CN215161452U

CN215161452U - Small-size aeration tank of high-efficient operation

Info

Publication number: CN215161452U
Application number: CN202120761490.2U
Authority: CN
Inventors: 杨亚红; 朱立帆; 刘梓睿; 钟婕; 赵学昊
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-14
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a small aeration tank capable of efficiently removing pollutants in water, which comprises an aeration tank with an impermeable material on the side wall, a miniature aeration hole, a motor and a biological rope packing baffle. The peripheral wall of the aeration tank is in a closed state except for opening necessary water inlet and outlet, air pipe inlet and vent of an exhaust valve for preventing methane gas from detonating. The inclination angle of the biological rope filler baffle is 0-10 degrees, and the biological rope filler baffle has the following two functions: the first is that the biological rope filler is used as a carrier, and the second is that the total energy of the water body is weakened, so that the biological rope filler stays on the biological rope filler for more time, the water body staying time of the aeration tank can be prolonged, and the specific surface area of the filler contacted with microorganisms and the water body is increased to improve the water purification efficiency; the water flow of the novel device is sequentially communicated to three zones from top to bottom, namely an anaerobic zone a, an anoxic zone b and an aerobic zone c, so that the effects of nitrogen and phosphorus removal are improved.

Description

Small-size aeration tank of high-efficient operation

Technical Field

The utility model relates to a sewage station treatment facility technical field specifically is a small-size aeration tank of high-efficient operation.

Background

The aeration tank is a structure for sewage treatment by using an activated sludge method, a certain sewage retention time is provided in the tank, the oxygen amount required by aerobic microorganisms and the mixing condition of full contact between sewage and activated sludge are met, the aeration tank mainly comprises a tank body, an aeration system and a water inlet and a water outlet, the tank body is generally built by reinforced concrete, the plane shape of the tank body is rectangular, square, circular and the like, and the traditional aeration tank can effectively treat organic matters in water but cannot remove other pollutants; other improved aeration tanks can remove other pollutants, but the treatment efficiency is not high.

The eutrophication of water body can be caused by excessive nitrogen and phosphorus substances in water, thereby leading to: (1) eutrophication reduces the transparency of the water body, making it difficult for sunlight to penetrate through the water permeable layer, thereby affecting photosynthesis and oxygen release of plants in the water. Meanwhile, the mass propagation of plankton consumes a large amount of oxygen in water, resulting in serious shortage of dissolved oxygen in water. However, photosynthesis of plants on water surfaces may result in partial supersaturation of dissolved oxygen. The supersaturation of dissolved oxygen and the lack of dissolved oxygen in water are harmful to aquatic animals, mainly fish, resulting in the death of a large number of fish. (2) Harmful gas generated by the decomposition of organic matters accumulated in the bottom layer of the eutrophic water body under the anaerobic condition and biotoxin generated by some plankton (such as clam venom) can also cause harm to aquatic animals. (3) The eutrophic water contains nitrite and nitrate, if people and animals drink water with nitrite and nitrate content exceeding the standard for a long time, poisoning, pathogenicity and other hazards can be generated, and the eutrophic water body often causes the disorder of an aquatic ecosystem, the reduction of aquatic species and the destruction of diversity.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a small aeration tank with high-efficiency operation, which comprises an aeration tank, a biological thread filler carrier baffle, a transverse baffle, aeration holes, a filter screen, a blower and an aeration plate; the periphery of the aeration tank is only provided with a water inlet and a water outlet, an air pipe inlet and an exhaust valve port; the aeration tank is provided with two water inlets so as to achieve the effect of convenient operation, and the water inflow forms hydraulic stirring, so that the sludge dead zone is greatly relieved; the peripheral wall of the aeration tank is poured by concrete, the biological rope filler carrier baffle is provided with three baffles, biological rope fillers are flatly laid on the baffles, the biological rope fillers take ropes as attachment carriers, the two sides of the ropes are connected with the side walls by hooks, and when the microbial activity in the biological rope fillers is very low, the biological rope fillers can be taken down and replaced by new biological rope fillers; the transverse baffle is arranged at the upper part of the aeration tank, and the vertical baffle is connected with the transverse baffle; the blower is communicated with the aeration plate through a hose.

As a further aspect of the present invention: the peripheral wall of the aeration tank is made of an impermeable material, and the concrete material is concrete.

As a further aspect of the present invention: the transverse baffle and the biological thread filler carrier baffle are made of concrete.

As a further aspect of the present invention: the air blower is communicated with the aeration plate through an air pipe.

As a further aspect of the present invention: the aeration plate is hollow, and aeration holes are distributed on the upper surface of the aeration plate.

Compared with the prior art, the beneficial effects of the utility model are that: the novel aeration tank can save space, and the effective length of the novel aeration tank is about three times of the length of the aeration tank. The water outlet pipe of the sedimentation tank is internally provided with a filter screen to prevent impurities with larger blocks in water from entering the aeration tank, the peripheral wall of the aeration tank is only provided with two holes, one hole is used for the water inlet of the aeration tank connected with the water outlet pipe of the sedimentation tank, and the other hole is used for the water outlet of the aeration tank. The inclination angle of the movable biological filler baffle is 0-10 degrees, and the movable biological filler baffle has the following two functions: one is biological filler as carrier, and the other is to weaken the total energy of water body, so that the biological filler can stay on the biological filler for more time, and the water body stay time of the aeration tank can be prolonged, thereby improving the water purification efficiency. The flow direction of the water flow is opposite to that of the air flow, so that the air and the water can be fully fused, and the water purification efficiency can be improved. The novel device has the advantages that water flow is sequentially communicated with three areas, namely an anaerobic area, an anoxic area and an aerobic area from top to bottom, so that the nitrogen and phosphorus removal effect is improved.

Drawings

FIG. 1 is a schematic structural diagram of a small aeration tank which operates efficiently;

FIG. 2 is a sectional view of a small-sized aeration tank 1-1 operating at high efficiency;

FIG. 3 is a sectional view of a small-sized aeration tank 2-2 which operates at high efficiency.

In the figure: 1-an aeration tank; 2-biological rope filler carrier baffle; 3-transverse baffles; 4-water inlet pipe; 5-water outlet pipe; 6-filtering the screen; 7-a blower; 71-air pipe; 8-an aeration plate; 81-aeration holes; 9-automatic exhaust valve.

Detailed Description

Referring to fig. 1 to 3, in an embodiment of the present invention, a small aeration tank with high efficiency includes an aeration tank 1, a bio-rope filler carrier baffle 2 and a transverse baffle 3; only two holes of a water inlet and a water outlet are formed in the periphery of the aeration tank 1; the peripheral wall of the aeration tank is cast with concrete to form a biological rope filler baffle 2, and the three baffles are total, and biological rope fillers are flatly laid on the baffles; the transverse baffle 3 is arranged at the upper part of the aeration tank; the blower 7 is communicated with the aeration plate 8 through an air pipe 71.

The novel working principle of this experiment is: the operation console enables the blower 7 to work, the blower inputs air into the aeration plate 8 through the air pipe 71, and the air enters the sewage from the aeration holes 81 on the surface of the aeration plate 8 for aeration; when water enters from the water inlet pipe 4 of the novel aeration tank 1, the water rushes to the transverse baffle 3 under the action of inertia force, then flows to the three baffles with the biological rope packing on the upper parts in sequence so that the water can be fully contacted with the biological rope packing, and finally flows out from the water outlet pipe 5.

The utility model discloses a small aeration tank capable of efficiently removing pollutants (mainly nitrogen, phosphorus and organic matters) in water, which comprises an aeration tank with an impermeable material on the side wall, a miniature aeration hole, a motor and a biological rope packing baffle. The water inlet pipe of the aeration tank is provided with a filter screen to prevent larger impurities in water from entering the aeration tank; the peripheral wall of the aeration tank is in a closed state except for opening necessary water inlet and outlet, air pipe inlet and a vent of an exhaust valve 9 arranged for preventing methane gas from detonating. The inclination angle of the biological rope filler baffle is 0-10 degrees, and the biological rope filler baffle has the following two functions: the first is that the biological rope filler is used as a carrier, and the second is that the total energy of the water body is weakened, so that the biological rope filler stays on the biological rope filler for more time, the water body staying time of the aeration tank can be prolonged, and the specific surface area of the filler contacted with microorganisms and the water body is increased to improve the water purification efficiency; the baffle is long, one side of the baffle is connected with the side wall by concrete pouring, and the biological rope filler carrier baffle 2 is made into a micro-arch shape in order to avoid the occurrence of sludge dead zones. The flow direction of the water flow is opposite to that of the air flow, so that the air and the water can be fully fused, and the water purification efficiency can be improved. The water flow of the novel device is sequentially communicated to three zones from top to bottom, namely an anaerobic zone a, an anoxic zone b and an aerobic zone c, so that the effects of nitrogen and phosphorus removal are improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A small aeration tank which runs efficiently is characterized by comprising an aeration tank (1), a biological rope filler carrier baffle (2), a transverse baffle (3), a water inlet pipe (4), a water discharge pipe (5), a filter screen (6), a blower (7), an air pipe (71), an aeration plate (8) and an automatic exhaust valve (9); the upper part of the peripheral wall of the aeration tank (1) is provided with a water inlet pipe (4), and the lower part is provided with a water outlet pipe (5); the blower (7) is communicated with the aeration plate (8) through an air pipe (71); the peripheral wall of the aeration tank (1) is connected with the biological rope filler carrier baffles (2) by concrete, the upper part and the lower part of the aeration tank are provided with three biological rope filler carrier baffles (2), and biological rope fillers are flatly distributed on the upper surface of the aeration tank; the transverse baffle (3) is arranged at the upper part of the aeration tank (1) and is slightly lower than the inlet height of the water inlet pipe (4); the top of the aeration tank (1) is provided with an automatic exhaust valve (9).

2. The small-sized aeration tank with high efficiency operation according to claim 1, wherein the number of the water inlet pipes (4) is two, and the two water inlet pipes are arranged at an included angle with each other.

3. The small scale aeration tank for high efficiency operation according to claim 1, wherein the inlet pipe (4) is provided with a screen.

4. The small-sized aeration tank for high-efficiency operation according to claim 1, wherein the inclination angle of the bio-cord filler carrier baffle (2) is 0 ° to 10 ° and is inclined inward and downward from the connection end with the peripheral wall.

5. A highly efficient small-sized aeration tank according to claim 1, wherein the inclination angle of the transverse baffle (3) is 0 ° to 10 ° and is inclined inward and downward from the end connected to the peripheral wall.

6. The small-sized aeration tank for high-efficiency operation according to claim 1, wherein the bio-cord filler carrier baffle (2) has a micro-arch shape with a convex center.

7. The small-sized aeration tank with high efficiency operation according to claim 1, characterized in that the impermeable material of the peripheral wall of the aeration tank (1) is concrete.

8. The small-sized aeration tank with high efficiency operation according to claim 1, wherein the transverse baffle (3) and the biological line filler carrier baffle (2) are made of concrete.

9. The small scale aeration tank for high efficiency operation according to claim 1, wherein the aeration plate (8) is hollow inside, and aeration holes (81) are distributed on the upper surface of the aeration plate (8).