CN217627809U - Sequencing batch denitrification reactor with adjustable aeration depth - Google Patents
Sequencing batch denitrification reactor with adjustable aeration depth Download PDFInfo
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- CN217627809U CN217627809U CN202221024986.2U CN202221024986U CN217627809U CN 217627809 U CN217627809 U CN 217627809U CN 202221024986 U CN202221024986 U CN 202221024986U CN 217627809 U CN217627809 U CN 217627809U
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- 238000005273 aeration Methods 0.000 title claims abstract description 39
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000003814 drug Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 7
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 6
- 238000011001 backwashing Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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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
Abstract
The utility model discloses a sequencing batch denitrification reactor with adjustable aeration depth. The reactor comprises a reactor main body, a PLC electric control cabinet and a fan; the reactor main body consists of an outer cylinder and an inner cylinder, the inner cylinder is sleeved inside the outer cylinder, and the inner cylinder is connected with the outer cylinder through a support, so that a certain space is formed between the inner cylinder and the outer cylinder; the side wall of the outer barrel is connected with a water inlet electric valve, a gas inlet electric valve, a liquid level meter, a medicine inlet electric valve, a water discharge electric valve and a mud discharge electric valve through pipe fittings; an aeration disc and biological fillers are arranged in the inner cylinder, and a perforated plate is arranged at the lower part of the inner cylinder; the PLC electric control cabinet is connected with the electrical element through a wire, and the PLC electric control cabinet acquires signals of the electrical element and sends instructions to the electrical element. The utility model relates to a sequencing batch denitrification reactor with adjustable aeration depth, which has the characteristics of compact structure, less energy loss, investment saving, high impact load resistance and good denitrification effect.
Description
Technical Field
The utility model relates to the technical field of sewage and wastewater denitrification treatment equipment, in particular to a sequencing batch denitrification reactor with adjustable aeration depth.
Background
A large amount of nitrogen-containing wastewater is discharged in industrial and agricultural production, which is one of the reasons that algae and other plankton are excessively bred, eutrophication of a water body is accelerated, and water quality is deteriorated. The accumulation of nitrate and nitrite in the water can produce toxic action on aquatic organisms and human bodies. In the face of the national stricter and stricter control of total nitrogen indexes, the development of an economical, efficient and energy-saving denitrification technology is urgently needed.
The principle of the conventional biological denitrification technology is as follows: nitrifying bacteria carry out nitration reaction under aerobic condition to convert ammonia nitrogen into nitrate nitrogen, and then denitrifying bacteria reduce the nitrate nitrogen into nitrogen under anoxic condition, thereby transferring nitrogen in the wastewater into gas phase. The Sequencing Batch Biofilm Reactor SBBR (Sequencing Biofilm Batch Reactor, also called membrane SBR) is a complex ecosystem which is formed by filling different fillers (such as fiber fillers, activated carbon, ceramsite and the like) in a bioreactor and longitudinally comprising microbial communities with different ecological niches and the like, aerobic, facultative and anaerobic micro-areas are formed by oxygen mass transfer gradients, the mutual-aid metabolic capacity of different microorganisms and the stability of the Reactor are fully exerted, and the synchronous nitrification and denitrification can be realized. The Chinese patent application CN216191395U 'an SBR short-cut nitrification-denitrification device for biochar enhanced denitrification' overcomes the defects of long start-up time, harsh operating environment and the like in the prior art, and ensures that the nitrite accumulation is faster, the operation is more stable and the denitrification effect is better. However, the production enterprises in light and busy seasons or the maintenance of production equipment may cause great water quality fluctuation, and the corresponding impact load will cause the phenomenon that the quality of treated effluent water cannot reach the standard and is discharged.
Therefore, if the aeration depth can be adjusted according to the change of water quality, the requirements of the effective area of the wastewater nitrification and denitrification reaction and dissolved oxygen can be met, so that the stable standard reaching of the total nitrogen after the wastewater treatment can be realized, and the method has important practical significance for the application and popularization of the sequencing batch denitrification reactor, the prevention of water eutrophication and the sustainable utilization of water resources.
SUMMERY OF THE UTILITY MODEL
Aiming at the defect that the total nitrogen of the treated water can not reach the standard due to the great water quality fluctuation in the prior art, the utility model provides a sequencing batch denitrification reactor with adjustable aeration depth, which ensures that the denitrification effect is better and more stable.
The utility model discloses a realize through following technical scheme:
a sequencing batch denitrification reactor with adjustable aeration depth comprises a reactor main body, a PLC electric control cabinet and a fan, wherein the PLC electric control cabinet and the fan are arranged beside the reactor main body; the reactor main body consists of an outer cylinder and an inner cylinder, the inner cylinder is sleeved inside the outer cylinder, and the inner cylinder is connected with the outer cylinder through a support, so that a certain space is formed between the inner cylinder and the outer cylinder; the side wall of the outer barrel is connected with a water inlet electric valve, a gas inlet electric valve, a liquid level meter, a medicine inlet electric valve, a water discharge electric valve and a mud discharge electric valve through pipe fittings; the lower part of the outer cylinder is provided with a cone hopper; the water inlet electric valve, the liquid level meter and the medicine inlet electric valve are positioned on a pipe fitting at the top of the outer barrel, the air inlet electric valve is arranged on the pipe fitting on the outer side wall surface of the outer barrel, and the water discharge electric valve is arranged on the pipe fitting at the position below the side surface of the outer barrel; the sludge discharge electric valve is positioned on the pipe fitting at the bottom of the cone hopper; an aeration disc and biological fillers are arranged in the inner cylinder, and a perforated plate is arranged at the lower part of the inner cylinder; the PLC electric control cabinet is connected with the electrical element through a wire, and the PLC electric control cabinet acquires a signal of the electrical element and sends an instruction to the electrical element; the fan is connected with the pipe fitting that is provided with the motorised valve that admits air, and the aeration dish is connected through the pipe fitting with the motorised valve that admits air.
Further, the number of the intake electric valves is 4.
Furthermore, the number of the aeration discs is 4.
Furthermore, the number of the air inlet electric valves is the same as that of the aeration discs.
Furthermore, the utility model also comprises a bottom support frame; the bottom of the reactor main body is connected with a bottom support frame.
Further, the height-diameter ratio of the outer cylinder is (3.5 to 5.5): 1, and the height-diameter ratio of the inner cylinder is (3.0 to 5.0): 1.
The utility model discloses the reactor is thrown the dosage by the automatically controlled cabinet of intaking motorised valve, PLC and level gauge joint control waste water, is thrown the dosage by the automatically controlled cabinet of PLC and the organic carbon source of the motorised valve joint control that advances medicine again, is thrown the dosage by automatically controlled cabinet of PLC and the motorised valve joint control air that admits air again, by automatically controlled cabinet of PLC, drainage motorised valve and level gauge joint control displacement again, by automatically controlled cabinet of PLC and the displacement motorised valve joint control displacement of mud.
Furthermore, the air inlet electric valve can be selectively opened according to the water quality of inlet water.
Furthermore, the PLC electric control cabinet and the air inlet electric valve jointly control backwashing, the air inlet electric valve is completely opened during backwashing, and the opening time is controlled by the PLC electric control cabinet.
Furthermore, the PLC electric control cabinet and the sludge discharge electric valve jointly control the sludge discharge frequency and the sludge discharge duration.
Furthermore, the reactors are operated in a sequential batch mode, and each sequential batch comprises the working procedures of water feeding, gas feeding, medicine feeding, water draining and sludge discharging.
The utility model relates to an aeration degree of depth adjustable sequencing batch denitrification reactor has device compact structure, and energy loss is few, and the investment is economized, and shock load resistance is high, the effectual characteristics of denitrogenation. The utility model discloses the new improvement in following four aspects has been done to the device:
1. the utility model discloses an electrically operated valve that admits air can open according to the quality of water of intaking selectively, when ammonia nitrogen: nitrate nitrogen = [2.0 to 3.0] than 1 in the intake, opens first air intake electrically operated valve; when the ammonia nitrogen in the inlet water is more than the nitrate nitrogen in the inlet water by 3.0 to 4.0 to 1, the second air inlet electric valve is opened, when the ammonia nitrogen in the inlet water is more than the nitrate nitrogen by 4.0 to 5.0 to 1, the third air inlet electric valve is opened, and when the ammonia nitrogen in the inlet water is more than 5.0 to 1, the fourth air inlet electric valve is opened, so that the requirements of the effective area of the wastewater nitrification and denitrification reaction and the dissolved oxygen are met, and the stable standard of the total nitrogen after the wastewater treatment is realized.
2. The utility model discloses a PLC automatically controlled cabinet and row's mud motorised valve can the joint control arrange the mud frequency with arrange long when mud.
3. The utility model discloses a batch operation in proper order, each preface is criticized including intaking, admitting air, advancing medicine, drainage and row's mud process. The device is convenient to operate and regulate, avoids the phenomenon of short flow in continuous operation, and ensures that the quality of water discharged from each batch can reach the standard.
4. The height-diameter ratio of the outer cylinder of the utility model is (3.5 to 5.5) to 1, and the height-diameter ratio of the inner cylinder is (3.0 to 5.0) to 1.
Drawings
Fig. 1 is a schematic view of the device of the present invention.
Fig. 2 is a schematic diagram of a perforated plate structure.
Fig. 3 is a schematic structural view of the stent 20.
The various components in the figure are labeled as follows: a water inlet electric valve 1; an outer cylinder 2; an inner cylinder 3; 4, biological filler; a first inlet electric valve 5; a second intake electric valve 6; a third intake electric valve 7; a fourth intake electric valve 8; a bottom support 9; a fan 10; a PLC electric control cabinet 11; a liquid level meter 12; a medicine inlet electric valve 13; a first aeration tray 14; a reactor body 15; a second aeration pan 16; a third aeration disk 17; a fourth aeration pan 18; a perforated plate 19; a support 20; a drain electric valve 21; mud discharging electric valve 22.
Detailed Description
In the following description, technical solutions are set forth in conjunction with specific figures in order to provide a thorough understanding of the present invention. The present invention can be implemented in many ways other than those described herein, and similar popularization and implementation examples made by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, and as shown in fig. 1, a sequencing batch denitrification reactor with adjustable aeration depth is characterized in that: comprises a reactor main body 15, a PLC electric control cabinet 11 and a fan 10 which are arranged beside the reactor main body; the reactor main body consists of an outer cylinder 2 and an inner cylinder 3, the inner cylinder 3 is sleeved inside the outer cylinder 2, the inner cylinder 3 is connected with the outer cylinder 2 through a support 20, and the structure of the support 20 is shown in figure 3, so that a certain space is formed between the inner cylinder 3 and the outer cylinder 2; the side wall of the outer cylinder 2 is connected with a water inlet electric valve 1, a gas inlet electric valve, a liquid level meter 12, a medicine inlet electric valve 13, a water discharge electric valve 21 and a mud discharge electric valve 22 through pipe fittings; the lower part of the outer cylinder 2 is provided with a cone hopper; the electric water inlet valve 1, the liquid level meter 12 and the electric medicine feeding valve 13 are positioned on a pipe fitting at the top of the outer barrel 2, wherein the electric water inlet valve 1 controls the inlet of raw water, the electric medicine feeding valve 13 controls the inlet of an external carbon source, the electric air inlet valve is arranged on a pipe fitting on the outer side wall surface of the outer barrel 2, and the electric water discharge valve 21 is arranged on a pipe fitting at a position lower than the side surface of the outer barrel 2; the sludge discharge electric valve 22 is positioned on a pipe fitting at the bottom of the conical hopper; an aeration disc and biological fillers 4 are arranged in the inner cylinder 3, a perforated plate 19 is arranged at the lower part of the inner cylinder 3, and the structure of the perforated plate 19 is shown in figure 2; the PLC electric control cabinet 11 is connected with the electric appliance element through a wire, and the PLC electric control cabinet 11 acquires a signal of the electric appliance element and sends an instruction to the electric appliance element; the blower 10 is connected to a pipe provided with an air inlet electric valve, the aeration disc is connected to the air inlet electric valve through a pipe, the number of the aeration disc and the number of the air inlet electric valves in this embodiment are 4, as shown in fig. 1, the air inlet electric valves are respectively a first air inlet electric valve 5, a second air inlet electric valve 6, a third air inlet electric valve 7 and a fourth air inlet electric valve 8, and the aeration discs are respectively a first aeration disc 14, a second aeration disc 16, a third aeration disc 17 and a fourth aeration disc 18. The present embodiment further comprises a bottom support 9; the bottom of the reactor body 15 is connected with a bottom support frame 9. The reactors are operated in sequence in batches, and each sequence comprises the working procedures of water inlet, gas inlet, medicine inlet, water discharge and sludge discharge. Examples example 1 and example 2 are pilot examples, which are further illustrated below.
Example 1
In this embodiment, the height/diameter ratio of the outer cylinder is 4.0: 1, and the height/diameter ratio of the inner cylinder is 5.0: 1.
In this embodiment, the number of the air inlet electric valves is the same as that of the aeration discs. The wastewater adding amount (1 m) is controlled by the combination of a water inlet electric valve, a PLC electric control cabinet and a liquid level meter 3 ) The dosage of the organic carbon source (sodium acetate 264 g) is controlled by the combination of a PLC electric control cabinet and a medicine feeding electric valve, and the dosage of the air (5.4 m) is controlled by the combination of the PLC electric control cabinet and an air inlet electric valve 3 ) And the water discharge (1 m) is controlled by the PLC electric control cabinet, the water discharge electric valve and the liquid level meter 3 ) A PLC electric control cabinet andthe mud discharging electric valve controls the mud discharging amount (10L) in a combined mode.
The second electric valve for air intake is opened according to the water quality of the inflow water (total nitrogen of the raw water is 52.8 mg/L, ammonia nitrogen is = 3.2: 1).
The PLC electric control cabinet and the air inlet electric valve jointly control backwashing, the air inlet electric valve is completely opened during backwashing, and the opening time (5 min) is controlled by the PLC electric control cabinet.
And the PLC electric control cabinet and the sludge discharge electric valve are used for jointly controlling the sludge discharge frequency and the sludge discharge duration (2 min).
The treated effluent quality: the total nitrogen is 7.8mg/L and can reach the emission standard requirement of less than or equal to 15mg/L.
Example 2
In this embodiment, the height/diameter ratio of the outer cylinder is 4.0: 1, and the height/diameter ratio of the inner cylinder is 5.0: 1.
In this embodiment, the number of the air inlet electric valves is the same as that of the aeration discs. The wastewater adding amount (1 m) is controlled by the combination of a water inlet electric valve, a PLC electric control cabinet and a liquid level meter 3 ) The dosage of the organic carbon source (sodium acetate 239 g) is controlled by the combination of a PLC electric control cabinet and a medicine feeding electric valve, and the dosage of the air (5.4 m) is controlled by the combination of the PLC electric control cabinet and an air inlet electric valve 3 ) The PLC electric control cabinet, the electric drainage valve and the liquid level meter jointly control the drainage (1 m) 3 ) The PLC electric control cabinet and the sludge discharge electric valve are used for jointly controlling the sludge discharge amount (10L).
And (4) opening the third air inlet electrovalve according to the water quality of the inlet water (the total nitrogen of the raw water is 47.8 mg/L, and the ammonia nitrogen to the nitrate nitrogen =4.2 to 1).
The PLC electric control cabinet and the air inlet electric valve are used for controlling backwashing in a combined mode, the air inlet electric valve is completely opened during backwashing, and the opening time (5 min) is controlled by the PLC electric control cabinet.
And the PLC electric control cabinet and the sludge discharge electric valve are used for jointly controlling the sludge discharge frequency and the sludge discharge duration (2 min).
The treated effluent quality: the total nitrogen is 10.6 mg/L and can reach the requirement of emission standard of less than or equal to 15mg/L.
The utility model discloses a theory of operation: firstly, raw water enters a reactor main body, and the adding amount of the raw water is jointly controlled by a water inlet electric valve, a PLC electric control cabinet and a liquid level meter; then adding an organic carbon source, wherein the amount of the organic carbon source is controlled by a PLC electric control cabinet and a medicine feeding electric valve in a combined manner; opening an air inlet electric valve, selecting the air inlet electric valve according to the quality of inlet water, and controlling the air adding amount by combining a PLC electric control cabinet and the air inlet electric valve; the air-lift principle is utilized to realize the flow of the wastewater in the inner cylinder and the outer cylinder, after the biological reaction reaches the set time, the electric drainage valve is opened, and the drainage quantity is jointly controlled by the PLC electric control cabinet, the electric drainage valve and the liquid level meter; and then, opening a sludge discharge electric valve, wherein the sludge discharge amount is controlled by the PLC electric control cabinet and the sludge discharge electric valve in a combined manner. And finishing the batch and entering the next batch.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (6)
1. A sequencing batch denitrification reactor with adjustable aeration depth is characterized in that: comprises a reactor main body (15), a PLC electric control cabinet (11) and a fan (10) which are arranged beside the reactor main body; the reactor main body consists of an outer cylinder (2) and an inner cylinder (3), the inner cylinder (3) is sleeved inside the outer cylinder (2), and the inner cylinder (3) is connected with the outer cylinder (2) through a support (20) so that a certain space is formed between the inner cylinder (3) and the outer cylinder (2); the side wall of the outer cylinder (2) is connected with a water inlet electric valve (1), an air inlet electric valve, a liquid level meter (12), a medicine inlet electric valve (13), a water discharge electric valve (21) and a mud discharge electric valve (22) through pipe fittings; the lower part of the outer cylinder (2) is provided with a cone hopper; the water inlet electric valve (1), the liquid level meter (12) and the medicine inlet electric valve (13) are positioned on a pipe fitting at the top of the outer cylinder (2), the air inlet electric valve is arranged on the pipe fitting on the outer side wall surface of the outer cylinder (2), and the water discharge electric valve (21) is arranged on the pipe fitting at the position below the side surface of the outer cylinder (2); the sludge discharge electric valve (22) is positioned on the pipe fitting at the bottom of the cone hopper; an aeration disc and biological fillers (4) are arranged in the inner cylinder (3), and a perforated plate (19) is arranged at the lower part of the inner cylinder (3); the PLC electric control cabinet (11) is connected with the electrical element through a wire, and the PLC electric control cabinet (11) collects signals of the electrical element and sends instructions to the electrical element; the fan (10) is connected with a pipe fitting provided with an air inlet electric valve, and the aeration disc is connected with the air inlet electric valve through the pipe fitting.
2. The sequencing batch denitrification reactor with adjustable aeration depth of claim 1, wherein: the number of the air inlet electric valves is 4.
3. The sequencing batch denitrification reactor with adjustable aeration depth of claim 1, wherein: the number of the aeration discs is 4.
4. The sequencing batch denitrification reactor with adjustable aeration depth of claim 1, wherein: the number of the air inlet electric valves is the same as that of the aeration discs.
5. The sequencing batch denitrification reactor with adjustable aeration depth of claim 1, wherein: also comprises a bottom support frame (9); the bottom of the reactor main body (15) is connected with a bottom support frame (9).
6. The adjustable aeration depth sequencing batch denitrification reactor of claim 1, wherein: the height-diameter ratio of the outer cylinder is (3.5 to 5.5): 1, and the height-diameter ratio of the inner cylinder is (3.0 to 5.0): 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221024986.2U CN217627809U (en) | 2022-04-30 | 2022-04-30 | Sequencing batch denitrification reactor with adjustable aeration depth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221024986.2U CN217627809U (en) | 2022-04-30 | 2022-04-30 | Sequencing batch denitrification reactor with adjustable aeration depth |
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| CN217627809U true CN217627809U (en) | 2022-10-21 |
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Effective date of registration: 20231228 Address after: 519000, 5th floor, 5-339 (centralized office area), Yunxi Valley Digital Industrial Park, No. 168 Tourist Road, Xiangzhou District, Zhuhai City, Guangdong Province (Meixi Commercial Plaza Block B) Patentee after: Zhuhai Lianyuxing Environmental Protection Technology Co.,Ltd. Address before: No. 77, Luowu Village, Shengli Village Committee, Tuocheng Town, Longchuan County, Heyuan City, Guangdong Province 517300 Patentee before: Luo Xinhao |