CN218969024U - Integrated fast sedimentation biochemical device - Google Patents
Integrated fast sedimentation biochemical device Download PDFInfo
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- CN218969024U CN218969024U CN202222980303.7U CN202222980303U CN218969024U CN 218969024 U CN218969024 U CN 218969024U CN 202222980303 U CN202222980303 U CN 202222980303U CN 218969024 U CN218969024 U CN 218969024U
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- sedimentation
- gas stripping
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- reaction tank
- biochemical reaction
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an integrated rapid sedimentation biochemical device, which comprises a biochemical reaction tank, wherein a reaction area and a rapid sedimentation area are formed in the biochemical reaction tank, an aerator is arranged at the lower end of the reaction area, an inclined bottom surface is formed at the lower end of the rapid sedimentation area, the height of the inclined bottom surface towards one side of the reaction area is lower than that of one side far away from the reaction area, the lower end of the reaction area is communicated with the lower end of the rapid sedimentation area, an upflow channel and a downflow channel which extend along the vertical direction are arranged in the rapid sedimentation area, the upper end of the upflow channel is communicated with the upper end of the downflow channel, and a pulse gas supply device is arranged at the lower end of the upflow channel of the biochemical reaction tank and can supply upward pulse gas to the upflow channel.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to an integrated rapid sedimentation biochemical device.
Background
At present, a plurality of integrated devices such as CN209522635U, CN205973952U which combine the precipitation function with the biochemical reaction zone are on the market, and compared with the traditional secondary sedimentation tank, the device which combines the precipitation function with the biochemical reaction zone can save a large amount of occupied space;
however, because the sludge has viscosity, sludge is easy to cause sludge accumulation by only carrying out sludge reflux under the action of gravity sedimentation, inorganic substances contained in the inlet water and alkalinity generated in the biochemical process are easy to form sludge hardening at a sludge reflux seam, so that the sludge is self-refluxed in the current mode, the sludge reflux flow is not ensured, and the phenomena of high sludge position, turbid water outlet, low MLSS in a reaction zone and the like are easy to occur; in addition, the structure has the defects of complex structure, high manufacturing cost and difficult construction.
Disclosure of Invention
In order to overcome the defects, the utility model provides an integrated rapid sedimentation biochemical device which can realize large instantaneous quantity of sludge backflow and prevent backflow blockage.
The utility model adopts the technical scheme for solving the technical problems: the utility model provides an integration deposits biochemical device soon, includes biochemical reaction tank, form reaction zone and quick sedimentation zone in the biochemical reaction tank, the reaction zone lower extreme is equipped with the aerator, and quick sedimentation zone lower extreme becomes to have the slope bottom surface, and this slope bottom surface is highly less than the height of keeping away from reaction zone one side towards reaction zone one side, reaction zone lower extreme and quick sedimentation zone lower extreme intercommunication are equipped with the upward flow passageway and the downward flow passageway that extend along vertical direction in the quick sedimentation zone, upward flow passageway upper end and downward flow passageway upper end intercommunication, biochemical reaction tank is located upward flow passageway lower extreme and is equipped with pulse air feeder, pulse air feeder can provide ascending pulse gas for upward flow passageway.
As a further improvement of the utility model, the pulse air supply device comprises a pulse aeration pipeline and an air collection chamber, wherein the air collection chamber is of a groove-shaped structure with a downward opening, the air collection chamber is communicated with the inlet at the lower end of the upflow channel, the pulse aeration pipeline is positioned right below the opening of the air collection chamber, and pulse air discharged from the pulse aeration pipeline can enter the upflow channel after being collected by the air collection chamber.
As a further improvement of the utility model, a gas stripping vertical plate and a gas stripping baffle are fixedly arranged in the biochemical reaction tank at parallel intervals, the gas stripping vertical plate divides the biochemical reaction tank into a reaction area and a rapid sedimentation area, the gas stripping baffle is positioned in the rapid sedimentation area, two side walls of the gas stripping vertical plate and the gas stripping baffle are respectively and fixedly connected with the side walls of the biochemical reaction Chi Liangxiang in a sealing way, the upper end of the gas stripping vertical plate is not lower than the upper end of the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping vertical plate and the bottom surface of the lower end of the biochemical reaction tank, the upper end of the gas stripping baffle is lower than the liquid level in the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping baffle and the inclined bottom surface of the rapid sedimentation area of the biochemical reaction tank, a flow lifting channel is formed between the gas stripping vertical plate and the gas stripping baffle, and a flow reducing channel is formed on one side of the gas stripping baffle far away from the gas stripping vertical plate.
As a further improvement of the utility model, at least one gas collecting inclined plate is fixedly arranged on the side wall of the gas stripping vertical plate, which is opposite to one side of the gas stripping partition plate, the gas collecting inclined plate and the gas stripping vertical plate jointly form a gas collecting chamber with a downward opening, the gas stripping vertical plate is provided with a through air hole on the side wall part serving as the gas collecting chamber, and the through air hole is used for communicating the gas collecting chamber with the upflow channel.
As a further improvement of the utility model, the height of the lower end of the stripping baffle is lower than that of the lower end of the stripping vertical plate.
As a further improvement of the utility model, the rapid sedimentation zone of the biochemical reaction tank is also fixedly provided with a sedimentation baffle plate, the sedimentation baffle plate and the gas stripping baffle plate are arranged in parallel at intervals, the sedimentation baffle plate is positioned on one side of the gas stripping baffle plate away from the gas stripping vertical plate, the height of the upper end of the sedimentation baffle plate is not lower than the height of the upper end of the liquid level of the biochemical reaction tank, a gap is reserved between the lower end of the partition baffle plate and the inclined bottom surface of the lower end of the rapid sedimentation zone of the biochemical reaction tank, a down-flow channel is formed between the gas stripping baffle plate and the sedimentation baffle plate, and a gravity sedimentation zone is formed between the sedimentation baffle plate and one side wall of the biochemical reaction tank away from the reaction zone.
As a further improvement of the utility model, the pulse aeration pipeline is provided with an air quantity control valve, and the air quantity control valve can adjust the pulse aeration quantity of the pulse aeration pipeline.
As a further improvement of the utility model, the biochemical reaction tanks are two or more than two which are sequentially arranged, and the water outlet of the rapid sedimentation zone of the former biochemical reaction tank is communicated with the water inlet of the reaction zone of the latter biochemical reaction tank along the water flow direction.
As a further improvement of the utility model, the side wall of the sedimentation zone water outlet of the former biochemical reaction tank in the two adjacent biochemical reaction tanks is shared with the side wall of the reaction zone water inlet of the latter biochemical reaction tank, and the upper end of the side wall is lower than the water level in the biochemical reaction tanks.
As a further improvement of the utility model, an external sedimentation tank which relies on gravity sedimentation is also arranged along the water flow direction and communicated with a sedimentation water outlet of the biochemical reaction tank at the tail end and a water inlet of the external sedimentation tank.
The beneficial effects of the utility model are as follows: according to the utility model, the reaction area and the rapid sedimentation area are divided in the biochemical reaction tank, the rapid sedimentation area is provided with the upward flow channel and the downward flow channel, the pulse aeration pipeline at the bottom of the tank and the air collection chamber form the pulse air supply device, upward power is provided for the upward flow channel, so that the mud-water mixture entering the rapid sedimentation area ascends along the upward flow channel and descends along the downward flow channel, further, a negative pressure suction effect is formed to quickly suck the sludge in the sludge hopper of the rapid sedimentation area communicated with the reaction area back to the reaction area, the reflux amount of the concentrated sludge in the reaction area is increased, and meanwhile, the inclined bottom surface at the bottom of the rapid sedimentation area is subjected to pulse water flow flushing by the water flow flowing out of the downward flow channel, so that the problem of unsmooth reflux caused by sludge hardening at the bottom of the rapid sedimentation area can be effectively prevented; in addition, the reflux mode does not need an external sludge pump, so that the investment and the running cost are greatly reduced.
Drawings
FIG. 1 is a front view of the structural principle of the present utility model;
FIG. 2 is a top plan view of the structural principles of the present utility model;
FIG. 3 is a schematic diagram of the flow direction of water according to the present utility model.
Detailed Description
Examples: the utility model provides an integration deposits biochemical device soon, includes biochemical reaction tank, form reaction zone and quick sedimentation zone in the biochemical reaction tank, the reaction zone lower extreme is equipped with aerator 5, and quick sedimentation zone lower extreme becomes to have slope bottom surface 11, and this slope bottom surface 11 highly is less than the height of keeping away from reaction zone one side towards reaction zone one side, reaction zone lower extreme and quick sedimentation zone lower extreme intercommunication are equipped with the lift channel 8 and the down-flow channel 9 that extend along vertical direction in the quick sedimentation zone, lift channel 8 upper end and down-flow channel 9 upper end intercommunication, biochemical reaction tank is located lift channel 8 lower extreme and is equipped with pulse air feeder, pulse air feeder can provide ascending pulse gas for lift channel 8.
After entering the reaction zone of the biochemical reaction tank through the water inlet pipeline 6, the wastewater is aerated in the biochemical reaction zone through the aerator 5, so that the wastewater carries out biological aerobic reaction in the reaction zone, then the sludge mixed liquor enters the rapid sedimentation zone, the sludge is sunk on the inclined bottom surface 11 which is removed by the rapid sedimentation zone, and is deposited at one end of the inclined bottom surface 11 of the rapid sedimentation tank in a sliding way along the direction of the inclined bottom surface 11 towards the reaction zone, a sludge bucket-shaped structure for containing precipitated sludge is formed at the position, meanwhile, the pulse gas provided by the pulse gas supply device flows upwards along the lifting channel 8 together, a large amount of sludge mixed liquor rises to a certain height through the lifting channel 8, and at the moment, a negative pressure suction effect is formed at the lower part of the instant lifting channel 8, so that the sludge deposited on the inclined bottom surface of the rapid sedimentation zone is absorbed by the sludge, thereby increasing the reflux quantity of the concentrated sludge, the sludge mixed liquor which rises to the reaction zone along the lifting channel 8 flows downwards along the falling channel 9, and forms a sludge bucket-shaped structure which can flow back to the bottom surface of the rapid sedimentation zone, and the sludge can flow back to the rapid sedimentation zone, and the flow back to the bottom of the rapid sedimentation zone is promoted, and the sludge can flow back to the inclined bottom surface is formed at the bottom of the rapid sedimentation zone, and the bottom of the rapid sedimentation zone is changed to the bottom of the rapid sedimentation zone, and the sludge is quickly flows back to the sedimentation zone; the inclined bottom surface 11 at the lower end of the rapid sedimentation zone can effectively prevent the problem of unsmooth backflow caused by sludge hardening due to pulse water flow scouring; in addition, the reflux mode does not need an external sludge pump, and the investment and the running cost are greatly reduced.
The pulse air supply device comprises a pulse aeration pipeline 15 and an air collection chamber 7, the air collection chamber 7 is of a groove-shaped structure with a downward opening, the air collection chamber 7 is communicated with the inlet of the lower end of the upflow channel 8, the pulse aeration pipeline 15 is positioned right below the opening of the air collection chamber 7, and pulse air discharged from the inside of the pulse aeration pipeline 15 can enter the upflow channel 8 after being collected by the air collection chamber 7. By arranging the pulse aeration pipeline 15 to be matched with the air collection chamber 7, pulse air flow discharged by the pulse aeration pipeline 15 enters the air collection chamber 7 to be collected, then the air collection chamber 7 exhausts air to the up-flow channel 8, an intermediate air collection space is formed by the air collection chamber 7, the air flow generated by an aeration pipe is prevented from entering the up-flow channel 8, the air is ensured to be sufficient and stable in entering the up-flow channel 8, the air collection chamber 7 is not limited to one or one layer, a plurality of partition plates can be used for separating the air collection chamber 7, and the air collection chamber can be divided into a plurality of layers up and down to form common air collection of the air collection chambers 7.
The biochemical reaction tank is internally and parallelly provided with a gas stripping vertical plate 13 and a gas stripping baffle plate 14 at intervals, the gas stripping vertical plate 13 divides the biochemical reaction tank into a reaction area and a rapid sedimentation area, the gas stripping baffle plate 14 is positioned in the rapid sedimentation area, two side walls of the gas stripping vertical plate 13 and the gas stripping baffle plate 14 are respectively and fixedly connected with side walls of a biochemical reaction Chi Liangxiang in a sealing way, the upper end of the gas stripping vertical plate 13 is not lower than the upper end of the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping vertical plate 13 and the bottom surface of the lower end of the biochemical reaction tank, the upper end of the gas stripping baffle plate 14 is lower than the liquid level in the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping baffle plate 14 and the inclined bottom surface 11 of the rapid sedimentation area of the biochemical reaction tank, an upflow channel 8 is formed between the gas stripping vertical plate 13 and the gas stripping baffle plate 14, and a downflow channel 9 is formed when the gas stripping baffle plate 14 is far away from one side of the gas stripping vertical plate. The biochemical reaction tank is divided into the reaction zone and the rapid sedimentation zone through the air stripping vertical plate 13, so that the disturbance of the water flow flowing in the rapid sedimentation zone to the sludge in the reaction zone can be avoided, meanwhile, the condition that the sludge water in the reaction zone does not fully react and enters the rapid sedimentation zone is avoided, the structure can form the upflow channel 8 and the downflow channel 9 only by adding a plurality of partition boards, the reaction tank is divided into the reaction zone and the rapid sedimentation zone, the sludge concentration in the reaction zone can be effectively increased, the good sludge-water separation effect is achieved, and the device has the advantages of simple structure, simplicity in construction and low manufacturing cost.
The side wall of the gas stripping vertical plate 13, which is opposite to one side of the gas stripping partition plate 14, is fixedly provided with at least one gas collecting inclined plate 12, the gas collecting inclined plate 12 and the gas stripping vertical plate 13 jointly form a gas collecting chamber 7 with a downward opening, the gas stripping vertical plate 13 is provided with penetrating air holes as a side wall part of the gas collecting chamber 7, and the penetrating air holes are used for communicating the gas collecting chamber 7 with the upflow channel 8. Through air lift riser 13 and gas collection swash plate 12 cooperation formation air chamber 7, air chamber 7 forms the horn mouth structure that upper end size is less than the opening size, makes things convenient for pulse aeration pipeline 15 exhaust pulse gas to get into fast, enables simultaneously again that the interior gas of air chamber 7 gets into upflow channel 8 fast, avoids gas to stop all the time in air chamber 7 to influence the aeration impulse.
The lower end of the stripping baffle 14 is lower than the lower end of the stripping vertical plate 13. The part of the lower end of the gas stripping baffle 14 lower than the gas stripping vertical plate 13 can play a role in blocking pulse gas and ascending water flow, the part is placed into the down-flow channel 9 to influence the water flow lifting flow, meanwhile, mud water flowing out of the down-flow channel 9 is prevented from entering the up-flow channel 8 again, and the mud water of the down-flow channel 9 is ensured to flow towards the reaction zone rapidly.
The rapid sedimentation zone of the biochemical reaction tank is also fixedly provided with a sedimentation baffle 16, the sedimentation baffle 16 and the gas stripping baffle 14 are arranged at intervals in parallel, the sedimentation baffle 16 is positioned on one side of the gas stripping baffle 14 away from the gas stripping vertical plate 13, the height of the upper end of the sedimentation baffle 16 is not lower than that of the upper end of the liquid level of the biochemical reaction tank, a gap exists between the lower end of the separation baffle and the inclined bottom surface 11 of the lower end of the rapid sedimentation zone of the biochemical reaction tank, a down-flow channel 9 is formed between the gas stripping baffle 14 and the sedimentation baffle 16, and a gravity sedimentation zone 10 is formed between the sedimentation baffle 16 and one side wall of the biochemical reaction tank away from the reaction zone. The rapid sedimentation zone is divided into a flowing sludge reflux zone and a static gravity sedimentation zone 10 through the sedimentation baffle 16, so that the rapid reflux of the sludge in the rapid sedimentation zone to the reaction zone is ensured, the water outlet effect is not influenced, and the low sludge content in the discharged water after the sludge is fully sedimentated is ensured.
The pulse aeration pipeline 15 is provided with an air quantity control valve, and the air quantity control valve can adjust the pulse aeration quantity of the pulse aeration pipeline 15. The pulse aeration pipeline 15 right below the gas collection chamber 7 is connected with a gas flow control valve so as to meet the function of controlling the gas stripping flow by adjusting the gas flow for different water qualities and sludge with different properties of different incoming water by a person skilled in the art.
The biochemical reaction tanks are two or more than two which are sequentially arranged, and the water outlet of the rapid sedimentation zone of the former biochemical reaction tank is communicated with the water inlet of the reaction zone of the latter biochemical reaction tank along the water flow direction. The reactor is connected through two biochemical reaction tanks to form a two-stage reaction and precipitation structure, sewage flows through a first-stage reaction zone 1, a first-stage rapid precipitation zone 2, a second-stage reaction zone 3 and a second-stage rapid precipitation zone 4 in the reactor, the sewage enters the first-stage reaction zone through a water inlet pipe, biological aerobic reaction is carried out in the first-stage reaction zone through aeration, and then mud-water mixed liquor enters the first-stage rapid precipitation zone, and as the first-stage rapid precipitation zone has shorter precipitation time, activated sludge just enters a compression precipitation stage, and flows back to the reaction zone rapidly through micro-power provided by pulse type gas stripping reflux liquid, so that the mud-water separation effect is ensured, and meanwhile, the volume of a mud-water separation unit is reduced; similarly, after the mud-water mixed solution passes through the secondary reaction zone to carry out aerobic reaction, as the secondary rapid sedimentation zone has shorter sedimentation time, the activated sludge just enters a compression sedimentation stage and rapidly flows back to the secondary reaction zone due to micro-power provided by the pulse type gas stripping reflux liquid, so that the volume of the mud-water separation unit is reduced while the mud-water separation effect is ensured. In conclusion, compared with the traditional integrated sewage treatment equipment, the multistage rapid sedimentation biochemical device can effectively improve the sedimentation sludge reflux efficiency and increase the reactor sludge concentration.
The side wall of the sedimentation zone water outlet 17 of the previous biochemical reaction tank in the two adjacent biochemical reaction tanks is shared with the side wall of the reaction zone water inlet of the next biochemical reaction tank, and the upper end of the side wall is lower than the water level in the biochemical reaction tanks. Thus, the two biochemical reaction tanks form an integrated structure, the whole volume is small, and the occupied area is saved.
The device is also provided with an external sedimentation tank which relies on gravity sedimentation, a sedimentation zone water outlet 17 of the biochemical reaction tank at the tail end is communicated with a water inlet of the external sedimentation tank along the water flow direction, and the external sedimentation tank is arranged again, so that the sludge in the discharged water is fully gravity-settled, and the cleanliness of the discharged water is ensured.
Claims (10)
1. The utility model provides an integration deposits biochemical device soon, includes biochemical reaction pond, its characterized in that: the biochemical reaction tank is characterized in that a reaction zone and a rapid sedimentation zone are formed in the biochemical reaction tank, an aerator (5) is arranged at the lower end of the reaction zone, an inclined bottom surface (11) is formed at the lower end of the rapid sedimentation zone, the inclined bottom surface is lower than the height far away from one side of the reaction zone towards one side of the reaction zone, the lower end of the reaction zone is communicated with the lower end of the rapid sedimentation zone, an upflow channel (8) and a downflow channel (9) extending along the vertical direction are arranged in the rapid sedimentation zone, the upper end of the upflow channel is communicated with the upper end of the downflow channel, a pulse gas supply device is arranged at the lower end of the upflow channel, and the pulse gas supply device can provide upward pulse gas for the upflow channel.
2. The integrated rapid precipitation biochemical device according to claim 1, wherein: the pulse air supply device comprises a pulse aeration pipeline (15) and an air collecting chamber (7), wherein the air collecting chamber is of a groove-shaped structure with a downward opening, the air collecting chamber is communicated with the inlet at the lower end of the upflow channel, the pulse aeration pipeline is positioned right below the opening of the air collecting chamber, and pulse air discharged from the pulse aeration pipeline can enter the upflow channel after being collected by the air collecting chamber.
3. The integrated rapid precipitation biochemical device according to claim 2, wherein: the biochemical reaction tank is characterized in that a gas stripping vertical plate (13) and a gas stripping partition plate (14) are fixedly arranged in the biochemical reaction tank at parallel intervals, the gas stripping vertical plate divides the biochemical reaction tank into a reaction area and a rapid sedimentation area, the gas stripping partition plate is positioned in the rapid sedimentation area, two side walls of the gas stripping vertical plate and the gas stripping partition plate are respectively and fixedly connected with the side walls of the biochemical reaction Chi Liangxiang in a sealing way, the upper end of the gas stripping vertical plate is not lower than the upper end of the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping vertical plate and the bottom surface of the lower end of the biochemical reaction tank, the upper end of the gas stripping partition plate is lower than the liquid level in the biochemical reaction tank, a gap is reserved between the lower end of the gas stripping partition plate and the inclined bottom surface of the rapid sedimentation area of the biochemical reaction tank, a lifting flow channel is formed between the gas stripping vertical plate and the gas stripping partition plate, and a down flow channel is formed when the gas stripping partition plate is far away from one side of the lifting vertical plate.
4. The integrated rapid precipitation biochemical device according to claim 3, wherein: the side wall of the gas stripping vertical plate, which is opposite to one side of the gas stripping partition plate, is fixedly provided with at least one gas collecting inclined plate (12), the gas collecting inclined plate and the gas stripping vertical plate jointly form a gas collecting chamber with a downward opening, the gas stripping vertical plate is used as a gas collecting chamber side wall part to be provided with penetrating air holes, and the penetrating air holes are used for communicating the gas collecting chamber with the upflow channel.
5. The integrated rapid precipitation biochemical device according to claim 3 or 4, wherein: the lower end of the gas stripping baffle is lower than the lower end of the gas stripping vertical plate.
6. The integrated rapid precipitation biochemical device according to claim 3 or 4, wherein: the rapid sedimentation zone of the biochemical reaction tank is also fixedly provided with a sedimentation baffle (16), the sedimentation baffle and the gas stripping baffle are arranged at parallel intervals, the sedimentation baffle is positioned on one side of the gas stripping baffle away from the gas stripping vertical plate, the height of the upper end of the sedimentation baffle is not lower than that of the upper end of the liquid level of the biochemical reaction tank, a gap is reserved between the lower end of the separation baffle and the inclined bottom surface of the lower end of the rapid sedimentation zone of the biochemical reaction tank, a down-flow channel is formed between the gas stripping baffle and the sedimentation baffle, and a gravity sedimentation zone (10) is formed between the sedimentation baffle and the side wall of the biochemical reaction tank away from the reaction zone.
7. The integrated rapid precipitation biochemical device according to claim 2, wherein: the pulse aeration pipeline is provided with an air quantity control valve, and the air quantity control valve can adjust the pulse aeration quantity of the pulse aeration pipeline.
8. The integrated rapid precipitation biochemical device according to claim 1, wherein: the biochemical reaction tanks are two or more than two which are sequentially arranged, and the water outlet of the rapid sedimentation zone of the former biochemical reaction tank is communicated with the water inlet of the reaction zone of the latter biochemical reaction tank along the water flow direction.
9. The integrated rapid precipitation biochemical device according to claim 7, wherein: the side wall of the sedimentation zone water outlet of the former biochemical reaction tank and the side wall of the reaction zone water inlet of the latter biochemical reaction tank are shared, and the upper end of the side wall is lower than the water surface in the biochemical reaction tank.
10. The integrated rapid precipitation biochemical device according to claim 8, wherein: an external sedimentation tank which is settled by gravity is also arranged along the water flow direction and is communicated with a sedimentation water outlet (17) of the biochemical reaction tank at the tail end and a water inlet of the external sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222980303.7U CN218969024U (en) | 2022-11-09 | 2022-11-09 | Integrated fast sedimentation biochemical device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222980303.7U CN218969024U (en) | 2022-11-09 | 2022-11-09 | Integrated fast sedimentation biochemical device |
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| Publication Number | Publication Date |
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| CN218969024U true CN218969024U (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222980303.7U Active CN218969024U (en) | 2022-11-09 | 2022-11-09 | Integrated fast sedimentation biochemical device |
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| CN (1) | CN218969024U (en) |
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