KR20110066743A - Recalcitrant harmful material and graywater treatment system and method - Google Patents

Abstract

PURPOSE: A water-treatment apparatus is provided to handle sewage containing non-biodegradable toxic substance and gray water effectively through titanium-UV reactor and advanced oxidation treatment tank. CONSTITUTION: The water-treatment apparatus includes: a titanium -UV reactor(10) which performs the analysis / binding force weakening process of the non-biodegradable toxic substance and decomposition process of the surface active component with TiO2; and a advanced oxidation process tub(20) which performs sterilization, and the removal of the smell / chromaticity induction material and decomposition process of the residue non-biodegradable toxic substance / residue surface active component with ozone and hydrogen peroxide(H2O2). The titanium -UV reactor includes: a radiation device(12) radiating the ultraviolet ray; a nozzle(15) ejecting raw water; a titanium screen(13) which is plated with the titanium; and a water storage tank(14) in which the first processing water is gathered.

Description

Water treatment device for purification of sewage and gray water containing hardly degradable harmful substances and water treatment method using same {Recalcitrant Harmful Material and Graywater Treatment System and Method}

The present invention relates to a water treatment apparatus for the purification of sewage and gray water containing hardly decomposable harmful substances and a water treatment method using the same, and specifically, to fight hardly decomposable harmful substances detected in water resources (water, sewage, groundwater, etc.). The present invention relates to an apparatus for decomposing water by chemical treatment and a water treatment method for purifying sewage and gray water containing hardly decomposable harmful substances using the same.

Conventional water and sewage treatment technologies are mainly biological treatment methods. However, antibiotics, environmental hormones, and endocrine barriers, which are recently being issued, are difficult to decompose, and are not completely removed by conventional biological treatment methods using activated sludge method, membrane, activated carbon, and flocculant. Therefore, the sewage containing such hardly decomposable harmful substances is being leaked to the surrounding environment with little hardly decomposable harmful substances removed. Antibiotic-resistant pathogens are being expressed due to the leakage of hardly degradable harmful substances and disturbances of deformed fish or ecosystems are occurring, and development of technology to prevent this is very urgent.

On the other hand, the existing heavy water treatment is a method of treating all the sewage generated in the home or building, which takes a long treatment time and a lot of installation cost, there was a problem that the treatment process is complicated and not easy to maintain, and solves these problems It is also very urgent.

The present invention was developed to overcome the problems and disadvantages of the prior art as described above, specifically, in the treatment of water, antibiotics and environmental hormones, endocrine-resistant obstacles, etc. contained in the raw water to be treated, such as difficult to decompose harmful substances The aim is to be able to remove them efficiently and completely.

In addition, the present invention is a kind of raw water that is subject to water treatment, surfactants, suspended solids contained in a lot of discharge water (gray water / graywater) except the sewage discharged from the toilet among the discharge water generated from a controlled space such as buildings or apartments And to make it possible to effectively remove particulate matter.

In the present invention, in order to achieve the above object, in the main body in which the internal space is formed, a UV irradiation device for irradiating ultraviolet rays, a nozzle for spraying raw water, a titanium screen plated with titanium, and naturally dripping down The storage tank where the primary treated water is collected is sequentially provided from above, and the TiO ₂ produced by the contact of titanium and ultraviolet irradiation is used to decompose and decompose the hardly decomposable harmful substances contained in the raw water, A titanium-UV reactor in which a decomposition process is performed; It consists of a water tank supplied with the primary treated water treated in the titanium-UV reaction tank, ozone and hydrogen peroxide (H ₂ O ₂ ) is supplied into the tank to react with the primary treated water and remain in the primary treated water. It has a structure including a highly oxidizing tank that decomposes decomposable harmful substances, disinfects and removes odors and color causing substances, and decomposes the surface active substances remaining in the primary treatment water. A water treatment apparatus is provided, and a water treatment method by such a water treatment apparatus is provided.

According to the present invention, it is possible to remove most of the non-degradable harmful substances that are not removed by existing water purification and sewage treatment technologies, thereby minimizing ecosystem disturbances caused by the natural discharge of the non-degradable harmful substances and treating water The effect that can dramatically improve the water quality is exerted.

In the conventional biological water treatment method, if the pollutant load, quantity, water temperature, etc. change rapidly, the microorganisms may be killed and the water treatment may not be performed smoothly, but in the present invention, the water treatment is performed by a physicochemical process. Even if the same pollution load, quantity, etc. change, the rate of injection of raw water from the nozzle, the exposure time, and the speed of progress to the next step can be properly adjusted to prevent the deterioration of water treatment performance and efficiency. Because of the process, the change in water temperature does not affect the water treatment performance and efficiency.

In addition, according to the present invention, it is possible to obtain a sterilization and odor removing effect, it is possible to improve the treatment water quality of the gray water and minimize the treatment time.

In addition, according to the present invention, it is made of a simple structure can significantly reduce the space occupied by the water treatment device, thereby installing the device in a small space, there is an advantage that the water treatment efficiency is excellent. In particular, the water treatment apparatus according to the present invention is easy to maintain, and because it does not use a chemical for water treatment, it is possible to reduce the cost of using the chemical, and excellent economical efficiency.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The present invention has been described with reference to the embodiments shown in the drawings, which are described as one embodiment by which the technical spirit of the present invention and its core configuration and operation are not limited.

FIG. 1 is a schematic configuration diagram of a water treatment apparatus suitable for purifying graywater generated in a place such as a sewage containing hardly decomposable harmful substances and a place such as a building or an apartment as an embodiment of the present invention. 2 is a schematic configuration diagram of a water treatment apparatus according to a modified embodiment of the present invention, and FIG. 3 is a schematic flowchart showing the configuration steps of the treatment method according to the present invention.

The water treatment device 1 according to the present invention is treated with sewage containing antibiotics and environmental hormones, endocrine-resistant obstacles, etc., or sewage discharged from the toilet from sewage generated at a place such as a building or apartment. A device suitable for purifying effluent (graywater / graywater) except for, the configuration includes a titanium-UV reactor (10) and an advanced oxidation process part (20). have.

In the titanium-UV reactor 10, the decomposition and weakening of the hardly decomposable harmful substances by TiO ₂ and the decomposition of the surface active ingredient (S1) are performed. The titanium-UV reactor 10 is irradiated with ultraviolet rays. The UV irradiation apparatus 12 and the titanium screen 13 plated with titanium are provided inside. Specifically, in the present invention, the titanium-UV reactor 10 is composed of a main body 11 having an inner space formed thereon, and an UV irradiating device 12 is disposed above the main body 11, and the UV irradiating device is provided. A nozzle 15 for injecting water to be treated as water, that is, raw water, is disposed below 12, and a titanium screen 13 is disposed below the nozzle 15. That is, as shown in the drawing, the titanium-UV reactor 10 of the present invention has a UV irradiation device 12, a nozzle 15, a titanium screen 13, and a storage tank 14 to be described later from top to bottom. It may be composed of a main body 11 of the tower form that is provided in a layer in sequence. Thus, since the titanium-UV reactor 10 is composed of a main body 11 in the form of a tower, the area required for the installation of the water treatment device is reduced, and thus, it is easy to install in a small area of space, thereby increasing the utility. Will be exercised.

The titanium screen 13 is formed of a member on which titanium is plated on the surface, and may be in the form of a wire made of a wire rod, and a hole in which water passes through the plate on which titanium is surface-plated is formed. May be In the present invention, the titanium screen 13 is made of titanium, and the specific shape is not particularly limited as long as the water can pass therethrough.

Immediately below the titanium screen 13 (specifically, the bottom of the titanium screen 13), as shown in the drawing, the flow path is discharged from the nozzle 15 so that water passing through the titanium screen 13 can flow in and flow down. The flow path forming member 16 to be formed may be provided toward the lower side. The flow path forming member 16 may be made of, for example, a nonwoven fabric made of synthetic resin, and may be disposed to be elongated in the direction of the storage tank 14 to be described later. Water passing through the titanium screen 13 flows down the flow path forming member 16. At this time, impurities such as dust included in the water may be filtered by the flow path forming member 16. Therefore, the flow path forming member 16 has a function of filtering and attaching impurities contained in the water in addition to the flow path forming function through which water flows down.

Under the titanium screen 13, a storage tank 14 corresponding to a space where primary treatment water is collected is formed. Therefore, the raw water introduced into the titanium-UV reactor 10 flows to the storage tank 14 in a natural flow manner. The raw water falls through the titanium screen 13 or flows down through the flow path forming member 16 to be collected in the storage tank 14. If necessary, air may be injected into the storage tank 14.

Since the primary treated water flowing in the condensed oil flow method and passing through the titanium screen 13 is once collected in the storage tank 14 and flows in a subsequent process, the storage tank 14 functions as a flow adjusting tank. For example, in a state in which the micro-filter unit 30 is provided subsequent to the titanium-UV reactor 10 as described below, the fluid exceeding the capacity that can be processed in the micro-filter unit 30 is contained in the micro-filter unit ( 30), the supply of water at once may cause the outflow of treated water to the outside. In the present invention, since the first treated water passing through the titanium screen 13 is collected in the storage tank 14 and flows in a subsequent process, the storage tank 14 includes a pump to control the pump operation. Through this, it is possible to adjust the amount of the primary treated water supplied to the subsequent micro filter device 30 artificially as necessary, so that the amount of raw water is generated, even if the amount of water flowing into the titanium-UV reactor 10 increases rapidly. Once the primary treated water is stored in the storage tank, it can be sent to a subsequent process at a constant flow rate, so as to prevent problems such as an outflow accident caused by excessive fluid inflow into the micro filter device 30 as described above. do.

In the titanium-UV reactor 10 as described above, the decomposition and weakening of the hardly decomposable harmful substances by UV irradiation and passing through the titanium screen 13 of the raw water to be treated are carried out and the decomposition process of the surface active ingredient (S1) is performed. Looking at the water treatment process in the titanium-UV reactor 10 in detail, first, the raw water is sprayed through the nozzle 15 in the state that the UV irradiation device 12 is irradiated with ultraviolet light toward the titanium screen 13, titanium As it flows into the screen 13 and falls naturally, it collects in the storage tank 14 below. At this time, since the titanium screen 13 is plated with titanium and UV is irradiated, TiO ₂ is generated by UV irradiation on titanium, and raw water reacts with TiO ₂ , so that the bonding strength is weak among the hardly decomposable harmful substances in the raw water. Decomposition of the components occurs, and a weakening of the binding force occurs for the components that do not occur. In the case of spraying gray water as raw water, generally, the surface active ingredient is included in raw water, and the surface active component also decomposes by reacting with TiO ₂ .

 The sterilization and residual hardly decomposable hazardous substances in the advanced oxidation treatment tank 20 following the water treatment step in the titanium-UV reaction tank 10, that is, the decomposition and weakening of the hardly decomposable harmful substances and the decomposition of the surfactant component. Removal and odor-causing substances are carried out.

In the present invention, the advanced oxidation treatment tank 20 is composed of a water tank in which an inlet for inflow of the primary treatment water treated by the titanium-UV reaction tank 10 is formed. The ozone generated by the ozone generator 21 is formed. Hydrogen peroxide (H ₂ O ₂ ) supplied from a separate feeder (not shown) is supplied into the advanced oxidation treatment tank 20. The member No. 22 is an ozone detector 22 capable of checking the supply of ozone, and the member No. 23 is used to remove residual ozone contained in the treated water in which the process by the advanced oxidation treatment tank 20 is performed. Residual ozone remover 23.

As shown in the figure, the primary treatment water treated by the decomposition and weakening of the hardly decomposable harmful substances in the titanium-UV reaction tank 10 and the surface active ingredient decomposition process is inside the tank of the advanced oxidation treatment tank 20. Is supplied. In the figure, the movement of raw water and the movement of primary treatment water are briefly represented by arrows for convenience.

Since ozone and hydrogen peroxide are supplied to the advanced oxidation treatment tank 20, the hardly decomposable harmful substances remaining in the primary treated water supplied through the titanium-UV reaction tank 10 are decomposed by ozone and hydrogen peroxide, and sterilized / disinfected. The action and removal of odor and color causing substances also occur. In addition, further decomposition of the surface active ingredient remaining in the raw water supplied through the titanium-UV reactor 10 occurs in the advanced oxidation treatment tank 20.

Meanwhile, in the present invention, as shown in FIG. 2, the micro filter device 30 may be further provided. Specifically, the micro filter device 30 is a device for removing suspended solids and particulate matter, the micro filter device 30, as illustrated in Figure 2, has excellent filtering effect, easy to purchase and reduce installation cost Preferably, the membrane 31 is composed of a microfilter device of the membrane type provided therein.

By arranging the micro filter device 30 as described above between the titanium-UV reactor 10 and the advanced oxidation treatment tank 20, the primary treatment water treated in the titanium-UV reactor 10 is subjected to the advanced oxidation treatment tank 20. Before being transferred to, the suspended solids and particulate matter contained in the primary treated water are removed through the micro filter device 30. That is, the decomposition and weakening of the hardly decomposable harmful substances in the titanium-UV reaction tank 10, the surface active ingredient decomposition process (S1), the sterilization in the advanced oxidation treatment tank 20, the removal of residual hardly decomposable harmful substances and The process of removing suspended solids and particulate matter (SA) by the micro filter device 30 is further included between the process of removing the odor and chromaticity causing substances (S2).

The micro filter device 30 is preferably installed in close contact with or integrally next to the tower-shaped main body 11 of the titanium-UV reactor 10. Through such close or integrated installation, the water treatment device is The area occupied can be significantly reduced.

As described above, in the present invention, the decomposition of the hardly decomposable harmful substances by UV irradiation and the passage of the titanium screen 13 and the weakening of the binding force, and the decomposition of the surface active ingredient are made, and if necessary, the removal of suspended matter and particulate matter is made. By the action of warm zone and hydrogen peroxide, decomposition and sterilization of hardly decomposable harmful substances and removal of odor-causing substances are performed. Therefore, according to the present invention, it is possible to effectively remove the harmful substances such as antibiotics, environmental hormones, and endocrine-resistant obstacles contained in sewage and gray water, which could not be removed by conventional biological treatment of water and sewage treatment. Can be removed most of the time.

In addition, in the present invention, the time required for the treatment water to stay in each step is shortened compared to the biological treatment step, so that the time required for the overall sewage treatment is shortened.

In particular, in the prior art by biological treatment, if the pollutant load, quantity, water temperature, etc. changes rapidly, the microorganisms may be killed and the water treatment may not be performed smoothly, but in the present invention, the water treatment is performed by a physicochemical process. Therefore, even if the pollutant load, quantity, etc. are changed as described above, it is possible to prevent the deterioration of water treatment performance and efficiency by appropriately adjusting the speed at which the raw water is injected from the nozzle, the exposure time, and the progression speed to subsequent steps. As a chemical process, water treatment performance and efficiency are hardly affected by changes in water temperature. Therefore, according to the present invention, it is possible to efficiently perform the water treatment so that a certain degree of target water quality can be achieved without large ups and downs despite the change of various external factors.

Furthermore, the water treatment apparatus according to the present invention can automate and network all the processes very easily, and according to such automation and networking, there is no need for the personnel required for the management of the water treatment apparatus to reside, and the water treatment apparatus with a minimum number of persons. Because of this, the cost required for the operation, management and maintenance of the water treatment device can be greatly reduced.

1 is a schematic configuration diagram of a water treatment apparatus suitable for purifying graywater generated in a place such as a sewage containing hardly decomposable hazardous substances and a place such as a building or an apartment as an embodiment of the present invention.

2 is a schematic configuration diagram of a water treatment device according to a modified embodiment of the present invention.

3 is a schematic flowchart showing the construction steps of a processing method according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: titanium-UV reactor

20: advanced oxidation treatment tank

30: micro filter unit

Claims (5)

A water treatment device for purifying raw water consisting of sewage or gray water containing hardly decomposable harmful substances, In the main body 11 in which the internal space is formed, the UV irradiation apparatus 12 which irradiates an ultraviolet-ray, the nozzle 15 which sprays raw water, the titanium screen 13 in which titanium is plated, and flows down naturally The storage tank 14 for collecting the first treated water collected is sequentially provided from above, and the TiO ₂ generated by the contact of titanium and the ultraviolet irradiation is used to decompose and decompose the hardly decomposable harmful substances contained in the raw water. A titanium-UV reaction tank 10 in which a decomposition process of the surface active component is performed; It consists of a water tank supplied with the primary treated water treated in the titanium-UV reaction tank 10, ozone and hydrogen peroxide (H ₂ O ₂ ) is supplied into the tank to react with the primary treated water and remain in the primary treated water. It contains a highly oxidizing tank (20) that is a decomposition of the difficult to decompose harmful substances that are being carried out, the sterilization action, the removal of odor and color causing substances and the decomposition of the surface active ingredients remaining in the primary treatment water. A water treatment device having a structure. The method of claim 1, The micro filter device 30 is further provided between the titanium-UV reactor 10 and the advanced oxidation treatment tank 20, so that the microfilter device 30 is contained in the primary treated water treated in the titanium-UV reactor 10. Water treatment device, characterized in that the micro filter device 30 to remove suspended matter and particulate matter. The method according to claim 1 or 2, Directly below the titanium screen 13, there is provided a flow path forming member 16 for forming a flow path so that water sprayed from the nozzle 15 and passed through the titanium screen 13 flows down. Water treatment device characterized in that. A water treatment method for purifying raw water consisting of sewage or gray water containing hardly decomposable harmful substances, In the main body 11 in which the internal space is formed, the UV irradiation apparatus 12 which irradiates an ultraviolet-ray, the nozzle 15 which sprays raw water, the titanium screen 13 in which titanium is plated, and flows down naturally In the titanium-UV reaction tank 10 in which the storage tank 14 in which the first treated water collected is collected is sequentially provided from above, it is difficult to decompose in the raw water by TiO ₂ generated by the contact of titanium and ultraviolet irradiation. Decomposing the substance, weakening the binding force of the hardly decomposable substance, and decomposing the surfactant; The ozone and hydrogen peroxide (H ₂ O ₂ ) are introduced into the advanced oxidation treatment tank 20 in a state where the first treatment water treated in the titanium-UV reaction tank 10 is supplied to the advanced oxidation treatment tank 20 including the water tank. It reacts with the first treatment water and decomposes the hardly decomposable harmful substances remaining in the first treatment water, removes the sterilizing effect, the odor and the color causing substances, and the surface active substances remaining in the first treatment water. Water treatment method characterized in that the process of decomposing the component proceeds sequentially. 5. The method of claim 4, Decomposition and weakening of the hardly decomposable harmful substances by the titanium-UV reaction tank (10), and the decomposition of the surface active ingredients, and further decomposition and sterilization of the hardly decomposable harmful substances and the surfactant by the high oxidation treatment tank (20). And between odor and color causing substances removal process, Suspended matter contained in the primary treated water treated by the titanium-UV reactor 10 by the micro filter device 30 provided between the titanium-UV reactor 10 and the advanced oxidation treatment tank 20. Water treatment method further comprises the step of removing particulate matter.

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