KR102432087B1 - Organic matter and nitrogen treatment system using advanced UV treatment and low power consumption stirrer - Google Patents

Abstract

The present invention is an organic matter and nitrogen treatment system using a high-ultraviolet UV treatment and low-power agitator capable of treating difficult-to-decompose organic substances in raw water based on ultraviolet light and treating nitrogen in raw water with an anoxic tank and an aeration tank using a low-power stirring device. do. The organic matter and nitrogen treatment system using the advanced UV treatment and low-power stirring device according to an embodiment of the present invention is a hydrogen peroxide supply unit 120 according to the UV transmittance and hydrogen peroxide concentration of the raw water 1 flowing into the treatment water tank unit 110 from the outside. ) by adjusting the supply amount of hydrogen peroxide (2) and the amount of ultraviolet irradiation of the ultraviolet irradiation unit 130 to generate the primary treated water 3, and the primary treatment according to the ultraviolet transmittance and hydrogen peroxide concentration of the primary treated water 3 After discharging the water (3) or blocking the discharge of the primary treated water (3), the ultraviolet ray for circulating the primary treated water (3) to the treated water tank unit (110) so as to be mixed with the raw water (1). advanced processing device 100; and the organic material of the primary treated water 3 discharged from the ultraviolet advanced treatment device 100 is removed from the anoxic tank 210 , the first aeration tank 220 , and the second aeration tank 230 , respectively. The agitation unit 240 for moving the organic material of the treated water 3 downward, and the organic material of the primary treated water 3 moved downward through the stirring unit 240 is adsorbed and biologically oxidized by microorganisms. By including a; nitrogen treatment device 200 equipped with a string media 250 for generating the secondary treated water 4 by purification through decomposition, while removing the hydrogen peroxide contained in the treated water, the nitrogen in the treated water and organic matter can be efficiently removed.

Description

Organic matter and nitrogen treatment system using advanced UV treatment and low power consumption stirrer}

The present invention relates to a system for treating organic matter and nitrogen using advanced UV treatment and a low-power stirring device, and more particularly, treating the incombustible organic material of raw water based on UV light, and using a low-power stirring device to process raw water into an anaerobic tank and an aeration tank. It relates to an organic matter and nitrogen treatment system using advanced UV treatment and low-power stirring device that can treat nitrogen.

Most of the water purification plants in Korea use river water as their source water, and the pollution of water sources has recently been intensifying due to various pollutants. There is a need to introduce water treatment technology.

Conventionally, water purification methods such as sand filtration and chlorine disinfection have been used after coagulation precipitation. However, the conventional water purification method contains trace organic substances such as new pharmaceutical substances (e.g., carbamazepine, caffeine, ibuprofen) and taste odor inducing substances (e.g., geosmin, 2-methylisobroneol (2-MIB)). There is a limit to the efficient treatment of a drinking water source, and oxidation methods are being studied to overcome this.

On the other hand, among the oxidizing agents applied to water treatment, the OH radical has the highest oxidizing power, and thus an important action is expected for chemical oxidation treatment. Processes for removing harmful substances using OH radicals include ozone/High OH using ozone, ozone/hydrogen peroxide and UV/ozone using UV/UV/hydrogen peroxide, and these processes are called advanced oxidation processes.

In particular, the ultraviolet/hydrogen peroxide process based on ultraviolet light is not only the simplest method in terms of generation of OH radicals among the advanced oxidation processes, but also can expect treatment effects by direct photolysis of ultraviolet rays, and unlike ozone, it is a clean technology because it produces little by-products. is attracting attention as

And compared to water treatment in the UV/hydrogen peroxide process, the treated water that has been treated several times (eg, 2-3 times) has a range of fluctuations in the concentration or composition of residual trace organic substances depending on the treatment conditions in the advanced treatment tank. It can appear large, so it is necessary to be able to adjust the amount of UV irradiation in real time to cope with the quality of the influent water (ultraviolet transmittance).

In addition, in the UV/hydrogen peroxide process, the amount of UV irradiation is adjusted in order to continuously secure a certain level of UV AOP treated water (hereinafter referred to as 'treated water') that has removed 90% or more of the initial concentration of detected pharmaceuticals including antibiotics. While monitoring the UV transmittance of raw water and treated water, it is necessary to increase or decrease the input concentration of hydrogen peroxide.

In the ultraviolet/hydrogen peroxide process, the hydrogen peroxide used for the advanced oxidation treatment may remain in the effluent (treated water) of the advanced treatment tank, thereby interfering with the activity of bacteria in the biological treatment process.

And since it is difficult to discharge foreign substances generated when washing the advanced treatment tank where the ultraviolet/hydrogen peroxide process has been completed, there is a problem that foreign substances may be included in the treated water by the ultraviolet/hydrogen peroxide process to be performed later.

Meanwhile, in modern society, industrialization and urbanization are accelerating day by day, and environmental pollution caused by it is emerging as a big problem to be solved in modern society. In particular, since wastewater such as sewage, wastewater, and sewage discharged from homes or factories among environmental pollutants contains components harmful to the human body, such as nitrogen, phosphorus, and organic matter, a facility for purifying and discharging it is essential. .

Advanced treatment refers to a treatment method that removes various organic substances such as phosphorus and nitrogen, as well as high-concentration nutrient salts contained in such wastewater. When it is purified, it is called advanced treatment. Such advanced treatment includes a physicochemical treatment method such as a coagulation precipitation method, an activated carbon adsorption method, an ozone oxidation method, a membrane separation method, and an electrolytic treatment method, and a biological treatment method such as biological denitrification and dephosphorization. Among these advanced treatment methods, the biological treatment method is widely used at home and abroad as the main treatment process for treating wastewater because it has more cost-effective treatment efficiency than the physical and chemical treatment method.

And, in the wastewater treatment system based on the biological treatment method, an anoxic tank in which nitrogen is released and organic matter is removed from wastewater and an aeration tank (aerobic tank) in which organic matter is removed using oxygen are configured. Although this wastewater treatment system removes nitrogen and organic matter contained in wastewater based on the conventional biological treatment method, nitrogen in biologically treated wastewater with a low load of nitrogen and organic matter shows different properties depending on the winter and summer seasons. , there was a problem in that it was difficult to continuously reduce wastewater annually.

In addition, an agitator such as a propeller is provided in the anaerobic tank or the aeration tank to agitate the wastewater. However, in the case of the wastewater having a low specific gravity, the agitation by the conventional stirrer stirs only the nearby wastewater of the agitator. Or there was a problem that the dead zone was generated.

On the other hand, as a prior art for a wastewater treatment system based on a biological treatment method using a string contact oxidation tank that removes organic matter through adsorption and oxidative decomposition by microorganisms, Republic of Korea Utility Model Publication No. 20-0257303 (contaminated rivers and lakes) Purification device) and Republic of Korea Patent Publication No. 10-1393533 (a method of purifying polluted rivers and lakes using a draft tube type string-type microorganism contact filter media purification device to which various diffusion methods are applied) have been disclosed.

The prior art is a device based on a biological treatment method that removes organic matter from wastewater through adsorption and oxidative decomposition by microorganisms using a string media, but it is difficult to treat wastewater showing different nitrogen properties depending on the winter and summer seasons, The unit used was not equipped with a stirrer, so there was a problem in that the treatment efficiency of organic matter suspended in the wastewater was lowered.

Accordingly, there is a need to develop a system that can simultaneously solve the problems of the ultraviolet/hydrogen peroxide process in which hydrogen peroxide may remain in the treated water and the problems of the biological treatment method-based wastewater treatment system in which the organic matter treatment efficiency of the wastewater is poor.

Republic of Korea Patent Publication No. 10-1306155 Republic of Korea Registered Utility Model Publication No. 20-0257303 Republic of Korea Deungreuk Patent Publication No. 10-1393533

The present invention has been devised to solve the above problems, and is irradiated with ultraviolet rays so that raw water has a UV transmittance of a certain level or more to generate primary treated water from which hydrogen peroxide is removed, and is moved downward through low-power stirring. An object of the present invention is to provide a system for treating organic matter and nitrogen using advanced UV treatment and low-power stirring device that can purify suspended matter in primary treated water through adsorption and oxidative decomposition by microorganisms.

In addition, the present invention relates to the ultraviolet transmittance of the primary treated water and organic matter and nitrogen using a low-power stirring device that can be reprocessed by circulating the primary water when the hydrogen peroxide concentration is less than or equal to or less than the preset concentration. An object of the present invention is to provide a processing system.

In addition, an object of the present invention is to provide a system for treating organic matter and nitrogen using a low-power stirring device and an advanced UV treatment that can remove nitrogen by operating the aeration tank as an anoxic tank according to the nitrogen concentration of the primary treated water.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

As a technical means for achieving the above object, the organic matter and nitrogen treatment system using the advanced ultraviolet treatment and low-power stirring device according to an embodiment of the present invention is raw water (1) flowing into the treatment water tank unit 110 from the outside. According to the ultraviolet transmittance and hydrogen peroxide concentration of the hydrogen peroxide supply unit 120, the supply amount of hydrogen peroxide (2) and the ultraviolet irradiation amount of the ultraviolet irradiation unit 130 are adjusted to produce primary treated water (3), and the first treated water (3) The primary treated water (3) is discharged or mixed with the raw water (1) after discharging the primary treated water (3) or blocking the discharge of the primary treated water (3) according to the UV transmittance and hydrogen peroxide concentration of Ultraviolet advanced treatment device 100 for circulating to the treatment water tank unit (110); and the organic material of the primary treated water 3 discharged from the ultraviolet advanced treatment device 100 is removed from the anoxic tank 210 , the first aeration tank 220 , and the second aeration tank 230 , respectively. The agitation unit 240 for moving the organic material of the treated water 3 downward, and the organic material of the primary treated water 3 moved downward through the stirring unit 240 is adsorbed and biologically oxidized by microorganisms. It includes a;

And the ultraviolet advanced treatment device 100, based on the ultraviolet transmittance of the raw water (1), the control unit 180 for adjusting the supply amount and ultraviolet irradiation amount of the hydrogen peroxide (2); may include.

In addition, the control unit 180, when the ultraviolet transmittance of the primary treated water 3 is less than or equal to the preset transmittance, or the hydrogen peroxide (2) concentration is greater than or equal to the preset concentration, the primary treated water 3 is converted to the nitrogen treatment device 200 ) can be blocked from being discharged, and the primary treated water 3 can be circulated to the treated water tank 110 .

And the ultraviolet advanced treatment device 100 is installed in the circulation pipe 151 and the circulation pipe 151 providing a circulation path of the primary treated water 3 and is operated by the control unit 180 to operate the primary treated water ( 3) may include a;

In addition, when the ultraviolet transmittance of the primary treated water 3 is less than or equal to a preset transmittance, the control unit 180 blocks the primary treated water 3 from being discharged to the nitrogen treatment device 200 , while the ultraviolet irradiation unit 130 . ) from which UV rays can be additionally generated.

And the ultraviolet advanced treatment device 100, the primary treatment water (3) to block the discharge from the nitrogen treatment device 200, the opening and closing means 117 provided in the treatment water tank unit 110; may include; have.

In addition, the nitrogen treatment apparatus 200 is configured such that the first aeration tank 220 and the second aeration tank 230 are operated as an aeration tank or anoxic tank based on the nitrate nitrogen concentration and the ammonia nitrogen concentration of the primary treated water 3 . a control unit 270 to control; and a sensor unit 280 measuring the nitrate nitrogen concentration and the ammonia nitrogen concentration of the primary treated water 3 and transmitting the measured nitrate nitrogen concentration to the controller 270 .

And the control unit 270, when the nitrate nitrogen concentration of the primary treated water 3 flowing into the first aeration tank 220 or the second aeration tank 230 measured from the sensor unit 280 is equal to or greater than a preset concentration, The first aeration tank 220 or the second aeration tank 230 may be controlled to operate as an anaerobic tank.

In addition, the control unit 270, when the ammonia nitrogen concentration of the primary treated water 3 introduced into the first aeration tank 220 or the second aeration tank 230 measured from the sensor unit 280 is equal to or greater than a preset concentration , the first aeration tank 220 or the second aeration tank 230 may be controlled to operate as an aeration tank.

And the stirring unit 240, the suction member 241 in which one or more suction ports 241a are formed so that the organic material of the primary treated water 3 is sucked; The upper part is connected to the suction member 241, and the organic material of the primary treated water 3 sucked through the suction port 241a is opened to flow inside, and the organic material of the introduced primary treated water 3 is introduced. The outlet 243 is formed in the lower portion so that this is discharged, the means for driving the water flow generating means 244 is built-in, the duct 242 in which a part of the diameter is expanded; and a water current generating means 244 installed in the duct 242 and generating a water flow so that the organic material of the primary treated water 3 introduced into the duct 242 moves downward.

According to an embodiment of the present invention, while removing hydrogen peroxide contained in the treated water, nitrogen and organic matter in the treated water can be efficiently removed.

And according to an embodiment of the present invention, by circulating the treated water from the advanced UV treatment device, it is possible to obtain the treated water from which the UV transmittance and hydrogen peroxide have been removed above a certain level.

In addition, according to an embodiment of the present invention, by operating the aeration tank as an anoxic tank according to the nitrogen concentration of the treated water discharged from the ultraviolet advanced treatment device, the nitrogen of the raw water having different nitrogen properties according to the winter and summer seasons is efficiently treated can do.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

1 is a view for showing a system for treating organic matter and nitrogen using a high-level UV treatment and a low-power stirring device according to an embodiment of the present invention.
FIG. 2 is a view for showing the configuration of the advanced UV treatment device in which the treated water discharge pipe is closed.
3 is a view for showing the configuration of an advanced UV treatment device with an open treated water discharge pipe.
4 is a view for showing the configuration of a nitrogen treatment apparatus.
5 is a view for showing the detailed configuration of the stirring unit and the flow of raw water.
6 is a view for showing the detailed configuration of the string media and the flow of raw water.
7 is a view for showing a control configuration of a control unit configured in the nitrogen treatment apparatus.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, since the description of the present invention is only an embodiment for structural or functional description, the right (the scope of the present invention) should not be construed as being limited by the embodiment described in the text. That is, the embodiment is subject to various changes Since this is possible and can have various forms, it should be understood that the scope of the present invention includes equivalents that can realize the technical idea.In addition, the object or effect presented in the present invention must include all of the object or effect of the present invention. It is not meant to include only such effects, so the scope of the present invention should not be construed as being limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as being “connected to” another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. On the other hand, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the specified feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in a commonly used dictionary should be interpreted as having the meaning consistent with the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Hereinafter, the organic matter and nitrogen treatment system 10 (hereinafter, referred to as “organic matter and nitrogen treatment system 10”) using a high-ultraviolet light treatment and low-power stirring device according to an embodiment of the present invention shown in FIG. 1 . ) for convenience of explanation, it will be divided into a UV advanced treatment device 100, in which the process is performed first by making the front end, and a nitrogen treatment device 200, in which the post-processing of the UV high processing device 100 is performed by forming a rear end.

Accordingly, it will be preferable that the advanced UV treatment device 100 and the nitrogen treatment device 200 be understood as devices constituting the organic matter and nitrogen treatment system 10 which is one system.

<Ultraviolet advanced processing device>

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the ultraviolet advanced processing apparatus 100 according to an embodiment of the present invention.

FIG. 2 is a view to show the configuration of the advanced UV treatment device in which the treated water discharge pipe is closed, and FIG. 3 is a view to show the configuration of the advanced UV treatment device in which the treated water discharge pipe is opened.

2 to 3 , the advanced UV treatment device 100 according to an embodiment of the present invention includes a treatment water tank unit 110 , a hydrogen peroxide supply unit 120 , an UV irradiation unit 130 , and a UV transmittance sensor 140 . , a circulation unit 150 , a hydrogen peroxide sensor 160 , a drain unit 170 and a control unit 180 .

The treated water tank 110 includes a treated water tank 111, a raw water inlet pipe 114 and a treated water outlet pipe ( 115) is provided, and a pair of foreign material discharge pipes 116 are further provided for discharging foreign substances.

The treated water tank 111 is provided with a raw water inlet pipe 114 on one side so that the raw water 1 flows into it, and a treated water discharge pipe 115 for discharging the primary treated water 3 is provided on the other side.

In addition, the treatment water tank 111 has an ultraviolet irradiation unit 130 installed therein, and an inner wall 112 is provided between the ultraviolet irradiation unit 130 and one side wall orthogonal to the treated water discharge pipe 115 .

The inner wall 112 is positioned between the ultraviolet irradiation unit 130 and one side wall of the treatment water tank 111, and is formed to extend from the upper side to the lower side of the treatment water tank 111 so that the inside of the treatment water tank 111 is partially partitioned. .

The inner wall 112 is provided so that the raw water 1 flowing into the treated water tank 111 through the raw water inlet pipe 114 is provided at a position parallel to the raw water inlet pipe 114 and a treated water discharge pipe 115 ) to increase the UV irradiation time of the raw water 1 while preventing it from being highly oxidized by the UV irradiation unit 130 by flowing in the shortest distance.

In addition, the treatment water tank 111 is provided with a step 113 between the pair of foreign material discharge pipe 116 .

The step 113 allows foreign substances generated during washing of the treated water tank 111 , the raw water inlet pipe 114 , and the treated water outlet pipe 115 to move toward the foreign material outlet pipe 116 .

The step 113 is provided so that foreign substances falling to the lower side of the treated water tank 111 through the washing of the treated water tank 111, the raw water inlet pipe 114 and the treated water outlet pipe 115 are diagonally formed on both sides ( This is to guide the movement toward the foreign material discharge pipe 116 along the 113a).

The raw water inlet pipe 114 is provided on one side of the treatment water tank 111 , and allows the raw water 1 to flow into the treatment water tank 111 .

The treated water discharge pipe 115 is provided on the other side of the treated water tank 111 , and after being highly oxidized through the ultraviolet rays of the ultraviolet irradiation unit 130 , one that passes through one side wall and the inner wall 112 of the treated water tank 111 . The tea treated water 3 is discharged from the treatment water tank 111 .

The foreign material discharge pipe 116 is provided as a pair to be installed on both sides of the treatment water tank 111 , and the foreign material moving along both side portions 113a of the step 113 is discharged from the treatment water tank 111 .

The foreign material discharge pipe 116 is provided with a drain 170 for discharging foreign substances, and as the foreign material discharge pipe 116 is provided as a pair, it is preferable that the drain 170 is also provided as a pair.

The drain 170 is provided to facilitate the discharging of foreign substances, and the method of discharging the foreign substances by the drain 170 is typical, so a detailed description thereof will be omitted.

On the other hand, the treated water tank unit 110 is further provided with an opening/closing means 117 to block the discharge of the primary treated water 3 or the discharge of the primary treated water 3 .

The opening/closing means 117 may be an opening/closing valve provided in the treated water discharge pipe 115 and operated by the control unit 180 to open or close the treated water discharge pipe 130. However, the opening/closing means 117 is not limited to an on-off valve, and may be implemented by other means capable of opening and closing the treated water discharge pipe 115 .

The opening/closing means 117 has a UV transmittance of the treated water 3 measured by a second UV transmittance sensor 142 to be described later is less than or equal to a preset transmittance (eg, 90% UV transmittance), and a first hydrogen peroxide sensor to be described later When the hydrogen peroxide concentration of the primary treated water 3 measured by 161 is greater than or equal to a preset concentration (eg, 0 to 6.2 mg/L), the primary treated water 3 is discharged from the treated water tank 111 . closed to prevent

And the opening/closing means 117 has a UV transmittance of the treated water 3 measured by a second UV transmittance sensor 142 to be described later is less than or equal to a preset transmittance, and the treated water measured by a first hydrogen peroxide sensor 161 to be described later ( When the hydrogen peroxide concentration of 3) is less than or equal to the preset concentration, the primary treated water 3 is opened to discharge from the treatment water tank 111 .

The hydrogen peroxide supply unit 120 is provided to mix the hydrogen peroxide 2 with the raw water 1 to be introduced into the treatment water tank 111 through the raw water inlet pipe 114 .

This hydrogen peroxide supply unit 120 is installed in the raw water inlet pipe 114 and supplies the hydrogen peroxide 2 through the raw water inlet pipe 114, thereby moving toward the inside of the treatment water tank 111 along the raw water inlet pipe 114. Let the raw water (1) be mixed with hydrogen peroxide (2).

The ultraviolet irradiation unit 130 irradiates ultraviolet rays to the raw water 1 mixed with hydrogen peroxide 2 that is moved to the inside of the treatment water tank 111 to generate the highly oxidized treated water 3 .

The ultraviolet irradiation unit 130 may be axially coupled to the treatment water tank 111 to change the ultraviolet irradiation angle and direction.

And the ultraviolet irradiation unit 130 may be movably coupled to the treatment water tank 111 to change the ultraviolet irradiation position. For example, the ultraviolet irradiation unit 130 may be moved toward the other side wall or inner wall 112 of the treatment water tank 111 rather than the position shown in FIGS. 2 to 3 .

In addition, the ultraviolet irradiation unit 130 not only irradiates the raw water 1 with ultraviolet rays, but also circulates through the raw water 1 and the circulation unit 150 at the mixed water generating point 111a and then discharged into the treated water tank 111 . The mixed water is highly oxidized by irradiating ultraviolet rays to the mixed water generated through mixing between the circulating treated water 3a to be used.

The ultraviolet transmittance sensor 400 includes a first ultraviolet transmittance sensor 141 and a second ultraviolet transmittance sensor 142 to measure the ultraviolet transmittance of the raw water 1 and the ultraviolet transmittance of the primary treated water 3 .

The first ultraviolet transmittance sensor 141 is provided in the raw water inlet pipe 114 to measure the ultraviolet transmittance of the raw water 1 .

The first UV transmittance sensor 141 measures the UV transmittance of the raw water 1 before the hydrogen peroxide 2 supplied from the hydrogen peroxide supply unit 120 is mixed.

As such, the first ultraviolet transmittance sensor 141 measures the ultraviolet transmittance of the raw water 1 before mixing the hydrogen peroxide 2 according to the ultraviolet transmittance of the raw water 1 measured from the first ultraviolet transmittance sensor 141 The control unit 180 is to adjust the amount of hydrogen peroxide (2) supply of the hydrogen peroxide supply unit 120 and the ultraviolet irradiation amount of the ultraviolet irradiation unit (130).

The second UV transmittance sensor 142 is provided in the treated water discharge pipe 120 to measure the UV transmittance of the treated water 3 .

The second UV transmittance sensor 142 measures the UV transmittance of the treated water 3 remaining in the treated water discharge pipe 115 without being discharged by the opening/closing means 117 .

As such, the second UV transmittance sensor 142 measures the UV transmittance of the treated water 3 by the control unit 180 according to the UV transmittance of the treated water 3 measured from the second UV transmittance sensor 142. This is to determine whether the primary treated water 3 is circulated.

As a specific example, when the ultraviolet transmittance of the primary treated water 3 from the second ultraviolet transmittance sensor 142 is measured to be less than or equal to a preset transmittance (eg, 90% ultraviolet transmittance), the control unit 180 controls the opening/closing means ( 117) to block the primary treated water 3 from being discharged through the treated water discharge pipe 115, and by operating the circulation unit 150, the circulating treated water 3a is directed toward the mixed water generating point 111a. let it circulate

On the other hand, when the ultraviolet transmittance of the primary treated water 3 is measured from the second ultraviolet transmittance sensor 142 to be equal to or greater than the preset transmittance, the control unit 180 omits the operation of the circulation unit 150, and the opening/closing means The primary treated water 3 through 117 is discharged through the treated water discharge pipe 115 .

In addition, the second UV transmittance sensor 142 measuring the UV transmittance of the primary treated water 3 is controlled by the control unit ( 180) is for determining whether the ultraviolet irradiation unit 130 generates ultraviolet rays.

As a specific example, when the ultraviolet transmittance of the primary treated water 3 from the second ultraviolet transmittance sensor 142 is measured to be less than or equal to a preset transmittance, the control unit 180 controls the primary treated water through the opening/closing means 117 ( 3) is prevented from being discharged through the treated water discharge pipe 115, and the ultraviolet light is generated from the ultraviolet irradiation unit 130, and the primary treated water 3 remaining in the treated water tank 111 by the opening/closing means 117. to be irradiated with UV light.

On the other hand, when the ultraviolet transmittance of the primary treated water 3 is measured from the second ultraviolet transmittance sensor 142 to be equal to or greater than the preset transmittance, the control unit 180 omits the operation of the ultraviolet irradiation unit 130, and the opening/closing means The primary treated water 3 through 117 is discharged through the treated water discharge pipe 115 .

That is, when it is measured from the second ultraviolet transmittance sensor 142 that the ultraviolet transmittance of the primary treated water 3 is less than or equal to a preset transmittance, the control unit 180 determines whether the primary treated water 3 is circulated or whether the ultraviolet irradiation unit ( 130), it is possible to reprocess the primary treated water (3) by determining whether or not ultraviolet rays are generated.

Furthermore, when the UV transmittance of the primary treated water 3 is measured from the second UV transmittance sensor 142 to be less than or equal to a preset transmittance, the control unit 180 circulates the primary treated water 3 while circulating the UV irradiation unit It is also possible to reprocess the primary treated water 3 so that ultraviolet rays are generated from 130 .

The circulation unit 150 is blocked through the opening/closing means 117 and circulates the primary treated water 3 remaining in the treatment water tank 111 to be reprocessed by the UV irradiation unit 130 , a circulation pipe 151 . and a circulation pump 152 are provided.

The circulation pipe 151 has an inlet forming one end between the inner wall 112 and one side wall of the treatment water tank 111, and the outlet forming the other end is the other wall of the treatment water tank 111 and the UV irradiation unit 130 ) to be positioned between the inlet and the outlet, and consists of a pipe connecting the inlet and the outlet.

The circulation pump 152 is installed in the circulation pipe 151, is operated by the control unit 180 to allow the primary treated water 3 to flow in through the inlet of the circulation pipe 151, and then the introduced circulation treated water (3a) is circulated along the pipe of the circulation pipe 151 toward the outlet, and the circulating treated water 3a is discharged to the mixed water generating point 111a through the outlet of the circulation pipe 151.

The hydrogen peroxide sensor 160 includes a first hydrogen peroxide sensor 161 and a second hydrogen peroxide sensor 162 to measure the hydrogen peroxide concentration of the primary treated water 3 and the hydrogen peroxide concentration of the mixed water.

The first hydrogen peroxide sensor 161 is provided in the treated water discharge pipe 115 to measure the hydrogen peroxide concentration of the primary treated water 3 .

The first hydrogen peroxide sensor 161 measures the hydrogen peroxide concentration of the treated water 3 remaining in the treated water discharge pipe 115 without being discharged by the opening/closing means 117 .

As such, the first hydrogen peroxide sensor 161 measures the hydrogen peroxide concentration of the primary treated water 3 is the control unit 180 according to the hydrogen peroxide concentration of the primary treated water 3 measured from the first hydrogen peroxide sensor 161 ) is to determine whether to circulate the primary treated water (3).

As a specific example, when the hydrogen peroxide concentration of the primary treated water 3 from the first hydrogen peroxide sensor 161 is measured to be greater than or equal to a preset concentration (eg, 0 to 6.2 mg/L), the control unit 180 controls the opening/closing means ( 117) to block the primary treated water 3 from being discharged through the treated water discharge pipe 115, and by operating the circulation unit 150, the circulating treated water 3a is directed toward the mixed water generating point 111a. let it circulate

On the other hand, when it is measured from the first hydrogen peroxide sensor 161 that the hydrogen peroxide concentration of the primary treated water 3 is equal to or greater than a preset concentration, the control unit 180 omits the operation of the circulation unit 150, and the opening/closing means ( 117) so that the primary treated water 3 is discharged through the treated water discharge pipe 115.

The second hydrogen peroxide sensor 162 is provided on the other side wall of the treatment water tank 111 and measures the hydrogen peroxide concentration of the mixed water generated at the mixed water generating point 111a.

Here, the mixed water is the raw water introduced into the treated water tank 111 through the raw water inlet pipe 114 at the mixed water generating point 111a formed between the other side wall of the treated water tank 111 and the ultraviolet irradiation unit 130 ( 1) and the circulating treated water 3a discharged through the outlet of the circulation pipe 151 are mixed.

In this way, the second hydrogen peroxide sensor 162 measures the hydrogen peroxide concentration of the mixed water, the control unit 180 controls the supply amount of hydrogen peroxide (2) according to the hydrogen peroxide concentration of the mixed water measured from the second hydrogen peroxide sensor 162 is to do

As a specific example, when the hydrogen peroxide concentration of the mixed water is measured from the second hydrogen peroxide sensor 162 to a preset concentration (eg, 0 to 6.2 mg/L) or more, the control unit 180 reduces the hydrogen peroxide concentration of the mixed water For this purpose, the supply amount of the hydrogen peroxide supply unit 120 is reduced, and thus, hydrogen peroxide is not contained in the primary treated water 3 discharged from the treatment water tank 111 through a predetermined concentration or more.

The advanced UV treatment device 100 can obtain the primary treated water 3 having a hydrogen peroxide 2 at a predetermined concentration or less while having a UV transmittance of a certain level or more through the above configurations.

On the other hand, the configuration of the control unit 180 of the advanced UV treatment apparatus 100 may be omitted, and the components of the advanced UV treatment device 100 are to be controlled by the control unit 270 of the nitrogen treatment device 200 to be described later. may be

<Nitrogen treatment device>

Hereinafter, with reference to the accompanying drawings for the nitrogen treatment apparatus 200 according to an embodiment of the present invention for removing nitrogen and organic matter in the primary treated water 3 discharged from the ultraviolet advanced treatment apparatus 100 Let me explain in detail.

Figure 4 is a view for showing the configuration of the nitrogen treatment device, Figure 5 is a view for showing the detailed configuration and flow of raw water of the stirring unit, Figure 6 is a view for showing the detailed configuration and flow of raw water of the string media section and FIG. 7 is a view for showing the control configuration of the control unit configured in the nitrogen treatment apparatus.

4 to 7, the nitrogen treatment apparatus 200 according to an embodiment of the present invention is an anaerobic tank 210 to treat nitrogen of the primary treated water 3 based on low-power stirring and string media. The first aeration tank 220 , the second aeration tank 230 , the stirring unit 240 , the string media unit 250 , the circulation unit 260 , the control unit 270 and the sensor unit 280 are configured to include.

The anoxic tank 210 is configured for denitrification of nitrate nitrogen in the primary treated water 3 introduced from the outside, and includes an anaerobic tank unit 211 and a raw water inlet pipe 213 .

The anaerobic tank unit 211 is provided with a first inner wall 212 that is provided with a stirring unit 240 and a pair of string-shaped media units 250 installed therein, and is formed extending from the upper side to the lower side to partially partition the inside. .

The first inner wall 212 is one side wall of the anaerobic tank unit 211 through which a first connection pipe 223, which will be described later, passes through and a pair of string media part 250 adjacent to the one side wall of the string media part 250. provided between

The provision of the first inner wall 212 is such that the inside of the anaerobic tank unit 211 is partially partitioned, so that the primary treated water 3 flowing into the anaerobic tank unit 211 through the raw water inlet pipe 213 is mixed with the stirring unit ( This is to prevent discharge to the first aeration tank 220 through a first connection pipe 223 to be described later by the shortest distance without going through a treatment process by the 240) and the string-like media part 250 .

The raw water inlet pipe 213 passes through the other side wall of the anaerobic tank unit 211 so that the external primary treated water 3 flows into the anaerobic tank unit 211 . Here, the external primary treated water 3 may mean wastewater containing nitrogen, which is biologically treated with a low load of nitrogen and organic matter.

The raw water inlet pipe 213 has an opening/closing means (eg, opening and closing) for blocking the inflow of the primary treated water 3 until the inflow of the primary treated water 3 or the denitrification process of the anoxic tank 210 is completed. valve) may be provided.

The first aeration tank 220 is a configuration for primary purification of the denitrified primary treated water 3 by supplying oxygen to the denitrified primary treated water 3 through the anoxic tank 210. The first aeration tank unit 221 , a first connector 223 , and a first diffuser 224 .

The first aeration tank unit 221 has a stirring unit 240 and a pair of string-shaped media units 250 installed therein, and a second inner wall 222 extending from the upper side to the lower side to partially partition the inside. provided

The second inner wall 222 is a side wall of the first aeration tank unit 221 through which a second connection pipe 233, which will be described later, penetrates, and a string media part 250 adjacent to the one side wall among the pair of string media parts 250 . ) is provided between

The provision of the second inner wall 222 allows the interior of the first aeration tank unit 221 to be partially partitioned, so that it flows into the first aeration tank unit 221 from the anaerobic tank unit 211 through the first connection pipe 223 . The denitrified primary treated water 3 does not go through a treatment process by the stirring unit 240 and the string-shaped media unit 250, and the second aeration tank 230 through a second connection pipe 233 to be described later with the shortest distance. ) to prevent it from being released.

The first connection pipe 223 passes through one side wall of the anaerobic tank unit 211 and the other side wall of the first aeration tank unit 221 and the denitrified primary treated water 3 discharged from the anaerobic tank unit 211 is 1 Let it flow into the aeration tank unit 221 .

This first connection pipe 223 is closed during the denitrification process of the primary treated water 3 from the anoxic tank 210, and when the denitrification process of the primary treated water 3 from the anoxic tank 210 is finished It would be desirable to be open.

To this end, the first connection pipe 223 has an opening/closing means ( It would be desirable to have an on/off valve (eg on/off valve).

The first aeration unit 224 is provided below the first aeration tank unit 221 , and sprays air toward the upper side of the first aeration tank unit 221 , and the denitrified 1 Oxygen is supplied to the tea treated water (3).

Specifically, the first aeration unit 224 injects oxygen-containing air toward the lower side of the stirring unit 240 , thereby moving the denitrified primary treated water 3 to the lower side of the first aeration tank unit 221 . ) to supply oxygen and promote the oxidation of the denitrified primary treated water (3).

In addition, the first aeration unit 224 is moved downward by the stirring unit 240 and discharged to the lower side of the first aeration unit 221 , and then oxygen is discharged toward the lower side of the pair of string-shaped media units 250 . By spraying the contained air, oxygen is supplied to the denitrified primary treated water 3 flowing into the pair of string media 250, and the oxidation of the denitrified primary treated water 3 is reduced. promotes

Furthermore, the first diffuser unit 224 is moved downward by the stirring unit 240 by spraying air toward the lower side of the pair of string-shaped media units 250 , and then the first from the stirring unit 240 . The denitrified primary treated water 3 discharged to the lower side of the aeration tank unit 221 may be guided to move toward the pair of string media 250 .

The second aeration tank 230 is a configuration for secondary purification of the firstly purified primary treated water 3 by supplying oxygen to the firstly purified primary treated water 3 through the first aeration tank 220 . It consists of a second aeration tank unit 231 , a second connection pipe 233 , a second diffuser 234 , and a treated water discharge pipe 235 .

The second aeration tank unit 231 has a stirring unit 240 and a pair of string-shaped media units 250 installed therein, and a third inner wall 232 extending from the upper side to the lower side to partially partition the inside. provided

The third inner wall 232 is between one side wall of the second aeration tank unit 231 through which the treated water discharge pipe 235 penetrates and the one side wall and the adjacent string media part 250 among the pair of string media part 250 . is provided in

The provision of the third inner wall 232 allows the inside of the second aeration tank unit 210 to be partially partitioned, and thus from the first aeration tank unit 221 to the second aeration tank unit 231 through the second connection pipe 233 . The first purified primary treated water 3 flowing in is discharged to the outside through the treated water discharge pipe 235 in the shortest distance without going through a treatment process by the stirring unit 240 and the string-shaped media unit 250 . is to prevent Here, the outside may be a facility and device in which the secondary treated water 4 is discharged or a facility and device that stores the secondary treated water 4 .

The second connection pipe 233 penetrates one side wall of the first aeration tank unit 221 and the other side wall of the second aeration tank unit 231 to discharge the first purified primary treated water discharged from the first aeration tank unit 221 . (3) flows into the second aeration tank unit 231.

This second connection pipe 233 is closed while the primary purification process of the primary treated water 3 denitrified from the first aeration tank 220 is performed, and the primary treatment denitrified from the first aeration tank 220 is performed. It would be desirable to open when the primary purification process of water (3) is finished.

To this end, the second connection pipe 233 is operated by the control unit 270 to open and close the movement of the primary purified primary treated water 3 or the movement of the primary purified primary treated water 3 . It would be desirable to have a means (eg an on/off valve).

The second aeration unit 234 is provided below the second aeration tank unit 231 , and injects air toward the upper side of the second aeration tank unit 231 to enter the second aeration tank unit 231 . Oxygen is supplied to the primary treated water (3).

Specifically, the second air diffuser 234 injects oxygen-containing air toward the lower side of the stirring unit 240, so that the primary purified treated water 3 that is moved to the lower side of the second aeration unit 231 is added. Oxygen is supplied and the oxidation of the primary purified water 3 is accelerated.

And after the second aeration unit 234 is moved downward by the stirring unit 240 and discharged to the lower side of the second aeration unit 231, oxygen is contained toward the lower side of the pair of string-shaped media units 250. By spraying the air, oxygen is supplied to the primary purified treated water 3 flowing into the pair of string media 250 , and the oxidation of the primary purified treated water 3 is promoted.

Furthermore, the second diffuser unit 234 is moved downward by the stirring unit 240 by spraying air toward the lower side of the pair of string-shaped media units 250 , and then from the stirring unit 240 to the second The primary purified treated water 3 discharged to the lower side of the aeration tank unit 231 may be guided to move toward the pair of string media 250 .

The treated water discharge pipe 235 passes through one side wall of the second aeration tank unit 231 , and allows the secondary treated water 4 discharged from the second aeration tank unit 231 to be discharged to the outside. Here, the secondary treated water 4 may be a discharging water body purified from the second aeration tank 230 .

This treated water discharge pipe 235 is closed while the secondary purification process of the first purified treated water 3 from the second aeration tank 230 is performed, and the first purified treated water 3 from the second aeration tank 230 is It would be desirable to be open when the secondary purification process is finished.

To this end, the treated water discharge pipe 235 is provided with an opening/closing means (eg, an opening/closing valve) operated by the control unit 270 to block the movement of the secondary treated water 4 or the movement of the secondary treated water 4 . It would be desirable to be

Referring to FIG. 5 , the stirring unit 240 is installed in the anoxic tank unit 211 , the first aeration tank unit 221 , and the second aeration tank unit 231 . As a configuration for moving the suspended matter and organic matter downward, it consists of a suction member 241 , a duct 242 , and a water flow generating means 244 .

That is, the stirring unit 240 installed in the anoxic tank unit 211 causes the suspended substances and organic materials of the primary treated water 3 to move to the lower side of the anaerobic tank unit 211 , and is installed in the first aeration tank unit 221 . The stirring unit 240 is to move the suspended substances and organic substances of the denitrified primary treated water 3 to the lower side of the first aeration tank unit 221, and the stirring unit installed in the second aeration tank unit 231 ( 240 , it may be understood that the suspended substances and organic substances of the primary purified treated water 3 are moved to the lower side of the second aeration tank unit 231 .

Accordingly, the primary treated water 3 that the stirring unit 240 suctions, moves, and discharges together with suspended substances and organic substances in the following is primary treated water (3), denitrified primary treated water (3) And it will be understood as at least one of the primary purified treated water (3).

The suction member 241 is a component constituting the upper portion of the stirring unit 240 , and has one or more suction ports 241a so that suspended substances and organic materials of the primary treated water 3 are sucked into the inside of the stirring unit 240 . is formed

The primary treated water 3 flowing into the anaerobic tank unit 211, and the first aeration tank unit 221 so that the suction member 241 sucks the suspended substances and organic substances of the primary treated water 3 The denitrified primary treated water 3 and the primary purified treated water 3 flowing into the second aeration tank unit 231 are at the same height as the suction member 241 and are filled in the units 110 , 210 , 310 . it would be preferable

The duct 242 is vertically extended to provide a path for the primary treated water 3 containing suspended substances and organic substances to move downward through the water flow generating means 244 , and includes suspended substances and organic substances. The upper portion connected to the suction member 241 is opened so that the treated primary treated water 3 is introduced into the inside through the suction port 241a, and the suspended and organic materials are moved downward through the water flow generating means 244. After the unit (110, 210, 310) is discharged to the lower side so that the discharge port 243 is formed.

The duct 242 may have a diameter larger than a diameter in which a portion 242a provides a movement path of the primary treated water 3 containing suspended matter and organic matter. This is to operate the water current generating means 244 by embedding a driving device (eg, a motor) for operating the water current generating means 244 in a part of the duct 242a.

In addition, in the duct 242, a vortex generator (not shown) is installed therein, so that the first treated water 3 containing suspended substances and organic substances moved to the outlet 243 by the water flow generating means 244 A spiral vortex is generated. Here, the installation of a vortex generator (not shown) in the duct 242 is to reduce the load on the water current generating means 244 by preventing the load on the water current generating means 244 .

The water flow generating means 244 is installed in the duct 242 and is operated by the control unit 270 so that the primary treated water 3 containing suspended substances and organic substances moves toward the lower outlet 243 . causes

The water flow generating means 244 may generate a water flow so that a spiral vortex is generated in the primary treated water 3 containing suspended substances and organic substances.

Through this, the stirring unit 240 uses the water flow generating means 244 together with a vortex generator (not shown) installed in the duct 242 to form a spiral in the primary treated water 3 containing suspended substances and organic substances. A vortex can be generated.

In addition, the stirring unit 240 has a vortex generator (not shown) installed in the duct 242, so that even when the water flow generating means 244 is operated with low power, the primary treated water 3 containing suspended substances and organic substances 3 is It may be moved toward the outlet 243 .

Referring to FIG. 6 , the string-like media 250 is installed in the anaerobic tank unit 211 , the first aeration tank unit 221 , and the second aeration tank unit 231 , respectively, and is moved downward through the stirring unit 240 . It consists of a string media membrane 251 and a tube 252 as a configuration for purifying suspended substances and organic substances of the primary treated water 3 discharged after adsorption by microorganisms and biological oxidative decomposition.

That is, the string media unit 250 installed in the anoxic tank unit 211 purifies the suspended substances and organic materials of the primary treated water 3 , and the string media unit 250 installed in the first aeration tank unit 221 is denitrification. The suspended matter and organic matter of the purified primary treated water 3 is purified, and the string media 250 installed in the second aeration tank unit 231 removes the suspended matter and organic matter of the primary purified treated water 3 . It would be desirable to be understood as purifying.

Accordingly, the primary treated water (3) to be purified by the string media unit 250 in the following is the primary treated water (3), the denitrified primary treated water (3) and the primary purified water (3) It would be desirable to understand at least one.

The string media membrane 251 is filled with a large amount of microorganisms for adsorbing and oxidatively decomposing suspended substances and organic substances of the primary treated water 3 that are moved to the lower side of the units 110 , 210 , 310 through the outlet 243 . do.

Here, the string media means a microorganism contacting media, and the microorganisms charged in large amounts to adsorb and oxidatively decompose suspended substances and organic substances may consist of bacteria, fungi, protozoa, metazoans, and the like.

On the other hand, it will be preferable that the outer shape of the string-like media 250 is a support frame for embedding the string-like media membrane 251 .

The tube 252 is installed vertically between the support frames and penetrates the support frame vertically to prevent the string-shaped media membrane 251 from being separated from the support frame, and the suspended and organic materials of the primary treated water 3 are string-like. At least one tube through hole (252a) is formed in the side wall so as to be adsorbed to the media membrane (251).

In addition, the tube 252 is provided with a guide plate 252b protruding from the sidewall in a direction perpendicular to the guide plate 252b for guiding the suspended matter and organic matter to move toward the string-like media membrane 251 .

In the case of the string-shaped media part 250 installed in the first aeration tank unit 221, the guide plate 252b is denitrified primary treated water that is moved upward through the oxygen supplied from the first aeration unit 224 ( 3) is to induce the suspended material and organic material to move toward the string media membrane 251 , and in contrast to this, in the case of the string media unit 250 installed in the second aeration tank unit 231 , the second air diffuser unit 234 . ), it would be preferable to understand that the suspended matter and organic matter of the primary purified treated water 3 moved upward through the oxygen supplied from it is guided to move toward the stringy media membrane 251 .

Furthermore, the guide plate 252b is operated by the control unit 270 to open or close the tube through hole 252a, thereby controlling the amount of suspended matter and organic matter flowing into the string media membrane 251 .

On the other hand, it will be preferable that the strap-on media part 250 is provided with a driving device (eg, a motor) so that the guide plate 252b is operated by the controller 270 .

Referring back to FIG. 4 , the circulation unit 260 includes the secondary treated water 4 generated in the second aeration tank unit 231 before the secondary treated water 4 is discharged through the treated water discharge pipe 235 . is circulated to the anaerobic tank 210 .

The circulation unit 260 is preferably provided with a circulation pipe and a circulation pump to circulate the secondary treated water 4 to the anoxic tank 210 .

Specifically, the circulation pipe of the circulation unit 260 includes a pipe having an inlet in the treated water outlet pipe 235 and an outlet in the raw water inlet pipe 213 , and connecting the inlet and the outlet. And the circulation pump of the circulation unit 260 causes the treated water to flow into the inlet of the circulation pipe, and circulates the secondary treated water 4 along the circulation pipe to be discharged to the raw water inlet pipe 213 .

Referring to FIG. 7 , the control unit 270 controls the anaerobic tank 210 , the first aeration tank 220 , the second aeration tank 230 , the stirring part 240 , the string-shaped media part 250 and the circulation part 260 . control However, the configuration of the control unit 270 may be omitted, and the components of the nitrogen processing apparatus 200 may be controlled by the control unit 180 of the advanced ultraviolet processing apparatus 100 .

As a specific example, the control unit 270 controls the anoxic tank 210 so that the denitrified primary treated water 3 is discharged from the anaerobic tank 211 or raw water during the denitrification process of the anoxic tank 210 . The raw water inlet pipe 213 and the first connecting pipe 223 are closed through the opening/closing means provided in the inlet pipe 213 and the second connecting pipe 220 so that the denitrified primary treated water 3 is converted into an anaerobic tank. It is to block the discharge from the unit (211).

In addition, when the control unit 270 controls the first aeration tank 220 , the primary purification treatment water 3 is discharged from the first aeration tank unit 221 , or the primary purification process of the first aeration tank 220 is performed. The first connecting pipe 223 and the second connecting pipe 233 are closed through the opening/closing means provided in the first connecting pipe 223 and the second connecting pipe 233 during the primary purification treatment water (3) is to block discharge to the first aeration tank unit 221 .

In addition, when the control unit 270 controls the second aeration tank 230 , the secondary treated water 4 is discharged from the second aeration tank unit 231 or the secondary purification process of the second aeration tank 230 is performed. The second connection pipe 233 and the treated water discharge pipe 235 are closed through the opening/closing means provided in the second connection pipe 233 and the treated water discharge pipe 235 while the secondary treated water 4 is discharged to the second It is to block the discharge to the aeration tank unit (231).

Furthermore, the control unit 270 controls the first aeration tank 220 and the second aeration tank 230 such that the first aeration tank 220 and the second aeration tank 230 operate not only as an aeration tank but also as an anaerobic tank like the anaerobic tank 110 . control

As described above, for the operation of the aeration tank and the anoxic tank of the first aeration tank 220 and the second aeration tank 230, the low-power stirring and nitrogen treatment system 10 using the string media of the present invention includes the first aeration tank unit 221 and A sensor unit 280 for measuring the nitrate nitrogen concentration and the ammonia nitrogen concentration of the primary treated water 3 flowing into the second aeration tank unit 231 may be further included.

The sensor unit 280 is provided on one side of the second inner wall 222 to measure the nitrate nitrogen concentration and the ammonia nitrogen concentration of the denitrified primary treated water 3 flowing into the first aeration tank unit 221 . and consists of one sensor that integrally measures the nitrate nitrogen concentration and ammonia nitrogen concentration of the denitrified primary treated water 3, or the nitrate nitrogen concentration and ammonia of the denitrified primary treated water 3 It may consist of a plurality of sensors that each measure the sexual nitrogen concentration.

In addition, the sensor unit 280 is provided on one side of the third inner wall 232 to measure the nitrate nitrogen concentration and ammonia nitrogen concentration of the primary purified treated water 3 flowing into the second aeration tank unit 231 . It consists of a single sensor that integrally measures the nitrate nitrogen concentration and ammonia nitrogen concentration of the primary purified treated water 3, or measures the nitrate nitrogen concentration and ammonia nitrogen concentration of the primary purified treated water 3 It may consist of a plurality of sensors each measuring.

The control unit 270 determines that the nitrate nitrogen concentration of the primary treated water 3 flowing into the first aeration tank unit 221 and the second aeration tank unit 231 through the sensor unit 280 is equal to or greater than a preset concentration. In this case, the first aeration tank 220 and the second aeration tank 230 are controlled to operate as an anoxic tank. At this time, the first diffuser 224 and the second diffuser 234 are not operated, so that the oxygen supply to the denitrified primary treated water 3 and the primary purified treated water 3 is stopped, respectively. .

On the other hand, when it is determined that the ammonia nitrogen concentration of the primary treated water 3 flowing into the first aeration tank unit 221 and the second aeration tank unit 231 through the sensor unit 280 is equal to or greater than a preset concentration , the first aeration tank 220 and the second aeration tank 230 are controlled to operate as an aeration tank. At this time, the first diffuser 224 and the second diffuser 234 are operated to supply oxygen to the denitrified primary treated water 3 and the primary purified treated water 3 , respectively.

As such, when the control unit 270 operates the first aeration tank 220 and the second aeration tank 230 as an aeration tank and an anoxic tank, the primary treated water 3 whose nitrogen concentration may vary depending on the winter and summer seasons is facilitated. for processing

Furthermore, in the winter season, the ammonia nitrogen concentration of the primary treated water 3 may be increased, and in the summer season, the nitrate nitrogen concentration of the primary treated water 3 may be increased. Accordingly, the controller 270 may control the first aeration tank 220 and the second aeration tank 230 to operate as an aeration tank in winter and anoxic tank in summer.

And the control unit 270 controls the stirring unit 240 by operating the water flow generating means 244, the primary treated water 3 of the anaerobic tank unit 211, the denitrification 1 of the first aeration tank unit 221 The secondary treated water 3 and the suspended substances and organic substances of the primary purified treated water 3 of the second aeration tank unit 231 are moved to the lower side of the units 110 , 210 , and 310 through the water flow.

In addition, the control unit 270 controls the string media part 250 by operating the guide plate 252b to open or close the tube through hole 252a, so that the string media membrane 251 is the primary treated water (3) Controlling the amount of suspended matter and organic matter inflow while inducing the influx of suspended matter and organic matter.

In addition, the control unit 270 controls the circulation unit 260 through the opening and closing means provided in the second connection pipe 233 and the treated water discharge pipe 235 to the second connection pipe 233 and the treated water discharge pipe 235 . This is closed, and by operating the circulation pump, the secondary treated water 4 flowing in through the inlet of the circulation pipe passing through the treated water discharge pipe 235 is circulated through the circulation pipe to pass through the raw water inlet pipe 213 It is to be discharged through the outlet.

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use each configuration described in the above-described embodiments in a way that is combined with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment or may be included as a new claim by amendment after filing.

1: Enemies,
2: hydrogen peroxide;
3: primary treated water,
3a: circulating treated water,
4: secondary treated water,
10: organic matter and nitrogen treatment system;
100: UV advanced processing device,
110: treatment water tank unit,
111: treatment tank,
111a: mixed water generation point;
112: inner wall,
113: step,
113a: both sides of the step,
114: raw water inlet pipe,
115: treated water discharge pipe,
116: foreign matter discharge pipe,
117: opening and closing means;
120: hydrogen peroxide supply unit;
130: UV irradiation unit,
140: ultraviolet transmittance sensor,
141: a first ultraviolet transmittance sensor,
142: a second ultraviolet transmittance sensor;
150: circulation unit,
151: circulation pipe,
152: circulation pump,
160: hydrogen peroxide sensor;
161: a first hydrogen peroxide sensor;
162: a second hydrogen peroxide sensor;
170: drain,
180: control unit;
200: nitrogen treatment device,
210: anaerobic tank,
211: anaerobic tank unit;
212: a first inner wall,
213: raw water inlet pipe,
220: a first aeration tank;
221: a first aeration tank unit;
222: second inner wall,
223: a first connector,
224: first gynecomastia;
230: a second aeration tank;
231: a second aeration tank unit;
232: a third inner wall,
233: a second connector,
234: second gynecomastia;
235: treated water discharge pipe,
240: agitation unit;
241: a suction member,
241a: suction port,
242: duct,
243: outlet,
244: water flow generating means,
250: string media part,
251: string media membrane,
252: tube,
252a: tube through hole;
252b: guide plate,
260: circulation unit,
270: control unit;
280: sensor unit.

Claims (10)

According to the ultraviolet transmittance and the hydrogen peroxide concentration of the raw water 1 flowing into the treatment water tank 110 from the outside, the hydrogen peroxide supply amount of the hydrogen peroxide supply unit 120 and the ultraviolet irradiation amount of the ultraviolet irradiation unit 130 are adjusted to control the primary treated water (3) is produced, and after discharging the primary treated water (3) or blocking the discharge of the primary treated water (3) according to the ultraviolet transmittance and hydrogen peroxide concentration of the primary treated water (3), the an advanced UV treatment device 100 for circulating the primary treated water 3 to the treated water tank 110 so as to be mixed with the raw water 1; and
The primary treatment so that the organic material of the primary treated water 3 discharged from the ultraviolet advanced treatment device 100 is removed from the anoxic tank 210 , the first aeration tank 220 , and the second aeration tank 230 , respectively Adsorption and biological oxidative decomposition by microorganisms of the stirring unit 240 for moving the organic material of the water 3 downward, and the organic material of the primary treated water 3 moved downward through the stirring unit 240 . Organic matter and nitrogen treatment using a high-ultraviolet light treatment and low-power stirring device, characterized in that it includes; system. The method of claim 1,
The ultraviolet advanced processing device 100,
Based on the ultraviolet transmittance of the raw water (1), the control unit 180 for adjusting the supply amount and the ultraviolet irradiation amount of the hydrogen peroxide (2); system. 3. The method of claim 2,
The control unit 180,
When the ultraviolet transmittance of the primary treated water 3 is less than or equal to a preset transmittance, or when the hydrogen peroxide 2 concentration is greater than or equal to a preset concentration, the primary treated water 3 is discharged to the nitrogen treatment device 200 An organic matter and nitrogen treatment system using advanced ultraviolet treatment and low-power stirring device, characterized in that blocking and circulating the primary treated water (3) to the treatment water tank unit (110). 4. The method of claim 3,
The ultraviolet advanced processing device 100,
A circulation pipe 151 providing a circulation path of the primary treated water 3 and a circulation pipe 151 installed in the circulation pipe 151 are operated by the control unit 180 so that the primary treated water 3 is transferred to the circulation path and a circulation unit 150 having a circulation pump 152 to circulate it to the treatment water tank unit 110 along the way. 3. The method of claim 2,
The control unit 180,
When the ultraviolet transmittance of the primary treated water 3 is less than or equal to a preset transmittance, the primary treated water 3 is prevented from being discharged to the nitrogen treatment device 200, and the ultraviolet rays from the ultraviolet irradiation unit 130 are Organic matter and nitrogen treatment system using advanced UV treatment and low-power stirring device, characterized in that it is additionally generated. The method of claim 1,
The ultraviolet advanced processing device 100,
Ultraviolet advanced treatment, characterized in that it comprises a; Organic matter and nitrogen treatment system using low-power agitator. The method of claim 1,
The nitrogen treatment device 200,
a control unit 270 for controlling the first aeration tank 220 and the second aeration tank 230 to operate as an aeration tank or anoxic tank based on the nitrate nitrogen concentration and the ammonia nitrogen concentration of the primary treated water 3; and
A sensor unit 280 for measuring the nitrate nitrogen concentration and ammonia nitrogen concentration of the primary treated water (3) and transmitting it to the control unit 270; used organic matter and nitrogen treatment system. 8. The method of claim 7,
The control unit 270,
When the nitrate nitrogen concentration of the primary treated water 3 flowing into the first aeration tank 220 or the second aeration tank 230 measured from the sensor unit 280 is equal to or greater than a preset concentration, the first aeration tank (220) or the second aeration tank (230) organic matter and nitrogen treatment system using a low-power agitation device characterized in that the control to be operated as an anoxic tank. 8. The method of claim 7,
The control unit 270,
When the ammonia nitrogen concentration of the primary treated water 3 flowing into the first aeration tank 220 or the second aeration tank 230 measured from the sensor unit 280 is equal to or greater than a preset concentration, the first aeration tank (220) or the second aeration tank (230) organic matter and nitrogen treatment system using a low-power stirring device characterized in that the control to operate as an aeration tank. The method of claim 1,
The stirring unit 240,
a suction member 241 in which one or more suction ports 241a are formed so that the organic material of the primary treated water 3 is sucked;
The upper part is connected to the suction member 241, and the organic material of the primary treated water 3 sucked through the suction port 241a is opened to flow inside, and the introduced primary treated water 3 ) The outlet 243 is formed in the lower portion so that the organic material is discharged, the means for driving the water flow generating means 244 is built-in, a duct 242 in which a part of the diameter is expanded; and
and the water current generating means 244 installed in the duct 242 and generating a water flow so that the organic material of the primary treated water 3 introduced into the duct 242 is moved downward. Organic matter and nitrogen treatment system using advanced UV treatment and low-power stirring device.

Images