CN212151764U - Pneumatic biological rotating disc and sewage treatment device adopting same - Google Patents
Pneumatic biological rotating disc and sewage treatment device adopting same Download PDFInfo
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- CN212151764U CN212151764U CN202020388088.XU CN202020388088U CN212151764U CN 212151764 U CN212151764 U CN 212151764U CN 202020388088 U CN202020388088 U CN 202020388088U CN 212151764 U CN212151764 U CN 212151764U
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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
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- 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 relates to a pneumatic biological rotating disc and adopt sewage treatment plant of this carousel, including transmission shaft and commentaries on classics disc, cavity sets up in the transmission shaft, the axial interval is provided with cavity rib pole on the transmission shaft, cavity rib pole and the inside intercommunication of transmission shaft, the venthole has been seted up on just being located its same lateral wall of direction of rotation on the cavity rib pole, the air-out is with the inside intercommunication of cavity rib pole, the one end of transmission shaft is connected with the air feed unit, the air feed unit: conveying gas into the transmission shaft; the air supply unit supplies air, the air flow is finally sprayed out through the air outlet holes in the hollow ribs, and the gas at all the air outlet holes is sprayed to generate reaction force on the whole biological rotating disk, so that the aim of stably driving the biological rotating disk to rotate is fulfilled, and the stable operation of the biological sewage treatment system is fulfilled.
Description
Technical Field
The utility model relates to a sewage treatment plant's technical field especially relates to a pneumatic biological rotating disc and adopt sewage treatment plant of this carousel.
Background
The biological rotating disc sewage treating technology belongs to one of the biological membrane method sewage treating technology, and the biological membrane mainly depends on microbial community attached to the surface of solid medium for growth and propagation to absorb organic pollutant in sewage as nutrition so as to purify sewage. The conventional biological rotating disc sewage treatment device belongs to a wall-wetting type rotary treatment system device, and is mainly characterized in that a plurality of groups of discs of a rotating disc component are immersed into sewage in a rotating mode, and a carrier for microorganism adhesion growth is provided by the plurality of groups of discs, so that a biological film with rich relevant biological phases is formed, and organic pollutants in the sewage are degraded.
Chinese patent No. CN103183408B discloses a pneumatic biological rotating disk sewage treatment device, which utilizes a perforated pipe installed at the bottom of an oxidation tank, and a plurality of microporous aerators are installed on the perforated pipe, and in addition, a gas collecting hood is installed on the outer edge of the disk of the rotating disk, and the gas generated by the aeration of the microporous aerator on the perforated pipe pushes the gas collecting hood, thereby generating a driving force for pushing the disk to rotate.
The above prior art solutions have the following drawbacks:
the gas that produces during actual aeration is irregular in the water and distributes, and the bubble is more few and few on really can acting on the gas collecting channel, and when the carousel rotated, the gas collecting channel inclined along with the disc rotation, the bubble impact was on the inclined plane of gas collecting channel this moment, can't collect the effort that enough promoted the gas collecting channel. Therefore, the pneumatic biological rotating disk cannot realize real pneumatic driving in real working conditions.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a pneumatic rotating biological disk, supply gas through the air feed unit, the air current is last through the venthole blowout on the cavity rib, and the gaseous injection of all ventholes has produced reaction force to whole rotating biological disk, and then realizes stably driving rotating biological disk pivoted purpose.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a pneumatic biological rotating disc, includes transmission shaft and carousel piece, the cavity sets up in the transmission shaft, the epaxial axial interval is provided with cavity rib pole on the transmission shaft, the inside intercommunication of cavity rib pole and transmission shaft, the venthole has been seted up on the same lateral wall that just is located its rotation direction on the cavity rib pole, venthole and the inside intercommunication of cavity rib pole, the one end of transmission shaft is connected with the air feed unit, the air feed unit: and delivering gas into the drive shaft.
Through adopting above-mentioned technical scheme, the transmission shaft is continuously input to air feed unit external air to along the last venthole input cavity rib of transmission shaft, the air current is discharged from the venthole of cavity rib pole one side again, and at gaseous reverse acting force, the transmission shaft drives the carousel piece and continues the rotation around the axial, realizes whole biological rotating disc's steady operation, the steady operation of sewage biological treatment system promptly.
The present invention may be further configured in a preferred embodiment as: the rotary disk is divided into a natural reoxygenation rotary disk and an aeration rotary disk, the hollow rib rods are circumferentially fixed on the axial end face of the aeration rotary disk at intervals, and the interior of the aeration rotary disk is hollow and communicated with the interior of the transmission shaft.
Through adopting above-mentioned technical scheme, there is great connecting portion between empty rib pole and the aeration carousel piece, reduces the shearing force between hollow rib pole and the transmission shaft, promotes the stability of being connected between hollow rib pole and the transmission shaft, has increased the intensity of aeration carousel piece simultaneously.
The present invention may be further configured in a preferred embodiment as: and a water absorbing layer is arranged on the axial end face of the rotating disc.
By adopting the technical scheme, in the whole sewage treatment process, the water absorption layer laid on the rotary disc piece absorbs liquid quickly and distributes the liquid to the whole space quickly, so that the impact on a biochemical water purification system caused by the change of water quantity and water quality is reduced, or the water is reversely supplemented through the water release effect of the water absorption layer. When the system does not feed water any more, the system still operates effectively because the rotary drum in the filtering water outlet area can still absorb and transfer sewage until the water level in the tank body is reduced to the control depth. The process makes the pool body have larger water storage space, and fundamentally increases the regulation capacity of water quantity and water quality.
The present invention may be further configured in a preferred embodiment as: the water-absorbing layer has a thickness no greater than 1/2 a of the thickness of the disc.
By adopting the technical scheme, if the water absorbing material is too thick and the water absorbing capacity is saturated, a larger load is caused to the rotation of the biological rotating disc, and in addition, the larger the thickness of the water absorbing material is, the larger the self weight of the water absorbing material after the water absorbing material is saturated is, so that the water absorbing material is easy to fall off from the disc surface, the higher requirement is brought to the bonding technology of the water absorbing material and the disc surface, and the water absorbing material after falling off is easy to wind in the rotation of the rotating disc, so that the system operation is seriously influenced; meanwhile, the larger the thickness of the water absorption material is, the larger the occupied space of the whole turntable sewage treatment system is, so that the manufacturing cost is increased, and the purposes of improving the operation stability of the biological turntable and reducing the cost are realized.
The present invention may be further configured in a preferred embodiment as: the thickness of the rotary disc is set to be 10mm, and the distance between every two adjacent rotary disc pieces is 10mm-20 mm.
By adopting the technical scheme, the smooth flowing of the water body is ensured, and the adjacent rotating disks cannot be interfered.
The present invention may be further configured in a preferred embodiment as: the rotary drum type transmission shaft is characterized by further comprising a rotary drum arranged at one end of the transmission shaft, wherein a sealing isolation sheet is arranged in the transmission shaft and is positioned between the rotary drum and a rotary disc sheet adjacent to the rotary drum.
By adopting the technical scheme, the air is blocked by the sealing separation sheet between the rotary drum and the rotary disc sheet, and the air is prevented from being directly discharged from the central water outlet pipe of the rotary drum. The last rotary disk adjacent to the rotary drum is connected with the section of the rotary drum through a hollow pipeline, and air enters the space of the rotary drum through the last rotary disk and the hollow connecting pipeline after being blocked. The hollow transmission shaft in the center of the rotary drum is perforated or grooved, and the surface of the hollow transmission shaft is covered with a microporous permeable layer. After the rotary drum rotates, purified water passes through the rotary drum, enters the inner cavity, passes through the permeable layer and is discharged from the hollow transmission shaft. When air passes through the turntable sheet and enters the rotary drum, the air pressure in the cavity of the rotary drum is reduced due to pressure loss, and the resistance and the water sealing effect of the water permeable layer of the central shaft of the rotary drum are added, so that the air is prevented from flowing out of the central shaft in a short time, and the air is ensured to penetrate out of the surfaces of the turntable and the rotary drum.
The present invention may be further configured in a preferred embodiment as: the transmission shaft is rotatably connected to one rotating end and is provided with a water absorbing ring.
Through adopting above-mentioned technical scheme, the water after biological purification pierces through the ring that absorbs water on the rotary drum, and impurity is further got rid of by the material filtration that absorbs water in the water, promotes the treatment effect of sewage.
The present invention may be further configured in a preferred embodiment as: and a disinfection device is arranged in the hollow inner cavity of the rotary drum.
Through adopting above-mentioned technical scheme, when the water is got rid of, further kill microorganism and bacterium etc. in the water through degassing unit, further promote the quality of water of getting rid of.
The present invention may be further configured in a preferred embodiment as: the pneumatic biological rotating disc comprises a transmission shaft, a filter, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the transmission shaft is horizontally and rotatably arranged in a sewage treatment tank; when sewage is added into the sewage treatment tank, the sewage sequentially passes through the natural reoxygenation area, the intensified aeration area and the filtered water area.
Through adopting above-mentioned technical scheme, in different sections, the position above the liquid surface, below the liquid surface, the inside and the outside on layer that absorb water, take place different biochemical reactions, make pollutants such as organic matter, nitrogen, phosphorus effectively get rid of, the biomembrane that drops and other particle impurity pass through the filter drainage section, and the clear emission of play water.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the aeration device is sequentially divided into a natural reoxygenation area, a strengthening aeration area and a filtered water area along the water flow direction. Different biochemical reactions occur in different sections, on the upper part of the liquid surface, under the liquid surface, and inside and outside the water absorption layer, so that pollutants such as organic matters, nitrogen, phosphorus and the like are effectively removed, a dropped biomembrane and other particle impurities pass through a filtering water-discharging section, and discharged water is clarified and discharged;
2. filamentous bacteria are not easy to expand through the continuous switching of anaerobic, anoxic and aerobic environments and the mechanism of a biomembrane method. Even if filamentous bacteria exist, the filamentous bacteria can be intercepted and removed in a precipitation water outlet area, and the water outlet effect cannot be influenced;
3. by enhancing aeration and oxygenation, the anaerobic digestion environment is improved, and the odor is greatly reduced compared with that of the conventional biological rotating disk;
4. the device does not need a front-mounted pretreatment adjusting tank or a rear-mounted precipitation/filtration unit, is highly integrated, occupies small area, has high space utilization rate and low equipment and land investment cost.
Drawings
FIG. 1 is a schematic structural diagram of a pneumatic biological rotating disk;
FIG. 2 is a schematic diagram of a rotary disk and an air outlet structure.
In the figure, 1, a transmission shaft; 2. rotating the disc; 21. naturally reoxygenating the rotating disc; 22. an aeration rotating disk; 3. an air supply unit; 4. a hollow rib bar; 41. an air outlet; 6. a drum; 7. a water absorbing ring; 8. a pipeline; 10, a sewage treatment tank; 11. and sealing the spacer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, a pneumatic biological rotating disk comprises a transmission shaft 1 and rotating disk sheets 2, the transmission shaft 1 is hollow, a plurality of rotating disk sheets 2 are coaxially fixed on the transmission shaft 1, an air supply unit 3 and a rotating drum 6 are respectively installed at two ends of the transmission shaft 1, the air supply unit 3 and the rotating drum 6 can support the transmission shaft 1 to rotate around the axis thereof, the air supply unit 3 is also used for supplying air into the hollow transmission shaft 1, a plurality of hollow rib rods 4 are axially fixed on the transmission shaft 1 at intervals, the hollow rib rods 4 are communicated with the inside of the transmission shaft 1, and air outlet holes 41 are formed in the same side of the hollow rib rods 4 rotating around the transmission shaft 1, and the air outlet holes 41 are distributed along the length direction of the hollow rib rods 4;
after the air supply unit 3 is started to supply air into the transmission shaft 1, the air flow is finally sprayed out through the air outlet holes 41 on the hollow ribs, and the gas spraying at all the air outlet holes 41 generates reaction force on the whole biological rotating disk, so that the aim of stably driving the biological rotating disk to rotate is fulfilled.
The rotary disk sheet 2 is divided into a natural reoxygenation rotary disk sheet 21 and an aeration rotary disk sheet 22, the natural reoxygenation rotary disk sheet 21 is positioned at one side close to the air supply unit 3, the aeration rotary disk sheet 22 is positioned at one side close to the rotary drum 6, the hollow rib rods 4 are fixed at one axial end face or two axial end faces of the aeration rotary disk sheet 22, the interior of the aeration rotary disk sheet 22 is hollow and communicated with the interior of the transmission shaft 1 and the interior of the hollow rib rods 4, namely, air flow sequentially passes through the transmission shaft 1, the aeration rotary disk sheet 22 and the hollow rib rods 4, large connecting parts exist between the hollow rib rods 4 and the aeration rotary disk sheet 22, the shearing force between the hollow rib rods 4 and the transmission shaft 1 is reduced, the connection stability between the hollow rib rods 4 and the transmission shaft 1 is improved, and the.
The rotary disc sheet 2 is uniformly laid with a water absorption layer which adopts porous water absorption materials, and the water absorption materials can absorb and store sewage on the disc surface. The total width of the rotary disk sheet 2 and the hollow rib rods 4 is 10mm, the thickness of the porous water absorbing material is 5mm (the thickness of the porous water absorbing material is not more than 1/2 of the thickness of the rotary disk sheet 2), and in order to ensure that a water body smoothly flows and the adjacent rotary disk sheets 2 cannot be interfered with each other, the distance between the adjacent rotary disk sheets 2 is 10-20 mm. If the water absorption material is too thick and the water absorption capacity is saturated, a larger load is caused to the rotation of the biological rotating disc, and in addition, the larger the thickness of the water absorption material is, the larger the self weight of the water absorption material after the water absorption saturation is, the more the water absorption material is easy to fall off or tear from the rotating disc piece 2, so that the water absorption material not only has higher requirements on the structure strength of the water absorption piece and the bonding technology of the water absorption piece and the rotating disc piece 2, but also the water absorption layer after falling off is easy to be wound in the rotation of the biological rotating disc, and the system operation; meanwhile, the larger the thickness of the water absorption sheet is, the larger the occupied space of the whole biological rotating disc sewage treatment system is, and the manufacturing cost is increased.
The rotary drum 6 is connected with the adjacent rotary disc pieces 2 through a pipeline 8, air is led into an inner cavity of the rotary drum 6 from a rotary disc area, a water absorption ring 7 is arranged between the transmission shaft 1 and the rotary drum 6, the water absorption ring 7 is made of a microporous water absorption material, the water absorption ring 7 is wrapped on the periphery of the transmission shaft 1, meanwhile, a sealing isolation sheet 11 is arranged in the inner cavity of the transmission shaft 1 and divides the transmission shaft 1 into an inflation cavity and a drainage cavity, and the sealing isolation sheet 11 is arranged between the rotary drum 6 and the adjacent rotary disc pieces 2;
the water body after biological purification penetrates through the water absorption ring 7 on the rotary drum 6, impurities in the water body are further filtered and removed by the water absorption material, and the water absorption material is subjected to real-time gas backflushing from inside to outside by the airflow guided in by the adjacent rotary disc sheets 2 of the rotary drum 6 through the pipeline 8, so that the filtered and intercepted impurities are blown off, and the rotary drum 6 is driven to rotate. The purified and evolved water naturally flows out through the connecting part of the rotary drum 6 and the transmission shaft 1. The filtering function of the filtering water outlet area can clarify the outlet water, the outlet water quality is better than that of the common sedimentation method, and the air penetrates through the filtering layer from inside to outside, so that the filtering layer is backwashed in real time.
The hollow cavity of the rotary drum 6 can also be provided with a disinfection device. The disinfection device can be realized in several forms, alone or in combination: firstly, an annular chlorine spindle device is additionally arranged between a drum surface of a hollow inner cavity of a rotary drum 6 and a hollow bearing, the annular chlorine spindle device is sleeved on the surface of a permeable layer of the hollow bearing, the diameter of an inner ring of the chlorine spindle device is the same as that of the permeable layer, the diameter of an outer ring of the chlorine spindle device exceeds the inner diameter by 20-30cm, and the chlorine spindle device extends for 30-50cm from one side end surface of the rotary drum 6 to the other side end surface. The chlorine ingot device is filled with solid chlorine ingot slices, and water flows through the chlorine ingot slices to contact with the chlorine ingot slices for disinfection. The outer side surface of the chlorine ingot device is provided with an openable sealing opening, and after the chlorine ingot pieces are consumed, the chlorine ingot pieces are added through the sealing opening; secondly, introducing a liquid disinfectant through a hollow bearing, injecting a certain amount of medicament into the hollow bearing through an external dosing device according to the effluent water quality monitoring result, and injecting the medicament into the inner cavity of the hollow rotary drum 6 to disinfect the water body; thirdly, an ultraviolet disinfection lamp tube is arranged in the inner cavity of the hollow rotary drum 6, and the ultraviolet disinfection device is used for disinfection.
The implementation principle of the embodiment is as follows:
the air supply unit 3 continuously inputs the outside air into the transmission shaft 1 through the air pipe, inputs the outside air into the inner cavity of the rotating disc sheet 2 in the intensified aeration area along the air outlet 41 on the transmission shaft 1, and discharges the outside air from the air outlet 41 on one side of the hollow rib on the surface of the aeration rotating disc sheet, and the rotating disc sheet 2 continuously rotates along the axial direction under the reverse acting force of the air.
Example two:
as shown in fig. 1, a sewage treatment device comprises a sewage treatment tank 10 and a pneumatic biological rotating disk as in the first embodiment, wherein a transmission shaft 1 of the pneumatic biological rotating disk is horizontally arranged in the sewage outlet treatment tank, the whole sewage treatment tank 10 is divided into a natural reoxygenation area, an intensified aeration area and a filtered effluent area along the sewage flowing-in and flowing-out direction in the sewage treatment tank 10, and a natural reoxygenation rotating disk 21 is arranged near the sewage inlet, and a rotating disk 6 is arranged near the sewage outlet.
The air supply unit 3 continuously inputs the outside air into the transmission shaft 1 through the air pipe, inputs the outside air into the inner cavity of the rotary disk sheet 2 in the intensified aeration area along the air outlet 41 or the air outlet groove on the transmission shaft 1, and discharges the outside air from the through hole on one side of the hollow rib on the surface of the aeration rotary disk sheet, and the rotary disk sheet 2 continuously rotates along the axial direction under the reverse acting force of the air.
Sewage flows through the natural reoxygenation area from the water inlet, the water absorbing layer on the natural reoxygenation rotary disk 21 absorbs and uniformly diffuses the sewage to the whole water absorbing layer covered on the disk surface, the sewage automatically flows into the whole natural reoxygenation area along with the rotation of the natural reoxygenation rotary disk 21 and is absorbed and rotated by the water absorbing layer on the natural reoxygenation rotary disk 21, precipitation, aerobic reaction, hydrolytic acidification and the like are carried out in the natural reoxygenation area, organic matters are partially degraded, ammoniation reaction is carried out, and the B/C ratio is improved.
In the intensified aeration area, the air input by the air supply unit 3 flows into the inner cavity of the aeration rotary disc plate 22 along the inner cavity of the transmission shaft 1 and is discharged from the air outlet 41 at one side of the hollow rib rod 4, so that oxygen is provided for biodegradation of sewage absorbed by the water absorption layer on the disc surface of the aeration rotary disc plate 22, an aged biomembrane on the disc surface of the aeration rotary disc plate 22 can be stripped at an accelerated speed through air flow, and anaerobic, aerobic and anoxic reactions also continuously occur in the rotation process of the aeration rotary disc plate 22 on the liquid surface and under the liquid surface, so that the sewage treatment efficiency and capacity are improved.
The water body after the biological evolution in the filtering water outlet area penetrates through the water absorbing material on the rotary drum 6, impurities in the water body are further filtered and removed by the water absorbing material, the water absorbing material is subjected to real-time gas backflushing from inside to outside by the airflow guided in by the adjacent aeration rotary disc pieces 22 of the rotary drum 6 through the pipeline 8, the filtered and intercepted impurities are blown off, and meanwhile, the rotary drum 6 is driven to rotate. The purified water naturally flows out through the connecting part of the rotary drum 6 and the transmission shaft 1. The filtering function of the filtering water outlet area can clarify the outlet water, the outlet water quality is better than that of the common sedimentation method, and the air penetrates through the filtering layer from inside to outside, so that the filtering layer is backwashed in real time.
In the whole sewage treatment process, the water absorption layer laid on the rotary disc piece 2 absorbs liquid quickly and distributes the liquid to the whole space quickly, so that the impact on a biochemical water purification system caused by the change of water quantity and water quality is reduced, or the water is reversely supplemented through the water release effect of the water absorption layer. When the system is no longer in water, the system still operates effectively because the rotary drum 6 in the water filtering area can still absorb and transfer sewage until the water level in the tank body is reduced to the control depth. The process makes the pool body have larger water storage space, and fundamentally increases the regulation capacity of water quantity and water quality.
When the water inflow of the system is large, the water absorption capacity of the self-adjusting water absorption materials such as the outer-coating sponge and the like is large, the weight is large, the liquid level is high, the rotation resistance is large, under the condition of the same air flow, the rotation speed is reduced, two sets of air supply units 3 can be configured aiming at the maximum water flow and the average water flow, one set of air supply units 3 is operated at ordinary times, and when the rotation speed is lower than a certain speed, the two sets of air supply units 3 are automatically started, so. In addition, when sewage flows to the tail end along the axial direction, the sewage is filtered and flows out through a compartment formed between the last two rotating disc pieces 2, and aeration and rotation enable the system to automatically carry out real-time backwashing on the filtering layer of the outer water absorbing ring 7.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. A pneumatic biological rotating disk comprises a transmission shaft (1) and a rotating disk sheet (2), and is characterized in that: the cavity sets up in transmission shaft (1), axial interval is provided with cavity rib pole (4) on transmission shaft (1), cavity rib pole (4) and transmission shaft (1) inside intercommunication, venthole (41) have been seted up on cavity rib pole (4) and the same lateral wall that is located its rotation direction, venthole (41) and cavity rib pole (4) inside intercommunication, the one end of transmission shaft (1) is connected with air feed unit (3), air feed unit (3): gas is delivered into the transmission shaft (1).
2. The pneumatic bio-disc of claim 1, wherein: the rotary disk (2) is divided into a natural reoxygenation rotary disk (21) and an aeration rotary disk (22), the hollow rib rods (4) are circumferentially fixed on the axial end face of the aeration rotary disk (22) at intervals, and the interior of the aeration rotary disk (22) is hollow and communicated with the interior of the transmission shaft (1).
3. The pneumatic bio-disc of claim 1, wherein: and a water absorbing layer (5) is arranged on the axial end face of the rotating disc (2).
4. A pneumatic bio-disc according to claim 3, wherein: the thickness of the water absorbing layer (5) is not more than 1/2 of the thickness of the disc.
5. A pneumatic bio-disc according to claim 3, wherein: the thickness of the rotary disc is set to be 10mm, and the distance between every two adjacent rotary disc sheets (2) is 10mm-20 mm.
6. The pneumatic bio-disc of claim 1, wherein: the transmission shaft is characterized by further comprising a rotary drum (6) arranged at one end of the transmission shaft (1), wherein a sealing isolation sheet (11) is arranged in the transmission shaft (1), and the sealing isolation sheet (11) is located between the rotary drum (6) and the rotary disc piece (2) adjacent to the rotary drum (6).
7. The pneumatic bio-disc of claim 6, wherein: and a disinfection device is arranged in a hollow inner cavity of the rotary drum (6).
8. The pneumatic bio-disc of claim 6, wherein: the transmission shaft (1) is rotatably connected to one rotating end and is provided with a water absorbing ring (7).
9. A sewage treatment device comprises a sewage treatment tank (10), and is characterized in that: the pneumatic biological rotating disc of any one of claims 1 to 8, wherein the transmission shaft (1) is horizontally and rotatably arranged in a sewage treatment tank (10), and the sewage treatment tank (10) is internally divided into a natural reoxygenation area, an enhanced aeration area and a filtered water area in sequence along the horizontal direction; when sewage is added into the sewage treatment tank (10), the sewage passes through the natural reoxygenation area, the intensified aeration area and the filtered water area in sequence.
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| CN202020388088.XU CN212151764U (en) | 2020-03-25 | 2020-03-25 | Pneumatic biological rotating disc and sewage treatment device adopting same |
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| CN202020388088.XU CN212151764U (en) | 2020-03-25 | 2020-03-25 | Pneumatic biological rotating disc and sewage treatment device adopting same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886458A (en) * | 2024-03-14 | 2024-04-16 | 神木市恒农农牧业科技发展有限公司 | Beef cattle farm effluent treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886458A (en) * | 2024-03-14 | 2024-04-16 | 神木市恒农农牧业科技发展有限公司 | Beef cattle farm effluent treatment plant |
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