CN216005563U - Integrated sewage treatment device of multiple mud membrane coupling membrane bioreactor - Google Patents
Integrated sewage treatment device of multiple mud membrane coupling membrane bioreactor Download PDFInfo
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- CN216005563U CN216005563U CN202122345753.4U CN202122345753U CN216005563U CN 216005563 U CN216005563 U CN 216005563U CN 202122345753 U CN202122345753 U CN 202122345753U CN 216005563 U CN216005563 U CN 216005563U
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Abstract
The utility model discloses a multiple sludge membrane coupling membrane bioreactor integration sewage treatment plant, the device includes the box, in advance anoxic section, anaerobic section, anoxic section, aerobic section, membrane bioreactor district, water intake pipe, play water self priming pump/vacuum pump, mud backwash pump and row's mud mouth, be equipped with the anoxic section in advance, anaerobic section, anoxic section, aerobic section and the membrane bioreactor district that separate each other in the box. The device adds the pre-anoxic section before the traditional AAO process, and the return sludge in the membrane bioreactor area removes nitrate nitrogen by using organic matters in the inlet water of the pre-anoxic section as a denitrification carbon source so as to eliminate the adverse effect of nitrate on the anaerobic environment of the anaerobic section. The device adopts the sewage treatment combining an activated sludge method and a biofilm method.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment device, especially, multiple mud membrane coupling membrane bioreactor integration sewage treatment plant.
Background
The aggravation of the problems of water resource shortage, water pollution and the like brings profound influence on the continuous development of the 21 st century human society. The research on a new sewage treatment technology changes the treated water and mud into available resources, so that the sewage treatment industry becomes a new industry for natural resource regeneration and utilization, and is one of important ways for solving water pollution and reasonably utilizing water resources. As a research direction of sewage treatment technology, the focus is on reducing energy consumption, improving effluent quality, reducing sludge amount, simplifying and reducing the volume of treatment structures, reducing occupied land, reducing capital construction and operation cost, improving management conditions, and the like.
The traditional biological nitrogen and phosphorus removal process mostly adopts an activated sludge method, phosphorus accumulating bacteria, denitrifying bacteria, nitrifying bacteria and the like coexist in the same activated sludge system, the biological phosphorus removal is carried out by removing sludge rich in phosphorus after excessive phosphorus absorption of the sludge, the sludge age is required to be shorter, and the nitrifying nitrogen removal needs to be longer, so in the traditional process operation process, the contradiction between different sludge ages of the nitrifying bacteria and the phosphorus accumulating bacteria inevitably exists, and the phosphorus removal and the nitrogen removal are mutually interfered.
Through a search, no patent publication related to the present patent application has been found.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide an integrated sewage treatment device of a multiple sludge membrane coupling membrane bioreactor.
The utility model provides a technical scheme that its technical problem adopted is:
a multi-sludge-membrane-coupled membrane bioreactor integrated sewage treatment device comprises a box body, a pre-anoxic section, an anaerobic section, an anoxic section, an aerobic section, a membrane bioreactor area, a water inlet pipeline, a water outlet self-priming pump/vacuum pump, a sludge reflux pump and a sludge discharge port, wherein the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section and the membrane bioreactor area which are mutually separated are arranged in the box body;
the output end of the membrane bioreactor area comprises a water outlet output end and a sludge output end, the water outlet output end is connected with a water outlet self-priming pump/vacuum pump, and the sludge output end is connected with the pre-anoxic section, the anaerobic section, the anoxic section and the sludge discharge port through a sludge reflux pump; water after the membrane bioreactor zone treatment can be discharged or recycled as effluent power through negative pressure generated by water outlet self-priming pump suction or a vacuum pump, sludge after the membrane bioreactor zone treatment respectively flows back to the pre-anoxic section, the anaerobic section and the anoxic section through the sludge reflux pump, and redundant sludge is discharged through a sludge discharge port.
Further, the box body is a steel contour plate.
Furthermore, submersible stirrers are arranged in the pre-anoxic section, the anaerobic section and the anoxic section; and a disc type aerator is arranged at the bottom of the aerobic section, and biological fillers are thrown above the disc type aerator.
Further, the membrane bioreactor zone is provided with an immersed ultrafiltration membrane module.
Furthermore, the device also comprises a carbon source adding device, the carbon source adding device is connected with the membrane bioreactor area, and the carbon source adding device can add powdered activated carbon to the membrane bioreactor area.
Further, the device also comprises a backwashing water pump, a blower, an ultraviolet disinfection device, a backwashing water tank, a dephosphorization dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline, a membrane backwashing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a dephosphorization dosing pipeline and a water outlet, wherein disc type micropore aerators are uniformly distributed at the bottom of the aerobic section, supply air to the aerators through the aeration main pipeline and the aerobic section aeration branch pipeline through the blower, and the aerobic section aeration branch pipeline is arranged at the aerobic section and connected with the aeration main pipeline;
a plurality of groups of MBR membrane modules are arranged in the membrane bioreactor area, the water outlet ends of the MBR membrane modules are connected with a water outlet main pipeline through a membrane box water outlet pipeline and a water self-priming pump, and the water outlet main pipeline is connected with a backwashing water box, a phosphorus removal and medicine adding device, a carbon source adding device, a sodium hypochlorite adding device and a water outlet; the backwashing water tank is connected with the membrane bioreactor area through a backwashing water pump, and can perform backwashing operation on the MBR membrane component through the backwashing water pump;
the phosphorus removal and medicine adding device is connected with the anaerobic tank through a phosphorus removal and medicine adding pipeline and can add a phosphorus removal agent into the anaerobic tank through the phosphorus removal and medicine adding pipeline;
the sodium hypochlorite adding device is connected with the MBR membrane assembly through a membrane backwashing pipeline and a sodium hypochlorite adding pipeline, and can add sodium hypochlorite into the membrane backwashing pipeline;
the ultraviolet disinfection device is arranged on the main water outlet pipeline and can disinfect and disinfect the outlet water;
the membrane gas washing aeration branch pipeline is connected with the main aeration pipeline and arranged in the membrane bioreactor area, and suspended matters intercepted by the MBR membrane component can be swept/aerated through the membrane gas washing aeration branch pipeline;
the carbon source adding device is also connected with the aerobic tank through a carbon source adding pipeline and can add a carbon source to the aerobic tank through the carbon source adding pipeline.
Further, the device also comprises a device room and an electric automatic control system, wherein the electric automatic control system is connected with the box body, the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section, the membrane bioreactor area, a water inlet pipeline, a water outlet self-priming pump/vacuum pump, a sludge reflux pump, a sludge discharge port, a back-flushing water pump, an air blower, an ultraviolet disinfection device, a back-flushing water tank, a dephosphorization dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline, a membrane back-flushing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a dephosphorization dosing pipeline and a water outlet, and can control the box body, the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section, the membrane bioreactor area, the water inlet pipeline, the water outlet self-priming pump/vacuum pump, the sludge reflux pump, the anaerobic section, the membrane bioreactor area, the water outlet self-flushing pump/vacuum pump, the sludge reflux pump, the sludge pump, the water outlet, the aeration section, The device comprises a sludge discharge port, a backwashing water pump, an air blower, an ultraviolet disinfection device, a backwashing water tank, a phosphorus removal dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline 28, a membrane backwashing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a phosphorus removal dosing pipeline and a water outlet.
Further, the device still includes the drain, and the drain setting can discharge away harm normal operating and the medium of maintaining the maintenance in the anoxic section in the bottom of anoxic section through the drain.
The utility model discloses the advantage that gains does with positive effect:
1. the device adds the pre-anoxic section before the traditional AAO process, and the return sludge in the membrane bioreactor area removes nitrate nitrogen by using organic matters in the inlet water of the pre-anoxic section as a denitrification carbon source so as to eliminate the adverse effect of nitrate on the anaerobic environment of the anaerobic section. The device adopts the sewage treatment combining an activated sludge method and a biofilm method.
2. The device is provided with biological filler in the aerobic section, and simultaneously arranges the aerobic section and the membrane bioreactor in the same system, thereby not only providing huge space for living habitation by utilizing the large specific surface area of the filler, but also leaving activated sludge in the system by utilizing the membrane separation performance of the MBR, reducing the output of residual sludge and keeping the high-concentration microorganism amount of the system.
3. The membrane bioreactor area of the device is added with powdered activated carbon, so that the influence of Extracellular Polymeric Substances (EPS) on the membrane separation effect can be effectively inhibited, the structure of activated sludge flocs is improved, the pollution of a membrane is reduced, and simultaneously, the added flocculating agent helps to form the activated sludge flocs with larger volume and smaller viscosity, the performance of mud-water separation is improved, and the rate of membrane pollution is reduced.
4. This device adopts ultraviolet ray disinfection + chlorine system disinfection to combine technology, both can effectively deactivate the microorganism, also can compensate the defect that adopts ultraviolet disinfection alone and does not have the effect of lasting disinfection, can also reduce the use amount of chlorine, reduces the production of aquatic chlorine disinfection accessory substance, reduces the biotoxicity of water. The combined disinfection process plays roles of making best use of the advantages and avoiding the disadvantages.
Drawings
Fig. 1 is a schematic view of the structure connection of the device of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to be illustrative and not limiting, and the scope of the present invention should not be limited by the following examples.
The structures used in the utility model are conventional structures if no special description is provided; the methods used in the present invention are conventional methods in the art unless otherwise specified.
A multi-sludge-membrane-coupled membrane bioreactor integrated sewage treatment device is shown in figure 1 and comprises a box body 1, a pre-anoxic section 2, an anaerobic section 3, an anoxic section 4, an aerobic section 5, a membrane bioreactor zone 6, a water inlet pipeline 23, a water outlet self-suction pump/vacuum pump 14, a sludge reflux pump 12 and a sludge discharge port 34, wherein the box body is internally provided with the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section and the membrane bioreactor zone which are mutually separated;
the output end of the membrane bioreactor area comprises a water outlet output end and a sludge output end, the water outlet output end is connected with a water outlet self-priming pump/vacuum pump, and the sludge output end is connected with the pre-anoxic section, the anaerobic section, the anoxic section and the sludge discharge port through a sludge reflux pump; water after the membrane bioreactor zone is treated can be discharged or recycled as effluent power through negative pressure or a vacuum pump generated by water outlet self-priming pump suction, sludge after the membrane bioreactor zone is treated respectively flows back to the pre-anoxic section, the anaerobic section and the anoxic section through the sludge reflux pump, redundant sludge is discharged through a sludge discharge port, and different reflux ratios can be adopted according to process purposes.
In this embodiment, the box is a steel contoured plate.
In this embodiment, submersible stirrers 8, 9, and 10(8 is a submersible stirrer for the pre-anoxic section, 9 is a submersible stirrer for the anaerobic section, and 10 is a submersible stirrer for the anoxic section) are all arranged in the pre-anoxic section, the anaerobic section, and the anoxic section, and a necessary circulation flow rate is provided by stirring of the submersible stirrers to keep the mixed liquid in the tank in a suspended state, so that the microorganisms are in full contact with the substrate, and a continuous circulation water flow is formed by energy input by the stirrers; the bottom of the aerobic section is provided with a disc aerator 11, biological filler is arranged above the disc aerator and provides a huge space for the living beings to inhabit, so that a large amount of microorganisms can be attached to grow, and the biomass with higher concentration in the biological contact oxidation pond can be maintained.
In this embodiment, the membrane bioreactor section is provided with an immersed ultrafiltration membrane module 13.
In this embodiment, the apparatus further includes a carbon source adding device 21, the carbon source adding device is connected to the membrane bioreactor region, and the carbon source adding device is capable of adding powdered activated carbon to the membrane bioreactor region. The powdery active carbon is added into the membrane bioreactor, so that the influence of Extracellular Polymer (EPS) on the membrane separation effect can be effectively inhibited, the structure of activated sludge floc is improved, and the membrane pollution is reduced; the addition of the flocculating agent is beneficial to forming activated sludge flocs with larger volume and smaller viscosity, improving the performance of sludge-water separation and slowing down the rate of membrane pollution.
In this embodiment, the device further comprises a backwashing water pump 15, an air blower 16, an ultraviolet disinfection device 18, a backwashing water tank 19, a phosphorus removal and dosing device 20, a sodium hypochlorite dosing device 22, a water inlet pipeline 23, a main aeration pipeline 24, an aerobic section aeration branch pipeline 25, a membrane air washing aeration branch pipeline 26, a membrane tank water outlet pipeline 27, a water outlet main pipeline 28, a membrane backwashing pipeline 29, a sodium hypochlorite dosing pipeline 30, a carbon source dosing pipeline 31, a phosphorus removal dosing pipeline 32 and a water outlet 35, wherein the bottom of the aerobic section is uniformly provided with a disc type microporous aerator which supplies air to the aerator through the main aeration pipeline and the aerobic section aeration branch pipeline by the air blower, and the aerobic section aeration branch pipeline is arranged at the aerobic section and connected with the main aeration pipeline; compared with the traditional perforated pipe aeration, the disc type microporous aerator has the advantages that the oxygen utilization rate can be improved by 20-30%, the microporous aerator can generate tiny bubbles, and the contact area between the bubbles and liquid is increased; the aerators are uniformly arranged at the bottom of the aeration tank, so that upward flow of a small part of water and bubbles is generated, and the ascending bubbles and the downward flowing water flow form convection, so that the transfer speed of oxygen is increased.
A plurality of groups of MBR membrane assemblies are arranged in the membrane bioreactor area, the water outlet ends of the MBR membrane assemblies are connected with a water outlet main pipeline through a membrane box water outlet pipeline 27 and a water self-priming pump, and the water outlet main pipeline is connected with a backwashing water box, a phosphorus removal and medicine adding device, a carbon source adding device, a sodium hypochlorite adding device and a water outlet; one part of the effluent of the MBR membrane module is used for supplying water for reuse by a backwashing water tank, a phosphorus removal and chemical addition device, a carbon source adding device and a sodium hypochlorite adding device, and the rest part is discharged; the backwashing water tank is connected with the membrane bioreactor area through a backwashing water pump, and can perform backwashing operation on the MBR membrane component through the backwashing water pump;
the phosphorus removal and medicine adding device is connected with the anaerobic tank through a phosphorus removal and medicine adding pipeline and can add a phosphorus removal agent into the anaerobic tank through the phosphorus removal and medicine adding pipeline;
the sodium hypochlorite adding device is connected with the MBR membrane module through a membrane backwashing pipeline and a sodium hypochlorite adding pipeline, and can add sodium hypochlorite into the membrane backwashing pipeline so as to clean the membrane module; the membrane bioreactor area is generally cleaned in a chemical maintenance mode for 1-2 times per week for 30 minutes, so that bacteria and organic matters deposited on the surface of the membrane can be removed, and TMP can be recovered.
The ultraviolet disinfection device is arranged on the main water outlet pipeline and can disinfect and disinfect the outlet water;
the membrane gas washing aeration branch pipeline is connected with the main aeration pipeline and arranged in the membrane bioreactor area, and suspended matters intercepted by the MBR membrane component can be swept/aerated through the membrane gas washing aeration branch pipeline;
the carbon source adding device is also connected with the aerobic tank through a carbon source adding pipeline and can add a carbon source to the aerobic tank through the carbon source adding pipeline.
In this embodiment, the apparatus further comprises a plant room 7 and an electrical automatic control system 17, wherein the electrical automatic control system is connected with the tank, the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section, the membrane bioreactor region, a water inlet pipeline, a water outlet self-priming pump/vacuum pump, a sludge reflux pump, a sludge discharge port, a backwash water pump, a blower, an ultraviolet disinfection device, a backwash water tank, a phosphorus removal dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane gas washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline, a membrane backwash pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a phosphorus removal dosing pipeline and a water outlet, and can control the tank, the pre-anoxic section, the anaerobic section, the aerobic section, the membrane bioreactor region, the water inlet pipeline, the water outlet self-priming pump/vacuum pump, The device comprises a sludge reflux pump, a sludge discharge port, a backwashing water pump, an air blower, an ultraviolet disinfection device, a backwashing water tank, a phosphorus removal dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline 28, a membrane backwashing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a phosphorus removal dosing pipeline and a water outlet.
In this embodiment, the device further comprises a vent 33, which is arranged at the bottom of the anoxic section and through which media harmful to normal operation and maintenance in the anoxic section (devices, pipelines, etc.) can be discharged.
The integrated sewage treatment method utilizing the integrated sewage treatment device of the multiple sludge membrane coupled membrane bioreactor combines an activated sludge method of suspension growth and a biofilm method of attachment growth, namely a suspension attachment biological treatment process.
The integrated sewage treatment device adopts the multiple sludge membrane coupling membrane bioreactor technology. The biochemical reaction zone adopts an AAAO process and combines the technical characteristics of a membrane bioreactor to form a novel sewage treatment process with high-efficiency nitrogen and phosphorus removal performance. The pre-anoxic section utilizes a water inlet carbon source and the return sludge of the membrane bioreactor area to carry out rapid denitrification, then the mixed liquor enters the anaerobic section to carry out anaerobic phosphorus release, the influence of nitrate on the phosphorus release is reduced, the anoxic section utilizes the residual carbon source in the sewage and the return sludge of the membrane bioreactor area to further carry out denitrification, and a plurality of reactions such as organic matter degradation, aerobic phosphorus release, aerobic nitrification and the like synchronously occur in the aerobic section, so that pollutants in the sewage are thoroughly removed. The mixed liquid is separated out of water through the membrane bioreactor area, so that organic matters, nitrogen and phosphorus in the sewage are removed.
Although the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore, the scope of the invention is not limited to the embodiments disclosed.
Claims (8)
1. The utility model provides a multiple mud membrane coupling membrane bioreactor integration sewage treatment plant which characterized in that: the device comprises a box body, a pre-anoxic section, an anaerobic section, an anoxic section, an aerobic section, a membrane bioreactor area, a water inlet pipeline, a water outlet self-priming pump/vacuum pump, a sludge reflux pump and a sludge discharge port, wherein the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section and the membrane bioreactor area which are mutually separated are arranged in the box body;
the output end of the membrane bioreactor area comprises a water outlet output end and a sludge output end, the water outlet output end is connected with a water outlet self-priming pump/vacuum pump, and the sludge output end is connected with the pre-anoxic section, the anaerobic section, the anoxic section and the sludge discharge port through a sludge reflux pump; water after the membrane bioreactor zone treatment can be discharged or recycled as effluent power through negative pressure generated by water outlet self-priming pump suction or a vacuum pump, sludge after the membrane bioreactor zone treatment respectively flows back to the pre-anoxic section, the anaerobic section and the anoxic section through the sludge reflux pump, and redundant sludge is discharged through a sludge discharge port.
2. The integrated sewage treatment device of the multiple sludge-membrane coupled membrane bioreactor according to claim 1, wherein: the box body is a steel contour plate.
3. The integrated sewage treatment device of the multiple sludge-membrane coupled membrane bioreactor according to claim 1, wherein: submersible stirrers are arranged in the pre-anoxic section, the anaerobic section and the anoxic section; and a disc type aerator is arranged at the bottom of the aerobic section, and biological fillers are thrown above the disc type aerator.
4. The integrated sewage treatment device of the multiple sludge-membrane coupled membrane bioreactor according to claim 1, wherein: the membrane bioreactor zone is provided with an immersed ultrafiltration membrane module.
5. The integrated sewage treatment device of the multiple sludge-membrane coupled membrane bioreactor according to claim 1, wherein: the device also comprises a carbon source adding device, wherein the carbon source adding device is connected with the membrane bioreactor area and can add powdered activated carbon to the membrane bioreactor area.
6. The integrated sewage treatment plant of the multiple sludge membrane coupled membrane bioreactor according to any one of claims 1 to 5, wherein: the device also comprises a backwashing water pump, a blower, an ultraviolet disinfection device, a backwashing water tank, a dephosphorization dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline, a membrane backwashing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a dephosphorization dosing pipeline and a water outlet, wherein disc type micropore aerators are uniformly distributed at the bottom of the aerobic section, the disc type micropore aerators supply air to the aerators through the aeration main pipeline and the aerobic section aeration branch pipeline through the blower, and the aerobic section aeration branch pipeline is arranged at the aerobic section and connected with the aeration main pipeline;
a plurality of groups of MBR membrane modules are arranged in the membrane bioreactor area, the water outlet ends of the MBR membrane modules are connected with a water outlet main pipeline through a membrane box water outlet pipeline and a water self-priming pump, and the water outlet main pipeline is connected with a backwashing water box, a phosphorus removal and medicine adding device, a carbon source adding device, a sodium hypochlorite adding device and a water outlet; the backwashing water tank is connected with the membrane bioreactor area through a backwashing water pump, and can perform backwashing operation on the MBR membrane component through the backwashing water pump;
the phosphorus removal and medicine adding device is connected with the anaerobic tank through a phosphorus removal and medicine adding pipeline and can add a phosphorus removal agent into the anaerobic tank through the phosphorus removal and medicine adding pipeline;
the sodium hypochlorite adding device is connected with the MBR membrane assembly through a membrane backwashing pipeline and a sodium hypochlorite adding pipeline, and can add sodium hypochlorite into the membrane backwashing pipeline;
the ultraviolet disinfection device is arranged on the main water outlet pipeline and can disinfect and disinfect the outlet water;
the membrane gas washing aeration branch pipeline is connected with the main aeration pipeline and arranged in the membrane bioreactor area, and suspended matters intercepted by the MBR membrane component can be swept/aerated through the membrane gas washing aeration branch pipeline;
the carbon source adding device is also connected with the aerobic tank through a carbon source adding pipeline and can add a carbon source to the aerobic tank through the carbon source adding pipeline.
7. The integrated sewage treatment device of the multiple sludge-membrane coupled membrane bioreactor according to claim 6, wherein: the device also comprises a device room and an electric automatic control system, wherein the electric automatic control system is connected with the box body, the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section, the membrane bioreactor area, a water inlet pipeline, a water outlet self-priming pump/vacuum pump, a sludge reflux pump, a sludge discharge port, a back-flushing water pump, an air blower, an ultraviolet disinfection device, a back-flushing water tank, a phosphorus removal dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane gas washing aeration branch pipeline, a membrane box water outlet pipeline, a water outlet main pipeline, a membrane back-flushing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a phosphorus removal dosing pipeline and a water outlet, and can control the box body, the pre-anoxic section, the anaerobic section, the anoxic section, the aerobic section, the membrane bioreactor area, the water inlet pipeline, the water outlet self-priming pump/vacuum pump, the sludge reflux pump, a sludge discharge port and a water outlet to be connected and arranged, The device comprises a backwashing water pump, an air blower, an ultraviolet disinfection device, a backwashing water tank, a phosphorus removal dosing device, a sodium hypochlorite dosing device, a water inlet pipeline, an aeration main pipeline, an aerobic section aeration branch pipeline, a membrane air washing aeration branch pipeline, a membrane tank water outlet pipeline, a water outlet main pipeline, a membrane backwashing pipeline, a sodium hypochlorite dosing pipeline, a carbon source dosing pipeline, a phosphorus removal dosing pipeline and a water outlet.
8. The integrated sewage treatment plant of the multiple sludge-membrane coupled membrane bioreactor according to claim 6 or 7, wherein: the device still includes the drain, and the drain setting can discharge away harm normal operating and the medium of maintaining in the anoxic section through the drain in the bottom of anoxic section.
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| CN118684345A (en) * | 2024-07-17 | 2024-09-24 | 中机中联工程有限公司 | A AAO-MBR integrated sewage treatment equipment |
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