CN216997853U

CN216997853U - Sewage treatment reactor

Info

Publication number: CN216997853U
Application number: CN202123328954.XU
Authority: CN
Inventors: 刘宫介; 刘瀚星; 孙刚; 钱辰; 汪玉莲; 王文华; 盛佳杰
Original assignee: Shanghai Tongren Environmental Protection Technology Development Co ltd
Current assignee: Shanghai Tongren Environmental Protection Technology Development Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-19
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a sewage treatment reactor, which comprises a treatment tank, wherein an anoxic zone, an aerobic zone II and an aerobic zone III which are formed by a plurality of partition structures in a separating way are arranged in the treatment tank, the anoxic zone is connected with a water inlet, the aerobic zone III is connected with a water outlet, aeration devices are arranged in the aerobic zone I, the aerobic zone II and the aerobic zone III, the aeration devices in the aerobic zone I and the aerobic zone II are arranged at the bottom, the aeration device in the aerobic zone III is arranged at 40-50% of the height of a tank body, a return pipe is arranged at the bottom of the aerobic zone III, the return pipe is communicated to the anoxic zone through a return pump, and fillers are arranged in the aerobic zone II and the aerobic zone III. Has the advantages that: the utility model has the characteristics of better dephosphorization effect of the common activated sludge method and strong load change tolerance capability of the biological contact oxidation method, thereby achieving good treatment effect; meanwhile, a secondary sedimentation tank does not need to be independently arranged, and a flocculating agent feeding device is not needed, so that the construction cost is low, and the operation and maintenance are simple.

Description

Sewage treatment reactor

Technical Field

The utility model relates to the field of sewage treatment, in particular to a sewage treatment reactor.

Background

The existing rural sewage is always characterized by unstable water quality and water quantity, so that the common activated sludge process is not very suitable for rural sewage treatment. The existing rural sewage treatment facilities usually adopt sewage treatment processes with strong load change resistance, such as a biological contact oxidation method, a membrane bioreactor, hereinafter referred to as an MBR method, and the like to treat sewage. However, the biological contact oxidation method has poor capability of removing phosphorus in sewage, and the MBR method has high construction cost and strong operation and maintenance technicality and is not very suitable for partial rural areas. At present, rural sewage treatment facilities need to achieve good treatment effect, low construction cost and simple operation and maintenance. Therefore, there is a need to develop a sewage treatment reactor to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the technical defects and provide a sewage treatment reactor.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a sewage treatment reactor comprises a treatment tank, wherein an anoxic zone, an aerobic first zone, an aerobic second zone and an aerobic third zone which are formed by separating a plurality of partition structures are arranged in the treatment tank, the anoxic zone is connected with a water inlet, the aerobic third zone is connected with a water outlet, aeration devices are arranged in the aerobic first zone, the aerobic second zone and the aerobic third zone, the aeration devices in the aerobic first zone and the aerobic second zone are arranged at the bottom, the aeration device in the aerobic third zone is arranged at 40-50% of the height of a tank body, a return pipe is arranged at the bottom of the aerobic third zone and communicated to the anoxic zone through a return pump, and fillers are arranged in the aerobic second zone and the aerobic third zone.

Further, cut off the structure including baffle and the overflow plate of mutual parallel arrangement, the baffle extends to the treatment tank lower part from top to bottom, the overflow plate upwards extends the setting by the treatment tank bottom.

Furthermore, be equipped with dive agitator in the anoxic zone, dive agitator sets up in the anoxic zone bottom and is close to and cuts off the structure.

Further, the filling material in the aerobic second zone accounts for 40-60% of the volume of the aerobic second zone.

Furthermore, the arrangement amount of the filler in the aerobic three-zone area accounts for 20-40% of the height of the tank body, a funnel-shaped sludge hopper is arranged at the bottom of the aerobic three-zone area, the bottom of the sludge hopper is connected with a return port, and a sludge discharge port is further connected to the return pipe.

Compared with the prior art, the utility model has the advantages that: the method has the characteristics of good phosphorus removal effect of a common activated sludge method and strong load change tolerance capability of a biological contact oxidation method, so that the treatment effect is good; meanwhile, a secondary sedimentation tank does not need to be independently arranged, and a flocculating agent dosing device does not need to be arranged, so that the construction cost is low, and the operation and maintenance are simple.

Drawings

FIG. 1 is a schematic view of a sewage treatment reactor according to the present invention.

As shown in the figure: 1. a water inlet; 2. a water outlet; 3. an anoxic zone; 4. an aerobic first zone; 5. an aerobic second zone; 6. an aerobic zone; 7. a submersible mixer; 8. an aeration device; 9. a filler; 10. a return port; 11. a reflux pump; 12. a sludge discharge port; 13. a sludge hopper; 14. a treatment tank; 15. a baffle plate; 16. an overflow plate.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof are intended to cover non-exclusive inclusions.

A sewage treatment reactor comprises a treatment tank 14, wherein an anoxic zone 3, an aerobic zone 4, an aerobic zone 5 and an aerobic zone 6 which are formed by a plurality of partition structures in a separation mode are arranged in the treatment tank 14, the anoxic zone 3 is connected with a water inlet 1, the aerobic zone 6 is connected with a water outlet 2, aeration devices 8 are arranged in the aerobic zone 4, the aerobic zone 5 and the aerobic zone 6, the aeration devices 8 in the aerobic zone 4 and the aerobic zone 5 are arranged at the bottom, the aeration device 8 of the aerobic zone 6 is arranged at 40-50% of the height of a tank body, a return pipe is arranged at the bottom of the aerobic zone 6 and communicated with the anoxic zone 3 through a return pump 11, and fillers 9 are arranged in the aerobic zone 5 and the aerobic zone 6.

The partition structure comprises a baffle 15 and an overflow plate 16 which are arranged in parallel, wherein the baffle 15 extends to the lower part of the treatment pool 14 from top to bottom, and the overflow plate 16 extends upwards from the bottom of the treatment pool 14. Be equipped with dive agitator 7 in anoxic zone 3, dive agitator 7 sets up in anoxic zone 3 bottom and is close to and cuts off the structure. The arrangement amount of the filler 9 in the aerobic second zone 5 accounts for 40-60% of the volume of the aerobic second zone. The arrangement amount of the filler 9 in the aerobic three-zone 6 accounts for 20-40% of the height of the tank body, the bottom of the aerobic three-zone 6 is provided with a funnel-shaped sludge hopper 13, a return port 10 is positioned at the bottom of the sludge hopper 13, and the return pipe is also connected with a sludge discharge port 12.

The anoxic zone 3 and the aerobic zone 4 carry suspended sludge to play a role of a common activated sludge method, have good phosphorus removal capability, and the aerobic zone 5 and the aerobic zone 6 are provided with fillers 9 to carry biological membranes to play a role of a biological contact oxidation method; in addition, the aerobic three-zone 6 is also provided with a sludge hopper 13 which has the function of a secondary sedimentation tank. When the water with suspended sludge enters the aerobic second zone 5 and the aerobic third zone 6, the suspended sludge contacts with the biomembrane on the filler 9, and polysaccharide secretion generated by the biomembrane can obviously enhance the sedimentation performance of the sludge, so that the sludge can be easily settled to the sludge hopper 13 without adding a flocculating agent like a common activated sludge method, and the phosphorus removal effect is ensured. The treatment tank is divided by a partition structure, the anoxic zone 3, the aerobic zone 4, the aerobic zone 5 and the aerobic zone 6 can be sequentially connected by the partition structure through overflowing effluent, and a directional flowing effect can be formed by setting the height of the overflow plate 16, namely the wastewater flows from the anoxic zone 3 to the aerobic zone 6 in sequence; meanwhile, a secondary sedimentation tank does not need to be independently arranged, and a flocculating agent dosing device does not need to be arranged, so that the construction cost is low, and the operation and maintenance are simple.

The present invention and the embodiments thereof have been described above, and the description is not intended to be limiting, and the embodiments shown in the drawings are only a part of the embodiments of the present invention, not all of the embodiments, and the actual configuration is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.

Claims

1. A sewage treatment reactor comprises a treatment tank (14), and is characterized in that an anoxic zone (3), an aerobic zone (4), an aerobic zone (5) and an aerobic zone (6) which are formed by separating a plurality of partition structures are arranged in the treatment tank (14), the anoxic zone (3) is connected with a water inlet (1), the aerobic zone (6) is connected with a water outlet (2), aeration devices (8) are arranged in the aerobic zone (4), the aerobic zone (5) and the aerobic zone (6), the aeration devices (8) in the aerobic zone (4) and the aerobic zone (5) are arranged at the bottom, the aeration device (8) in the aerobic zone (6) is arranged at 40-50% of the height of a tank body, a return pipe is arranged at the bottom of the aerobic zone (6), the return pipe is communicated to the anoxic zone (3) through a return pump (11), and the aerobic zone (5) and the aerobic zone (6), The aerobic three zones (6) are all provided with fillers (9).

2. The sewage treatment reactor according to claim 1, wherein said partition structure comprises a baffle plate (15) and an overflow plate (16) which are arranged in parallel, said baffle plate (15) extends from top to bottom to the lower portion of said treatment tank (14), and said overflow plate (16) extends from the bottom of said treatment tank (14) to top.

3. A reactor for sewage treatment according to claim 2 wherein said anoxic zone (3) is provided with a submerged agitator (7), said submerged agitator (7) being arranged at the bottom of the anoxic zone (3) and being adjacent to the partition structure.

4. A reactor for wastewater treatment according to claim 2, characterized in that the packing (9) in the aerobic zone (5) is arranged in an amount of 40-60% of its volume.

5. The sewage treatment reactor according to claim 2, wherein the amount of the filler (9) in the aerobic three-zone (6) is 20-40% of the height of the body tank, a funnel-shaped sludge hopper (13) is arranged at the bottom of the aerobic three-zone (6), a return port (10) is connected to the bottom of the sludge hopper (13), and a sludge discharge port (12) is further connected to the return pipe.