CN109987701B - Water treatment biochemical tank and water treatment process - Google Patents
Water treatment biochemical tank and water treatment process Download PDFInfo
- Publication number
- CN109987701B CN109987701B CN201910164275.1A CN201910164275A CN109987701B CN 109987701 B CN109987701 B CN 109987701B CN 201910164275 A CN201910164275 A CN 201910164275A CN 109987701 B CN109987701 B CN 109987701B
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- tank
- water
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- aerobic
- anoxic
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 148
- 230000005484 gravity Effects 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 abstract description 6
- 238000012856 packing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Abstract
The invention discloses a water treatment biochemical tank and a water treatment process, wherein the water treatment biochemical tank comprises an anoxic tank and an aerobic tank, a water inlet is arranged in the anoxic tank, a water outlet is arranged in the aerobic tank, fillers are put in the anoxic tank and the aerobic tank, a water outlet 11 for supplying water and fillers to flow from the anoxic tank to the aerobic tank is arranged between the anoxic tank and the aerobic tank, and a backflow channel for supplying water and fillers to flow back to the anoxic tank is also arranged between the anoxic tank and the aerobic tank. The filler can circularly flow in the whole water treatment biochemical tank to achieve dynamic balance, an interception net is not needed, and the problem of filler accumulation is avoided.
Description
Technical Field
The invention relates to the technical field of water treatment.
Background
At present, in the existing water treatment process, fillers are put in an anoxic tank and an aerobic tank and used for microbial film formation so as to decompose organic matters in water. In the process that water sequentially flows through the anoxic tank, enters the aerobic tank and flows out through the water outlet, fillers are continuously accumulated on the interception net between different areas, and the water flow is blocked when the fillers are excessively accumulated, so that the fillers even overflow. Therefore, packing accumulation is always an unavoidable problem in the operation process of the water treatment biochemical tank, and the shutdown for cleaning the accumulated packing can cause great economic loss, and the water treatment progress requirement is seriously influenced.
Disclosure of Invention
The invention aims to provide a water treatment biochemical tank and a water treatment process for avoiding filler accumulation.
The invention adopts the technical scheme that the water treatment biochemical tank comprises an anoxic tank and an aerobic tank, wherein a water inlet is arranged in the anoxic tank, a water outlet is arranged in the aerobic tank, fillers are put in the anoxic tank and the aerobic tank, a water outlet for water and fillers to flow from the anoxic tank to the aerobic tank is arranged between the anoxic tank and the aerobic tank, and a backflow channel for water and fillers to flow back to the anoxic tank is also arranged between the anoxic tank and the aerobic tank.
The density of the filling materials put in the anoxic tank is larger than that of the water, the density of the filling materials put in the aerobic tank is smaller than that of the water, and the water passing port is positioned at the upper end of the tank wall.
The opening of the reflux channel in the aerobic tank is positioned at the bottom end of the tank wall.
The bottom of the opening of the reflux passage of the aerobic tank is not provided with an aeration device.
The opening of the reflux channel in the aerobic tank is positioned at the upper end of the tank wall.
The back flow channel is internally provided with a power device for driving water and filling materials to flow back to the anoxic tank.
The water treatment tank is of a push-flow gallery type structure, a return port is arranged at the water outlet of the aerobic filler tank, and the return port is communicated with the rear end of the aerobic filler tank and the front end of the aerobic filler tank.
The feed back mouth is located the pool wall upper end.
The water treatment biochemical tank has the structure as follows, and comprises an anoxic tank and an aerobic tank, wherein a water inlet is arranged in the anoxic tank, a water outlet is arranged in the aerobic tank, fillers are put in the anoxic tank and the aerobic tank, a water outlet for water and fillers to flow from the anoxic tank to the aerobic tank is arranged between the anoxic tank and the aerobic tank, and a backflow channel for water and fillers to flow back to the anoxic tank is also arranged between the anoxic tank and the aerobic tank;
the water flows into the anoxic tank from the water inlet, the filler is distributed in the anoxic tank, the water in the anoxic tank and the filler are driven by the power device to reciprocate, the water carries the filler to enter the aerobic tank through the water gap, and when the filler flows through the opening of the backflow channel of the aerobic tank, the filler is conveyed back to the anoxic tank along with the water flow, and the water discharge of the water outlet is consistent with the water inflow of the water inlet.
The density of the filler put in the anoxic tank is larger than that of water, the filler is large-specific-gravity filler, the density of the filler put in the aerobic tank is smaller than that of water, the filler is small-specific-gravity filler, and a water passing port is arranged at the upper end of the tank wall;
the water flows into the anoxic tank from the water inlet, the large-specific-gravity filler is distributed in the anoxic tank, the large-specific-gravity filler in the anoxic tank reciprocates under the drive of the power device, most of the large-specific-gravity filler moves at the middle and lower parts, a small amount of the large-specific-gravity filler is close to the liquid level, part of the large-specific-gravity filler is taken away when the water flow enters the aerobic tank from the water outlet, the small-specific-gravity filler is distributed in the aerobic tank, the height of the large-specific-gravity filler and the small-specific-gravity filler is lower than that of the small-specific-gravity filler when flowing through the opening of the backflow channel of the aerobic tank, the height of the small-specific-gravity filler which enters the anoxic tank is close to the liquid level and returns to the aerobic tank from the water outlet, and the water drainage quantity of the water outlet is consistent with the water inlet water inflow.
The invention has the beneficial effects that the filler circularly flows between the anoxic tank and the aerobic tank, and only a small amount of filler leaves the anoxic tank to carry out the whole circulation in the operation process of the tank, so that the overall microbial environments of the anoxic tank and the aerobic tank are not influenced. The filler in the aerobic tank can enter the anoxic tank through the backflow channel, and the filler in the anoxic tank and the filler in the aerobic tank can be automatically distributed in the whole circulation process due to different densities, so that a dynamic balance is formed, and the problem of filler accumulation is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a structural diagram of another embodiment.
FIG. 3 is a diagram of a fully mixed water treatment tank.
Marked in the figure as: 1-an anoxic tank, 2-an aerobic tank, 10-a water inlet, 11-a water passing port, 12-a water outlet, 22-a backflow channel, 21-a feed back port, 8-a filler and 3-an interception net.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Embodiment one:
as shown in figure 1, the biochemical pool for water treatment comprises an anoxic pool 1 and an aerobic pool 2, a water inlet 10 is arranged in the anoxic pool 1, a water outlet 12 is arranged in the aerobic pool 2, fillers 8 with the same density are put in the anoxic pool 1 and the aerobic pool 2, water in the anoxic pool and the fillers 8 flow back and forth in the anoxic pool 1 under the driving of a power device, water supply and water passing ports 11 for the fillers 8 flowing from the anoxic pool 1 to the aerobic pool 2 are arranged between the anoxic pool 1 and the aerobic pool 2, the water passing ports 11 can be positioned at the upper end or the middle part of a pool wall, and when water in the anoxic pool 1 enters the aerobic pool 2 through the water ports 11, a small amount of fillers 8 in the anoxic pool 1 can be carried into the aerobic pool 2. The filler 8 entering the aerobic tank 2 moves along with the water body flowing in the aerobic tank, a backflow channel 22 for supplying water and enabling the filler 8 to flow back to the anoxic tank 1 is arranged between the anoxic tank 1 and the aerobic tank 2, and when the filler flows through an opening of the backflow channel 22, the filler and a small amount of water are conveyed back to the anoxic tank 1.
Example two
As shown in figure 1, the biochemical water treatment tank comprises an anoxic tank 1 and an aerobic tank 2, a water inlet 10 is arranged in the anoxic tank 1, a water outlet 12 is arranged in the aerobic tank 2, the density of the filler 8 put in the anoxic tank 1 is higher than that of water, the filler is a large specific gravity filler, the density of the filler 8 put in the aerobic tank 2 is lower than that of water, the filler is a small specific gravity filler, and a water passing port 11 for communicating the anoxic tank 1 and the aerobic tank 2 is positioned at the upper end of a tank wall.
The water body and the filler in the anoxic tank 1 flow back and forth in the anoxic tank 1 under the drive of the power device, a water passing port 11 for water supply and filler to flow from the anoxic tank 1 to the aerobic tank 2 is arranged between the anoxic tank 1 and the aerobic tank 2, the water passing port 11 is positioned at the upper end of the tank wall, and when the high specific gravity filler in the anoxic tank 1 moves in the anoxic tank 1, the total filler tends to sink away from the liquid level. Meanwhile, as the water passing port 11 is positioned at the upper end of the tank wall, when water enters the aerobic tank 2 through the water passing port 11, only a small amount of large-specific gravity filler can be filled into the aerobic tank 2.
The figure 1 shows a water treatment biochemical pool with a push-flow gallery type structure, wherein most of the area in the aerobic pool 2 is distributed with filler, and an interception net 3 or a partition wall is arranged in front of a water outlet 12 to prevent the filler from flowing out, and the area in the aerobic pool 2, which is distributed with filler, is called an aerobic filler pool.
The large specific gravity filler entering the aerobic tank 2 moves along with the water flow of the aerobic tank, a backflow channel 22 for supplying water and flowing the filler back to the anoxic tank 1 is also arranged between the anoxic tank 1 and the aerobic tank 2, and in the water treatment biochemical tank with a push-flow gallery type structure, the opening of the backflow channel 22 is also arranged at the tail end of the aerobic filler tank, and the bottom of the aerobic tank can be provided with no aeration device, so that the large specific gravity filler is more beneficial to sinking, and meanwhile, the opening is positioned at the bottom end of the tank wall, namely the height close to the bottom of the tank. The area not more than 1/3 of the height of the liquid surface from the bottom of the tank can be called the bottom end of the tank wall. When the filler reaches the end of the aerobic filler pool along with water flow, the filler with high specific gravity is deposited at the opening of the backflow channel 22. Through devices such as propeller, special water pump, air stripping, etc., the drive water and filler flow back to anoxic tank 1 through backflow channel 22, and big proportion filler and a small amount of water are carried back to anoxic tank 1, need not artifical letter sorting, and based on the difference of density, big proportion filler can constantly escape and return anoxic tank 1 in whole operation in-process.
Even if a small amount of small specific gravity filler enters the anoxic tank 1 through the backflow passage 22, the amount of the small specific gravity filler is small, the water treatment effect of the anoxic tank 1 is not affected, the small specific gravity filler also runs at a height closer to the liquid level after entering the anoxic tank 1, the water passing port 11 is arranged at the upper end of the tank wall, and the small specific gravity filler can return to the aerobic tank 2 from the water passing port 11 more easily. The dynamic automatic distribution of the large specific gravity filler and the small specific gravity filler ensures the water treatment effect and avoids the work of filler interception. The water treatment biochemical tank can run continuously and stably for a long time, is not stopped due to packing accumulation, and does not need interception equipment and intercepted packing evacuation work.
Example III
As shown in fig. 2, in order to better separate the high specific gravity filler and the low specific gravity filler in the aerobic tank 2 on the basis of the second embodiment, a feed back opening 21 may be disposed in the aerobic tank, and the feed back opening 21 communicates with the rear end of the aerobic tank and the front end of the aerobic tank.
The feed back opening 21 is positioned at the upper end of the tank wall, because the small specific gravity filler is positioned at a higher liquid level in the aerobic tank, the small specific gravity filler can be more efficiently conveyed back to the starting end of the aerobic tank 2 by the higher position of the feed back opening 21, the opening of the return channel 22 is also positioned at the tail end of the aerobic tank 2, the small specific gravity filler is dispersed by the feed back opening 21, the quantity of the small specific gravity filler entering the anoxic tank 1 through the return channel 22 is further reduced, and the filler separation rate is higher.
The feed back opening 21 can be communicated with the tail end of the aerobic tank and the starting end of the aerobic filling tank, so that the circulation of the filling in the whole aerobic filling tank is realized. But according to the working condition, the process and the construction convenience requirements, the position of the feed back opening 21 can be adjusted, and the feed back opening 21 can be arranged at a position which is a distance away from the extreme end of the aerobic filling tank and a position which is a distance away from the initial end of the aerobic filling tank. The reciprocating circulation of the filler in the aerobic filler pool can be realized, and the requirements of different distribution densities of the filler in the aerobic filler pool can be met.
Example IV
On the basis of the third embodiment, the feed back opening 21 and the return channel 22 can be integrated into a whole, a cavity is formed by the feed back opening 21 and the return channel, an inlet is arranged on the cavity, the inlet is positioned in the aerobic tank 2, the height of the inlet is not limited, both the high specific gravity filler and the low specific gravity filler can enter the cavity, the anoxic tank 1 and the aerobic tank 2 are also provided with outlets, the height of the outlet leading to the anoxic tank 1 is lower, the height of the outlet leading to the aerobic tank 2 is higher, and the high specific gravity filler and the low specific gravity filler can be further separated in the cavity.
Example five
As shown in fig. 3, the water treatment biochemical tank is of a complete mixing structure and comprises an anoxic tank 1 and an aerobic tank 2 which are sleeved in an annular mode, a water inlet 10 is formed in the anoxic tank 1, a water outlet 12 is formed in the aerobic tank 2, the density of the filler 8 put in the anoxic tank 1 is higher than that of water, the filler is large-specific-gravity filler, the density of the filler 8 put in the aerobic tank 2 is lower than that of water, the filler is small-specific-gravity filler, and a water passing port 11 for communicating the anoxic tank 1 and the aerobic tank 2 is arranged at the upper end of a tank wall.
The large specific gravity filler in the anoxic tank 1 moves circularly along with water, a water passing port 11 for water supply and filler to flow from the anoxic tank 1 to the aerobic tank 2 is arranged between the anoxic tank 1 and the aerobic tank 2, the water passing port 11 is arranged at the upper end of the tank wall, and when the large specific gravity filler in the anoxic tank 1 moves in the anoxic tank 1, the total filler tends to sink and is far away from the liquid level. Meanwhile, as the water passing port 11 is positioned at the upper end of the tank wall, when water enters the aerobic tank 2 through the water passing port 11, only a small amount of high-specific gravity filler of the anoxic tank 1 enters the aerobic tank 2.
The large specific gravity filler entering the aerobic tank 2 moves along with the water body flowing in the aerobic tank, a backflow channel 22 for supplying water and flowing back to the anoxic tank 1 is arranged between the anoxic tank 1 and the aerobic tank 2, and when the large specific gravity filler flows through the opening of the backflow channel 22, the large specific gravity filler and a small amount of water are conveyed back to the anoxic tank 1. Under the aeration effect of the aerobic tank, the small specific gravity filler and the large specific gravity filler are mixed to a certain extent, and the anoxic tank 1 which is fed by the small specific gravity filler through the backflow channel 22 is also provided, so that the water treatment effect of the anoxic tank 1 is not affected due to the small quantity of the small specific gravity filler, the small specific gravity filler can also run at a height which is closer to the liquid level after fed into the anoxic tank 1, the water passing port 11 is arranged at the upper end of the tank wall, and the small specific gravity filler can return to the aerobic tank 2 from the water passing port 11 more easily. Without manual sorting, the large specific gravity filler can continuously escape and return to the anoxic tank 1 in the whole operation process based on different densities, and the small specific gravity filler can also continuously return to the aerobic tank. The dynamic automatic distribution of the high-density and small-specific gravity filler ensures the water treatment effect and avoids the work of filler interception. The water treatment biochemical tank can run continuously and stably for a long time, is not stopped due to packing accumulation, and does not need interception equipment and intercepted packing evacuation work.
Claims (5)
1. The biochemical pool process for water treatment comprises an anoxic pool (1) and an aerobic pool (2), wherein a water inlet (10) is formed in the anoxic pool (1), a water outlet (12) is formed in the aerobic pool (2), and fillers are added in the anoxic pool (1) and the aerobic pool (2), and the biochemical pool process is characterized in that: a water outlet (11) for water and filler to flow from the anoxic tank (1) to the aerobic tank (2) is arranged between the anoxic tank (1) and the aerobic tank (2), and a backflow channel (22) for water and filler to flow back to the anoxic tank (1) is also arranged between the anoxic tank (1) and the aerobic tank (2);
the density of the filler put in the anoxic tank (1) is larger than that of water and is a large specific gravity filler, the density of the filler put in the aerobic tank (2) is smaller than that of water and is a small specific gravity filler, and the water passing port (11) is positioned at the upper end of the tank wall;
the opening of the reflux passage (22) in the aerobic tank (2) is positioned at the bottom end of the tank wall;
the water flows into the anoxic tank (1) from the water inlet (10), the large-specific-gravity filler is distributed in the anoxic tank (1), the large-specific-gravity filler in the anoxic tank (1) moves back and forth under the drive of the power device, most of the large-specific-gravity filler moves at the middle lower part, a small amount of the large-specific-gravity filler is close to the liquid level, part of the large-specific-gravity filler is taken away when water flows into the aerobic tank (2) from the water outlet (11), the small-specific-gravity filler is distributed in the aerobic tank (2), the height of the large-specific-gravity filler is lower than that of the small-specific-gravity filler, when the large-specific-gravity filler and the small-specific-gravity filler flow through the opening of the backflow channel (22) of the aerobic tank (2), the large-specific-gravity filler is conveyed back to the anoxic tank (1) along with the water flow, the height of the small-specific-gravity filler which enters the anoxic tank (1) is close to the liquid level, and returns to the aerobic tank (2) from the water outlet (11), and the water drainage quantity of the water outlet (12) is consistent with the water inflow of the water inlet (10).
2. The water treatment biochemical pond process according to claim 1, wherein: the bottom of the pool at the opening of the reflux channel (22) of the aerobic pool (2) is not provided with an aeration device.
3. The water treatment biochemical pond process according to claim 2, wherein: the back flow channel (22) is internally provided with a power device for driving water and filling materials to flow back to the anoxic tank (1).
4. The water treatment biochemical pond process according to claim 2, wherein: the biochemical water treatment tank is of a push-flow gallery type structure, a return opening (21) is arranged at the water outlet (12) of the aerobic filler tank, and the return opening (21) is communicated with the rear end of the aerobic filler tank and the front end of the aerobic filler tank.
5. The water treatment biochemical pond process according to claim 4, wherein: the feed back opening (21) is positioned at the upper end of the pool wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910164275.1A CN109987701B (en) | 2019-03-05 | 2019-03-05 | Water treatment biochemical tank and water treatment process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910164275.1A CN109987701B (en) | 2019-03-05 | 2019-03-05 | Water treatment biochemical tank and water treatment process |
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| CN109987701A CN109987701A (en) | 2019-07-09 |
| CN109987701B true CN109987701B (en) | 2023-10-27 |
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Families Citing this family (2)
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| CN114477615A (en) * | 2021-11-30 | 2022-05-13 | 中化学朗正环保科技有限公司 | Low-energy-consumption sewage treatment system |
| CN114436398A (en) * | 2022-01-25 | 2022-05-06 | 中国恩菲工程技术有限公司 | Material conveying device, sewage treatment equipment and sewage treatment method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109987701A (en) | 2019-07-09 |
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Effective date of registration: 20231205 Address after: 116000 room 1302, network industry building, 541 Huangpu Road, Ganjingzi District, Dalian City, Liaoning Province Patentee after: DALIAN YUDU ENVIRONMENT TECHNOLOGY MATERIAL CO.,LTD. Patentee after: DALIAN WEDO ENVIRONMENTAL PROCESS AND TECHNOLOGY CO.,LTD. Address before: Room 301, 3rd Floor, No. 35 Torch Road, Qixianling High tech Industrial Park, Shahekou District, Dalian City, Liaoning Province, 116000 Patentee before: DALIAN YUDU ENVIRONMENT TECHNOLOGY MATERIAL CO.,LTD. |