KR102595488B1 - A three-effect high-level treatment device and method for sludge screen cutting effect, underwater upper and lower layer stirring effect, and oxidizing hole customized circulation loop control effect - Google Patents

Abstract

In the present invention, the existing oxidation hole sewage advanced treatment device is manually sensed and operated by a person, and induces a natural sewage circulation structure, anoxic denitrification reaction, and aerobic nitrification reaction to perform advanced treatment, so the fluid inflow of sewage is possible. There are problems such as the lack of automatic control according to water quality conditions, slow response speed, low nitrification, and low oxidation hole treatment efficiency, and because large chunks of sludge are still floating in the water without being cut, digestive microorganisms and Upon contact, the specific surface area of the substrate that serves as food for digestion microorganisms decreases, preventing sludge decomposition, the problem of low microbial activation rate due to the microbial contact atmosphere, and sludge due to CO2 gas and N2 gas generated from the sludge in the final sedimentation tank. In order to improve the problem of the swelling phenomenon, in addition to the anaerobic tank (10), the oxidation port (20), and the final sedimentation tank (30), a double-arm spread type sludge screen cutting module (100), a buoy-type upper layer agitation module (200), and a propeller-type lower layer agitation module. (300), an underwater slide-type water quality detection sensor module (400), and a smart control unit (500) are further included to measure water quality in real time, determine the amount of sewage inflow according to the water quality, and configure a buoy-type upper stirring module. Among the elements, the injection speed and injection time of the underwater upper layer agitator, the rotation speed and rotation time of the propeller drive motor among the components of the propeller-type lower layer agitation module, and the driving cycle of the final sedimentation tank are adjusted to control the dissolved oxygen concentration, MLSS concentration, The returned sludge rate can be automatically controlled according to the standard setting value, improving the oxidation hole advanced treatment efficiency by 80% compared to the existing one, and the flow rate of the lower layer of sewage generated from the propeller-type lower layer agitation module and the double-arm spread type sludge screen cutting module. Due to the sludge screen cutting effect through the screen network, large chunks of sludge floating in the water are cut and divided into small pieces, increasing the specific surface area of the sludge, which becomes the food (substrate) for digestive microorganisms. Sludge decomposition can be facilitated, and as a result, the activation rate of the microbial contact atmosphere can be increased by 1.5 to 2 times compared to the existing one, and under the control of the smart control unit, loop rotation through the anoxic oxidation hole and loop rotation through the aerobic oxidation hole are repeated for a long time. It can be circulated, creating an atmosphere with a long residence time for microbial sludge, eliminating odor, and improving nitrification of ammonia by 80%. Due to CO2 gas and N2 gas generated from the sludge, the sludge volume in the final sedimentation tank is reduced. A three-effect type new oxidation cone advanced treatment device consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation cone customized circulation loop control effect that can reduce the sludge swelling phenomenon that causes sludge to overflow the wear by less than 70% compared to the existing one. The purpose is to provide a method.

Description

A three-effect high-level treatment device and method for sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect {A three-effect high-level treatment device and method for sludge screen cutting effect, underwater upper and lower layer stirring effect, and oxidizing hole customized circulation loop control effect}

The present invention relates to a new three-effect type new oxidation hole advanced treatment device and method that has been improved and improved to have a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect in addition to the existing oxidation hole advanced treatment device.

In general, sewage treatment is designed with a focus on treating organic matter (BOD), but with current industrial development and population growth, discharge of various pollutants, and the inflow of nitrogen and phosphorus of nutrients, which are the main pollutants of rivers and lakes, are increasing. Pollution of rivers and lakes is serious, and accordingly, revised laws regulating nitrogen and phosphorus of the above nutrients are being implemented, and advanced sewage treatment technology that can treat nitrogen and phosphorus more efficiently is required.

The Oxidation Ditch method, one of the advanced sewage treatment technologies, consists of a circular or oval flow rate and a mechanical aeration device.

Oxidation pits are generally operated in a long-aeration mode with a long residence time and a long solids retention time (SRT).

As such, the conventional oxidation hole advanced sewage treatment device is designed to treat inflowed sewage only in an aerobic state, so there is a problem in that nitrogen and phosphorus are not treated because there are no anaerobic conditions that can achieve denitrification.

In addition, large-scale equipment is essential and requires enormous costs, which not only reduces economic feasibility, but also makes it difficult to expect significant effects in terms of treatment efficiency and stability. Additionally, there is a problem of causing water pollution due to the use of chemicals, especially when using conventional oxidation tubes. The method had a problem in that it was difficult to modify it into a treatment method that could remove nitrogen and phosphorus because the structure of the oxidation hole was unique.

In order to solve these problems, the present applicant applied for and registered Patent Registration No. 10-0415831 (“Sewage treatment system using an aerator”) and Patent Registration No. 10-1539290 (“Advanced sewage treatment system using an aerator and advanced sewage treatment system.”) Treatment method") has been proposed, but this is a manual method, in which water quality measurement sensors are individually checked by immersion in the anaerobic tank, anoxic oxidation tank, aerobic oxidation tank, and final sedimentation tank using human power, and the sewage inflow and sewage discharge volume are manually adjusted accordingly. Afterwards, because the advanced treatment was performed while inducing the natural sewage circulation structure, anoxic denitrification reaction, and aerobic nitrification reaction, the nitrification reaction was low, which led to the problem of low advanced treatment efficiency in the oxidation zone.

In addition, since large chunks of sludge are still floating in the water without being cut, when they come into contact with digestive microorganisms, the specific surface area of the substrate that serves as food for the digestive microorganisms decreases, preventing sludge decomposition, and microorganisms depending on the microbial contact atmosphere. A problem arose with the activation rate dropping.

And, above all, due to the occurrence of filamentous organisms (filamentous fungi) that cause sludge swelling, large lumps of sludge, and CO2 gas and N2 gas generated from the sludge, the sludge volume swells, resulting in a final sedimentation tank that is small compared to the size of the treatment plant or insufficient return. The sludge ratio caused a problem where the sludge exceeded the weir in the final sedimentation tank.

1. Patent Registration No. 10-0415831 2. Patent Registration No. 10-1539290

In order to solve the above problems, in the present invention, the water quality is measured in real time, and then according to the water quality conditions, the sewage inflow, the injection speed and injection time of the underwater upper agitator among the components of the buoy-type upper agitation module, and the propeller-type lower agitation Among the components of the module, the rotation speed and rotation time of the propeller drive motor, and the driving cycle of the final sedimentation tank can be adjusted to automatically control the dissolved oxygen concentration, MLSS concentration, and returned sludge rate according to the standard settings, and the propeller-type lower layer. Due to the flow rate of the lower layer of sewage generated in the stirring module and the sludge screen cutting effect through the screen network of the double-arm sludge screen cutting module, large lumps of sludge floating in the water are cut and divided into small pieces to serve as food for digestive microorganisms ( Sludge decomposition can be facilitated by increasing the specific surface area of the sludge that becomes the substrate, and under the control of the smart control unit, loop rotation through the anoxic oxidation hole and loop rotation through the aerobic oxidation hole are repeated for a long time. The purpose is to provide a three-effect type new oxidation hole advanced treatment device and method consisting of sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect.

In order to achieve the above object, the three-effect type new oxidation hole advanced treatment device consisting of sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention is

An anaerobic tank (10) that maintains an anaerobic state by mixing the sewage flowing in through the sewage inlet pipe and the microbial sludge returned from the final sedimentation tank at the rear end with a blender;

One side is connected to the anaerobic tank and pipe, and the other side is connected to the final sedimentation tank and sewage treatment pipe, and the middle partition wall makes two tanks of four series each, with an anoxic oxidation port (21) and an aerobic oxidation port (22) for inflow. An oxidation port (20) that processes sewage in anoxic and aerobic conditions,

In the oxidation pit advanced treatment device consisting of a final settling tank (30) for separating solid and liquid from the sewage treated by the oxidation pit,

The oxidation hole advanced processing device is

A two-arm spread type sludge screen cutting module (100) is formed in a plurality by spreading both arms in an upright structure on the anoxic oxidation port and the aerobic oxidation port, and cuts the sludge screen by passing the sludge contained in the sewage flowing in with the force of the flowing sewage through the screen net. )class,

It is located on one side of the front or rear end of the double-arm expansion type sludge screen cutting module, and sludge is cut through the sludge screen through the double-arm expansion type sludge screen cutting module, forming a channel and flow velocity flowing in one direction while floating in the flow rate. and a buoy-type upper layer agitation module (200) that supplies air to the sewage side to agitate the sewage and microbial sludge in the upper layer of the water at the same time as deep aeration,

A propeller-type lower layer agitation module (300) is formed in the sewage water of the anoxic oxidation zone and the aerobic oxidation zone and is driven according to the control signal of the smart control unit, forming a waterway and flow rate flowing in one direction, while agitating the sewage and microbial sludge in the lower layer of the water. )class,

An underwater slide-type water quality detection sensor that is located on one side of the buoy-type upper stirring module or on one side of the final sedimentation tank and slides down into the sewage water to measure nitrate, ammonia, pH (hydrogen ion concentration), temperature, water depth, and pressure of the current sewage water. module 400,

By controlling the overall operation of the anaerobic tank, oxidation tank, final sedimentation tank, buoy-type upper layer agitation module, propeller-type lower layer agitation module, and underwater slide-type water quality detection sensor module, water quality is measured in real time, and then buoy-type upper layer agitation is performed according to the water quality conditions. Among the components of the module, the injection speed and injection time of the underwater upper layer agitator, the rotation speed and rotation time of the propeller drive motor among the components of the propeller-type lower layer agitation module, and the driving cycle of the final sedimentation tank are adjusted to control the dissolved oxygen concentration, This is achieved by further including a smart control unit 500 that automatically controls the MLSS concentration and returned sludge rate according to standard settings.

In addition, the three-effect type new oxidation hole advanced treatment method consisting of the sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention is

A step (S10) of forming a double-arm spread type sludge screen cutting module by spreading it in an upright structure with both arms on the anoxic oxidation zone and the aerobic oxidation zone and combining them in a slide manner;

The sewage inflow pump is driven according to the control signal from the smart control unit, allowing sewage to flow into the anaerobic tank through the sewage inlet pipe, and the anaerobic tank transfer pump is driven according to the control signal from the smart control unit, allowing the final sedimentation tank to flow through the return sludge transfer pipe. A step (S20) of allowing the microbial sludge settled at the bottom to flow into the anaerobic tank,

A step (S30) in which the mixed sewage and sludge from the anaerobic tank is transferred to the anoxic oxidation port,

In order to induce denitrification, the double-arm spread type sludge screen cutting module installed in the anoxic oxidation hole is formed in a plurality of upright structures with both arms spread over the anoxic oxidation hole and the aerobic oxidation hole, and the sludge contained in the inflowing sewage along with the power of the flowing sewage is screened. A step of cutting the sludge screen by passing it through (S40),

In order to induce denitrification, the propeller-type lower layer agitation module installed in the anoxic oxidation port is driven according to the control signal from the smart control unit, forming a water channel and flow rate flowing in one direction, and agitating the sewage and microbial sludge in the lower layer of the water (S40). and,

In accordance with the control signal from the smart control unit, the underwater slide-type water quality detection sensor module is driven to sense the sludge (MLSS) concentration of the anoxic oxidation zone, and then the buoy maintains the sludge (MLSS) concentration at the standard set value through denitrification of the anoxic oxidation zone. A step (S50) of driving and controlling the upper layer stirring module and the propeller type lower layer stirring module,

The denitrified sewage is allowed to flow into the aerobic oxidation hole through the inflow baffle, and the inflow sewage is disposed inside the aerobic oxidation hole according to the control signal from the smart control unit. A step (S60) of driving (200) to control the air and sewage to come into contact and maintain an aerobic state;

A step (S70) of detaching the double-arm spread type sludge screen cutting module (100) from the anoxic oxidation port and the aerobic oxidation port,

A step (S80) of returning the sewage flowing into the aerobic oxidation port to the inorganic oxidation port by driving the internal return pump according to the control signal from the smart control unit;

Sewage that has been highly treated in the aerobic oxidation hole is sent to the final sedimentation tank through a sewage treatment pipe according to a control signal from the smart control unit (S90);

The sewage delivered to the final settling tank according to the control signal from the smart control unit is separated into solid and liquid between clear water and sludge in the final settling tank. The clear water is discharged and the sludge is anaerobic through the return sludge transfer pipe by the settling tank return pump. This is achieved by returning the surplus sludge to the tank and transferring it to the thickening tank through a surplus sludge transfer pipe by a surplus sludge pump and dehydrating it (S100).

As described above, in the present invention

First, after measuring the water quality in real time, according to the water quality conditions, the amount of sewage inflow, the injection speed and injection time of the underwater upper layer agitator among the components of the buoy-type upper agitation module, and the propeller drive motor among the components of the propeller-type lower agitation module. By adjusting the rotation speed, rotation time, and driving cycle of the final sedimentation tank, the dissolved oxygen concentration, MLSS concentration, and returned sludge rate can be automatically controlled to match the standard setting values, thereby increasing the oxidation hole treatment efficiency compared to the existing one. It can be improved by 80%.

Second, due to the flow rate of the lower layer of sewage generated from the propeller-type lower layer agitation module and the sludge screen cutting effect through the screen network of the double-arm sludge screen cutting module, large lumps of sludge floating in the water are cut, divided into small pieces, and digested. Sludge decomposition can be facilitated by increasing the specific surface area of sludge, which serves as food (substrate) for microorganisms.

Third, the PGA (Poℓy-γ-gℓutamic acid) of the PGA-type screen network passes through the screen network to achieve the effect of attaching or adding carboxyl group anions to the surface of the sludge screen cut sludge, thereby attaching or adding carboxyl group anions. The added sludge can be easily adsorbed with cationic microorganisms, and as a result, the activation rate of the microbial contact atmosphere can be increased by 1.5 to 2 times compared to the existing one.

Fourth, under the control of the smart control unit, the flow rate of the anoxic oxidation zone is rotated in one direction at a speed of 0.25 to 0.35 m/sec through the driving of the propeller-type lower layer agitation module, and the sewage of the aerobic oxidation zone is reduced to 0.25 m/sec through the operation of the buoy-type upper agitation module. After rotating the loop in one direction at a speed of ~0.35m/sec, an atmosphere is created to have a microbial sludge residence time of 24 to 60 hours, so there is no odor, nitrification of ammonia can be improved by 80%, and the sludge generated Due to CO2 gas and N2 gas, the sludge volume in the final sedimentation tank swells, and the sludge swelling phenomenon, in which the sludge exceeds the wear, can be reduced to less than 70% compared to before.

Figure 1 is a configuration diagram showing the components of a three-effect type new oxidation hole advanced treatment device (1) consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention;
Figure 2 is an embodiment showing the components of a three-effect type new oxidation hole advanced treatment device (1) consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention;
Figure 3 is an exploded perspective view showing the components of the double-arm expandable sludge screen cutting module according to the present invention;
Figure 4 is an embodiment showing the attachment or addition of anions of the carboxyl group to the surface of the sludge while the sludge passing through the PGA-type screen network of the double-arm spread type sludge screen cutting module according to the present invention is cut into the sludge screen.
Figure 5 is an embodiment showing that the support frame body according to the present invention is formed by integrating reinforcing bars for the support frame body, concrete pouring, and anchor bolts on the bottom surface of the oxidation hole;
Figure 6 is a perspective view showing the components of the buoy-type upper stirring module according to the present invention;
Figure 7 is an exploded perspective view showing the components of the venturi-type four-channel air injection ejector unit according to the present invention;
Figure 8 is an embodiment showing the venturi-type 4-channel air injection ejector unit according to the present invention performing 4-channel injection;
Figure 9 is a perspective view showing the components of the propeller-type lower layer stirring module according to the present invention;
Figure 10 is a configuration diagram showing the components of the underwater slide-type water quality detection sensor module according to the present invention;
Figure 11 is an embodiment showing that the underwater slide-type water quality detection sensor module according to the present invention slides down into the sewage water and the multi-sensor unit is located in the sewage water;
Figure 12 is an embodiment showing the components of the multi-sensor unit according to the present invention;
Figure 13 is a circuit diagram showing the components of the smart control unit according to the present invention;
14 is a configuration diagram showing the components of the smart control unit according to the present invention;
Figure 15 shows that the sewage inlet pump is driven according to the control signal from the smart control unit according to the present invention, so that sewage flows into the anaerobic tank through the sewage inlet pipe, and the anaerobic tank transfer pump is driven according to the control signal from the smart control unit to transport the returned sludge. An embodiment showing that microbial sludge settled at the bottom of the final sedimentation tank flows into the anaerobic tank through a transfer pipe,
Figure 16 shows a plurality of arm-spreading sludge screen cutting modules according to the present invention by spreading them in an upright structure with both arms on one side upstream and one side downstream of the anoxic oxidation port and the aerobic oxidation port, and sludge contained in the sewage flowing in with the power of the flowing sewage. An embodiment showing sludge screen cutting by passing it through a screen net,
Figure 17 shows that the double-arm spread type sludge screen cutting module according to the present invention is desorbed from the anoxic oxidation port and the aerobic oxidation port, and the sewage discharged to the final sedimentation tank according to the control signal of the smart control unit is solid-liquid separation of clear water and sludge in the final sedimentation tank. This is done, the clear water is discharged, the sludge is returned to the anaerobic tank through the return sludge transfer pipe by the settling tank return pump, and the excess sludge is transferred to the thickening tank through the surplus sludge transfer pipe by the surplus sludge pump to be dewatered. In one embodiment,
Figure 18 is a flowchart showing the specific operation process of the three-effect type new oxidation hole advanced treatment method consisting of the sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention.

First, the three-effect type new oxidation hole advanced processing device described in the present invention is an improvement and improvement of the existing oxidation hole advanced processing device,

First, due to the flow rate of the lower layer of sewage generated from the propeller-type lower layer agitation module and the sludge screen cutting effect through the screen network of the double-arm sludge screen cutting module, large lumps of sludge floating in the water are cut, divided into small pieces, and digested. Sludge decomposition can be facilitated by increasing the specific surface area of sludge, which becomes the food (substrate) for microorganisms,

Second, after measuring the water quality in real time, the amount of sewage inflow according to the water quality, the injection speed and injection time of the underwater upper layer agitator among the components of the buoy-type upper agitation module, and the propeller drive motor among the components of the propeller-type lower agitation module By adjusting the rotation speed, rotation time, and driving cycle of the final sedimentation tank, the dissolved oxygen concentration, MLSS concentration, and returned sludge rate are automatically controlled to match the standard settings,

Third, the PGA (Poℓy-γ-gℓutamic acid) of the PGA-type screen network passes through the screen network to achieve the effect of attaching or adding carboxyl group anions to the surface of the sludge screen cut sludge, thereby attaching or adding carboxyl group anions. The added sludge was made to adsorb well with cationic microorganisms,

Fourth, under the control of the smart control unit, the flow rate of the anoxic oxidation zone is rotated in one direction at a speed of 0.25 to 0.35 m/sec through the driving of the propeller-type lower layer agitation module, and the sewage of the aerobic oxidation zone is reduced to 0.25 m/sec through the operation of the buoy-type upper agitation module. There is a big difference from the existing oxidation pit advanced treatment equipment in that it rotates the loop in one direction at a speed of ∼0.35 m/sec and then creates an atmosphere so that the microbial sludge has a retention time of 24 to 60 hours.

Hereinafter, a preferred embodiment according to the present invention will be described with accompanying drawings.

Figure 1 relates to a configuration diagram showing the components of a three-effect type new oxidation hole advanced treatment device (1) consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention. 2 is an embodiment diagram showing the components of a three-effect type new oxidation hole advanced treatment device (1) consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention. In addition to the anaerobic tank (10), oxidation tank (20), and final sedimentation tank (30), a double-arm spread type sludge screen cutting module (100), a buoy type upper layer stirring module (200), a propeller type lower layer stirring module (300), and an underwater slide type. It is comprised of a water quality detection sensor module 400 and a smart control unit 500.

First, the anaerobic tank 10 according to the present invention will be described.

The anaerobic tank 10 serves to maintain an anaerobic state by mixing the sewage flowing in through the sewage inlet pipe and the microbial sludge returned from the final sedimentation tank with a mixer.

It consists of a sewage inlet pump 11 that introduces sewage into the anaerobic tank, and a mixer 12 that mixes the inflow sewage and microbial sludge.

Next, the oxidation sphere 20 according to the present invention will be described.

One side of the oxidation port (20) is connected to an anaerobic tank and a pipe, and the other side is connected to a final sedimentation tank and a sewage treatment pipe. The oxidation port (20) is divided into two groups of four series, one group for each two series by an intermediate partition wall, and an anoxic oxidation port (21) and an aerobic oxidation port. It is composed of (22) and plays a role in treating incoming sewage in anoxic and aerobic conditions.

It is divided into anoxic oxidation zone and aerobic oxidation zone with a total of 4 series, 2 tanks each, by an intermediate partition wall.

A sewage inflow pipe is connected to one side of the oxidation pit, and a sewage treatment pipe is connected to the other side, and the sewage treatment pipe joins the anoxic oxidation pit and the aerobic oxidation pit and is connected to the final sedimentation tank (30).

The anoxic oxidation port 21 consists of two series that communicate with each other continuously.

An inflow baffle (23) is formed on the partition wall between the anoxic oxidation hole (21) and the aerobic oxidation hole (22).

Here, the inflow baffle 23 has a propeller structure, and is naturally rotated by the flow rate flowing from the anoxic oxidation port toward the aerobic oxidation port, thereby sending sewage from the anoxic oxidation port toward the aerobic oxidation port.

And the aerobic oxidation port 22 is configured with an internal return pump 22a at a position close to the inflow baffle. Here, the internal return pump 22a is driven according to a control signal from the smart control unit and serves to return the sewage in the aerobic oxidation zone to the anoxic oxidation zone.

In the overall oxidation tank advanced treatment system structure, the anaerobic tank located in front of the oxidation tank includes a mixer inside, and the return sludge transfer pipe 33 branched from the sludge discharge pipe of the final settling tank is connected to the anaerobic tank.

Next, the final settling tank 30 according to the present invention will be described.

The final settling tank 30 serves to separate solid and liquid from the sewage treated by the oxidation port.

Here, the sludge discharged to the lower part of the final settling tank is configured to join the sewage inlet pipe of the oxidation port through the sludge discharge pipe and the return sludge transfer pipe 33, and the excess sludge is transferred to the thickening tank through the surplus sludge transfer pipe 34. It is dehydrated and the Cheongdeung water is configured to be discharged.

And, an anaerobic tank transfer pump 31 and a surplus sludge pump 32 are configured.

Next, the double-arm spread type sludge screen cutting module 100 according to the present invention will be described.

The double-arm spread type sludge screen cutting module 100 is formed in a plurality by spreading both arms in an upright structure on the anoxic oxidation port and the aerobic oxidation port, and passes the sludge contained in the incoming sewage along with the force of the flowing sewage through the screen network to form a sludge screen. It plays a cutting role.

As shown in FIG. 3, it is composed of a slide-type support frame 110, a screen net support bar 120, and a PGA-type screen net 130.

First, the slide-type support frame 110 according to the present invention will be described.

The slide-type support frame 110 is made up of two sets, and is formed in an upright straight shape while being attached and fixed to the bottom surface of the oxidation hole, so that the screen mesh support bar is not deviated to the outside while guiding the slide-insertion along the rail groove. It serves to elastically support the screen mesh support bar.

It consists of a support frame body 111 and guide rail wings 112.

The support frame body 111 is formed along the longitudinal direction and serves to support each device. And, a straight fixed support 111a is formed integrally on one side of the lower end. Here, the straight fixed support 111a is first buried in concrete and secondarily supported by anchor bolts.

It is attached and fixed to the bottom of the oxidation hole.

That is, as shown in Figure 5, after digging the bottom of the oxidation hole to a certain depth, reinforcing bars for the support frame body are placed, and the support frame body is placed on the placed reinforcing bars for the support frame body. Fix it.

Then, concrete is poured on the bracket body location and first fixed with concrete.

Next, anchor bolts are driven into the bottom of the oxidation hole to secure the straight fixed support of the support frame body once more.

The support frame body is formed integrally with a guide rail wing on one side.

In this way, the support frame body according to the present invention is firmly attached and fixed to the bottom surface of the oxidation hole through reinforcing bars, concrete pouring, and anchor bolts, so that it does not break or fall even under the force of flowing sewage and the collision of sludge even after long-term advanced treatment. Location can be created.

The guide rail wing portion 112 is formed in the shape of a wing, and serves to guide the screen net support bar to be slidably inserted along the guide rail groove and to support it so that it does not escape to the outside.

Since the screen mesh support bar is a rod-shaped structure, it is formed with a corresponding rod-shaped structure.

Here, the shape of the guide rail wing is formed in various shapes such as triangle, square, and circular depending on the purpose and shape of the guide rail.

Second, the screen mesh support bar 120 according to the present invention will be described.

The screen net support bar 120 elastically supports the PGA-type screen net in both directions and is slidably coupled to the slide-type support frame.

It is formed in a rod shape along the longitudinal direction. And, it is formed into various shapes depending on the purpose of use and form.

And, the screen mesh support bar is formed by selecting one of metal alloy and synthetic plastic.

Third, the PGA-type screen network 130 according to the present invention will be described.

The PGA-type screen network 130 is a screen network with a thickness of 0.05 mm to 0.5 mm and a size of 1 cm to 10 cm by overlapping high carbon steel wires coated with PGA (poly-γ-glutamic acid) in the horizontal and vertical directions. After forming, it serves to cut the sludge screen by passing the sludge contained in the incoming sewage through the screen net with the force of the flowing sewage.

It is formed in a square structure and is formed as an integrated or detachable structure with the screen mesh support bar.

The PGA (Poly-γ-glutamic acid) is a new material and is an anionic organic polymer with a molecular weight of several million daltons (Da) produced by fermenting plants (soybeans).

The molecular structure consists of an anion of the carboxyl group as shown in Formula 1, and the anion of the carboxyl group is attached or added to the surface of the sludge that passes through the screen net and is cut into the sludge screen, resulting in the effect of improving the adsorption of cationic microorganisms in the sludge. There is a number.

At this time, since it may be difficult to adsorb cationic microorganisms in sludge with a one-time installation, the probability of attaching or adding anions of the carboxyl group can be increased by forming a plurality of double-arm sludge screen cutting modules in the oxidation port.

As a result, the sludge to which anions of the carboxyl group are attached or added can be easily adsorbed with cationic microorganisms, and the activation rate of the microbial contact atmosphere can be increased to 1.5 to 2 times compared to the existing one.

As shown in Figure 4, the sludge screen cutting is a high-carbon steel wire with a thickness of 0.05 mm to 0.5 mm and coated with PGA (Poly-γ-glutamic acid), which maintains elasticity and waits for flowing sewage. This refers to a phenomenon in which sludge contained in sewage flowing together is cut or shaved by a screen network with a size of 1 cm to 10 cm due to the force of. In other words, it has the same function as the cutting blade effect.

The screen net having a size of 1 cm to 10 cm is regularly formed as a single net of a certain size, or is formed as a mixed net in which various sizes of 1 cm to 10 cm are mixed.

In this way, the double-armed sludge screen cutting module 100, which consists of a slide-type support frame 110, a screen net support bar 120, and a PGA-type screen net 130, is installed on the anoxic oxidation hole and the aerobic oxidation hole using a slide attachment method. The sludge screen is cut, and after 3 to 5 hours of the total advanced treatment time, it is desorbed from the anoxic oxidation hole and the aerobic oxidation hole using a slide-type desorption method using a crane.

The reason is that the sludge, which is finely cut to a certain size, comes into contact with microorganisms and floats along the force of the flowing sewage, becoming food for digestive microorganisms, making sludge decomposition easier, and PGA (Poly-γ) on the PGA-type screen net. -glutamic acid) coating solution is sprayed to increase the efficiency of attachment or addition of anions to the carboxyl group.

Next, the buoy-type upper stirring module 200 according to the present invention will be described.

The buoy-type upper layer agitation module 200 is located on one side of the front end or one side of the rear end of the double-arm spread type sludge screen cutting module, and forms a waterway and flow velocity flowing in one direction while floating on the flow rate, and the double-arm spread type sludge It supplies air to the sludge screen-cut sludge and sewage through the screen cutting module to perform deep aeration and agitate the sewage and microbial sludge in the upper layer of the water.

As shown in Figure 6, it consists of a buoy body 210 and an upper underwater agitator 220.

The buoy body 210 is formed in the shape of a buoy and serves to support each device while remaining floating in the flow rate.

It consists of a cylindrical drum-shaped buoy, and two buoys form a set, forming a total of 2 sets or 4 sets.

As such, in the present invention, since the buoy body is floating in the flow, it can be moved to any anoxic oxidation hole or oxic tank oxidation hole that requires upper underwater agitation, and can be positioned at a specific location through a separate mounting means.

The upper underwater agitator 220 is fixed to one side of the buoy body and is formed in a diagonal direction in the upper underwater layer, supplying air to the sludge and sewage in the upper underwater layer to agitate the sewage and microbial sludge in the upper underwater layer at the same time as deep aeration. It plays a role.

It consists of an air supply blower (221), an air inlet (222), and a venturi-type four-channel air injection ejector unit (223).

The air supply blower 221 serves to suck in external air and supply the air to the venturi-type 4-channel air injection ejector unit through an automatic air valve.

The air inlet 222 serves to deliver air supplied from the air supply blower to the venturi-type 4-channel air injection ejector unit.

This is where a Venturi tube is formed in the internal space.

The venturi-type four-channel air injection ejector unit 223 serves to spray air onto the sludge and sewage in the upper layer of the water using air supplied through an air supply blower.

It consists of an ejector body (223a), a middle-type venturi nozzle part (223b), and a 4-channel venturi nozzle part (223c).

The ejector body 223a serves to protect and support each device from external pressure.

It is formed in the shape of a long rod with a longitudinal direction.

And, as shown in Figure 7, an air inlet is connected to the end of the head of the ejector body, a middle-type venturi nozzle part is formed in the direction of the inner space at the bottom of the head, and a 4-channel venturi nozzle part is formed at the bottom of the middle-type venturi nozzle part. do.

The middle-type venturi nozzle part (223b) is formed in a venturi structure along the longitudinal direction in the internal space at the bottom of the head of the ejector body, and speeds up the air supplied through the air supply blower by the venturi effect, thereby increasing the speed of the air supplied through the air supply blower into a 4-channel venturi nozzle part. It plays a role in conveying.

The 4-channel venturi nozzle unit 223c is integrally connected to the bottom of the middle-type venturi nozzle unit and is formed as a nozzle with 4 venturi pipes, dividing the air delivered from the middle-type venturi nozzle unit into 4 venturi pipes to create 4 nozzles. It serves to spray in a 4-channel manner.

In this way, the venturi-type 4-channel air injection ejector unit 223 is composed of the ejector body 223a, the middle-type venturi nozzle unit 223b, and the 4-channel venturi nozzle unit 223c, so that the sludge in the upper layer of water and the sewage are directed in one direction. Instead, air can be supplied in a 4-way, 4-channel method, allowing even deep areas to be abandoned, and the agitation rate of sewage and microbial sludge in the upper part of the water can be improved by 1.5 to 2 times compared to the existing system.

Next, the propeller-type lower layer stirring module 300 according to the present invention will be described.

The propeller-type lower layer agitation module 300 is formed in the sewage water of the anoxic oxidation hole and the aerobic oxidation hole, and is driven according to the control signal of the smart control unit, forming a water channel and flow rate flowing in one direction, and mixing sewage and microbial sludge in the water. It serves to agitate the lower layer.

As shown in Figure 9, it is composed of a straight propeller support part 310, a propeller driving motor 320, and a propeller part 330.

The straight propeller support part 310 is formed in a straight shape and serves to support the propeller drive motor and the propeller unit to be positioned at a specific position in the water.

The propeller drive motor 320 is supported by a straight propeller support portion and serves to transmit rotational power toward the propeller portion.

It is driven according to control signals from the smart control unit.

The propeller unit 330 is formed in the sewage water of the anoxic oxidation hole and the aerobic oxidation hole, and serves to agitate the sewage and microbial sludge in the lower layer of the water while receiving rotational force from the propeller drive motor to form a waterway and flow rate flowing in one direction. do.

Next, the underwater slide-type water quality detection sensor module 400 according to the present invention will be described.

The underwater slide-type water quality detection sensor module 400 is located on one side of the buoy-type upper stirring module or on one side of the final sedimentation tank, and slides down into the sewage water to detect nitrate, ammonia, pH (hydrogen ion concentration), temperature, and It serves to measure water depth and pressure.

As shown in FIG. 10, it is composed of a sensor body 410, a sensor up and down actuator 420, a slide bar 430, and a multi-sensor unit 440.

The sensor body 410 is formed in a longitudinal rod shape and serves to protect and support each device from external pressure.

It is supported by a support frame.

The sensor body has a water quality measurement calculation control unit formed on one side of the upper head, an upper and lower actuator for the sensor is formed on one side of the lower part of the water quality measurement calculation control unit, a slide bar is formed on one lower side of the upper and lower actuator for the sensor, and a multi-sensor is formed on one side of the bottom of the slide bar. Wealth is formed.

The up and down actuator 420 for the sensor is located on one side of the upper part of the sensor body and serves to generate a force that moves the slide bar up and down.

One side of the input terminal is connected to the smart control unit and is driven by the control signal from the smart control unit.

The slide bar 430 is located on one side of the bottom of the sensor up and down actuator, and slides in the up and down direction by receiving the force of up and down reciprocating movement from the sensor up and down actuator.

As shown in Figure 11, this slides down into the sewage water and supports the multi-sensor unit to be positioned in the sewage water.

The multi-sensor unit 440 is located at the bottom of the slide bar, slides in the up and down direction according to the up and down reciprocating movement of the slide bar, and is located in the sewage water of the oxidation port or the sewage water of the final sedimentation tank, and detects nitrate, ammonia, and pH of the sewage. It serves to measure (hydrogen ion concentration), temperature, water depth, and pressure.

As shown in FIG. 12, it consists of a cylindrical sensor body 441, and the sensor body includes a nitrate measurement sensor 442 for measuring nitrate, an ammonia sensor 443 for measuring ammonia, and pH (hydrogen ion). a pH sensor 444 that measures the concentration), a water depth temperature sensor 445 that measures the water depth temperature of the sewage, a dissolved oxygen sensor 446 that senses the amount of air (oxygen) injected into the sewage, and an inflow into the oxidation port. It consists of a water level sensor 447 that measures the height of the sewage and the final sedimentation tank, and a pressure sensor 448 that measures the pressure of the sewage.

That is, the nitrate measurement sensor 442 and the ammonia sensor 443 form a collinear structure and are formed on one side of the lower part of the sensor body, and the pH sensor 444 and the water depth temperature sensor 445 are located on one side of the middle part of the sensor body. An air injection measurement sensor 446 is formed on one side of the upper part of the pH sensor, a water level sensor 447 is formed on one side of the upper part of the sensor body, which is above the dissolved oxygen sensor, and a sludge measuring sludge concentration is formed on one side of the upper part of the water level sensor. A concentration sensor 448 is formed.

Here, the sludge concentration sensor 448 is measured using a transmitted light method, and the light source and detector are composed of one module. The sludge concentration measurement range is 0 to 15,000 mg/l, the water depth is 0 to 10 m, the sludge interface is over 10,000 mg/l, the light source is made of an LED device, and the detector is made of a silicon autocell.

Next, the smart control unit 500 according to the present invention will be described.

The smart control unit 500 controls the overall operation of the anaerobic tank, oxidation tank, final sedimentation tank, buoy-type upper layer agitation module, propeller-type lower layer agitation module, and underwater slide-type water quality detection sensor module, measures the water quality in real time, and then measures the water quality. Depending on the condition, the injection speed and injection time of the underwater upper layer agitator among the components of the buoy-type upper layer agitation module, the rotation speed and rotation time of the propeller drive motor among the components of the propeller-type lower layer agitation module, and the driving cycle of the final sedimentation tank. It serves to automatically control the dissolved oxygen concentration, MLSS concentration, and returned sludge rate to the standard settings.

It consists of a microprocessor.

That is, as shown in Figure 13, the nitrate measurement sensor 442 of the underwater slide-type water quality detection sensor module is connected to one side of the input terminal, a sensing signal measuring nitrate is input, and the underwater slide is connected to one side of another input terminal. The ammonia sensor 443 of the type water quality detection sensor module is connected, and a sensing signal measuring ammonia is input, and the pH sensor 444 of the underwater slide type water quality detection sensor module is connected to one side of another input terminal, pH ( A sensing signal measuring the hydrogen ion concentration is input, and the water depth temperature sensor 445 of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal, and a sensing signal measuring the water depth temperature of the sewage is input. The dissolved oxygen sensor 446 of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal, and a sensing signal for sensing the amount of air (oxygen) injected into the sewage is input, and the underwater slide is connected to one side of another input terminal. The water level sensor 447 of the type water quality detection sensor module is connected, and a sensing signal that measures the height of the sewage flowing into the oxidation port and the height of the sewage in the final sedimentation tank is input, and an underwater slide-type water quality detection sensor is installed on one side of another input terminal. The pressure sensor 448 of the module is connected, and a sensing signal measuring the pressure of the sewage is input, and the sewage inflow pump of the anaerobic tank is connected to one side of the output terminal, so that the sewage inflow pump (11) flows into the anaerobic tank. An output signal is output to one side of the other output terminal, and a mixer 12 of the anaerobic tank is connected to one side of the other output terminal to output an output signal toward the mixer so that the microbial sludge returned from the final sedimentation tank and the incoming sewage are mixed. An internal return pump (22a) is connected to the aerobic oxidation port and outputs an output signal toward the internal return pump to return the sewage in the aerobic oxidation port to the anoxic oxidation port. An anaerobic transfer pump (31) is connected to one side of another output terminal, and the final An output signal is output toward the anaerobic tank transfer pump to transfer the return sludge branched from the sludge discharge pipe of the sedimentation tank to the anaerobic tank, and a surplus sludge pump 32 is connected to one side of another output terminal to transfer excess sludge through the surplus sludge transfer pipe. An output signal is output to the surplus sludge pump to be transferred to the thickening tank, and the air supply blower 221 of the buoy-type upper stirring module is connected to one side of another output terminal to suck in external air to the venturi-type 4-channel air injection ejector unit. An output signal is output toward the air supply blower to supply air, and the propeller driving motor 320 of the propeller-type lower layer stirring module is connected to one side of another output terminal, forming a water channel and flow rate in the sewage water of the anoxic oxidation zone and the aerobic oxidation zone. While doing so, an output signal is output toward the propeller drive motor to agitate the sewage and microbial sludge in the lower layer of the water, and the upper and lower actuator 420 for the sensor of the underwater slide-type water quality detection sensor module is connected to one side of another output terminal, and the multi-sensor unit It is configured to output an output signal to the up and down actuator for the sensor to generate a force that moves the slide bar up and down.

As shown in FIG. 14, the smart control unit 500 includes a dissolved oxygen concentration control unit 510, a returned sludge recirculation control unit 520, an MLSS concentration control unit 530, and an oxidation port customized circulation loop control unit 540. It is composed.

First, the dissolved oxygen concentration control unit 510 according to the present invention will be described.

The dissolved oxygen concentration control unit 510 senses the dissolved oxygen in the sewage water and, if it deviates from the standard setting value, controls the operation of the buoy-type upper agitation module to adjust the dissolved oxygen concentration in the sewage water to the standard setting value. .

In other words, the necessary oxygen concentration in the sewage water of the aerobic oxidation hole can be adjusted by adjusting the underwater immersion of the underwater upper layer agitator of the buoy-type upper layer agitation module.

The more the upper underwater agitator is submerged, the less oxygen is supplied to the water.

The immersion of the upper underwater agitator can be adjusted through the underwater immersion depth control unit installed between the buoy body and the upper underwater agitator.

Under normal operation, the dissolved oxygen concentration in the sewage water of the aerobic oxidation pit should be 0.5 mg/l to 2.0 mg/l, and this value is measured by the upper water agitator around 4.5 meters upstream of the aerobic oxidation pit.

As shown in Figure 15, the right side of the aerobic oxidation hole viewed from a plan view is viewed as the upstream, the middle portion is viewed as the middle stream, and the left side is viewed as the downstream.

If the dissolved oxygen concentration in the sewage water of the aerobic oxidation hole is higher than 2.0 mg/l, the power of the buoy-type upper layer agitator module is wasted, and if the concentration is lower than 0.5 mg/l, the underwater immersion depth of the underwater upper layer agitator is adjusted. , Adjust so that it is submerged 30cm to 60cm more in sewage water than at first.

At this time, the upper submersible agitator is set to be adequately immersed in water so that sludge contained in sewage or microbial sludge in the aerobic oxidation pit does not settle at the bottom of the aerobic oxidation pit.

In addition, the underwater immersion depth control unit is set so that it is not deeply immersed in the water all at once, but is slowly submerged in the water at intervals of 30cm to 60cm. The lowest allowable submersion value and the highest permissible submergence value of the underwater upper layer agitator of the buoy-type upper agitation module according to the present invention are set to 50 cm to 200 cm based on the water surface of the sewage.

Second, the returned sludge recirculation control unit 520 according to the present invention will be described.

When the input sensing signal for sensing the water level of the final settling tank exceeds the standard set value, the returned sludge recirculation control unit 520 discharges the clear water from the upper part of the final settling tank into the treatment tank and transfers the sludge from the lower side of the final settling tank to the anaerobic tank. In addition, it plays a role in controlling the recirculation of the returned sludge by transferring it to the concentration tank to meet the standard setting value.

This prevents the sludge layer in the final settling tank from accumulating and CO2 gas and N2 gas rising from the sludge and overflowing the settling ware.

In other words, if the sludge layer in the final settling tank accumulates and CO2 gas and N2 gas rise from the sludge and are likely to exceed the settling weir, the sludge return rate should be increased.

At this time, the measurement of the current amount of returned sludge is calculated as follows:

Here, Q is the inflow sewage amount (m ³ /hr), q ₁ is the initial set returned sludge amount (m ³ /hr), and SVF represents the returned sludge volume capacity index.

Here, SVF refers to the capacity index occupied by sludge after a 30-minute sludge sedimentation test.

For example, if sludge solids occupy 600 mℓ in a 1000 mℓ beaker after 30 minutes of settling, SVF = 600 mℓ/1000 mℓ = 0.6.

The returned sludge recirculation control unit according to the present invention sets the sludge return ratio to increase as the SVF increases.

That is, based on the inflow sewage amount 2 Q ~ 3 Q, the set initial return sludge amount, the return sludge capacity index, and the water level sensing signal of the final sedimentation tank measured in real time, the sludge return ratio (1) set as a standard is 0.8 to 0.9. As early as possible, recirculation of the returned sludge is controlled by immediately opening the sludge discharge pipe, driving the sedimentation tank return pump, and controlling the operation of the surplus sludge pump, transferring the microbial sludge to the anaerobic tank, and transferring the excess sludge to the thickening tank.

In this way, when the sensing signal for sensing the water level of the final settling tank input through the returned sludge recirculation control unit according to the present invention exceeds the standard range, the final settling tank is automatically driven to discharge the upper clear water into the treatment tank, and the lower By opening the sludge discharge pipe on the side, controlling the operation of the sedimentation tank return pump, and controlling the operation of the surplus sludge pump, the return sludge is recirculated through transfer to the microbial sludge anaerobic tank and transfer to the surplus sludge thickener, so that the sludge layer in the final sedimentation tank rises, causing sedimentation wear. The overflow phenomenon can be reduced to less than 70%.

Third, the MLSS concentration control unit 530 according to the present invention will be described.

If the sludge concentration in the sewage water of the aerobic oxidation port transmitted from the sludge concentration sensor is higher than the standard setting value, the MLSS concentration control unit 530 controls the operation of the buoy-type upper agitation module and the propeller-type lower agitation module to lower the dissolved oxygen. , If the sludge concentration is lower than the standard setting value, the operation of the buoy-type upper layer agitation module and the propeller-type lower layer agitation module is controlled to increase the nitrification reaction in the aerobic oxidation zone, thereby controlling the sludge concentration to meet the standard setting value.

Here, the standard setting value of the MLSS concentration is the sludge (MLSS) concentration of the aerobic oxidation zone and is set to 3,500 mg/l to 6,000 mg/l.

The MLSS (Mixed Liquor Suspended Solids) refers to the concentration of suspended solids (SS) in the aerobic oxidation zone. It consists mostly of microorganisms and suspended solids that do not decompose into microorganisms. In order for microorganisms to survive, they eat organic pollutants and use them as energy to grow. MLSS is the amount of these microorganisms.

This is the F/M ratio, that is, the food to microorganism ratio.

When maintaining an appropriate level of F/M ratio, microorganisms can consume a lot of food.

If the MLSS is too high, the bulking and oxidation pit advanced treatment plants will be overloaded and thick foam will be generated at the top of the sewage water. At this time, the MLSS concentration control unit lowers the dissolved oxygen to prevent poor sludge settling due to a decrease in the nitrification rate.

If the MLSS is too low, organic contaminants in the sewage are not sufficiently removed. Therefore, the MLSS concentration control unit controls the operation of the buoy-type upper agitation module and the propeller-type lower agitation module to increase the nitrification reaction in the aerobic oxidation zone to increase the sludge concentration. Adjust to match the standard setting value.

Here, when the MLSS is too low, the driving control of the buoy-type upper layer agitation module and the propeller-type lower layer agitation module is as follows.

That is, after first controlling the underwater immersion of the underwater upper layer agitator of the buoy-type upper agitating module, the motor rotation speed is increased to increase the dissolved oxygen concentration in the water.

Second, the rotation speed of the propeller drive motor of the propeller-type lower layer agitation module is increased to increase the flow rate of the lower layer of sewage, and the sludge screen cutting rate of the sludge screen cutting on the screen network of the double-arm spread type sludge screen cutting module is increased.

At this time, when the sludge cutting rate is increased, large lumps of sludge are cut and divided into small pieces, and the specific surface area of the sludge, which becomes the food (substrate) for digestive microorganisms, increases, making decomposition easier. As a result, the microbial activation rate through the microbial contact atmosphere can be improved by 80% compared to the existing method.

Fourth, the oxidation hole customized circulation loop control unit 540 according to the present invention will be described.

The oxidation hole-customized circulation loop control unit 540 rotates the flow rate of the anoxic oxidation zone at a speed of 0.25 to 0.35 m/sec in one direction through driving the propeller-type lower layer stirring module, and operates the oxic tank oxidation zone through driving the buoy-type upper layer stirring module. After rotating the sewage in a one-way loop at a speed of 0.25 to 0.35 m/sec, it serves to create an atmosphere so that the microbial sludge has a retention time of 24 to 60 hours.

As a result, the loop rotation through the anoxic oxidation port and the loop rotation through the aerobic oxidation port can be circulated in a customized circulation loop method for 24 to 60 hours depending on the water quality, forming a microbial sludge residence time of 24 to 60 hours. There is no odor, and the nitrification of ammonia can be improved by 80%. Due to the CO2 gas and N2 gas generated from the sludge, the sludge volume in the final sedimentation tank swells, and the sludge swelling phenomenon where the sludge exceeds the wear is reduced by 70% or less compared to before. It can be lowered to .

Hereinafter, the specific operation process of the three-effect type new oxidation hole advanced treatment device consisting of the sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention will be described.

Figure 18 is a flowchart showing the specific operation process of the three-effect type new oxidation hole advanced treatment method consisting of the sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect according to the present invention.

First, the double-arm spread type sludge screen cutting module is formed by spreading it in an upright structure with both arms on the anoxic oxidation zone and the aerobic oxidation zone and combining them in a slide manner (S10).

That is, the screen net support bar, which elastically supports the PGA-type screen net, is slidably coupled to the slide-type support frame formed integrally on the anoxic oxidation hole and the aerobic oxidation hole.

At this time, since the anoxic oxidation hole and the aerobic oxidation hole are in a state where sewage has not flowed in, or only sludge is left on the bottom, they can be formed by combining them in a sliding manner using a crane.

Next, as shown in FIG. 15, the sewage inflow pump is driven according to the control signal from the smart control unit to allow sewage to flow into the anaerobic tank through the sewage inlet pipe, and the anaerobic tank transfer pump is driven according to the control signal from the smart control unit. This causes the microbial sludge settled at the bottom of the final sedimentation tank to flow into the anaerobic tank through the return sludge transfer pipe (S20).

The inflow sewage and microbial sludge are mixed with a mixer inside the anaerobic tank to maintain an anaerobic state. This causes POLY-P microorganisms present in the microbial sludge to vomit out phosphorus in an anaerobic state, as well as to inflow sewage. Organic carbon sources are adsorbed at an early stage and the development of filamentous fungi is suppressed.

Here, the returned microbial sludge is returned up to 60 to 100% of the sewage volume and mixed with the inflow raw water, thereby acting more effectively in pursuing denitrification in the anoxic oxidation hole, which is the next step.

Next, the sewage and sludge sufficiently mixed in the anaerobic tank are transferred to the anoxic oxidation zone (S30).

At this time, in the anoxic oxidation zone, denitrification is performed under anoxic conditions.

Next, in order to induce denitrification, the double-arm spread type sludge screen cutting module installed in the anoxic oxidation hole is formed in a double-armed upright structure on the anoxic oxidation hole and the aerobic oxidation hole, and the sludge contained in the inflowing sewage with the power of the flowing sewage is formed. The sludge screen is cut by passing it through a screen net (S40).

Next, the propeller-type lower layer agitation module installed in the anoxic oxidation port to induce denitrification is driven according to the control signal from the smart control unit, forming a water channel and flow rate flowing in one direction, and agitating the sewage and microbial sludge in the lower layer of the water ( S40).

This stirs sewage and microbial sludge in the lower layer of water without supplying oxygen, and the rotation speed is operated at 5 to 50 rpm according to the control signal from the smart control unit.

Next, the underwater slide-type water quality detection sensor module is driven according to the control signal from the smart control unit to sense the sludge (MLSS) concentration in the anoxic oxidation zone, and then adjusts the sludge (MLSS) concentration to the standard set value through denitrification in the anoxic oxidation zone. The buoy-type upper layer agitation module and the propeller-type lower layer agitation module are driven and controlled so that they are maintained (S50).

At this time, the sludge (MLSS) concentration of the anoxic oxidation zone is operated to maintain 3,500 mg/l to 6,000 mg/l.

That is, if the sludge concentration in the sewage water of the aerobic oxidation port transmitted from the sludge concentration sensor is higher than the standard setting value, the MLSS concentration control unit 530 of the smart control unit controls the operation of the buoy-type upper agitation module and the propeller-type lower agitation module. Dissolved oxygen is lowered, and if the sludge concentration is lower than the standard setting value, the operation of the buoy-type upper layer agitation module and the propeller-type lower layer agitation module is controlled to increase the nitrification reaction in the aerobic oxidation hole to adjust the sludge concentration to the standard setting value.

If the MLSS is too high, the bulking and oxidation pit advanced treatment plants are overloaded, and thick foam is generated at the top of the sewage water. At this time, the MLSS concentration control unit lowers the dissolved oxygen to prevent poor sludge settling due to a decrease in the nitrification rate.

If the MLSS is too low, organic contaminants in the sewage are not sufficiently removed. Therefore, the MLSS concentration control unit controls the operation of the buoy-type upper agitation module and the propeller-type lower agitation module to increase the nitrification reaction in the aerobic oxidation zone to increase the sludge concentration. Adjust to match the standard setting value.

Here, when the MLSS is too low, the driving control of the buoy-type upper layer agitation module and the propeller-type lower layer agitation module is as follows.

That is, after first controlling the underwater immersion of the underwater upper layer agitator of the buoy-type upper agitating module, the motor rotation speed is increased to increase the dissolved oxygen concentration in the water.

Second, the rotation speed of the propeller drive motor of the propeller-type lower layer agitation module is increased to increase the flow rate of the lower layer of sewage, and the sludge screen cutting rate of the sludge screen cutting on the screen network of the double-arm spread type sludge screen cutting module is increased.

At this time, when the sludge cutting rate is increased, large lumps of sludge are cut and divided into small pieces, and the specific surface area of the sludge, which becomes the food (substrate) for digestive microorganisms, increases, making decomposition easier. As a result, the microbial activation rate through the microbial contact atmosphere can be improved by 80% compared to the existing method.

At this time, an atmosphere is created to denitrify nitrate nitrogen (NO ₃ -N) in the anoxic oxidation hole.

In other words, the characteristic of the anoxic oxidation pit is that the structural retaining wall of the anoxic oxidation pit uses an inflow baffle between the structural barrel walls of the aerobic oxidation pit to make it easier for denitrified sewage to flow into the aerobic oxidation pit, and the aerobic oxidation area is controlled by the smart controller. This aims to maximize efficiency by preventing the overflow of sewage from the oxidation port to the anoxic oxidation port. As the sewage transferred to the anoxic oxidation port passes through the anoxic oxidation port, nitrate nitrogen (NO ₃ -N) remaining in the sewage is denitrified. .

Next, the denitrified sewage is allowed to flow into the aerobic oxidation hole through the inflow baffle, and the inflow sewage is divided into a double-arm spreadable sludge screen cutting module (100), a float type, installed inside the aerobic oxidation hole according to the control signal from the smart control unit. The upper stirring module 200 is driven to control air and sewage to come into contact and maintain an aerobic state (S60).

Here, the double-arm spread type sludge screen cutting module 100 and the buoy-type upper layer agitation module 200 ensure a smooth flow of sewage and a sufficient supply of air depending on the upstream side and the downstream side.

At this time, the DO concentration is automatically maintained at 3 to 5 mg/l.

As shown in FIG. 16, the double-arm unfolding type sludge screen cutting module 100 is formed in a plurality by unfolding in an upright structure with both arms on one side upstream and one side downstream of the anoxic oxidation zone and the aerobic oxidation zone, so that the sludge screen cutting module 100 that flows in with the force of the flowing sewage The sludge contained in sewage is passed through a screen net and the sludge screen is cut.

At this time, the PGA (Poℓy-γ-gℓutamic acid) of the PGA-type screen network passes through the screen network to achieve the effect of attaching or adding anions of the carboxyl group to the surface of the sludge screen cut sludge, thereby attaching or adding anions of the carboxyl group. The added sludge can be easily adsorbed with cationic microorganisms, and as a result, the activation rate of the microbial contact atmosphere can be increased by 1.5 to 2 times compared to the existing one.

In addition, the buoy-type upper layer stirring module 200 forms a waterway and flow velocity flowing in one direction while floating in the flow rate on one side upstream and one side downstream of the anoxic oxidation port and the aerobic oxidation port, and uses a double-arm spread type sludge screen cutting module. Air is supplied to the cut sludge and sewage through the sludge screen to agitate the sewage and microbial sludge in the upper layer of the water at the same time as deep aeration.

At this time, the smart control unit operates the double-arm spread type sludge screen cutting module (100) and the buoy-type upper layer agitation module (200), and then drives the underwater slide-type water quality detection sensor module (400) to produce an underwater slide-type water quality detection sensor module. A sensing signal for sensing the amount of air (oxygen) injected into the sewage is input from the dissolved oxygen sensor, and when the DO concentration reaches 3 to 5 mg/l, the two-arm spread type sludge screen cutting module 100, buoy-type upper layer Stop driving the stirring module 200.

Next, as shown in FIG. 17, the double-arm spread type sludge screen cutting module 100 is detached from the anoxic oxidation port and the aerobic oxidation port (S70).

It is installed on the anoxic oxidation hole and the aerobic oxidation hole in a slide-type attachment method to cut the sludge screen. After 3 to 5 hours of the total advanced treatment time, it is installed on the anoxic oxidation hole and the aerobic oxidation hole using a slide-type detachment method through a crane. Detach.

The sludge, finely cut to a certain size, comes into contact with microorganisms and floats along with the force of the flowing sewage, becoming food for digestive microorganisms, making it easier to decompose the sludge. PGA (Poly-γ-glutamic acid) is added to the PGA-type screen net. ) This is to increase the efficiency of attachment or addition of anions to the carboxyl group by spraying the coating liquid.

Next, according to the control signal from the smart controller, the sewage flowing into the aerobic oxidation zone is returned to the inorganic oxidation zone by driving the internal return pump (S80).

At this time, the return amount is set to be 2 Q to 3 Q of the inflow sewage amount, and the sludge (MLSS) concentration in the aerobic oxidation zone is set to be maintained at 3,500 mg/l to 6,000 mg/l.

The sewage flowing into the aerobic oxidation hole is returned to the inorganic oxidation hole through the inflow baffle by driving the internal return pump, thereby removing residual nitrogen (NO ₃ -N) and organic matter that may remain in the sewage flowing into the aerobic oxidation hole. The purpose is to more effectively treat and remove nitrification and to additionally supply organic carbon sources needed for denitrification.

Next, the highly treated sewage from the aerobic oxidation hole is sent to the final sedimentation tank through the sewage treatment pipe according to the control signal from the smart controller (S90).

Here, advanced treatment in the aerobic oxidation zone refers to advanced treatment due to sufficient nitrification, activation of microorganisms, and retention of microorganisms, and the sludge (MLSS) concentration in the aerobic oxidation zone is maintained at 3,500 mg/l to 6,000 mg/l. , DO concentration is maintained at 3 to 5 mg/l.

Finally, as shown in FIG. 17, the sewage discharged to the final settling tank according to the control signal from the smart control unit undergoes solid-liquid separation of clear water and sludge in the final settling tank, the clear water is discharged, and the sludge is transferred to the settling tank. It is returned to the anaerobic tank through the return sludge transfer pipe by the return pump, and the surplus sludge is transferred to the thickening tank through the surplus sludge transfer pipe by the surplus sludge pump and dewatered (S100).

In other words, when the input sensing signal for sensing the water level of the final settling tank exceeds the standard set value, the returned sludge recirculation control unit 520 of the smart control unit discharges the clear water from the upper part of the final settling tank into the treatment tank and sludge from the lower side of the final settling tank. Along with being transferred to the anaerobic tank, it is transferred to the concentrate tank and the returned sludge is recirculated to adjust to the standard set value.

1: Three-effect type new oxygen sphere advanced processing device
10: Anaerobic tank
20: Oxidation sphere
30: final sedimentation tank
100: Double-arm spread sludge screen cutting module
200: Buoy type upper stirring module
300: Propeller type lower layer stirring module
400: Underwater slide type water quality detection sensor module
500: Smart control unit

Claims (8)

An anaerobic tank (10) that maintains an anaerobic state by mixing the sewage flowing in through the sewage inlet pipe and the microbial sludge returned from the final sedimentation tank at the rear end with a blender;
One side is connected to the anaerobic tank and pipe, and the other side is connected to the final sedimentation tank and sewage treatment pipe, and the middle partition wall makes two tanks of four series each, with an anoxic oxidation port (21) and an aerobic oxidation port (22) for inflow. An oxidation port (20) that processes sewage in anoxic and aerobic conditions,
It consists of an oxidation port advanced treatment device consisting of a final settling tank (30) that separates the sewage treated by the oxidation port into solid and liquid,
The oxidation hole advanced processing device is
A two-arm spread type sludge screen cutting module (100) is formed in a plurality by spreading both arms in an upright structure on the anoxic oxidation port and the aerobic oxidation port, and cuts the sludge screen by passing the sludge contained in the sewage flowing in with the force of the flowing sewage through the screen net. )class,
It is located on one side of the front or rear end of the double-arm expansion type sludge screen cutting module, and sludge is cut through the sludge screen through the double-arm expansion type sludge screen cutting module, forming a channel and flow velocity flowing in one direction while floating in the flow rate. and a buoy-type upper layer agitation module (200) consisting of a buoy body (210) and an underwater upper layer agitator (220) to supply air to the sewage side to agitate the sewage and microbial sludge in the upper underwater layer at the same time as deep aeration,
It is formed in the sewage water of the anoxic oxidation hole and the aerobic oxidation hole, and is driven according to the control signal of the smart control unit, forming a water channel and flow rate flowing in one direction, while agitating the sewage and microbial sludge in the lower layer of the water, a straight propeller support part (310) ), a propeller drive motor 320, and a propeller-type lower stirring module 300 consisting of a propeller unit 330,
An underwater slide-type water quality detection sensor that is located on one side of the buoy-type upper stirring module or on one side of the final sedimentation tank and slides down into the sewage water to measure nitrate, ammonia, pH (hydrogen ion concentration), temperature, water depth, and pressure of the current sewage water. module 400,
By controlling the overall operation of the anaerobic tank, oxidation tank, final sedimentation tank, buoy-type upper layer agitation module, propeller-type lower layer agitation module, and underwater slide-type water quality detection sensor module, water quality is measured in real time, and then buoy-type upper layer agitation is performed according to the water quality conditions. Among the components of the module, the injection speed and injection time of the underwater upper layer agitator, the rotation speed and rotation time of the propeller drive motor among the components of the propeller-type lower layer agitation module, and the driving cycle of the final sedimentation tank are adjusted to control the dissolved oxygen concentration, Three-effect type new oxidation hole advanced treatment consisting of sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect, which includes a smart control unit (500) that automatically controls MLSS concentration and returned sludge rate according to standard settings. In the device,
The two-arm spread type sludge screen cutting module (100) is
Two pieces are made up of one set, and are attached and fixed to the bottom of the oxidation hole and formed into an upright straight shape. It guides the screen mesh support bar to be slide-inserted along the rail groove and elastically supports the screen mesh support bar so that it does not fall out. A slide-type support frame (110),
A screen net support bar 120 that elastically supports the PGA-type screen net in both directions and is slide-guided and coupled to the slide-type support frame,
High-carbon steel wires with a thickness of 0.05 mm to 0.5 mm and coated with PGA (Poℓy-γ-gℓutamic acid) are overlapped in the horizontal and vertical directions to form a screen network with a size of 1 cm to 10 cm, and then the force of flowing sewage is applied. Sludge screen cutting effect, underwater upper and lower layer agitation effect, oxidation hole customized circulation loop control effect, characterized by consisting of a PGA type screen net (130) that cuts the sludge screen by passing the sludge contained in the sewage flowing in through the screen net. A three-effect type new oxygen sphere advanced processing device consisting of.
delete delete delete delete The method of claim 1, wherein the smart control unit 500
The nitrate measurement sensor (442) of the underwater slide-type water quality detection sensor module is connected to one side of the input terminal, and the sensing signal measuring nitrate is input, and the ammonia sensor (443) of the underwater slide-type water quality detection sensor module is connected to one side of the other input terminal. ) is connected, and a sensing signal measuring ammonia is input, and the pH sensor 444 of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal, and a sensing signal measuring pH (hydrogen ion concentration) is input. input, the water depth temperature sensor 445 of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal, and a sensing signal measuring the water depth temperature of the sewage is input, and the underwater slide-type water quality sensor module is connected to one side of another input terminal. The dissolved oxygen sensor (446) of the detection sensor module is connected, and a sensing signal for sensing the amount of air (oxygen) injected into the sewage is input, and the water level sensor (447) of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal. ) is connected, and a sensing signal that measures the height of the sewage flowing into the oxidation port and the height of the sewage in the final sedimentation tank is input, and the pressure sensor 448 of the underwater slide-type water quality detection sensor module is connected to one side of another input terminal. , a sensing signal that measures the pressure of sewage is input, and the sewage inflow pump of the anaerobic tank is connected to one side of the output terminal, outputting an output signal toward the sewage inflow pump (11) to allow sewage to flow into the anaerobic tank, and another output An anaerobic tank mixer (12) is connected to one side of the terminal, and outputs an output signal toward the mixer so that the microbial sludge returned from the final sedimentation tank is mixed with the incoming sewage, and an internal return pump (22a) is connected to one side of another output terminal. , an output signal is output toward the internal return pump to return the sewage in the aerobic oxidation port to the anoxic oxidation port, and an anaerobic transfer pump (31) is connected to one side of another output terminal to transfer the return sludge branched from the sludge discharge pipe of the final sedimentation tank. An output signal is output toward the anaerobic tank transfer pump to transfer it to the anaerobic tank, and a surplus sludge pump 32 is connected to one side of another output terminal, so that the surplus sludge is transferred to the thickening tank through the surplus sludge transfer pipe. The air supply blower (221) of the buoy-type upper stirring module is connected to one side of another output terminal, and an output signal is sent to the air supply blower to suck in external air and supply air to the venturi-type 4-channel air injection injector unit. is output, and the propeller drive motor 320 of the propeller-type lower layer agitation module is connected to one side of another output terminal, forming a water channel and flow rate in the sewage water of the anoxic oxidation zone and the aerobic oxidation zone, and agitating the sewage and microbial sludge in the lower layer of water. An output signal is output to the propeller drive motor to allow A three-effect type new oxidation hole advanced treatment device consisting of a sludge screen cutting effect, an underwater upper and lower layer agitation effect, and an oxidation hole customized circulation loop control effect, which is configured to output an output signal toward the upper and lower actuators for the sensor.
The method of claim 1, wherein the smart control unit 500
Among the components of the propeller-type lower layer stirring module, the flow rate of the anoxic oxidation zone is rotated in one direction at a speed of 0.25 to 0.35 m/sec through the driving of the propeller driving motor, and among the components of the buoy-type upper layer stirring module, the underwater upper layer agitator is driven. It is configured to include a circulation loop control unit 540 customized for the oxidation tank, which rotates the sewage in the aerobic tank oxidation hole in a one-way loop at a speed of 0.25 to 0.35 m/sec and then creates an atmosphere so that the microbial sludge residence time is 24 to 60 hours. A three-effect type new oxidation hole advanced treatment device consisting of a sludge screen cutting effect, underwater upper and lower layer agitation effect, and oxidation hole customized circulation loop control effect. delete