KR100743226B1 - Water treatment system - Google Patents

Abstract

A water processing system is provided to reduce the cost for preparing water processing apparatuses and processes according to kinds and characteristics of contaminated water, by using a high-field oxidation-reduction adjusting unit as a preprocessing apparatus. A contaminant material is removed from effluent within a reactor tank(200). A portion of the effluent is inputted to a high-field oxidation-reduction adjusting unit(500). High-voltage pulses are applied to the effluent to adjust the effluent to one of an oxidation environment or a reduction environment selectively within the high-field oxidation-reduction adjusting unit. The effluent after the high-field oxidation-reduction adjusting reaction is again transferred to the reactor tank through at least one transfer line(950).

Description

Water treatment system {WATER TREATMENT SYSTEM}

1 is an embodiment of the water treatment system according to the present invention, a portion of the treated water from the reaction tank is introduced back into the high-elevation redox apparatus to selectively adjust to the oxidizing environment or reducing environment, and then back through the conveying line The process chart for the water treatment system returned to the furnace is shown.

Figure 2 is an embodiment of the water treatment system according to the present invention, consisting of the reaction tank of the anaerobic tank and the contact aeration tank, showing a process diagram for the water treatment system is configured by further adding a high- chapter redox adjustment device as a pretreatment device, respectively. .

Figure 3 is an embodiment of the water treatment system according to the present invention, consisting of a reaction tank of the anaerobic tank and the contact aeration tank, each of the high-extension redox adjusting device is added to the pre-treatment device, each of the separate conveyance using only one pump A process diagram for a water treatment system composed of lines is shown.

4 is an embodiment of the water treatment system according to the present invention, the reaction tank is composed of an anaerobic tank and a contact aeration tank, and after adjusting a part of the treated water from the anaerobic tank to the reducing environment through the first high-extension redox control device. The process chart for the water treatment system consisting of returning to the anaerobic tank, and part of the discharged water discharged from the solid-liquid separation tank is sequentially returned to the contact aeration tank after passing through the microbubble generator, the high-elasticity redox adjusting device, the air dissolving device. It is shown.

Figure 5 is an embodiment of the water treatment system according to the present invention, the reaction tank is composed of only the contact aeration tank, the inlet of some of the treated water treated in the contact aeration tank microbubble generating device, high-voltage redox adjusting device, air dissolving device It shows a process diagram for a water treatment system consisting of sequentially passing back through the air dissolved water line to the contact aeration tank.

Figure 6 is a water treatment consisting of passing a part of the effluent through the effluent passage filled with the filter medium again through the microbubble generating device, high-elevation redox adjusting device, air dissolving device in sequence and then back to the effluent filled with the filter medium It's about the system.

Figure 7 shows an embodiment of a high-voltage redox adjusting device which is one of the devices constituting the water treatment system according to the present invention, Figure 7a is a perspective view, Figure 7b is a sectional view.

<Code Description of Main Parts of Drawing>

100: line filter 200: reactor

210: anaerobic tank 220: contact aeration tank

300: floating tank 400: solid-liquid separation tank

500: high field redox adjusting device 510: tank structure

520: upper surface 530: inlet

540: side 550: electrode

560: water flow control panel 565: water flow guide pipe

570: porous plate 580: outlet

600: air dissolution device 610: micro bubble generator

700: sludge storage tank 800: discharge channel

900: contaminated water P: pump

The present invention relates to a water treatment system, and more particularly, a line filter for introducing contaminated water to remove solids, and a reaction for removing contaminants contained in the effluent by introducing the treated water through the filtration step. A reaction tank composed by selecting any one or more of an anaerobic tank for releasing phosphorus and denitrification, or a contact aeration tank for oxidizing and removing nitrogen, and the treated water having passed the contaminant removal step are introduced to remove solid sludge by air injury. Floating tank, solid-liquid separation tank to remove the fine sludge by introducing the treated water through the solid sludge removal step, sludge removed from the flotation tank or solid-liquid separation tank, the sludge is concentrated and discarded to separate the symbol water Sludge storage tank, to recover the symbol water after the sludge concentrate disposal step back to the anaerobic tank In the water treatment system comprising a collection and recovery line, a sludge conveying line for returning the sludge discharged from the contact aeration tank or flotation tank to the anaerobic tank, a discharge channel filled with a filter material for discharging the treated water after the fine sludge removal step In the high-level redox control device and the high-field oxidation to perform a reaction to selectively adjust to either an oxidizing environment or a reducing environment by applying a pulse wave high voltage to the introduced effluent by introducing a portion of the effluent after the step of removing the pollutants At least one conveying line for returning the effluent after the reduction adjustment step back to the reactor is characterized in that it is configured to further comprise.

Conventional water treatment systems have adopted a method to increase water treatment efficiency by additionally installing or treating side streams or chemical treatment equipment or processes according to the type and characteristics of the pollutants. Depending on the type and nature of the contaminated water, it is not possible to operate it flexibly, and it is difficult to meet the legal standards of existing facilities, and it is difficult to meet the legal standards. If you had a problem that costs a lot of cost and effort. In addition, in order to increase the efficiency of water treatment, a separate reflux device or process must be added to the existing water treatment system, and thus, there is a problem of requiring an increase or a renovation of the existing water treatment system. There is a problem that the treatment cost is excessively high and the treatment efficiency is low because it requires treatment.

As a way to solve this problem, Korean Patent Registration No. 0465456 proposes a wastewater treatment apparatus and method for removing nitrogen and phosphorus from the counterflow water, limited to only the counterflow water generated in the sludge treatment process. According to the proposed wastewater treatment apparatus and method, there is a limit to increase the overall treatment efficiency of the water treatment system by changing only the transfer line of returned water to use the existing aeration tank. In addition, in order to solve the problems of the conventional water treatment system composed only of physical treatment and chemical treatment processes and devices, the Korean Utility Model Registration No. 0293994 is floced by additionally installing an electrolysis device as a pretreatment device of a floating tank. The Korean Utility Model Registration No. 0401270 proposed a high concentration wastewater treatment process for treating high concentration wastewater as a method to help the survival of microorganisms by adjusting the pH by including an electrolysis device in the water treatment process. However, the process including the electrolysis device is limited to increase the treatment efficiency of the water treatment system as a whole because it is adopted only in some processes of the entire water treatment system, and the additional installation of the electrolysis device is excessively expensive and contaminated. Burnt according to type and property of material Typically there is a problem that you can not operate the water treatment system.

Accordingly, the present invention has been made to solve the above-mentioned problems,

By installing the low-cost, high-cost redox regulator as a pre-treatment device for the water treatment system, it is possible to reduce the cost of additional water treatment devices and processes according to the type and characteristics of the contaminated water. The purpose is to provide a water treatment system that can increase the efficiency of the.

In addition, the present invention is not a part of the water treatment system but a high-voltage redox regulator that can adjust the treatment environment of the entire water treatment system as needed, a functional carrier having aerobic and anaerobic functions at the same time, air dissolving apparatus using a micro bubble water treatment system In addition to this, it is possible to selectively adjust the environment of the water treatment system to an oxidizing environment or a reducing environment regardless of the type and characteristics of contaminated water that require treatment, thereby providing a water treatment system that can increase the overall water treatment efficiency. There is another purpose.

Water treatment system according to the present invention for achieving the above object is a line filter to remove contaminants by introducing contaminated water, the reaction to remove the contaminants contained in the effluent by introducing the treated water after the filtration step. And a reaction tank composed of at least one of an anaerobic tank for releasing phosphorus and denitrification, or a contact aeration tank for oxidizing and removing nitrogen and nitrogen, and the treated water having passed the contaminant removal step is introduced into the solid sludge by air injury. Sludge removed by flotation tank to remove the sludge removed from the flotation tank, the solid-liquid separation tank to remove the fine sludge by introducing the treated water passed through the solid sludge removal step, the sludge is concentrated and discarded and the symbol water is separated The sludge storage tank to recover, the symbol water after the sludge concentrate disposal step is recovered to the anaerobic tank again A water treatment system including a symbol recovery line, a sludge conveying line for conveying sludge discharged from the contact aeration tank or a flotation tank to the anaerobic tank, and a discharge channel filled with a filter medium for discharging the treated water that has undergone the fine sludge removal step. In the high-density redox control apparatus for performing a reaction to selectively adjust to either the oxidizing environment or the reducing environment by applying a pulse wave high voltage to the influent effluent by introducing a portion of the effluent after the step of removing the pollutants and the At least one conveying line for returning the effluent from the high-voltage redox adjustment step again to the reactor is characterized in that it is configured to further comprise.

Specifically, the line filter is a device that can be easily installed on the pipeline as a facility for reducing the size of the settling and sedimentation facilities by replacing the existing settling and primary sedimentation facilities or reducing the load caused by solids.

Specifically, the anaerobic tank is mainly responsible for the reaction of storing the dissolved organic matter contained in the contaminated water in the body of the anaerobic microorganisms and releasing phosphorus in the microorganism body, in some cases oxidized and nitrified in the contact aeration tank. Part of the reaction to denitrify the return water is also responsible. The dissolved organic matter is changed into a form of short chain fatty acid by anaerobic microorganisms, and is further converted into PHB (poly-P microorganism) by a condensed microorganism (or Poly-P microorganism) such as acinetobacter . Converted to the form of beta-hydroxybutyrate, poly-β-hydroxybutyrate, and stored. In this process, energy from hydrolysis of polyphosphate of anaerobic microorganisms is used, where the separated phosphorus is contaminated water. Will be released in large quantities.

Specifically, the contact aeration tank is a reaction tank of an environment in which the floating growth-type microorganisms and the attached growth-type microorganism coexist, and the contact aeration tank is responsible for the reaction of removing the organic material and nitrogen at the same time by the oxidation of organic matter and the oxidation of nitrogen. On the other hand, the phosphorus released in excess in the anaerobic tank is also responsible for the reaction to absorb and remove the phosphorus in excess over the amount released from the anaerobic tank using the aerobic microorganism in the contact aeration tank again.

At this time, a specially designed functional carrier unit is installed in the contact aeration tank, and the functional carrier unit can be fixed or suspended in the contact aeration tank. The functional carrier unit installed in the contact aeration tank is a functional carrier composed of an aerobic carrier portion for facilitating contact of water and an anaerobic carrier portion located at the center of the aerobic carrier portion with less water flow and fastening carriers coupled to the anaerobic carrier portion. A functional carrier unit having both an aerobic function and an anaerobic function, including means, is characterized in that the part having an anaerobic function is made to limit oxygen transfer, so that an oxygen-free environment is created so that the denitrification action is an anaerobic function of the functional carrier unit. Branches are made in parts. Therefore, the nitrogen in the oxidized state by the part having an aerobic function in the functional carrier unit is reduced by the part having the anaerobic function is released to the atmosphere in the form of nitrogen gas. At this point, some of the floating growth microorganisms (MLSS) are returned to the anaerobic tank.

Specifically, the flotation tank is a device for removing flotation by contacting the raw water containing the floating growth microorganisms (MLSS) introduced from the contact aeration tank with the air dissolved water of the air melting apparatus containing a large amount of microbubbles. On the other hand, the flotation tank uses a method of injecting the air dissolved water of the air dissolving device containing a large amount of micro-bubbles generated by the microbubble generator using a spray means for spraying the water at a constant pressure in the water, unlike the existing flotation tank Alternatively it is possible to separate flotation of flocs in flocs without the use of pressurized tanks. In this case, by adding and connecting a high-field redox adjusting device as a pretreatment device of the microbubble generating device, it is possible to improve the sludge removal ability in the floating tank. Some of the sludge injured in the flotation tank is transferred to the sludge storage tank, and some are returned to the anaerobic tank through the sludge conveying line.

Specifically, the solid-liquid separation tank is a device for separating and removing the micro-flocs generated in the contact aeration tank and fine sludge once again removed from the flotation tank. Therefore, the solid-liquid separation tank is preferably configured by selectively adding any one or more of the device required for separation of the other liquid, such as filter or membrane separation. Depending on the type of contaminated water, if the amount of sludge in the effluent discharged after being treated in the contact aeration tank is large, the separation and removal of sludge by air injury may not be sufficient in the flotation tank. It is possible to separate and remove the sludge sufficiently.

Specifically, the sludge storage tank is a place where the sludge (scum) injured in the flotation tank, sludge separated from the solid-liquid separation tank is collected and stored. The stored sludge is periodically discharged and disposed of, and the symbol water from which the sludge is removed is recovered to an anaerobic tank through the symbol water recovery line. After absorbing a large amount of phosphorus by aerobic microorganisms in the contact aeration tank in the water treatment system, the sludge containing excess phosphorus in the flotation tank and the solid-liquid separation tank is sufficiently removed to release the large amount of phosphorus present in the water treatment system to the outside of the system. Can be removed.

Specifically, the high-field redox adjusting device is a device for easily purifying various pollutants using high voltage pulse discharge, and is applied by applying a pulse wave high voltage of positive (+) or negative (-) to one or more electrodes installed inside the device. It is a device that plays a role of selectively creating the environment in either the oxidizing environment or the reducing environment.

The high-voltage redox regulator breaks down the hydrogen bonds of the water to be treated using high-voltage electric energy applied intermittently and forms water particles composed of a small number of clusters to enhance the activity of water. It can be increased to create an environment that can enhance oxygen solubility in the aeration tank.

The high-field redox control device can be made by selectively adjusting the oxidation or reduction environment according to the method of applying electrical energy into the device. In general, in order to denitrify the nitric oxide conveyed from the contact aeration tank, the electrode rod installed in the high-field redox regulator is operated in a reducing environment using the negative electrode, but in the case of using a high concentration organic wastewater as the treatment target, It is possible to operate by constructing the oxidizing environment with the electrode pole installed inside the high-field redox regulator as (+) pole. In addition, a high voltage electric field is formed inside the device, and the zeta potential of the organic or inorganic particles contained in the influent flowing into the device is changed to near the isoelectric point (0 mV), thereby allowing self-flocculation. It is also responsible for inducing the floc and forming flocs.

The high-voltage redox control device is applied to the water treatment system in a side stream manner in which only a part of the discharge water discharged from the contact aeration tank is introduced into the high-voltage redox control device, and is operated in addition to the water treatment system. It can be applied to a wide range of applications where the adjustment of the oxidizing environment or the reducing environment, such as air purification facilities, is needed selectively, or where the adjustment of the zeta potential is required. In addition, it can be easily installed in the pipeline and because it is small, no additional installation space is required, and the power consumption is also less than 100 Watts (Watt) is economical.

Specifically, the effluent is a device for discharging the treated water that has undergone the fine sludge removal step, depending on the condition of the effluent and whether or not to require advanced treatment any one or more of sand, gravel, activated carbon, and other porous materials It is possible to fill the filter medium consisting of.

The water treatment system according to the present invention is a microbubble generating device for generating a microbubble to the introduced treated water by introducing a portion of the treated water undergoing the step of removing the fine sludge, introduced into the treated water passed through the microbubble generating step High-voltage redox adjusting device for selectively adjusting either the oxidizing environment or the reducing environment by applying a pulse wave high voltage to the treated water, and air soluble to dissolve the air by introducing the treated water that has undergone the high-field redox adjusting step. It characterized in that it further comprises an air melting water line for conveying the device and the air dissolved water passed through the air melting step to the flotation tank.

Specifically, the air soluble device using the micro bubbles generated by the micro bubble generator is a device that serves to supply the air dissolved water flowing into the floating tank. The microbubble generating device is a registered utility model of Korean Utility Model Registration No. 0359766, the microbubble generating device injects water and delivers it to the microbubble generating means and adjusts the water injection means and gas to control the flow rate and pressure of the incoming water. And a gas injection means for controlling the flow rate and pressure of the gas flowing into the micro bubble generating means to be described later, and receiving water and gas from the inflow water transmission means and the gas injection means, respectively, to form micro bubbles in the inflow water using a micro filter. It is characterized in that it comprises a micro-bubble generating means for generating, if necessary, it can be installed by adding a magnetic resonance device capable of splitting the water molecule cluster to the reduction potential to the water injection means. The magnetic resonance apparatus for pipes is a well-known technique and is mainly used for rust prevention of pipes and for crushing water molecular clusters. The active water charged by the high-strength redox regulator for piping changes the charge of the gas while contacting the gas from the microfilter and cuts the gas column by the flowing force to generate the charged microbubbles. Charged microbubbles help to flocculate organic or inorganic contaminants in contaminated water. The fine air generated by the fine air generating device is injected into the raw water supply pipe of the air melting device, and is dissolved by supersaturation in the air melting device. At this time, the air melting device is preferably a line mixer (Line Mixer) type air melting device.

The discharged water selectively adjusted to the oxidizing or reducing environment as necessary is then mixed with the microbubbles generated by the microbubble generating device and sent to the flotation tank again. Adjusted treated water aids in flocculation of contaminants in the flotation tank, facilitating the separation and removal of sludge by air injury.

In the water treatment system according to the present invention, the reaction tank is composed of an anaerobic tank and a contact aeration tank, and a portion of the treated water that has undergone the contaminant removal step in the anaerobic tank is introduced to adjust the reducing environment by applying a pulse wave high voltage to the introduced treated water. The first high-voltage redox adjusting device, the first conveying line for returning the treated water undergoing the reducing environment adjustment step to the anaerobic tank, a portion of the treated water undergoing the contaminant removal step in the contact aeration tank is introduced into the treatment And a second high field redox adjusting apparatus for adjusting the oxidizing environment by applying a pulse waveform high voltage to the water, and a second conveying line for conveying the treated water that has undergone the oxidizing environment adjusting step to the contact aeration tank.

In this way, the high-voltage redox adjusting device can be added to the reducing environment or the oxidizing environment to activate the reaction for removing contaminants by microorganisms in the anaerobic tank and the contact aeration tank, thereby increasing the efficiency of the water treatment system. Can be.

In the water treatment system according to the present invention, the reaction tank is composed of an anaerobic tank and a contact aeration tank, by introducing a portion of the treated water after the contaminant removal step in the contact aeration tank, by applying a pulse wave high voltage to a portion of the introduced treated water The first high field redox adjusting device for adjusting to a reducing environment, the first return line for returning the treated water that has undergone the reducing environment adjusting step to the anaerobic tank, and the remaining water except for the treated water flowing into the first high field redox adjusting device. A second high-voltage redox adjusting device for adjusting the oxidizing environment by applying a pulse wave high voltage to the treated water by introducing the treated water and a second conveying line for conveying the treated water having undergone the oxidizing environment adjusting step to the contact aeration tank. It is characterized in that it further comprises.

Some of the treated water undergoing the contact aeration tank is returned to the anaerobic tank or the contact aeration tank after being adjusted to the reducing environment or the oxidizing environment, but as a pump, some treated water is adjusted to the reducing environment and returned to the anaerobic tank, and the rest is the oxidizing environment. It is possible to form two conveying lines to be controlled and controlled by the contact aeration tank at the same time, so that one pump can be reduced, thereby reducing the apparatus cost of the system configuration.

In the water treatment system according to the present invention, the reaction tank is composed of an anaerobic tank and a contact aeration tank, and a portion of the treated water that has undergone the contaminant removal step in the anaerobic tank is introduced, and a pulse wave high voltage is applied to the treated water to adjust the reducing environment. The first high-long-term oxidation redox adjusting device, a return line for returning the treated water that has undergone the reducing environment adjustment step to the anaerobic tank, and a portion of the treated water that has undergone the fine sludge removal step are introduced to generate fine bubbles in the introduced treated water. The second high-voltage redox reduction apparatus for performing a reaction to selectively adjust to either an oxidizing environment or a reducing environment by applying a pulse wave high voltage to the introduced treated water by introducing the fine bubble generating device and the treated water having undergone the fine bubble generating step. Adjusting device, air for dissolving air by introducing the treated water that has passed through the second high-long-state redox adjusting step Haejang value and the number of dissolved air subjected to the air melting step characterized in that further comprising: a dissolved air can be fed to the line to the contact aeration tank.

In the water treatment system according to the present invention, the reaction tank is composed of only the contact aeration tank, the microbubble generating device for generating a microbubble in the introduced treated water by introducing a portion of the treated water after the contaminant removal step in the contact aeration tank, A high-voltage redox adjusting apparatus for performing a reaction for selectively adjusting either an oxidizing environment or a reducing environment by applying a pulse wave high voltage to the introduced treated water by introducing the treated water that has undergone the microbubble generating step, and the high-extension redox adjusting Air dissolving apparatus for dissolving air by introducing the treated water passed through the step and the air dissolved water line for conveying the air dissolved water passed through the air dissolving step to the contact aeration tank.

In the water treatment system according to the present invention, a microbubble generating device for generating a microbubble by introducing a part of the effluent discharged through the effluent passage filled with the filter medium, the effluent flowing through the microbubble generation step introduced into the effluent A high-voltage redox regulator for performing a reaction to selectively adjust to either an oxidizing environment or a reducing environment by applying a pulse waveform high voltage, an air dissolving apparatus for dissolving air by introducing effluent water through the high-voltage redox adjusting step, and the air Characterized in that it further comprises an air dissolved water line for conveying the air dissolved water passed through the dissolution step to the discharge water filled with the filter medium.

In the water treatment system according to the present invention, the micro-bubble generating device is a water injection means for controlling the flow rate and pressure of the incoming water and the water flowing into the micro-bubble generating means, the microbubble generating means to be described later by introducing the gas Gas injection means for transmitting and adjusting the flow rate and pressure of the gas flowing in, the micro-bubble generating means for receiving the water and gas from the inflow water delivery means and the gas injection means respectively to generate fine bubbles in the inlet water using a fine filter and the And a spraying means for spraying the inflow water containing the microbubbles generated by the microbubble generating means in water at a constant pressure, among which the microbubbles are generated by the microbubble generating means. Injection means for injecting the water into the water at a constant pressure is installed in the lower portion of the floating tank It is desirable.

In the water treatment system according to the present invention, the high-field redox device has at least one inlet port in the center of the upper surface and at least one outlet port in the lower part of the side surface as a basic structure. Below the upper surface, a water flow control plate is installed in the tank parallel to the upper surface at regular intervals, and the water flow control plate is integrally formed with at least one water induction pipe which is formed vertically downward of the water flow control plate. Consists of. The water induction pipe is a device for allowing the water introduced into the inlet to flow down after fully reacting with an electrode rod inserted into the water induction pipe.

On the other hand, at least one electrode rod is inserted into the water flow guide tube from the upper surface is installed, the electrode selected from any one of the positive electrode or the negative electrode through a connecting line from the electrical energy supply device is installed outside the tubular structure A pulse waveform high voltage with polarity of is applied. In this case, the electrode is preferably surrounded by an insulator material in order to prevent loss or breakage of the electrode during discharge, and one or more appropriate numbers of electrodes may be installed in the apparatus to form an oxidizing environment or a reducing environment. It is preferable to install a plurality of electrodes in order to obtain a sufficient reaction effect compared to the short residence time of.

On the other hand, the perforated plate is installed in parallel to the lower portion of the water flow control plate, the porous plate has a residence time enough to be adjusted to the oxidizing environment or reducing environment by the electrode sufficiently flowed through the water induction pipe from the top At least one permeation hole is formed as a device to be introduced into the lower portion.

The water that needs to be adjusted to the oxidizing or reducing environment through the upper inlet is temporarily stored in the upper part by the water flow control panel located in the upper part of the tank, and then adjusted to the oxidizing or reducing environment through the water pipe installed with the electrode rod. Later, it flows down to the perforated plate located in the lower part of the inside of the tank, and flows to the bottom through the hole installed in the perforated plate, and then is discharged to the outside of the tank through the outlet.

In this way, the water flow control panel and the through-plate installed inside the tank can sufficiently adjust the redox environment to the oxidizing or reducing environment by the electrode rod, and the residence time of the water can be lengthened. After sufficient adjustment to the environment or reducing environment, it can be discharged to the outside of the tank.

In the water treatment system according to the present invention, the contact aeration tank is characterized in that it further comprises a functional carrier unit having an aerobic function and an anaerobic function is installed inside the tank, the functional carrier unit is easy to contact the water flow At the same time having aerobic and anaerobic function comprising a functional carrier consisting of the anaerobic carrier portion and the anaerobic carrier portion having a low contact of water and located in the center of the aerobic carrier portion and the carrier fastening means coupled to the anaerobic carrier portion It features.

Hereinafter, the water treatment system of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is an embodiment of the water treatment system according to the present invention, by introducing a portion of the treated water 920 from the reaction tank 200 back to the high-voltage redox apparatus 500 to selectively adjust to the oxidizing environment or reducing environment After showing the process diagram for the water treatment system to be conveyed back to the reaction tank 200 through the conveying line 950.

Specifically, the contaminated water 900 introduced into the line filter 100 primarily filters the solids or suspended matters contained in the contaminated water from the line filter 100, and the discharged water discharged through the line filter 100. 910 is introduced into the reaction tank 200 is configured by selecting any one or more of the anaerobic tank or contact aeration tank. The treated water 920 in which the organic material, nitrogen, etc. are removed from the reaction tank 200 is sent to the flotation tank 300 which is a device for removing sludge by air injury, and some sludge in the flotation tank 300. The removed treated water 930 is sent to the solid-liquid separation tank 400 again. A part of the sludge removed from the flotation tank is transferred to the sludge storage tank 700 through the sludge transfer line 307, and the remaining sludge is returned to the reaction tank 200 through the flotation tank sludge transfer line 302. Some of the treated water 940 in which the sludge has been removed from the solid-liquid separation tank 400 is discharged, and some of the treated water that is not discharged again is the microbubble generating device 610, the high-voltage redox adjusting device 502, and air. Slurry (scum) separated from the solid-liquid separation tank 400 is sent to the flotation tank 300 again through the dissolution apparatus 600, etc. sequentially, the solid-liquid separation tank sludge The sludge storage tank 700 is transferred to the sludge storage tank 700 through a recovery line 407.

2 is an embodiment of the water treatment system according to the present invention, the anaerobic tank 210 and the contact aeration tank 220 is composed of a reaction tank 200, each of which is configured by further adding a high-extension oxidation reduction control device as a pretreatment device The process diagram for the water treatment system is shown.

Specifically, some of the treated water 921 treated in the anaerobic tank 210 flows back into the first high-elevation redox adjusting device 501 to be adjusted to a reducing environment and then through the first conveying line 951 to the anaerobic tank ( Some of the treated water 922 which is returned to 210 and processed in the contact aeration tank 220 flows back into the second high-extension redox adjusting device 502 to be adjusted to the oxidizing environment, and then the second conveying line 952 It is conveyed to the contact aeration tank 220 through. Meanwhile, some of the treated water 940 from which the sludge has been removed from the solid-liquid separation tank 400 is discharged, and some of the treated water not discharged again is the microbubble generating device 610 and the high-voltage redox adjusting device 500. After passing through the air dissolving apparatus 600, etc., the air discharging line 960 is sequentially sent to the flotation tank 300 again.

Figure 3 is an embodiment of the water treatment system according to the present invention, the anaerobic tank 210 and the contact aeration tank 220 is composed of a reaction tank 200, each of the high-extension oxidation reduction control device 500 is added to the pretreatment device One, using only one pump shows a process diagram for a water treatment system composed of separate conveying lines, respectively.

Specifically, a part of the treated water 922 is introduced from the contact aeration tank 220, but a part of the introduced treated water is adjusted to a reducing environment through the first high-elevation redox device 501, so that the first transport line 951 is used. The treated water is returned to the anaerobic tank 210), except for the treated water introduced into the first high-knitrous oxide reduction / adjustment device 951 to form a sidestream without installing a separate pump to form the second high-jangjang-oxidation. After adjusting to the redox mirror through the reduction adjusting device 502 it is conveyed to the contact aeration tank 220 through the second conveying line (952). In this case, the pump installation is reduced, which reduces the configuration cost of the system.

4 is an embodiment of the water treatment system according to the present invention, the reactor 200 is composed of an anaerobic tank 210 and the contact aeration tank 220, a portion of the treated water 921 treated from the anaerobic tank 210 After adjusting to the reducing environment through the first high-long-state redox adjusting device 501, the water is returned to the anaerobic tank 210 through the first conveying line 951 and discharged from the solid-liquid separation tank 400 (940). Some of the) through the microbubble generating device 610, the second high field redox adjusting device 502, the air dissolving device 600 sequentially through the air melting water line 960 back to the contact aeration tank 220 The flowchart of the water treatment system which consists of conveying is shown.

At this time, the injection means for injecting the water inlet water containing the micro-bubbles generated by the micro-bubble generating means at a constant pressure is preferably included in the lower portion of the contact aeration tank.

5 is an embodiment of the water treatment system according to the present invention, the reaction tank 200 is composed of only the contact aeration tank 220, by introducing a portion of the treated water 922 treated in the contact aeration tank 220, Water treatment system consisting of conveying back to the contact aeration tank 220 through the air melting water line 960 through the bubble generating device 610, high redox redox adjusting device 500, air dissolving device 600 in sequence It shows a process chart for.

At this time, some of the sludge flowing out of the contact aeration tank is transferred to the sludge storage tank 700 through the sludge transfer line 227, the number of symbols remaining after the sludge is concentrated in the sludge storage tank 700 is a symbol recovery line The contact aeration tank 220 is recovered again through 705.

6 is a portion of the effluent 980 through the effluent passage 800 filled with the filter medium again through the microbubble generating device 610, high redox redox adjusting device 500, air dissolving device 600 sequentially It is related to the water treatment system consisting of conveying back through the air melting water line 960 back to the effluent water 800 filled with the filter medium.

FIG. 7 illustrates an embodiment of the high-field redox adjusting apparatus 500, which is one of the devices constituting the water treatment system according to the present invention. FIG. 7A is a perspective view and FIG. 7B is a sectional view.

The high redox redox adjusting device 500 has a tank structure having at least one inlet port 530 at the center of the upper surface 520 and at least one outlet port 580 at the bottom of the side surface 540. 510, and the water flow control panel 560 is installed in the tank parallel to the upper surface 520 at regular intervals below the upper surface 520. On the other hand, the water flow control panel 560 is configured with at least one water induction pipe 565 formed vertically downward. On the other hand, an electrode rod 550 is inserted into the water induction pipe 565 from the upper surface 520 is installed, wherein the inner diameter of the water induction pipe 565 is inserted into the electrode rod 550 is to be installed It is desirable that it is enough. The electrode 550 is applied with a pulse waveform high voltage having one polarity selected from a positive electrode or a negative electrode through a connection line from an electric energy supply device installed outside the tank structure 510. On the other hand, the porous plate 570 is installed in the tank in parallel to the lower portion of the water flow control panel 560 at regular intervals, preferably formed below the water induction pipe 565, the permeation hole 575 is At least one is formed. In FIG. 7A and FIG. 7B, the illustration of the electric energy supply device among the above components is omitted.

The present invention is not limited to the technical spirit of the specific embodiments or drawings described above, and those skilled in the art without departing from the gist of the invention claimed in the claims Various modifications can be made by anyone, as well as such changes are within the scope of the claims of the present invention.

As described above, the water treatment system according to the present invention further comprises a high-voltage redox adjusting device in the system, thereby forming an oxidizing environment or a reducing environment elastically according to the type of contaminated water requiring treatment, thereby treating the contaminated water. Compared to the existing water treatment system, which requires a different water treatment process depending on the type, it is possible to flexibly treat various pollutants, thereby reducing the cost of constructing the water treatment system and effectively operating the system. .

In addition, as a pretreatment device of the treatment device constituting the water treatment system according to the type and characteristics of the contaminated water, it further comprises a high-voltage redox adjusting device that can arbitrarily create an oxidizing environment or a reducing environment, thereby changing the physical and chemical changes of water by the electric field. In other words, by inducing viscosity, zeta potential, conductivity, oxygen solubility, etc., it is possible to construct a water treatment system with good treatment efficiency by creating a good growth environment of microorganisms that are responsible for removing contaminants from an anaerobic or contact aeration tank. In addition to the effect, there is an effect that the floc of the sludge can be easily made to increase the efficiency of sludge removal.

In addition, by installing a functional carrier having an aerobic and anaerobic function in the contact aeration tank, the efficiency of water treatment in the contact aeration tank can be increased, and the water treatment can be efficiently carried out without the need for additional equipment according to the type and characteristics of the contaminated water. The effect can be obtained.

Claims (11)

Line filter to remove contaminants by introducing contaminated water, perform the reaction to remove the contaminants contained in the effluent by flowing the treated water through the filtration step, and to remove anaerobic or organic substances and nitrogen to release phosphorus and denitrification Reaction tank composed by selecting any one or more of the contact aeration tank to be oxidized to remove, flotation tank to remove the solid sludge by air injury by introducing the treated water through the contaminant removal step, the treated water through the solid sludge removal step The solid-liquid separation tank to remove fine sludge by introducing the sludge, the sludge removed from the flotation tank or solid-liquid separation tank is introduced into the sludge is concentrated and discarded, the sludge reservoir tank to separate the symbol water, the symbol water after the sludge thickening waste Symbol recovery line to recover to the anaerobic tank again, the treated water after the fine sludge removal step In a water treatment system comprising a discharge channel filled with a filter medium to be discharged,  A high-voltage redox regulator for performing a reaction for selectively adjusting any one of an oxidizing environment and a reducing environment by applying a pulse wave high voltage to the introduced effluent by introducing a part of the effluent from the reactor through the pollutant removal step; And And at least one conveying line for returning the effluent water, which has been subjected to the high redox redox adjustment step, to the reactor again. The method of claim 1, A microbubble generating device generating microbubbles in the introduced treated water by introducing a portion of the treated water that has undergone the fine sludge removing step; A high-voltage redox adjusting apparatus for performing a reaction for selectively adjusting any one of an oxidizing environment and a reducing environment by applying a pulse wave high voltage to the introduced treated water by introducing the treated water having undergone the microbubble generating step; An air dissolving apparatus for dissolving air by introducing the treated water that has undergone the high redox redox adjusting step; And The water treatment system, characterized in that it further comprises an air dissolved water line for conveying the air dissolved water passed through the air melting step to the floating tank. The method of claim 2, The reactor consists of anaerobic tank and contact aeration tank, A first high field redox adjusting apparatus for introducing a portion of the treated water that has undergone the contaminant removal step in the anaerobic tank to adjust a reducing environment by applying a pulse wave high voltage to the introduced treated water; A first conveying line for returning the treated water that has undergone the reducing environment adjustment step to the anaerobic tank; A second high electric field redox adjusting apparatus for introducing a portion of the treated water that has undergone the step of removing contaminants from the contact aeration tank and applying a pulse waveform high voltage to the introduced treated water to adjust the oxidation environment; And a second conveying line for conveying the treated water that has undergone the oxidizing environment adjusting step to the contact aeration tank. The method of claim 2, The reactor consists of anaerobic tank and contact aeration tank, A first high-extension redox adjusting apparatus for introducing a portion of the treated water that has undergone the step of removing contaminants from the contact aeration tank and applying a pulse waveform high voltage to a portion of the introduced treated water to adjust the reducing environment; A first conveying line for returning the treated water that has undergone the reducing environment adjustment step to the anaerobic tank; A second high redox redox adjusting device for adjusting the oxidized environment by applying a pulse wave high voltage to the introduced treated water by introducing remaining treated water except the treated water flowing into the first high redox redox adjusting device; And And a second conveying line for conveying the treated water having undergone the step of adjusting the oxidizing environment to the contact aeration tank. The method of claim 1, The reactor consists of anaerobic tank and contact aeration tank, A first high field oxidation reduction adjusting device for introducing a portion of the treated water that has undergone the contaminant removing step in the anaerobic tank and applying a pulse waveform high voltage to the introduced treated water to adjust the reducing environment; A return line for returning the treated water that has undergone the reduction environment adjustment step to the anaerobic tank; A microbubble generating device generating microbubbles in the introduced treated water by introducing a portion of the treated water that has undergone the fine sludge removing step; A second high field redox adjusting device configured to perform a reaction for selectively adjusting any one of an oxidizing environment and a reducing environment by applying a pulse wave high voltage to the introduced treated water by introducing the treated water having undergone the microbubble generating step; An air dissolving apparatus for dissolving air by introducing the treated water that has undergone the second high-extension oxidation reduction step; And And an air dissolved water line for conveying the air dissolved water that has passed through the air dissolved step to the contact aeration tank. The method of claim 1, The reaction tank is composed of only the contact aeration tank, A microbubble generating device for generating a microbubble in the introduced treated water by introducing a portion of the treated water that has undergone the step of removing contaminants from the contact aeration tank; A high-voltage redox adjusting apparatus for performing a reaction for selectively adjusting any one of an oxidizing environment and a reducing environment by applying a pulse wave high voltage to the introduced treated water by introducing the treated water having undergone the microbubble generating step; An air dissolving apparatus for dissolving air by introducing the treated water that has undergone the high redox redox adjusting step; And And an air dissolved water line for conveying the air dissolved water that has passed through the air dissolved step to the contact aeration tank. The method of claim 1, A microbubble generating device generating microbubbles by introducing a part of the discharged water discharged through the discharge channel filled with the filter medium; A high-voltage redox regulator for performing a reaction for selectively adjusting either an oxidizing environment or a reducing environment by applying a pulse wave high voltage to the effluent flowing into the effluent after the microbubble generation step; An air dissolving apparatus for dissolving air by introducing effluent water having undergone the high-voltage redox adjusting step; And The water treatment system, characterized in that it further comprises an air dissolved water line for conveying the air dissolved water passed through the air melting step to the discharge water filled with the filter medium. The method according to any one of claims 2 to 7, The microbubble generating device, Water injection means for introducing the water to the microbubble generating means and to control the flow rate and pressure of the incoming water; Gas injecting means for introducing the gas to the micro-bubble generating means to be described later to adjust the flow rate and pressure of the gas to be introduced; Microbubble generating means for receiving water and gas from the inflow water delivery means and the gas injection means, respectively, to generate microbubbles in the inflow water using a microfilter; And And a spraying means for spraying the inflow water containing the microbubbles generated by the microbubble generating means into the water at a constant pressure. The method according to any one of claims 1 to 7, The high field redox adjusting device, A jaw structure having at least one inlet at a central portion of the upper surface and at least one outlet at a lower portion of the side surface; A water flow control panel installed in the tank parallel to the upper surface under the upper surface at regular intervals and having at least one water flow guide tube vertically formed downward; At least a pulse wave high voltage having one polarity selected from a positive electrode or a negative electrode is applied through a connecting line from an electric energy supply device installed to be inserted into the water flow guide tube from the upper surface and installed outside the tubular structure. One or more electrodes; And Water treatment system, characterized in that consisting of a perforated plate is installed in the tank parallel to the lower portion of the water flow control plate at regular intervals, and formed with at least one permeation hole. The method according to any one of claims 1 to 7, The contact aeration tank, Installed inside the contact aeration tank, A water treatment system, further comprising a functional carrier unit having both aerobic and anaerobic functions. The method of claim 10, The functional carrier unit, A functional carrier composed of an anaerobic carrier portion for facilitating contact of water streams and an anaerobic carrier portion located at the center of the aerobic carrier portion with less water flow contact; And Water treatment system, characterized in that having both an aerobic function and anaerobic function comprising a carrier fastening means coupled to the anaerobic carrier portion.

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