KR20200028584A - Annamox reactor comprising settling tank and water treatment method using the same - Google Patents

Abstract

The present invention relates to an anaerobic ammonium-oxidizing (anammox) reactor including a precipitation tank and a water treatment method using the same, and more specifically, to an anammox reactor which maintains stability of anammox process and can greatly reduce hydraulic retention time (HRT), and a water treatment method using the same. To this end, the anammox reactor according to the present invention includes: a first chamber which includes a water to be treated supply pipe for supplying water to be treated, and in which ammonium oxidizing bacteria (AOB) and annamox bacteria are contained; a second chamber which is positioned in rear of the first chamber and precipitates sludge contained in water to be treated supplied from the first chamber; a return pipe which returns sludge precipitated in the second chamber to the first chamber; and a diffuser which injects air into the return pipe to supply bubbles into the first chamber.

Description

ANAMOX REACTOR COMPRISING SETTLING TANK AND WATER TREATMENT METHOD USING THE SAME

The present invention relates to an anomax reaction tank having a precipitation tank and a water treatment method using the same, and more specifically, an ana that can maintain the stability of the anamox process and significantly reduce hydraulic retention time (HRT). It relates to a mox reactor and a water treatment method using the same.

The causes of water pollution include organic substances and inorganic substances such as nitrogen and phosphorus. Nitrogen is one of the nutrients, and it causes side effects and red tides, promotes the generation of harmful floating organisms and causes an increase in the amount of chemical oxygen demand. Organic matter must be removed because it reduces the amount of dissolved oxygen in the water system.

As a method of treating wastewater containing various contaminants, the metabolism of aquatic microorganisms is used.

In the general wastewater treatment method, most of the types in the reaction tank are decomposed and treated with aerobic microorganisms. However, the general wastewater treatment method as described above has a drawback that the amount of power consumed for the operation of the air blower or blower for supplying air in the reactor is large. It is known that in Korea, about 40% of the total power consumption of sewage treatment plants is consumed for blower operation. In addition, nitrogen in wastewater is generally removed by nitrification / denitrification (dependent nutrition denitrification) processes (eg, MLE, A2O processes, etc.).

However, when nitrogen is removed by a general nitrification / denitrification process, a large amount of air must be supplied to nitrate ammonia to nitrate, and when denitrification, organic matter is additionally added, and at the same time, a large amount of sludge is generated. There is a problem of increasing costs.

The nitrogen removal process proposed to solve this is the anammox process. This is to remove nitrogen by reacting ammonia with nitrite to generate nitrogen gas, which can reduce power consumption required for ammonia oxidation, does not require addition of organic substances, and reduces sludge generation compared to general nitrification / denitrification processes. It is very economical.

In general, the anomax process in the SBR method performs a nitrogen removal process in one reactor. However, in the SBR method, there is a disadvantage in that the discharge rate and the nitrogen removal rate are inversely proportional to the reaction tank due to the operation characteristics operated through time distribution and the nitrogen removal characteristics removed through nitrification and denitrification. The reality is that things are limited.

Accordingly, there is a need to develop a technology capable of stably maintaining the anamox process in the anamox reaction tank of the SBR method.

Republic of Korea Patent Publication No. 10-2017-0085886

The present invention is to solve the problems as described above, the object of the present invention is to maintain the stability of the anomax process, and an anomax reaction tank having a settling tank that can significantly reduce the hydraulic retention time (Hydraulic Retention Time, HRT). And to provide a water treatment method using the same.

The above and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The above object includes a first chamber having a treated water supply pipe through which treated water is supplied and accommodating ammonium oxide bacteria (OB) and anamox bacteria therein; A second chamber located at the rear end of the first chamber and sedimenting sludge contained in the water to be treated supplied from the first chamber; A conveying pipe for conveying the sludge precipitated in the second chamber to the first chamber; And an air diffuser supplying air bubbles into the first chamber by injecting air into the conveying tube.

At this time, the microorganisms of the Anamox include Candidatus Kuenenia, Candidatus Brocadia, Candidatus Anammoxoglobus, Candidatus Jettenia and Candidatus. It can be at least any one selected from the group consisting of Candidas Scalindua.

The first chamber, may include a stirrer for stirring the water to be supplied to the inside; may include a plurality of agitators, a plurality of agitators may be disposed up and down. In addition, a perforated plate may be disposed between adjacent agitators arranged up and down, and the cavity formed in the perforated plate is preferably 3 to 5 cm in diameter.

In addition, the Anamox reaction tank is a first control unit for measuring the concentration of the nitrogen compound contained in the water to be treated is supplied to the interior of the first chamber; And a second control unit that controls the supply flow rate of the treated water such that the concentration of ammonium ions (NH ₄ ⁺ ) contained in the treated water supplied into and received into the first chamber maintains a predetermined range. .

The first control unit includes: a first measurement unit for measuring the concentration of ammonium ions (NH ₄ ⁺ ); Part 2 measurement for measuring the concentration of ^- the nitrite ion (Nitrite, NO _2); And a nitrate ^ion-third measuring section for measuring the concentration of (Nitrate, NO _3); can include. The first measurement unit may include a first operation unit that calculates a decrease in the amount of ammonium ion (NH ₄ ⁺ ) by measuring a change in concentration of ammonium ion (NH ₄ ⁺ ) within a unit time, and the second measurement unit includes unit time in the nitrite ion (nitrite, NO ₂ ^-) nitrite ions by measuring the change in concentration of (nitrite, NO ₂ ^-) a second computing unit for computing the amount of; may include a third measuring unit, a nitrate ion in a unit of time may comprise; a third calculating unit for calculating the amount of generated ^- by measuring the concentration of a nitrate ion ^{_{- (nitrate, NO 3) (}} nitrate, NO 3).

The second control unit may control the supply flow rate of the water to be treated through the value calculated by Equation 1 below.

[Equation 1]

Preferably, when the value calculated by Equation 1 is 0.7 or more, the flow rate of the water to be treated can be controlled to maintain the concentration of ammonium ion (NH ₄ ⁺ ) in the chamber at 50 to 100 mg / L, and the math When the value calculated by Equation 1 is less than 0.7, the flow rate of the water to be treated can be controlled to maintain the concentration of ammonium ions (NH ₄ ⁺ ) in the chamber at 100 to 250 mg / L.

In addition, the above object is, in the water treatment method for removing nitrogen contained in the water to be treated using the above-described anamox reaction tank, the water to be treated flowing into the first chamber is stirred, and nitrogen is removed by the anamox process. Becoming the first step; A second step in which the treated water from which nitrogen is removed from the first chamber is supplied to the second chamber, and the sludge is precipitated; And a third step in which the sludge precipitated in the second chamber is returned to the first chamber.

In the first step, the water to be treated may be stirred by a stirrer provided in the first chamber. At this time, a plurality of agitators may be provided, a plurality of agitators may be disposed up and down, and a perforated plate may be disposed between adjacent agitators disposed up and down, and the cavity formed in the perforated plate is preferably 3 to 5 cm in diameter. Do.

According to the present invention, it is possible to stably maintain the anamox process in the anamox reaction tank of the SBR method and significantly reduce hydraulic retention time (HRT).

Specifically, a separate sedimentation tank is provided at the rear end of the Anamox reaction tank, and the microorganisms required for the Anamox process, such as Anamox microorganisms, are appropriately controlled by conveying the precipitated sludge, thereby improving the nitrogen removal effect. .

In addition, after measuring the concentration of the nitrogen compound in the Anamox reaction tank, controlling the supply amount of the treated water according to the change in the concentration of the nitrogen compound, and then maintaining the concentration of ammonium ions in the Anamox reaction tank appropriately, nitrite nitric oxide bacteria (Nitrite Oxidizing Bacteria) can be effectively suppressed to have an effect of improving nitrogen removal efficiency.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view schematically showing an anamox reaction tank according to an embodiment of the present invention.
2 is a view showing a first chamber according to an example.
3 is a view showing an acid device according to an example.
4 is a view showing an acid device according to an example.
5 is a view schematically showing an anamox reaction tank according to an embodiment of the present invention.
6 is a view specifically showing the first control unit.

Hereinafter, the present invention will be described in detail with reference to examples and drawings of the present invention. These examples are only provided by way of example to illustrate the present invention in more detail, it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples. .

In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs, and in case of conflict, the present specification including definitions. The description will take precedence.

In order to clearly describe the proposed invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification. And, when it is said that a part "includes" a certain component, this means that other components may be further included instead of excluding other components unless otherwise specified. In addition, "part" described in the specification means one unit or block that performs a specific function.

The identification numbers (first, second, etc.) in each step are used for convenience of explanation, and the identification numbers do not describe the order of each step, and each step does not explicitly describe a specific order in the context. It may be carried out differently from the order specified above. That is, each step may be performed in the same order as specified, or may be performed substantially simultaneously, or in the opposite order.

1 is a view schematically showing an anomax reaction tank 100 according to an embodiment of the present invention. Referring to FIG. 1, the anamox reaction tank 100 according to an embodiment of the present invention includes a water supply pipe 11 through which the water to be treated is supplied, and ammonium oxide bacteria (Ammonium Oxidizing Bacteria, AOB) therein ) And Anamox bacteria (Annamox bacteria) to receive the first chamber (10); A second chamber 20 located at the rear end of the first chamber 10 and sedimenting sludge contained in the water to be treated supplied from the first chamber 10; A conveying pipe 30 for conveying the sludge precipitated in the second chamber 20 to the first chamber 10; And air diffusers 40 and 50 for supplying air bubbles into the first chamber 10 by injecting air into the conveying pipe 30.

Anamox is an abbreviation of ANaerobic AMMonium OXidation, and refers to a microorganism species that metabolizes using nitrogen or a process using the same. As a technology for finally reducing and releasing nitrogen compounds with nitrogen gas, it has recently been spotlighted in the field of sewage treatment. In the Anamox process, as shown in Chemical Formula 1, first, ammonia-oxidizing bacteria oxidize half of the ammonium ions to produce nitrite ions (Nitrite, NO ₂ ⁻ ).

[Formula 1]

Subsequently, as shown in the following Chemical Formula 2, an anomax bacterium (anomax microorganism) reacts ammonium ions with nitrite ions to generate nitrogen to remove nitrogen compounds. At this time, the ammonium ion and nitrite react at a molar ratio of about 1: 1.

[Formula 2]

The present invention has the effect of stably maintaining the anamox process in the anamox reaction tank 100 of the SBR method and significantly reducing the hydraulic retention time (HRT). Specifically, a separate sedimentation tank is provided at the rear end of the Anamox reaction tank 100 and appropriately control microorganisms required for the Anamox process, such as Anamox microorganisms, by conveying the precipitated sludge, thereby improving the nitrogen removal effect. It has an effect.

The first chamber 10 includes a water supply pipe 11 through which water to be treated enters, and accommodates ammonium oxide bacteria (OBM) and anamox bacteria therein. The shape of the first chamber 10 is not particularly limited, and can be variously designed according to the structure of a water treatment device such as a cylindrical shape or a square pillar shape. The aerobic ammonium oxidizing bacteria (AOB) accommodated in the first chamber 10 can use Nitrosomonas or Nitrosococcus, and the Anamox microorganism is Candidatus cue A group of Candidatus Kuenenia, Candidatus Brocadia, Candidatus Anammoxoglobus, Candidatus Jettenia and Candidatus Scalindua At least one selected from can be used.

The first chamber 10 may include a stirrer 12 for stirring the water to be treated therein. The stirrer 12 stirs the water to be treated so that the anamox process can proceed smoothly. The stirrer 12 may be of an impeller type with wings. The specific shape of the impeller type stirrer 12 is not particularly limited, but preferably, the outer wing portion may be formed to be bent toward the lower direction of the inner wing portion, through which water is collected by hand to push the water forcefully. It is possible to maximize the stirring effect by pushing and flowing as much water as possible in the desired direction.

In addition, a plurality of stirrers 12 may be provided in the first chamber 10. When there are a plurality of agitators 12, the blade diameters of the plurality of agitators 12 may be the same or different, but the diameter of the plurality of agitators 12 having different blade diameters increases from the upper side of the first chamber 10 to the lower side. It is desirable to arrange it to be small.

At this time, the rotational speed (G-value) of the stirrer 12 blade is not particularly limited, and may be appropriately selected, but may preferably be 30 to 110 sec ^-1 , and more preferably, the blade of the plurality of stirrer 12 and the number of revolutions of the largest agitator 12 diameter is 70 ~ 110sec ^-1, wing rotation number of the smallest agitator 12, the diameter may be 30 ~ 50sec ^-1.

At least one perforated plate 13 (see FIG. 2) may be disposed between the plurality of stirrers 12. When the stirrer 12 is one, the perforated plate 13 may be disposed under the stirrer 12. At this time, the plurality of cavities formed in the perforated plate 13 is not particularly limited, and may be variously selected according to the size of the perforated plate 13, the size of the first chamber 10, etc., but having a diameter of 3 to 5 cm It is preferred.

The second chamber 20 serves as a sedimentation basin, is located at the rear end of the first chamber 10, and precipitates sludge contained in the water to be treated supplied from the first chamber 10. In the general anamox process, the process of inflow-mix-aeration-precipitation-discharge occurs in one chamber, and the present invention is divided into two chambers, and the inflow-mix-aeration process is settled in the first chamber 10. -By performing the discharge process in the second chamber 20, hydraulic retention time (HRT) can be greatly reduced.

The second chamber 20 is connected to the first chamber 10 and the conveying pipe 30, and the sludge precipitated through the conveying pipe 30 is conveyed to the first chamber 10. In the process of returning the sludge, the anomax microorganisms, etc. may be introduced back into the first chamber 10 to re-engage in the anamox process.

In order to perform the aeration process in the first chamber, the conveying pipe may be connected to an air supply device that supplies bubbles. 3 and 4 are views schematically showing an acid device according to an example, respectively, and will be described in detail with reference to them.

The acid device 40 may use a saturation type acid device (see FIG. 3). The saturator type acid device is equipped with a pressure dissolution chamber 41 therein, and water is supplied to the saturator 42 through the saturator 42 and the water supply pipe 44 to which the supply pipe 43 and the water supply pipe 44 are connected. It may include a pump 45 for supplying, a compressor 46 for supplying high-pressure air to the saturator 42 through the supply pipe 43 and the discharge pipe 47. The discharge pipe 47 is connected to the conveying pipe, and when sludge is conveyed to the first chamber through the conveying pipe, air may be supplied into the first chamber.

In addition, the mixer 50 may use a mixer type diffuser (see FIG. 4). The mixer-type air diffuser is connected to a supply pipe 51 through which air and water are mixed and supplied, to receive air bubbles supplied from the pump 52 and pump 52 connected to the supply pipe 51 to form bubble water through pumping. It may include a mixer 54 and a discharge pipe 55 provided with a mixing chamber 53 therein. The discharge pipe 55 is connected to the conveying pipe, and when sludge is conveyed to the first chamber through the conveying pipe, air may be supplied into the first chamber.

5 is a view schematically showing an anomax reaction tank 100 according to an embodiment of the present invention. Referring to Figure 5, the present invention is a first control unit 60 for measuring the concentration of the nitrogen compound contained in the water to be treated is supplied to the interior of the first chamber 10; And a second control unit 70 for controlling the supply flow rate of the treated water so that the concentration of ammonium ions (NH ₄ ⁺ ) contained in the treated water supplied into and received inside the first chamber 10 maintains a predetermined range. ; May further include.

The first control unit 60 measures the concentration of the nitrogen compound contained in the water to be treated, which is supplied into the first chamber 10 and received. At this time, the nitrogen compound is an ammonium ion (NH ₄ ^+), nitrite ion (Nitrite, NO ₂ ^-) and nitrate ion (Nitrate, NO ₃ ^-) means the various salt forms including the same and, and the concentration of nitrogen compounds is known Various sensors can be used. Specifically, as shown in FIG. 6, the first control unit 60 includes a first measurement unit 61 for measuring the concentration of ammonium ion (NH ₄ ⁺ ); A second measurement unit 62 for measuring the concentration of nitrite ions (Nitrite, NO ₂ ⁻ ); And nitrate ions ^- the third measurement section 63 for measuring the concentration of (Nitrate, NO _3); can include. The first measurement unit 61 may include a first operation unit that calculates a decrease in the amount of ammonium ion (NH ₄ ⁺ ) by measuring a change in concentration of ammonium ion (NH ₄ ⁺ ) within a unit time, and may include a second measurement unit. 62, and nitrite ions in a unit time (nitrite, NO ₂ ^-), nitrite ions by measuring the change in concentration of (nitrite, NO ₂ ^-), a second computing unit for computing the amount of; can include, and the third measurement section 63 is nitrate ion in a unit of time a third computing unit for computing the amount of ^{- -} (nitrate, NO ₃₎ nitrate ions by measuring the change in concentration of (nitrate, NO _3); can include.

Aerobic ammonium If the oxidation bacteria and Ana Comox microorganisms are mixed in a reaction tank, it is important to properly control the activity of two microorganisms, simply ammonium ion (NH ₄ ⁺⁾ decrease compared to nitrite ion (Nitrite, NO ₂ ^-) of Nitrogen removal efficiency may be lowered by controlling the process conditions with only the amount of produced. Nitrogen containing ^- a first control unit 60 is a nitrate ion (Nitrate, NO ₃₎ using a first measuring unit 61 and second measurement unit 62 and the third measuring unit 63 in order to solve this problem, By measuring the concentration change of the compound and controlling the supply amount of the treated water flowing into the first chamber 10 through the second control unit 70 to be described later from the measured concentration value of the nitrogen compounds, the nitrogen removal efficiency is improved. You can.

The second control unit 70 exchanges data with the first control unit 60 and controls the supply flow rate of the water to be treated using the concentration of nitrogen compounds measured by the first control unit 60. Since the activity of Ammonium Oxidizing Bacteria (ANB) and Anamox bacteria in the Anamox reactor 100 cannot always be maintained uniformly, the amount of removal of ammonium ions (NH ₄ ⁺ ): nitrite ions ( from, it occurs if they are not the first, the first chamber 10 ammonium oxidizing bacteria in the (ammonium oxidizing bacteria, AOB) Ana Comox microorganism (Annamox bacteria) than:) ratio is from about 1 generation amount of the ^- Nitrite, nO ₂ permitting activity, AOB the ammonium ion (NH ₄ ⁺⁾ nitrite ions (nitrite, NO ₂ ^{-) -} a, and at the same time Ana Comox microorganisms ammonium ion converted to (NH ₄ ⁺⁾ and nitrite ion (nitrite, NO ₂₎ It is not almost generated in the ^{accumulated-response} to nitrite ion (nitrite, nO ₂₎ in the so discard switching to nitrogen gas, the first chamber (10). In this case, it is necessary to control the operation in the direction of increasing the ammonium ion (NH ₄ ⁺ ), and the second control unit 70 controls the pump, valve, etc. connected to the water supply pipe 11 to increase the water supply amount. do. When the concentration of ammonium ions (NH ₄ ⁺ ) in the first chamber 10 is controlled by controlling the process in this direction, the activity of nitrite oxidizing bacteria (NOB) is 1) high free ammonia (Free Ammonia) ) And 2) high alkalinity, so that the efficiency of the operation process can be improved to increase the nitrogen removal effect.

Specifically, the second control unit 70 may control the supply flow rate of the water to be treated through Equation 1 below.

[Equation 1]

That is, when the value calculated by Equation 1 is 0.7 or more, the flow rate of the water to be treated is controlled to maintain the concentration of the ammonium ion (NH ₄ ⁺ ) in the first chamber 10 at 50 to 100 mg / L, When the value calculated by Equation 1 is less than 0.7, the flow rate of the water to be treated is controlled to maintain the concentration of ammonium ion (NH ₄ ⁺ ) in the first chamber 10 at 100 to 250 mg / L. These reference values can be applied in the process of water treatment with an ammonium ion concentration of 600 to 1,000 ppm introduced, and are calculated from various experiments.

Next, a water treatment method using the above-described Anamox reactor 100 will be described. In describing this, redundant descriptions will be omitted.

The water treatment method according to an embodiment of the present invention, as a water treatment method for removing nitrogen contained in the water to be treated using the above-described Anamox reaction tank 100, the treated water flowing into the first chamber 10 Stirring, the first step of removing nitrogen by an anomax process; A second step in which the treated water from which nitrogen is removed from the first chamber 10 is supplied to the second chamber 20, and the sludge is precipitated; And a third step in which the sludge precipitated in the second chamber 20 is returned to the first chamber 10. The present invention has the effect of stably maintaining the anamox process in the anamox reaction tank 100 of the SBR method and significantly reducing the hydraulic retention time (HRT). Specifically, a separate sedimentation tank is provided at the rear end of the Anamox reaction tank 100 and appropriately control microorganisms required for the Anamox process, such as Anamox microorganisms, by conveying the precipitated sludge, thereby improving the nitrogen removal effect. It has an effect.

The first step is a step in which the water to be treated is introduced into the first chamber 10 and the anomax process is performed by an anomax microorganism or the like accommodated in the first chamber 10 to remove nitrogen, and the inflow-mixing of the anamox process is performed. -Aeration process is performed. In the second step, the process water is introduced from the first chamber 10 into the second chamber 20, sludge is precipitated in the second chamber 20, and a process of discharging the treated water occurs. The third step is a step in which the sludge precipitated in the second step is conveyed to the first chamber 10, wherein air bubbles are supplied to the first chamber 10 together with the sludge by the spreaders 40 and 50. The mixing and aeration process of the water to be treated may be more actively caused by the supplied air bubbles.

In this specification, only a few examples of the various embodiments performed by the present inventors are described, but the technical spirit of the present invention is not limited to or limited thereto, and can be variously implemented by a person skilled in the art.

100: Anamox reactor
10: 1st chamber
11: treated water supply pipe
12: stirrer
13: perforated board
20: second chamber
30: return pipe
40: acid device
41: pressure dissolved chamber
42: saturator
43: air supply pipe
44: water supply pipe
45: pump
46: compressor
47: discharge pipe
50: acid device
51: supply pipe
52: pump
53: mixing room
54: mixer
55: discharge pipe
60: first control unit
61: first measurement unit
62: second measurement unit
63: third measurement unit
70: second control unit

Claims (21)

A first chamber having a treated water supply pipe through which treated water is supplied, and accommodating ammonium oxidizing bacteria (OB) and anamox bacteria therein;
A second chamber located at the rear end of the first chamber and sedimenting sludge contained in the water to be treated supplied from the first chamber;
A conveying pipe for conveying the sludge precipitated in the second chamber to the first chamber; And
Injecting air into the conveying tube, characterized in that it comprises an acid device for supplying air bubbles in the first chamber, the Anamox reaction tank. The method of claim 1, wherein the anomax microorganism,
Candidatus Kuenenia, Candidatus Brocadia, Candidatus Anammoxoglobus, Candidatus Jettenia, and Candidatus Scalindua ) Is characterized in that at least one selected from the group consisting of, an anamox reactor. According to claim 1, The first chamber,
An agitator, characterized in that it comprises; a stirrer for stirring the water to be supplied to the inside. The stirrer of claim 3,
An anomax reaction tank characterized by being plural. According to claim 4,
A plurality of stirrers, characterized in that arranged in the up and down, Anamox reactor. The method of claim 5,
An anomax reaction tank, characterized in that a porous plate is disposed between adjacent stirrers placed up and down. The method of claim 6,
Cavity formed in the perforated plate is characterized in that the diameter of 3 ~ 5 cm, the Anamox reaction tank. According to claim 1,
A first control unit for measuring the concentration of nitrogen compounds contained in the water to be treated supplied to the first chamber; And
It characterized in that it comprises; a second control unit for controlling the supply flow rate of the treated water so that the concentration of ammonium ions (NH ₄ ⁺ ) contained in the treated water supplied into and received into the first chamber maintains a predetermined range. Anamox Reactor. According to claim 8, The first control unit,
A first measurement unit for measuring the concentration of ammonium ion (NH ₄ ⁺ );
Part 2 measurement for measuring the concentration of ^- the nitrite ion (Nitrite, NO _2); And
, Ana Comox reaction tank, comprising a step of including, ^- nitrate (Nitrate, NO ₃₎ a third measuring section for measuring the concentration of. The method of claim 9, The first measurement unit,
Ammonium ion (NH ₄ ⁺⁾ by measuring the change in concentration of the ammonium ion the first computing unit for computing the amount of reduction of (NH ₄ ⁺⁾ in a unit time;, Ana Comox reaction tank, comprising a step of including. The method of claim 9, The second measurement unit,
(Nitrite, NO ₂ ^-) nitrite ions by measuring the change in concentration of (Nitrite, NO ₂ ^-) a second computing unit for computing the amount of nitrite ion in a unit of time;, Ana Comox reactor comprises a. The method of claim 9, The third measurement unit,
(Nitrate, NO ₃ ^-) nitrate ions by measuring the change in concentration of (Nitrate, NO ₃ ^-) a third calculating section for calculating the amount of the nitrate ion in a unit of time;, Ana Comox reactor comprises a. The method of claim 9, The second control unit,
It characterized in that to control the supply flow rate of the water to be treated through the value calculated by Equation 1, Anamox reactor.
[Equation 1]

The method of claim 13, The second control unit,
When the value calculated by Equation 1 below is 0.7 or more, characterized in that to control the flow rate of the water to be treated to maintain the concentration of ammonium ion (NH ₄ ⁺ ) in the chamber at 50 ~ 100mg / L, an anamox reactor .
[Equation 1]

The method of claim 13, The second control unit,
When the value calculated by the following Equation 1 is less than 0.7, characterized in that the flow rate of the water to be treated is maintained to maintain the concentration of ammonium ions (NH ₄ ⁺ ) in the chamber at 100 to 250 mg / L, the Anamox reactor .
[Equation 1]

In the water treatment method for removing nitrogen contained in the water to be treated using the Anamox reactor of claim 1,
A first step of stirring the treated water flowing into the first chamber and removing nitrogen by an anamox process;
A second step in which the treated water from which nitrogen is removed from the first chamber is supplied to the second chamber, and the sludge is precipitated; And
And a third step in which the sludge precipitated in the second chamber is returned to the first chamber. The method of claim 16, wherein the first step,
The water treatment method, characterized in that the water to be treated is stirred by a stirrer provided in the first chamber. The stirrer of claim 17,
A water treatment method, characterized in that it is plural. The method of claim 18,
A plurality of agitators, characterized in that disposed up and down, water treatment method. The method of claim 19,
A water treatment method, characterized in that a porous plate is disposed between adjacent stirrers arranged up and down. The method of claim 20,
The cavity formed in the perforated plate is 3-5 cm in diameter, characterized in that the water treatment method.

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