CN116477763A - Aerobic-anaerobic strict partition complete sewage treatment device - Google Patents
Aerobic-anaerobic strict partition complete sewage treatment device Download PDFInfo
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- CN116477763A CN116477763A CN202310751823.7A CN202310751823A CN116477763A CN 116477763 A CN116477763 A CN 116477763A CN 202310751823 A CN202310751823 A CN 202310751823A CN 116477763 A CN116477763 A CN 116477763A
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- cylinder
- annular partition
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- 238000005192 partition Methods 0.000 title claims abstract description 157
- 239000010865 sewage Substances 0.000 title claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 127
- 238000005273 aeration Methods 0.000 claims description 30
- 238000009826 distribution Methods 0.000 claims description 29
- 230000009189 diving Effects 0.000 claims description 13
- 238000004065 wastewater treatment Methods 0.000 claims description 13
- 238000005276 aerator Methods 0.000 claims description 12
- 239000013049 sediment Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 description 37
- 239000010802 sludge Substances 0.000 description 35
- 244000005700 microbiome Species 0.000 description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- 230000005484 gravity Effects 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 230000005514 two-phase flow Effects 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 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 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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 application belongs to the technical field of sewage treatment, provides an aerobic-anaerobic strict partition's integrated complete set sewage treatment plant, includes: the main body shell is a hollow cylinder with a sealed bottom formed by sequentially connecting a first vertical cylinder, a second horn-shaped cylinder with a wide upper part and a narrow lower part and a third vertical cylinder up and down; set up a plurality of baffles in main part shell, include: the first vertical annular partition plate, the second vertical annular partition plate and the third horn-shaped partition plate are sequentially connected up and down, and a first diversion channel is formed in the second vertical annular partition plate; the top of the second vertical annular partition plate is sleeved in the first vertical annular partition plate, and a first connecting channel is formed between the first vertical annular partition plate and the second vertical annular partition plate; a second connecting channel is formed between the third horn-shaped partition plate and the second horn-shaped cylinder; a second diversion channel is formed between the first vertical cylinder and the second vertical annular partition plate and between the first vertical cylinder and the third horn-shaped partition plate; the first connecting channel and the second connecting channel are respectively communicated with the first diversion channel and the second diversion channel. The device is suitable for a short-cut nitrification and denitrification process.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an integrated complete sewage treatment device with aerobic-anaerobic strict partition.
Background
In the field of sewage treatment, when a traditional biochemical system is utilized to treat small-scale sewage, such as rural area sewage, the consumption of carbon is large, and sewage treatment facilities occupy large area, have high cost and have large operation and maintenance difficulty; and because of factors such as topography and the like, different regional conditions and sewage treatment scales are different, and a reproducible and promoted small-scale sewage treatment scheme is more deficient.
The integrated sewage treatment device utilizes ingenious design, integrates anoxic, aerobic, overflow, sludge discharge and the like in the traditional sewage treatment into one device by means of technical means such as aeration, circulation and the like, and can realize the advantages of small occupied area, flexible application scene and high treatment efficiency.
However, the current integrated sewage treatment device still has the technical problems of unobvious aerobic and anaerobic partition, lower denitrification performance, unstable effluent quality, low concentration enrichment of biological membrane biological concentration, high treatment cost, low integration degree and the like.
Disclosure of Invention
The following presents a simplified summary of the application in order to provide a basic understanding of some aspects of the application. It should be understood that this summary is not an exhaustive overview of the application. It is not intended to identify key or critical elements of the application or to delineate the scope of the application. Its purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
In view of the above-mentioned drawbacks of the prior art, the present application aims to provide an integrated complete sewage treatment device with aerobic-anaerobic strict partition, which has a simple structure and can realize aerobic-anaerobic strict partition, so as to solve the problems of inflexibility, high treatment cost and high operation and maintenance difficulty of the current small and medium-scale sewage treatment.
According to one aspect of the present application, there is provided an integrated wastewater treatment plant of aerobic-anaerobic strict partition, comprising:
the main body shell is a hollow cylinder with a sealed bottom formed by sequentially connecting a first vertical cylinder, a second horn-shaped cylinder and a third vertical cylinder from top to bottom, and the second horn-shaped cylinder is arranged in a manner of being wider at the upper part and narrower at the lower part;
set up in a plurality of baffles in the main part shell includes: the first vertical annular partition plate, the second vertical annular partition plate and the third horn-shaped partition plate are sequentially connected up and down and internally form a first diversion channel; the top of the second vertical annular partition plate is sleeved in the first vertical annular partition plate, and a space between the sleeved parts forms a first connecting channel; the third horn-shaped partition plate is arranged in a manner of narrow upper part and wide lower part, and a second connecting channel is formed between the third horn-shaped partition plate and the second horn-shaped cylinder;
A second diversion channel is formed between the first vertical cylinder and the second vertical annular partition plate as well as between the first vertical cylinder and the third horn-shaped partition plate; the first connecting channel and the second connecting channel are respectively communicated with the first diversion channel and the second diversion channel.
Compared with the prior art, the beneficial effects of this application are:
first, the main part shell of the integrative complete sewage treatment device of good oxygen-anaerobism strict partition that this application provided only encloses by the panel and closes vertical section of thick bamboo and the loudspeaker form section of thick bamboo that forms and constitute, and its inside only encloses vertical annular baffle that forms and loudspeaker form baffle by the panel and constitutes, and the structure is retrencied, and processing equipment is simple and convenient, and device integration degree is high, and it is convenient to hoist and mount, can adapt to the sewage treatment application environment of many scenes.
Second, the utility model provides an inside of integration sewage treatment plant relies on the relative relation of part self position only, is formed with first water conservancy diversion passageway, second water conservancy diversion passageway, first connecting channel, second connecting channel, deposit overflow channel, and the function subregion is clear and definite, can realize good oxygen-anaerobism strict partition, and space utilization is high, can realize sewage treatment efficiency's maximize. The first connecting channel can realize the multiple functions of water body diversion and air filtration, the second connecting channel realizes the water body diversion at a large angle, the high efficiency and the continuity of water body circulation in the whole forming device reach the advantages of stable flow state, good mixing effect and high mass transfer efficiency, and the sewage treatment efficiency and the water outlet effect are ensured.
Thirdly, the integrated sewage treatment device provided by the application is properly provided with the water inlet and supplementing device and the submerged aerator to form sewage circulation, so that the short-cut nitrification and denitrification reaction can be carried out; the energy consumption equipment only comprises a fan device and a diving aeration device, so that the energy consumption of sewage treatment is greatly reduced. The whole flow direction of sewage treatment in the device is vertical, the occupied area is small, the space utilization efficiency is high, and the circulation of water in the device can be realized only by relying on the diving aeration device and the self gravity of the water body. The air inflow is controllable, the short-cut nitrification and denitrification reaction in the device is realized, the treatment efficiency and the effluent quality are ensured, no additional carbon source is needed, the aeration amount required by the reaction is greatly reduced, and the energy consumption and the treatment cost are reduced in a multi-dimension manner.
Drawings
The present application may be better understood by referring to the description that is presented in conjunction with the following drawings, in which the same or similar reference numerals are used throughout the several views to indicate the same or similar components. The accompanying drawings, which are included to provide a further illustration of the preferred embodiments of the present application and together with a further illustration of the principles and advantages of the present application, are incorporated in and form a part of the specification. Wherein:
FIG. 1 is a schematic front view of an integrated sewage treatment plant according to an embodiment of the present application;
FIG. 2 is a schematic top view of an integrated wastewater treatment plant according to an embodiment of the present application;
FIG. 3 is a schematic view of the structure of a second support member among the internal support members of the integrated wastewater treatment plant according to the embodiment of the present application;
in the figure: 1. a first vertical cylinder; 2. a second horn; 3. a third vertical cylinder; 4. a first vertical annular partition; 5. a second vertical annular partition; 6. a third horn-shaped partition; 7. a water inlet pipe; 8. an annular overflow plate; 9. a water outlet pipe; 10. a water distribution pipe; 11. diving aeration device; 12. an air duct; 13. a blower; 14. an inner support; 15. a water outlet diversion channel; 16. an outer support;
17. a first flow directing channel; 18. a second flow directing channel; 19. a first connection channel; 20. a second connection channel; 21. the sediment overflows the channel.
It should be understood by those skilled in the art that the same reference numerals refer to the same components or components having the same function, and that all the drawings are merely for convenience of explaining the technical contents of the present application, and the numerals, the positions of the components, the interrelationships among the components, the dimensions of the components and the like adopted in the preferred embodiment do not constitute limitations of the technical solution itself, but extend to the whole field covered by the technical field. Elements, components in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale; for example, the dimensions of some of the elements or components in the figures may be exaggerated relative to other elements or components to help improve understanding of embodiments of the present application.
Detailed Description
Exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made in order to achieve the developer's specific goals, such as compliance with device-and business-related constraints, and that these constraints will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.
It should be noted that, in order to avoid obscuring the present application due to unnecessary details, only device structures and/or processing steps closely related to aspects of the present application are shown in the drawings, and other details not greatly related to the present application are omitted.
The application provides an aerobic-anaerobic strict partition's integrated complete set sewage treatment plant, include:
The main body shell is a hollow cylinder with a sealed bottom formed by sequentially connecting a first vertical cylinder, a second horn-shaped cylinder and a third vertical cylinder from top to bottom, and the second horn-shaped cylinder is arranged in a manner of being wider at the upper part and narrower at the lower part;
set up in a plurality of baffles in the main part shell includes: the first vertical annular partition plate, the second vertical annular partition plate and the third horn-shaped partition plate are sequentially connected up and down and internally form a first diversion channel; the top of the second vertical annular partition plate is sleeved in the first vertical annular partition plate, and a space between the sleeved parts forms a first connecting channel; the third horn-shaped partition plate is arranged in a manner of narrow upper part and wide lower part, and a second connecting channel is formed between the third horn-shaped partition plate and the second horn-shaped cylinder;
a second diversion channel is formed between the first vertical cylinder and the second vertical annular partition plate as well as between the first vertical cylinder and the third horn-shaped partition plate; the first connecting channel and the second connecting channel are respectively communicated with the first diversion channel and the second diversion channel.
It should be noted that, in the present application, "a and/or B" should be interpreted as being any one of the following three parallel cases: a, A is as follows; b, a step of preparing a composite material; a and B. For example, "first support, second support, and/or third support" should be understood to be any of the six cases of "first support", "second support", "third support", "first support and second support", "first support and third support", "second support and third support", and "first support, second support, and third support".
Fig. 1 and 2 show an example structure of an aerobic-anaerobic strictly partitioned integrated sewage treatment plant according to an embodiment of the present application, including:
a body housing comprising: a first vertical cylinder 1, a second trumpet-shaped cylinder 2 and a third vertical cylinder 3; the second horn-shaped cylinder 2 is arranged in a manner of being wider at the upper part and narrower at the lower part, the upper end of the second horn-shaped cylinder is connected with the lower end of the first vertical cylinder 1, and the lower end of the second horn-shaped cylinder is connected with the upper end of the third vertical cylinder 3;
a plurality of baffles, set up in the main part shell includes: a first vertical annular partition 4, a second vertical annular partition 5 and a third horn-shaped partition 6; the top of the second vertical annular partition plate 5 is sleeved in the first vertical annular partition plate 4; the third horn-shaped partition plate 6 is arranged above the second horn-shaped cylinder 2 in a manner of being narrow at the upper part and wide at the lower part, and the upper end of the third horn-shaped partition plate is connected with the lower end of the second vertical annular partition plate 5;
a first diversion channel 17 is formed in the second vertical annular partition plate 5 and the third horn-shaped partition plate 6;
a second diversion channel 18 is formed between the first vertical cylinder 1, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6;
the space of the nesting area between the first vertical annular partition 4 and the second vertical annular partition 5 forms a first connecting channel 19 which communicates the first diversion channel 17 with the second diversion channel 18;
A second connecting channel 20 is formed between the third horn-shaped partition 6 and the second horn-shaped cylinder 2, and is used for communicating the second diversion channel 18 with the first diversion channel 17.
The components and their connection are further described below.
In an embodiment of the application, the main body housing is a sewage treatment site for accommodating sewage in the treatment process. As shown in fig. 1, the main body housing includes: a first vertical cylinder 1, a second trumpet-shaped cylinder 2 and a third vertical cylinder 3; wherein, the first vertical cylinder 1 forms the upper part of the main body shell, and the caliber of the first vertical cylinder is larger; the third vertical cylinder 3 forms the lower part of the main body shell, and has smaller caliber; the second horn-shaped cylinder 2 forms the middle part of the main body shell and is arranged in a manner of being wider at the upper part and narrower at the lower part, namely, the upper caliber is larger than the lower caliber, the upper end of the second horn-shaped cylinder is equivalent to and connected with the lower port diameter of the first vertical cylinder 1, and the lower end of the second horn-shaped cylinder is equivalent to and connected with the upper port diameter of the third vertical cylinder 3; in this way, the first vertical cylinder 1, the second horn-shaped cylinder 2 and the third vertical cylinder 3 are enclosed to form a main body shell with a closed bottom and a hollow inside. The arrangement of the first vertical cylinder 1, the second horn-shaped cylinder 2 and the third vertical cylinder 3, the caliber of the third vertical cylinder 3 is smaller than that of the first vertical cylinder 1, the occupied area of the integrated complete device can be further reduced, and the obvious limit of the first diversion channel 17 and the second diversion channel 18 in the main body shell can be formed.
In general, the first vertical cylinder 1, the second trumpet-shaped cylinder 2, and the third vertical cylinder 3 may all be circular in cross section, in other words, the first vertical cylinder 1, the second trumpet-shaped cylinder 2, and the third vertical cylinder 3 may all be cylinders, but the present application is not limited thereto, and other cross-sectional shapes may be adopted under appropriate conditions.
In general, the first vertical cylinder 1, the second horn cylinder 2 and the third vertical cylinder 3 can be made of stainless steel, carbon steel or other materials, have the advantages of corrosion resistance, wear resistance, pressure resistance, high temperature resistance and the like, and can meet the requirements of sewage treatment. The manufacturing mode can be, for example, curl welding and forming, the first vertical cylinder 1, the second horn-shaped cylinder 2 and the third vertical cylinder 3 are curled by a complete stainless steel plate through machinery respectively, two ends of the curled steel plate are welded, the structural strength and the tightness of the cylinder are guaranteed, and finally the first vertical cylinder 1, the second horn-shaped cylinder 2 and the third vertical cylinder 3 are welded into a whole one by one.
In the embodiment of the application, as shown in fig. 1, an inner space of a main body casing is provided with a plurality of partitions, including: a first vertical annular partition 4, a second vertical annular partition 5 and a third horn-shaped partition 6. Wherein, the upper end of the inside of the main body shell is provided with a first vertical annular partition plate 4 formed by enclosing vertical plates; a second vertical annular partition plate 5 formed by enclosing vertical plates is arranged below the first vertical annular partition plate 4; the upper end of the second vertical annular partition 5 is fitted into the lower end of the first vertical annular partition 4, the two are not in direct contact, and the top of the second vertical annular partition 5 is higher than the bottom of the first vertical annular partition 4, so that an important sewage treatment passage (i.e., a first connection passage 19, which will be described in detail later) will be formed in the region where the upper end of the second vertical annular partition 5 is fitted with the lower end of the first vertical annular partition 4. The lower end of the second vertical annular partition plate 5 is connected with a third horn-shaped partition plate 6 formed by enclosing plates; the third flared baffle 6 has a smaller diameter and a larger diameter, and the lower end thereof is located above the second flared tube 2, so that a space between the lower end of the third flared baffle 6 and the inner surface of the second flared tube 2 forms another important sewage treatment channel (i.e., a second connection channel 20, which will be described in detail later). It can be seen that the caliber of the first vertical annular partition plate 4 is larger than that of the second vertical annular partition plate 5, the caliber of the second vertical annular partition plate 5 is equivalent to the upper port diameter of the third horn-shaped partition plate 6, and the lower port diameter of the third horn-shaped partition plate 6 is smaller than the upper port diameter of the second horn-shaped cylinder 2 of the main body shell.
In general, the first vertical annular partition plate 4, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 may be made of stainless steel or carbon steel, and the first vertical annular partition plate 4, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 may be respectively curled by a complete stainless steel plate through machinery, two ends of the curled steel plate into a cylindrical shape are welded, and the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 are connected together through welding. The support piece is arranged in the device, and the first vertical annular partition plate 4, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 can be installed and fixed in a welding mode.
In the embodiment of the present application, as shown in fig. 1, a hollow channel, namely a first diversion channel 17, is formed by enclosing a second vertical annular partition plate 5 and a third horn-shaped partition plate 6, which are positioned inside the main body shell; the first vertical cylinder 1 of the main body shell, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 form a second diversion channel 18 together.
In the embodiment of the present application, as shown in fig. 1, a first connecting channel 19 is formed in the nesting area between the first vertical annular partition plate 4 and the second vertical annular partition plate 5 inside the main body casing, and the channel can realize the communication between the first diversion channel 17 and the second diversion channel 18 in the upper area inside the integrated sewage treatment complete device; a second connection channel 20 is formed between the third horn-shaped partition 6 in the main body casing and the second horn-shaped cylinder 2 of the main body casing, and the channel can realize communication between the second diversion channel 18 and the first diversion channel 17 in the lower area in the integrated sewage treatment complete equipment. The water flow passing through the second connecting channel 20 will downwards along the inner wall of the second trumpet-shaped barrel 2, and the connecting angle formed by the second diversion channel 18 and the second connecting channel 20 is large, so that the water flow can flow from the second diversion channel 18 to the first diversion channel 17 through the second connecting channel 20, and natural and smooth water flow can be realized.
Further, the caliber of the second vertical annular partition plate 5 is equivalent to (i.e. basically equal to) that of the third vertical cylinder 3, so that the first diversion channel 17 is penetrated up and down, and the fluid state in the area of the first diversion channel 17 inside the main body shell can be stabilized. After being ejected downwards in an inclined way through the diving aeration device 11, the gas-liquid two-phase flow is vertically lifted along the inner wall of the third vertical cylinder 3 after bottoming at the bottom of the third vertical cylinder 3 and then enters the second vertical annular partition plate 5, the first flow guide channel 17 is communicated up and down, so that the stability of the flow state of the gas-liquid two-phase flow in the first flow guide channel 17 can be ensured, the gas in the first flow guide channel can be better prevented from overflowing into the second flow guide channel 18, and the partition of an aerobic area and an anaerobic area in the device can be better ensured.
Further, in the embodiment of the present application, as shown in fig. 1, a sediment overflow channel 21 is formed between the first vertical annular partition plate 4 and the first vertical cylinder 1, and an overflow part is provided at the top of the sediment overflow channel 21; obviously, the sediment outflow channel 21 is higher than the first and second diversion channels 17 and 18. Illustratively, the overflow part can be an annular overflow plate 8 formed by enclosing plates, an overflow weir is arranged on the annular overflow plate 8, clean water overflowed from the sedimentation overflow channel 21 overflows through the overflow weir, so that uniform overflow of the clean water can be realized, and the quality of effluent water is improved; the annular overflow plate 8 is connected with the inner wall of the first vertical cylinder 1 of the main body shell to form a horizontal water outlet guide channel 15, the bottom of the water outlet guide channel 15 is provided with a hole and is connected with the water outlet pipe 9, and the treated clean water flows out through the water outlet pipe 9.
In the embodiment of the present application, as shown in fig. 1, the integrated sewage treatment plant further includes an external support 16 for stably and fixedly supporting the integrated sewage treatment plant at an installation site; the external support 16 may be a plurality of support legs that connect the main body housing to the installation site (e.g., the ground), may be a support frame, or may even be other structures, as is not limited in this application.
In the embodiment of the present application, as shown in fig. 1, the integrated sewage treatment plant further comprises an internal support 14 for fixing and supporting the first vertical annular partition plate 4, the second vertical annular partition plate 5 and/or the third horn-shaped partition plate 6 on the main body casing. Specifically, the inner support 14 includes a first support, a second support, and/or a third support. The first supporting piece is used for fixing and supporting the first vertical annular partition plate 4 and the second vertical annular partition plate 5 on the inner wall of the first vertical cylinder 1. The second support is used for fixing and supporting the lower part of the second vertical annular partition plate 5 on the inner wall of the first vertical cylinder 1. The third supporting piece is used for fixing and supporting the third horn-shaped partition plate 6 on the first vertical cylinder 1 and/or the second horn-shaped cylinder 2; for example, the edge of the third horn-shaped partition plate 6 may be partially connected to the inner surface of the second horn-shaped cylinder 2 in a bus direction (the gap between the lower end of the third horn-shaped partition plate 6 and the inner surface of the second horn-shaped cylinder 2 is not completely closed); it is also possible that the edge of the third horn-shaped partition 6 is connected to the inner surface of the first vertical cylinder 1 in a partially extending manner in the horizontal direction. In particular practice, the internal support 14 may be a groined support frame, the schematic structure of which is shown in fig. 3.
In the embodiment of the application, the integrated sewage treatment complete device further comprises a water inlet and distribution device, wherein a water distribution port of the integrated sewage treatment complete device is arranged on the outer side of the lower part of the second vertical annular partition plate 5, in other words, a ventilation aeration area is positioned at the bottom of the first diversion channel 17. The water inlet and distribution device comprises a water inlet pipe 7 and a water distribution pipe 10, wherein the water distribution pipe 10 is an annular water pipe and sleeved on the outer side of the lower part of the second vertical annular partition plate 5, and a plurality of water distribution openings are formed in the water distribution pipe 10; one end of the water inlet pipe 7 is communicated with the water distribution pipe 10, and the other end is connected with the water inlet. In general, a plurality of water distribution ports are arranged on the outer side of the water distribution pipe 10, i.e. the side not close to the outer wall of the second vertical annular partition plate 5, and are generally and uniformly distributed along the circumferential direction (but not strictly required), and the opening direction of the water distribution ports can be along the radial direction or deviate from the radial direction by a certain angle so as to form a rotational flow, thereby improving the mass transfer effect. When the device works, sewage enters the device through the water inlet pipe 7 and is distributed through the water distribution pipe 10, so that the water inlet and distribution are uniform, the rapid uniform mixing of water flow in the device is facilitated, and the treatment efficiency is improved. The area where the water distribution pipe 10 is positioned is an anaerobic area, and a carbon source provided by sewage is immediately utilized by denitrification reaction during water inflow, so that the mass transfer efficiency in a reaction system is greatly improved.
In the embodiment of the application, as shown in fig. 1, the integrated sewage treatment complete device further comprises a submerged aeration device 11, which is arranged at the bottom of the third vertical cylinder 3 and is connected with an external fan 13 through an air pipe 12 for crushing air, stirring and pushing fluid circulation. Obviously, the submerged aeration device 11 is positioned below the first diversion channel 17, and is used for aerating sewage flowing from the second diversion channel 18 (anaerobic area) to the first diversion channel 17 (aerobic area) through the second connecting channel 20, and also is used for providing power for the upward flow of the sewage in the first diversion channel 17. The submerged aerator 11 has a strong stirring effect and has two main functions: firstly, air from an air pipe is rapidly crushed, so that the oxygen mass transfer rate between the air and water is increased; secondly, the device can play a role in water body plug flow, and ensures the speed and flow state of fluid circulation in the sewage treatment device. The submersible aerator 11 may be commercially available, for example, a model LFPQ-0.37B submersible aerator from Chongqing morning song water treatment facilities limited.
Specifically, the air pipe 12 is connected with the turbulence chamber of the submerged aerator 11, the fan 13 guides external air into the submerged aerator 11 through the air pipe 12, when the submerged aerator 11 operates, impellers rotating at high speed in the submerged aerator 11 form a negative pressure area in a turbulence area, air in the air pipe 12 is sucked into the turbulence chamber, sucked air is strongly sheared, crushed and emulsified by the impellers rotating at high speed, the diameters of bubbles are rapidly reduced, partial oxygen molecules rapidly diffuse from gas phase to liquid phase to form gas-liquid two-phase flow, the gas-liquid two-phase flow passes through a diversion opening (the direction of the diversion opening is directed to the periphery of the bottom of the third vertical cylinder 3) of the submerged aerator 11, the gas-liquid two-phase flow vertically rises along the inner wall of the third vertical cylinder 3 at the bottom of the third vertical cylinder 3, enters the first diversion channel 17, oxygen is further dissolved into a water body in the process, most of small bubbles and air are blocked in the first diversion channel 17 by the third horn-shaped partition 6 inside the main body casing, and the first diversion channel 17 forms an aerobic area. When the gas-liquid two-phase flow vertically rises to the top of the first diversion channel 17, the rest air overflows the water body, the liquid flows from inside to outside in a turnover way at the top of the first diversion channel 17, the water flows to the second diversion channel 18 through the first connection channel 19, and no external air enters the second diversion channel 18, so that the anaerobic zone is formed.
When the device is operated, activated sludge, biological film and the like are added into the treatment system, circulation is formed in the sewage treatment device through the diving aeration device 11 and the fan 13, the activated sludge, the biological film and the like flow along with the circulation of the water body, so that the biochemical reaction in the sewage treatment device is more sufficient, and the sewage treatment efficiency is greatly improved. Meanwhile, by utilizing the internal structure of the integrated sewage treatment device provided by the application, a distinct aerobic area and an anaerobic area are formed in a sewage treatment system, and suitable living conditions are provided for microorganisms in the sewage treatment system, and as substances are fully and uniformly mixed, the aerobic microorganisms and the anaerobic microorganisms are uniformly distributed in a reaction system, namely, the aerobic microorganisms and the anaerobic microorganisms exist in the aerobic area and the anaerobic area, the microorganisms are always in a circulating state along with the flow of a water body, the aerobic microorganisms react vigorously in the aerobic area, and the anaerobic microorganisms react more vigorously in the anaerobic area, so that the effect that the biochemical reactions of the aerobic area and the anaerobic area occur simultaneously at the same moment can be achieved, and the mass transfer efficiency and the treatment efficiency between the substances in the reaction system or the treatment system are greatly improved; microorganisms and sewage can be kept in a circulating state in the system at any time, the living environment of the microorganisms can be circulated according to the period, the aim of simultaneously keeping the activities of aerobic microorganisms and anaerobic microorganisms can be fulfilled, the sludge utilization efficiency is improved, and the sewage treatment efficiency is greatly improved.
Further, the air inlet quantity of the fan 13 is adjustable, the dissolved oxygen in the aerobic area is controllable, and the sewage can undergo short-range nitrification and denitrification reaction in the device. In the aerobic zone, the short-cut nitrification controls the nitrification reaction to be in the first stage, namely ammonia nitrogen is oxidized into nitrite nitrogen, so that the process of oxidizing nitrite nitrogen into nitrate nitrogen is omitted, nitrite nitrogen accumulated in the aerobic zone enters the anaerobic zone through the first connecting channel 19, nitrite nitrogen is directly converted into nitrogen through the denitrification reaction to escape from the water body, and the process of converting nitrite nitrogen into nitrite nitrogen is omitted. Generally, the short-cut nitrification and denitrification reaction is difficult to control, and the device provided by the application has the characteristic of high integration, and the reactions of aerobic nitrification, anaerobic denitrification and the like in the sewage denitrification process jointly occur in the same system, so that the conversion speed of a nitrogen reaction mode is accelerated; the mud-water mixture in the device is always in a circulation state, the circulation speed is high, the single residence time of nitrogen in an aerobic zone and an anaerobic zone is short, the reaction time of nitrogen in each zone is shortened, the reaction path is shortened, a part of nitrification reaction in the aerobic zone is limited in a short-cut nitrification stage, and then the partial nitrification reaction enters the anaerobic zone to carry out short-cut denitrification; the aerobic zone and the anaerobic zone in the device are obvious, and a large-area conversion transition zone is not present, so that the conversion speed of the nitrogen reaction process is increased, and the short-range nitrification and denitrification reaction can be ensured; the air inflow is further controlled by controlling the running frequency of the fan, so that the content of dissolved oxygen in the device is controlled, and the dissolved oxygen is controlled within a proper range where short-range nitrification and denitrification occur.
Compared with the traditional nitrification and denitrification, the method can save 25% of aeration quantity in the nitrification stage and 40% of carbon source in the denitrification stage, so that external carbon source is not required to be added in the method, and energy consumption and treatment cost are greatly reduced. Meanwhile, in the embodiment, the nitrification and denitrification rates are accelerated, so that the reaction time is greatly shortened, and the sewage treatment efficiency is greatly improved. Compared with the traditional nitrification and denitrification, the nitrification process can reduce the sludge production by 30%, the denitrification process can reduce the sludge production by 50%, the sludge discharge capacity can be greatly reduced, the sludge disposal cost can be further reduced, the sewage treatment cost can be further reduced, meanwhile, the sludge age is shorter, the microorganism concentration in the reaction system can be greatly improved, and the sewage treatment efficiency can be maximized.
Further, the water flows from top to bottom in the second diversion channel 18, and due to the operation of the submerged aerator 11 and the negative pressure area formed by the continuously rising water flow in the first diversion channel 17, the water at the bottom of the second diversion channel 18 enters the submerged aerator 11 through the second connection channel 20, thereby forming complete water circulation and full-time unpowered sludge backflow in the device. The water body circulation and the full-time unpowered sludge return flow only depend on the running of the submersible aeration device 11 and the gravity of the water body, no other external machinery is required to do work, the energy consumption of sewage treatment is further reduced, the full-time full-percentage sludge return flow greatly improves the sludge utilization efficiency, and the sewage treatment efficiency is further improved.
Further, the sediment overflow channel 21 is arranged at the top of the device, the lower part of the sediment overflow channel is connected with the anaerobic area, and impurities, suspended matters and the like in the water body of the sediment overflow channel 21 are naturally settled by gravity due to the fact that the water flow direction of the anaerobic area is downward and no rising gas exists, so that microorganisms are effectively trapped, the sludge concentration is stabilized, the sludge utilization efficiency is improved, the sewage treatment efficiency is further improved, and the sewage treatment cost is reduced. Because the device continuously feeds water, the clear water flows upwards by utilizing the density difference and the gravity difference between the clear water and the sewage, the clear water at the top in the sedimentation overflow channel 21 overflows naturally through the overflow weir, the overflowed water enters the water outlet guide channel 15, and the clear water is discharged out of the device by utilizing gravity through the water outlet pipe 9 on the water outlet guide channel 15.
The above is a preferred configuration option in the present application, and the above components may be other configurations. The above preferred structures can be used alone or in any combination on the premise of not conflicting with each other, and the effect is better when used in combination.
PREFERRED EMBODIMENTS
The integrated complete sewage treatment device with aerobic-anaerobic strict partition of the embodiment comprises:
the main body shell is a hollow cylinder with a sealed bottom formed by sequentially connecting a first vertical cylinder 1, a second horn-shaped cylinder 2 and a third vertical cylinder 3 from top to bottom, and the second horn-shaped cylinder 2 is arranged in a manner of being wider at the top and narrower at the bottom;
A plurality of baffles arranged in the main body shell, including a first vertical annular baffle 4, a second vertical annular baffle 5 and a third horn-shaped baffle 6; the second vertical annular partition plate 5 and the third horn-shaped partition plate 6 are connected up and down in sequence, and a first diversion channel 17 which is penetrated up and down is formed inside the second vertical annular partition plate; the top of the second vertical annular partition plate 5 is sleeved in the first vertical annular partition plate 4, and a first connecting channel 19 is formed in a space between the sleeved parts; the third horn-shaped partition plate 6 is arranged in a manner of being narrow at the upper part and wide at the lower part, and a second connecting channel 20 is formed between the third horn-shaped partition plate and the second horn-shaped cylinder 2; a second diversion channel 18 is formed between the first vertical cylinder 1, the second vertical annular partition plate 5 and the third horn-shaped partition plate 6; the first connecting channel 19 and the second connecting channel 20 are respectively communicated with the first diversion channel 17 and the second diversion channel 18;
the diving aeration device 11 is arranged at the bottom of the third vertical cylinder 3 and is connected with an external fan 13 through an air pipe 12;
the water inlet and distribution device comprises a water inlet pipe 7 and an annular water distribution pipe 10 sleeved on the outer side of the lower part of the second vertical annular partition plate 5, a plurality of water distribution openings are formed in the water distribution pipe 10, one end of the water inlet pipe 7 is communicated with the water distribution pipe 10, and the other end of the water inlet pipe is connected with the water inlet;
further, external support members 16, i.e., a plurality of support legs connecting the main body housing and the installation site, to fixedly support the main body housing; the inner support 14, i.e. the first support, is used for fixing and supporting the first vertical annular partition 4, the second vertical annular partition 5 to the inner wall of the first vertical cylinder 1, and the second support, i.e. the first support, is a "well" shaped structure, see fig. 3, for fixing and supporting the lower part of the second vertical annular partition 5 to the inner wall of the first vertical cylinder 1.
The integral complete sewage treatment device of the embodiment has the overall height of 3300-3500mm, wherein the first vertical cylinder 1 of the main body shell is a cylinder, the vertical height of the first vertical cylinder is 2300-2500mm, and the diameter of the first vertical cylinder is 1900-2000mm; the second horn-shaped cylinder 2 of the main body shell is also a cylinder, the vertical height of the second horn-shaped cylinder is 400-500mm, and the angle formed by the first vertical cylinder 1 and the inner wall of the second horn-shaped cylinder 2 is about 135 degrees; the third vertical cylinder 3 of the main body shell is also a cylinder, the vertical height of the third vertical cylinder is 450-500mm, and the diameter of the third vertical cylinder is about 1000mm; the diving aeration device 11 (model LFPQ-0.37B diving aeration machine provided by Chongqing morning song water treatment equipment limited company) arranged at the bottom of the third vertical cylinder 3 can form strong gas-liquid two-phase ascending gas flow by utilizing the structure of the third vertical cylinder 3 when the diving aeration device runs to jet, thereby being beneficial to forming the circulation inside the device.
The diameter of the second vertical annular partition plate 5 in the main body shell is about 1000mm, the height is about 1500mm, the first diversion channel 17 can be communicated up and down, and the water flow state is natural; the included angle between the third horn-shaped baffle 6 inside the main body shell and the outer wall of the second vertical annular baffle 5 is about 135 degrees, the third horn-shaped baffle 6 is vertical to the surface of the second horn-shaped cylinder 2 of the main body shell, the linear distance (vertical distance) between the tail end of the third horn-shaped baffle 6 and the surface of the second horn-shaped cylinder 2 of the main body shell is about 150mm, namely the vertical height of the second connecting channel 20 is 150mm, the formation of circulation in the device is facilitated, and meanwhile, gas in the first diversion channel 17 is limited in the first diversion channel 17, so that strict partition of an aerobic area and an anaerobic area inside the device is realized.
The vertical height of the nested part area between the second vertical annular partition plate 5 and the first vertical annular partition plate 4 inside the main body shell is about 280mm, the horizontal distance is about 180mm, gas in the first diversion channel 17 can be prevented from flowing into the second diversion channel 18 through the top first connection channel 19, better and stricter anaerobic area and aerobic area partition are realized, meanwhile, water flow in the first connection channel 19 can be effectively prevented from directly rushing into the sedimentation overflow channel 21, the sewage treatment inside the device is more sufficient, and the effluent quality is ensured.
When the integrated complete sewage treatment device with the aerobic-anaerobic strict partition works, sewage enters the device through the water inlet pipe 7, and then water is distributed through the water distribution pipe 10, so that water inflow and water distribution are uniform, water flow in the device is facilitated to be quickly mixed uniformly, the treatment efficiency is improved, and the carbon source provided by the sewage is immediately utilized by denitrification reaction when water is fed because the water distribution pipe 10 is arranged in an anaerobic area, so that the mass transfer efficiency in a reaction system is greatly improved.
The fan 13 introduces external air into the device through the air pipe 12, when the submersible aeration device 11 operates, an impeller rotating at a high speed along with the submersible aeration device forms a negative pressure area in a turbulent flow area, air in the air pipe 12 is sucked into a turbulent flow chamber of the submersible aeration device, the sucked air is strongly sheared, crushed and emulsified by the impeller rotating at the high speed, the diameter of air bubbles is rapidly reduced, partial oxygen molecules are rapidly diffused to a liquid phase from weather to form a gas-liquid two-phase flow, the gas-liquid two-phase flow vertically rises along the inner wall of the third vertical cylinder 3 at the bottom of the third vertical cylinder 3 by touching the bottom of the third vertical cylinder 3 through a diversion port (the direction points to the periphery of the bottom of the third vertical cylinder 3), oxygen is further dissolved into a water body during the entering the first diversion channel 17, most of small air bubbles and air are blocked in the first diversion channel 17 by the third horn-shaped partition 6, and the first diversion channel 17 forms an aerobic area. When the gas-liquid two-phase flow vertically rises to the top of the first diversion channel 17, the rest air overflows the water body, the liquid flows from inside to outside in a turnover way at the top of the first diversion channel 17, the water flows to the second diversion channel 18 through the first connecting channel 19, and no external air enters the second diversion channel 18, so that the anaerobic zone is formed.
Activated sludge, biological film and the like are added into the treatment system, circulation is formed in the sewage treatment system through the submerged aeration device 11 and the fan 13, and the activated sludge, the biological film and the like flow together with the circulation of the water body, so that the biological reaction in the treatment system is more sufficient, and the sewage treatment efficiency is greatly improved. Meanwhile, through the diving aeration device 11 and the fan 13, a clear aerobic area and an anaerobic area are formed in the treatment system by utilizing the internal structure of the sewage treatment integrated complete device with strict aerobic-anaerobic distinction, and a proper living condition is provided for microorganisms in the sewage system; microorganisms and sewage can be kept in a circulating state in a sewage treatment system at any time, the living environment of the microorganisms can be circulated according to the period, the aim of simultaneously keeping the activities of aerobic microorganisms and anaerobic microorganisms can be fulfilled, the sludge utilization efficiency is improved, and the sewage treatment efficiency is greatly improved.
The air inlet of the fan 13 is adjustable, the dissolved oxygen in the aerobic area is controllable, and the sewage can undergo short-range nitrification and denitrification reaction in the device. In the aerobic zone, the short-cut nitrification controls the nitrification reaction to be in the first stage, namely ammonia nitrogen is oxidized into nitrite nitrogen, so that the process of oxidizing nitrite nitrogen into nitrate nitrogen is omitted, nitrite nitrogen accumulated in the aerobic zone enters the anaerobic zone through the first connecting channel 19, nitrite nitrogen is directly converted into nitrogen through the denitrification reaction to escape from the water body, and the process of converting nitrite nitrogen into nitrite nitrogen is omitted. Compared with the traditional nitrification and denitrification, the method can save 25% of aeration quantity in the nitrification stage and 40% of carbon source in the denitrification stage, so that external carbon source is not required to be added in the method, and energy consumption and treatment cost are greatly reduced. Meanwhile, in the embodiment, the nitrification and denitrification rates are accelerated, so that the reaction time is greatly shortened, and the sewage treatment efficiency is greatly improved. Compared with the traditional nitrification and denitrification, the nitrification process can reduce the sludge production by 30%, the denitrification process can reduce the sludge production by 50%, the sludge discharge capacity can be greatly reduced, the sludge disposal cost can be further reduced, the sewage treatment cost can be further reduced, meanwhile, the sludge age is shorter, the microorganism concentration in the reaction system can be greatly improved, and the sewage treatment efficiency can be maximized.
The water flows from top to bottom in the second diversion channel 18, and the water at the bottom of the second diversion channel 18 enters the negative pressure area of the aeration device through the second connecting channel 20 due to the operation of the submerged aeration device 11 and the negative pressure area formed by continuously rising water flow in the first diversion channel 17, so that complete water circulation and full-time unpowered sludge backflow are formed. Because the water body circulation and the full-time unpowered sludge return in the device only depend on the running of the submerged aeration device and the gravity of the water body, no other external machinery is required to do work, the energy consumption of sewage treatment is further reduced, the full-time full-percentage sludge return greatly improves the sludge utilization efficiency, and the sewage treatment efficiency is further improved.
The sediment overflow channel 21 is arranged at the top of the device, the lower part of the sediment overflow channel is connected with the anaerobic area, and impurities, suspended matters and the like in the water body of the sediment overflow channel 21 are naturally settled by gravity due to the fact that the water flow direction of the anaerobic area is downward and no rising gas exists, so that microorganisms are effectively trapped, the sludge concentration is stabilized, the sludge utilization efficiency is improved, the sewage treatment efficiency is further improved, and the sewage treatment cost is reduced. Because the device continuously feeds water, the clear water flows upwards by utilizing the density difference and the gravity difference between the clear water and the sewage, the clear water at the top of the sedimentation overflow channel 21 naturally overflows through the overflow weir, the overflowed water enters the water outlet guide channel 15 and is discharged out of the device by utilizing the gravity through the water outlet pipe 9 on the water outlet guide channel 15.
The pollutant removal efficiency after the device of this example was stably operated is shown in table 1 below.
Table 1 pollutant removal effects after stable operation of the integrated wastewater treatment plant of the examples
The device of the embodiment shows stable pollutant removal performance in the later stage after operation and debugging for 43 days, wherein the ammonia nitrogen water content is less than 5mg/L, the total nitrogen water content is less than 10mg/L, the COD water content is less than 15mg/L, no external carbon source is required to be added in the operation process, and the treatment cost is saved. The volumetric load of the device was about 5m 3 /(m 3 D), the treatment efficiency is high. Taking sewage with ammonia nitrogen content of 25mg/L and COD content of 150mg/L as an example, and treating one ton of such sewage by the traditional process as an example, the air quantity required to be introduced is about 10m 3 In the actual operation of the device of this embodiment, the air volume is about 7 m 3 Per ton, approximately 30% of aeration is saved; the theoretical sludge yield of the traditional process is about 0.5kg, and the actual sludge yield of the device of the embodiment is about 0.15-0.2kg, so that the sludge yield is reduced by more than 50%.
In summary, the aerobic-anaerobic strictly partitioned integrated complete sewage treatment device provided by the application has the following advantages:
1. the device has simple structure and convenient processing and assembly; the device does not need any other structures such as a return pipe except the water inlet pipe 7 and the air pipe 12; the device has extremely high integration degree, is convenient to hoist, and can adapt to the sewage treatment application environment of multiple scenes; the functional partition of the reaction system is clear, the space utilization rate is high, and the maximum improvement of the sewage treatment efficiency is realized.
2. The energy consumption equipment is only the fan 13 and the diving aeration device 11, and no other energy consumption equipment such as a reflux pump is needed, so that the energy consumption of sewage treatment is greatly reduced. The integral flow direction of sewage treatment in the integrated device is vertical, the occupied area is small, the space utilization efficiency is high, the circulation of water in the device can be realized only by depending on the diving aeration device and the self gravity of the water body, and the energy consumption is greatly reduced.
3. The activated sludge and the biomembrane in the reaction system are fully and uniformly mixed with the sewage, and flow along with the water body, so that the biological reaction in the treatment system can be more sufficient; the device can achieve the effect that biochemical reactions of an aerobic area and an anaerobic area occur simultaneously at the same time, and greatly improves the mass transfer efficiency and the treatment efficiency between substances in a reaction system; microorganisms and sewage can be kept in a circulating state in the sewage treatment system all the time, the living environment of the microorganisms can be circulated according to the period, the aim of simultaneously keeping the activities of aerobic microorganisms and anaerobic microorganisms can be fulfilled, the sludge utilization efficiency is improved, the sludge yield is reduced, and the sewage treatment efficiency is greatly improved.
4. The air inflow is controllable, meanwhile, the strict partition of aerobic and anaerobic in the reaction system can be realized, the short-cut nitrification and denitrification reaction in the device is realized, the treatment efficiency and the effluent quality are ensured, the conversion path of nitrogen element is shortened, no additional carbon source is needed, the aeration amount required by the reaction is greatly reduced, and the energy consumption and the treatment cost are reduced in a multi-dimensional manner.
Finally, it is further noted that in this application, relational terms such as left and right, first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the application has been disclosed in the context of specific embodiments thereof, it will be appreciated that those skilled in the art may devise various modifications, adaptations, or equivalents of the application within the spirit and scope of the appended claims. Such modifications, improvements, or equivalents are intended to be included within the scope of the present application.
Claims (10)
1. An aerobic-anaerobic strictly partitioned integrated complete sewage treatment device, comprising:
the main body shell is a hollow cylinder with a sealed bottom formed by sequentially connecting a first vertical cylinder, a second horn-shaped cylinder and a third vertical cylinder from top to bottom, and the second horn-shaped cylinder is arranged in a manner of being wider at the upper part and narrower at the lower part;
set up in a plurality of baffles in the main part shell includes: the first vertical annular partition plate, the second vertical annular partition plate and the third horn-shaped partition plate are sequentially connected up and down and internally form a first diversion channel; the top of the second vertical annular partition plate is sleeved in the first vertical annular partition plate, and a space between the sleeved parts forms a first connecting channel; the third horn-shaped partition plate is arranged in a manner of narrow upper part and wide lower part, and a second connecting channel is formed between the third horn-shaped partition plate and the second horn-shaped cylinder;
a second diversion channel is formed between the first vertical cylinder and the second vertical annular partition plate as well as between the first vertical cylinder and the third horn-shaped partition plate; the first connecting channel and the second connecting channel are respectively communicated with the first diversion channel and the second diversion channel.
2. The integrated wastewater treatment plant of claim 1, wherein the second vertical annular partition is comparable to the third vertical cylinder in caliber.
3. The integrated wastewater treatment plant of claim 1, wherein a sediment overflow channel is formed between the first vertical annular partition and the first vertical cylinder, the sediment overflow channel being higher than the first and second diversion channels.
4. The integrated wastewater treatment plant of claim 1, further comprising: an external support for stably and fixedly supporting the integrated sewage treatment plant in an installation place; and/or the number of the groups of groups,
and the internal supporting piece is used for fixing and supporting the first vertical annular partition plate, the second vertical annular partition plate and/or the third horn-shaped partition plate on the main body shell.
5. The integrated wastewater treatment plant of claim 1, further comprising: and the water distribution port of the water inlet and distribution device is arranged at the outer side of the lower part of the second vertical annular partition plate.
6. The integrated wastewater treatment device set forth in claim 5, wherein the water inlet and distribution device comprises an annular water distribution pipe sleeved on the outer side of the lower portion of the second vertical annular partition plate, and a plurality of water distribution ports are formed in the water distribution pipe.
7. The integrated wastewater treatment plant of claim 5 or 6, further comprising: the diving aeration device is arranged at the bottom of the third vertical cylinder and is connected with an external fan through an air pipe.
8. The integrated wastewater treatment plant of claim 7 wherein the flow of water from the submerged aerator is directed diagonally downward toward the bottom perimeter of the third vertical cylinder.
9. The integrated wastewater treatment plant of any one of claims 1-6, 8, wherein the vertical height of the overlapping area of the second vertical annular partition and the first vertical annular partition is 280mm and the horizontal distance is 180mm.
10. The integrated wastewater treatment plant of any one of claims 1-6, 8, wherein the first vertical cylinder and the second trumpet cylinder have an included angle of 135 degrees; the included angle between the second vertical annular partition plate and the third horn-shaped partition plate is 135 degrees; the vertical distance from the tail end of the third horn-shaped baffle plate to the surface of the second horn-shaped cylinder is 150mm.
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