KR100364176B1 - Electrolytic cylinder and sewage/waste water treatment system and method using electrolytic cylinder - Google Patents

Abstract

The present invention relates to an electrolytic cylinder and a wastewater treatment apparatus and method using the same, and in particular, the present invention is provided with an inlet for introducing wastewater into one side, and an outlet for discharging the treated water to the other side; A central electrode tube which is inserted into and fixed to the inner tube at a predetermined interval inside the outer tube and is connected to a power terminal so that power of one pole is applied; And a power supply terminal inserted into and fixed to the inside of the central electrode tube at a predetermined interval, and for supplying power of the other electrode opposite to the electrode applied to the central electrode tube to electrolyze the waste water in cooperation with the central electrode tube. It consists of an internal electrode tube to be connected. Therefore, according to the present invention, it is possible to minimize the sludge discharged by maximizing the digestion of the reactant electrolytes generated in the electrolytic reaction and to remove the air pollutant by recycling the active gases as the air pollutant with the oxidation catalyst.

Description

Electrolytic cylinder and wastewater treatment apparatus and method using same {Electrolytic cylinder and sewage / waste water treatment system and method using electrolytic cylinder}

The present invention relates to an electrolytic cylinder and a wastewater treatment apparatus and method using the same, and more particularly, to a gas-liquid mixture (ozone gas, air, treated water (such as wastewater or primary treated water), etc.) introduced by a positive pressure pump. Oxidative decomposition or reduction decomposition by electrolytic reaction, and the brush is attached to the inner electrode tube and the middle electrode tube, the three overlapping tube variable to wash the foreign matter attached to the electrode wall of the inner electrode tube and the middle electrode tube as the inner electrode tube rotates The wastewater treatment apparatus using an electrolytic cylinder which purifies the treated water by forcibly contacting ions, hydroxides and bubbled electrolytic gases electrolytically reacted in the replaceable electrolytic cylinder and the electrolytic cylinder through a reaction tube to purify the treated water. And to a method.

Human survival and activities require various resources, and as a result, waste is inevitably emitted, which causes air pollution, water pollution, soil pollution, and environmental pollution such as noise, vibration, and odor. In particular, water pollution refers to wastewater in which any foreign substance is introduced into the water and changes its composition and condition, making it impossible to use water as it is. Water pollution in rivers, lakes, oceans, and coasts is a major threat to human health. Is giving.

Water pollutants can be roughly classified as toxic and organic matter. Toxic substances include organic chlorine pesticides such as DDT and BHC, organophosphorus, mercury, cadmium, lead, chromium, and other heavy metal compounds (e.g. PCBs, cyanide, phenols, arsenic, etc.). Or manure, sewage, agricultural and livestock waste, and food plant wastewater excreted during metabolic processes in living organisms. Organic wastewater causes water pollution when the river or lake exceeds its self-cleaning capacity.

Chemical purification is used to purify hardly degradable wastewater, such as chemical wastewater and waste leachate. In such chemical wastewater treatment systems, microbial treatment is not carried out and operation costs are high because the chemicals are dependent on chemicals. Because it is discharged to the outside with oxidizing agent, etc., there is the end of secondary pollution that destroys the river ecosystem.

In addition, to treat toxic and hardly degradable pollutants, the Fenton oxidation method that decomposes the hardly decomposable substances present in the wastewater by using the strong oxidizing power of the hydroxide (-OH) radical generated by the reaction of hydrogen peroxide and divalent iron ions. However, this method has a problem in that a large amount of sludge in the form of iron hydroxide due to the iron used as a catalyst of the reaction.

In addition, the photodegradation oxidation system using ultraviolet light and hydrogen peroxide (H ₂ O ₂ ), which has been put to practical use in developed countries such as the United States, has already been proven, but the disadvantages of continuously injecting chemicals (ie, hydrogen peroxide) and wastewater in Heavy metal ion components (eg, Cr ^{+ 2} , Co ^{+ 2} , Ni ^{+ 2} , etc.) contain disadvantages that cannot be removed. This photodegradation oxidation system is organic to wastewater containing 600 ppm of high concentration organic matter. As the removal rate is less than 80%, the treatment efficiency is lowered, and the ultraviolet ray is poorly permeable to the wastewater and the reaction rate is limited. Furthermore, photocatalytic oxidation systems using ultraviolet photocatalysts [UV / titanium dioxide (TiO ₂ )] have a very slow rate of formation of hydroxyl radicals, which still play a major role in decomposing toxic and hardly decomposable chemicals. Much research is needed. That is, the photocatalytic oxidation system increases the removal rate of organic matters up to 80-90%, but also requires a reaction time of 30 hours or more, and the penetration depth of the ultraviolet light to the wastewater is limited due to the added TiO ₂ oxidation catalyst. There was a closed end of the treatment efficiency.

In addition, as one of the methods for purifying wastewater, a method for purifying wastewater using electrolysis of water is used in a wastewater treatment apparatus. This electrolysis method generates 20 to 30 μm fine oxygen gas bubbles, 10 to 20 μm fine hydrogen gas bubbles, colloidal air by the electrolysis of water, and the floating material and the floating material in the waste water Impurities such as suspending substances become active at a rapid rate to cause redox reactions, and by this reaction, impurities are aggregated and combined to form flocs, and when the colloidal air is absorbed and adsorbed, flocs float, By separating and treating the floating flocs, the contaminants contained in the waste water can be efficiently removed. However, in the wastewater treatment apparatus using the conventional electrolysis method, all of the colloidal air rises and spreads as the colloidal air spreads from the electrode unit to the entire area of the electrolytic injury tank, so that it is difficult to sufficiently secure the lift and diffusion power of the colloidal air, Not only do not raise the impurities, there is a problem that the floating floc is redispersed in the treated water. In addition, the wastewater treatment apparatus using the conventional electrolysis method is a metal hydroxides or gases are generated and do not have sufficient effect in response to the wastewater, and is removed by sludge or scheme and the generated gases (eg, O ₃ , Cl, N ₂ , CO _2, etc.) are not oxidized, reduced or dissolved in wastewater, but are released into the atmosphere. In other words, the rapidly adsorbed and aggregated sludge causes soil pollutants, and the released gases cause air pollutants.

As described above, various treatment methods have been proposed for more efficiently treating wastewater, which is essential for industrial development, but have not yet reached a satisfactory level.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, the first object of the present invention is implemented as a replaceable inner electrode tube, the central electrode tube and the outer tube to protect the two tubes, the inner electrode pipe and various ionized gas generated by the power application electrode central portion e.g., O ^2-, ClO ^- (hypochlorous acid), HO ₂ (hydrogen dioxide), etc.], ozone (O _3), metal hydroxides (e.g., Fe ³ + + OH, Al ³ + + ³ OH), OH radical and the like to provide an electrolytic cylinder for the rapid purification of the gas-liquid mixture is introduced.

The second object of the present invention is to install a brush on the inner electrode tube and the middle electrode tube to wash the foreign matter attached to the electrode wall of the inner electrode tube and the middle electrode tube in accordance with the rotation of the inner electrode tube, it is possible to maximize the purification efficiency To provide an electrolytic cylinder.

The third object of the present invention is to oxidatively decompose or reduce decomposition by electrolytically reacting a gas-liquid mixture using an electrolytic cylinder, and to send a gas-liquid mixture passed through the electrolytic cylinder to a reaction tube to induce a strong chemical reaction by forced contact by positive pressure. Activation of oxidative decomposition, reductive decomposition and coagulation reactions, and the gas-liquid mixture passed through the reaction tube into the nozzle injection hole to promote the gas-liquid oxidation and oxygen dissolved effect, to minimize the sludge generated during the purification process to maximize the purification efficiency To provide a wastewater treatment apparatus and method using an electrolytic cylinder that can be made.

The fourth object of the present invention is that the sludge generated during the purification process is returned to the sump through a return pipe and mixed with the first treated water to re-react active gases (eg, metallic hydroxide ions) that are air pollutants with an oxidation catalyst. By providing a wastewater treatment apparatus and method using an electrolytic cylinder that can minimize the air pollution source and improve the reaction efficiency.

1 is a block diagram of an electrolytic cylinder according to the present invention,

2 is a view showing a coupling relationship with the reduction motor when the cleaning of the electrolytic cylinder according to the present invention,

3 is a block diagram of a wastewater treatment apparatus using an electrolytic cylinder according to the present invention,

4 is a flowchart illustrating the overall operation of the electrolytic cylinder and the wastewater treatment apparatus using the same according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

20, 342: middle electrode tube 30, 341: internal electrode tube

100: electrolytic cylinder 200: reduction motor

300: wastewater treatment device 310: sump

320: ionization gas generator 330: positive pressure pump

340: electrolytic cylinder 350: reaction tube

360: node injection pipe 370: sedimentation tank

380: separation collector 390: return pump

The present invention for achieving the above object is provided with an inlet for introducing waste water to one side, the outer tube is provided with a discharge port for processing the treated water to the other side; A central electrode tube which is inserted into and fixed to the inner tube at a predetermined interval inside the outer tube and is connected to a power terminal so that power of one pole is applied; And a power supply terminal inserted into and fixed to the inside of the central electrode tube at a predetermined interval, and for supplying power of the other electrode opposite to the electrode applied to the central electrode tube to electrolyze the waste water in cooperation with the central electrode tube. It is characterized by consisting of an inner electrode tube connected.

In addition, the present invention is a waste water treatment apparatus, comprising: a collecting tank for collecting waste water to be treated; A positive pressure pump for mixing the waste water flowing out of the sump and the ionizing gas flowing out of the ionization gas generator to generate a gas-liquid mixture, and transferring the gas-liquid mixture to a designated path; An electrolytic cylinder for oxidative decomposition, reductive decomposition, and agglomeration reaction by electrolytically reacting the gas-liquid mixture introduced through the positive pressure pump; A reaction tube for activating oxidative decomposition, reductive decomposition, and agglomeration reaction by forcibly contacting the electrolyzed gas-liquid mixture introduced through the electrolytic cylinder with the electrolyzed electrolytes in the electrolytic cylinder; And a settling tank separating the gas-liquid mixture into treated water and foam sludge to discharge the floating foam sludge and separating the treated water from the precipitated foam sludge and discharging it to the outside.

The present invention also provides a wastewater treatment method comprising the steps of: collecting wastewater to be treated; Gas-liquid mixing the waste water and the ionization gas; Electrolytic reaction of the gas-liquid mixture to produce an electrolyte, and oxidative decomposition, reduction decomposition, and coagulation treatment of the gas-liquid mixture using the electrolyte; Forcibly contacting the electrolyzed gas-liquid mixture with the electrolyzed electrolytes to activate oxidative decomposition, reductive decomposition, and agglomeration reactions; And separating the sprayed gas-liquid mixture into the foam sludge and the treated water to remove the floating foam sludge, and separating the treated water from the precipitated foam sludge and discharging it to the outside.

Hereinafter, preferred embodiments of the electrolytic cylinder and the wastewater treatment apparatus and method using the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an electrolytic cylinder 100 according to the present invention, the electrolytic cylinder 100 is implemented as a variable replacement type of three overlapping tube to solve the problem of oxidation precipitation in the general electrolytic method.

The electrolytic cylinder 100 has a cylindrical outer tube 10 which is open at both sides, and the lower end or one side of the outer tube 10 is closed by a cap 12. The cap 12 is installed to replace the intake port 14 so that waste water can be introduced, and in place of the upper or the other side of the outer tube 10 in communication with the inner side of the outer tube 10 and the electrolytic reaction An outlet 16 through which waste water can be discharged is also fixedly replaceable. On the other hand, it is preferable that tabs are inserted at both sides of the outer tube 10 so as to stably fix and maintain various components such as a middle electrode tube, an inner electrode tube, a packing, and the like, which will be described later. That is, the first tab 18a is inserted into the lower end or one side of the outer tube 10, and the second tab 18b is inserted into the upper or other side. Here, the outlet 16 described above is in communication with the second tab (18b), it is preferable that the spiral 19 is formed so that the packing can be coupled in a screwed manner as described below.

Inside the outer tube 10, the central electrode tube 20 is installed to have the same central axis as that of the outer tube 10. The middle electrode tube 20 is preferably formed of titanium in order to electrolyze the waste water as described below. The power supply terminal 22 is connected to the central electrode tube 20 so that, for example, a positive power may be supplied. Here, the power supply terminal 22 connects the power supply terminal 22 to the middle electrode tube 20 as well as the middle electrode tube 20 is stable inside the outer tube 10 and the second tab 18b. It is preferable to be connected to the central electrode tube 20 by the connecting piece 24 so that it can be fixed and maintained. The connecting piece 24 passes through the outer tube 10 and the second tab 18b, and the gas-liquid mixture can freely flow between the outer tube 10 or the second tab 18b and the central electrode tube 20. It is preferable that it is formed in such a way as to surround a part of the central electrode tube 20. In addition, it is preferable that the nut 24b is releasably provided at the end 24a of the connecting piece 24 so that the power supply terminal 22 can be easily detached. On the other hand, it is preferable that the fixing piece 26 is inserted between one side or the lower end of the middle electrode tube 20 and the first tab 18a in order to more stably fix and hold the middle electrode tube 20. . The fixing piece 26 is preferably formed in the form of a discontinuous ring or a material such as a net so that fluid such as waste water can easily flow between the first tab 18a and the central electrode tube 22. .

In addition, the inner electrode tube 30 is provided inside the middle electrode tube 20 while maintaining a predetermined interval. The central axis of the inner electrode tube 30 is preferably arranged to coincide with the central axis of the middle electrode tube 20, and the material is preferably formed of platinum. It is preferable that the power supply terminal 32 is connected to the end 30a of the inner electrode tube 30, for example, in order to apply the power of the negative electrode (-) to the inner electrode tube 30. The power supply terminal 32 is idlely inserted into the end portion 30a of the internal electrode tube 30 so that the internal electrode tube 30 can rotate freely as described later, and is provided by the nut 30b. It is preferred to be fixed or defined. In particular, the inner electrode tube 30 can not only stably and accurately fix and maintain the inner electrode tube 30 to the outer tube 10 and maintain liquid tightness, but also rotate the inner electrode tube 30 as described below. It is preferable that the packing 34 be extrapolated so that it can be made. The packing 34 is preferably formed of carbon packing, and is preferably interposed with a fixing ring 36 formed of rubber for firmly fixing the inner electrode tube 30. In addition, a spiral 37 is formed around the packing 34 to be screwed onto the spiral 19 formed on the second tab so as to be rotatably coupled to the second tab 18b of the outer tube 10. It is preferable. Optionally, it is preferable that a plurality of insertion grooves 38 are formed in the packing 34 so that the rotary tool can be inserted to rotate the packing 34.

2 is a view showing a coupling relationship with the reduction motor 200 during the cleaning of the electrolytic cylinder 100 according to the present invention. As shown in FIG. 2, brushes 40 and 50 are attached to opposite sides of the inner electrode tube 30 and the inner electrode tube 30 of the middle electrode tube 20, respectively. The belt coupling groove 30b for coupling the rotary belt 220 is formed in 30a. The belt coupling groove 30b is coupled to the rotary belt 220, the rotary belt 220 is coupled to the belt pulley 210 connected to the reduction motor 200. Accordingly, the belt pulley 210 and the rotation belt 220 rotate according to the rotation of the reduction motor 200, and the internal electrode tube 30 rotates in association with the rotation drive of the rotation belt 220. As the inner electrode tube 30 rotates, the brush 40 attached to the inside of the middle electrode tube 20 is adsorbed on the outer wall of the inner electrode tube 30 (eg, inflammable substances, adsorbed ions, etc.). The brush 50 attached to the outer side of the inner electrode tube 30 washes the foreign substances (eg, inflammable substances, adsorbed ions, etc.) adsorbed on the inner wall of the middle electrode tube 20.

3 is a block diagram of a wastewater treatment apparatus 300 using an electrolytic cylinder according to the present invention, the wastewater treatment apparatus 300 includes a sump tank 310, an ionization gas generator 320, a positive pressure pump 330, and electrolysis. The cylinder 340, the reaction tube 350, the node injection tube 360, and the settling tank 370 are configured to be included.

The water collecting tank 310 is for collecting waste water to be treated, and the sludge generated from the waste water flowing through the first water supply pipe 311 may be discharged from the waste water through the first and second baffles 313 and 314. Collect it separately. Here, the first partition 313 is formed on one side of the upper end of the water collecting tank 310, the second partition 314 is partially on the lower side of the water collecting tank 310 while maintaining a predetermined distance from the first partition 313. It is formed to overlap. In addition, a filter 315 is formed at a lower end of the collection tank 310 to filter foreign matter having large particles from the wastewater passing through the partition walls 313 and 314. Here, the inflow of waste water is determined by the first on-off valve 312, and the discharge of waste water is determined by the second on-off valve 317. The waste water passing through the sump tank 310 is moved by the second water feed pipe 316, and the second water feed pipe 316 is connected to the mixing pipe 323.

The ionization gas generator 320 serves to generate and supply ionized gas by ionizing air introduced using electrons generated through high voltage discharge. The ionization gas generated by the ionization gas generator 320 includes ions such as OH ⁻ , O ^{2 −} and oxidizing gas components such as ozone (O ₃ ) and hydrogen dioxide (HO ₂ ). The ionization gas flowing out of the ionization gas generator 320 is moved through the gas pipe 321, and the gas pipe 321 is connected to the mixing pipe 323. Supply of the ionized gas is determined by the third on-off valve 322. Ionization gas (especially ozone) used in wastewater treatment has 7 times the oxidizing power of chlorine in nature, and it has strong sterilizing power (in case of ozone, it kills more than 99.99% of bacteria, fungus, moss, and virus within 10 seconds. In case of chlorine sterilization, it is 3150 times faster than sterilization, and in the case of chlorine, the virus is not sterilized, and carcinogenic substances such as THN are generated). It also has anti-foaming effect, decomposes harmful organic substances from factory and industrial wastewater or laundry detergent, toxic substances such as cyanide and phenol, and detoxifies them, and makes it easy to oxidize and remove heavy metals such as mercury and iron manganese. Not only does it have the treatment advantages that do not appear in the treatment, it eventually returns to oxygen, greatly improving BOD and COD, It has the advantage that at all make the pollution (in the case of chlorine, THM, and so on). Ozone used for waste water treatment is a well-known ozone generator. Artificially generating ozone includes a silent discharge method, an electrolysis method, and a photochemical method. Generally, a large amount of ozone is generated by a silent discharge. Law is widely used. The silent discharge method applies a high voltage (6,000 to 18,000 V) of alternating current, inserts dielectrics such as glass and ceramic between opposite electrodes, and injects air or oxygen into the discharge space to generate ozone. The ozone generator and its driving principle are well known to those skilled in the art and will not be described in further detail. Here, the ionization gas generator 320 is to increase the reaction efficiency, it is an additional option.

The positive pressure pump 330 serves to mix the waste water and the ionization gas introduced into the mixing pipe 323 by gas-liquid mixing to move to a designated path (ie, an electrolytic cylinder). That is, the positive pressure pump 330 is connected to the mixing pipe 323, and the ionized gas and the waste water are easily gas-liquid mixed by the suction force of the positive pressure pump.

The electrolytic cylinder 340 is connected to the positive pressure pump 330 through the third water supply pipe 331, and serves to oxidatively decompose and reduce the electrolytic reaction of the gas-liquid mixture mixed by the positive pressure pump 330. To perform. That is, the gas-liquid mixture flowing into the electrolytic cylinder 340 is in contact with the anode of the electrolytic cylinder and the gas-liquid mixture is oxidatively or reductively decomposed, thereby removing (separating) harmful components. The inner electrode tube 341 of the electrolytic cylinder 340 is connected to the negative (-) of the battery 345, the middle electrode tube 342 is connected to the (+) pole of the battery 345. The battery 345 supplies the rectified DC voltage and current to the electrolytic cylinder, and the voltage and current are automatically adjusted and appropriately supplied to the concentration of the waste water to be treated (ie, pH, conductivity, COD concentration, basicity, etc.). It is desirable to. For example, the higher the concentration of wastewater to be treated, the lower the voltage and current, and the lower the concentration of the wastewater to be treated, the higher the voltage and the current. Since the internal structure and operation principle of the electrolytic cylinder 340 are described in detail in the description of FIGS. 1 and 2, they will not be described herein any further.

The reaction tube 350 is connected to the electrolytic cylinder 340, and oxidative decomposition, reductive decomposition, and coagulation reaction by forcibly bringing ions, hydroxides, and bubbled electrolytic gases electrolytically reacted in the electrolytic cylinder 340 into wastewater. It plays a role of activating. The reaction tube 350 is formed to maintain the width of the electrolytic cylinder 340 in a predetermined ratio (eg, electrolytic cylinder: reaction tube = 3: 5), and is constant in length (eg, 3 m to maintain a sufficient time required for the reaction). It is preferable to form so as to hold).

The node injection tube 360 is connected to the reaction tube 350 through the fourth water pipe 355, and is composed of a plurality of node injection ports 361, and compresses and mixes the gas-liquid mixture passed through the reaction tube 350. Serves to spray. The gas-liquid mixture introduced through the reaction tube 350 and the fourth water pipe is compressed and mixed while passing through the node injection holes 361 of the node injection tube 360. The principle of compression-mixing the gas-liquid mixture passing through the node injection holes 361 utilizes Bernoulli's theorem, which is a hydrodynamic theorem that represents the relationship between pressure and flow rate in a moving fluid, and height to any horizontal plane. Bernoulli's theorem is that the total dynamic energy of the fluid in motion, i.e. the energy due to the pressure of the fluid, the potential energy due to gravity on any horizontal plane, and the kinetic energy of the fluid are constant. Bernoulli's theorem, therefore, is an energy conservation principle for an ideal fluid with uniform or laminar flow. Thus, according to Bernoulli's theorem, a decrease in fluid pressure means an increase in flow rate. For example, when fluid flows through a conduit of varying cross sectional area lying in the horizontal plane, the flow rate increases as the cross sectional area of the conduit decreases. Therefore, the pressure at which the fluid acts on the conduit is the smallest where the cross section of the conduit is minimal.

In order to apply Bernoulli's theorem to the present invention, the annular node injection holes 361 are formed at predetermined lengths in a certain region of the node injection pipe 360, and the gas-liquid mixture is restricted by restricting the gas-liquid mixture passing through the node injection holes 361. The mixture is swirled to induce compression mixing. Since the node injection tube 360 has a plurality of node injection holes 361, the gas-liquid mixture is compressed and mixed several times each time the node injection holes 361 pass. Therefore, as this process is repeated, the ionization gas of the gas-liquid mixture is completely decomposed, a part of oxygen plays an oxidation role, and a part is dissolved, thereby maximizing the purification process. Whether or not the gas-liquid mixture passed through the node injection pipe 360 is determined by the fourth on-off valve 362. Here, the node injection pipe 360 is to increase the reaction efficiency, it is an additional option.

The settling tank 370 collects the gas-liquid mixture that has passed through the node injection tube 360, and serves to separate the gas-liquid mixture discharged from the node injection tube 360 into treated water and foam sludge. The treated water in the gas-liquid mixture introduced into the settling tank 370 is discharged to the outside through the third and fourth baffles 371 and 372. Here, the third partition 371 is formed on one side of the upper end of the settling tank 370, the fourth partition 372 is on the lower one side of the settling tank 370 while maintaining a predetermined distance from the third partition 371 Some overlap. In addition, the fourth partition 372 is provided with a moving hole 373 for directly flowing out the treated water at the lower end. The treated water passing through the third and fourth partitions 371 and 372 is discharged through the first discharge pipe 374, and the discharge of the treated water is determined by the fifth open / close valve. A foam outlet 377 is formed at one upper end of the settling tank 370 to discharge the foamed sludge. In addition, a separate collection tank collecting the foam sludge discharged from the foam outlet 377 of the settling tank 370. The 380 is formed to be coupled to the settling tank 370 in the lower direction of the bubble outlet 377.

In addition, the first and second conveying pipes 376 and 381 are connected to one end of the settling tank 370 and the separation collecting tank 380, respectively, and discharged to the first and second conveying pipes using the conveying pump 390. The sludge to be formed is conveyed to the water collecting tank 310 through the third conveying pipe 391. The returned sludge is used as an oxidation catalyst while being mixed with wastewater flowing into the sump 310.

When the wastewater treatment process is completed, the gas-liquid mixture remaining in the electrolytic cylinder 340 and the reaction tube 350 is discharged through the discharge pipe 343 connected to the inlet of the electrolytic cylinder 340. Whether the remaining gas-liquid mixture is discharged is determined by the seventh open / close valve 344.

As described above, the ionization gas generator 320 and the node injection tube 360 is implemented to maximize the wastewater treatment efficiency of the present invention, and may be omitted in consideration of the installation area, cost, or treatment time. Of course.

Hereinafter, an operation relationship of the electrolytic cylinder and the wastewater treatment apparatus and method using the same according to the present invention will be described in more detail with reference to the accompanying drawings.

Figure 4 is a flow chart illustrating the overall operation of the electrolytic cylinder and the wastewater treatment apparatus using the same according to the present invention, the internal electrode tube of the electrolytic cylinder is connected to the negative electrode of the battery, the central electrode tube of the battery (+) Suppose you have connected to the pole. In addition, it is assumed that the wastewater treatment apparatus of the present invention implements an optional ionization gas generator and a node injection tube.

First, the first opening and closing valve is opened and the waste water to be treated through the first water supply pipe is introduced into the collection tank (S410). The wastewater introduced into the sump is separated from the sludge through the first and second partitions and is collected in the space in the second partition. At the same time, the ionization gas generator is operated to generate the ionization gas, and the generated ionization gas is discharged to the mixing pipe to mix the waste water flowing out of the sump and the gas-liquid mixture (S420). The gas-liquid mixing of the ionized gas and the waste water is performed by a positive pressure pump, and the ionization gas is discharged into the mixing tube by opening the second on / off valve, and the waste water is introduced into the mixing tube by opening the third on / off valve. Next, the gas-liquid mixture introduced into the mixing tube is oxidized by the ionization gas (for example, ozone) to be first sterilized, and the gas-liquid mixture is transferred to the electrolytic cylinder by a positive pressure pump (S430). The ionizing gas (especially ozone) has a strong oxidizing power, and kills more than 99.99% of bacteria in the ozone, mold, moss, and virus within 10 seconds. In the case of Escherichia coli, it is 3150 times faster than chlorine sterilization. Viruses are not sterilized and have carcinogenic substances such as THN), as well as combine with odor molecules in water to remove odors, greatly reduce turbidity in water, and also have anti-foaming effects. It does not have the treatment advantages that do not appear in chlorine treatment such as decomposing harmful organic substances from laundry detergents or toxic substances such as cyanide and phenol, and making them harmless and oxidizing and removing heavy metals such as mercury and iron manganese. In the end, it returns to oxygen and greatly improves BOD and COD and produces no secondary pollutants (in the case of chlorine, THM, etc.). It has the advantage.

In addition, conventionally, a method of purifying waste water by injecting air or ozone into an aeration tank is used. In this method, a plurality of aeration pipes are installed deeply (for example, 4 to 5 m) when air or ozone is injected. High energy compressors (high pressure compressors) are required to inject air or ozone, which requires a lot of energy and installation costs. The conventional method has a disadvantage in that oxidative decomposition dissolution efficiency is lowered because air or ozone injected into the aeration tank floats on the surface of the water immediately after injection and is scattered in the air. However, the present invention has the advantage of maximizing oxidative decomposition dissolution efficiency because gas-liquid mixture of waste water (liquid) and ionization gas (gas) without additional equipment.

The gas-liquid mixture introduced through the inlet of the electrolytic cylinder is electrolyzed by the voltage applied to the inner and middle electrode tubes of the electrolytic cylinder, and the electrolytic gases generated from the two poles (for example, oxygen, hypochlorous acid and some By using ozone, metallic hydroxide, hydrogen, etc., various harmful elements (e.g., COD, SS, TN, TP, odor, bacteria, color, etc.) are oxidatively decomposed, reductively decomposed, and coagulated to be transferred to the reaction tube ( S440). In the positive electrode oxygen, hypochlorous acid and some ozone are generated to produce OH radical ions, which oxidize and decompose various harmful elements. In the negative electrode, hydrogen ions are generated to reduce the organic matter. In addition, metallic hydroxides (eg Fe ³⁺ + 3OH, Al ³⁺ + 3OH), hydrogen and other gases from two poles are separated and removed by bubbles by sludgeizing and dissipating the harmful elements. do. Examples of chemical formulas for oxidative decomposition, reductive decomposition, and agglomeration reactions occurring at two poles are as follows.

Fe ³⁺ + 3OH ^- ⇒ Fe (OH) ₃ ↓ (agglomeration)

Al ³⁺ + 3OH ^- ⇒ Al (OH) ₃ ↓ (agglomeration)

2OH ^- ⇒H ₂ O + O ↑ + 2e (oxidation decomposition)

2H ⁺ + 2e⇒H ₂ ↑ (Reduction Decomposition)

The gas-liquid mixture electrolyzed in the electrolytic cylinder is transferred to the reaction tube by a positive pressure pump, and the gas-liquid mixture introduced into the reaction tube is ions and hydroxyls (e.g., non-reacted non-reacted sources of waste water) and electrolyzed in the electrolytic cylinder. Oxidative decomposition, reductive decomposition, and coagulation reactions are activated by forced contact with bubbled electrolytic gases (eg, oxygen, hydrogen, ozone, chlorine, and other ions generated in two electrode tubes) (S450). They are forcedly contacted by positive pressure, and the reaction tube is formed to maintain the width of the electrolytic cylinder in a certain ratio (e.g. electrolytic cylinder: reaction tube = 3: 5), and the length of the reaction tube is maintained to maintain sufficient time for the reaction. For example, it is preferable to form so as to maintain 3m). In addition, in the reaction tube, an alkaline solution (e.g., H ⁺ + OH ^- ⇒ OH) and an acidic solution (e.g., H ⁺ + H ₂ O ⇒ OH + H ⁺ ) generated in the electrolytic cylinder are combined to enhance the reaction efficiency. Let's do it. Therefore, the contaminants are adsorbed and separated in the reaction tube, and the hydrated contaminants are reduced and adsorbed to be discolored, bleached, deodorized, and sterilized.

The gas-liquid mixture passing through the reaction tube is introduced into the node injection tube through the fourth water pipe, and the gas-liquid mixture introduced into the node injection tube is compressed and mixed while passing through the plurality of node injection holes (S460). The principle of compression-mixing the gas-liquid mixture passing through the node injection port is based on Bernoulli's theorem, and restricts the gas-liquid mixture passing through the node injection port to induce swirling and compression mixing of the gas-liquid mixture. Since the node injection tube is formed with a plurality of node injection holes, the gas-liquid mixture is compressed and mixed several times each time it passes through the node injection holes. Therefore, as this process is repeated, the ionization gas of the gas-liquid mixture is completely decomposed, a part of oxygen plays an oxidation role, and a part is dissolved, thereby maximizing the purification process.

The gas-liquid mixture passed through the nozzle injection tube is injected into the settling tank, and the gas-liquid mixture injected into the settling tank is separated into treated water and foam sludge by the third and fourth partition walls, and the treated water is separated from the space between the fourth partition wall and the settling tank, and It is moved along the moving hole of the fourth partition wall and is discharged to the outside through the first discharge pipe (S470). The word minutes and the gas-liquid separation in the course of a gas-liquid mixture is injected through the investigator, activated waters is reduced oxidation neutralization or being dissolved in the treatment water, an inert gas and a reducing gas (e.g., H2 ^-, CO _2, etc.) atmosphere Scattered in the middle.

The gas-liquid mixture sprayed into the sedimentation tank is separated into foam sludge and treated water, and the foamed sludge floats and flows into the separation collection tank through the bubble outlet of the sedimentation tank. Recycle to (S480). The treated water sprayed into the sedimentation tank is separated and purified by floating fine colloids and foaming or sedimentation into sludge. The foam sludge is separated from the treated water by the third and fourth partition walls, and is separated from the treated water by the water limit of the settling tank (ie, because the bubble outlet is formed below the top of the settling tank). Foam sludge only slowly flocculates flocculant floc and settles at the bottom of the settling tank and separation collection tank. Sludge (that is, metallic or hydroxide ionic activated sludge) precipitated in the settling tank and the separation collection tank is returned to the sump tank by the return pump (S480). At the bottom of the settling tank and the separation collection tank, respective conveying pipes (first and second conveying pipes) are connected, and the respective conveying pipes are mixed and conveyed to the water collecting tank through the third conveying pipe. Activated sludge returned to the sump is used as an oxidation catalyst for wastewater flowing into the sump, thereby maximizing the purification efficiency.

Next, it is determined whether the wastewater treatment process is completed (S490). If the wastewater treatment process is not completed, the process proceeds to the step (S410) and repeats subsequent steps, and if the wastewater treatment process is completed, the electrolytic cylinder and the reaction tube are completed. The gas-liquid mixture remaining in the and the sludge generated after the electrolytic reaction is discharged to the outside through the second discharge pipe (S495).

In addition, as shown in FIG. 2, a brush is attached to the inner side of the inner electrode tube and the middle electrode tube of the electrolytic cylinder, and the electrolytic cylinder is coupled through a belt pulley and a rotating belt connected to the reduction motor, and the reduction motor Rotating may be implemented to wash the foreign matter adsorbed on the outer wall of the inner electrode tube and the inner wall of the middle electrode tube. In addition, although the inner electrode tube of the electrolytic cylinder is implemented with a special plating (for example, platinum plating), it may lose its function when used for a long time depending on the acidic or alkaline concentration of the waste water (in high concentration treatment, the life of the inner electrode tube) Is about 1 to 1.5 years). In this case, the inner electrode tube needs to be replaced. To replace the inner electrode tube, the inner electrode tube can be replaced after releasing the screwing with the outer tube using a rotating tool such as a spanner in the coupling groove of the packing. .

The above description is only for explaining one embodiment, and the present invention is not limited to the above-described embodiment and can be variously changed within the scope of the appended claims. For example, the shape and structure of each component specifically shown in the embodiments of the present invention may be modified.

As described above, the electrolytic cylinder and the wastewater treatment apparatus and method using the same according to the present invention minimize the sludge discharged by maximizing the digestion of the reacted electrolytes generated in the electrolytic reaction, and the active gases which are air pollution sources as oxidation catalysts. Recycling has the effect of removing air pollutants.

In addition, the present invention can vertically install the electrolytic cylinder and the reaction tube to minimize the facility site area, simplify the processing process is possible to automate and minimize the operating manpower.

In addition, the present invention is to make the electrode tube made of a special metal (for example, platinum, titanium) in order to solve the problems of oxidation, corrosion, and precipitation problems in the electrolytic wastewater treatment, and to automatically clean the foreign matter adsorbed on the electrode tube using a brush. And, when the life of the electrode tube is finished, there is an effect that can easily replace the electrolytic cylinder using a semi-permanent.

Claims (17)

An outer tube having a suction port through which waste water is introduced on one side and a discharge port through which the treated water is discharged on the other side; A central electrode tube inserted into and fixed to the inner tube at a predetermined interval inside the outer tube, and connected to a power terminal such that power of one pole is applied; And Inserted and fixed to the inside of the central electrode tube at regular intervals, and to supply power to the other electrode facing the electrode applied to the central electrode tube to electrolyze the waste water in cooperation with the central electrode tube. Electrolytic cylinder consisting of an internal electrode tube to which the power terminal is connected. According to claim 1, The first tab for supporting the middle electrode tube is inserted into one side of the outer tube, the second tab for supporting the other side of the middle electrode tube is inserted in the other side of the outer tube, And a power supply terminal connected to the middle electrode tube is connected by a connection piece fixed to the middle electrode tube. According to claim 1, The packing is fixed to the end of the inner electrode tube is inserted into the upper end of the outer tube, Electrolytic cylinder, characterized in that a plurality of insertion grooves are formed in the upper portion of the packing to be rotated by inserting a rotary tool. The electrolytic cylinder according to claim 1, wherein the central electrode tube is formed of a titanium round pipe, and the inner electrode tube is formed of a platinum shaft. The method of claim 1, wherein a brush is attached to an inner side of the middle electrode tube and an outer side of the inner electrode tube, respectively. And rotating the inner electrode tube to wash the inner wall of the middle electrode tube and the outer wall of the inner electrode tube. In the wastewater treatment device, A sump collecting the waste water to be treated; A positive pressure pump for mixing the waste water flowing out of the sump and the ionizing gas flowing out of the ionization gas generator to generate a gas-liquid mixture, and transferring the gas-liquid mixture to a designated path; An electrolytic cylinder for oxidative decomposition, reductive decomposition and agglomeration reaction by electrolytically reacting the gas-liquid mixture introduced through the positive pressure pump; A reaction tube for activating oxidative decomposition, reductive decomposition, and agglomeration reaction by forcibly contacting the electrolytically reacted gas-liquid mixture introduced through the electrolytic cylinder with the electrolytes electrolyzed in the electrolytic cylinder; And Separating the gas-liquid mixture into treated water and foam sludge to discharge the foam sludge, and separates the treated water from the precipitated foam sludge and discharges it to the outside, the wastewater treatment using an electrolytic cylinder Device. The method of claim 6, An ionization gas generator for generating and supplying ionization gas; And Waste water using an electrolytic cylinder having a plurality of annular node injection port, and further comprising a node injection tube for compression-mixing and spraying the gas-liquid mixture introduced through the reaction tube through the plurality of annular node injection ports Processing unit. The method of claim 6, Electrolytic characterized in that it further comprises a separate collection tank for collecting the foam sludge generated in the settling tank, the foam sludge precipitated in the settling tank and the foam sludge of the separation collection tank to the collecting tank using a conveying pump Wastewater treatment device using a cylinder. The sludge of claim 6, wherein the sump is sludge-laden wastewater through the first bulkhead connected to the upper end of the sump and the second bulkhead connected to the lower end of the sump so as to partially overlap with the first partition. The wastewater passing through the first and second partitions is filtered through a filter and sent out to the outside. The sedimentation tank is the treated liquid and the foam sludge through the third partition wall connected to the upper side of the sedimentation tank and the fourth partition wall connected to the lower side of the sedimentation tank so as to partially overlap the third partition wall while maintaining a predetermined distance. Separate, The wastewater treatment apparatus using the electrolytic cylinder to form a moving hole through which the treated water can be moved at the lower end of the fourth partition wall to send the treated water passed through the third and fourth partition walls and the moving hole to the outside. The method of claim 6, wherein the electrolytic cylinder An outer tube having a suction port through which waste water is introduced on one side and a discharge port through which the treated water is discharged on the other side; A central electrode tube inserted into and fixed to the inner tube at a predetermined interval inside the outer tube, and connected to a power terminal such that power of one pole is applied; And Inserted and fixed to the inside of the central electrode tube at regular intervals, and to supply power to the other electrode facing the electrode applied to the central electrode tube to electrolyze the waste water in cooperation with the central electrode tube. Wastewater treatment apparatus using an electrolytic cylinder, characterized in that the inner electrode tube is connected to the power supply terminal. The method of claim 10, wherein a first tab for supporting the middle electrode tube is inserted into one side of the outer tube, a second tab for supporting the other side of the middle electrode tube is inserted in the other side of the outer tube, The power supply terminal connected to the middle electrode tube is connected to the wastewater treatment apparatus using an electrolytic cylinder, characterized in that connected by the connecting piece fixed to the middle electrode tube. 11. The method of claim 10, The packing is fixed to the end of the inner electrode tube is inserted into the upper end of the outer tube, The waste water treatment apparatus using an electrolytic cylinder, characterized in that a plurality of insertion grooves are formed in the upper portion of the packing so as to rotate by inserting a rotary tool. The wastewater treatment apparatus according to claim 10, wherein the central electrode tube is formed of a titanium round pipe, and the inner electrode tube is formed of a platinum shaft. The method of claim 10, wherein the brush is attached to the inside of the middle electrode tube and the outside of the inner electrode tube, respectively, Rotating the inner electrode tube to clean the inner wall of the inner electrode tube and the outer wall of the inner electrode tube waste water treatment apparatus using an electrolytic cylinder. In the wastewater treatment method, (a) collecting waste water to be treated; (b) gas-liquid mixing the waste water and ionization gas; (c) electrolytically reacting the gas-liquid mixture to generate an electrolyte, and oxidatively decomposing, reducing and coagulating the gas-liquid mixture using the electrolyte; (d) forcibly contacting the electrolytically reacted gas-liquid mixture with the electrolyzed electrolytes to activate oxidative decomposition, reductive decomposition, and agglomeration reactions; And (e) separating the sprayed gas-liquid mixture into foam sludge and treated water, and removing the floated foam sludge, and separating the treated water from the precipitated foam sludge and discharging it to the outside. Wastewater treatment method using a cylinder. The method of claim 15, The ionization gas of step (b) is generated using an ionization gas generator, gas-liquid mixture of the ionization gas and the waste water, The waste water treatment method using an electrolytic cylinder, characterized in that for spraying by mixing the gas-liquid mixture activated in the step (d) by compression mixing. The wastewater treatment method according to claim 15, further comprising conveying the discharged foam sludge and the precipitated foam sludge and mixing them with the wastewater to be treated.