CN210457842U

CN210457842U - Circulating flow type sewage treatment device

Info

Publication number: CN210457842U
Application number: CN201921076105.XU
Authority: CN
Inventors: 王北
Original assignee: Shandong Simcere Biological Pharmaceutical Co ltd
Current assignee: Shandong Simcere Biological Pharmaceutical Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-05
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to a circulating flow type sewage treatment device, which comprises an adjusting tank, a serial biomembrane reaction tank system, an anaerobic tank, a circulating pump and a gas compressor, wherein the heights of the adjusting tank, the serial biomembrane reaction tank system and the anaerobic tank are sequentially reduced, the upper end of the anaerobic tank is fixedly connected with a qualified water discharge pipe, the lower end of the anaerobic tank is fixedly connected with one end of a circulating reflux pipe, the other end of the circulating reflux pipe is fixedly connected with the inlet of the circulating pump, the outlet of the circulating pump is connected with the upper end of the serial biomembrane reaction tank system through a pipeline, the gas compressor is fixedly connected with a gas pipeline, and the tail end of the gas pipeline is introduced into the interior of the serial biomembrane; biological fillers are filled in the serial biological film reaction tank system and the anaerobic tank. Can obviously degrade ammonia nitrogen and COD in the sewage, can continuously feed the sewage in a flowing manner, can reach the discharge standard after treatment, and has the advantages of low investment, low energy consumption and stable and reliable operation.

Description

Circulating flow type sewage treatment device

Technical Field

The utility model relates to a circulation flow type sewage treatment plant belongs to environmental protection technical field.

Background

With the development of society, the progress of industrialization and urbanization is accelerated continuously, the problems of industrial wastewater and domestic sewage become more and more serious, and the problem that the water quality is blackened and smelled due to improper treatment of a large amount of industrial wastewater and domestic sewage is discharged into the external environment has seriously influenced the city appearance and the drinking water safety of the city and is not beneficial to the healthy and sustainable development of economy, so that the national flower is put into the sewage treatment engineering vigorously in recent years.

Currently, many sewage treatment systems are available on the market, such as the AO process, the oxidation ditch process, the activated sludge process (SBR process), and the like. The activated sludge process is a commonly applied treatment technology at present, is also called as a common activated sludge process or a traditional activated sludge process, and is suitable for treating sewage containing high organic matters, such as food, brewing, petrochemical industry, urban domestic sewage and the like. The process adopts precipitation, filtration, aeration and secondary precipitation, and an aeration tank and a secondary precipitation tank are main devices. The operating conditions were: sufficient oxygen is supplied, the proper temperature is 10-50 ℃, nutrient substances have the pH value of 6-9, BOD, nitrogen and phosphorus are in a certain proportion, toxic substances in the sewage are in a range which can be borne by bacteria, and the activated sludge process has the defects of poor operation stability, easy sludge expansion and sludge loss and unsatisfactory separation effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists, provide a circulation flow type sewage treatment plant, sewage treatment plant can show ammonia nitrogen and COD content in the degradation sewage, can realize the continuous processing of sewage, and equipment investment is few moreover, and the energy consumption is low, and the operation is reliable and stable, and area is little.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a circulating flow type sewage treatment device comprises an adjusting tank, a serial biomembrane reaction tank system, an anaerobic tank, a circulating pump and a gas compressor, wherein the position heights of the adjusting tank, the serial biomembrane reaction tank system and the anaerobic tank are sequentially reduced, the drop of a sewage utilization space after treatment in the adjusting tank can sequentially and automatically flow to the serial biomembrane reaction tank system and the anaerobic tank for next-stage treatment without providing other power, the energy is saved, the lower end of the adjusting tank is fixedly connected with the upper end of an adjusting water discharge pipe, the lower end of the adjusting water discharge pipe is fixedly connected with the upper end of the serial biomembrane reaction tank system, an adjusting water valve is arranged on the adjusting water discharge pipe, the lower end of the serial biomembrane reaction tank system is connected with the upper end of the anaerobic tank through a communicating pipe, the upper end of the anaerobic tank is fixedly connected with a qualified water discharge pipe, the qualified water discharge pipe is provided with a qualified water outlet valve, the lower end of the anaerobic tank is fixedly connected with one end of a circulating return pipe, the circulating return pipe is provided with a circulating return valve, the other end of the circulating return pipe is fixedly connected with an inlet of the circulating pump, an outlet of the circulating pump is connected with the upper end of the serial biofilm reaction tank system through a pipeline, the gas compressor is fixedly connected with a gas pipeline, and the tail end of the gas pipeline is introduced into the serial biofilm reaction tank system; the anaerobic biological filter is characterized in that a biological filler is filled in the series-connection biological membrane reaction tank system, the biological filler is filled in the anaerobic tank, the biological filler can be suspended in the series-connection biological membrane reaction tank system and the anaerobic tank, aerobic bacteria grow outside the biological filler under the aerobic condition and are used for removing organic matters in sewage, anaerobic bacteria grow inside the biological filler under the anaerobic condition, and denitrification can be performed to denitrify the sewage.

Aerobic conditions exist in the series biomembrane reaction tank system, and aerobic bacteria exist in the series biomembrane reaction tank system; the anaerobic tank is in a closed anaerobic condition, anaerobic bacteria are arranged in the anaerobic tank, sewage to be treated firstly enters the regulating tank to regulate and control the water quality and the water quantity, the pH value and the water temperature of the sewage are regulated, and in addition, the setting of the regulating tank can also be used for accident drainage; the sewage treated in the regulating tank flows into the series-connection biological membrane reaction tank system under the action of space fall, oxygen at the temperature of 30 ℃ is introduced into the series-connection biological membrane reaction tank system through a gas compressor, aerobic microorganisms act, so that the sewage is nitrified in the series-connection biological membrane reaction tank system, and the sewage can keep high nitrification activity to carry out nitrification reaction by adopting the oxygen at the temperature of 30 ℃; the sewage after nitrification treatment automatically flows into an anaerobic tank for denitrification treatment under the action of space fall, if the treated sewage reaches the discharge standard, a qualified water outlet valve is opened, the qualified sewage is discharged from a qualified water discharge pipe, if the sewage is unqualified, a circulating return valve is opened, and the unqualified sewage is recycled to the series-connection biomembrane reaction tank system for further treatment by a circulating pump until the sewage reaches the discharge standard.

The utility model has the advantages that: by adding the biological filler, the sedimentation and the backflow of the activated sludge are not needed, and the defects of the activated sludge are avoided. The biological filler has the advantages of high load, simple construction, small volume, stable and reliable operation, convenient management, convenient maintenance and replacement, and the like. Through the arrangement of the circulating pump and the circulating reflux pipe, the qualified untreated sewage is refluxed to the series connection biological membrane reaction tank system again, and the treated sewage can reach the discharge standard. The treated sewage can reach the discharge standard that COD is less than or equal to 200mg/L, BOD5 and less than or equal to 20mg/L, ammonia nitrogen is less than or equal to 40mg/L, and total phosphorus is less than or equal to 0.5mg/L, SS and less than or equal to 20 mg/L. The utility model discloses can show ammonia nitrogen and COD content in the degradation sewage, can continuously flow with sewage, can reach emission standard in the short time, can save a large amount of spending for manufacturing enterprise and environmental protection enterprise, moreover the utility model discloses the small investment, the energy consumption is low, and the operation is reliable and stable, and area is little, can realize sewage "zero release".

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

further, the series biomembrane reaction tank system comprises a plurality of aerobic tanks and internal flow pipelines, the lower ends of the aerobic tanks are provided with outlets, the upper ends of the aerobic tanks are provided with inlets, the aerobic tanks are connected in series through the internal flow pipelines, and the tail ends of the gas pipelines are led into the aerobic tanks. Workers can calculate the number of the required aerobic tanks according to the sewage quantity and the component content, so that the working efficiency is improved; the height difference also exists between the aerobic tanks, and the flow of the sewage between the aerobic tanks can be automatically realized by utilizing the height difference, so that the energy consumption is saved; the sewage treated in the previous aerobic tank flows from the outlet at the lower end of the aerobic tank to the inlet at the upper end of the next aerobic tank through an internal flow pipeline, so that the sewage can pass through all biological fillers in the aerobic tank for full reaction treatment; the gas pipeline leads oxygen with the temperature of 30 ℃ into the aerobic tank, thereby keeping the aerobic condition in the aerobic tank and realizing the treatment of organic matters in the sewage.

Furthermore, an aeration system is arranged in the aerobic tank, the aeration system comprises a diffusion pipe and aeration heads, the tail end of the gas pipeline is fixedly connected with the diffusion pipe, and the upper end of the diffusion pipe is fixedly connected with a plurality of aeration heads. The aeration system can ensure that the sewage in the aerobic tank can be better contacted with oxygen, thereby improving the nitrification treatment efficiency.

Furthermore, the sewage treatment device is provided with a sedimentation tank, the lower end of the sedimentation tank is provided with a bottom valve, and the side surface of the sedimentation tank is communicated with the upper end of the regulating tank. Based on gravity separation, inorganic particle sediment with large specific gravity in the sewage is discharged, and the bottom valve is arranged to facilitate the removal of the inorganic particle sediment.

Further, the sedimentation tank with the communicating department of equalizing basin is equipped with the scrubbing grid, the scrubbing grid includes curb plate frame, motor and grid subassembly, and the curb plate frame plays the fixed stay effect, curb plate frame inside is equipped with the grid subassembly, motor fixed connection in the curb plate frame upper end. The motor can drive the grid assembly to operate, and the setting of motor and grid assembly can get rid of the great solid granule debris in the sewage and the thing that floats, reduces subsequent processing system's work load to the life of extension circulating pump improves the treatment effeciency.

Further, the biological filler is a three-dimensional elastic hollow filler. The three-dimensional elastic hollow filler is of a hollow structure, can be better suspended in sewage and is a carrier for aerobic bacteria and anaerobic bacteria, the aerobic bacteria grow outside the three-dimensional elastic hollow filler under an aerobic condition and are used for removing organic matters in the sewage, and the anaerobic bacteria grow inside the three-dimensional elastic hollow filler under an anaerobic condition and generate denitrification effect to denitrify the sewage.

Further, the gas pipeline is fixedly connected with one end of a gas pipe branch, the tail end of the gas pipe branch is introduced into the regulating reservoir, oxygen is introduced into the regulating reservoir through the gas pipe branch, and the oxygen-charging and stirring effects are achieved on waste water in the regulating reservoir.

Furthermore, an aeration system is arranged in the regulating reservoir, the aeration system comprises a diffusion pipe and aeration heads, the tail end of the gas pipe branch is fixedly connected with the diffusion pipe, and the upper end of the diffusion pipe is fixedly connected with a plurality of aeration heads. The aeration system in the regulating reservoir can prevent suspended particles in sewage from precipitating and smelling, and can also play a certain degradation effect on organic matters in the sewage, thereby improving the impact resistance and the treatment effect of the whole sewage treatment device.

Furthermore, the upper end of the anaerobic tank is fixedly connected with an exhaust pipe, and the exhaust pipe is provided with a one-way valve. The setting of blast pipe can in time be with the marsh gas discharge that produces in the anaerobic tank, avoids suppressing pressure in the anaerobic tank, and the setting of check valve can ensure to keep anaerobic condition in the anaerobic tank, and when the internal atmospheric pressure of anaerobic tank rose, the check valve was opened, and the internal and external atmospheric pressure of anaerobic tank was balanced, and the check valve was closed.

Furthermore, according to the use requirement, an automatic detection and automatic control system can be additionally arranged on the sewage treatment device, so that the full-automatic operation of sewage treatment is realized, the manual operation is not needed, and the manual input cost is reduced.

The beneficial effect of adopting the further scheme is that: the utility model discloses have good sewage in the filth get rid of the effect, stronger impact load capacity, better nitrogen and phosphorus removal effect, the treatment effeciency is higher, investment and running cost are lower moreover, get rid of efficiently to organic substrate, the system operation is stable. The experiment proves that the utility model saves 20 to 30 percent of the operating cost compared with the traditional one-section method process equipment. The sewage treatment device provides a complete set of aerobic and anaerobic sewage treatment system for sewage treatment, fills the blank of a resource utilization anaerobic sewage treatment system, meets the increasingly growing sewage treatment requirements of society, expands the application range of the sewage treatment system in a plurality of industries, and can effectively promote the sustainable development of economy and environment.

Drawings

FIG. 1 is a schematic view showing the construction of a circulating flow type sewage treatment apparatus according to an embodiment;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic perspective view of an embodiment of a desmear grating;

FIG. 4 is a top view of an aeration system according to an embodiment;

FIG. 5 is a schematic structural diagram of an aeration head in the embodiment;

1 regulating reservoir, 2 anaerobic pool, 3 circulating pump, 4 gas compressor, 5 regulating water discharging pipe, 6 regulating water valve, 7 communicating pipe, 8 qualified water discharging pipe, 9 qualified water outflow valve, 10 circulating reflux pipe, 11 circulating reflux valve, 12 gas pipeline, 13 biological filler, 14 aerobic pool, 15 internal flow pipeline, 16 aeration system, 17 diffusion pipe, 18 aeration head, 19 sedimentation tank, 20 bottom valve, 21 decontamination grid, 22 side plate frame, 23 motor, 24 grid component, 25 gas pipe branch, 26 exhaust pipe, 27 one-way valve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in the figure, the circulating flow type sewage treatment device comprises a regulating reservoir 1, a serial biomembrane reaction tank system, an anaerobic tank 2, a circulating pump 3 and a gas compressor 4, wherein the heights of the positions of the regulating reservoir 1, the serial biomembrane reaction tank system and the anaerobic tank 2 are sequentially reduced, the lower end of the regulating reservoir 1 is fixedly connected with the upper end of a regulating water calandria 5, the lower end of the regulating water calandria 5 is fixedly connected with the upper end of the serial biomembrane reaction tank system, the regulating water calandria 5 is provided with a regulating water valve 6, the lower end of the serial biomembrane reaction tank system is connected with the upper end of the anaerobic tank 2 through a communicating pipe 7, the upper end of the anaerobic tank 2 is fixedly connected with a qualified water calandria pipe 8, the qualified water calandria pipe 8 is provided with a qualified water outflow valve 9, and the lower, a circulating reflux valve 11 is arranged on the circulating reflux pipe 10, the other end of the circulating reflux pipe 10 is fixedly connected with an inlet of the circulating pump 3, an outlet of the circulating pump 3 is connected with the upper end of the serial biofilm reaction tank system through a pipeline, the gas compressor 4 is fixedly connected with a gas pipeline 12, and the tail end of the gas pipeline 12 is introduced into the serial biofilm reaction tank system; the interior of the series biomembrane reaction tank system is filled with biological filler 13, and the interior of the anaerobic tank 2 is filled with the biological filler 13.

The series biomembrane reaction tank system comprises a plurality of aerobic tanks 14 and internal flow pipelines 15, the lower ends of the aerobic tanks 14 are provided with outlets, the upper ends of the aerobic tanks 14 are provided with inlets, the aerobic tanks 14 are connected in series through the internal flow pipelines 15, and the tail ends of the gas pipelines 12 are introduced into the aerobic tanks 14. An aeration system 16 is arranged in the aerobic tank 14, the aeration system 16 comprises a diffusion pipe 17 and an aeration head 18, the tail end of the gas pipeline 12 is fixedly connected with the diffusion pipe 17, and the upper end of the diffusion pipe 17 is fixedly connected with a plurality of aeration heads 18.

The sewage treatment device is provided with a sedimentation tank 19, the lower end of the sedimentation tank 19 is provided with a bottom valve 20, and the side surface of the sedimentation tank 19 is communicated with the upper end of the adjusting tank 1. Sedimentation tank 19 with communicating department of equalizing basin 1 is equipped with scrubbing grid 21, scrubbing grid 21 includes side grillage 22, motor 23 and grid subassembly 24, the inside grid subassembly 24 that is equipped with of side grillage 22, motor 23 fixed connection in side grillage 22 upper end.

The biological filler 13 is a three-dimensional elastic hollow filler. One end of a gas pipe branch 25 is fixedly connected to the gas pipeline 12, and the tail end of the gas pipe branch 25 is introduced into the regulating tank 1. An aeration system 16 is arranged in the adjusting tank 1, the aeration system 16 comprises a diffusion pipe 17 and aeration heads 18, the tail end of the gas pipe branch 25 is fixedly connected with the diffusion pipe 17, and the upper end of the diffusion pipe 17 is fixedly connected with a plurality of aeration heads 18. The upper end of the anaerobic tank 2 is fixedly connected with an exhaust pipe 26, and a one-way valve 27 is arranged on the exhaust pipe 26.

When in use, a worker calculates the number of the required aerobic tanks 14 according to the daily discharge total amount and the component content of the sewage, sets the heights of the adjusting tank 1, the aerobic tanks 14 and the anaerobic tanks 2, and lays the gas pipeline 12, the gas pipe branch 25 and the circulating return pipe 10; then culturing strains, adding aerobic strains into the biological filler 13 in the aerobic tank 14, performing filler biofilm formation to make aerobic strains attached to the periphery of the biological filler 13, adding anaerobic strains into the biological filler 13 in the anaerobic tank 2, performing filler biofilm formation to make anaerobic strains attached to the interior of the biological filler 13; when the growth state of the strain is good, sewage can be added for treatment, microorganisms can grow by depending on organic matters in the sewage, no additional nutrient is needed to be added, the strain can be quickly started after shutdown, and the optimal use effect can be quickly recovered; the circulating flow type sewage treatment device has large buffer capacity, can automatically adjust the concentration peak to enable microorganisms to work normally all the time, has strong impact load resistance, adopts an assembled type, is convenient to transport and install, only needs to add components when the treatment capacity is increased, and is easy to implement.

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. The utility model provides a circulating flow type sewage treatment plant, which is characterized in that, sewage treatment plant include equalizing basin (1), series connection biomembrane reaction tank system, anaerobic tank (2), circulating pump (3) and gas compressor (4), the position height of equalizing basin (1), series connection biomembrane reaction tank system and anaerobic tank (2) reduces in proper order, the upper end of equalizing basin (1) lower extreme fixedly connected with regulation water calandria (5), the lower extreme fixed connection of regulation water calandria (5) the upper end of series connection biomembrane reaction tank system, be equipped with regulation water valve (6) on regulation water calandria (5), the lower extreme of series connection biomembrane reaction tank system passes through communicating pipe (7) and connects the upper end of anaerobic tank (2), qualified water calandria (8) of fixedly connected with in anaerobic tank (2) upper end, be equipped with qualified water outflow valve (9) on the qualified water calandria (8), the lower end of the anaerobic tank (2) is fixedly connected with one end of a circulating return pipe (10), the circulating return pipe (10) is provided with a circulating return valve (11), the other end of the circulating return pipe (10) is fixedly connected with an inlet of the circulating pump (3), an outlet of the circulating pump (3) is connected with the upper end of the serial biofilm reaction tank system through a pipeline, the gas compressor (4) is fixedly connected with a gas pipeline (12), and the tail end of the gas pipeline (12) is introduced into the serial biofilm reaction tank system; the interior of the series biomembrane reaction tank system is filled with biological filler (13), and the interior of the anaerobic tank (2) is filled with the biological filler (13).

2. A sewage treatment plant of the circulating flow type according to claim 1, wherein said series biofilm reaction tank system comprises a plurality of aerobic tanks (14) and internal flow pipes (15), wherein the lower ends of said aerobic tanks (14) are provided with outlets, the upper ends of said aerobic tanks (14) are provided with inlets, said aerobic tanks (14) are connected in series through the internal flow pipes (15), and the ends of said gas pipes (12) are connected into the interior of said aerobic tanks (14).

3. A sewage treatment plant of the circulating flow type according to claim 2, wherein an aeration system (16) is provided inside said aerobic tank (14), said aeration system (16) comprises a diffuser pipe (17) and an aeration head (18), the end of said gas pipeline (12) is fixedly connected with said diffuser pipe (17), and the upper end of said diffuser pipe (17) is fixedly connected with a plurality of said aeration heads (18).

4. A sewage treatment plant of the circulating flow type according to claim 1, wherein said sewage treatment plant is provided with a settling basin (19), a bottom valve (20) is provided at the lower end of said settling basin (19), and the side surface of said settling basin (19) is communicated with the upper end of said conditioning tank (1).

5. A sewage treatment unit of the circulating flow type according to claim 4, wherein a decontamination grid (21) is arranged at the communication position of the settling tank (19) and the adjusting tank (1), the decontamination grid (21) comprises a side plate frame (22), a motor (23) and a grid assembly (24), the grid assembly (24) is arranged in the side plate frame (22), and the motor (23) is fixedly connected to the upper end of the side plate frame (22).

6. A sewage treatment plant of the circulating flow type according to claim 1, characterised in that said biological filler (13) is a three-dimensional elastic hollow filler.

7. A sewage treatment plant of the circulating flow type according to claim 1, wherein one end of a gas pipe branch (25) is fixedly connected to said gas pipe (12), and the end of said gas pipe branch (25) opens into the interior of said conditioning tank (1).

8. A sewage treatment plant of the circulating flow type according to claim 7, wherein an aeration system (16) is provided inside said conditioning tank (1), said aeration system (16) comprises a diffuser pipe (17) and aeration heads (18), the end of said gas pipe branch (25) is fixedly connected with said diffuser pipe (17), and the upper end of said diffuser pipe (17) is fixedly connected with a plurality of said aeration heads (18).

9. A sewage treatment plant of the circulating flow type according to claim 1, wherein the upper end of said anaerobic tank (2) is fixedly connected with an exhaust pipe (26), said exhaust pipe (26) being provided with a check valve (27).