CN111777178A - Vertical oxidation ditch micro-power water treatment system - Google Patents
Vertical oxidation ditch micro-power water treatment system Download PDFInfo
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- CN111777178A CN111777178A CN202010454201.4A CN202010454201A CN111777178A CN 111777178 A CN111777178 A CN 111777178A CN 202010454201 A CN202010454201 A CN 202010454201A CN 111777178 A CN111777178 A CN 111777178A
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- oxidation ditch
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention belongs to the technical field of environmental protection, and particularly relates to a vertical oxidation ditch micro-power water treatment system, which can realize simultaneous aeration cycle treatment and standing precipitation by arranging an oxidation ditch area and a sedimentation tank area, thereby effectively improving the sewage treatment efficiency; the invention provides an oxidation ditch circulating power which is derived from the residual energy of gas after aeration, power equipment required by circulating is omitted, and the oxidation ditch circulating power has the advantages of energy conservation, environmental protection, small space occupation and compact structure.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a vertical oxidation ditch micro-power water treatment system.
Background
The oxidation ditch is an activated sludge treatment system, and an aeration tank of the oxidation ditch is in a closed ditch shape, so the oxidation ditch is different from the traditional activated sludge method in the hydraulic flow state, and is a circulating flow aeration ditch which is connected end to end and is also called a circulating aeration tank. The oxidation ditch has various forms, but is connected end to end in a plane view. Such as carrousel oxidation ditch and oberi oxidation ditch, the planar oxidation ditch has the advantage that the existing propulsion equipment can ensure the smooth running of circulation. At larger scale sewage stations, the planar dimensions are much larger than the water depth.
At present, most of oxidation ditches are planar oxidation ditches, and in order to reduce occupied area, the patent document of the publication number CN208700686U in the prior art provides a three-dimensional circulating oxidation ditch, which is mainly characterized in that a flow separation baffle is arranged in a tank body and divides an inner cavity of the tank body into a cavity with an upper layer and a lower layer which are communicated with each other. The tank body is externally provided with a water inlet pipe, a water outlet pipe and a sludge discharge pipe which are communicated with the tank body, an upper-layer anoxic MBBR area, an upper-layer aerobic MBBR area and upper-layer aeration plug-flow equipment are arranged in an upper-layer cavity in the tank body, and a lower-layer anoxic MBBR area, a lower-layer aerobic MBR area and lower-layer aeration plug-flow equipment are arranged in a lower-layer cavity in the tank body. The anoxic MBBR area and the aerobic MBBR area are filled with fillers. The technical scheme has the defects that the main flow partition plate arranged in the middle is difficult to install and maintain, the water inlet pipe is positioned on the upper layer, when the water flows, the upper layer and the lower layer only need to be provided with aeration plug flow equipment, and the energy consumption is large when sewage treatment is carried out; in addition, the aeration treatment and the sedimentation sludge discharge of the sewage in the device are in the same space, and the problem of low efficiency exists in the treatment process.
Therefore, it is necessary to provide an energy-saving, environment-friendly and rational-structure water treatment system while saving the occupied space.
Disclosure of Invention
The invention provides a vertical oxidation ditch micro-power water treatment system, which aims to solve the problems of large occupied area and large energy consumption of an oxidation ditch in the prior art.
The vertical oxidation ditch micro-power water treatment system adopts the following technical scheme:
the utility model provides a vertical oxidation ditch micropower water treatment system, includes the cell body, including oxidation ditch region, sedimentation tank region in the cell body, be provided with the baffle that extends along upper and lower direction in the oxidation ditch region, the baffle will the oxidation ditch region inter-domain separates into communicating aerobic zone in bottom and anoxic zone, aerobic zone bottom is provided with the aeration pipe, be provided with the inlet tube in the anoxic zone, the inlet tube can to let in sewage in the anoxic zone, liquid in the aerobic zone partly overflows the baffle upper end and merges into anoxic zone mesocycle, partly deposit row's mud in flowing into the sedimentation tank through the pipeline under the potential energy drive that the aeration pipe let in oxygen.
Preferably, the partition plate has an annular structure that divides the oxidation trench region into an inner region and an outer region, the inner region is an anoxic region, and the outer region is an aerobic region.
Preferably, the upper end of the aerobic zone is provided with a gas collecting cover for forming a necking structure.
Preferably, the gas collecting hood comprises a conical part with the size gradually reduced from bottom to top, and a vertical part which is arranged at the upper end of the conical part and extends upwards.
Preferably, the oxidation ditch area is provided with a sand setting area which extends downwards and is used for collecting sand in sewage below the anoxic area.
Preferably, the water treatment system includes a stripping assembly for venting sand in the grit zone.
Preferably, a half pipe used for being communicated with the sedimentation tank is arranged on the outer side wall of the aerobic zone.
Preferably, the oxidation ditch area is arranged at the middle position of the sedimentation basin area.
Preferably, be equipped with in the anoxic zone along the upper and lower direction extension, be used for installing corresponding tuber pipe and sand discharge pipe's center tube, the center tube lateral wall has the apopore that is used for with the anoxic zone intercommunication.
Preferably, the bottom of the sedimentation tank area is a cone-shaped structure with the size gradually reduced from top to bottom and convenient for collecting sediment.
The invention has the beneficial effects that:
according to the vertical oxidation ditch micro-power water treatment system, the oxidation ditch area and the sedimentation tank area are arranged, so that aeration circulation treatment and standing sedimentation can be carried out simultaneously, and the sewage treatment efficiency is effectively improved; the invention provides an oxidation ditch circulating power which is derived from the residual energy of gas after aeration, power equipment required by circulating is omitted, and the oxidation ditch circulating power has the advantages of energy conservation, environmental protection, small space occupation and compact structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a vertical oxidation ditch micropower water treatment system of the present invention;
FIG. 2 is a schematic view of the arrangement of half-tubes according to the present invention;
reference numerals:
1. the device comprises a tank body, a sedimentation tank area, a partition plate, a 4 aerobic area, a 5 anoxic area, a 6 aeration pipe, a 7 water inlet pipe, 8 supporting legs, 9 gas collecting covers, a 10 sand settling area, a 11 comprehensive management box, a 12 fan, a 13 sand discharge pipe, a 14 aeration regulating valve, a 15 air stripping air quantity regulating valve, a 16 half pipe, a 17 central pipe, a 18 central ladder, a 19 sludge discharge pipe, a 20 sludge settling hopper, a 21 water outlet weir, a 22 water outlet pipe, a 23 water outlet hole and a feeding hole; 24. and (4) air stripping of an air pipe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms than those herein described and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
An embodiment of a vertical oxidation ditch micropower water treatment system is shown in figures 1 and 2 and comprises a tank body 1, wherein the tank body 1 comprises an oxidation ditch area and a sedimentation tank area 2, a partition plate 3 extending along the vertical direction is arranged in the oxidation ditch area, the partition plate 3 partitions the oxidation ditch area into an aerobic area 4 and an anoxic area 5 which are communicated with each other at the bottom, an aeration pipe 6 is arranged at the bottom of the aerobic area 4, a water inlet pipe 7 is arranged in the anoxic area 5, sewage can be introduced into the anoxic area 5 through the water inlet pipe 7, and liquid in the aerobic area 4 is driven by potential energy of oxygen introduced through the aeration pipe 6 to partially overflow the upper end of the partition plate 3 and flow into the anoxic area 5 for circulation, and a part of the liquid flows into the sedimentation tank through a pipeline for sedimentation and sludge discharge. By arranging the oxidation ditch area and the sedimentation tank area 2, the aeration circulation treatment and the standing sedimentation can be simultaneously carried out, and the sewage treatment efficiency is effectively improved; the invention adopts a partition board 3 extending along the up-down direction to divide the bottom of the oxidation ditch area into an aerobic area 4 and an anoxic area 5 which are communicated, wherein the bottom of the aerobic area 4 is provided with an aeration pipe 6 for providing oxygen, when a water inlet pipe 7 and the aeration pipe 6 work, the liquid in the aerobic area 4 is driven by the potential energy of the oxygen to flow upwards and flow into the anoxic area 5 to circulate by crossing the upper end of the partition board 3, thereby forming the oxidation ditch circulating on a vertical plane.
The partition plate 3 is an annular structure which divides the oxidation ditch area into an inner area and an outer area, wherein the inner area is an anoxic area 5, and the outer area is an aerobic area 4. In this embodiment, the partition 3 is mounted in the oxidation ditch region by means of legs 8.
The upper end of the aerobic zone 4 is provided with a gas collecting cover 9 for forming a necking structure. Specifically, the gas collection hood 9 includes a tapered portion that gradually decreases in size from the bottom to the top, and a vertical portion that is provided at the upper end of the tapered portion and extends upward.
Because solid sand exists in the sewage to be treated, in order to improve the sewage purification efficiency, a sand setting zone 10 which extends downwards and is used for collecting the sand in the sewage is arranged below the anoxic zone 5 in the oxidation ditch area, specifically, the water outlet of the water inlet pipe 7 is positioned in the sand setting zone 10, the bottom of the anoxic zone 5 is lower than the aerobic zone 4, and the bottom of the whole oxidation ditch area is step-shaped.
The water treatment system includes a stripping assembly for discharging sand in the grit zone 10. In this embodiment, the vertical oxidation ditch micropower water treatment system provided by the invention further comprises an integrated management box 11, wherein a fan 12 and a power supply device are arranged in the integrated management box 11, the fan 12 is communicated with the aeration pipe 6 on one hand and used for providing oxygen, and is communicated with a sand discharge pipe 13 (namely an air stripping component) on the other hand and used for discharging sand in the sand settling zone 10, and in order to make the sewage treatment system more stable, an aeration regulating valve 14 and an air stripping air quantity regulating valve 15 for controlling air inlet quantity are further arranged on corresponding pipelines; the comprehensive management box 11 is arranged at the middle position of the upper part of the tank body 1.
The outer side wall of the aerobic zone 4 is provided with a half pipe 16 which is used for being communicated with the sedimentation tank, specifically, the half pipe 16 is L-shaped. The oxidation ditch area is arranged in the middle of the sedimentation tank area 2, in the embodiment, the liquid level of the aerobic zone 4 at the boundary wall of the oxidation ditch area and the sedimentation zone is 0.5m, the bottom of the aerobic zone is completely combined with the bottom of the tank body 1, and specifically, the half pipes 16 are arranged at the outer side of the oxidation ditch area at intervals.
Be equipped with in the anoxic zone 5 along the upper and lower direction extend, be used for installing corresponding tuber pipe and sand discharge pipe 13's center tube 17, in this embodiment, still be equipped with the cat ladder 18 that is used for the maintenance in the center tube 17, intake pipe 7, sand discharge pipe 13 when the installation laminating on the inner wall of center tube 17, the center tube 17 lateral wall has the apopore that is used for with anoxic zone 5 intercommunication.
The bottom of the sedimentation tank area 2 is a sludge settling hopper 20 which has a cone-shaped structure, the size of which is gradually reduced from top to bottom and is convenient for collecting sediments. The bottom of the sedimentation tank is connected with a sludge discharge pipe 19.
An effluent weir 21 is arranged around the outer wall of the tank body 1 in the embodiment, and the effluent weir 21 is communicated with an effluent pipe 22. The upper end of the gas collecting cover 9 is 10cm higher than the clapboard 3 (namely the anoxic zone 5), and the upper end of the tank body 1 is also provided with an adding hole 23 for initial inspection or disinfectant adding.
It should be noted that in other embodiments of the present invention, the partition board may be made of plastic or steel, such as PE, glass fiber reinforced plastic; the tank body can adopt a steel structure or concrete; the sedimentation area can be provided with an inclined pipe to improve the sedimentation efficiency; the biochemical reaction area can be added with filler to be used as an MBBR oxidation ditch reaction tank; the top of the aerobic zone is provided with an annular arresting net to prevent the filler from entering the sedimentation zone.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a vertical oxidation ditch micropower water treatment system, includes the cell body, its characterized in that: including oxidation ditch region, sedimentation tank region in the cell body, be provided with the baffle that extends along upper and lower direction in the oxidation ditch region, the baffle will the oxidation ditch region inter-area separates into communicating aerobic zone in bottom and anoxic zone, aerobic zone bottom is provided with the aeration pipe, be provided with the inlet tube in the anoxic zone, the inlet tube can to let in sewage in the anoxic zone, liquid in the aerobic zone drives down partly to spill over the baffle upper end and remit anoxic zone mesocycle, partly through the pipeline inflow sedimentation mud drainage in the sedimentation tank at the potential energy that the aeration pipe lets in oxygen.
2. The vertical oxidation ditch micropower water treatment system of claim 1, wherein: the baffle is an annular structure which divides the oxidation ditch area into an inner area and an outer area, wherein the inner area is an anoxic area, and the outer area is an aerobic area.
3. The vertical oxidation ditch micropower water treatment system of claim 2, wherein: and a gas collecting cover for forming a necking structure is arranged at the upper end of the aerobic zone.
4. The vertical oxidation ditch micropower water treatment system of claim 3, wherein: the gas collecting cover comprises a conical part with the size gradually reduced from bottom to top and a vertical part which is arranged at the upper end of the conical part and extends upwards.
5. The vertical oxidation ditch micropower water treatment system of any one of claims 1 to 4, wherein: and the oxidation ditch area is provided with a sand setting area which extends downwards and is used for collecting sand in the sewage and is arranged below the anoxic area.
6. The vertical oxidation ditch micropower water treatment system of claim 5, wherein: the water treatment system includes a lift assembly for discharging sand in the grit zone.
7. The vertical oxidation ditch micropower water treatment system of claim 6, wherein: and a half pipe communicated with the sedimentation tank is arranged on the outer side wall of the aerobic zone.
8. The vertical oxidation ditch micropower water treatment system of claim 7, wherein: the oxidation ditch area is arranged in the middle of the sedimentation tank area.
9. The vertical oxidation ditch micropower water treatment system of any one of claims 6 to 8, wherein: and a central pipe which extends along the up-down direction and is used for installing a corresponding air pipe and a sand discharge pipe is arranged in the anoxic zone, and a water outlet hole which is communicated with the anoxic zone is formed in the side wall of the central pipe.
10. The vertical oxidation ditch micropower water treatment system of claim 9, wherein: the bottom of the sedimentation tank area is a cone-shaped structure which is gradually reduced in size from top to bottom and is convenient for collecting sediment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010454201.4A CN111777178B (en) | 2020-05-26 | 2020-05-26 | Vertical oxidation ditch micro-power water treatment system |
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| CN202010454201.4A CN111777178B (en) | 2020-05-26 | 2020-05-26 | Vertical oxidation ditch micro-power water treatment system |
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| CN111777178A true CN111777178A (en) | 2020-10-16 |
| CN111777178B CN111777178B (en) | 2022-07-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113896326A (en) * | 2021-12-09 | 2022-01-07 | 清研环境科技股份有限公司 | Sewage treatment reactor and treatment method thereof |
| CN116282530A (en) * | 2023-01-17 | 2023-06-23 | 山东默锐环境产业股份有限公司 | AO-MBBR combined bioreactor |
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| CN111777178B (en) | 2022-07-05 |
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