CN106380031B - A kind of purification method of aeration and oxygenation type lake water body - Google Patents

Abstract

The invention discloses an aeration and oxygenation type purification method of lake water, which comprises the following steps of 1) filtering sewage; 2) aeration treatment of sewage: 3) flocculation and separation of sludge: 4) and (5) disinfecting the sludge. The invention has simple structure and strong practicability, comprehensively treats the lake sewage through the filter tank, the aeration tank, the sedimentation tank and the disinfection tank, effectively improves the treatment quality of the sewage, and increases the dissolved oxygen content in the sewage through the aeration tank, thereby improving the self-purification capacity of the lake sewage.

Description

A kind of purification method of aeration and oxygenation type lake water body

technical field

The invention relates to a purification method for aeration and oxygenation type lake water body.

Background technique

In the formation and development of a city, lakes, as an important resource and environmental carrier, are related to the survival of the city, restrict the development of the city, and are an important factor affecting the urban style and beautifying the urban environment. Urban lakes have various ecological functions such as water supply, green space, environmental protection, transportation, and cultural education. It shows irreplaceable significance in the construction of cities and the expansion of urban space development. With the acceleration of urbanization in my country, the development and utilization of land on both sides of the lake, the function of urban lakes has been damaged, and a large amount of industrial and domestic sewage is directly discharged into the river without treatment, causing lake water pollution, deterioration of water quality, and destruction of the lake ecological environment. .

An important indicator to measure the water quality of lakes is the dissolved oxygen content, which directly affects the growth of aquatic organisms and the self-purification ability of the river. The higher the dissolved oxygen content, the normal aquatic growth of the lake, the active population of aerobic bacteria, and the better water quality of the lake. In the prior art, the treatment of lake sewage generally adopts simple filtration and disinfection treatment. Although the water quality of the lake can be relieved to a certain extent in the short term, it is not conducive to the long-term treatment of the lake water quality. Moreover, only filtering and disinfection are used for sewage treatment, and the final sewage treatment quality is average.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a technical solution for the purification method of aeration and oxygenation type lake water body in view of the deficiencies in the prior art, and comprehensively treat the lake sewage through a filter tank, an aeration tank, a sedimentation tank and a disinfection tank , effectively improve the quality of sewage treatment, and at the same time increase the dissolved oxygen content in the sewage through the aeration tank, thereby improving the self-purification ability of lake water. This technical method has high working efficiency, low energy loss, and obvious sewage treatment effect. Effective Improve the comprehensive utilization rate.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A method for purifying aeration and oxygenation type lake water body, characterized in that it comprises the following steps:,

1) Filtration of sewage:

a. The suction pump absorbs the sewage in the lake, and then sends it to the water inlet of the filter tank through the sewage conveying pipe, and at the same time controls the amount of sewage entering the filter tank and the sewage treatment rate through the flow control valve on the water inlet of the filter tank;

b. The sewage entering the filter tank first enters the primary filtration chamber for filtration, and the suspended solids and impurity particles in the sewage are filtered and removed by the filtering effect of the filter screen;

c. The sewage treated by the primary filter chamber enters the oil pollution filter chamber, and the oil pollution in the sewage is filtered through the double filtration effect of the filler on the oil pollution filter plate and the filter membrane. At the same time, the oil pollution collection box above the oil pollution filter chamber is adsorbed The tube sucks the oil filtered on the oil filter board, so as to avoid the oil sticking to the oil filter board, affecting the oil filter efficiency of the subsequent sewage, and effectively preventing the oil pollution from causing eutrophic pollution to the water body;

d. The sewage treated by the oil filter chamber enters the aeration tank through the sewage conveying pipe;

2) Aeration treatment of sewage:

a. The sewage is transported to the water inlet of the aeration tank through the sewage pipeline, and the amount of sewage entering the aeration tank is controlled by the flow control valve on the water inlet of the aeration tank, so as to ensure the efficiency of sewage treatment and improve the sewage treatment efficiency. processing quality;

b. The sewage entering the aeration tank first enters the water drop chamber for water drop oxygenation treatment. The sewage enters the water distributor in the water drop chamber through the water inlet of the aeration tank, and passes through the nozzle holes on the water distributor. It is sprayed on the water drop plate, and the contact area between sewage and air is increased through the water drop plate, so that the dissolved oxygen content in the water is higher, and the odor of the water is effectively suppressed;

c. The sewage treated by the water drop chamber enters the aeration chamber for aeration treatment, which further increases the oxygen content in the water, thereby improving the transparency and water quality of the water, making the treated water quality better. The bottom is evenly laid with aeration pipes, and the aerators are evenly arranged on the aeration pipes. The oxygen-enhancing equipment transports the air in the form of bubbles to the aerators through the aeration pipes, and then enters the sewage through the aerators. At the same time, aeration The baffle plate in the aeration chamber can buffer and hinder the sewage to a certain extent, prolong the contact time between the sewage and the air, effectively increase the oxygen content in the sewage, and make the sewage in the aeration chamber in a state of vigorous stirring, thereby improving the sewage treatment efficiency;

d. The recoil device in the aeration chamber regularly scours and cleans the aeration branch pipe and aerator to prevent the aeration branch pipe and aerator from being blocked by sludge impurities in the sewage, which affects the aeration effect and aeration time of the sewage , When the recoil device is working, the recoil valve is opened, so that the recoil pump transports clean water to the aeration branch pipe and aerator through the recoil pipe, so as to flush the inside of it;

e. The sewage treated by the aeration chamber enters the sedimentation tank through the sewage pipeline;

3) Sludge flocculation and separation:

a. The sewage in the aeration chamber is transported to the sedimentation tank through the sewage conveying pipe, and then enters the flocculation chamber for flocculation treatment. The medicine box is connected with the spray rod through the medicine feeding pipe, and the flocculation agent is sprayed into the sewage through the spray rod;

b. When the flocculation agent box is putting the flocculation agent, the agitator at the bottom of the flocculation chamber is turned on, and the sewage in the flocculation chamber is stirred by the double stirring frame. The stirring motor drives the rotation of the stirring shaft through the motor shaft, and the stirring shaft drives the double stirring frame. Rotation, through the stirring action of the first stirring frame, the second stirring frame and the stirring rod on the double stirring frame, the sewage and the flocculation agent are mixed evenly, thereby improving the sedimentation efficiency of the sludge and facilitating the separation of the sludge in the later stage;

b. The sewage treated in the flocculation chamber enters the sedimentation chamber for sedimentation treatment. After the sedimentation treatment in the sedimentation chamber, the sludge in the sewage is separated from the sewage, the sludge is discharged from the sludge outlet at the bottom of the sedimentation tank, and the sewage is discharged from the sedimentation tank. The drain on the upper part of the pool is discharged into the disinfection tank for disinfection;

4) Disinfection of sewage:

The sewage in the sedimentation chamber is discharged from the drain into the disinfection tank for final disinfection treatment. The disinfection rod sprays the disinfectant into the disinfection tank, and the harmful pathogenic microorganisms in the sewage are killed by the disinfectant, so that the treated water quality is better. .

Further, in step b of step 2), when the sewage enters the water drop chamber, the rotating device is turned on, and the rotating motor drives the rotation of the fixed shaft through the motor shaft, thereby driving the rotation of the water drop plate on the fixed shaft, so that the water drops The plate not only plays the role of water drop and oxygenation for sewage, but also plays a role in stirring the sewage, which further improves the treatment effect of sewage.

Further, in step 4), the disinfectant is one or more mixtures of peracetic acid, hydrogen peroxide or peroxyglutaric acid.

Further, in step 4), when the sewage enters the disinfection tank, the stirring rod in the disinfection tank performs stirring treatment on the sewage in the disinfection tank, so that the contact between the sewage and the disinfectant is more sufficient, thereby improving the disinfection effect of the sewage , The stirring cylinder drives the rotation of the stirring shaft through the piston rod, and the stirring shaft drives the rotation of the stirring rod, thereby stirring and mixing the sewage in the disinfection tank.

Further, a water drop chamber and an aeration chamber are arranged in the aeration tank, the bottom of the water drop chamber is communicated with the bottom of the aeration chamber, a water drop device is arranged in the water drop chamber, and the water drop device includes a water drop plate, a fixed shaft and a rotating device. , the water drop plate is fixed on the fixed shaft, a water distributor is arranged above the water drop plate, the water distributor is evenly arranged with spray holes, the left end of the water distributor is connected with the water inlet of the aeration tank, and the top of the aeration chamber is set There is a water outlet, and an aeration device is arranged in the aeration chamber. The aeration device includes an aeration main pipe, a fixed pipe, an aeration branch pipe and an aerator. The upper end of the aeration main pipe extends out of the aeration chamber and is connected to the aeration equipment. The lower end of the main gas pipe is connected with the fixed pipe, and the aeration branch pipe is located between the two fixed pipes. There are baffles, the baffles are located on the right side of the water outlet, and the water drop chamber can effectively increase the contact area between the sewage and the air through the design of the internal water drop plate, thereby increasing the oxygen content of the sewage, and combined with the water distributor The design can make the contact between the sewage and the water drop plate more comprehensive, and the design of the rotating device can drive the rotation of the water drop plate, which not only increases the contact area between the sewage and the water drop plate, but also can stir the sewage, so as to make the sewage more stable. The treatment effect is better. The aeration device makes the air enter the sewage in the form of fine bubbles through the aeration branch pipe and the aerator, which not only increases the oxygen content in the sewage, but also makes the sewage in the aeration tank in a state of vigorous stirring, improving the efficiency of the aeration tank. The efficiency of sewage treatment can degrade organic pollutants in sewage.

Further, the drop plate includes a first drop plate, a second drop plate and a third drop plate, and the radii of the first drop plate, the second drop plate and the third drop plate increase sequentially from top to bottom, Water drop stones are arranged inside the first water drop plate, the second water drop plate and the third water drop plate, and the surfaces of the first water drop plate, the second water drop plate and the third water drop plate are evenly provided with water leakage holes. Through the size design of the first water drop tray, the second water drop tray and the third water drop tray, the entire water drop tray is stepped, which further improves the water drop and oxygenation effect of the sewage. The structure design is more reasonable, and the water drop stone The design further increases the contact area between water and air, making the dissolved oxygen content in the water higher, making the water drop effect of the drop chamber more obvious, and the design of the leak holes can prevent sewage from depositing in the drop tray.

Further, the rotating device includes a rotating motor and a connecting sleeve, the rotating motor is connected with the upper end of the connecting sleeve through the rotating shaft, the lower end of the connecting sleeve is connected with the fixed shaft, and the rotating motor drives the rotation of the fixed shaft, so that the sewage is discharged. The water drop effect is better, and the sewage can be stirred, so that the oxygenation effect of the sewage is better.

Further, the baffle plate includes a first baffle plate and a second baffle plate, the first baffle plate and the baffle plate are both in a "Z" shape, the first baffle plate is located on the left side of the second baffle plate, and the first baffle plate is located on the left side of the second baffle plate. The design of the shape of the first baffle plate and the second baffle plate can make the baffle effect of the baffle plate better, thereby prolonging the contact time between the sewage and the air, and ensuring the aeration and oxygenation effect of the sewage.

Further, a recoil device is also arranged in the aeration chamber. The recoil device includes a recoil pipe and a recoil valve. The recoil valve is located on the recoil pipe. The recoil pipe communicates with the aeration branch pipe through the fixed pipe, and the recoil pipe extends out The aeration chamber is connected with the recoil pump. The design of the recoil device can regularly clean the aeration pipe and aerator, so as to avoid the blockage of the aeration pipe and aerator caused by the sludge impurities in the sewage, which will affect the aeration of the sewage. Gas effect, the design of the backflush valve can make the use of the backflush device more automated.

The present invention has the following beneficial effects due to the adoption of the above-mentioned technical solutions:

The sewage first enters the filter tank, and the suspended solids and large particles of impurities in the sewage are filtered through the primary filtration chamber, and then the oil pollution of the sewage is removed through the oil pollution filter chamber, which effectively prevents the oil pollution from causing eutrophication pollution to the water body and improves the treatment of sewage. The sewage treated by the filter tank enters the aeration tank for oxygenation treatment. Through the double oxygenation treatment of the water drop chamber and the aeration chamber, the dissolved oxygen content in the sewage can be effectively increased, and the odor of the water can be effectively suppressed. , improve the transparency and water quality of the water, so that the water quality after treatment is better, the sewage after oxygenation treatment enters the sedimentation tank for flocculation and sedimentation treatment, removes the sludge in the sewage, and finally the sewage is disinfected in the disinfection tank. , remove the peculiar smell in the water, and make the quality of sewage treatment better.

The invention has simple structure and strong practicability. The lake sewage is comprehensively treated through the filter tank, the aeration tank, the sedimentation tank and the disinfection tank, so as to effectively improve the treatment quality of the sewage, and at the same time, the dissolved oxygen content in the sewage is increased through the aeration tank. , thereby improving the self-purification ability of lake water, the technical method has high working efficiency, low energy consumption loss, obvious sewage treatment effect, and effectively improves the comprehensive utilization rate.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the flow chart of the purification method of a kind of aeration oxygenation type lake water body of the present invention;

Fig. 2 is the structural representation of aeration tank in the present invention;

FIG. 3 is a schematic structural diagram of the first water drop tray in the present invention.

In the figure: 1-water drop chamber; 2-aeration chamber; 3-first water drop plate; 4-second water drop plate; 5-third water drop plate; 6-fixed shaft; 7-aeration branch pipe; 8-aerator; 9-aeration tank water inlet; 10-water outlet; 11-aeration main pipe; 12-fixed pipe; 13-spray hole; 14-leakage hole; 15-rotating motor; 16-connecting sleeve ; 17-rotating shaft; 18-first baffle; 19-second baffle; 20-backflushing pipe; 21-backflushing valve; 22-water distributor.

Detailed ways

As shown in Figure 1 to Figure 3, it is a purification method of aeration and oxygenation type lake water body of the present invention, comprising the following steps:

1) Filtration of sewage:

a. The suction pump absorbs the sewage in the lake, and then sends it to the water inlet of the filter tank through the sewage conveying pipe, and at the same time controls the amount of sewage entering the filter tank and the sewage treatment rate through the flow control valve on the water inlet of the filter tank;

b. The sewage entering the filter tank first enters the primary filtration chamber for filtration, and the suspended solids and impurity particles in the sewage are filtered and removed by the filtering effect of the filter screen;

c. The sewage treated by the primary filter chamber enters the oil pollution filter chamber, and the oil pollution in the sewage is filtered through the double filtration effect of the filler on the oil pollution filter plate and the filter membrane. At the same time, the oil pollution collection box above the oil pollution filter chamber is adsorbed The tube sucks the oil filtered on the oil filter board, so as to avoid the oil sticking to the oil filter board, affecting the oil filter efficiency of the subsequent sewage, and effectively preventing the oil pollution from causing eutrophic pollution to the water body;

d. The sewage treated by the oil filter chamber enters the aeration tank through the sewage conveying pipe;

2) Aeration treatment of sewage:

a. The sewage is transported to the water inlet of the aeration tank through the sewage pipeline, and the amount of sewage entering the aeration tank is controlled by the flow control valve on the water inlet of the aeration tank, so as to ensure the efficiency of sewage treatment and improve the sewage treatment efficiency. processing quality;

b. The sewage entering the aeration tank first enters the water drop chamber for water drop oxygenation treatment. The sewage enters the water distributor in the water drop chamber through the water inlet of the aeration tank, and passes through the nozzle holes on the water distributor. It is sprayed on the water drop pan, and the contact area between the sewage and the air is increased through the water drop plate, so that the dissolved oxygen content in the water is higher, and the odor of the water is effectively suppressed. When the sewage enters the water drop chamber, the rotating device is turned on. The rotating motor drives the rotation of the fixed shaft through the rotating shaft, thereby driving the rotation of the water drop plate on the fixed shaft, so that the water drop plate not only plays the role of water drop and oxygenation to the sewage, but also has a stirring effect on the sewage, which further improves the The treatment effect of sewage;

c. The sewage treated by the water drop chamber enters the aeration chamber for aeration treatment, which further increases the oxygen content in the water, thereby improving the transparency and water quality of the water, making the treated water quality better. The bottom is evenly laid with aeration pipes, and the aerators are evenly arranged on the aeration pipes. The oxygen-enhancing equipment transports the air in the form of bubbles to the aerators through the aeration pipes, and then enters the sewage through the aerators. At the same time, aeration The baffle plate in the aeration chamber can buffer and hinder the sewage to a certain extent, prolong the contact time between the sewage and the air, effectively increase the oxygen content in the sewage, and make the sewage in the aeration chamber in a state of vigorous stirring, thereby improving the sewage treatment efficiency;

d. The recoil device in the aeration chamber regularly scours and cleans the aeration branch pipe and aerator to prevent the aeration branch pipe and aerator from being blocked by sludge impurities in the sewage, which affects the aeration effect and aeration time of the sewage , When the recoil device is working, the recoil valve is opened, so that the recoil pump transports clean water to the aeration branch pipe and aerator through the recoil pipe, so as to flush the inside of it;

e. The sewage treated by the aeration chamber enters the sedimentation tank through the sewage pipeline;

3) Sludge flocculation and separation:

a. The sewage in the aeration chamber is transported to the sedimentation tank through the sewage conveying pipe, and then enters the flocculation chamber for flocculation treatment. The medicine box is connected with the spray rod through the medicine feeding pipe, and the flocculation agent is sprayed into the sewage through the spray rod;

b. When the flocculation agent box is putting the flocculation agent, the agitator at the bottom of the flocculation chamber is turned on, and the sewage in the flocculation chamber is stirred by the double stirring frame. The stirring motor drives the rotation of the stirring shaft through the rotating shaft, and the stirring shaft drives the double stirring frame. Rotation, through the stirring action of the first stirring frame, the second stirring frame and the stirring rod on the double stirring frame, the sewage and the flocculation agent are mixed evenly, thereby improving the sedimentation efficiency of the sludge and facilitating the separation of the sludge in the later stage;

b. The sewage treated in the flocculation chamber enters the sedimentation chamber for sedimentation treatment. After the sedimentation treatment in the sedimentation chamber, the sludge in the sewage is separated from the sewage, the sludge is discharged from the sludge outlet at the bottom of the sedimentation tank, and the sewage is discharged from the sedimentation tank. The drain on the upper part of the pool is discharged into the disinfection tank for disinfection;

4) Disinfection of sewage:

The sewage in the sedimentation chamber is discharged from the drain into the disinfection tank for final disinfection treatment. The disinfection rod sprays the disinfectant into the disinfection tank, and the harmful pathogenic microorganisms in the sewage are killed by the disinfectant, so that the treated water quality is better. , the disinfectant is one or more mixtures of peracetic acid, hydrogen peroxide or peroxyglutaric acid. When the sewage enters the disinfection tank, the stirring rod in the disinfection tank will stir the sewage in the disinfection tank. , so that the contact between the sewage and the disinfectant is more sufficient, thereby improving the disinfection effect of the sewage. The stirring cylinder drives the rotation of the stirring shaft through the piston rod, and the stirring shaft drives the rotation of the stirring rod, thereby stirring and mixing the sewage in the disinfection tank.

The invention has simple structure and strong practicability. The lake sewage is comprehensively treated through the filter tank, the aeration tank, the sedimentation tank and the disinfection tank, so as to effectively improve the treatment quality of the sewage, and at the same time, the dissolved oxygen content in the sewage is increased through the aeration tank. , thereby improving the self-purification ability of lake water, the technical method has high working efficiency, low energy consumption loss, obvious sewage treatment effect, and effectively improves the comprehensive utilization rate.

The sewage first enters the filter tank, and the suspended solids and large particles of impurities in the sewage are filtered through the primary filtration chamber, and then the oil pollution of the sewage is removed through the oil pollution filter chamber, which effectively prevents the oil pollution from causing eutrophication pollution to the water body and improves the treatment of sewage. The sewage treated by the filter tank enters the aeration tank for oxygenation treatment. Through the double oxygenation treatment of the water drop chamber and the aeration chamber, the dissolved oxygen content in the sewage can be effectively increased, and the odor of the water can be effectively suppressed. , improve the transparency and water quality of the water, so that the water quality after treatment is better, the sewage after oxygenation treatment enters the sedimentation tank for flocculation and sedimentation treatment, removes the sludge in the sewage, and finally the sewage is disinfected in the disinfection tank. , remove the peculiar smell in the water, and make the quality of sewage treatment better.

The aeration tank is provided with a water drop chamber 1 and an aeration chamber 2. The bottom of the water drop chamber 1 is communicated with the bottom of the aeration chamber 2. The water drop chamber 1 is provided with a water drop device. The shaft 6 and the rotating device, the water drop plate includes the first water drop plate 3, the second water drop plate 4 and the third water drop plate 5, the first water drop plate 3, the second water drop plate 4 and the third water drop plate The radius of 5 increases sequentially from top to bottom, the first drop plate 3, the second drop plate 4 and the third drop plate 5 are all provided with drop stones, and the first drop plate 3, the second drop plate 3 and the second drop plate 4 and the surface of the third water drop tray 5 are evenly provided with water leakage holes 14. Through the size design of the first water drop tray 3, the second water drop tray 4 and the third water drop tray 5, the entire water drop tray is stepped. , to further improve the water drop oxygenation effect of sewage, the structure design is more reasonable, the design of water drop stone further increases the contact area between water and air, making the dissolved oxygen content in the water higher, making the water drop effect of the water drop chamber 1 more effective. Obviously, the design of the water leakage hole 14 can prevent the sewage from depositing in the water drop plate, and the water drop plate is fixed on the fixed shaft 6. The rotating device includes a rotating motor 15 and a connecting sleeve 16. The rotating motor 15 is connected to the connecting sleeve through the rotating shaft 17. The upper end of the pipe 16 is connected, and the lower end of the connecting sleeve 16 is connected with the fixed shaft 6, and the rotation of the fixed shaft 6 is driven by the rotating motor 15, so that the water drop effect of the sewage is better, and the sewage can be stirred. To make the oxygenation effect of sewage better, a water distributor 22 is arranged above the water drop pan, and the water distributor 22 is evenly provided with spray holes 13. The left end of the water distributor 22 communicates with the water inlet 9 of the aeration tank.

The top of the aeration chamber 2 is provided with a water outlet 10, and an aeration device is provided in the aeration chamber 2. The aeration device includes a main aeration pipe 11, a fixed pipe 12, a branch aeration pipe 7 and an aerator 8, and the main aeration pipe 11 The upper end of the aeration chamber 2 extends out of the aeration chamber 2 to be connected to the aeration equipment, the lower end of the aeration main pipe 11 is connected to the fixed pipe 12, the aeration branch pipe 7 is located between the two fixed pipes 12, and the aeration branch pipe 7 is evenly arranged in the aeration pipe. At the bottom of the chamber 2, the aerator 8 is evenly arranged on the aeration branch pipe 7, and a baffle plate is arranged above the aerator 8, the baffle plate is located on the right side of the water outlet 10, and the baffle plate includes a first baffle plate 18 and the second baffle 19, the first baffle 18 and the baffle are in the "Z" shape, the first baffle 18 is located on the left side of the second baffle 19, the first baffle 18 and The design of the shape of the second baffle plate 19 can make the baffle plate’s baffle effect better, thereby prolonging the contact time between sewage and air, ensuring the aeration and oxygenation effect of sewage, and the water drop chamber 1 passes through the inner water drop plate. The design can effectively increase the contact area between the sewage and the air, thereby increasing the oxygen content of the sewage. Combined with the design of the water distributor 22, the contact between the sewage and the drop pan can be more comprehensive, and the design of the rotating device can drive the drop pan. The rotation of the sewage can not only increase the contact area between the sewage and the water drop plate, but also can stir the sewage, so that the sewage treatment effect is better. It can not only increase the oxygen content in the sewage, but also make the sewage in the aeration tank in a state of vigorous stirring, improve the efficiency of sewage treatment, and degrade the organic pollutants in the sewage. The recoil device includes a recoil pipe 20 and a recoil valve 21, the recoil valve 21 is located on the recoil pipe 20, the recoil pipe 20 communicates with the aeration branch pipe 7 through the fixed pipe 12, and the recoil pipe 20 extends out The aeration chamber 2 is connected with the recoil pump. The design of the recoil device can regularly clean the aeration branch pipe 7 and the aerator 8 to avoid the blockage of the aeration branch pipe 7 and the aerator 8 caused by the sludge impurities in the sewage. , which affects the aeration effect of sewage, and the design of the recoil valve 21 can make the use of the recoil device more automatic.

The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to achieve substantially the same technical effect are all included in the protection scope of the present invention.

Claims (5)

1. a purification method of aeration oxygenation type lake water body, is characterized in that: comprise the steps: 1) Filtration of sewage: a. The suction pump absorbs the sewage in the lake, and then sends it to the water inlet of the filter tank through the sewage conveying pipe, and at the same time controls the amount of sewage entering the filter tank and the sewage treatment rate through the flow control valve on the water inlet of the filter tank; b. The sewage entering the filter tank first enters the primary filtration chamber for filtration, and the suspended solids and impurity particles in the sewage are filtered and removed by the filtering effect of the filter screen; c. The sewage treated by the primary filter chamber enters the oil pollution filter chamber, and the oil pollution in the sewage is filtered through the double filtration effect of the filler on the oil pollution filter plate and the filter membrane. At the same time, the oil pollution collection box above the oil pollution filter chamber is adsorbed The tube sucks the oil filtered on the oil filter board, so as to avoid the oil sticking to the oil filter board, affecting the oil filter efficiency of the subsequent sewage, and effectively preventing the oil pollution from causing eutrophic pollution to the water body; d. The sewage treated by the oil filter chamber enters the aeration tank through the sewage conveying pipe; 2) Aeration treatment of sewage: a. The sewage is transported to the water inlet of the aeration tank through the sewage pipeline, and the amount of sewage entering the aeration tank is controlled by the flow control valve on the water inlet of the aeration tank, so as to ensure the efficiency of sewage treatment and improve the sewage treatment efficiency. To improve the quality of treatment, a water drop chamber and an aeration chamber are arranged in the aeration tank, the bottom of the water drop chamber is communicated with the bottom of the aeration chamber, a water drop device is arranged in the water drop chamber, and the water drop chamber is provided with a water drop device. The device includes a water drop plate, a fixed shaft and a rotating device. The water drop plate is fixed on the fixed shaft. The water drop plate includes a first water drop plate, a second water drop plate and a third water drop plate. The radii of the first drop plate, the second drop plate and the third drop plate increase sequentially from top to bottom, the first drop plate, the second drop plate and the third drop plate are Water drop stones are arranged inside the water pan, and water leakage holes are evenly arranged on the surfaces of the first water drop pan, the second water drop pan and the third water drop pan, and a water drop plate is arranged above the water drop pan. A water distributor, the water distributor is evenly provided with spray holes, the left end of the water distributor is communicated with the water inlet of the aeration tank, the top of the aeration chamber is provided with a water outlet, and the aeration chamber is provided with a water outlet. An aeration device is provided, and the aeration device includes an aeration main pipe, a fixed pipe, an aeration branch pipe and an aerator. The upper end of the aeration main pipe extends out of the aeration chamber and is connected to the aeration equipment. The lower end of the aeration main pipe is connected with the fixed pipe, the aeration branch pipes are located between the two fixed pipes, the aeration branch pipes are evenly arranged at the bottom of the aeration chamber, and the aerators are uniform It is arranged on the aeration branch pipe, and a baffle plate is arranged above the aerator, and the baffle plate is located on the right side of the water outlet; b. The sewage entering the aeration tank first enters the water drop chamber for water drop oxygenation treatment. The sewage enters the water distributor in the water drop chamber through the water inlet of the aeration tank, and passes through the nozzle holes on the water distributor. It is sprayed on the water drop pan, and the contact area between the sewage and the air is increased through the water drop plate, so that the dissolved oxygen content in the water is higher, and the odor of the water is effectively suppressed. When the sewage enters the water drop chamber, the rotating device is turned on. The rotating motor drives the rotation of the fixed shaft through the rotating shaft, thereby driving the rotation of the water drop plate on the fixed shaft, so that the water drop plate not only plays the role of water drop and oxygenation to the sewage, but also has a stirring effect on the sewage, which further improves the The treatment effect of sewage; c. The sewage treated by the water drop chamber enters the aeration chamber for aeration treatment, which further increases the oxygen content in the water, thereby improving the transparency and water quality of the water, making the treated water quality better. The bottom is evenly laid with aeration pipes, and the aerators are evenly arranged on the aeration pipes. The oxygen-enhancing equipment transports the air in the form of bubbles to the aerators through the aeration pipes, and then enters the sewage through the aerators. At the same time, aeration The baffle plate in the aeration chamber can buffer and hinder the sewage to a certain extent, prolong the contact time between the sewage and the air, effectively increase the oxygen content in the sewage, and make the sewage in the aeration chamber in a state of vigorous stirring, thereby improving the sewage treatment efficiency; d. The recoil device in the aeration chamber regularly scours and cleans the aeration branch pipe and aerator to prevent the aeration branch pipe and aerator from being blocked by sludge impurities in the sewage, which affects the aeration effect and aeration time of the sewage , When the recoil device is working, the recoil valve is opened, so that the recoil pump transports clean water to the aeration branch pipe and aerator through the recoil pipe, so as to flush the inside of it; e. The sewage treated by the aeration chamber enters the sedimentation tank through the sewage pipeline; 3) Sludge flocculation and separation: a. The sewage in the aeration chamber is transported to the sedimentation tank through the sewage conveying pipe, and firstly enters the flocculation chamber for flocculation treatment. When the sewage enters the flocculation chamber, the flocculation reagent box on the side wall of the flocculation chamber The switch valve is opened, the flocculation agent box is connected with the spray rod through the drug delivery pipe, and the flocculation agent is sprayed into the sewage through the spray rod; b. When the flocculation agent box is putting the flocculation agent, the agitator at the bottom of the flocculation chamber is turned on, and the sewage in the flocculation chamber is stirred by the double stirring frame. The stirring motor drives the rotation of the stirring shaft through the motor shaft, and the stirring shaft drives the double stirring frame. Rotation, through the stirring action of the first stirring frame, the second stirring frame and the stirring rod on the double stirring frame, the sewage and the flocculation agent are mixed evenly, thereby improving the sedimentation efficiency of the sludge and facilitating the separation of the sludge in the later stage; c. The sewage treated in the flocculation chamber enters the sedimentation chamber for sedimentation treatment. After the sedimentation treatment in the sedimentation chamber, the sludge in the sewage is separated from the sewage, the sludge is discharged from the sludge outlet at the bottom of the sedimentation tank, and the sewage is discharged from the sedimentation tank. The drain on the upper part of the pool is discharged into the disinfection tank for disinfection; 4) Disinfection of sewage: The sewage in the sedimentation chamber is discharged from the drain into the disinfection tank for final disinfection treatment. The disinfection rod sprays the disinfectant into the disinfection tank, and the harmful pathogenic microorganisms in the sewage are killed by the disinfectant, so that the treated water quality is better. , When the sewage enters the disinfection tank, the stirring rod in the disinfection tank stirs the sewage in the disinfection tank, so that the contact between the sewage and the disinfectant is more sufficient, thereby improving the disinfection effect of the sewage, and the stirring cylinder drives the stirring through the piston rod. When the shaft rotates, the stirring shaft drives the rotation of the stirring rod, thereby stirring and mixing the sewage in the disinfection tank. 2. the purification method of a kind of aeration oxygenation type lake water body according to claim 1, is characterized in that: in described step 4), described disinfectant is peracetic acid, hydrogen peroxide or peroxypentane A mixture of one or more of the diacids. 3 . The method for purifying an aerated and oxygenated lake water body according to claim 1 , wherein the rotating device comprises a rotating motor and a connecting sleeve, and the rotating motor is connected to the connecting sleeve through a rotating shaft. 4 . The upper ends of the pipes are connected, and the lower ends of the connecting sleeves are connected with the fixed shaft. 4 . The method for purifying an aerated and oxygenated lake water body according to claim 1 , wherein the baffle plate comprises a first baffle plate and a second baffle plate, and the first baffle plate Both the plate and the baffle have a "Z" shape, and the first baffle is located on the left side of the second baffle. 5 . The method for purifying an aerated and oxygenated lake water body according to claim 1 , wherein the aeration chamber is further provided with a recoil device, and the recoil device comprises a recoil pipe and a recoil. 6 . The recoil valve is located on the recoil pipe, the recoil pipe communicates with the aeration branch pipe through the fixed pipe, and the recoil pipe extends out of the aeration chamber and is in phase with the recoil pump. connect.

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