereby reducing the footprint of sewage treatment facilities, and reduce the remaining sewage by maintaining low sludge load amount of mud. Mainly use the membrane separation equipment immersed in the aerobic biological tank to retain the activated sludge and macromolecular organic matter in the retention tank. The concentration of activated sludge (MLSS) in the membrane bioreactor system can be increased to 8000-10,000mg/L, or even higher; the sludge age (SRT) can be extended to more than 30 days.

Membrane bioreactor can retain microorganisms with a long generation cycle due to its effective interception, and can realize deep purification of sewage. At the same time, nitrifying bacteria can fully reproduce in the system, and its nitrification effect is obvious, providing possibility for deep phosphorus and nitrogen removal .

At present, MBR membrane integrated sewage treatment equipment is widely used to treat wastewater, and the effect is good, but the market and its related patents are all anaerobic-anoxic-aerobic-MBR membrane reactors, or other MBR combined processes. Using MBR combination process can reach the standard water.

But there is following objective shortcoming in prior art:

1. The MBR integrated equipment currently on the market not only has more equipment, but also has high energy consumption and complicated control;

2. The equipment is large in size and occupies a large area;

3. The noise generated by the blast aeration adopted by the aerobic MBR membrane process affects the surrounding residents.

Utility model content

In view of this, the technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide an aerobic MBR integrated sewage treatment equipment, including an anaerobic tank, a facultative tank, and an MBR reaction tank connected in sequence;

The anaerobic tank is provided with a water inlet pipe, a water distribution pipe connected with the water inlet pipe, and a biological filler hanging inside;

The facultative pool is filled with a spherical suspension carrier;

Anaerobic bacteria or facultative bacteria grow inside the spherical suspension carrier;

Good bacteria grow on the outside of the spherical suspension carrier;

The MBR reaction pool has a built-in MBR membrane module.

In some embodiments, the aerobic tank and the MBR reaction tank are separated by a partition provided with water holes, and the sewage from the aerobic tank and the MBR reaction tank communicate with each other;

The aperture of the water passage hole is not larger than the diameter of the spherical suspension carrier.

In some embodiments, a water distribution channel is provided between the anaerobic pool and the aerobic pool; two ends of the water distribution channel are respectively provided with water pipes; one of the water pipes communicates with the anaerobic pool , the other said water pipe communicates with said aerobic tank.

In some embodiments, the MBR reaction tank is provided with a suction pump, and the sewage is pumped out of the MBR reaction tank after the sewage is purified.

In some embodiments, it also includes an external microbubble generating system; the inlet pipe of the microbubble generating system is connected to the MBR reaction tank; the outlet pipe of the microbubble generating system is connected with a microbubble nozzle.

In some embodiments, the microbubble nozzle extends into the facultative oxygen tank and the MBR reaction tank.

In some embodiments, the micro-bubble nozzles are arranged horizontally or the nozzles are arranged facing upwards.

In some embodiments, the micro-bubble spray head is provided with an on-off valve.

In some embodiments, it also includes a clear water pool and/or a disinfection pool; after the sewage is purified, it is pumped out by the suction pump and discharged into the clear water pool.

In some embodiments, a disinfection tank is also included; after the sewage is purified, it is pumped out by the suction pump and discharged into the disinfection tank.

Compared with the prior art, the integrated sewage treatment equipment with aerobic MBR provided by the utility model has the following advantages:

The facultative MBR integrated sewage treatment equipment combines physical methods, chemical methods, and biological methods in the specific practice of water pollution control, fully considering the specific environment of the water body.

Compared with the existing technology, the facultative MBR integrated sewage treatment equipment only has anaerobic pond, facultative pond, and mbr pond, and there is no aerobic pond. The process flow is simple and the investment cost is reduced.

The anaerobic tank is uniformly distributed by water distribution pipes, with built-in biological fillers, and the sludge is not easy to settle. Anaerobic microbial strains use biological fillers as carriers to increase the volume load and increase the overall treatment load.

The aerobic tank is filled with a certain amount of spherical suspension carriers, which increases the biomass and biological species in the aerobic tank, thereby improving the treatment efficiency of the aerobic tank. Since the density of suspended filler in the facultative tank is close to that of water, it is completely mixed with water during aeration, and the environment for microbial growth is gas, liquid and solid. The collision and shearing action of the spherical suspension carrier in the water makes the air bubbles finer and increases the utilization rate of oxygen. In addition, each spherical suspension carrier has different biological species inside and outside, some anaerobic bacteria or facultative bacteria grow inside, and good bacteria grow outside, so that each spherical suspension carrier is a micro-reactor for nitrification and reaction. The nitrification reaction exists at the same time, thus improving the treatment effect.

Furthermore, the facultative tank and the mbr reaction tank are separated by a partition full of water holes, so that the sewage in the two pools can communicate with each other, and the spherical suspension carrier will not enter the MBR membrane module and damage the membrane module, and at the same time save Traditional sludge return reduces operating costs.

Further, the aeration of the aerobic tank and the MBR tank adopts a microbubble generation system and a specific microbubble nozzle jet aeration, and the tiny bubbles generated make the suspended filler in the aerobic tank in a fluidized state, and the generated tiny bubbles accelerate the MBR membrane module. Disturbance to purge the sludge of the MBR membrane module. Using the micro-bubble generation system to replace the traditional blower aeration not only reduces the operating cost, but also reduces the noise pollution.

Further, the facultative MBR integrated sewage treatment equipment can be used for a variety of industrial wastewater and domestic sewage. The facultative MBR integrated sewage treatment equipment includes anaerobic pools, facultative pools, and MBR membrane reaction pools. Subsequent additions of disinfection pools can be used treatment of hospital wastewater.

To sum up, the facultative MBR integrated sewage treatment equipment organically combines the effectiveness, long-term effect, economy and ecological compatibility of sewage treatment: it not only realizes the sustainable utilization of resources, but also has a long service life and simple maintenance ; Avoid repeated pollution, repeated treatment, and realize long-term benefits from one investment. And it is not affected by the shape of the water area, the depth, the underwater foundation, etc., the engineering volume is small, and the investment is low.

Description of drawings

It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. , other related drawings can also be obtained based on these drawings.

Figure 1 is a schematic plan view of an aerobic MBR integrated sewage treatment equipment;

Figure 2 is a schematic cross-sectional view of the facultative MBR integrated sewage treatment equipment.

name label Anaerobic pool 1 aerobic pool 2 MBR reaction pool 3 Inlet pipe 4 water distribution pipe 5 built-in biological filler 6 water pipe 7 distribution channel 8 spherical suspension carrier 9 Partition 10 MBR membrane module 11 Suction pump 12 microbubble generation system 13 Microbubble nozzle 14

Detailed ways

Hereinafter, various embodiments of the present disclosure will be described more fully with reference to the accompanying drawings. The present disclosure is capable of various embodiments, and adaptations and changes are possible therein. Accordingly, the present disclosure will be described in more detail with reference to specific embodiments illustrated in the accompanying drawings. It is to be understood, however, that there is no intention to limit the various embodiments of the present disclosure to the particular embodiments disclosed herein, but that the present disclosure be construed to cover those falling within the spirit and scope of various embodiments of the present disclosure. All adjustments, equivalents and/or alternatives. In conjunction with the description of the drawings, the same reference numerals designate the same elements.

Hereinafter, the terms "comprising" or "may include" that may be used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the existence of one or more functions, operations, or elements. Increase. In addition, as used in various embodiments of the present disclosure, the terms "comprising", "having" and their cognates are only intended to represent specific features, numbers, steps, operations, elements, components or combinations of the foregoing, And it should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or adding one or more features, numbers, steps, operations, elements, components or a combination of the foregoing possibilities.

In various embodiments of the present disclosure, the expression "or" or "at least one of A or/and B" includes any or all combinations of words listed at the same time. For example, the expression "A or B" or "at least one of A or/and B" may include A, may include B, or may include both A and B.

Expressions (such as 'first', 'second', etc.) used in various embodiments of the present disclosure may modify various constituent elements in various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and/or importance of the elements described. The above expressions are used only for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device indicate different user devices although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present disclosure.

It should be noted that if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and there may be "connection" between the first constituent element and the second constituent element. "The third component. Conversely, when one constituent element is "directly connected" to another constituent element, it can be understood that there is no third constituent element between the first constituent element and the second constituent element.

Terms used in various embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the various embodiments of the present disclosure. As used herein, singular forms are intended to include plural forms as well, unless the context clearly dictates otherwise. Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present disclosure belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, Unless clearly defined in various embodiments of the present disclosure.

Example

Referring to Fig. 1 to Fig. 2, in the embodiment of the utility model, a kind of facultative MBR integrated sewage treatment equipment is provided, including anaerobic pond 1, facultative pond 2, MBR reaction pond 3 connected in sequence;

The anaerobic tank 1 is provided with a water inlet pipe 4, a water distribution pipe 5 communicating with the water inlet pipe 4, and a biological filler 6 hanging inside;

The aerobic tank 2 is filled with a spherical suspension carrier 9;

Anaerobic bacteria or facultative bacteria grow inside the spherical suspension carrier 9;

Good bacteria grow on the outside of the spherical suspension carrier 9;

The MBR reaction tank 3 has a built-in MBR membrane module 11 .

In the embodiment of the present utility model, the aerobic tank 2 and the MBR reaction tank 3 are separated by a partition 10 provided with water holes, and the sewage in the aerobic tank 2 and the MBR reaction tank 3 communicate with each other;

The diameter of the water hole is not larger than the diameter of the spherical suspension carrier 9 .

As mentioned above, the facultative MBR integrated sewage treatment equipment combines physical methods, chemical methods, and biological methods in the specific practice of water pollution control, fully considering the specific environment of the water body.

Compared with the existing technology, the facultative MBR integrated sewage treatment equipment only has anaerobic pool 1, facultative pool 2, and mbr pond, without an aerobic pond. The process flow is simple and the investment cost is reduced.

The anaerobic tank 1 distributes water evenly through water distribution pipes, and has built-in biological fillers. The sludge is not easy to settle. The anaerobic microbial strains use biological fillers as carriers to increase the volume load and increase the overall treatment load.

The aerobic tank 2 is filled with a certain amount of spherical suspension carriers 9, which increases the biomass and biological species in the aerobic tank 2, thereby improving the treatment efficiency of the aerobic tank 2. Since the density of the suspended filler in the aerobic tank 2 is close to that of water, it is completely mixed with water during aeration, and the environment for microbial growth is gas, liquid and solid. The collision and shear action of the spherical suspension carrier 9 in water makes the air bubbles finer and increases the utilization rate of oxygen. In addition, each spherical suspension carrier 9 has different biological species inside and outside, and some anaerobic bacteria or facultative bacteria grow inside, and the outside is good bacteria, so that each spherical suspension carrier 9 is a micro-reactor for nitrification reaction. And the denitrification reaction exists simultaneously, thus improving the treatment effect.

In the embodiment of the utility model, a water distribution channel 8 is provided between the anaerobic pool 1 and the anaerobic pool 2; the two ends of the water distribution channel 8 are respectively provided with water pipes 7; one of the water pipes 7 communicates with the anaerobic tank 1, and the other water pipe 7 communicates with the aerobic tank 2.

In the embodiment of the present utility model, the MBR reaction tank 3 is provided with a suction pump 12, and the MBR reaction tank 3 is pumped out by the suction pump 12 after the sewage is purified.

In the embodiment of the present utility model, it also includes an external micro-bubble generating system 13; the water inlet pipe 4 of the micro-bubble generating system 13 is connected to the MBR reaction tank 3; the outlet pipe of the micro-bubble generating system 13 is connected with micro-bubble Nozzle14.

In the embodiment of the present utility model, the microbubble nozzle 14 extends into the aerobic tank 2 and the MBR reaction tank 3 .

In the embodiment of the present utility model, the micro-bubble nozzle 14 is arranged horizontally or the nozzle is arranged upward.

In the embodiment of the present utility model, the micro-bubble nozzle 14 is provided with an on-off valve.

In the embodiment of the utility model, it also includes a clear water pool and/or a disinfection pool; after the sewage is purified, it is pumped out by the suction pump 12 and discharged into the clear water pool.

In the embodiment of the utility model, a disinfection pool is also included; after the sewage is purified, it is pumped out by the suction pump 12 and discharged into the disinfection pool.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. Facultative MBR integrated sewage treatment equipment, characterized in that: it includes an anaerobic pool, a facultative pool, and an MBR reaction pool connected in sequence; The anaerobic tank is provided with a water inlet pipe, a water distribution pipe connected with the water inlet pipe, and a biological filler hanging inside; The facultative pool is filled with a spherical suspension carrier; Anaerobic bacteria or facultative bacteria grow inside the spherical suspension carrier; Good bacteria grow on the outside of the spherical suspension carrier; The MBR reaction pool has a built-in MBR membrane module. 2. The multi-oxygen MBR integrated sewage treatment equipment as claimed in claim 1, characterized in that: the multi-oxygen tank is separated from the MBR reaction tank by a dividing plate provided with water holes, and the sewage from the multi-oxygen tank is separated from the The sewage in the MBR reaction pool flows through each other; The aperture of the water passage hole is not larger than the diameter of the spherical suspension carrier. 3. The multi-aerobic MBR integrated sewage treatment equipment as claimed in claim 1, characterized in that: a water distribution channel is provided between the anaerobic tank and the anaerobic tank; Water pipes; one of the water pipes communicates with the anaerobic pool, and the other water pipe communicates with the facultative pool. 4. The facultative MBR integrated sewage treatment equipment as claimed in claim 1, characterized in that: the MBR reaction tank is provided with a suction pump, and the sewage is pumped out of the MBR reaction tank after the sewage is purified. 5. The multi-oxygen MBR integrated sewage treatment equipment as claimed in claim 1 is characterized in that: it also includes an external micro-bubble generation system; the water inlet pipe of the micro-bubble generation system is connected to the MBR reaction tank; the micro-bubble generation system The outlet pipe of the generating system is connected with a micro-bubble nozzle. 6. The facultative MBR integrated sewage treatment equipment as claimed in claim 5, characterized in that: the microbubble nozzle extends into the facultative pool and the MBR reaction pool. 7. The aerobic MBR integrated sewage treatment equipment according to claim 6, characterized in that: the micro-bubble nozzles are arranged horizontally or the nozzles are arranged facing upwards. 8. The facultative MBR integrated sewage treatment equipment as claimed in claim 7, characterized in that: the micro-bubble nozzle is provided with an on-off valve. 9. The facultative MBR integrated sewage treatment equipment as claimed in claim 4, characterized in that: it also includes a clear water pool and/or a disinfection pool; after the sewage is purified, it is pumped out by the suction pump and discharged into the clear water pool. 10. The facultative MBR integrated sewage treatment equipment according to claim 4, characterized in that it further comprises a disinfection pool; after the sewage is purified, it is pumped out by the suction pump and discharged into the disinfection pool.