CN217351092U - Small-size air-lift type contact oxidation method sewage treatment plant - Google Patents
Small-size air-lift type contact oxidation method sewage treatment plant Download PDFInfo
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- CN217351092U CN217351092U CN202220804055.8U CN202220804055U CN217351092U CN 217351092 U CN217351092 U CN 217351092U CN 202220804055 U CN202220804055 U CN 202220804055U CN 217351092 U CN217351092 U CN 217351092U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model provides a small-sized air-lift type sewage treatment device by contact oxidation, which comprises a circulating degradation unit arranged horizontally and a precipitation unit communicated with the circulating degradation unit; the circular degradation unit comprises an upflow channel and a downflow channel, and the upflow channel sequentially comprises a biological suspended filler, a water distribution device and an aeration device from top to bottom; the upper part and the lower part of the upflow channel are both communicated with the downflow channel, and form a circulating degraded water flow channel under the action of the aeration device; the bottom of the downflow channel is communicated with the bottom of the sedimentation unit, the top of the sedimentation unit is provided with a water outlet pipe, and the bottom of the sedimentation unit is provided with a sludge discharge pipe. The equipment has simple structure and good sewage degradation effect, and is suitable for small-water-volume sewage treatment engineering.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, especially, relate to a small-size air-lift contact oxidation method sewage treatment plant.
Background
Along with the increase of the environmental treatment intensity of the country, the sewage treatment project is gradually improved, and the market demands a large amount of small sewage treatment equipment with higher water outlet requirements. Traditional sewage treatment has different functional areas, needs more equipment to run in different areas, and equipment structure is complicated, and equipment, power consumption, artifical the input are great, and uneconomic and unreasonable to little water yield engineering.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a small-size air-lift contact oxidation sewage treatment plant that simple structure, degradation are effectual, are applicable to little water yield engineering.
The technical scheme of the utility model is realized like this: the utility model provides a small-sized air stripping type sewage treatment device by contact oxidation, which comprises a circulating degradation unit and a precipitation unit, wherein the circulating degradation unit is horizontally arranged, and the precipitation unit is communicated with the circulating degradation unit; the circular degradation unit comprises an upflow channel and a downflow channel which are horizontally arranged, and the upflow channel sequentially comprises a biological suspended filler, a water distribution device and an aeration device from top to bottom; the upper part and the lower part of the upflow channel are both communicated with the downflow channel, and form a circulating degraded water flow channel under the action of the aeration device; the bottom of the downflow channel is communicated with the bottom of the precipitation unit, the top of the precipitation unit is provided with a water outlet pipe, and the top of the precipitation unit is provided with a sludge discharge pipe.
On the basis of the technical scheme, preferably, the sewage treatment device is internally provided with a first annular partition plate and a second annular partition plate, the first annular partition plate is positioned outside the second annular partition plate, an upflow channel is arranged inside the second annular partition plate, a downflow channel is arranged between the first annular partition plate and the second annular partition plate, and a precipitation unit is arranged between the first annular partition plate and the sewage treatment device shell.
On the basis of the technical scheme, preferably, the water distribution device comprises a water inlet pipe and a water distribution pipe, wherein the water distribution pipe is an annular perforated pipeline and is positioned at the bottom of the upflow channel; one end of the water inlet pipe penetrates through the shell of the sewage treatment device, and the other end of the water inlet pipe is communicated with the water distribution pipe.
On the basis of the above technical scheme, preferably, the aeration device is an aeration disc or an aeration pipe.
On the basis of the above technical scheme, preferably, a flow reducing plate is installed at the bottom of the first annular partition plate, and the flow reducing plate is inclined towards the bottom of the second annular partition plate.
On the basis of the technical scheme, preferably, the water outlet pipe is annular, the top of the water outlet pipe is provided with a through hole, the water outlet pipe is connected with a water discharge pipe, and the water discharge pipe penetrates through the sewage treatment device and is communicated with the outside.
On the basis of the technical scheme, preferably, the sludge discharge pipe is provided with a valve.
On the basis of the technical scheme, the sewage treatment device preferably further comprises a fan, wherein the fan is installed outside the sewage treatment device, and the aeration device is connected with the fan.
On the basis of the above technical scheme, preferably, the sewage treatment device is an integrally formed hollow cavity, the upper part of the sewage treatment device is in a hollow cylindrical shape, and the lower part of the sewage treatment device is in a truncated inverted conical shape.
On the basis of the technical scheme, preferably, the biological suspended filler is one of soft filler, semi-soft filler and combined filler; the material is one or a combination of more of plastic, hydroformylation fiber and terylene.
The utility model discloses a small-size air-lift contact oxidation method sewage treatment plant has following beneficial effect for prior art:
(1) the equipment is simple in structure, the two annular partition plates divide the equipment into three annular regions which are not completely separated, the upflow channel, the downflow channel and the sedimentation unit are connected in series, and the effects of sewage circulation degradation and sludge sedimentation are met.
(2) The aeration system not only provides oxygen for biochemical reaction, but also can drive liquid through gas, so that sewage can be circularly degraded for many times in the upflow channel and the downflow channel, and the sewage purification effect is achieved.
(3) The whole lower part of the equipment is a tank body with a truncated inverted cone, and the slope of the lower half part of the equipment plays a role in diversion, so that settled sludge and flocs are concentrated at the bottom, and the sludge discharge is easier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a sectional view showing the effect of the small size apparatus for contact oxidation sewage treatment by air stripping in the form of a front view;
FIG. 2 is a diagram showing different channel structures of the small-sized air-lift contact oxidation sewage treatment plant of the present invention;
FIG. 3 is a perspective view of the top view of the small-sized apparatus for treating sewage by contact oxidation of air stripping type.
In the figure: 1-circular degradation unit, 2-precipitation unit, 11-upflow channel, 12-downflow channel, 111-biological suspended filler, 112-water distribution device, 113-aeration device, 211-water outlet pipe, 212-sludge discharge pipe, 1121-water inlet pipe, 1122-water distribution pipe, 3-first annular partition plate, 4-second annular partition plate, 31-downflow plate, 2111-through hole, 2112-water discharge pipe, 222-valve, 5-fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in figures 1-3, the small-sized air stripping type contact oxidation sewage treatment device of the utility model comprises a horizontal circulating degradation unit 1 and a precipitation unit 2 communicated with the circulating degradation unit 1; wherein the circular degradation unit 1 comprises an upflow channel 11 and a downflow channel 12 which are horizontally arranged, and the upflow channel 11 sequentially comprises a biological suspended filler 111, a water distribution device 112 and an aeration device 113 from top to bottom; the upper part and the lower part of the upflow channel 11 are both communicated with the downflow channel 12, and the upflow channel 11 and the downflow channel 12 form a circulating degraded water flow channel under the action of the aeration device 113; the bottom of the downflow channel 12 is communicated with the bottom of the sedimentation unit 21, the top of the sedimentation unit 21 is provided with a water outlet pipe 211, and the bottom is provided with a sludge discharge pipe 212.
The aeration device 113 provides oxygen for biochemical reaction, and drives liquid to flow upwards through gas, so that pressure difference is generated between the bottom and the top of the upflow channel 11. The sewage flows from the bottom to the top of the upflow channel 11 under the drive of the gas, flows into the downflow channel 12, flows to the bottom of the downflow channel 12 under the action of self gravity, then flows into the bottom of the upflow channel 11 under the action of pressure difference, completes a cycle, and participates in biochemical degradation reaction when flowing through the biological suspended filler 111 in the cycle process, thereby playing the effect of purifying water.
In a specific embodiment, the water distribution device 112 includes a water inlet pipe 1121 and a water distribution pipe 1122, and the water distribution pipe 1122 is an annular perforated pipe and is located at the bottom of the upflow channel 11; one end of the water inlet tube 1121 penetrates the sewage treatment apparatus housing, and the other end is communicated with the water distribution tube 1122. The sewage enters the upflow channel 11 through the pressurizing device to avoid the occurrence of reverse flow, and the pressurizing device 1123 also increases the upward flowing speed of the sewage in the upflow channel 11. The water distribution pipe 1122 with the annular hole has the function of increasing the flow of the sewage in the upflow channel 11.
In the embodiment, the aeration device 113 is an aeration disc or an aeration pipe, and the aeration device 113 increases the density difference between the upflow channel 11 and the downflow channel 12.
In a specific embodiment, the sewage treatment device is an integrally formed hollow cavity, the upper part of the sewage treatment device is in a hollow cylindrical shape, the lower part of the sewage treatment device is in a truncated inverted cone shape, and the slope of the truncated inverted cone structure at the lower part plays a role in guiding flow, so that settled sludge and flocs are concentrated at the bottom, and the sludge is easier to discharge.
In a specific embodiment, a first annular partition plate 3 and a second annular partition plate 4 are installed inside the sewage treatment device, the first annular partition plate 3 and the second annular partition plate 4 are coaxial with the sewage treatment device, the first annular partition plate 3 is located outside the second annular partition plate 4, an upflow channel 11 is arranged inside the second annular partition plate 4, a downflow channel 12 is arranged between the first annular partition plate 3 and the second annular partition plate 4, and a sedimentation unit 2 is arranged between the first annular partition plate 3 and the equipment shell.
Specifically, in order to improve the sewage circulating flow effect, the second annular partition plate 4 is arranged in a suspending manner, the highest point of the first annular partition plate 3 is higher than the highest point of the second annular partition plate 4, and the lowest point of the first annular partition plate 3 is higher than the lowest point of the second annular partition plate 4. The sewage enters from the bottom of the upflow channel 11, then flows into the downflow channel 12 from the top of the second annular partition plate 4, and then flows into the bottom of the upflow channel 11 from the bottom of the downflow channel 12, so that multiple circulation is realized.
Specifically, the mounting position of the water outlet pipe 211 is higher than the highest point of the second annular partition plate 4, and the mounting position of the sludge discharge pipe (212) is lower than the lowest point of the second annular partition plate 4.
Specifically, in order to enhance the aeration effect, the aeration device 113 is installed below the second annular partition plate 3. Specifically, in order to increase the sewage circulation degradation effect, a flow reducing plate 31 is installed at the bottom of the first annular partition plate 3, the flow reducing plate 31 inclines towards the bottom of the second annular partition plate 4, and the lowest point of the flow reducing plate 31 is higher than that of the second annular partition plate 4. In the downflow channel 12, the sewage enters the upflow channel 11 under the action of the gravity of the sewage and the downflow plate 31 to participate in the cyclic biodegradation reaction.
In a specific embodiment, in order to increase the water output, the water outlet pipe 211 is annular, the top of the water outlet pipe 211 is provided with a through hole 2111, the water outlet pipe 211 is connected with a water discharge pipe 2112, and the water discharge pipe 2112 penetrates through the sewage treatment device and is communicated with the outside. The water after biodegradation enters the precipitation unit 21, flows into the through hole 2111, enters the annular water outlet pipe 211 and is discharged out of the equipment.
In the embodiment, a valve 222 is installed on the sludge discharge pipe 212 for controlling the amount of sludge discharged.
In a specific embodiment, in order to increase the aeration amount, the sewage treatment device further comprises a fan 5, the fan 5 is installed outside the sewage treatment device, and the aeration device 113 is connected with the fan 5.
In a specific embodiment, the biological suspending filler 111 is one of soft filler, semi-soft filler and combined filler; the material is one or a combination of more of plastic, hydroformylation fiber and terylene.
The utility model discloses a theory of operation: the sewage enters a water distribution device through a pressurizing device and then enters the bottom of an upflow channel; the aeration system provides power for water inflow, air is supplied to mix gas and liquid in the upflow channel, so that density difference is generated between the upflow channel and the downflow channel, sewage flows upwards in the upflow channel, and after entering the downflow channel from the top end of the second annular partition plate, most of mixed liquid is mixed with the water inflow at the bottom of the second annular partition plate again and enters the upflow channel; the biological suspended filler is arranged in the upflow channel, the biological suspended filler can be attached to and grow a biological membrane through continuous washing of water flow in the operation debugging stage, and in the process of multiple circulation of the mixed liquid in the downflow channel and the upflow channel, the active sludge in the mixed liquid is combined with the biological membrane on the filler, so that pollutants in sewage are degraded through biochemical degradation. In addition, the dissolved oxygen concentration difference exists between the upflow channel and the downflow channel, so that an anoxic and aerobic zone environment is formed, and the nitrification and denitrification efficiency in the circulation process of the mixed liquid is improved.
The sewage mixed liquor after degradation enters the precipitation unit along the bottom of the first annular partition plate, the liquid flows upwards, the sludge and the flocs settle downwards, and the sludge and the flocs slide to the bottom of the equipment along the slope of the lower part of the equipment and are finally discharged through the sludge discharge pipe. And the settling velocity of partial sludge flocs is the same as the rising velocity of water flow, so that a suspension layer is formed in the middle of the equipment, floating fine particle suspended matters can be intercepted, and the settling efficiency is improved. Finally, the effluent is clarified and then flows into a top annular water outlet pipe and is discharged out of the equipment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A small-size air stripping formula contact oxidation method sewage treatment plant which characterized in that: comprises a horizontal cyclic degradation unit (1) and a precipitation unit (2) communicated with the cyclic degradation unit (1); the circular degradation unit (1) comprises an upflow channel (11) and a downflow channel (12) which are horizontally arranged, wherein the upflow channel (11) sequentially comprises a biological suspended filler (111), a water distribution device (112) and an aeration device (113) from top to bottom; the upper part and the lower part of the upflow channel (11) are both communicated with the downflow channel (12), and a circulating degraded water flow channel is formed under the action of an aeration device (113); the bottom of the downflow channel (12) is communicated with the bottom of the sedimentation unit (2); the top of the precipitation unit (2) is provided with a water outlet pipe (211), and the bottom of the precipitation unit is provided with a sludge discharge pipe (212).
2. The small scale apparatus for treating sewage by contact oxidation in an air stripping type according to claim 1, wherein: sewage treatment plant internally mounted has first annular baffle (3) and second annular baffle (4), and first annular baffle (3) are located second annular baffle (4) outsidely, second annular baffle (4) are inside to be upflow passageway (11), are downflow passageway (12) between first annular baffle (3) and second annular baffle (4), be precipitation unit (2) between first annular baffle (3) and the sewage treatment plant casing.
3. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 2, wherein: the bottom of the first annular partition plate (3) is provided with a flow reducing plate (31), and the flow reducing plate (31) inclines towards the bottom of the second annular partition plate (4).
4. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 1, wherein: the water distribution device (112) comprises a water inlet pipe (1121) and a water distribution pipe (1122), wherein the water distribution pipe (1122) is an annular perforated pipeline and is positioned at the bottom of the upflow channel (11); one end of the water inlet pipe (1121) penetrates through the shell of the sewage treatment device, and the other end of the water inlet pipe is communicated with the water distribution pipe (1122).
5. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 1, wherein: the aeration device (113) is an aeration disc or an aeration pipe.
6. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 1, wherein: the water outlet pipe (211) is annular, the top of the water outlet pipe is provided with a through hole (2111), the water outlet pipe (211) is connected with a drain pipe (2112), and the drain pipe (2112) penetrates through the shell of the sewage treatment device to be communicated with the outside.
7. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 1, wherein: and a valve (222) is arranged on the sludge discharge pipe (212).
8. The small scale apparatus for treating sewage by contact oxidation in a stripping type according to claim 1, wherein: the sewage treatment device is characterized by further comprising a fan (5), wherein the fan (5) is installed outside the sewage treatment device, and the aeration device (113) is connected with the fan (5).
9. The small scale apparatus for treating sewage by contact oxidation in an air stripping type according to claim 1, wherein: the sewage treatment device is an integrally formed hollow cavity, the upper part of the sewage treatment device is in a hollow cylindrical shape, and the lower part of the sewage treatment device is in a truncated inverted cone shape.
10. The small scale apparatus for treating sewage by contact oxidation in an air stripping type according to claim 1, wherein: the biological suspended filler (111) is one of soft filler, semi-soft filler and combined filler; the material is one or a combination of more of plastic, hydroformylation fiber and terylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220804055.8U CN217351092U (en) | 2022-04-08 | 2022-04-08 | Small-size air-lift type contact oxidation method sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220804055.8U CN217351092U (en) | 2022-04-08 | 2022-04-08 | Small-size air-lift type contact oxidation method sewage treatment plant |
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| Publication Number | Publication Date |
|---|---|
| CN217351092U true CN217351092U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220804055.8U Active CN217351092U (en) | 2022-04-08 | 2022-04-08 | Small-size air-lift type contact oxidation method sewage treatment plant |
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| Country | Link |
|---|---|
| CN (1) | CN217351092U (en) |
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2022
- 2022-04-08 CN CN202220804055.8U patent/CN217351092U/en active Active
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