CN210048621U

CN210048621U - Integrated sewage treatment equipment based on MBBR and ultramicro separation

Info

Publication number: CN210048621U
Application number: CN201920068847.1U
Authority: CN
Inventors: 林明; 黄鑫; 谢耀东; 刘雷; 李彬辉; 孙明利; 王磊; 庄毅璇
Original assignee: Shenzhen Ier Environmental Protection Engineering Technology Co Ltd
Current assignee: CHONGQING ENVIRONMENTAL PROTECTION ENGINEERING DESIGN INSTITUTE Co.,Ltd.
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2020-02-11
Anticipated expiration: 2029-01-15

Abstract

The utility model provides an integration sewage treatment device based on MBBR and super little separation, integration sewage treatment device is including moving bed biofilm reactor module and ultramicro separation module, and moving bed biofilm reactor module and ultramicro separation module are connected through the pipeline. The utility model discloses an integration sewage treatment device adopts the moving bed biofilm reactor module and the super little separation module realization through the pipe connection, consequently, can realize moving bed biofilm reactor and the advantage of super little separation simultaneously to overcome moving bed biofilm reactor's area big and the shortcoming of super little separation to the removal of soluble pollutant inefficiency.

Description

Integrated sewage treatment equipment based on MBBR and ultramicro separation

Technical Field

The utility model relates to an integration sewage treatment device especially relates to an integration sewage treatment device based on MBBR removes bed biomembrane and super little separation.

Background

At present, in order to improve the water environment quality, the construction work of sewage treatment facilities such as black and odorous water treatment, tail water upgrading and capacity expansion of sewage treatment plants, emergency treatment of polluted water and the like is being vigorously promoted. The sewage treatment facilities generally have the requirements of small occupied area, high treatment efficiency, short construction period, simple and convenient operation and maintenance and the like. The current mature technologies comprise coagulating sedimentation, MBR, super-magnetic separation and the like, wherein the coagulating sedimentation is generally low in hydraulic load, long in hydraulic retention time and large in occupied area; the MBR occupies a small area, but has the problems of easy blockage of a membrane module and large operation and maintenance amount; the super magnetic separation has the advantages of small occupied area, simple operation, small maintenance amount and the like, but has low purification efficiency.

Moving-Bed Biofilm reactors (Moving-Bed Biofilm reactors, abbreviated as MBBR) increase the biomass and the biological species in the Reactor by adding a certain amount of suspension carriers into the Reactor, thereby increasing the treatment efficiency of the Reactor. Because the density of the used filler is close to that of water, the filler and the water are in a completely mixed state during aeration, and the environment for the growth of microorganisms is a gas phase, a liquid phase and a solid phase. The collision and shearing action of the carrier filler in water makes air bubbles finer, and the utilization rate of oxygen is increased. In addition, different biological species are arranged inside and outside each carrier, anaerobic bacteria or facultative bacteria grow inside the carriers, and aerobic bacteria grow outside the carriers, so that each carrier becomes a micro-reactor, and the pollutant removal effect is greatly improved.

The ultramicro separation utilizes a special device and structural design, effectively improves the dissolving capacity of air in water, and leads the air to be mixed in the water body, thereby being capable of stably generating a large amount of ultramicro bubbles. Compared with the conventional bubbles, the super micro bubbles have the advantages of high oxygen mass transfer rate, strong adsorption capacity, good pollutant removal effect and the like. Separating and removing pollutants in the water body by the ultramicro bubbles through comprehensive physical and chemical actions; meanwhile, the self-pressurization characteristic of the ultramicro bubbles can continuously enhance the mass transfer efficiency at the gas-liquid interface, remove pollutants, improve the content of dissolved oxygen in water and further improve the quality of effluent. As the ultramicro bubbles are uniformly distributed and have no dead zone, the equipment efficiency can be greatly improved and the equipment volume is greatly reduced.

At present, MBBR or ultra-micro separation is used for black and odorous water body treatment, tail water upgrading and capacity expansion of a sewage treatment plant and emergency treatment of a polluted water body, and certain problems exist. The MBBR has higher pollutant removal efficiency, but a sedimentation system is usually required to be arranged, so that the occupied area of the whole system is larger; the micro-separation footprint is small but it is less efficient for the removal of dissolved contaminants.

SUMMERY OF THE UTILITY MODEL

The integrated sewage treatment device can comprise an MBBR module for performing primary treatment on sewage and an ultramicro separation module for further treating effluent of the MBBR module. The integrated sewage treatment equipment can meet the requirements of small occupied area, high treatment efficiency, short construction period, simple and convenient operation and maintenance and the like.

The application provides an integration sewage treatment device, integration sewage treatment device is including moving bed biofilm reactor module and super little separation module, and moving bed biofilm reactor module and super little separation module are connected through the pipeline.

According to an exemplary embodiment, the integrated wastewater treatment plant further comprises an operation control area, wherein the operation control area realizes program control of water inlet, water outlet and aeration of the moving bed biofilm reactor module, and program control of dosing, solid-liquid separation, slag scraping and sludge discharging of the ultramicro separation module.

According to an exemplary embodiment, the moving bed biofilm reactor module includes a main tank of the apparatus divided into a plurality of reaction zones by partitions, wherein water passing holes are provided at the bottom or upper portion of the partitions so that sewage passes through the water in the plurality of reaction zones in a vertically baffled manner.

According to an exemplary embodiment, the moving bed biofilm reactor module further comprises a water distribution system and a water collection system located at the water inlet end and the water outlet end of the moving bed biofilm reactor module, respectively.

According to an exemplary embodiment, the water distribution system and the water collection system comprise perforated water distribution pipes and perforated water collection pipes, respectively.

According to an exemplary embodiment, the moving bed biofilm reactor module further comprises: an aeration system for aerating and supplying oxygen to the plurality of reaction zones; suspended biological packing located in the plurality of reaction zones.

According to an exemplary embodiment, the ultramicro separation module comprises an ultramicro bubble generating device, a first reaction tank, a second reaction tank and a contact reaction separation clarification tank, wherein the ultramicro bubble generating device is communicated with the contact reaction separation clarification tank, the first reaction tank and the second reaction tank are communicated with each other to allow water to pass through, and the second reaction tank and the contact reaction separation clarification tank are communicated with each other to allow water to pass through a pipeline.

According to an exemplary embodiment, the ultra-micro separation module further includes a first and a second dosing barrel for adding the reaction agent to the first and the second reaction cells, respectively.

According to an exemplary embodiment, the ultra-micro separation module further includes a slag scraping device disposed at a top of the contact reaction clarifier, the slag scraping device scraping the dross located at the surface of the contact reaction clarifier into the slag discharging tank.

According to an exemplary embodiment, the ultra-micro separation module further includes a clean water tank, and a lower portion of the contact reaction clarifier communicates with the clean water tank through a pipe.

The utility model discloses the beneficial effect that can reach is:

the utility model provides an integration sewage treatment device based on MBBR and super little separation. The integrated sewage treatment equipment takes the MBBR module and the ultramicro separation module which have high treatment efficiency, good treatment effect, strong shock resistance load, less residual sludge and simple operation maintenance as cores, adopts a container type appearance through systematic integrated design, is convenient to transport and install, is quick to start, and has high equipment treatment efficiency and small occupied area. Meanwhile, the water inlet, aeration, medicine adding, slag scraping and sludge discharging of the equipment are controlled by programs, the automation degree is high, and the continuous and stable operation of the equipment can be realized.

Drawings

Fig. 1A is a schematic structural view of a moving bed biofilm reactor module of the present invention.

Fig. 1B is a schematic structural diagram of the ultramicro separation module and the operation control area of the present invention.

FIG. 2 is a process flow diagram of the integrated sewage treatment equipment based on the moving bed biofilm reactor and the ultramicro separation technology.

Detailed Description

Hereinafter, exemplary embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

It is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms, and are not limited to the embodiments described herein. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete.

Fig. 1A is a schematic structural view of a moving bed biofilm reactor module of the present invention. Fig. 1B is a schematic structural diagram of the ultramicro separation module and the operation control area of the present invention.

As shown in fig. 1A and 1B, in an embodiment of the present invention, an integrated sewage treatment apparatus based on MBBR moving bed biofilm and ultra micro separation may include: MBBR module 10, operation control area 20, ultra-micro separation module 30.

The MBBR module 10 is a separate equipment box, and the operation control area 20 and the ultra-micro separation module 30 can be integrated into another separate equipment box. In an exemplary embodiment, the MBBR module 10, the operation control zone 20, and the ultra micro separation module 30 may be separate equipment enclosures, respectively. In another exemplary embodiment, the MBBR module 10 and the operation control area 20 may be integrated into a single equipment cabinet, and the ultra-micro separation module 30 may be a single equipment cabinet. That is, the integration mode of the MBBR module 10, the operation control section 20, and the ultra-micro separation module 30 can be flexibly changed according to actual needs.

The MBBR module 10 may contain a plant body reaction system, a water distribution system, a water collection system, an aeration system, and suspended biological packing.

In another aspect, the MBBR module 10 may include a perforated water distributor 11, a perforated water collector 12, an aeration blower 13, an aeration main 14, aeration branch pipes 15, suspended biological fillers 16, a partition 17, a cover plate 18, and a device main tank 19.

The reaction system of the main body of the device can be divided into a plurality of reaction areas according to the difference of the treated water quantity and the treated water quality. The middle parts of the reaction areas are separated by partition boards 17 and are used for bearing sewage to be treated so as to ensure certain reaction time. In other words, the partition 17 may uniformly divide the equipment main tank 19 of the MBBR module 10 into a plurality of reaction regions.

The bottom or upper part of the partition 17 is uniformly provided with water through holes so that the sewage can flow through the MBBR module 10 in a manner of deflecting up and down, and the number of reaction areas is generally even. In fig. 1A, four reaction zones are shown, and in the following description, a process flow of treating sewage is explained taking four reaction zones as an example, but the present exemplary embodiment is not limited thereto.

The water distribution system is arranged at the upper part of the water inlet end of the MBBR module 10, consists of perforated water distribution pipes 11 and is used for enabling sewage to be treated to uniformly enter the MBBR module 10 so as to carry out water inlet treatment. The perforated distributor 11 may be disposed in the upper part of the first reaction zone of the main tank 19 of the apparatus near the water inlet end.

The water collecting system is arranged at the upper part of the water outlet end of the MBBR module 10, consists of a perforated water collecting pipe 12 and is used for enabling sewage treated by the MBBR to uniformly flow out of the MBBR module. The perforated header 12 may be placed in the upper part of the last reaction zone of the main tank 19 of the apparatus near the outlet end.

The aeration system may be composed of a main aeration pipe 14 and branch aeration pipes 15, and is used for aeration oxygen supply of the MBBR module 10. The aeration main 14 may be installed at an upper portion within the MBBR module 10 and may be connected with the aeration blower 13, but exemplary embodiments are not limited thereto. The aeration branch pipes 15 may be installed at the bottom of each reaction zone of the MBBR module 10 and connected with the aeration main pipes 14.

The aeration system can fluidize the suspended biological charge 16 while supplying oxygen to the MBBR module 10 by blowing air through the aeration blower 13.

Although the aeration blower 13 is disposed in the operation control zone 20 as shown in fig. 1B, the aeration blower 13 may be disposed elsewhere as long as the main aeration pipe 14 and the branch aeration pipes 15 can be connected by pipes.

The suspended biological filler 16 is made of a biologically modified HDPE material or a modified polyurethane material. Depending on the quality of the water being treated, suspended biological filler 16 is dosed to each reaction zone of the MBBR module 10 in a certain proportion. Suspended biological fillers 16 are used to provide a locus for the growth of microorganisms, thereby removing contaminants from the wastewater by the microorganisms growing on the suspended biological fillers 16.

The cover plate 18 may be laid on top of the equipment main housing 19 of the MBBR module 10. The MBBR module 10 may further be provided with an overflow pipe and an evacuation pipe for controlling the amount of sewage entering the integrated sewage treatment plant and for evacuating the plant.

The operation control area 20 can centrally place and install the aeration blower 13, the electric control cabinet 21, the equipment room door 22, the louver 23, the axial flow fan 24, the air compressor 25, and the like. Operation control district 20 can realize programme-controlled to the intaking of MBBR module 10, play water and aeration, also can realize programme-controlled to super little separation module add medicine, solid-liquid separation, scrape sediment and row's mud simultaneously to the guarantee the utility model discloses an integration sewage treatment device based on remove bed biomembrane and super little separation technique is continuous, automatic operation.

The MBBR module 10 may be connected to the ultra micro separation module 30 via a pipe. Effluent collected by the water collection system of MBBR module 10 may be piped to ultra micro separation module 30 for further processing.

The ultra-micro separation module 30 may include a dosing system, a reaction system, an ultra-micro separation system, and the like.

In another aspect, the ultra-micro separation module 30 may include a first dosing tank 31, a second dosing tank 32, a first reaction tank 33, a second reaction tank 34, an ultra-micro bubble generating device 35, a contact reaction clarifier 36, a slag scraping device 37, a slag discharge tank 38, and a clean water tank 39. In an exemplary embodiment, the first and second medicine adding barrels 31 and 32 may be provided in the operation control area 20.

The dosing system mainly includes a drug a dosing tank and a drug B dosing tank (i.e., a first dosing tank 31 and a second dosing tank 32 described below), a stirrer, a metering pump, a dosing pipe, and the like. The dosing system is used for configuring a medicament and dosing the medicament to the reaction system in the ultra-micro separation module 30.

The first dosing barrel 31 and the second dosing barrel 32 can be used for configuring reaction reagents, and the reaction reagents in the first dosing barrel 31 and the second dosing barrel 32 are respectively added into the first reaction tank 33 and the second reaction tank 34 of the reaction system through a metering pump and a dosing pipeline, so that the reaction reagents and the effluent of the MBBR module 10 are subjected to mixing reaction.

The first reaction tank 33 and the second reaction tank 34 may be communicated by a communicating pipe. The second reaction tank 34 may be divided into two compartments, but is not limited thereto. In an exemplary embodiment, the second reaction cell 34 may be divided into a plurality of compartments. The two compartments in the second reaction tank 34 are respectively provided with a slow stirrer for stirring, mixing and reacting the sewage and the reaction agent.

The ultra-micro separation system may include an ultra-micro bubble generating device 35, a contact reaction separation clarifier 36, a slag scraping device 37, a slag discharging tank 38, and a clean water tank 39. The microbubble generator 35 may be disposed at the water inlet end of the ultra-fine separation module 30 and connected to the contact reaction clarifier 36 through a pipe. The second reaction tank 34 may be connected to the contact reaction clarifier 36 through a pipe. The ultra-micro bubbles generated by the ultra-micro bubble generating device 35 and the effluent from the second reaction tank 34 are subjected to contact reaction in the contact reaction clarification tank 36, so that floccules formed in the reaction system by pollutants in the sewage are separated from the sewage and float up. The scum formed can float to the surface contacting the reaction clarifier 36.

A scum scraper 37 may be provided at the top of the contact reaction clarifier 36 and scrape scum contacting the surface of the contact reaction clarifier 36 into the scum tank 38 to be discharged outside the apparatus.

The lower part of the contact reaction clarification tank 36 can be communicated with the clean water tank 39 through a pipeline, and the clean water treated by the contact reaction clarification tank 36 can be discharged out of the equipment after entering the clean water tank 39.

The ultra-micro separation module 30 may also be provided with an evacuation pipe for evacuating the ultra-micro separation reaction system and the contact reaction separation clarification tank.

Hereinafter, a sewage treatment process using the integrated sewage treatment apparatus of the present invention will be described with reference to fig. 2.

1. The following describes the treatment process after the wastewater enters the MBBR module 10 through the water inlet pipe:

firstly, sewage uniformly enters the first reaction area of the MBBR module 10 from the upper part of the first reaction area close to the perforated water distribution pipe 11 through the perforated water distribution pipe 11, enters the second reaction area through the water through holes at the bottom of the partition plate 17 between the first reaction area and the second reaction area, then enters the third reaction area through the water through holes at the upper part of the partition plate 17 between the second reaction area and the third reaction area, then enters the fourth reaction area through the water through holes at the bottom of the partition plate 17 between the third reaction area and the fourth reaction area, then the sewage treated by the MBBR module 10 is collected through the perforated water collection pipe 12 arranged at the upper part of the fourth reaction area, and finally the sewage enters the ultra-micro separation module 30.

Under the condition that the aeration branch pipe 15 is uniformly supplied with oxygen, the Chemical Oxygen Demand (COD), ammonia nitrogen and part of suspended matters and total phosphorus in the sewage are removed by the action of microorganisms attached to the suspended biological filler 16.

2. The following describes the treatment process of the wastewater treated by the MBBR module 10 in the ultra-micro separation module 30: the main pollutants of the sewage treated by the MBBR module 10 comprise COD, total phosphorus and suspended matters formed by a few dropped biological films and the like. After the agent in the first dosing barrel 31 is added into the first reaction tank 33 and the agent in the second dosing barrel 32 is added into the second reaction tank 34, the sewage after the mixed reaction enters the contact reaction clarification tank 36, and the sewage and the ultramicro bubbles generated by the ultramicro bubble generating device 35 are subjected to contact reaction to be clarified and separated, so that pollutants such as total phosphorus, suspended matters, COD (chemical oxygen demand) and the like in the sewage are further removed.

3. And (3) water outlet after reaching the standard:

the ultra-micro separation module 30 is operated by gravity flow and can be operated for 24 hours continuously.

4. Sludge treatment:

the treatment of the wastewater by the ultra micro separation module 30 results in a small amount of sludge in the surface of the ultra micro separation module 30 that contacts the reactive clarifier 36. The sludge is discharged through a slag scraping device 37 into a slag discharge tank 38. The sludge in the slag discharging tank 38 is dried in a sludge drying tank outside the device for 5-7 days or is dehydrated by a sludge dehydrating device and then is transported outside for treatment and disposal.

The embodiment of the utility model provides an in, integration sewage treatment device adopts the removal bed biofilm reactor module and the super little separation module realization through pipe connection, consequently, can realize removing the advantage of bed biofilm reactor and super little separation simultaneously to overcome removal bed biofilm reactor's area big and the shortcoming of super little separation to the dissolubility pollutant removal inefficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An integrated sewage treatment device based on MBBR and ultramicro separation is characterized in that the integrated sewage treatment device comprises a moving bed biofilm reactor module and an ultramicro separation module, the moving bed biofilm reactor module and the ultramicro separation module are connected through a pipeline,

wherein, the ultramicro separation module includes ultramicro bubble generating device, first reaction tank, second reaction tank and contact reaction separation clarification tank, and wherein, ultramicro bubble generating device and contact reaction separation clarification tank intercommunication, first reaction tank and second reaction tank pass through communicating pipe and cross water, and second reaction tank and contact reaction separation clarification tank pass through the pipeline and cross water.

2. The integrated wastewater treatment facility of claim 1, further comprising an operation control zone, wherein the operation control zone is programmed for water inlet, water outlet and aeration of the moving bed biofilm reactor module, and for dosing, solid-liquid separation, sludge scraping and sludge discharge of the ultra-micro separation module.

3. The integrated sewage treatment apparatus of claim 1, wherein the moving bed biofilm reactor module comprises a main tank divided into a plurality of reaction zones by partitions, wherein water passing holes are formed at the bottom or upper part of the partitions so that sewage is passed through the water in the plurality of reaction zones in a vertically baffled manner.

4. The integrated wastewater treatment apparatus of claim 1, wherein the moving bed biofilm reactor module further comprises a water distribution system and a water collection system respectively located at the water inlet end and the water outlet end of the moving bed biofilm reactor module.

5. The integrated wastewater treatment facility of claim 4, wherein the water distribution system and the water collection system each comprise a perforated water distribution pipe and a perforated water collection pipe.

6. The integrated wastewater treatment plant of claim 3, wherein the moving bed biofilm reactor module further comprises: an aeration system for aerating and supplying oxygen to the plurality of reaction zones; suspended biological packing located in the plurality of reaction zones.

7. The integrated sewage treatment apparatus of claim 1, wherein the ultra-micro separation module further comprises a first and a second dosing tank for adding reaction agents to the first and the second reaction tanks, respectively.

8. The integrated sewage treatment apparatus of claim 1, wherein the ultra-micro separation module further comprises a scum scraper disposed at a top of the contact reaction clarifier, the scum scraper scraping scum on a surface of the contact reaction clarifier into the scum clarifier.

9. The integrated sewage treatment apparatus of claim 8 wherein the ultra-micro separation module further comprises a clean water tank, and the lower portion of the contact reaction clarifier communicates with the clean water tank through a pipe.