KR102142465B1 - Water treatment system by injection of ozone - Google Patents

Abstract

The present invention relates to a water treatment apparatus by ozone injection to maximize a contaminant purification efficiency. According to one embodiment of the present invention, the water treatment apparatus by ozone injection comprises: a pretreatment unit including a first water tank, which is a water tank for temporarily storing raw water when the raw water to be treated flows in, and a filter means separating precipitates included in the raw water; a contaminant treatment unit performing a contaminant removing treatment for the raw water which is transferred by transferring the precipitate-free raw water to a second water tank installed as a water treatment tank by a transfer means and injecting ozone generated from an ozone generator into the second water tank; and a post-treatment unit including a third water tank which is a water tank to receive the raw water treated in the contaminant treatment unit and including a discharged ozone decomposer disposed on the upper end part of the third tank, thereby decomposing the remaining ozone to discharge the raw water to the outside.

Description

WATER TREATMENT SYSTEM BY INJECTION OF OZONE}

The present invention relates to a water treatment device by injection injection of ozone, specifically, by injecting ozone into the raw water to be treated, so that the raw water to be treated is purified by oxidative decomposition of ozone, water treatment by injection injection of ozone It is related to the device.

Recently, water quality standards have been gradually strengthened as a measure to improve water quality in public waters that are rapidly becoming polluted. Therefore, research and development to increase the efficiency of water treatment devices that treat wastewater and domestic wastewater discharged from industrial processes has been actively conducted. have.

As part of such research and development, a technology for purifying, sterilizing, or discoloring contaminated water by reacting contaminated water flowing into a water treatment device with ozone by strong oxidation and decomposition of ozone is registered in Korea Patent No. 10-0992827 (membrane separation) Wastewater treatment system using).

Specifically, the above-mentioned prior patent discloses a technique for treating sewage and wastewater through a BNR (Biological Nutrient Removal) process, a membrane separation process, and an ozone contact process, but in the above-mentioned prior patent, ozone is simply contacted by a diffuser. According to the method, the contact time and contact efficiency between ozone and the polluted water to be treated were low, and this resulted in an increase in the size of the ozone treatment facility, resulting in an increase in the cost of treating the polluted water and waste of resources. .

Accordingly, the present invention is to provide a water treatment apparatus capable of purifying harmful pollutants contained in raw water by spraying and injecting ozone generated from the ozone generator into the raw water to be treated with water through a nozzle provided on a rotary shaft. There is a purpose.

In addition, a second object of the present invention is to provide a water treatment device that promotes the reaction between ozone and raw water to efficiently remove contaminants and reduce the amount of ozone generated.

In order to achieve the above object, the water treatment apparatus by injection injection of ozone according to an embodiment of the present invention is provided with a first water tank which is a water tank for temporarily storing raw water as the raw water to be treated is introduced, Pre-treatment unit is provided with a filtering means for separating the precipitate contained in the raw water; The raw water from which the sediment is separated is transferred to a second water tank provided as a processing water tank by a transfer means, and ozone generated by the ozone generator is injected into the second water tank to perform pollutant removal treatment for the transported raw water. Material processing unit; And a third water tank, which is a water tank that receives raw water treated by the pollutant treatment unit, wherein an upper ozone breaker is provided at the upper end of the third water tank to destroy residual ozone and discharge the raw water to the outside. It is characterized by including.

It is preferable that a plurality of nozzles are provided on the rotary rotary shaft described above, and that ozone injected from the nozzle toward the raw water of the second water tank is injected while forming at least one spray surface.

The above-described contaminant processing unit, before injecting ozone into the second water tank, it is preferable to focus the ultrasonic waves having a frequency of 20 Hz to 250 kHz on the transferred raw water, so that the particle crushing of the contaminants contained in the raw water is performed.

The second water tank of the above-described contaminant processing unit is configured to further include a vibration generator in one region around the periphery, so that when ozone is injected into the raw water, vibration generated by the vibration generator is transmitted to the raw water accommodated in the second water tank. Do.

It is preferable that the above-described second water tank further includes a blade connected to one region of the rotary axis of rotation, and circulates the raw water accommodated in the second water tank by the blade to promote the reaction between the raw water and ozone.

The above-described post-processing unit further includes; a sensor module for measuring the water pollution level of the raw water accommodated in the third water tank, and when the water pollution level of the raw water measured by the sensor module exceeds a preset emission limit, the raw water is contaminated. It is preferable that the material is processed to be transported to a contaminant removal process.

It is preferable that the precipitate separated by the filtration means in the above-described pre-treatment part is dehydrated so as to be less than 10% of moisture content to be produced as a sludge cake.

According to an embodiment of the present invention, by spraying and injecting ozone generated from the ozone generator into the raw water to be subjected to water treatment through a nozzle provided on the rotary axis, the problem of a conventional water treatment apparatus using ozone is solved and included in the raw water It is effective to provide a water treatment device capable of reducing harmful pollutants such as nitrogen oxides and sulfur oxides.

Particularly, in the present invention, before the ozone is injected into the raw water, after the particle pulverization of the harmful contaminants contained in the raw water is performed using an ultrasonic concentrator, the raw water to be subjected to water treatment by a vibration generator at the time of ozone injection It has the effect of promoting the reaction of ozone to further maximize the efficiency of pollutant purification.

Furthermore, the above-described ozone has an effect of easily controlling and automating the injection amount of ozone, as it is possible to easily obtain the required amount when the air and electric power are supplied and to change the applied voltage and frequency of the ozone generator.

In addition, according to an embodiment of the present invention, by measuring the water pollution level of the raw water treated with a contaminant using a sensor module provided in the post-processing unit, and based on the measurement result to control whether or not the raw water is discharged to the outside of the standard There is an effect that can prevent the problem caused by secondary environmental pollution due to the discharge of raw water to the outside.

1 is a schematic configuration diagram of a water treatment apparatus by injection injection of ozone according to an embodiment of the present invention.
Figure 2 is an example of the ozone inlet of the ozone generator connected to the rotary axis of rotation according to an embodiment of the present invention.
3 is an example of crushing particles of contaminants contained in raw water using ultrasonic waves according to an embodiment of the present invention.
4 is an example of a vibration generator installed in a water tank according to an embodiment of the present invention.
5 is an example of a process for processing raw water contained in a post-processing unit according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, a number of specific details are disclosed to aid the overall understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that this aspect(s) can be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of the one or more aspects. However, these aspects are exemplary and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents.

As used herein, "an embodiment", "yes", "good", "example", etc., may not be construed as any aspect or design described being better or more advantageous than another aspect or designs. .

Also, the terms “comprises” and/or “comprising” mean that the feature and/or component is present, but excludes the presence or addition of one or more other features, elements, and/or groups thereof. It should be understood as not.

Further, terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. The term and/or includes a combination of a plurality of related described items or any one of a plurality of related described items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those skilled in the art to which the present invention pertains. It has the same meaning. Terms such as those defined in a dictionary generally used should be interpreted as having meanings consistent with meanings in the context of related technologies, and are ideal or excessively formal meanings unless explicitly defined in the embodiments of the present invention. Is not interpreted as

The present invention relates to a water treatment device by injection injection of ozone, by injecting the ozone generated from the ozone generator into the raw water to be subjected to water treatment through a nozzle provided on the rotary shaft, to remove harmful pollutants contained in the raw water The first object is to provide a water treatment device capable of purifying the reaction between ozone and raw water to effectively remove contaminants and to reduce the amount of ozone generated. There is this.

Hereinafter, the present invention having the above-described object will be described in more detail with reference to the accompanying drawings.

Referring first to FIG. 1, FIG. 1 shows a schematic configuration diagram of a water treatment device by injection injection of ozone according to an embodiment of the present invention.

As shown in FIG. 1, the water treatment device by injection injection of ozone may largely include a pre-treatment unit 10, a pollutant treatment unit 20, and a post-treatment unit 30.

Specifically, the above-described pre-treatment unit 10 may be provided with a first water tank 11 which is a water tank for temporarily storing raw water as the raw water to be treated is retained, and filtering means for separating sediment contained in the raw water 12 may be provided.

As the above-mentioned filtration means 12, filtration means 12 including at least one of physical filtration means and chemical filtration means is used, and for example, one or more filtration filters may be used.

At this time, the filtration means 12 included in the above-described pre-treatment unit 10, in the treatment of contaminated raw water using ozone in the pollutant processing unit 20 to be described later, as well as removal of sediment, suspended matter concentration Has the effect of contributing to blocking the BOD rise of high raw water so that an economical water treatment process can be performed.

On the other hand, the sediment separated by the above-described filtration means 12 in the above-described pre-treatment unit 10 is dehydrated by the dehydrator 13 so that the moisture content is less than 10%, and can be generated and discharged as a sludge cake. .

At this time, the sludge cake described above can be reused as a substitute for solid fuel since the calorific value is improved due to low water content, and by measuring the heavy metal content of the sludge cake, when the heavy metal content is measured below the reference value, it can be effectively reused as an organic fertilizer. Can be.

Next, the above-described contaminant processing unit 20 allows the raw water from which the sediment is separated to be transferred to the second water tank 21 provided as a processing water tank by a transfer means, and ozone generated by the ozone generator 22 is removed. 2 It is possible to perform the pollutant removal treatment for the raw water that is injected into the water tank 21 and transferred.

The above-described ozone generator 22 generates ozone by irradiating ultraviolet rays with oxygen molecules or electrolyzing water to generate ozone or by inserting an insulator between the high voltage electrode and the ground electrode to add AC high voltage to generate ozone. It can be understood that the ozone generator 22 can be used.

The ozone produced in this way has a strong oxidizing power, so it can oxidize organic and inorganic compounds. In particular, it has the characteristic of rapidly decomposing aromatic nuclei at room temperature as well as olefins of non-degradable organic compounds.

On the other hand, although the above-described water treatment apparatus using ozone has been disclosed several times in the past, conventional water treatment apparatuses have a problem of low contact efficiency between ozone and raw water to be treated by using a simple contact method of ozone in a diffuser. .

Accordingly, in the present invention, the ozone inlet formed to inject ozone into the ozone generator 22 in order to solve the above-described problem is provided to be provided as a nozzle on a rotary rotary shaft installed in the center of the second water tank 21 described above. There is this.

That is, accordingly, the ozone inlet of the ozone generator 22 is rotationally driven along the rotational direction of the rotary axis of rotation, and ozone generated from the ozone generator 22 is rotated and injected into the raw water transferred to the second water tank 21. By doing so, it is possible to expect a synergistic effect of the contact efficiency between ozone and the raw water to be treated without costly consumption.

On the other hand, as a more preferred embodiment of the present invention, the rotary rotary shaft described above is provided with a plurality of nozzles for injection and injection of ozone, and is injected toward the raw water of the second water tank 21 from the plurality of nozzles described above. It is desirable to allow ozone to be injected, forming at least one jetting surface.

Referring to FIG. 2 for a more specific description, FIG. 2 shows an embodiment in which an ozone inlet is formed as a nozzle on a rotary axis of rotation according to an embodiment of the present invention.

As shown in FIG. 2, when a plurality of nozzles 220 are continuously installed in one region of the rotary rotation shaft 210 that is rotationally driven, ozone 2201 is injected from the nozzle 220, ozone 2201 ), it can be seen that while forming a single injection surface can be injected into the raw water side.

That is, in the present invention, by the above-described configuration, it is possible to increase the contact efficiency of the raw water and ozone 2201, and accordingly, it is possible to solve the problem that the contact efficiency of the conventional ozone 2201 was low.

Returning to FIG. 1 again, before the ozone is injected into the second water tank 21, an ultrasonic concentrator 24 that focuses ultrasonic waves having a preset frequency on the transferred raw water is further provided in the above-described contaminant processing unit 20. Can be included.

Continuing the description with reference to FIG. 3, as shown in FIG. 3 1000, in the present invention, the frequencies of 20 Hz to 250 kHz generated using the above-described ultrasonic concentrator are focused on the raw water transferred to the second tank. I can do it.

At this time, the focusing of the ultrasound having the above-described frequency range, the destruction of bacteria and atomic bonding between polymers by using the shock and heat generated when the Cavity collapses due to the change of + and-pressure generated when the ultrasound is propagated By inducing a break, it can be used to decompose and remove contaminants.

Referring to 1100 and 1200 of FIG. 3, at 1100, a contaminant particle size before ultrasonic focusing, and at 1200, a conceptual diagram for contaminant particle size after ultrasonic focusing is illustrated.

That is, contaminants including nitrogen oxides (NOx) and sulfur oxides (SOx) by ultrasonic focusing can be finely crushed between atoms, or removed by shock waves and heat of cavity, thereby pursuing highly purified water purification. There is an effect that can provide a water treatment device to plan.

1, the second water tank 21 of the above-described contaminant processing unit 20 may further include a vibration generator 23 installed in one region of the circumference.

Referring to FIG. 4 for a more detailed description, FIG. 4 shows an installation example of the vibration generator 23 according to an embodiment of the present invention.

As shown in Figure 4, the above-described vibration generator 23 is provided in one region around the second water tank, when the ozone generated by the ozone generator is injected into the raw water 1, the vibration generator 23 ) Performs the function of transmitting vibrations to the raw water 1 accommodated in the second tank.

That is, in the present invention, the raw water (1) transferred to the second water tank by the above-described vibration generator is continuously flowed, thereby increasing the contact reaction between ozone and the raw water (1) for advanced water treatment by ozone reaction. You can do it.

Meanwhile, in another embodiment of the present invention, the second water tank further includes a blade (not shown) connected to one region of the rotary axis of rotation to circulate the raw water 1 accommodated in the second water tank by the above-described blade. It is also possible to promote the reaction of the raw water 1 and ozone, and the present invention is not limited thereto.

That is, according to the present invention, when looking at the contaminant treatment unit, the contact efficiency of the ozone and the raw water 1 to be treated is increased by one or more embodiments, so that it is possible to perform highly purified water treatment.

Returning to FIG. 1 again, the above-described post-treatment unit 30 is provided with a third water tank 31, which is a water tank that receives raw water treated by the above-described pollutant processing unit, and is provided at the upper end of the above-described third water tank 31. By providing the ozone destroyer 32, it functions to destroy residual ozone and discharge raw water to the outside.

At this time, the above-described baozone, it can be understood that the ozone generated in the ozone generator is a surplus gas that is not dissolved because it does not react with the raw water in water.

On the other hand, the aforementioned ozone has a high concentration of thousands of ppm or more of ozone, and when released to the outside, there is a problem that causes another environmental pollution by ozone, and at least one of a thermal catalyst method and a thermal destruction method It is preferable that a treatment process is performed so as to be destroyed using the ozone destructor 32 using a method comprising a.

On the other hand, as a more preferred embodiment of the above-described post-processing unit 30, the above-described post-processing unit 30 may further include a sensor module 33 for measuring the water pollution level of raw water accommodated in the third water tank 31. have.

Specifically, the above-described sensor module 33 performs a function of detecting whether or not the degree of water pollution of raw water transferred to the third water tank 31 exceeds a preset discharge limit, and the detection of the above-described sensor module 33 According to the result, a control module (not shown) connected to the water treatment device determines whether the raw water contained in the third water tank 31 is externally discharged.

Referring to FIG. 5 for a more detailed description of this, in FIG. 5, an example of a processing process of raw water contained in a post-processing unit is illustrated.

As shown in FIG. 5, as a result of measuring the water pollution level of the sensor module with respect to the raw water transferred from the second water tank 21, when the measured water pollution level is detected below a preset emission limit, the product is removed as shown in (A). 3 The raw water transferred to the water tank 31 may be discharged to the outside after the ozone destruction treatment is performed.

On the other hand, as a result of measuring the water pollution level of the sensor module for the raw water transferred from the second water tank 21, when it is detected that the measured water pollution level exceeds a preset discharge allowance, the third water tank 31 as shown in (B) ), it is not discharged to the outside, it is transported to the second water tank 21 so that the removal of contaminants can be performed again.

At this time, more preferably, in the pollutant removal process that is carried back to the second water tank 21 and re-performed, the remaining ozone is collected in the third water tank 31, and the pollutant removal processing by the ozone is performed. By doing so, it is possible to economically perform a treatment process for removing contaminants.

That is, in the present invention, by measuring the water pollution level of the raw water treated with a pollutant using a sensor module provided in the post-processing unit, and controlling whether the raw water is discharged externally based on the measurement result, discharged raw water that is less than the standard is discharged to the outside. It has the effect of preventing problems caused by secondary environmental pollution.

On the other hand, in the present invention, the transfer of the first to third water tanks 31 will be understood as being generally implemented by a pump provided in a water treatment device, and the present invention is not limited thereto.

Overall, according to an embodiment of the present invention, according to an embodiment of the present invention, ozone generated from an ozone generator is injected and injected into raw water as a water treatment target through a nozzle provided on a rotary rotating shaft, thereby using conventional ozone. There is an effect that can solve the problem of the water treatment device, and provide a water treatment device capable of reducing harmful pollutants such as nitrogen oxides and sulfur oxides contained in raw water.

Particularly, in the present invention, before the ozone is injected into the raw water, after the particle pulverization of the harmful contaminants contained in the raw water is performed using an ultrasonic concentrator, the raw water to be subjected to water treatment by a vibration generator at the time of ozone injection It has the effect of promoting the reaction of ozone to further maximize the efficiency of pollutant purification.

Furthermore, the above-described ozone has an effect of easily controlling and automating the injection amount of ozone, as it is possible to easily obtain the required amount when the air and electric power are supplied and to change the applied voltage and frequency of the ozone generator.

In addition, according to an embodiment of the present invention, by measuring the water pollution level of the raw water treated with a contaminant using a sensor module provided in the post-processing unit, and based on the measurement result to control whether or not the raw water is discharged to the outside of the standard There is an effect that can prevent the problem caused by secondary environmental pollution due to the discharge of raw water to the outside.

The device described above may be implemented with hardware components, software components, and/or combinations of hardware components and software components. For example, the devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor (micro signal processor), a microcomputer, a field programmable gate array (FPGA), It may be implemented using one or more general purpose computers or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may run an operating system (OS) and one or more software applications running on the operating system. In addition, the processing device may access, store, manipulate, process, and generate data in response to the execution of the software. For convenience of understanding, a processing device may be described as one being used, but a person having ordinary skill in the art, the processing device may include a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that may include. For example, the processing device may include a plurality of processors or a processor and a controller. In addition, other processing configurations, such as parallel processors, are possible.

The software may include a computer program, code, instruction, or a combination of one or more of these, and configures the processing device to operate as desired, or processes independently or collectively You can command the device. Software and/or data may be interpreted by a processing device or to provide instructions or data to a processing device, of any type of machine, component, physical device, virtual equipment, computer storage medium or device. Can be embodied permanently or temporarily. The software may be distributed on networked computing devices and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and may be recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the medium may be specially designed and configured for an embodiment or may be known and available to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic media such as floptical disks. -Hardware devices specifically configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language code that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described by a limited embodiment and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques are performed in a different order than the described method, and/or the components of the described system, structure, device, circuit, etc. are combined or combined in a different form from the described method, or other components Alternatively, even if replaced or substituted by equivalents, appropriate results can be achieved. Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (7)

In the water treatment apparatus by injection injection of ozone,
As the raw water to be treated is introduced, a first water tank, which is a water tank for temporarily storing the raw water, is provided, and a pre-treatment unit equipped with filtration means for separating sediment contained in the raw water;
The raw water from which the sediment is separated is transferred to a second tank provided as a treatment tank by a transfer means, and ozone generated by an ozone generator is injected into the second tank to remove pollutants from the transferred raw water. Contaminant processing unit; And
A third water tank, which is a water tank receiving raw water treated by the pollutant processing unit, is provided, and a post treatment unit is disposed at an upper end of the third water tank to destroy residual ozone and discharge the raw water to the outside; Including,
The ozone generator,
The ozone inlet formed to inject the ozone is provided as a nozzle in a rotary rotation axis installed at the center of the second water tank, so that the ozone is supplied to the raw water transferred to the second water tank by rotationally driving along the rotational direction of the rotary rotation axis. The ozone generated in the generator is injected,
On the rotary axis of rotation, a plurality of nozzles are continuously installed, and ozone injected from the nozzle toward the raw water of the second water tank is injected while forming at least one spray surface,
The pollutant processing unit,
Before the ozone is injected into the second water tank, by focusing ultrasound having a frequency of 20 Hz to 250 kHz to the transferred raw water, particle pulverization of contaminants contained in the raw water is performed,
The post-processing unit,
Further comprising, a sensor module for measuring the water pollution level of the raw water accommodated in the third tank, when the water pollution level of the raw water measured by the sensor module exceeds a predetermined discharge limit, the raw water to the contaminants Contaminant removal processing is performed again by returning to the processing unit.
In the re-contamination pollutant removal process, the remaining ozone is collected in the third tank so that the pollutant removal processing by the ozone is performed.
The precipitate separated by the filtering means in the pre-treatment unit,
Dehydrated to a water content of less than 10% to produce a sludge cake.However, when measuring the heavy metal content of the sludge cake, when the heavy metal content is measured below a reference value, it is used for injection injection of ozone, characterized in that it is reused as an organic fertilizer. Water treatment device.
delete delete According to claim 1,
The second tank of the contaminant processing unit,
In the injection injection of ozone, characterized in that the vibration generator is further provided in one region of the periphery, and when the ozone is injected into the raw water, the vibration generated by the vibration generator is transmitted to the raw water accommodated in the second water tank. Water treatment device.
According to claim 4,
The second tank,
Further comprising; a blade connected to a region of the rotary axis of rotation,
A water treatment device by injecting and spraying ozone, wherein the raw water contained in the second water tank is circulated by the blade to promote the reaction between the raw water and the ozone.
delete delete

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