CN213739100U - Separate aeration upflow aerobic granular sludge integrated sewage treatment equipment - Google Patents
Separate aeration upflow aerobic granular sludge integrated sewage treatment equipment Download PDFInfo
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- CN213739100U CN213739100U CN202022628112.5U CN202022628112U CN213739100U CN 213739100 U CN213739100 U CN 213739100U CN 202022628112 U CN202022628112 U CN 202022628112U CN 213739100 U CN213739100 U CN 213739100U
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Abstract
The utility model discloses a separate aeration upflow aerobic granular sludge integrated sewage treatment device, which comprises a shell, an aeration tank, an upflow reaction tank, a sand filter and a water collecting tank, wherein an aeration disc is arranged at the bottom of the aeration tank; the aeration tank is communicated with the upflow reaction tank through a reaction tank water inlet pipe, water distribution pipes and water distribution heads are uniformly distributed at the bottom of the upflow reaction tank, the openings of the water distribution heads face downwards, and the openings of all the water distribution heads are positioned at the same horizontal height; the water collecting tank is communicated with the aeration tank through a return pipe, and a fine sand layer is arranged in the sand filter tank. In the integrated sewage treatment equipment of the utility model, the density of the water body at the bottom of the aeration tank is reduced and the pressure intensity is smaller in the aeration process, thereby realizing the self-circulation flow of sewage and saving energy; sewage flows downwards into the upflow reaction tank uniformly, so that sludge deposition is avoided; in the sewage rising process, the sludge is layered according to the rule that the sedimentation performance is strong at the bottom and the sedimentation performance is poor at the top, so that the granulation of the sludge and the increase of the grain size of the aerobic granular sludge are facilitated, and the sewage purification is realized.
Description
Technical Field
The utility model relates to a sewage treatment device, more specifically say specifically, especially relate to a separate aeration upflow type good oxygen granule mud integration sewage treatment device.
Background
At present, the mainstream technology of sewage treatment is a traditional activated sludge method, and the process realizes the removal of organic matters, nitrogen and phosphorus by utilizing a microorganism nitrification and denitrification mode. With the development of economy, the requirements of sewage treatment and the types of sewage are continuously increased, and the defects of low impact load resistance and poor harmful substance resistance of the traditional activated sludge are amplified.
The aerobic granular sludge is activated sludge formed by the self-coagulation of microorganisms under the aerobic condition, and compared with the traditional activated sludge, the activated sludge has higher microbial biomass, stronger activity, good settling property, impact load resistance and stronger toxic and harmful substance resistance. However, the prior method for culturing aerobic granular sludge and treating sewage by using the aerobic granular sludge adopts an intermittent water inlet mode, and the method reduces the sewage treatment efficiency to a greater extent. The utility model aims at providing an aerobic granular sludge sewage treatment device which can cultivate aerobic granular sludge in a short time and can continuously feed and discharge water to realize high-efficiency sewage treatment.
Disclosure of Invention
The utility model provides a separate aeration upflow aerobic granular sludge integrated sewage treatment device for overcoming the defects of the technical problems.
The utility model discloses a separate aeration upflow aerobic granular sludge integrated sewage treatment device, which comprises a shell, an aeration tank, an upflow reaction tank, a sand filter and a water collecting tank which are arranged in the shell, wherein an aeration disc is arranged at the bottom of the aeration tank; the shell is provided with a water inlet pipe communicated with the upper part of the aeration tank and a water outlet pipe communicated with the bottom of the sand filter tank; the method is characterized in that: the aeration tank is communicated with the upflow reaction tank through a reaction tank water inlet pipe, one end of the reaction tank water inlet pipe is communicated with the upper part of the aeration tank, and the other end is positioned at the bottom of the upflow reaction tank; a plurality of water distribution pipes are uniformly distributed at the bottom of the upflow reaction tank, the water distribution pipes are communicated with a water inlet pipe of the reaction tank, a plurality of water distribution heads are uniformly distributed on the water distribution pipes, the openings of the water distribution heads face downwards, and the openings of all the water distribution heads are positioned at the same horizontal height;
the water collecting tank is positioned at the upper part of the upflow reaction tank, a plurality of overflow weirs are uniformly arranged above the upflow reaction tank, the upper parts of the overflow weirs are provided with openings, and the end parts of the overflow weirs are provided with overflow ports communicated with the water collecting tank; the water collecting tank is communicated with the aeration tank through a return pipe, one end of the return pipe is communicated with the water collecting tank, and the other end of the return pipe is communicated with the bottom of the aeration tank; the water collecting tank is communicated with the sand filter through a communicating pipe, the communicating pipe is positioned above the return pipe, a fine sand layer for filtering impurities and suspended sludge in water is arranged in the sand filter, and the water outlet pipe is positioned below the fine sand layer.
The utility model discloses a divide and put aeration upflow aerobic granule mud integration sewage treatment device, the top in sand filter is provided with the water distribution groove, the upper end opening in water distribution groove, and a plurality of holes that leak have been seted up to the bottom in water distribution groove, and the water catch bowl is linked together through communicating pipe and water distribution groove.
The utility model discloses a divide and put aeration upflow aerobic granule mud integration sewage treatment device, the top of overflow weir is for going up along the cockscomb structure that the water at upflow reaction tank top evenly flows out.
The utility model discloses a divide and put aeration upflow aerobic granule mud integration sewage treatment device, be provided with the medicine storage tank that is used for saving organic carbon source solution or molysite solution in the casing.
The utility model discloses a divide and put aeration upflow aerobic granule mud integration sewage treatment device, the middle part of back flow is arranged in the sand filter, and the fine sand layer is arranged between back flow and sand filter inner wall, and the top and the below of fine sand layer are provided with backup pad and bottom suspension fagging respectively in the sand filter.
The utility model has the advantages that: the utility model discloses an integrated sewage treatment device, through setting up the aeration tank separately with the upflow reaction tank that forms granular sludge and carries out water purification, in the aeration tank through the aeration dish aeration oxygenating process of bottom, make the aeration tank bottom water density reduce and the pressure intensity is less, make the sewage in the intake chamber flow into the aeration tank through the back flow automatically, and then realize the self-loopa flow of sewage, need not to add the circulating pump additionally, practiced thrift the energy; after the sewage entering the upflow reaction tank is distributed by the water distribution pipes and the water distribution heads, the sewage flows out in a downward mode, sludge deposition at the bottom of the upflow reaction tank is avoided, meanwhile, the sewage flows from bottom to top, so that the sludge with poor settling property flows out along with water flow, aerobic granular sludge with good settling property is remained in the upflow reaction tank, organic matters and dissolved oxygen in the water are consumed to realize growth, the particle size of the granular sludge is increased, and the sewage treatment effect is ensured.
Drawings
FIG. 1 is a perspective view of the integrated sewage treatment apparatus of the present invention;
FIG. 2 is a perspective view of the integrated sewage treatment apparatus of the present invention;
FIG. 3 is a top view of the integrated sewage treatment apparatus of the present invention;
fig. 4, fig. 5, fig. 6 and fig. 7 are cross-sectional views of the integrated sewage treatment apparatus of the present invention.
In the figure: the device comprises a shell 1, an aeration tank 2, a upflow reaction tank 3, a sand filter 4, a water collecting tank 5, a water inlet pipe 6, a water outlet pipe 7, an aeration disc 8, a reaction tank water inlet pipe 9, a water distribution pipe 10, a water distribution head 11, an overflow weir 12, an overflow port 13, a backflow pipe 14, a water distribution tank 15, a communicating pipe 16, a medicine storage tank 17, an upper edge of 18 sawteeth, a water leakage hole 19, a fine sand layer 20, a lower supporting plate 21 and an upper supporting plate 22.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses an integration sewage treatment device's stereogram, stereogram and plan view have been given respectively, fig. 4 to fig. 7 all give the utility model discloses an integration sewage treatment device's cross-sectional view, shown sewage treatment device comprises casing 1, inlet tube 6, outlet pipe 7, aeration tank 2, upflow reaction tank 3, water catch bowl 5, sand filter 4, medicine storage tank 17, aeration tray 8, reaction tank inlet tube 9, water distributor 10, overflow weir 12, back flow 14, water distribution tank 15, fine sand layer 20, aeration tank 2 sets up in the one end of casing 1 inside cavity, medicine storage tank 17 and sand filter 4 are located the both sides of aeration tank 2. The inlet tube 6 communicates with each other with the upper portion of aeration tank 2, and the quantity of aeration dish 8 is a plurality of, and evenly sets up in the bottom of aeration tank 2, and the water catch bowl 5 communicates with each other with the bottom of aeration tank 2 through back flow 14, under the aeration of aeration dish 8, can realize the intensive mixing of inlet tube 6 intake and back flow 14 return water, increases aquatic dissolved oxygen. Meanwhile, under the aeration action of the aeration disc 8, the water rises along with the bubbles through aeration, the pressure at the bottom of the aeration tank 2 is reduced, and the water in the water collecting tank 5 is forced to flow into the bottom of the aeration tank 2 through the return pipe 14, so that the sewage self-circulation flow is realized under the condition of no power source, and the energy consumption in the sewage purification process is reduced.
The aeration tank 2 is communicated with the upflow reaction tank 3 through a reaction tank water inlet pipe 9, the water inlet of the reaction tank water inlet pipe 9 is communicated with the upper part of the aeration tank 2, and the water outlet end of the reaction tank water inlet pipe 9 is positioned at the bottom of the upflow reaction tank 3. A plurality of water distribution pipes 10 are uniformly distributed at the bottom of the upflow reaction tank 3, one ends of the water distribution pipes 10 are communicated with the water distribution pipes 10, a plurality of water distribution heads 11 are uniformly arranged on each water distribution pipe 10, and the water outlets of the water distribution heads 11 face downwards, so that sewage at the upper part of the aeration tank 2 flows into the water distribution pipes 10 through the water inlet pipe 9 of the reaction tank and then flows downwards through the water distribution heads 11, the sewage flows downwards to prevent sludge from silting at the bottom, and uniform water distribution can ensure that the sludge is not piled up at a place with a small water flow velocity to block a pipeline.
The number of the overflow weirs 12 is multiple, the overflow weirs 12 are uniformly arranged at the upper part of the upflow reaction tank 3, and the overflow weirs 12 are U-shaped grooves with openings at the upper ends; in order to make the sewage uniformly flow into each overflow weir 12 from above the upflow reaction tank 3, the upper edge of each overflow weir 12 is shown as a serrated upper edge 18. The end parts of the overflow weirs 12 are respectively provided with an overflow port 13 communicated with the water collecting tank 5, so that the sewage in the overflow weirs 12 flows into the water collecting tank 5, and the water collecting tank 5 is higher and is positioned at the upper part of the upflow reaction tank 3.
The sewage flows upwards from the bottom of the upflow reaction tank 3, the sludge at the bottom expands along with the sewage, the sludge is layered according to the rule that the sedimentation performance is strong at the lower part and the sedimentation performance is poor at the upper part, and the flocculent sludge rises to the overflow weir 12 along with the water flow and is collected in the water collection tank 5 through the overflow port 13. The size of the ascending flow rate can be determined by the size of the aeration quantity of the aeration tank 2, the larger the aeration quantity is, the larger the sewage circulation quantity in the equipment is, the larger the ascending flow rate is, the size of the ascending flow rate determines the height of sludge expansion, the sludge with poor sedimentation performance is discharged along with water flow, and the granular sludge with good sedimentation performance is screened out, so that the granulation of the sludge and the increase of the grain size of the aerobic granular sludge are facilitated.
The water collecting tank 5 is communicated with the aeration tank 2 through a return pipe 14, the water inlet of the return pipe 14 is communicated with the water collecting tank 5, and the water outlet of the return pipe 14 is communicated with the bottom of the aeration tank 2, so that the sewage in the water collecting tank 5 flows back to the aeration tank 2. The upper part of the sand filter 4 is provided with a water distribution tank 15, the water distribution tank 15 is a U-shaped groove with an opening at the upper end, the bottom of the water distribution tank 15 is provided with a plurality of water leakage holes 19, the water distribution tank 15 also realizes the water collecting function, the water collecting tank 5 is communicated with the water distribution tank 15 through a communicating pipe 16, and the water distribution tank 15 is positioned above the loop pipe 14. The sewage in the water collecting tank 5 flows into the water distributing tank 15 through the communicating pipe 16 and then flows into the sand filter 4 through the water leakage holes 19. A fine sand layer 20 is arranged in the sand filter 4, a lower supporting plate 21 and an upper supporting plate 22 which are used for bearing and positioning the fine sand layer 20 are arranged in the sand filter 4, and water permeable holes are formed in the lower supporting plate 21 and the upper supporting plate 22.
Thus, most of the sewage in the water collecting tank 5 enters the bottom of the aeration tank 2 through the return pipe 14, and a small part of the sewage enters the sand filter tank 4 through the communicating pipe 16 and the water distributing tank 15. In order to reduce the hydraulic loss of sewage circulation in equipment, improve the water circulation frequency and improve the quality of outlet water, under the condition that the size of the sand filter tank 4 is met, the diameter of the return pipe 12 is larger than 200mm, the dissolved oxygen in the return water is fully utilized by microorganisms in the upflow reaction tank 3, the return pipe enters the bottom of the aeration tank 2 and then is oxygenated again, and a large amount of air carried in the outflow water provides oxygen required by growth for aerobic granular sludge. Because the water yield is equal to the water inflow, the larger the aeration amount is, the larger the water flow rate in the equipment is, the larger the reflux amount is, namely the reflux amount can be determined by the aeration amount of the aeration tank 2. The suspended sludge contained in the return water is broken through a large amount of aeration, and can enter the bottom of the upflow reaction tank 3 again and be attached to the granular sludge at the bottom, so that the formation of the granular sludge is promoted.
The sewage entering the sand filter 4 is absorbed and filtered by the fine sand layer 20 from top to bottom to absorb impurities and suspended sludge in the water, and the water flows out through the water outlet pipe 7. The fine sludge adsorbed in the fine sand affects the water outlet rate and the adsorption efficiency, so the communicating pipe 16 needs to be closed periodically, and water is fed through the water outlet pipe 7 for back flushing.
The medicine storage tank 17 can store an organic carbon source and an iron salt solution, and when the pollutant in the inlet water is low, the organic carbon source can be added to supplement nutrient substances required by aerobic microorganisms and nitrobacteria in the upflow reaction tank 3. The ferric salt solution is used for removing the phosphorus element.
The utility model discloses a separate aeration upflow aerobic granule mud integration sewage treatment device's processing method, its characterized in that realizes through following step:
a) aerating, oxygenating and refluxing, wherein sewage firstly enters an aeration tank through a water inlet pipe, and the aeration of an aeration disc makes the inlet water and the original sewage fully mixed, so that the dissolved oxygen in the water is improved; meanwhile, aeration enables water to rise along with bubbles, the pressure at the bottom of the aeration tank is reduced, and the water in the water collecting tank is forced to flow into the bottom of the aeration tank through a return pipe, so that the sewage self-circulation flow is realized under the condition of no power source;
b) the sewage at the upper part of the aeration tank enters the bottom of the upflow reaction tank through a water inlet pipe of the reaction tank, and the sewage flows downwards through a water distribution head on a water distribution pipe to realize uniform water distribution; sewage flows upwards from the bottom of the upflow reaction tank, sludge at the bottom expands along with the sewage, and the sludge is layered according to the rule that the sedimentation performance is strong at the lower part and the sedimentation performance is poor at the upper part, so that flocculent sludge with poor sedimentation performance flows into an overflow weir along with water flow, and granular sludge with good sedimentation performance is retained in the upflow reaction tank, thereby being beneficial to granulation of the sludge and increase of the grain size of aerobic granular sludge;
c) sewage backflow, wherein sewage containing flocculent sludge entering the overflow weir enters the water collecting tank through the overflow port, most of the sewage in the water collecting tank enters the bottom of the aeration tank through the backflow pipe, and a small part of the sewage flows into the sand filter through the communicating pipe; the suspended sludge contained in the return water is broken through a large amount of aeration, enters the bottom of the upflow reaction tank again and is attached to the granular sludge at the bottom, so that the formation of the granular sludge is promoted;
d) and filtering and flowing out, wherein sewage in the water collecting tank enters the water distribution tank through the communicating pipe, then flows into the sand filter tank through the water leakage holes at the bottom of the water distribution tank, and flows out through the water outlet pipe after being adsorbed and filtered by the fine sand layer from top to bottom.
The utility model discloses an integration sewage treatment device cultivates the mud phase, and optional throwing throws ordinary sewage plant mud, is biochemical pond activated sludge best, can shorten the culture time of good oxygen granule mud greatly. The sludge is heavier than water and has a limited elevation of sludge rise, with a visible sludge layer below the liquid level. The height of a sludge layer is required to be observed frequently during the operation of equipment, sludge in an initial-stage tank is flocculent sludge, the aeration amount is not too high, a large amount of sludge is prevented from being lost, and the sludge is spontaneously condensed into granular sludge at a small ascending flow rate. Along with the descending of the sludge layer, namely the sludge settleability is enhanced, the aeration rate is slowly increased, and the quantity and the particle diameter of the granular sludge are gradually increased. If the sludge in the inlet water is less, the growth of granular sludge is slower, and the sludge layer is lowered to a certain height, the activated sludge of the sewage plant needs to be added into the aeration tank 2 to quickly increase the sludge concentration.
Claims (6)
1. A separate aeration upflow aerobic granular sludge integrated sewage treatment device comprises a shell (1), and an aeration tank (2), an upflow reaction tank (3), a sand filter (4) and a water collection tank (5) which are arranged in the shell, wherein an aeration disc (8) is arranged at the bottom of the aeration tank; the shell is provided with a water inlet pipe (6) communicated with the upper part of the aeration tank and a water outlet pipe (7) communicated with the bottom of the sand filter tank; the method is characterized in that: the aeration tank is communicated with the upflow reaction tank (3) through a reaction tank water inlet pipe (9), one end of the reaction tank water inlet pipe is communicated with the upper part of the aeration tank, and the other end is positioned at the bottom of the upflow reaction tank; a plurality of water distribution pipes (10) are uniformly distributed at the bottom of the upflow reaction tank, the water distribution pipes are communicated with a water inlet pipe (9) of the reaction tank, a plurality of water distribution heads (11) are uniformly distributed on the water distribution pipes, the openings of the water distribution heads face downwards, and the openings of all the water distribution heads are positioned at the same horizontal height;
the water collecting tank (5) is positioned at the upper part of the upflow reaction tank (3), a plurality of overflow weirs (12) are uniformly arranged above the upflow reaction tank, the upper parts of the overflow weirs are provided with openings, and the end parts of the overflow weirs are provided with overflow ports (13) communicated with the water collecting tank; the water collecting tank is communicated with the aeration tank through a return pipe (14), one end of the return pipe is communicated with the water collecting tank, and the other end is communicated with the bottom of the aeration tank; the water collecting tank is communicated with the sand filter (4) through a communicating pipe (16), the communicating pipe is positioned above the return pipe, a fine sand layer (20) for filtering impurities and suspended sludge in water is arranged in the sand filter, and the water outlet pipe (7) is positioned below the fine sand layer.
2. The split aeration upflow aerobic granular sludge integrated sewage treatment equipment as claimed in claim 1, which is characterized in that: a water distribution tank (15) is arranged above the sand filter (4), the upper end of the water distribution tank is open, a plurality of water leakage holes (19) are formed in the bottom of the water distribution tank, and the water collection tank (5) is communicated with the water distribution tank (15) through a communication pipe (16).
3. The split aeration upflow aerobic granular sludge integrated sewage treatment equipment as claimed in claim 1 or 2, which is characterized in that: a serrated upper edge (18) which is convenient for water at the top of the upflow reaction tank (3) to uniformly flow out is arranged above the overflow weir (12).
4. The split aeration upflow aerobic granular sludge integrated sewage treatment equipment as claimed in claim 1 or 2, which is characterized in that: a medicine storage tank (17) for storing organic carbon source solution or iron salt solution is arranged in the shell (1).
5. The split aeration upflow aerobic granular sludge integrated sewage treatment equipment as claimed in claim 1 or 2, which is characterized in that: the middle part of the return pipe (14) is positioned in the sand filter (4), the fine sand layer (20) is positioned between the return pipe and the inner wall of the sand filter, and an upper supporting plate (22) and a lower supporting plate (21) are respectively arranged above and below the fine sand layer in the sand filter.
6. The split aeration upflow aerobic granular sludge integrated sewage treatment equipment as claimed in claim 1 or 2, which is characterized in that: under the condition that the inner diameter of the sand filter (4) meets the requirement, the inner diameter of the return pipe (14) is not less than 200 mm.
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| CN202022628112.5U CN213739100U (en) | 2020-11-13 | 2020-11-13 | Separate aeration upflow aerobic granular sludge integrated sewage treatment equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321093A (en) * | 2020-11-13 | 2021-02-05 | 山东泰山自迩环保科技有限公司 | Separate aeration upflow aerobic granular sludge integrated sewage treatment equipment and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321093A (en) * | 2020-11-13 | 2021-02-05 | 山东泰山自迩环保科技有限公司 | Separate aeration upflow aerobic granular sludge integrated sewage treatment equipment and method |
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