CN220723852U

CN220723852U - Integrated MBR sewage treatment device

Info

Publication number: CN220723852U
Application number: CN202321961923.4U
Authority: CN
Inventors: 周鑫华; 武玉萍
Original assignee: Daqing Xinzheng Technology Development Co ltd
Current assignee: Daqing Xinzheng Technology Development Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-04-05
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses an integrated MBR sewage treatment device which comprises a total water inlet, a basket type filter, a reaction area, an equipment room and a device total outlet, wherein the reaction area is sequentially divided into an adjusting tank, an anoxic tank, an MBR tank and a clean water tank, the inlet of the adjusting tank is the device total inlet and is connected with a domestic sewage drainage pipeline through a pipeline, the basket type filter is arranged at the inlet end of the adjusting tank and is connected with the device total inlet, domestic sewage enters the adjusting tank after being filtered by the basket type filter, a first flow baffle is arranged between the adjusting tank and the anoxic tank, an overflow hole is arranged at the bottom of the flow baffle, a second flow baffle is arranged between the anoxic tank and the MBR tank, a third flow baffle is arranged between the MBR tank and the clean water tank, two groups of membrane components are arranged in the MBR tank, a sludge sedimentation tank is arranged at the lower side of the membrane components, a hole aerator is arranged between the lower part of the membrane components and the sludge sedimentation tank, and a water outlet pipe of the membrane components is connected with a water producing pump inlet. The application adopts the built-in curtain type membrane component, and has the advantages of high filtering precision, strong anti-pollution capability, excellent water quality of produced water and stable performance.

Description

Integrated MBR sewage treatment device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an integrated MBR sewage treatment device.

Background

An integrated MBR sewage treatment device is an auxiliary device for sewage treatment, and is widely used in the field of sewage treatment; at present, MBR fully plays the characteristic of membrane filtration and is mostly operated under the conditions of long sludge age and high activated sludge concentration, but in the aerobic MBR system, not only the oxygen transfer efficiency is limited, but also the membrane is easy to pollute, and the membrane flux is not high. How to reduce sludge age, reduce sludge concentration, increase membrane flux, reduce membrane material cost and reduce requirements on oxygen transfer equipment without increasing the volume of the bioreactor is a problem which needs to be solved urgently in the design and manufacture of the integrated MBR sewage treatment device at present.

Disclosure of Invention

An object of the present application is to provide an integrated MBR sewage treatment device, so as to solve the problem set forth in the above background technology.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides an integration MBR sewage treatment plant, includes total water inlet, basket filter, reaction zone, between equipment and device total outlet, the reaction zone be located inside the device, from left to right cut apart into equalizing basin, anoxic tank, MBR pond and clean water basin in proper order, the equalizing basin import be device total inlet and be connected with domestic sewage drainage pipe through the pipeline, basket filter establishes the equalizing basin entrance point and the total access connection of device at, domestic sewage gets into the equalizing basin after filtering through basket filter, equalizing basin and anoxic tank between be equipped with first baffle, baffle bottom is equipped with the overflow aperture, anoxic tank and MBR pond between be equipped with the second baffle, MBR pond and clean water basin between be equipped with the third baffle, MBR pond in be equipped with two sets of membrane module, its downside is equipped with the mud sedimentation tank, be equipped with the micropore aerator between membrane module outlet pipe and the mud sedimentation tank, the water pump sets up between the equipment, the outlet pipe of water pump gets into the clean water basin, clear water basin and device total outlet connection, anoxic tank and MBR pond are equipped with the back flow.

Preferably, be equipped with electric cabinet, air-blower, produce water pump, backwash pump, dosing barrel, dosing pump and ground escape canal in the equipment room, wherein the air-blower be used for to MBR membrane reaction zone aeration, produce the water pump be used for taking away the water that has handled in the membrane reaction zone, backwash pump be used for following clean water basin and draw water and wash the blocking membrane module, dosing barrel be used for dissolving and storage device operation and washing the used medicament, dosing pump be used for carrying the medicament pressure boost of dosing barrel to appointed dosing point, ground escape canal be used for discharging ground ponding, be equipped with the aeration pipeline between fan and the membrane reaction zone, be equipped with the water pumping pipeline between membrane module and the production pump, be equipped with the backwash pipeline between membrane module and the backwash pump, be equipped with the dosing pipeline between dosing barrel, dosing pump and the dosing point.

Preferably, the top of the regulating tank, the top of the MBR tank and the top of the clean water tank are respectively provided with a manhole for overhauling and replacing parts.

Preferably, the regulating tank, the anoxic tank, the MBR tank and the clean water tank are all provided with sewage outlets.

Preferably, the anoxic tank, the MBR tank and the clean water tank are all provided with top-loading static pressure liquid level meters.

Preferably, two groups of membrane assemblies are arranged in the MBR tank, are all built-in curtain type membrane assemblies, are made of hollow fibers, and are connected with the water producing pump inlet, and the treated water in the membrane reaction zone is pumped away by utilizing the negative pressure of the water producing pump inlet.

Preferably, the clean water tank is internally provided with a dosing point.

Preferably, a dosing point of the medicament required for cleaning the membrane assembly is arranged in the MBR tank, and the chemical enhanced backwashing is set for reducing membrane pollution accumulated in a plurality of water making cycles.

Preferably, a sludge return pipe is arranged between the anoxic tank and the MBR tank, the sludge return is completed in a gas stripping mode, a gas source for sludge stripping is provided by a blower, and a branch pipe is separated from an aeration main pipe to provide gas for a gas stripping system.

In summary, the utility model has the technical effects and advantages that:

1. the utility model provides an integration MBR sewage treatment plant sets up equipment room and equalizing basin, anoxic tank, MBR pond, clean water basin as an organic whole, need not to build in addition and prepares the room, and the cost is reduced, and the equipment room is isolated independently, is convenient for equipment maintenance.

2. The integrated MBR sewage treatment device utilizes a curtain type hollow fiber membrane component to replace a traditional biological reaction tank and a secondary sedimentation tank, and sewage permeates hollow fiber membrane wires with the aperture of 0.03-0.2m in the MBR tank, so that bacteria, most suspended matters and viruses are trapped; thereby greatly increasing the concentration of the activated sludge, enabling the biochemical reaction for degrading sewage to be carried out more rapidly and thoroughly, leading the sludge of the sludge to be longer and greatly reducing the sludge yield; the water quality of the effluent water filtered by the high-precision hollow fiber membrane is comprehensively superior to the water quality standard of the domestic miscellaneous water.

3. The utility model provides an integration MBR sewage treatment plant MBR pond internal maintenance high concentration biomass and longer biosolid average residence time have greatly improved the degradation rate of biology to the organic matter, can reach the advanced treatment requirement even, and the surplus mud is hardly arranged to the system simultaneously, and the MBR pond is because of its effectual interception, can remain the microorganism that the generation cycle is longer, can realize sewage deep purification, and nitrifying bacteria can fully reproduce in the system simultaneously, and its nitrification effect is obvious, provides probably to degree of depth dephosphorization denitrogenation.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an integrated MBR sewage treatment device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a membrane module of an integrated MBR wastewater treatment device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of pipeline connection of an integrated MBR wastewater treatment device according to an embodiment of the present application;

fig. 4 is a process flow diagram of an integrated MBR sewage treatment device according to an embodiment of the present application.

In the figure: 1-total water inlet, 2-basket filter (2), 3-manhole, 4-anoxic tank drain, 5-tap water inlet, 6-regulating tank drain, 7-MBR tank drain, 8-regulating tank, 9-first baffle, 10-anoxic tank top static pressure level gauge, 11-anoxic tank, 12-sludge return pipe, 13-second baffle, 14-MBR tank, 15-membrane module, 16-MBR tank top static pressure level gauge, 17-aeration pipeline, 18-water pumping pipeline, 19-clean water tank top static pressure level gauge, 20-backwash pipeline, 21-dosing pipeline, 22-sedimentation tank, 23-clean water tank drain, 24-microporous aerator, 25-third baffle, 26-clean water tank, 27-equipment room, 28-dosing barrel, 29-pump, 30-blower, 31-water producing pump, 32-ground medicine drain, 33-electric control box, 34-device total outlet, 35-dosing pump, 36-tank dosing point, 37-membrane module cleaning and 38-dosing point of membrane module cleaning and 1-membrane module cleaning.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-4, an integrated MBR sewage treatment device is shown, including total water inlet 1, basket filter 2, reaction zone, equipment room 27 and device total outlet 34, the reaction zone be located the device inside, from left to right cut apart into equalizing basin 8, anoxic tank 11, MBR pond 14 and clean water basin 26 in proper order, equalizing basin 8 import be device total water inlet 1 and be connected with domestic sewage drainage pipe through the pipeline, basket filter 2 establishes at equalizing basin 8 entrance end and device total inlet 1 connection, domestic sewage gets into equalizing basin 8 after the filtration of basket filter 2, equalizing basin 8 and anoxic tank 11 between be equipped with first baffle 9, baffle bottom be equipped with the overflow aperture, anoxic tank 11 and MBR pond 14 between be equipped with second baffle 13, MBR pond 14 and clean water basin 26 between be equipped with third baffle 25, MBR pond 14 in be equipped with two sets of membrane module 15, its downside is equipped with mud sedimentation tank 22, be equipped with microporous membrane module 24 and mud sedimentation tank 22 between membrane module 15 below and mud sedimentation tank 22, the outlet pipe 31 of producing aeration membrane module and the device 31 and the clean water basin 14 are in the outlet pipe room 31 is equipped with the outlet pipe room of the clean water basin 12, the outlet pipe room 31 is connected with the equipment room of the clean water basin 12.

The utility model provides an integration MBR sewage treatment plant utilizes the high-efficient separation effect of membrane, separation effect is far better than traditional sedimentation tank, it is extremely clear to handle the play water, suspended solid and turbidity are close to zero, bacterium and virus are got rid of by a wide margin, it is high-quality stable to go out water quality, this technology can be operated under high volume load, because the interception of MBR membrane tank inner membrane, once surplus sludge output is extremely low, sludge treatment expense has been reduced, the microorganism volume of high concentration can be kept in the MBR pond, processing apparatus volume load is high, area is little, this technological process is simple, compact structure, not restricted by the setting place, be fit for any occasion, because microorganism is held back in the bioreactor completely, thereby be favorable to the interception growth of proliferation slow microorganism such as nitrifying bacteria, system nitrification efficiency can be improved, can increase the hydraulic retention time of some difficult degradation organics in the system simultaneously, be favorable to the improvement of difficult degradation organic matter degradation efficiency, high-efficient solid-liquid separation is with suspended solid in the sewage, colloid material, the microorganism flora that biological unit runs off with the water that has been purified, consequently, it can directly to reuse through deep treatment.

In one embodiment of the present application, as shown in fig. 1, 3 and 4, an electric cabinet 33, a blower 30, a water producing pump 31, a backwash pump 29, a dosing barrel 28, a dosing pump 35 and a ground drainage ditch 32 are disposed in the equipment room 27, wherein the blower 30 is used for aerating the membrane reaction area of the MBR pool 14, the water producing pump 31 is used for pumping away the treated water in the membrane reaction area, the backwash pump 29 is used for flushing the blocking membrane assembly 15 from the clean water pool 26, the dosing barrel 28 is used for dissolving and storing the medicament used for running and cleaning the device, the dosing pump 35 is used for pressurizing and conveying the medicament of the dosing barrel 28 to a designated dosing point, the ground drainage ditch 32 is used for discharging the ground water, an aeration pipeline 17 is disposed between the blower 30 and the membrane reaction area, a water pumping pipeline 18 is disposed between the membrane assembly 15 and the water producing pump 31, a backwash pipeline 20 is disposed between the membrane assembly 15 and the pump 29, and a dosing pipeline 21 is disposed between the dosing barrel, the dosing pump and the dosing point.

In one embodiment of the present application, as shown in fig. 1, the top of the conditioning tank 8, the MBR tank 14 and the clean water tank 26 are provided with manholes 3 for maintenance and replacement of components.

In one embodiment of the present application, as shown in fig. 1, the regulating tank 8, the anoxic tank 11, the MBR tank 14 and the clean water tank 26 are all provided with a sewage outlet for evacuating internal liquid or sludge and impurities, wherein the regulating tank 8 is provided with the sewage outlet 6, the anoxic tank 11 is provided with the sewage outlet 4, the MBR tank 14 is provided with the sewage outlet 7, and the clean water tank 26 is provided with the sewage outlet 23.

In one embodiment of the present application, as shown in fig. 1, the anoxic tank 11, the MBR tank 14 and the clean water tank 26 are all provided with top-loading static pressure liquid level meters for monitoring the liquid level change in each tank, wherein the anoxic tank 11 is provided with a top-loading static pressure liquid level meter 10, the MBR tank 14 is provided with a top-loading static pressure liquid level meter 16, and the clean water tank 26 is provided with a top-loading static pressure liquid level meter 19.

In an embodiment of the present application, as shown in fig. 1, 2 and 3, two groups of membrane modules 15 are disposed in the MBR tank 14, and are all built-in curtain-type membrane modules, and are made of hollow fibers, the water producing pipe 18 is connected with the inlet of the water producing pump 31, and the treated water in the membrane reaction zone is pumped away by using the negative pressure of the inlet of the water producing pump 31, so that the curtain-type membrane modules 15 have good interception effect, long microorganism generation period and high water quality. The integrated MBR sewage treatment device has the advantages that the removal rate of pollutants is high, the sludge expansion resistance is high, the quality of effluent is stable and reliable, and suspended matters in the effluent are avoided; the membrane bioreactor achieves thorough separation of the reactor sludge age SRT and the hydraulic retention time HRT, greatly simplifying design and operation. The mechanical interception of the membrane avoids the loss of microorganisms, and the high sludge concentration can be maintained in the bioreactor, so that the volume load is improved, and the sludge load is reduced. Meanwhile, the MBR technology omits a secondary sedimentation tank, and the occupied area is greatly reduced. Because the SRT is very long, the membrane bioreactor also plays a role of a sludge nitrification tank, thereby remarkably reducing the sludge yield and reducing the cost of sludge treatment. The SRT is prolonged due to the interception effect of the membrane, so that an environment which is favorable for slow proliferation of microorganisms and growth of nitrifying bacteria is created, the nitrifying capacity of the system can be improved, and meanwhile, the degradation-resistant macromolecular organic matters can be improved.

In one embodiment of the present application, as shown in fig. 1, the device integrates the equipment room 27, the regulating tank 8, the anoxic tank 11, the MBR tank 14 and the clean water tank 26, so that no additional backup room is needed, the cost is reduced, the equipment room is isolated independently, and the equipment maintenance is facilitated.

In one embodiment of the present application, as shown in fig. 1, 3 and 4, the clean water tank 26 is provided with a dosing point 36, and the dosing barrel 28 and the dosing pump 35 are used for dosing disinfectant to disinfect and kill toxic bacteria, remove chromaticity, and stay or directly discharge after various water quality indexes reach standards.

In one embodiment of the present application, as shown in fig. 1, 3 and 4, the MBR tanks 14 are provided with dosing points 37 and 38 for the chemicals required for cleaning the membrane modules 15, and the chemical enhanced backwash is set to reduce membrane pollution accumulated in a plurality of water producing cycles. And adding acid or oxidant into the inner side of the membrane wire in the backwashing process, soaking the membrane unit, and stopping aeration of the membrane unit when all pumps and valves are in a closed state.

In one embodiment of the present application, as shown in fig. 1, 3 and 4, a sludge return pipe 12 is disposed between the anoxic tank 11 and the MBR tank 14, and a gas stripping mode is adopted to complete sludge return, and a gas source for sludge stripping is provided by a blower, and a branch pipe is separated from an aeration main pipe to supply gas for the gas stripping system.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides an integration MBR sewage treatment plant, its characterized in that includes total water inlet, basket filter, reaction zone, equipment room and device total outlet, the reaction zone be located inside the device, from left to right cut apart into equalizing basin, anoxic tank, MBR pond and clean water basin in proper order, the equalizing basin import be device total inlet and be connected with domestic sewage drainage pipe through the pipeline, basket filter establishes at equalizing basin entrance end and device total inlet connection, domestic sewage gets into the equalizing basin after the basket filter filters, equalizing basin and anoxic tank between be equipped with first baffle, baffle bottom is equipped with the overflow aperture, anoxic tank and MBR pond between be equipped with the second baffle, MBR pond and clean water basin between be equipped with the third baffle, the MBR pond in be equipped with two sets of membrane module, its downside is equipped with the mud sedimentation tank, be equipped with the micropore ware between membrane module outlet pipe and the product water pump import connection between the membrane module, the outlet pipe of product water pump sets up equipment room, the outlet pipe of product water pump get into clean water basin, the back flow outlet and the device is equipped with the anoxic tank and the MBR pond between.

2. An integrated MBR sewage treatment device according to claim 1, wherein: be equipped with electric cabinet, air-blower, produce water pump, backwash pump, dosing barrel, dosing pump and ground escape canal in the equipment room, wherein the air-blower be used for to MBR membrane reaction zone aeration, produce the water pump be used for taking away the water that has handled in the membrane reaction zone, backwash pump be used for following clean water basin water pumping and wash the blocking membrane module, dosing barrel be used for dissolving and storage device operation and the used medicament of wasing, dosing pump be used for carrying the medicament pressure boost of dosing barrel to appointed dosing point, ground escape canal be used for discharging ground ponding, be equipped with the aeration pipeline between air-blower and the membrane reaction zone, be equipped with the water pumping pipeline between membrane module and the production pump, be equipped with the backwash pipeline between membrane module and the backwash pump, be equipped with the dosing pipeline between dosing barrel, dosing pump and the dosing point.

3. An integrated MBR sewage treatment device according to claim 1, wherein: and manholes are formed in the tops of the regulating tank, the MBR tank and the clean water tank and are used for overhauling and replacing parts.

4. An integrated MBR sewage treatment device according to claim 1, wherein: and the regulating tank, the anoxic tank, the MBR tank and the clean water tank are all provided with sewage outlets.

5. An integrated MBR sewage treatment device according to claim 1, wherein: the anoxic tank, the MBR tank and the clean water tank are all provided with top-loading static pressure liquid level meters.

6. An integrated MBR sewage treatment device according to claim 1, wherein: and two groups of membrane assemblies are arranged in the MBR tank, are built-in curtain type membrane assemblies, are hollow fibers, and are connected with a water production pipe through a water production pump inlet, and the treated water in the membrane reaction zone is pumped away by utilizing the negative pressure of the water production pump inlet.

7. An integrated MBR sewage treatment device according to claim 1 or 2, characterized in that: the clean water tank is internally provided with a dosing point.

8. An integrated MBR sewage treatment device according to claim 1 or 2, characterized in that: the MBR tanks are internally provided with dosing points for dosing agents required by cleaning the membrane components, and the chemical enhanced backwashing is set for reducing membrane pollution accumulated in a plurality of water making periods.

9. An integrated MBR sewage treatment device according to claim 1 or 2, characterized in that: and a sludge return pipe is arranged between the anoxic tank and the MBR tank, the sludge return is completed in a gas stripping mode, a gas source for gas stripping of the sludge is provided by a blower, and a branch pipe is separated from an aeration main pipe to supply gas for the gas stripping system to extract the sludge.