Integrated AO biochemical reactor

Abstract

The utility model discloses an integrated AO biochemical reactor, which relates to the technical field of sewage treatment, and specifically comprises an anoxic zone and an aerobic zone, the anoxic zone and the aerobic zone are both of an annular structure, the anoxic zone and the aerobic zone are integrated into a whole in an inner and outer annular arrangement structure, and the aerobic zone is arranged on the periphery of the anoxic zone; a water distribution system is arranged in the center of the anoxic zone and is used for distributing sewage, an overflow weir is arranged at the top of the anoxic zone, a water passing port is formed in one side of the overflow weir, and the treated sewage in the anoxic zone automatically flows to the aerobic zone through the overflow weir and the water passing port. According to the integrated AO biochemical reactor, a traditional reinforced concrete structure or a traditional rectangular carbon steel structure is replaced by an inner and outer annular carbon steel structure, so that the construction precision can be effectively improved, the occupied area is reduced, the construction period is shortened, the manufacturing cost is reduced, the investment is saved, and meanwhile, the integrated AO biochemical reactor is more environment-friendly and can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely is a kind of integrated AO biochemical reactor. BACKGROUND

[0002] Sewage treatment plant generally uses pretreatment+materialization treatment+biochemical treatment process, and after sewage treatment reaches standard, it is discharged. In sewage treatment plant, biochemical treatment system is the most core processing section, and it is the key to reach standard of sewage treatment.

[0003] The biochemical treatment system of traditional sewage plant generally uses reinforced concrete structure, and this structure has many problems: the reinforced concrete pool body involves large amount of civil engineering, is easy to produce construction waste, has large carbon emission, has long overall construction period, and has relatively high overall cost. And after the service period of sewage treatment plant ends, the reinforced concrete pool body can only be demolished and scrapped, cannot be used secondly, and almost has no recycling value, but needs to handle a large amount of construction waste.

[0004] In addition, some sewage stations using carbon steel pool body often design the pool body into rectangle, and if larger pool capacity is needed, the design of rectangle will lead to unstable pool body structure, and a large number of reinforcing bars and reinforcing bars need to be added, which is high in cost.

[0005] Based on this, the application provides an integrated AO biochemical reactor. CONTENT OF UTILITY MODEL

[0006] The utility model provides a kind of integrated AO biochemical reactor, solve the problem that the existing concrete pool body investment is higher, economic benefit is lower in the background art described above;The existing rectangular carbon steel pool body structure is unstable, and the cost is high.

[0007] The utility model provides the following technical scheme: an integrated AO biochemical reactor, including anoxic zone and aerobic zone, the anoxic zone and aerobic zone are annular structure, the anoxic zone and aerobic zone are integrated in the structure of inner and outer annular arrangement, the aerobic zone is arranged at the periphery of anoxic zone;

[0008] The center of the anoxic zone is provided with water distribution system, the water distribution system is arranged with sewage, the top of the anoxic zone is provided with overflow weir, the outer side of the overflow weir is provided with water passageway, the treated sewage in the anoxic zone is self-flowed to the aerobic zone through overflow weir and water passageway;

[0009] The bottom of the inner cavity of the aerobic zone is uniformly provided with a lifting aeration pipe, the inner cavity of the aerobic zone is provided with a baffle, the baffle is arranged on the side of counterclockwise direction of water passageway, the outer side of the top of the aerobic zone is provided with water outlet, the baffle is located between water passageway and water outlet, the bottom end of the aerobic zone is provided with nitration liquid backflow port, and the nitration liquid backflow port is connected with water distribution system through pump.

[0010] Preferably, the water distribution system comprises water distribution pipes which are uniformly distributed in the anoxic zone.

[0011] Preferably, a submersible mixer is arranged in the anoxic zone.

[0012] Preferably, the liftable aeration pipe is provided with a valve, an aeration main pipe is arranged in the aerobic zone, the liftable aeration pipe is connected with the aeration main pipe, and the aeration main pipe is connected with an aeration blower.

[0013] Preferably, the sewage flows through the entire aerobic zone in a counterclockwise direction.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The integrated AO biochemical reactor replaces the traditional reinforced concrete structure or the traditional rectangular carbon steel structure with the inner and outer annular carbon steel structure, which can effectively improve the construction precision, reduce the land occupation, shorten the construction period, reduce the cost, save the investment, is more friendly to the environment, and can be recycled twice.

[0016] 2. The integrated AO biochemical reactor integrates the anoxic zone and the aerobic zone in the inner and outer annular arrangement structure, has high integration degree, is more convenient to operate and maintain, and has higher reaction efficiency; the annular design is stable in structure and has low investment.

[0017] 3. The integrated AO biochemical reactor can control the sewage flow direction by arranging the baffle, so that the sewage flows in the aerobic zone in a counterclockwise direction to prevent short flow; the water distribution system is arranged to improve the uniformity of the sewage distribution in the anoxic zone, so that the microorganisms can degrade and oxidize the sewage; and the liftable aeration pipe can be lifted to the water surface for inspection, cleaning and maintenance without affecting the normal operation of the sewage treatment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A schematic view of the integrated AO biochemical reactor is shown in the utility model.

[0019] In the drawing: 1, anoxic zone; 2, aerobic zone; 3, water distribution system; 3.1, water distribution pipe; 4, submersible mixer; 5, overflow weir; 6, water passage; 7, liftable aeration pipe; 7.1, valve; 8, aeration main pipe; 9, baffle; 10, water outlet; 11, nitrification liquid return port. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0021] The utility model provides an embodiment: please refer to Figure 1 An integrated AO biochemical reactor, comprising an anoxic zone 1 and an aerobic zone 2, the anoxic zone 1 and the aerobic zone 2 are annular structures, the anoxic zone 1 and the aerobic zone 2 are integrated in the structure of inner and outer annular arrangement, the aerobic zone 2 is arranged at the periphery of the anoxic zone 1, so the structure of the integrated AO biochemical reactor is stable, the investment is lower, the integration degree is high, the operation and maintenance are more convenient, and the reaction is more efficient, the aerobic zone 2 and the anoxic zone 1 form the inner and outer annular carbon steel structure to replace the traditional reinforced concrete structure or the traditional rectangular carbon steel structure, which can effectively improve the construction precision, reduce the land occupation, shorten the construction period, reduce the cost, save the investment, and be more friendly to the environment, and can be recycled.

[0022] The anoxic zone 1 is provided with a water distribution system 3, the water distribution system 3 comprises a water distribution pipe 3.1, the water distribution pipe 3.1 is uniformly distributed in the anoxic zone 1, the water distribution system 3 is used for uniformly distributing sewage, and a submersible mixer 4 is further arranged in the anoxic zone 1, the submersible mixer 4 is used for improving the aeration and mixing of wastewater in the anoxic zone, so as to better promote the microbial degradation and oxidation treatment of wastewater.

[0023] The top of the anoxic zone 1 is provided with an overflow weir 5, the outer side of the overflow weir 5 is provided with a water inlet 6, the sewage treated in the anoxic zone 1 enters the water inlet 6 through the overflow weir 5, and then flows into the aerobic zone 2 outside the biochemical reactor.

[0024] The bottom of the inner cavity of the aerobic zone 2 is uniformly provided with a lift aeration pipe 7, the lift aeration pipe 7 is used for increasing the dissolved oxygen content in water, creating an aerobic environment, and in the use process of the present application, the lift aeration pipe 7 can be conveniently lifted to the water surface for inspection, cleaning and maintenance without affecting the normal operation of sewage treatment, the lift aeration pipe 7 is the prior art, and in some embodiments of the present application, the lift aeration pipe 7 is disclosed in the authorized patent document with the application number CN202411077119.9. The lift aeration pipe 7 is provided with a valve 7.1, so as to accurately control the aeration amount and aeration intensity, the aerobic zone 2 is further provided with an aeration main pipe 8, the lift aeration pipe 7 is connected with the aeration main pipe 8, the aeration main pipe 8 is connected with the air outlet end of the aeration fan, and the aeration fan is the prior art, which will not be repeated here.

[0025] The baffle 9 is arranged on the side of the water overflow port 6 in the counterclockwise direction, and the sewage entering the aerobic zone 2 through the water overflow port 6 flows through the entire aerobic zone 2 in the counterclockwise direction under the action of the baffle 9. The water overflow port 10 is arranged on the outer side of the top end of the aerobic zone 2, and the baffle 9 is located between the water overflow port 6 and the water overflow port 10. The sewage in the aerobic zone 2 can be discharged through the water overflow port 10, and the arrangement of the baffle 9 can prevent short flow.

[0026] The bottom end of the aerobic zone 2 is provided with a nitrification liquid reflux port 11, and the nitrification liquid reflux port 11 is connected with the water distribution system 3 through a pump. The pump can be a sewage pump in the prior art. The sewage is refluxed to the water distribution system 3 in the anoxic zone 1 through the corresponding pipeline and the pump, so as to improve the removal rate of the reactor to the pollutants.

[0027] The electric elements involved in the present application are all prior art, and those skilled in the art understand their connection mode. Through the personnel in the art, all the electric elements in the present application and the power supply matched therewith are connected through wires, and according to the actual situation, a suitable controller is selected to meet the control requirement. The specific connection and control sequence are described below, and the working order of the electric elements is completed. The detailed connection means is a known technology in the art, and the working principle and process are mainly introduced below, and the electric control is not described.

[0028] In summary: the integrated AO biochemical reactor adopts a ring design, and the anoxic zone 1 and the aerobic zone 2 are arranged in an inner-outer ring structure and integrated in one body. The structure is stable, the investment is low, the integration degree is high, the operation and maintenance are more convenient, and the reaction is more efficient.

[0029] When the integrated AO biochemical reactor is used, the sewage to be treated is uniformly distributed in the anoxic zone 1 through the water distribution system 3. The microorganisms in the anoxic zone 1 degrade and oxidize the sewage. The treated sewage enters the water overflow port 6 through the overflow weir 5, and then flows into the aerobic zone 2 outside the integrated AO biochemical reactor by gravity. Under the action of the baffle 9, the sewage flows through the entire aerobic zone 2 in the counterclockwise direction, and then is discharged through the water overflow port 10 on the aerobic zone 2. The sewage at the bottom end of the aerobic zone 2 is refluxed to the water distribution system 3 in the anoxic zone 1 through the pipeline and the pump, so as to improve the removal rate of the reactor to the pollutants.

[0030] The utility model uses to standard parts can be bought from market, and the special-shaped part can be ordered according to the record of specification and drawing, and the specific connecting mode of each part all adopts the conventional means such as bolt in prior art, and the machinery, parts and equipment all adopt conventional model in prior art, and this will not be described in detail, the content not being described in detail in the specification belongs to the prior art known to the person skilled in the art, although the embodiment of the utility model has been shown and described, for the ordinary skilled person in the art, it can be understood that the embodiment can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated AO bioreactor, comprising an anoxic zone (1) and an aerobic zone (2), characterized in that: Both the hypoxic zone (1) and the aerobic zone (2) are ring structures. The hypoxic zone (1) and the aerobic zone (2) are integrated into one unit with an inner and outer ring arrangement. The aerobic zone (2) is located on the periphery of the hypoxic zone (1). The anoxic zone (1) is equipped with a water distribution system (3) at its center, which distributes sewage. An overflow weir (5) is provided at the top of the anoxic zone (1), and a water outlet (6) is provided on the outside of the overflow weir (5). The treated sewage in the anoxic zone (1) flows by gravity to the aerobic zone (2) through the overflow weir (5) and the water outlet (6). The bottom of the aerobic zone (2) is uniformly provided with liftable aeration pipes (7). The aerobic zone (2) is provided with a baffle (9). The baffle (9) is located on the counterclockwise side of the water inlet (6). The top outer side of the aerobic zone (2) is provided with a water outlet (10). The baffle (9) is located between the water inlet (6) and the water outlet (10). The bottom end of the aerobic zone (2) is provided with a nitrification liquid return port (11). The nitrification liquid return port (11) is connected to the water distribution system (3) through a pump.

2. The integrated AO bioreactor according to claim 1, characterized in that: The water distribution system (3) includes water distribution pipes (3.1), which are evenly distributed in the anoxic zone (1).

3. The integrated AO bioreactor according to claim 1, characterized in that: A submersible mixer (4) is also installed in the hypoxic zone (1).

4. The integrated AO bioreactor according to claim 1, characterized in that: The liftable aeration pipe (7) is equipped with a valve (7.1), and the aerobic zone (2) is also equipped with an aeration main pipe (8). The liftable aeration pipe (7) is connected to the aeration main pipe (8), and the aeration main pipe (8) is connected to the aeration blower.

5. The integrated AO bioreactor according to claim 1, characterized in that: Wastewater flows counterclockwise through the entire aerobic zone (2) within the aerobic zone (2).

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