KR100972395B1 - Advanced treatment apparatus and method for waste water - Google Patents

Abstract

PURPOSE: An apparatus for processing advanced wastewater and a method thereof are provided to improve processing efficiency and processing time by supplying microbubbles containing oxygen of 30% or more through a microbubble diffuser. CONSTITUTION: An apparatus for processing advanced wastewater includes the following: a water collecting tank(8) collecting sewage transferred through a screen tank(6); a chemical reaction tank(10) chemically treating wastewater with ultrasonic waves; a pressurizing floating tank(12) floating sludge in the wastewater by discharging the pressurized water; a reservoir(14) homogenizing the wastewater; a four-step membrane separator(16); a honeycomb tunnel(58) formed into bioceramics; an anaerobic tank(18) activating phosphorus exhaustion of microorganisms; an anoxic chamber(20); an aeration tank(22); a flotation processing tank(24); and a disinfecting chamber(26).

Description

Advanced Wastewater Treatment System and Method {ADVANCED TREATMENT APPARATUS AND METHOD FOR WASTE WATER}

The present invention relates to an advanced wastewater treatment apparatus and method, and more particularly, to an advanced wastewater treatment apparatus and method using microbubbles containing enriched oxygen.

In general, there are a number of treatment methods, such as AO process, SBR process, A ₂ O process, UCT process, VIP process, and HBR process, which are designated as new environmental technologies for biologically advanced wastewater to remove organic matter, nitrogen and phosphorus.

Among them, A ₂ O process is an anaerobic tank, anoxic tank, and aerobic tank to improve the anaerobic-aerobic (A / O) process and remove nitrogen and phosphorus. It is composed of returning sludge, and the returning sludge is mixed with the inflow sewage in the anaerobic tank to release phosphorus by microorganisms, denitrification occurs in the anoxic tank, and nitrogen is removed. It is a method that can be highly treated of wastewater by excessive intake.

In addition, the HBR process is a pretreatment device capable of removing contaminants of the influent sewage, nitrification, denitrification, and ingestion of phosphorus in the culture tank, anaerobic tank, aerobic and anaerobic conditions in which microorganisms are cultivated to remove odors and nutrients from the sewage. It consists of an intermittent aeration tank to induce the sedimentation, and a sedimentation tank for separating the sludge into solids, and the sludge sedimented in the sedimentation tank is circulated to the pre-treatment facility to remove the odor from the culture tank. And advanced processing is possible.

However, the above processes have a drawback that the delivery rate of DO (dissolved oxygen) is insignificant compared to the amount of aeration because the diameter of foaming in the aerobic tank of the aerobic tank is insignificant.

In addition, a complicated conveying system for internal conveying or sludge conveying is required, and a separate final sedimentation tank is to be provided at the rear end, thus requiring a large installation site, increasing an initial installation cost, deteriorating stability of treated water quality, and separate post-treatment. There is a problem that it is impossible to utilize the treated water as heavy water without equipment.

Therefore, the object of the present invention is to innovatively improve the processing time and processing efficiency, to reduce the installation site by reducing the installation capacity, to reduce the overall and operating costs, and to provide the treated water without a separate after-treatment equipment The present invention provides an advanced wastewater treatment system and method for reusing it into water quality of medium water level.

Advanced wastewater treatment system 2 of the present invention for achieving the above object, in the wastewater treatment system (W) advanced treatment device comprising a single reactor (4) divided into a plurality of vertical bulkheads (30), The reactor 4 is configured to chemically treat the wastewater W by projecting ultrasonic waves through a collecting tank 8 for collecting the wastewater W introduced through the screen tank 6 and an ultrasonic device 34 attached to the side wall. A chemical reaction tank 10, a pressurized floatation tank 12 for discharging pressurized water in which air is dissolved to float sludge in the wastewater W, and a storage tank for homogenizing the wastewater W passed through the pressurized floatation tank 12 ( 14, four-stage membrane separation tank 16, in which four stages 54a, 54b, 54c and 54d are rotated at predetermined intervals, and a honeycomb tunnel 58 made of bio-ceramic waste water ( W) through the anaerobic tank (18) and microbubble diffuser (68) to cause a far-infrared wave of W) to activate the phosphorus discharge of microorganisms in the wastewater (W) An oxygen-free tank 20 for activating denitrification and organic matter removal of microorganisms in wastewater (W) by abandoning 99% of nitrogen, and microbubble containing 30% or more of oxygen through the microbubble diffuser 70, W) aeration tank 22 that activates nitrification and phosphorus-derived microorganisms to ingest excessive phosphorus, and aeration of air containing 30% or more oxygen at high pressure through microbubble diffuser 72 to remove pollutants. It consists of a flotation tank (24) for flotation and a disinfection tank (26) for sterilizing the wastewater (W) using microwaves, and the pressure flotation tank (12) and flotation tank (24) are sludge discharge pipes ( 84) is configured to be connected to the sludge concentration tank 28, the flotation separation tank 24 is characterized in that it is configured to be connected to the anaerobic tank 18 through the sludge conveying pipe (86).

And, the advanced wastewater treatment method of the present invention, in the advanced wastewater treatment method,

After the wastewater (W) is introduced into the screen tank (6) to remove the solid particles, it is collected in the collection tank (8), overflowed to the chemical reaction tank (10) and accelerated the chemical reaction by ultrasonic, 12), which is overflowed into the bubble of the pressurized water supplied from the pressure tank 46, floats on the surface of the water, overflows into the storage tank 14, homogenizes, and then overflows into the four-stage membrane separation tank 16 and rotates. Pollutants are removed while passing through the four stages of membranes 54a, 54b, 54c, and 54d, and overflowed into the anaerobic tank 18, through a honeycomb tunnel 58 formed of bio-ceramic, Phosphorus discharge of microorganisms in W) is activated, denitrification and organic matter removal of microorganisms in sewage water (W) are activated by overflowing into an oxygen-free tank (20) and overflowing into an aerobic tank (22) by 30% Wastewater (W) with fine bubbles containing oxygen The nitrification reaction and the microorganisms that discharged phosphorus are activated to ingest excessive phosphorus, overflowed to the flotation separation tank 24, and contaminants are lifted by microbubbles containing at least 30% of oxygen at high pressure, filtered, and then disinfected. The sludge of the pressure flotation tank 12 and the flotation separation tank 24 is sent to the sludge concentration tank 28 for separation and treatment, and the sludge of the flotation separation tank 24 is sent to the sterilization treatment by microwaves. It is characterized in that the return process to the anaerobic tank (18).

The present invention innovatively improves processing time and processing efficiency by supplying microbubbles containing more than 30% oxygen through the microbubble diffuser, and can reduce the installation site by reducing the installation capacity, and overall and operating expenses It can reduce the cost, and there is an effect that can be reused in the water quality of the water level without a separate after-treatment facilities.

1 is a block diagram of an advanced wastewater treatment system according to an embodiment of the present invention,
2 is a schematic diagram of an advanced sewage water treatment apparatus according to an embodiment of the present invention;
3 is a perspective view of a chemical reaction tank according to an embodiment of the present invention,
4 is a perspective view of the pressure injured tank according to an embodiment of the present invention,
5 is a perspective view of a four-stage membrane separation tank according to an embodiment of the present invention,
6 is a perspective view of an anaerobic tank according to an embodiment of the present invention;
7 is a plan view of the ultrasonic apparatus used in the chemical reaction tank according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention reduces the chemical reaction time by installing an ultrasonic device in the chemical reaction tank, by installing a four-layer separation tank in which the four-layer membrane is rotated between the storage tank and the anaerobic tank to filter contaminants in multiple stages, the honeycomb-shaped honeycomb formed of bio-ceramic in the anaerobic tank By installing a tunnel, the far-infrared wave of the wastewater is activated to activate phosphorus discharge of microorganisms in the wastewater, and nitrogen is supplied to the anaerobic tank through the microbubble diffuser and the microbubble containing 30% or more oxygen is supplied to the aerobic tank for treatment time and treatment. Innovatively improving efficiency, reducing installation capacity and operating costs, and reducing the BOD and COD of the effluent to less than 5mg / l, which can be reused as a medium water quality.

1 is a block diagram of an advanced wastewater treatment system according to an embodiment of the present invention, Figure 2 is a schematic diagram of an advanced wastewater treatment system according to an embodiment of the present invention, Figure 3 is a chemical reaction tank according to an embodiment of the present invention 4 is a perspective view of the pressure injured bath according to an embodiment of the present invention. And, Figure 5 is a perspective view of a four-stage membrane separation tank according to an embodiment of the present invention, Figure 6 is a perspective view of an anaerobic tank according to an embodiment of the present invention, Figure 7 is an ultrasonic wave used in the chemical reaction tank according to an embodiment of the present invention Top view of the device.

1 and 2, the advanced wastewater treatment system 2 according to the embodiment of the present invention has a single reactor 4, a collection tank 8, a chemical reactor 10, by a plurality of vertical partitions 30, It is divided into a pressurized floatation tank 12, a storage tank 14, a four-stage membrane separation tank 16, an anaerobic tank 18, an anaerobic tank 20, an aerobic tank 22, a flotation tank 24, a disinfection tank 26, The pressurized floatation tank 12 and the floating separation tank 24 are connected to the sludge concentration tank 28 through the sludge discharge pipe 84, and the floating separation tank 24 is connected to the anaerobic tank 18 through the sludge conveying pipe 86. It is connected and configured. The wastewater (W) is configured to be processed in each tank partitioned by the vertical bulkheads 30 of the single reaction tank 4 and then overflow to flow to the next stage tank.

At the head of the single reaction tank 4 according to the embodiment of the present invention, a screen tank 6 for removing large particulate matter introduced with the wastewater W is provided. The screen tank 6 may be formed on a smaller scale than the respective tanks partitioned in the single reaction tank 4, and the screen net 32 filtering the large particulate matter therein is provided at regular intervals.

After the particulate matter is filtered out of the screen net 32, the wastewater W overflows to the sump 8. In the sump (8) serves to collect the introduced wastewater (W). The water collecting tank 8 may be formed with a capacity capable of collecting the wastewater W for 24 hours.

The wastewater (W) collected in the sump (8) is over the vertical bulkhead 30 and overflows to the chemical reaction tank (10). The chemical reaction tank 10 is installed at the previous stage of the pressure flotation tank 12 to oxidize, neutralize, and aggregate the sewage waste water W to perform chemical treatment. In one example of the present invention, the chemical reaction tank 10 is installed in the preliminary step of the pressure flotation tank 12 of the single reaction tank 4, but as a modification, the chemical reaction tank 10 is a separate independent tank outside the single reaction tank 4. It will be apparent to those having ordinary skill in the art that the waste water W may be installed and configured to flow into the pressurized floatation tank 12.

As shown in FIG. 3, the chemical reaction tank 10 is divided into an oxidation tank 10a, a neutralization tank 10b, and a coagulation tank 10c by two vertical bulkheads 88, and an ultrasonic device 34 on the inner wall. ) Is installed.

In the oxidation tank 10a of the chemical reaction tank 10, aluminum chloride (AlCl ₃ ), aluminum sulfate (Al ₂ (SO ₄ ) ₃ ), and the like are added to oxidize the wastewater (W). The wastewater W oxidized in the oxidizing tank 10a overflows to the neutralizing tank 10b. In the neutralization tank 10b, sodium hydroxide (NaOH) is added to neutralize the oxidized treated wastewater (W). In this case, an ultrasonic device 34 including an ultrasonic sensor 38 is attached to the inner wall of the oxidation tank 10a and the neutralization tank 10b of the chemical reaction tank 10 so as to project ultrasonic waves of a predetermined frequency.

As shown in FIG. 7, the ultrasonic device 34 according to the exemplary embodiment of the present invention is configured to attach a plurality of ultrasonic sensors 38 to the rectangular substrate 36 to generate a frequency of 2000 to 3000 kHz.

The 2000-3000 kHz ultrasonic wave generated by the ultrasonic device 34 refines the particles of the wastewater (W), not only decomposes the complex salt in the wastewater (W), but also accelerates the chemical reaction and increases the dispersing action, thereby improving the chemical reaction time. It is shortened from 5 minutes to 5 minutes, and the amount of chemicals is reduced by 30 to 50%. In particular, it is effective for the treatment of hardly degradable malignant wastewater, and it shows an excellent effect on the treatment of fats and oils and wastes.

The wastewater W neutralized in the neutralization tank 10b is overflowed to the agglomeration tank 10c to cause the agglomeration reaction. In the coagulation tank 10c, a polymer agglomerate is introduced to coagulate and treat contaminants in the wastewater (W).

The wastewater W treated in the chemical reaction tank 10 overflows to the pressure flotation tank 12. As shown in FIG. 4, the pressurizing tank 12 is connected to a pressurizing tank 46 and supplied with pressurized water. The pressurizing tank 46 generates microbubbles and at the same time, the microbubbles are aggregated with sludge mass (FLOC). It can be collected around and play an important role in sludge injury.

10 to 20% of the wastewater (W) introduced into the pressure flotation tank 12 is introduced into the pressure tank 46 along the inflow line 48 by the pump 42, and the pressure tank 46 is the eject 50. The outside air flows through and melts the air in the wastewater (W) introduced in the state of applying a pressure of 3 ~ 5㎏ / ㎠ and send it back to the pressure relief tank (12) along the outflow line 52, the air The dissolved sewage water W is opened in the atmosphere of the pressurized floatation tank 12 and the dissolved air becomes a fine bubble, and at this time, the bubble is formed around the floating material of the wastewater W in the pressurized floatation tank 12. Adherence reduces the specific gravity of the float, which floats to the surface.

The wastewater W is treated in the pressurization tank 12 for 10 minutes and then overflows to the storage tank 14.

The storage tank 14 may be formed with a capacity of 240 to 260 m 3, and the wastewater W stays in the storage tank 14 for 150 minutes to be homogenized to some extent, and then overflows to the four-stage membrane separation tank 16.

As shown in FIG. 5, the four-stage membrane separation tank 16 has four stages 54a, 54b, 54c, 54d at regular intervals in a belt form on the upper and lower rotary shafts, and on the upper rotary shaft. It is configured to be vertically rotated by the installed drive motor 56. The four stages of membranes 54a, 54b, 54c and 54d are formed of membranes, and are composed of membranes which are gradually densified from the storage tank 14 to the anaerobic tank 18. For example, the first stage film 54a may be formed of 50 mesh, the second stage film 54b of 150 mesh, the third stage film 54c of 250 mesh, and the fourth stage film 54d of 500 mesh. Can be. The wastewater treatment capacity of the four-stage membranes 54a, 54b, 54c and 54d can be adjusted according to design criteria.

The membranes 54a, 54b, 54c, and 54d of the four stages can be used semi-permanently and are very economical, and they can treat pollutants in the wastewater (W) as chemical-free, which is very environmentally friendly.

The membranes 54a, 54b, 54c and 54d of the four stages of the four-stage separation tank 16 are rotated vertically and contain up to 85 to 90% of the sources of the closed state such as green algae, red tide and south algae in the wastewater W. After the treatment, the wastewater W overflows to the anaerobic tank 18.

In the anaerobic tank (18) serves to keep the tank anaerobic to discharge the phosphorus microorganisms in the wastewater. The anaerobic tank 18 is only stirred without oxygen supply.

As shown in FIG. 6, the anaerobic tank 18 according to the embodiment of the present invention is formed with a capacity of 50 m 3, and a honeycomb tunnel 58 formed of bio-ceramic is installed on the lower portion of the anaerobic tank 18 so that the wastewater W is a honeycomb tunnel ( 58) In the course of passing through the vortex, it causes far-infrared waves to refine the wastewater (W), decompose nitrate and phosphate in the wastewater (W), and activate phosphorus discharge of microorganisms in the wastewater (W).

The honeycomb tunnel 58 installed in the anaerobic tank 18 is a bio-ceramic material that is fired by mixing radioactive materials such as tourumaline and pearlite with rare earth minerals such as sericite and clay at an appropriate ratio. Is formed.

The honeycomb tunnel 58 may be formed in a honeycomb form by combining hundreds of thousands of regular hexagonal tubes having a thickness of 1.5 mm, a diameter of 3 mm, and a height of 2.5 mm, and the diameter and height of the regular hexagon may be changed according to the capacity of the anaerobic tank 18. .

By the configuration as described above, the anaerobic tank 18 according to the embodiment of the present invention to process the wastewater (W) to form a concentration of 5,000 mg / l mixed liquor suspended solid (MLSS) within 30 minutes to a capacity of 50 ㎥ Can be.

The wastewater W treated in the anaerobic tank 18 overflows to the anaerobic tank 20 beyond the vertical bulkhead 30.

In the oxygen-free tank 20, the water tank is formed in an oxygen-free state, the denitrification reaction of releasing the oxygen insufficient in the oxygen-free state by the microorganisms in the waste water (W) to the atmosphere in the nitrogen gas state in the nitrogen gas state by the reduction action of oxygen in nitrate nitrogen and Organic matter removal is performed.

In general, the wastewater (W) introduced into the anaerobic tank (20) through the anaerobic tank (18) has a DO of 2 to 3 ppm, in the anaerobic tank (20) when the DO in the wastewater (W) reaches 0 ppm by microorganisms It is easy to decompose nitrates. However, it takes 4 to 5 hours or more to treat the wastewater W of 2-3 ppm of DO in the anoxic tank 20 with the wastewater of DO of 0 ppm.

Therefore, in the embodiment of the present invention, the micro-bubble diffuser (68) disclosed in Patent No. 844141 is installed in the oxygen-free tank (20), and the nitrogen generator (60) through the nitrogen supply pipe (78). In connection with 68, the microbubbles of 99% nitrogen are given up in the oxygen-free tank 20.

Nitrogen microbubbles supplied to the oxygen-free tank 20 is combined with a small amount of oxygen in the oxygen-free tank 20 is formed of nitrate ions to quickly form the oxygen-free tank (2) in the state of DO 0ppm. In addition, nitrate ions such as N ₂ O, NO generated through the above process passes through the honeycomb tunnel 58 in the anaerobic tank 18, and denitrification bacteria are denitrified in the anaerobic state together with N ₂ O, NO, etc. of the decomposed nitrate. In order to carry out the reaction, the process of reducing the nitrate to N ₂ O, NO or the like through nitrate breathing and nitrite breathing is shortened, so that the denitrification reaction can proceed quickly.

The denitrification reaction involves electron acceptors. As the main electron acceptor, the organic carbon source of organic matter in the wastewater (W) is used to decompose organic matter and nitrogen is released into the atmosphere.

Nitrogen generator 60 used in the embodiment of the present invention can be used as a product of Puricle Co. of Germany. In addition, nitrogen generated by the nitrogen generator 60 is intermittently abandoned for 30 minutes through the microbubble diffuser 68, and may be abandoned at a rate of 0.8 m 3 / min.

The microbubble diffuser 68 installed in the oxygen-free tank 20 is formed by injecting a silica powder and an alumina powder compact into an extruder, applying a vibration, pressurizing and extruding, and firing in a heat treatment furnace to form silica or alumina powder fine particles. The size of the distribution pipe 68 increases from the surface toward the inner center. Therefore, applying only a small air pressure of about 1 atm has the effect of uniformly and uniformly supplying microbubbles.

By the above configuration, the oxygen-free tank 20 according to the embodiment of the present invention has an effect of treating 90% or more of the wastewater (W) within 30 minutes with a capacity of 50 m 3.

After the denitrification reaction and organic matter removal in the anoxic tank 20, the wastewater W overflows the aerobic tank 22 beyond the vertical bulkhead 30.

In the aerobic tank (22), the tank is brought into an aerobic state so that the nitrification and the microorganisms that discharged the phosphorus intake excessively of phosphorus to remove nitrogen and phosphorus in the wastewater (W).

In the embodiment of the present invention, the aerobic tank 22 is also provided with a microbubble diffuser 70 of the same type as the oxygen-free tank 20, the microbubble diffuser 70 is an oxygen support device 64 by the air supply pipe (80) ). The microbubble diffuser 70 gives up the microbubble containing 30% or more of oxygen to the aeration tank 22 by the oxygen buoy 64.

The oxygen boosting device 64 used in the embodiment of the present invention can also be used as a product of Puricle Co. of Germany. In addition, the air generated by the oxygen support device 64 may be abandoned at a pressure of 2 kg / cm 2 and a speed of 3.2 m 3 / min in the aeration tank 22 for 2 hours through the microbubble diffuser 70.

Generally, 20% of oxygen is contained in the air, whereas the oxygen flotation device 64 gives up to the aerobic tank 22 so that 30% or more of oxygen is contained in the air. Air containing more than 30% oxygen is abandoned by the microbubble diffuser 70 as a microbubble in the aerobic tank 22 to activate the nitrification reaction in the wastewater (W) and the microorganisms that discharged the phosphorus to ingest excessive phosphorus. do. Therefore, it is possible to reduce the running time by 50% or more, reduce overall expenses, and to treat BOD and COD in the wastewater (W) at 5 mg / l or less.

By the above configuration, the aerobic tank 22 according to the embodiment of the present invention is formed at a capacity of 200 m 3 and can process the wastewater (W) 95% or more within 2 hours.

The wastewater W in which the reaction is completed in the aerobic tank 22 is overflowed to the floating separation tank 24 beyond the vertical bulkhead 30. In the floating separation tank 24, the microbubble diffuser 72 of the same type as the anaerobic tank 20 is installed, and the microbubble diffuser 72 of the floating separation tank 24 is also connected to the aerobic tank 22. (64) is supplied with air containing more than 30% oxygen.

The microbubble diffuser 72 of the flotation tank 24 is an air supply pipe 82 formed in a separate line from the air supply pipe 80 of the aerobic tank 22 and connected to the oxygen flotation device 64 for 30 minutes. It can be given up to the floating separation tank 24 at a pressure of 3 kg / ㎠ and a speed of 0.8 ㎥ / min.

The microbubble that is abandoned in the flotation tank 24 serves to float and float the suspended matter in the wastewater (W) one more time. The microbubble diffuser 72 according to the embodiment of the present invention has the effect of quickly and reliably float the suspended matter in the wastewater (W).

By the above configuration, the floating separation tank 24 according to the embodiment of the present invention is formed at a capacity of 50 m 3 and can process 95% or more of the activated microorganisms and untreated organic matter in the wastewater (W) within 30 minutes. .

The sewage waste water W in which the floating material floats in the flotation separation tank 24 is filtered by the pressure filter 74 and then flows into the disinfection tank. The pressure filter 74 is a device for filtration in two stages using diatomaceous earth as a filter, the automatic backwashing device is installed by the inside can be used semi-permanently. Then, the settling sludge which is not injured in the flotation separation tank 24 is conveyed back to the anaerobic tank 18 along the sludge conveying pipe 86.

In addition, the pressurized floatation tank 12 and the floating separation tank 24 is connected to the sludge concentration tank 28 through the sludge discharge pipe 84. The sludge concentration tank 28 concentrates the sludge produced from the pressure flotation tank 12 and the floating separation tank 24.

Finally, the wastewater W filtered through the pressure filter 74 in the flotation tank 24 is introduced into the sterilization tank 26 and sterilized by ozone or microwaves and then discharged.

According to the above configuration, the advanced wastewater treatment apparatus 2 and method of the present invention treat malignant wastewater such as fecal manure with treated water of BOD 5 mg / l or less and COD 5 mg / l or less within 24 hours. Can be reused as agricultural water.

In addition, the installation site can be reduced by reducing the installation capacity due to the innovative improvement of processing time and processing efficiency, and there is an effect of reducing the facility cost and operating cost by 30-50%.

Reference numerals 42 and 72 denote pumps, reference numeral 62 denotes a storage tank, and reference numeral 40 denotes a stirrer.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

4: single reactor 10: chemical reactor
12: pressure injured tank 16: four-stage membrane separation tank
18: anaerobic tank 20: anaerobic tank
22: aerobic tank 24: floating separation tank
34: ultrasonic apparatus 46: pressurized tank
58: honeycomb tunnel 60: nitrogen generator
64: oxygen flotation device 68,70,72: microbubble diffuser

Claims (10)

In the advanced wastewater treatment system (2) comprising a single reactor (4) partitioned into a plurality of vertical bulkheads (30),
The single reaction tank 4 projects the ultrasonic wave through the collection tank 8 for collecting the wastewater W introduced through the screen tank 6 and the ultrasonic device 34 attached to the side wall, thereby chemically treating the wastewater W. The chemical reaction tank 10 to discharge, the pressurized tank 12 to discharge the pressurized water in which air is dissolved, and to raise the sludge in the waste water W, and the storage tank to homogenize the waste water W through the pressurized tank 12 14, four-stage membrane separation tank 16, in which four stages 54a, 54b, 54c, 54d are installed and rotated at predetermined intervals, and a honeycomb tunnel 58 made of bio-ceramic wastewater Denitrification of the microorganisms in the wastewater (W) by abandoning 99% of nitrogen through the anaerobic tank (18) and microbubble diffuser (68) which causes the far-infrared wave of (W) to activate the phosphorus discharge of the microorganisms in the wastewater (W). And an oxygen-free tank 20 for activating organic matter removal, and microbubbles containing 30% or more oxygen through the microbubble diffuser 70. By abandoning the air containing at least 30% of oxygen at high pressure through the aerobic tank 22 and the microbubble diffuser 72 to activate the nitrification reaction in the wastewater (W) and the microorganisms that discharged the phosphorus to ingest excessive phosphorus Floating separation tank 24 for the treatment of contaminants, and disinfection tank 26 for sterilizing the wastewater (W) using microwaves, pressurized flotation tank 12 and the floating separation tank 24 is The sludge discharge pipe 84 is configured to be connected to the sludge concentration tank 28, the flotation separation tank 24 is connected to the anaerobic tank 18 through the sludge conveying pipe 86, characterized in that the advanced wastewater treatment system.
The method of claim 1,
Microbubble diffuser (68) (70) (72) is an advanced wastewater treatment apparatus, characterized in that formed by firing any one of silica powder, alumina powder compact.
The method of claim 1,
Ultrasonic apparatus 34 of the chemical reaction tank 10 is a wastewater advanced treatment apparatus, characterized in that for generating a wavelength of 2000 ~ 3000kHz.
The method of claim 1,
Four stage membranes (54a) (54b) (54c) (54d) of the four-stage separation tank 16 is characterized in that the wastewater advanced treatment apparatus is gradually densified toward the anaerobic tank (18).
The method of claim 1,
MLSS (mixed liquor suspended solid) concentration in the anaerobic tank 18, characterized in that to maintain 5,000 mg / ℓ.
The method of claim 1,
The aerobic tank 22 is a high wastewater treatment system, characterized in that to give up the micro-bubbles containing more than 30% oxygen by the oxygen flotation device at a pressure of 2kg / ㎠ and a speed of 3.2m 3 / min.
The method of claim 1,
Floating separation tank 24 is a high wastewater treatment system, characterized in that to give up the micro-bubbles containing more than 30% oxygen by the oxygen flotation device 64 at a pressure of 3㎏ / ㎠ and a rate of 0.8㎥ / min.
The method according to any one of claims 1 to 7,
Honeycomb tunnel (58) is a high-wastewater treatment system characterized in that it is a bio-ceramic formed by mixing and firing a rare earth mineral including radioactive material, such as Torumaline and Pearlite, Sericite and Clay. .
In the advanced wastewater treatment method,
After the wastewater (W) is introduced into the screen tank (6) to remove the solid particles, it is collected in the collection tank (8), overflowed to the chemical reaction tank (10) and accelerated the chemical reaction by ultrasonic, 12), which is overflowed into the bubble of the pressurized water supplied from the pressure tank 46, floats on the surface of the water, overflows into the storage tank 14, homogenizes, and then overflows into the four-stage membrane separation tank 16 and rotates. Pollutants are removed while passing through the four stages of membranes 54a, 54b, 54c, and 54d, and overflowed into the anaerobic tank 18, through a honeycomb tunnel 58 formed of bio-ceramic, Phosphorus discharge of microorganisms in W) is activated, denitrification and organic matter removal of microorganisms in sewage water (W) are activated by overflowing into an oxygen-free tank (20) and overflowing into an aerobic tank (22) by 30% Wastewater (W) with fine bubbles containing oxygen The nitrification reaction and the microorganisms that discharged phosphorus are activated to ingest excessive phosphorus, overflowed to the flotation separation tank 24, and contaminants are lifted by microbubbles containing at least 30% of oxygen at high pressure, filtered, and then disinfected. The sludge of the pressure flotation tank 12 and the flotation separation tank 24 is sent to the sludge concentration tank 28 for separation and treatment, and the sludge of the flotation separation tank 24 is sent to the sterilization treatment by microwaves. Advanced wastewater treatment method characterized in that it is returned to the anaerobic tank (18).

10. The method of claim 9,
The treated water that has passed through the disinfection tank 26 is BOD and COD is kept below 5mg / ℓ discharged, characterized in that the discharged.

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