WO2022163880A1 - System for treating dye wastewater and high-concentration wastewater, and method therefor - Google Patents

Abstract

A system for treating dye wastewater and high-concentration wastewater, according to the present invention, can effectively treat wastewater while minimizing the use of chemicals, and includes a settling/screening tank (1a), a flowrate control tank (2), a primary electrolysis device (3a), a pressurization and flotation tank (4), an anoxic tank (5), an anaerobic tank (6), a contact aeration tank (7), a membrane separation tank (8), a secondary electrolysis device (3b), a drain tank (1b) and a sludge treatment part (9). The method for treating dye wastewater and high-concentration wastewater, according to the present invention, sequentially performs a screening tank treatment step, a flowrate control tank treatment step, a primary electrolysis step, a pressurization and flotation tank treatment step, an anoxic tank treatment step, an anaerobic tank treatment step, a contact aeration tank treatment step, a membrane separation tank treatment step, a secondary electrolysis step, a drain tank treatment step, and a sludge treatment step.

Description

System and method for treatment of dyeing wastewater and high-concentration wastewater

The present invention relates to a system and method for treating dyeing wastewater and high concentration wastewater, and more particularly, to a dyeing wastewater that can simplify and simplify wastewater treatment facilities and effectively treat wastewater while minimizing the use of chemicals and to a system and method for treating high concentration wastewater.

In general, a method of removing contaminants and microorganisms contained in wastewater is carried out independently or mixed with a biological method and a chemical method, and goes through a process of separating untreated residues.

The biological method is a method of decomposing and removing wastewater using microorganisms, and the quality of the treated water is greatly affected by the solid-liquid separation efficiency in the sedimentation tank. As a result, the grown microorganisms are precipitated in the form of sludge in the sedimentation tank, separated and removed from water.

In the chemical method, large particles of sludge are separated from the wastewater through a screen device, etc., and the wastewater from which the sludge is separated is chemically treated through various chemical components during the pretreatment process that goes through the reaction tank, neutralization tank, and coagulation tank to adjust the pH. Although it effectively removes pigments, suspended substances, and difficult-to-decompose COD substances, there is a concern that secondary pollution due to a large amount of chemical components and an increase in the amount of sludge generated by chemicals may occur.

On the other hand, various studies have been made to improve the treatment efficiency of dyeing wastewater or high-concentration wastewater by using the above-described biological and chemical methods in parallel.

For example, Korean Patent Laid-Open Publication No. 10-2017-0101162 discloses a method for treating high concentration maintenance wastewater.

This high-concentration maintenance wastewater treatment method includes a wastewater pretreatment step, moving animal fats and oils that have passed through a pressurized flotation tank by the wastewater pretreatment to a batch storage tank, and 4 to 8 days so that the pH of the animal fats and oils transferred from the batch storage tank becomes neutral. It includes the step of treating during the water treatment and mixing the treated animal fats and oils in a contact aeration tank.

Although the above-described high-concentration maintenance wastewater treatment method can stably purify high-concentration maintenance wastewater, the wastewater passes through a screen and flows into a water collecting tank, is pretreated in a reaction tank, a neutralization tank, and a coagulation tank, and then moves to a pressurized flotation tank. The supernatant water treated in the pressurized flotation tank is discharged after passing through the flow control tank, the contact aeration tank, and the settling tank.

Conventional wastewater treatment methods such as the aforementioned Patent Publication No. 10-2017-0101162 have disadvantages in that a relatively large land area is required and facilities such as a reaction tank, a neutralization tank, and a coagulation tank are required, which require facility investment costs.

In addition, conventional wastewater treatment methods such as Patent Publication No. 10-2017-0101162 require a large amount of chemicals such as coagulants and neutralizers during pretreatment, so there is a problem in that secondary pollution due to chemical components and the amount of sludge generated by chemicals increase. have.

In addition, the conventional wastewater treatment method such as Patent Publication No. 10-2017-0101162 has a disadvantage in that the removal efficiency of the difficult-to-decomposable substances or chromaticity contained in the dyeing wastewater is low.

In addition, the conventional wastewater treatment method has an excessive amount of generated sludge, which causes air pollution due to incineration of the sludge, increases the land area of landfill due to the increase in the amount of landfill, and causes secondary environmental pollution due to leachate. have.

In addition, if the sludge is post-processed by methods such as landfill method, incineration method, and marine dumping method, the treatment cost increases. There is an urgent need for technology.

The present invention has been proposed in view of the above, and a system and method for treating dyed wastewater and high-concentration wastewater that can simplify and simplify wastewater treatment facilities and effectively treat wastewater while minimizing the use of chemicals Its purpose is to provide

Another object of the present invention is to provide a system and method for treating dyeing wastewater and high-concentration wastewater, which can easily remove difficult-to-decompose substances or chromaticity contained in dyeing wastewater or high-concentration wastewater.

Another object of the present invention is to provide a system and method for treating dyed wastewater and high-concentration wastewater, which can minimize environmental pollution and reduce wastewater treatment costs by effectively reducing the amount of sludge.

In order to achieve the above object, a system for treating dyeing wastewater and high-concentration wastewater according to the present invention includes: a sedimentation/screen tank for removing solids contained in the wastewater introduced in the system for treating dyeing wastewater and high-concentration wastewater; a flow rate adjustment tank for adjusting the flow rate of wastewater passing through the sediment/screen tank; a primary electrolysis device that primarily performs an electrochemical treatment process of wastewater passing through the flow control tank; a pressurized flotation tank for coagulating and floating the flocs by bringing the bubbles generated from the bubble generator into contact with the wastewater that has passed through the primary electrolysis device; an anoxic tank for removing nitrogen and organic matter by denitrifying nitrate nitrogen using organic matter contained in the wastewater passed through the primary electrolysis device; an anaerobic tank to allow residual denitrification and phosphorus release by using the organic matter remaining in the wastewater passing through the anaerobic tank; a contact aeration tank configured to contact and grow microorganisms with organic matter remaining in the wastewater passing through the anaerobic tank to form microbial flocs and return a portion of the sludge to the flow rate control tank; a membrane separation tank for nitrification and microbial separation by membrane separation of the wastewater passing through the contact aeration tank; a secondary electrolysis device for performing an electrochemical treatment process of wastewater passing through the membrane separation tank; a drainage tank in which wastewater passing through the secondary electrolysis device is introduced and supernatant water is discharged; and a sludge treatment unit in which the sludge of the contact aeration tank is introduced and concentrated and removed.

The sludge treatment unit may include: a thickening tank configured to concentrate the sludge flowing in from the contact aeration tank and return supernatant water to the flow rate control tank; a sludge reduction device for reducing the weight by rotating the sludge discharged from the thickener at high speed; and a dehydrator for dewatering the moisture in the sludge discharged from the sludge reduction device to separate solid and liquid.

The contact aeration tank is configured with a first return line and a second return line to selectively return a portion of the generated sludge to the flow rate control tank or the anaerobic tank, and the membrane separation tank transfers the generated sludge to the primary electrolysis device or the A third return line and a fourth return line are configured to selectively return to the anoxic tank, and the concentration tank may include a fifth return line configured to return the generated supernatant to the flow rate control tank.

The primary electrolysis device and the secondary electrolysis device may include: an electrolysis body provided with an electrolysis chamber in which wastewater is introduced and accommodated; a stirrer installed in the electrolysis body; an electrolysis unit installed in the electrolysis chamber and having a plurality of positive and negative electrode plates and a pole plate mounting table on which the positive and negative plates are installed, and a power supply unit for supplying power for electrolysis to the negative electrode and positive plate; an inlet line connected to the electrolysis body; a discharge line connected to the electrolysis body and provided with a discharge control valve; a water level sensing unit installed to detect the level of wastewater flowing into the electrolysis chamber; a pressure pump for pumping wastewater to the electrolysis chamber through the inlet line; and an electrolysis device control unit for controlling the driving of the pressure-feeding pump based on the detection signal of the water level sensing unit.

On the other hand, the sludge reduction device, a drive shaft rotatably installed on the base frame; a drum rotatably connected to the drive shaft and having a plurality of perforations; a drum driving means connected to generate and apply a rotational force for rotating the drum; a processing chamber disposed to surround the outside of the drum and formed with an outlet; and a plurality of plasma radiation electrodes installed in the processing chamber, and a plasma generator having a plasma generator for applying a high voltage to the plasma radiation electrodes.

The drum may include an inner drum which is installed on the drive shaft, rotates and has a plurality of perforations, and an outer drum which is disposed to surround the outside of the inner drum and has a plurality of perforations.

The drum driving means may include an internal drum driving means connected to generate and apply a rotational force to the drive shaft, and an external drum driving means connected to rotate the external drum.

The drive shaft includes a first drive shaft and a second drive shaft connected to one side and the other side of the inner drum, and at least one of the first drive shaft and the second drive shaft has a sludge movement path formed therein, so that the inner drum It may consist of a hollow pipe to feed the sludge into the furnace.

The sludge reduction device may include a magnetic field generator installed to apply a magnetic force to the sludge moving outside the hollow pipe.

In order to achieve the above object, a method for treating dyeing wastewater and high-concentration wastewater according to the present invention includes a screen bath treatment step of removing solids contained in the wastewater introduced by the sedimentation/screen bath; a flow rate adjustment tank processing step of adjusting the flow rate of wastewater passing through the sediment/screen tank in the flow rate adjustment tank; a primary electrolysis step of primarily removing contaminants and chromaticity by using the oxidizing power of OH radicals through the electrochemical treatment process of the wastewater passing through the flow control tank; and a pressurizing flotation tank treatment step of contacting the wastewater introduced into the pressurizing flotation tank via the primary electrolysis device with the bubbles generated by the bubble generating device so that the flocs are agglomerated and floated.

And, in the method for treating dyeing wastewater and high-concentration wastewater according to the present invention, nitrate nitrogen is denitrified using organic matter contained in wastewater while the wastewater passing through the primary electrolysis device is retained in the anaerobic tank for 1 to 9 hours. anoxic treatment step of oxidizing to remove nitrogen and organic matter; an anaerobic tank treatment step of maintaining the wastewater passing through the anaerobic tank in the anaerobic tank for 4 to 8 hours and using the remaining organic matter to perform residual denitrification and phosphorus release; a contact aeration tank treatment step of forming microbial flocs by contacting and growing microorganisms with organic matter remaining while aeration of wastewater passing through the anaerobic tank in the contact aeration tank; a membrane separation tank treatment step of nitrifying and separating microorganisms from the wastewater passing through the contact aeration tank in the membrane separation tank; A secondary electrolysis step of performing a secondary electrolysis step of removing contaminants and chromaticity by using the oxidizing power of OH radicals through the electrochemical treatment process by the secondary electrolysis device of the wastewater passing through the membrane separation tank; a sump treatment step of receiving the wastewater passing through the secondary electrolysis device in the sump and discharging the supernatant; and a sludge treatment step of concentrating, reducing, and removing the sludge generated from the contact aeration tank using the sludge treatment unit.

The step of treating the contact aeration tank may include selectively returning a portion of the sludge generated in the contact aeration tank to the flow rate control tank or the anoxic tank.

The membrane separation tank treatment step may include selectively returning a portion of the sludge generated in the membrane separation tank to the primary electrolysis device or the anoxic tank.

The sludge treatment step includes a thickening tank process for concentrating the sludge generated by the contact aeration tank treatment step through a settling process, a sludge reduction process for physically reducing the sludge that has undergone the concentration process, and dewatering the sludge that has undergone the sludge reduction process. It may include a dehydration process.

According to the system and method for treating dyed wastewater and high-concentration wastewater according to the present invention, a large amount of land and facility investment cost is required by connecting an electrolysis device and a pressurized flotation tank and performing a multi-stage sludge treatment process during wastewater treatment As facilities such as a reactor, neutralization tank and coagulation tank are unnecessary, wastewater treatment facilities can be simplified and simplified, and the use of chemicals can be reduced. There is an effect that can be done.

According to the system and method for treating dyeing wastewater and high-concentration wastewater according to the present invention, the effect that can easily remove difficult-to-decomposable substances or chromaticity contained in dyeing wastewater or high-concentration wastewater by OH radicals generated during electrolysis there is

1 is a schematic schematic diagram for explaining a system for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

Figures 2a to 2c is a view for explaining the primary and secondary electrolysis apparatus applied to the system for the treatment of dyeing wastewater and high concentration wastewater according to an embodiment of the present invention, Figure 2a is a front view, Figure 2b is A front cross-sectional view showing the internal structure of the electrolysis body, FIG. 2C is a plan cross-sectional view.

Figure 3a is a view showing the front structure of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

Figure 3b is a view showing the planar structure of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

Figure 3c is a schematic configuration diagram for explaining the magnetic field generator of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

Figure 3d is a schematic perspective view for explaining the inner drum of the sludge reduction device of the system for the treatment of dyeing wastewater and high concentration wastewater according to an embodiment of the present invention;

Figure 3e is a schematic perspective view for explaining the external drum of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

3f is a schematic perspective view for explaining a treatment chamber of a sludge reduction device of a system for treating dyed wastewater and high-concentration wastewater according to an embodiment of the present invention;

Figure 3g is a view for explaining the operation of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention;

4 is a process diagram for explaining a method for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person skilled in the art from the general technology, and an action and effect thereof will be simplified or omitted. In addition, since the present invention is characterized by a system and a method for treating dyed wastewater and high-concentration wastewater, the related parts will be mainly illustrated and described, and the description of the remaining parts will be simplified or omitted.

1 is a schematic diagram for explaining a system for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention.

Referring to FIG. 1, the system for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention is characterized in that it is configured to effectively treat wastewater while minimizing the use of chemical agents. (1a), flow rate control tank (2), primary electrolysis device (3a), pressurized flotation tank (4), anoxic tank (5), anaerobic tank (6), contact aeration tank (7), membrane separation tank (8), 2 The primary electrolysis device 3b, the drainage tank 1b, and the sludge treatment unit 9 are provided as main components.

The above-mentioned main components are arranged so that flow treatment is possible, and except for some components, the detailed structures and shapes are well-known devices that are widely applied in sewage and wastewater treatment systems. It will be described in detail below with a focus on the components having .

The sediment/screen tank 1a is a component that removes solids contained in the inflowing wastewater, and has a conventional structure including a screen for removing materials with large particle sizes, such as sand and solids.

The flow rate adjustment tank 2 is a component that adjusts the flow rate of wastewater passing through the sedimentation/screen tank 1a, and may be composed of an open tank, etc., but in this embodiment, as shown in FIG. 2a, the first electrolysis device It consists of a sealed tank on which (3a) is mounted, and piping etc. are connected so that the wastewater treated by the anaerobic tank 5 may flow.

2a to 2c are views for explaining the primary and secondary electrolysis devices applied to the system for treating dyed wastewater and high-concentration wastewater according to an embodiment of the present invention, FIG. 2a is a front view, Figure 2b is a front sectional view showing the internal structure of the electrolysis body, Figure 2c is a plan sectional view.

Referring to FIGS. 2A to 2C , the primary electrolysis device 3a is a component that primarily performs an electrochemical treatment process of wastewater passing through the flow rate adjustment tank 2, By using the oxidizing power of OH radicals, contaminants, difficult-to-decompose substances, and chromaticity can be removed. Accordingly, facilities such as a neutralization tank, a reaction tank, and a coagulation tank, which were required to form flocs in the conventional wastewater treatment process, are unnecessary, and the conventional problems in which a large amount of chemicals such as a neutralizing agent and a coagulant must be input can be solved.

This, the primary electrolysis device (3a) is the electrolysis device frame 31, the electrolysis body 32, the stirrer 33, the electrolysis unit 34, the inlet line 35, and the discharge line (36) This is provided.

The electrolysis device frame 31 is formed by a transverse member and a vertical member to support the electrolysis body 32, and the transverse member and the vertical member are formed of a section steel material such as a square bar.

The electrolysis body 32 is formed in a hexahedral shape by a plate material so that an electrolysis chamber 32a in which wastewater is accommodated is provided, and is accommodated in the electrolysis body 32 from the outside as shown in FIG. 2a. A see-through window (32b) for monitoring is installed so that the electrolysis unit (34) and the stirrer (33) operating state can be checked.

The stirrer 33 is installed in the electrolysis body 32 and stirs the sludge that is deposited on the bottom of the electrolysis chamber 32a, floats and mixes the contaminants, difficult-to-decompose substances, and chromaticity by the electrolysis unit 34 by stirring. It is designed to enhance the removal efficiency. The agitator 33 is composed of a stirring motor 33a exposed to the outside, a stirring shaft 33b rotated by the stirring motor, and a blade 33c installed on the stirring shaft.

The electrolysis unit 34 is installed in the electrolysis chamber 32a and includes a plurality of positive electrode plates 34a and negative electrode plates 34b, and a positive electrode plate 34a and negative electrode plate 34b installed on the electrode plate mounting table 34c, negative electrode plate and positive electrode plate. A power supply unit (not shown) for supplying power for electrolysis is provided. Here, the positive electrode plate 34a and the negative electrode plate 34b may be formed of an iridium plate and an aluminum plate having different electrical conductivity, but is not limited thereto.

The inflow line 35 is configured to introduce wastewater into the electrolysis chamber 32a, and is composed of a pipe or a hose connected to the upper portion of the electrolysis body.

The discharge line 36 is configured for discharging the wastewater inside the electrolysis chamber 32a to the outside, and is connected to the lower portion of the electrolysis body 32 and converts the treated wastewater into the pressurized flotation tank 2, the second electrolysis In the case of the device, it is composed of pipes or hoses that supply to the drain tank).

And a discharge control valve 37 that opens and closes to control the discharge of wastewater is installed in the discharge line 36, and an overflow line 38 through which wastewater overflows from the electrolysis chamber 32a is discharged. this is installed The overflow line 38 has one end connected to the upper portion of the electrolysis body 32 and the other end connected to the discharge line 36 .

In addition, the primary electrolysis device 32a electrolyzes wastewater through a water level detection unit 39 such as a water level sensor installed to detect the level of wastewater flowing into the electrolysis chamber 32a, and an inlet line 35 . An electrolysis device control unit (not shown) that controls the driving of the pressure feeding pump based on the detection signal of the pressure feeding pump 35a and the water level detecting unit 39 and controlling the opening and closing of the discharge control valve 37 to the chamber 32a. city) is composed.

In addition, the primary electrolysis device 32a may inject a neutralizing agent or a coagulant such as caustic soda, slaked lime, etc. when it does not reach an appropriate level by measuring the treatment quality during the treatment of wastewater. To this end, the electrolysis body 32 is provided with an inlet (not shown) so that a neutralizing agent or a coagulant can be put in the upper part.

The reason for injecting the neutralizing agent or coagulant into the primary electrolysis device 32a as described above is that the stirrer 33 is provided therein, which has the advantage of rapidly performing the dissolution process of the chemical, and the pressurized flotation tank (4) This is to improve the efficiency of the pressurized flotation tank treatment step by being able to perform pretreatment of wastewater at the front end of the.

On the other hand, the pressure flotation tank 4 is a treatment tank for treating wastewater using microbubbles, and is provided with a bubble generator (not shown). The bubble generator may be configured without any particular limitation as long as it is a device capable of generating microbubbles. For example, the bubble generator may be composed of a pressurized tank for pressurizing air and water and a bubble nozzle (not shown) for ejecting the air and water from the pressurized tank into the pressurized flotation tank 4 .

The above-mentioned pressurized flotation tank (4) brings the bubbles generated from the bubble generator into contact with wastewater, and the agglomerated flocs attach to and float on the exiting air bubbles so that they are removed through a post-treatment process, and the supernatant is an anaerobic tank (5) will be transferred to

The anoxic tank 5 is a component that removes nitrogen and organic matter by denitrifying and oxidizing nitrate nitrogen using organic matter contained in the wastewater that has passed through the primary pressurized flotation tank 4, and this anoxic tank is a special high-pressure quantum field emission circuit. It is desirable to increase the removal efficiency of pollutants by adding a device for processing pollutants by adjusting the projected dose and waveform by matching the high frequency of the variable waveform.

The contact aeration tank 7 is a component that contacts and grows microorganisms with the organic matter remaining in the wastewater passing through the anaerobic tank 6 to form a microbial floe and returns a part of the sludge to the flow rate control tank 2, and is formed in the form of a tank. , a nozzle (not shown) to which a pipe directed to the membrane separation tank 8 is connected, and a nozzle (not shown) to which a first transport line 72 and a second transport line 73, which will be described later, are connected.

In addition, the contact aeration tank 7 is configured with a first return line 72 and a second return line 73 to selectively return the generated sludge to the flow rate adjustment tank 2 or the anoxic tank 5 .

The membrane separation tank 8 is a component that causes nitrification and microbial separation to occur by membrane separation of the wastewater passing through the contact aeration tank 7, and is configured similarly to a known membrane separation tank applied to a sewage and wastewater treatment system. .

In addition, the membrane separation tank 8 includes a third return line 82 and a fourth return line 83 to selectively return the sludge generated inside to the primary electrolysis device 3a or the anoxic tank 5 . has been

The secondary electrolyzer 32 is a component that secondary performs the electrochemical treatment process of wastewater passing through the membrane separation tank 8, and similarly to the above-described primary electrolyzer 3a, the electrolysis device frame (31), the electrolysis body 32, the stirrer 33, the electrolysis unit 34, the inlet line 35, the discharge line 36, the water level detection unit 39, the pressure pump (35a), the electrolysis A device control unit (not shown) is provided.

The drain tank 1b is a component through which wastewater flows through the secondary electrolysis device 3b and supernatant water is discharged, and is configured similarly to a known drain tank applied to a sewage and wastewater treatment system.

On the other hand, the sludge treatment unit 9 is a component through which the sludge of the contact aeration tank 7 is introduced, concentrated and removed, and is provided with a thickener 9a, a sludge reduction device 9b, and a dehydrator 9c.

The thickening tank 9a is configured to concentrate the sludge flowing in from the contact aeration tank 7 and return the supernatant water to the flow rate adjustment tank 2, and to return the supernatant water generated in the thickening tank 9a to the flow rate adjustment tank 2 Five conveyance lines 92 are configured.

The dehydrator 9c is a component that dehydrates the moisture of the sludge discharged from the sludge reduction device 9b and separates the solid-liquid, and a known dehydrator used for dewatering the sludge in the sewage and wastewater treatment system is selected according to the capacity. do.

On the other hand, the above-described first conveying line to the fifth half-in line (72, 73, 82, 83, 92) is composed of a pipe or a hose, an on/off valve (not shown) for controlling the flow, and a pump for pressure feeding (not shown). ) can be installed.

3A is a view showing the front structure of a sludge reduction device of a system for treating dyed wastewater and high-concentration wastewater according to an embodiment of the present invention, FIG. 3B is a dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention As a drawing showing the planar structure of the sludge reduction device of the system for treatment, the main components are simplified to help understanding, and some components are briefly illustrated in cross-sectional shape.

3A and 3B, the sludge reduction device 9b is a component that reduces the weight by rotating the sludge discharged from the thickening tank 9a at high speed, and includes a base frame 91, a drive shaft 92, a drum 93, A drum driving means (94), a processing chamber (95) and a plasma generating device (96) are provided.

The base frame 91 is composed of a frame structure of a substantially hexahedral shape by a plurality of vertical members 911 spaced apart and installed in the longitudinal direction, and a plurality of transverse members 912 connected to the vertical members 911. . Here, the vertical member 911 and the transverse member 912 are made of a plate material or a section steel such as a square bar.

In addition, the base frame 91 has a rolling wheel 913 installed at the lower part for free movement, and an upper plate (not shown) may be installed on the upper part.

The drive shaft 92 is a component rotatably installed on the base frame 91 to rotate the drum 93, and a first drive shaft 921 connected to one side of the inner drum 931 to be described later, the inner drum ( It is comprised by the 2nd drive shaft 922 connected to the other side of 931.

The first drive shaft 921 is formed with a sludge flow path therein and is configured as a hollow pipe to supply sludge to the inside of the inner drum 931 , and the second drive shaft 922 is configured as a round bar having a clogged structure.

The hollow pipe is characterized in that the spiral moving groove 9212 is recessed into the inner surface of the pipe body in a spiral shape. When the spiral movement groove 9212 is formed inside the first drive shaft 921 as described above, when the sludge is pressurized by a pressure pump (not shown), which will be described later, it turns and swirls when ejected to the inner drum 931 . Since it is sprayed while generating

In addition to the above-described structure, the drive shaft 92 may be changed to a form in which the second drive shaft 922 is a hollow pipe and the first drive shaft 921 is a round bar according to the amount or shape of sludge, or the first and second drive shafts It can also be configured by changing the method of configuring all of them with a hollow pipe.

Figure 3c is a schematic configuration diagram for explaining the magnetic field generator of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention.

3A and 3C, in the sludge reduction device according to the present invention, the magnetic field generating unit 97 is configured on the first driving shaft 921, which is the part into which the sludge is introduced.

The magnetic field generating unit 97 is installed outside the hollow pipe to apply a magnetic force to the sludge moved to the sludge movement path of the first drive shaft 921 . In addition, the magnetic field generating unit 97 may be configured by installing only a magnetic member such as a permanent magnet, but in this embodiment, electrical energy using a physical force such as vibration applied to the first drive shaft 921 when the sludge is pumped It is characterized in that it is composed of an electromotive force generating unit so that it can be used by applying it to the plasma generating unit after generating electricity.

To this end, the magnetic field generating unit 97 includes a plurality of magnetic members 971 installed around the outer surface of the hollow pipe (the ninth first driving shaft), and an induction coil disposed in contact with the magnetic member 971. An electromotive force generating unit including (972). And, the electromotive force generating unit 972 may be configured with a circuit unit for providing the generated power to the plasma generating unit (not shown). Here, the circuit unit may be composed of a known circuit that rectifies the generated power output from the electromotive force generating unit and changes to a predetermined rated power.

Figure 3d is a schematic perspective view for explaining the inner drum of the sludge reduction device of the system for the treatment of dyeing wastewater and high concentration wastewater according to an embodiment of the present invention, Figure 3e is a dyeing wastewater and high concentration according to an embodiment of the present invention It is a schematic perspective view for explaining the external drum of the sludge reduction device of the system for wastewater treatment.

3A to 3E, the drum 93 is a tubular body having a plurality of perforations, which is rotatably connected to the drive shaft 92 and rotates at a high speed while dismantling the sludge floc and destroying the cell membrane. Actual sludge reduction is performed by removing water, capillary-bonded water, and pore water.

And, the drum 93 can be configured as one or three or more to perform the sludge reduction action in multiple stages, but in this embodiment, two drums are sequentially arranged inside and outside in the form of an inner cylinder and an outer cylinder. .

More specifically, the drum 93 is rotated by connecting a first driving shaft 921 and a second driving shaft 922 to one side and the other side, and an inner drum 931 formed by perforating a plurality of perforations in a plate material, and the inside It is arranged to surround the outside of the drum 931 and consists of an external drum 932 formed by perforating a plurality of perforations in a plate material.

The outer drum 932 includes an outer drum body 9321 disposed to surround the inner drum 931 , and an outer drum rotating shaft extending from one side and the other side of the outer drum body 9321 to be rotatably disposed on the driving shaft 92 . (9322).

The external drum rotating shaft 9322 is composed of a first external drum rotating shaft 9322a rotatably disposed on the first driving shaft 921 and a second external drum rotating shaft 9322b disposed outside of the second driving shaft 922. have. Here, the first and second external drum rotation shafts 9322a and 322b are formed in a pipe shape, and the second external drum rotation shaft ( 9322b) is formed to have a larger diameter.

In addition, the inner drum 931 and the outer drum 932 are formed to have a substantially cylindrical shape, and a plurality of perforations are perforated on the surface thereof, and a plurality of concavo-convex portions (not shown) are formed to increase the sludge reduction effect. It is preferable to be

On the other hand, the drum driving means 94 is a component connected to generate and apply a rotational force for rotating the drum, and an internal drum driving means 941 for generating and applying a rotational force to the driving shaft 92 for rotation of the inner drum 931 . ) and an external drum driving means 942 connected to rotate the external drum 932 .

The internal drum driving means 941 is an internal drum driving motor 9411 installed on the base frame 91, a driving pulley 9412 connected to the motor shaft of the internal drum driving motor 9411, and one side of the driving pulley 9412 The belt 9413 to be connected, the other side of the belt 9413 is connected, and an electric pulley 9414 connected to the first drive shaft 921 is provided.

The external drum driving means 942 is an external drum driving motor 9421 installed on the base frame 91, a driving pulley 9422 connected to the motor shaft of the external drum driving motor 9421, and one side of the driving pulley 9422. A belt 9423 to which this is connected, and an electric pulley 9424 to which the other side of the belt 9423 is connected and connected to the first external drum rotating shaft 9322a are provided.

The above-described inner drum driving means 941 and external drum driving means 942 rotate the inner drum 931 and the outer drum 932 so as to increase the weight loss action such as sludge floc dissolution or cell membrane destruction. It is important to configure them so that they are in opposite directions. That is, when the inner drum driving means 941 rotates the inner drum 931 clockwise, the outer drum driving means 942 rotates the outer drum 932 counterclockwise.

And the inner drum driving means 941 and the external drum driving means 942 are the driving pulleys 9412 and 422 and the electric pulleys 9414 and 424 as power transmission means and a belt composed of the belts 9413,423 connected thereto. Although it is configured as a power transmission method, it may also be configured as a gear power transmission method (not shown) in which power is transmitted through meshing of gears. In addition, the inner drum driving motor 9411 and the external drum driving motor 9421 are configured as motors having a speed reducer to rotate the inner drum 931 and the outer drum 932 at 16,000 rpm.

3F is a schematic perspective view illustrating a treatment chamber of a sludge reduction device of a system for treating dyed wastewater and high-concentration wastewater according to an embodiment of the present invention.

Referring to Figure 3f, the processing chamber 95 is formed to surround the outside of the drum 93 to be accommodated and installed on the base frame 91, the chamber body 951 of the hexahedral shape of which the upper and lower portions are concave, the A pipe-shaped drain line 952 installed at the lower outlet of the chamber body 951 is provided. In addition, the processing chamber 95 has a shaft insertion hole 953 formed on the side thereof so that the driving shaft 92 and the external drum rotating shaft 9322 are rotatably inserted and installed.

On the other hand, the plasma generator 96 includes a plurality of plasma radiation electrodes 961 installed in the processing chamber 95, and a plasma generator (not shown) for applying a high voltage to the plasma radiation electrodes 961 .

The plasma radiation electrode 961 is composed of a plurality of anode plasma radiation electrodes and a plurality of cathode plasma radiation electrodes, and the anode and cathode plasma radiation electrodes are installed in a socket to have a certain distance from each other and are coupled to the processing chamber 95. have. Here, the positive plasma radiation electrodes are electrically connected to the positive terminal of the plasma generator via a positive power line (not shown), and the negative plasma radiation electrodes are electrically connected to the negative terminal of the plasma generator via a negative power line (not shown). is connected with

The above-described plasma generating unit (not shown) can be applied without any particular limitation as long as it has excellent sterilization properties of harmful bacteria contained in sewage and wastewater. For example, the plasma generating unit may be configured as a low-temperature plasma driving unit. The low-temperature plasma driving unit consists of a power supply unit (not shown) for supplying power, and a driving circuit unit (not shown) that is electrically connected to the power supply unit and applies a predetermined voltage and current to the anode and cathode plasma radiation electrodes. It is configured by applying a common low-temperature plasma driving unit used in the field of generators.

On the other hand, the sludge reduction device according to the present invention is provided with a rotation support means 98 to rotatably support the drive shaft 92 and the external drum rotation shaft 9322.

The rotation support means 98 is a component installed on the base frame 91 , and includes a first bearing block 981 , a second bearing block 982 , a third bearing block 983 , and a fourth bearing block 984 . is composed of Here, the first to fourth bearing blocks 981, 982, 983, and 984 are integrally formed with a fastening bracket that is bolted to the to-be-installed part at the lower part of the housing into which the bearing is inserted, which is commonly referred to as a pillow block. .

The first bearing block 981 is installed on the base frame 91 so that the bearing is connected to the first drive shaft 921 , and the second bearing block 982 is the base frame ( 91) is installed.

The third bearing block 983 is installed on the base frame so that the bearing is connected to one side of the first external drum rotating shaft 9322a, and the fourth bearing block 984 is the bearing connected to the second external drum rotating shaft 9322b. It is installed on the base frame as much as possible.

On the other hand, although not specifically shown in the drawing, the sludge reduction device according to the present invention includes a pressure pump (not shown) for pumping sludge into the inner drum 931 .

The pressure pump is composed of a sludge pump to enable easy pumping even if the liquid contains solid materials such as sludge. A discharge pipe (not shown) for For example, the discharge pipe (not shown) may be configured in such a way that the high-pressure hose is hermetically connected to the inlet of the first driving shaft 921 .

On the other hand, non-explained reference numeral 9 of FIG. 3A is a control box in which a control unit (not shown) for controlling the driving of the drum driving means 94 and the plasma generating device 96 is mounted therein. In addition, an input unit such as a power button and an on/off button, a display for displaying an operating state, etc. may be installed in the control box 99 .

Hereinafter, the operation of the sludge reduction device of the system for treating dyed wastewater and high-concentration wastewater according to an embodiment of the present invention will be briefly described.

The accompanying drawings, Figure 3g is a view for explaining the operation of the sludge reduction device of the system for the treatment of dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention. is a floor plan.

Referring to FIG. 3G, in the sludge reduction device according to the present invention, the sludge is introduced into the first drive shaft 921 by the pumping action of the pressure pump (not shown), and the inner drum 931 and the outer drum 932 are formed. A weight reduction action of the sludge discharged to the treatment chamber 95 via the gas flow is performed.

At this time, the inner drum 931 rotates while the first drive shaft 921 is rotated as the rotational force of the inner drum driving motor 9411 is transmitted in the order of the drive pulley 9412 , the belt 9413 , and the electric pulley 9414 . carry out And, as the rotational force of the external drum driving motor 9421 is transmitted to the external drum 932 in the order of the driving pulley 9422, the belt 9423, and the electric pulley 9424, the first external drum rotating shaft 9322a is rotated while the external drum 932 is rotated. perform rotational motion.

As described above, the sludge pumped by the pressure pump (not shown) rotates along the spiral movement groove 9212 of the first drive shaft 921 and is ejected to the inner drum 931 while generating a vortex. It can increase the sludge reduction effect.

In addition, as the sludge flowing into the internal sludge passage of the first drive shaft 921 passes through the magnetic field generator 97, the intermolecular and ionic bonds are weakened by the magnetic force of the magnetic member 971, so the subsequent sludge flocs ( floc) can increase the effect of dismantling or destroying cell membranes, thereby increasing the sludge reduction effect.

On the other hand, the sludge ejected into the inner drum through the first driving shaft 921 collides with the uneven portion of the inner wall of the inner drum 931 to dismantle the sludge floc or destroy the cell membrane, and the inner drum is perforated. It is discharged to the external drum 932 through the secondary collision, and then is discharged to the processing chamber 95 through the external drum 932 . At this time, the inner drum 931 and the outer drum 932 not only rotate at a high speed at 16,000 rpm, respectively, but also rotate in opposite directions to each other, so that the sludge floc dismantling or cell membrane destruction action is effectively performed.

Subsequently, harmful bacteria contained in the sludge flowing into the treatment chamber 95 are sterilized and removed through the plasma sterilization process by the plasma generator 96 . That is, as is well known, according to the operation of the plasma generating unit, a low voltage discharge phenomenon occurs between the positive and negative plasma radiation electrodes 961 to generate hydroxyl groups, and harmful bacteria are sterilized by the strong oxidation of the hydroxyl groups. At this time, the sterilization can be performed more efficiently by adjusting the interval or quantity between the positive and negative plasma radiation electrodes 961 according to the amount or type of the introduced sludge.

The sludge, which has undergone the sludge reduction process as described above, is discharged to the outside through the pipe-shaped drain line 952 installed at the lower outlet of the chamber body 951, is transferred to the dehydrator 9c, and is subjected to a predetermined treatment process.

Hereinafter, a method for treating dyeing wastewater and high-concentration wastewater of the system for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention will be briefly described.

4 is a process diagram for explaining a method for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention.

4, the method for treating dyeing wastewater and high-concentration wastewater according to an embodiment of the present invention includes a screen tank treatment step, a flow rate control tank treatment step, a primary electrolysis step, a pressure flotation tank treatment step, an anaerobic tank treatment step, The anaerobic tank treatment step, the contact aeration tank treatment step, the membrane separation tank treatment step, the secondary electrolysis step, the drainage tank treatment step, and the sludge treatment step are sequentially performed.

The screen bath treatment step is a step of removing the solids contained in the wastewater introduced by the sedimentation/screen bath 1a, and the residence time is 1 minute or more to remove large particle size materials such as sand and solid materials, but wastewater The oil contained in the sediment is separated by the specific gravity difference between water and oil in the sedimentation/screen tank. In this screen bath treatment step, it is possible to protect a pump, etc. provided in a subsequent treatment facility from foreign substances by separating solids or light contaminants with a large specific gravity.

The flow rate adjustment tank treatment step is a step in which the flow rate of wastewater passing through the sedimentation/screen tank 1a is adjusted in the flow rate adjustment tank 2, and since the incoming wastewater is not constant, when the flow rate is small, the flow rate and wastewater treatment quality are equalized The wastewater is supplied to the next step after confinement and storage until a certain amount is reached.

The primary electrolysis step is to first remove contaminants and chromaticity by using the oxidizing power of OH radicals generated through the electrochemical treatment process by the primary electrolysis device (3a) of wastewater passing through the flow control tank (2). As a step, the mechanism of generation of OH radicals is a well-known technique, and thus a detailed description thereof will be omitted.

This primary electrolysis step reduces the concentration of organic matter including COD by oxidation and reduction reactions by chlorine and hydrogen gas, increases the flotation property of the sludge by the generated gas, and forms fine bubbles, so the subsequent pressurized flotation tank performance can be improved. In particular, the primary electrolysis step can omit facilities such as a reaction tank, a neutralization tank, and a coagulation tank, which are essentially required as a pretreatment process of the pressure flotation tank treatment step in the conventional wastewater treatment system, and the coagulant and neutralizer used in the conventional pretreatment It is possible to reduce the amount of chemicals used, such as reducing costs, as well as reducing the amount of sludge generated due to excessive use of chemicals, thereby reducing the processing load.

The pressure flotation tank treatment step is a step of removing the wastewater introduced into the pressure flotation tank 4 via the primary electrolysis device 3a by contacting the microbubbles generated by the bubble generator so that the flocs are agglomerated and floated. to be.

The anoxic tank treatment step is a step of removing nitrogen and organic matter by denitrifying the nitrate nitrogen contained in the wastewater while retaining the wastewater passing through the pressurized flotation tank in the anoxic tank 5 for 1 to 9 hours. The residence time is preferably in the range of 3 to 9 hours. Compared to the range of 1 to 3 hours, which is the residence time of the existing anaerobic tank, the residence time is maintained about 3 times or more, thereby increasing the self-extinguishing of wastewater and removing excess sludge. occurrence can be reduced.

On the other hand, it is preferable to increase the removal efficiency of pollutants by adding a device for processing pollutants by matching the high frequency of the variable waveform to the special high-pressure quantum field emission circuit in the anoxic tank 5 and adjusting the projected dose and waveform. When the quantum field of an appropriate wave is injected while stirring the difficult-to-decompose pollutants contained in various types of sewage and wastewater, the molecules of the polluting element dissociate with anions and cations in Electro Equilibrium. Dissociated and hydrated organic compounds or heavy metal complex ions are separated from the hydration layer and cause a Gas Like Reaction in water.

In this state, polar organic molecules leave the hydration layer by mixing by an external stirrer in water, so that organic substances, complex ions, and negative ions in water are oxidized and decomposed in a short time, just as volatile organic substances (VOCs) in the air are oxidized and decomposed in a short time. and electrons are activated to a higher energy state to promote dissociation and ionization of contaminants. Insoluble phosphorus (Phosphorus) in the form of organic matter that is difficult to decompose is converted into soluble sludge by inorganicizing it in the form of Ortho, which makes it easier to process. In addition, nitrogen (Nitrogen) is also converted into organic nitrogen (Proteins), nitrified, and then converted into nitrogen gas and discharged.

The anaerobic tank treatment step is an anaerobic tank treatment step in which residual denitrification and phosphorus release are made using the remaining organic matter while the wastewater passing through the anaerobic tank 5 is stayed in the anaerobic tank 6 for 4 to 8 hours.

The contact aeration tank treatment step is a step of forming microbial flocs by contacting and growing microorganisms with the remaining organic matter while aerating the wastewater that has passed through the anaerobic tank 6 in the contact aeration tank 7, in which living or dead microorganisms are suspended Microorganisms in activated sludge act to decompose organic matter through metabolism in an aerobic environment. The role of the contact aeration tank in the activated sludge method using this is that microorganisms and organic matter in the inflow wastewater come into contact with the microorganisms to grow and form microbial flocs. it works And it is desirable to design the residence time in the contact aeration tank to be 3 to 14 hours.

And, in the contact aeration tank treatment step, a circulation process of selectively returning a part of the sludge generated in the contact aeration tank 7 to the flow rate control tank 2 or the anoxic tank 5 is performed. This circulation process increases the residence time of the sludge in the treatment process by returning a part of the sludge to the flow control tank 2 or the anoxic tank 5 to enable the sludge circulation generated by the wastewater, thereby self-extinguishing the sludge. can improve processing efficiency.

The membrane separation tank treatment step is a step for nitrification and microbial separation of the wastewater passing through the contact aeration tank 7 to occur in the membrane separation tank 8. In this step, nitrite is used as an intermediate medium to continuously ammonium is oxidized to nitrite, and at the same time, the remaining BOD components consumed in the anoxic tank process are decomposed by aerobic microorganisms.

Then, a circulation process is performed in which the sludge generated in the membrane separation tank 7 is selectively returned to the primary electrolysis device 3a or the anoxic tank 5 depending on the state. This circulation process increases the residence time of the sludge in the treatment process by returning a part of the sludge to the primary electrolysis device 3a or the anoxic tank 5 to enable the sludge circulation generated by the wastewater, thereby increasing the sludge Treatment efficiency can be improved by self-extinguishing.

The secondary electrolysis step is to use the oxidizing power of OH radicals to secondarily remove contaminants and chromaticity through the electrochemical treatment process of the wastewater passing through the membrane separation tank (8) by the secondary electrolysis device (3b). As a step to perform, as the above-mentioned primary electrolysis step is performed once again in the post process, the purification efficiency of wastewater can be improved as well as the amount of chemicals such as flocculants and neutralizers can be reduced, thereby reducing costs and excessive chemical It is possible to reduce the amount of sludge generated by the use of chemicals.

The wastewater tank treatment step is a step of receiving the wastewater passing through the secondary electrolysis device 3b in the drain tank 1b and discharging the supernatant water.

On the other hand, the sludge treatment step is performed by using the sludge treatment unit 9 for the sludge generated from the contact aeration tank 7, and consists of a thickener process, a sludge reduction process, and a dehydrator process to concentrate, reduce and remove the sludge.

In the thickening tank process, when the sludge generated by the contact aeration tank treatment step flows into the thickening tank 9a, it is concentrated through a sedimentation process, and the settled sludge is transferred to the sludge reduction device 9b, and the supernatant is transferred to the flow rate control tank 2 It is the process of returning and reprocessing.

The sludge reduction process is a process of reducing sludge by the action of the sludge reduction device 9b described above, and the dehydrator process is a dehydration process performed by the dehydrator 9c. The sludge cake finally discharged is taken out and buried, It undergoes post-processing such as incineration.

As described above, in the method for treating dyeing wastewater and high concentration wastewater according to an embodiment of the present invention, the conciseness, simplification and facility investment cost of the treatment system are reduced by applying the primary electrolysis step and the secondary electrolysis step instead of the pretreatment process. It was confirmed experimentally that the amount of chemicals such as neutralizers and coagulants can be reduced to about 50%, and this has the advantage of reducing the amount of sludge generated.

Although the configuration and operation of the system and method for dyeing wastewater and high-concentration wastewater treatment according to an embodiment of the present invention described above have been described, these are exemplary and those of ordinary skill in the art can relate to the technical spirit of the present invention It will be understood that substitution and modification of some of the above-described embodiments are possible without departing from the scope of the present invention.

Therefore, it should be understood that the protection scope of the present invention extends to the invention described in the claims and their equivalents.

The system and method for treating dyeing wastewater and high-concentration wastewater according to the present invention is a technology that can simplify and simplify wastewater facilities and effectively treat wastewater while minimizing the use of chemicals, such as dyeing wastewater, sewage, high-concentration wastewater, etc. It can be used for various wastewater treatment such as

Claims (9)

1. In a system for the treatment of dyeing wastewater and high-concentration wastewater

   a sedimentation/screen tank for removing solids contained in the inflowing wastewater;

   a flow rate adjustment tank for adjusting the flow rate of wastewater passing through the sediment/screen tank;

   a primary electrolysis device that primarily performs an electrochemical treatment process of wastewater passing through the flow control tank;

   a pressurized flotation tank for contacting the bubbles generated by the bubble generator with wastewater passing through the primary electrolysis device so that the flocs are agglomerated and floated;

   an anoxic tank for removing nitrogen and organic matter by denitrifying nitrate nitrogen using organic matter contained in the wastewater passed through the primary electrolysis device;

   an anaerobic tank to allow residual denitrification and phosphorus release using organic matter remaining in wastewater passing through the anaerobic tank;

   a contact aeration tank configured to contact and grow microorganisms with organic matter remaining in the wastewater passing through the anaerobic tank to form microbial flocs and return a portion of the sludge to the flow rate control tank;

   a membrane separation tank for nitrification and microbial separation by membrane separation of the wastewater passing through the contact aeration tank;

   a secondary electrolysis device for performing an electrochemical treatment process of wastewater passing through the membrane separation tank;

   a drainage tank in which wastewater passing through the secondary electrolysis device is introduced and supernatant water is discharged; and

   A system for treating dyed wastewater and high-concentration wastewater, comprising a; a sludge treatment unit in which the sludge of the contact aeration tank is introduced and concentrated and removed.
2. The method of claim 1,

   The sludge treatment unit,

   a thickening tank configured to concentrate the sludge flowing in from the contact aeration tank and return the supernatant to the flow rate control tank;

   a sludge reduction device for reducing the weight by rotating the sludge discharged from the thickener at high speed; and

   A system for treating dyed wastewater and high-concentration wastewater comprising a;
3. 3. The method of claim 2,

   A first return line and a second return line are configured to selectively return a portion of the sludge generated in the contact aeration tank to the flow rate adjustment tank or the anoxic tank,

   A third return line and a fourth return line are configured to selectively return the sludge generated in the membrane separation tank to the primary electrolysis device or the anaerobic tank,

   A system for treating dyeing wastewater and high-concentration wastewater, characterized in that a fifth return line is configured to return the supernatant water generated in the concentration tank to the flow rate adjustment tank.
4. 3. The method of claim 2,

   The primary electrolysis device and the secondary electrolysis device,

   an electrolysis body provided with an electrolysis chamber in which wastewater is introduced;

   a stirrer installed in the electrolysis body;

   an electrolysis unit installed in the electrolysis chamber and having a plurality of positive and negative electrode plates and a pole plate mounting table on which the positive and negative plates are installed, and a power supply unit for supplying power for electrolysis to the negative electrode and positive plate;

   an inlet line connected to the electrolysis body;

   a discharge line connected to the electrolysis body and provided with a discharge control valve;

   a water level sensing unit installed to detect the level of wastewater flowing into the electrolysis chamber;

   a pressure pump for pumping wastewater to the electrolysis chamber through the inlet line; and

   The system for treating dyed wastewater and high-concentration wastewater comprising a;
5. 3. The method of claim 2,

   The sludge reduction device,

   a drive shaft rotatably installed on the base frame;

   a drum rotatably connected to the drive shaft and having a plurality of perforations;

   a drum driving means connected to generate and apply a rotational force for rotating the drum;

   a processing chamber disposed to surround the outside of the drum and formed with an outlet; and

   A system for treating dyed wastewater and high-concentration wastewater, comprising a plurality of plasma radiation electrodes installed in the treatment chamber, and a plasma generator having a plasma generator for applying a high voltage to the plasma radiation electrodes.
6. 6. The method of claim 5,

   The drum is installed on the drive shaft and rotates and includes an inner drum having a plurality of perforations, and an outer drum arranged to surround the outside of the inner drum and having a plurality of perforations,

   The drum driving means includes an internal drum driving means connected to generate and apply a rotational force to the drive shaft, and an external drum driving means connected to rotate the external drum. system.
7. 7. The method of claim 6,

   The drive shaft includes a first drive shaft and a second drive shaft connected to one side and the other side of the inner drum, and at least one of the first drive shaft and the second drive shaft has a sludge movement path formed therein, so that the inner drum It is composed of a hollow pipe to supply sludge to the furnace,

   A system for treating dyed wastewater and high-concentration wastewater, characterized in that it includes a magnetic field generator installed to apply a magnetic force to the sludge moving outside of the hollow pipe.
8. The method for treating dyeing wastewater and high concentration wastewater using the system for treating dyeing wastewater and high concentration wastewater according to any one of claims 1 to 7,

   a screen bath treatment step of removing the solids contained in the wastewater introduced by the sedimentation/screen bath;

   a flow rate adjustment tank processing step of adjusting the flow rate of wastewater passing through the sediment/screen tank in the flow rate adjustment tank;

   a primary electrolysis step of primarily removing contaminants and chromaticity by using the oxidizing power of OH radicals through the electrochemical treatment process of the wastewater passing through the flow control tank;

   a pressurized flotation tank treatment step of contacting the wastewater introduced into the pressurized flotation tank via the primary electrolysis device with the bubbles generated by the bubble generator to agglomerate and float the flocs;

   an anoxic tank treatment step of removing nitrogen and organic matter by denitrifying nitrate nitrogen using organic matter contained in wastewater while retaining the wastewater passing through the primary electrolysis device in the anaerobic tank for 1 to 9 hours;

   an anaerobic tank treatment step of maintaining the wastewater passing through the anaerobic tank in the anaerobic tank for 4 to 8 hours and using the remaining organic matter to perform residual denitrification and phosphorus release;

   a contact aeration tank treatment step of forming microbial flocs by contacting and growing microorganisms with organic matter remaining while aeration of wastewater passing through the anaerobic tank in the contact aeration tank;

   a membrane separation tank treatment step of nitrifying and separating microorganisms from the wastewater passing through the contact aeration tank in the membrane separation tank;

   A secondary electrolysis step of performing a secondary electrolysis step of removing contaminants and chromaticity by using the oxidizing power of OH radicals through the electrochemical treatment process by the secondary electrolysis device of the wastewater passing through the membrane separation tank;

   a sump treatment step of receiving the wastewater passing through the secondary electrolysis device in the sump and discharging the supernatant; and

   and a sludge treatment step of concentrating, reducing, and removing the sludge generated from the contact aeration tank using the sludge treatment unit.
9. 9. The method of claim 8,

   The contact aeration tank treatment step includes a process of selectively returning a part of the sludge generated in the contact aeration tank to the flow rate control tank or the anoxic tank,

   The membrane separation tank treatment step includes a process of selectively returning a portion of the sludge generated in the membrane separation tank to the primary electrolysis device or the anoxic tank,

   The sludge treatment step includes a thickening tank process for concentrating the sludge generated by the contact aeration tank treatment step through a settling process, a sludge reduction process for physically reducing the sludge that has undergone the concentration process, and dewatering the sludge that has undergone the sludge reduction process. A method for treating dyeing wastewater and high-concentration wastewater, characterized in that it comprises a dehydration process.

Images