CN204752323U - Vertical integrative sewage treatment device - Google Patents

Abstract

The utility model relates to a vertical integrated sewage treatment device, which includes an anaerobic zone, an aerobic zone and a sedimentation zone; the three zones are three nested and combined structures of sleeves, wherein the sedimentation zone is outside, The aerobic zone is in the middle, and the anaerobic zone is included; the sewage flows into the anaerobic zone through the water inlet pipe, mixes with the activated sludge in the anaerobic zone for anaerobic degradation, and flows into the aerobic zone through the top of the anaerobic zone through overflow; the aerobic zone There is a three-phase separator on the top of the aerobic zone and the anaerobic zone for gas-liquid separation, and the gas generated is discharged from the system through the exhaust pipe; the lower part of the aerobic zone is equipped with an aeration device to realize the aerobic degradation of sewage; the aerobic zone and the sedimentation The bottom of the zone is connected, the sewage after aeration treatment enters the sedimentation zone from the bottom of the aerobic zone and moves upward, while the sludge enters the sludge accumulation zone downwards to realize solid-liquid separation; there is an annular water collection area on the top of the sedimentation zone, and the annular collection area The water area is connected with the outlet pipe, and the treated supernatant water flows out through the outlet pipe.

Description

A vertical integrated sewage treatment device

technical field

The utility model relates to an integrated device suitable for rural scattered sewage treatment, which belongs to the field of environmental protection.

Background technique

With the development of the economy, the widespread use of pesticides and chemical fertilizers and the increase in the discharge of rural domestic sewage, a large amount of nitrogen and other biological nutrients are continuously discharged into rivers and lakes, which accelerates the degree of eutrophication of water bodies. At present, my country's rural sewage discharge is large and the effective treatment rate of sewage is low. The water area is seriously polluted, and the treatment is difficult to meet the national standard.

Although our country has taken a lot of measures to solve the problem of rural water pollution, there are still some problems in terms of technical equipment, such as high infrastructure construction cost and operating cost, and treatment efficiency needs to be improved. my country's rural sewage treatment equipment still has shortcomings such as low efficiency, high energy consumption, high maintenance rate, and low degree of automation. Although with the accelerated pace of reform and opening up, my country has also introduced some foreign equipment, but the price of these equipment is very expensive, which is not conducive to the development of my country's rural sewage treatment equipment manufacturing industry. The utility model has the advantages of low cost, simplicity and effectiveness, high degree of automation, and is suitable for scattered households in rural areas.

Utility model content

The technical problem to be solved by the utility model is to provide a simple, effective and easy-to-operate rural sewage treatment system.

The technical solution adopted by the utility model for solving the above-mentioned technical problems is: a vertical integrated sewage treatment device, including an anaerobic zone, an aerobic zone and a sedimentation zone; the three zones are three sleeves nested with each other Combined structure, in which, from the outside to the inside, the sedimentation zone, aerobic zone and anaerobic zone are set in sequence; the sewage flows in from the bottom of the anaerobic zone through the water inlet pipe, mixes with the activated sludge in the anaerobic zone for anaerobic degradation, and passes through the overflow The method flows into the aerobic area through the top of the anaerobic area; the aerobic area and the top of the anaerobic area are equipped with a three-phase separator for gas-liquid separation, and the generated gas is discharged from the system through the exhaust pipe; the lower part of the aerobic area is equipped with an aeration device The aerobic area is connected to the bottom of the sedimentation area; the top of the sedimentation area is provided with an annular water collection area, which is connected to the outlet pipe; the bottom of the sedimentation area is a sludge accumulation area.

Further, the anaerobic zone is a channel connecting up and down, the upper end of the channel communicates with the aerobic zone, and the lower end of the channel communicates with the sludge accumulation area through a sludge anti-recoil device.

Further, the sludge anti-recoil device is a hollow structure with a wide middle and narrow ends.

Further, the diameter-to-height ratio of the channels in the anaerobic zone is 1:4-8.

Further, a sludge deflector is provided at the bottom of the aerobic zone, and a sludge settlement channel is formed between the sludge deflector and the outer wall of the sludge anti-recoil device.

Further, the aeration device includes a main air intake pipe, an annular pipe, and an air injection head, wherein the main air intake pipe communicates with the annular pipe, and more than one air injection head is arranged on the annular pipe.

Further, the air spray head is a porous blown aluminum alloy structure.

Further, the precipitation zone is a structure with a wide top and a narrow bottom.

Further, a sludge discharge pipe is provided at the center of the bottom of the sludge accumulation area.

Beneficial effects of the utility model vertical integrated sewage treatment device:

The beneficial effects of the utility model:

First, the bottom of the anaerobic zone is equipped with a sludge anti-recoil device, which is a hollow structure with a wide middle and narrow ends. The outer structure with narrow top and wide bottom at the upper part and the deflector form a sludge settlement channel, which is conducive to the separation of sludge and water; the outer structure with a narrow top and narrow bottom at the lower part can prevent sludge recoil when sludge enters the sludge accumulation area Floating; the hollow structure makes the aging bacteria micelles produced in the reaction of the sewage in the anaerobic zone sink into the sludge accumulation zone, effectively improving the sludge treatment effect.

Second, the aerobic zone is equipped with a deflector, which forms a sludge settlement channel between the sludge anti-recoil device at the bottom of the anaerobic zone, which is conducive to the sludge impurities after aerobic treatment entering the sludge accumulation zone, enhancing the The effect of sewage treatment.

Third, the aeration device provides sufficient oxygen for the microorganisms in the activated sludge and biofilm to ensure the activity of the microorganisms.

Fourth, the top of the system is equipped with a ring-shaped water collection area, which is convenient for collecting and discharging the treated supernatant water.

Fifth, the shape of the sedimentation area is designed as a bucket-shaped structure with a wide top and a narrow bottom, which improves the sedimentation effect of solids in sewage.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the vertical integrated sewage treatment device described in the utility model;

Fig. 2 is the internal structural diagram of the vertical integrated sewage treatment device described in the utility model;

Fig. 3 is a structural diagram of the aeration device of the vertical integrated sewage treatment device described in the present invention;

Fig. 4 is a schematic structural view of the sludge anti-recoil device of the vertical integrated sewage treatment device described in the present invention;

Among them, 1 is the water inlet pipe, 2 is the sludge anti-recoil device, 3 is the mud discharge pipe, 4 is the deflector, 5 is the aeration pipe, 5-1 is the main air intake pipe, 5-2 is the ring pipe, 5-3 is the jet head, 6 is the anaerobic zone, 7 is the aerobic zone, 8 is the sedimentation zone, 9 is the three-phase separator, 10 is the annular water collection zone, 11 is the exhaust pipe, 12 is the outlet pipe, 13 is the pool wall, and 14 is the sludge accumulation area.

Detailed ways

The vertical integrated sewage treatment device provided by the utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 2, the schematic diagram of the vertical integrated sewage treatment device provided by the utility model is composed of three parts from the inside to the outside, the inner layer is an anaerobic zone 6, the middle layer is an aerobic zone 7, and the outer layer is a sedimentation zone 8. Sewage flows in from the water inlet pipe 1, and is mixed with the activated sludge in the anaerobic zone 6 for anaerobic degradation, and a sludge anti-recoil device 2 is installed at the bottom. The sewage flows into the aerobic zone 7 through the top of the anaerobic zone 6; the aerobic zone 7 and the top of the anaerobic zone 6 are provided with a three-phase separator 9 for gas-liquid separation, and the generated gas is discharged from the system through the exhaust pipe 11; the aerobic zone 7 The lower part is equipped with an aeration device 5; the aerobic zone 7 is connected to the bottom of the sedimentation zone 8, and the sewage after aeration treatment enters the sedimentation zone 8 from the bottom and moves upwards, while the sludge flows downward under the action of the deflector 4 at the bottom. Enter the sludge accumulation area 14 to realize solid-liquid separation. The top of the sedimentation area 8 is provided with an annular water collection area 10, which is connected with the water outlet pipe 12, and the treated supernatant water flows out through the water outlet pipe 12.

The shape of the sedimentation zone 8 is designed as a bucket-shaped structure with a wide top and a narrow bottom, which improves the sedimentation effect of solids in sewage.

As shown in Figure 3, the aeration device 5 is composed of a main air intake pipe 5-1, an annular pipe 5-2, and an air spray nozzle 5-3. The main air intake pipe 5-1 communicates with the annular pipe 5-2, and more than one air spray head 5-3 is arranged on the annular pipe 5-2, and the air spray head is a multi-hole blown aluminum alloy air spray nozzle. The device can ensure the aeration requirement of the aerobic zone 7, provide sufficient oxygen for the growth of microorganisms in the activated sludge and biofilm, and ensure the activity of microorganisms.

As shown in Figure 4, the bottom schematic diagram of the vertical integrated sewage treatment device provided by the utility model, the deflector 4 provided at the bottom of the aerobic zone 7 of the system and the sludge anti-recoil device 2 at the bottom of the anaerobic zone 6 A sludge settlement channel is formed between them, which is beneficial for the sludge after aerobic treatment to settle to the sludge accumulation area 14; the bottom of the anaerobic area 6 communicates with the sludge accumulation area 14, and the aging bacteria micelles produced after the anaerobic area treatment pass through The hollow structure of the sludge anti-recoil device 2 sinks into the sludge accumulation area. Bacterial micelles are an important part of activated sludge and biofilm, and have a strong ability to adsorb and oxidize organic matter. The aged bacterial micelles have a higher density than water due to the adsorption of many impurities. The diameter-to-height ratio of the channel in the anaerobic zone is 1:4~8, and the effect of the hollow structure on the anaerobic effect is within the allowable range; the effect of sewage treatment is enhanced.

Claims (9)

1. A vertical integrated sewage treatment device, comprising an anaerobic zone (6), an aerobic zone (7) and a sedimentation zone (8); it is characterized in that: the three zones are three sleeves embedded in each other A set of combined structures, in which the sedimentation zone (8), the aerobic zone (7) and the anaerobic zone (6) are arranged sequentially from the outside to the inside; the sewage flows in from the bottom of the anaerobic zone (6) through the water inlet pipe (1), and the The activated sludge in the anaerobic zone (6) is mixed for anaerobic degradation, and flows into the aerobic zone (7) through the top of the anaerobic zone (6) through overflow; the aerobic zone (7) and the top of the anaerobic zone (6) There is a three-phase separator (9) for gas-liquid separation, and the gas generated is discharged from the system through the exhaust pipe (11); the lower part of the aerobic zone (7) is equipped with an aeration device (5); the aerobic zone (7) It communicates with the bottom of the sedimentation area (8); the top of the sedimentation area (8) is provided with an annular water collection area (10), and the annular water collection area (10) is connected to the outlet pipe (12); the bottom of the sedimentation area (8) is for sludge accumulation District (14). 2. The vertical integrated sewage treatment device according to claim 1, characterized in that the anaerobic zone (6) is a channel connecting up and down, and the upper end of the channel communicates with the aerobic zone (7) , the lower end of the channel communicates with the sludge accumulation area (14) through a sludge anti-recoil device (2). 3. The vertical integrated sewage treatment device according to claim 2, characterized in that the sludge anti-recoil device (2) is a hollow structure with a wide middle part and narrow ends. 4. The vertical integrated sewage treatment device according to claim 3, wherein the diameter-to-height ratio of the channels in the anaerobic zone is 1:4-8. 5. The vertical integrated sewage treatment device according to any one of claims 2 to 4, characterized in that, the bottom of the aerobic zone (7) is provided with a sludge deflector (4), and the sewage A sludge settling channel is formed between the mud deflector (4) and the outer wall of the sludge anti-recoil device (2). 6. The vertical integrated sewage treatment device according to claim 1, characterized in that, the aeration device (5) includes a main air intake pipe (5-1), an annular pipe (5-2), an air jet head (5-3), wherein the main air intake pipe (5-1) communicates with the annular pipe (5-2), and more than one air injection head (5-3) is arranged on the annular pipe (5-2). 7. The vertical integrated sewage treatment device according to claim 6, characterized in that, the air spray head (5-3) is a porous air blowing aluminum alloy structure. 8. The vertical integrated sewage treatment device according to claim 1, characterized in that the settling area (8) has a structure that is wide at the top and narrow at the bottom. 9. The vertical integrated sewage treatment device according to claim 1, characterized in that, a sludge discharge pipe (3) is provided at the center of the bottom of the sludge accumulation area (14).