CN112047461A - SBR (sequencing batch reactor) biological integrated wastewater treatment tank - Google Patents

Abstract

The invention discloses a SBR (sequencing batch reactor) biological integrated wastewater treatment tank which comprises a tank body, a guardrail and a body protection ladder stand, wherein an air-lift lifting pipe is installed at the top end of the tank body, a notch is formed in the lower end of the air-lift lifting pipe, an air-water mixture can be better collected to form an air-lift effect, the top end of the air-lift lifting pipe is directly communicated with the external atmosphere, a lifting aeration device and a three-phase separation device are arranged in the tank body, the three-phase separation device comprises a conical hopper and a central cylinder, a water inlet pipe is arranged on the side surface of the bottom end of the tank body, a water outlet pipe is arranged on the side surface of.

Description

SBR biological integrated wastewater treatment tank

technical field

The invention relates to the field of sewage treatment, in particular to an SBR biological integrated wastewater treatment tank.

Background technique

With the rapid development of my country's economy, the living standards of rural residents have also improved significantly, but with it, the discharge of sewage has increased. The arbitrary discharge of domestic sewage not only causes the destruction of rivers and groundwater, but also pollutes the living environment and affects the health of people. Therefore, it is necessary to strictly control the treatment and discharge of rural sewage.

At present, rural sewage treatment methods include physical treatment method, biological treatment method, etc. Among them, the most commonly used rural sewage treatment system is aerobic biological treatment technology. Aerobic biological treatment technology mainly includes activated sludge treatment technology and biofilm treatment technology, including SBR and A20 simultaneous nitrogen and phosphorus removal technology. The problems such as the distribution of villages are scattered and not concentrated, resulting in the inability to achieve centralized treatment of rural sewage, and the existing technical treatment effect is not ideal.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above problems, and design a SBR biological integrated wastewater treatment tank.

The technical scheme of the present invention to achieve the above objects is that an SBR biological integrated wastewater treatment tank includes a tank body, a guardrail, and a protective climbing ladder. A phase separation device, an air-lifting riser and a water outlet pipe are provided, and the lower end of the air-lifting riser is provided with a gap.

Preferably, the water inlet pipe is arranged at the bottom of the tank body, and the water outlet pipe is arranged at the top side wall of the tank body.

Preferably, the three-phase separation device includes a central cylinder and a cone, the central cylinder is located at the top of the tank, coincides with the central axis of the tank, and extends above the cone, and the cone is welded and installed on the inner side wall of the tank.

Preferably, the central cylinder is installed in the channel steel on the top of the tank body through bolts, the central cylinder is movably connected to the tank body, and can be manually adjusted vertically.

Preferably, the cone and the tank are connected and fixed by a partition plate. The cone is arranged to better separate gas and solid. The top of the cone makes the central cylinder better for gas collection and enables solids to slide off the cone surface. There is a baffle plate at the connection with the tank, in order to better fix the cone.

Preferably, the liftable aeration device includes a rotary mixing aeration head, an aeration pipe and a hanging hose, the aeration pipe is suspended inside the tank body through the hanging hose, and the rotary mixing aeration head is installed On the aeration pipe, the hanging hose is installed in the central cylinder at the top of the tank, the aeration head is connected with an aeration pipe, and is connected to an external fan through the hanging hose, and intermittent aeration is performed by controlling the fan. gas.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

The SBR biological integrated wastewater treatment tank of the present invention has a vertical tank body, and a three-phase separation device is arranged to separate the mud and water gas, and the separation effect is better. The operation reduces maintenance time and ensures the continuity of operation. At the same time, compared with the traditional equipment, the equipment occupies a small area, which solves the problems of a wide distribution area in rural areas, scattered distribution, and inability to concentrate sewage treatment. It has a compact structure and is easy to operate Simple, more efficient treatment of sewage.

Description of drawings

Fig. 1 is the structural schematic diagram of the SBR biological integrated wastewater treatment tank of the present invention;

Fig. 2 is the side view of SBR biological integrated wastewater treatment tank of the present invention;

3 is a schematic diagram of the internal structure of the SBR biological integrated wastewater treatment tank of the present invention.

In the figure, 1, tank body; 2, guardrail; 3, water inlet pipe; 4, rotary mixing aeration head; 5, aeration pipe; 6, cone bucket; 7, center cylinder; 8, gap; 9, air lift 10. Water outlet pipe; 11. Suspension hose; 12. Three-phase separation device; 13. Liftable aeration device.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figure 1, an SBR biological integrated wastewater treatment tank includes a tank body 1, a guardrail 2, and a protective ladder. The tank body 1 is sequentially provided with a water inlet pipe 3, a liftable aeration device 13, and a third The phase separation device 12, the air-lifting riser 9 and the water outlet pipe 10, the top of the tank 1 is provided with an air-lifting riser 9, the top of the air-lifting riser 9 is directly connected to the external atmosphere, and the lower end of the air-lifting riser 9 is provided with a gap 8 , which can better collect the gas-water mixture and form the air-lifting effect. The tank body 1 is provided with a three-phase separation device 12. The three-phase separation device 12 includes a cone 6 and a central cylinder 7, which can better separate the gas and solid. The inside of the body 1 is also provided with a liftable aeration device 13. The liftable aeration device 13 includes a rotary mixing aeration head 4, an aeration pipe 5, and a hanging hose 11. The rotary mixing aeration head 4 is installed on the aeration pipe 5. , the aeration pipe 5 is suspended in the top center cylinder 7 of the tank body 1 through the hose 11, and the aeration pipe 5 is 100mm away from the bottom end of the tank body 1. The hanging hose 11 is connected to the external fan, and by controlling the fan, the For the effect of intermittent aeration, the bottom side wall of the tank body 1 is provided with a water inlet pipe 3, the top side wall of the tank body 1 is provided with a water outlet pipe 10, and the tank body 1 adopts a vertical tank body, which reduces the floor space and enhances the treatment. efficiency.

The three-phase separation device 12 includes a cone 6 and a central cylinder 7. The central cylinder 7 is located at the top of the tank body 1, coincides with the central axis of the tank body 1, and extends to the top of the cone 6. The cone 6 It is welded on the inner side wall of the tank body 1; the central cylinder 7 can collect gas and empty it, so that the gas in the outer area of the central cylinder 7 is reduced as much as possible, which is convenient for gas-solid separation above the cone 6; the central cylinder 7 can be adjusted vertically , and is installed on the channel steel on the top of the tank body 1 through bolts, and through the adjustment of the center cylinder 7 up and down, the gas is collected and evacuated as much as possible.

The cone 6 is welded to the side wall of the tank below the center cylinder 7. There is a partition between the cone 6 and the side wall of the tank 1. The partition can better fix the cone 6 and maintain the welding of the cone 6. stability.

The water inlet pipe 3 is located at the bottom of the tank body 1 and can continuously enter water, and the water outlet pipe 10 is located at the top side wall of the tank body 1 and can continuously discharge water.

The bottom of the tank body 1 is evenly distributed with reinforcing plates to enhance the strength of the tank body 1, and the vertical tank body structure is adopted to reduce the floor space.

Working process: the sewage continuously enters the tank 1 through the bottom water inlet pipe 3, passes through the aeration of the liftable aeration device 13 from bottom to top, the three-phase separation of the three-phase separation device 12, and finally enters the water outlet pipe 10 and flows out of the tank 1. , using continuous water inlet, intermittent aeration, and continuous water outlet, the aeration device 13 can be upgraded to increase the oxygen content of the sewage, so that the activated sludge is retained after the sewage is aerated, and the microbial decomposition in the activated sludge in the aeration stage is stopped. The organic matter in the sewage is then passed through the three-phase separation device 12, and the sludge is intercepted. After the remaining part of the mud-water mixture passes through the cone 6, the sludge slips back to the aeration zone, and the gas is removed by the central cylinder. 7. The collected sewage is discharged into the atmosphere through the air lift riser 9, and the treated sewage is discharged into the tank 1 through the water outlet pipe 10. This device can significantly improve the efficiency of sewage treatment, stable operation, easy to adjust, and saves the structure of the vertical tank. It saves the floor space and solves the problem of inconsistency in rural wastewater treatment.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principle and spirit of the invention Variations, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. an SBR biological integrated wastewater treatment tank, comprising a tank body (1), a guardrail (2) and a bodyguard climbing ladder, it is characterized in that: the top of the tank body (1) is equipped with an air lift riser (9), The top of the air-lifting riser (9) is directly connected to the external atmosphere, the lower end of the air-lifting riser (9) is provided with a gap (8), and the tank (1) is provided with a liftable aeration device ( 13) and a three-phase separation device (12), the tank body (1) is provided with a water inlet pipe (3) on the bottom end side and a water outlet pipe (10) is provided on the top side side of the tank body (1). 2. The SBR biological integrated wastewater treatment tank according to claim 1, characterized in that: the three-phase separation device (12) comprises a cone (6) and a central cylinder (7), and the central cylinder (7) It is located at the top of the tank body (1), and coincides with the central axis of the tank body (1), and extends to the top of the cone (6), which is welded to the inner side wall of the tank body (1). superior. 3. The SBR biological integrated wastewater treatment tank according to claim 2, characterized in that: the center cylinder (7) is installed in the channel steel at the top of the tank body, and the center cylinder (7) is connected to the tank body (7). 1) Active connections. 4. The SBR biological integrated wastewater treatment tank according to claim 2, characterized in that: the cone (6) and the tank body (1) are connected and fixed through a partition. 5. The SBR biological integrated wastewater treatment tank according to claim 1, wherein the liftable aeration device (13) comprises a rotary mixing aeration head (4), an aeration pipe (5), a suspension soft A pipe (11), the rotary mixing aeration head (4) is mounted on the aeration pipe (5), and is connected to a hanging hose (11), and the aeration pipe (5) passes through the hanging hose (11) ) hangs vertically inside the tank body and is 100mm away from the bottom end of the tank body (1), the hanging hose (11) is installed in the top center cylinder (7) of the tank body (1), and is connected to the external fan . 6. The SBR biological integrated wastewater treatment tank according to claim 5, characterized in that: the liftable aeration device (13) can replace the aeration head (4) and the aeration head by lifting the hanging hose (11). Tube (5). 7 . The SBR biological integrated wastewater treatment tank according to claim 5 , wherein the liftable aeration device ( 13 ) adopts intermittent aeration and is controlled by an external fan. 8 . 8. The SBR biological integrated wastewater treatment tank according to claim 1, wherein the water inlet pipe (3) is located at the bottom of the tank body (1), and the water outlet pipe (10) is located in the tank body (1) top sidewall. 9 . The SBR biological integrated wastewater treatment tank according to claim 1 , wherein the guardrail ( 2 ) is installed on the top of the tank body ( 1 ). 10 . 10. The SBR biological integrated wastewater treatment tank according to claim 1, wherein the tank body (1) is a vertical tank body.

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