KR20170096701A - caterpillar type electrolysis apparatus and Wastewater treat method using it - Google Patents

caterpillar type electrolysis apparatus and Wastewater treat method using it Download PDF

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KR20170096701A
KR20170096701A KR1020160018248A KR20160018248A KR20170096701A KR 20170096701 A KR20170096701 A KR 20170096701A KR 1020160018248 A KR1020160018248 A KR 1020160018248A KR 20160018248 A KR20160018248 A KR 20160018248A KR 20170096701 A KR20170096701 A KR 20170096701A
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electrode
unit
tank
main frame
wastewater
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KR1020160018248A
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Korean (ko)
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김성철
김선우
이호성
김민규
안경섭
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성수기공 주식회사
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Publication of KR20170096701A publication Critical patent/KR20170096701A/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/005Combined electrochemical biological processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/006Regulation methods for biological treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • C02F3/303Nitrification and denitrification treatment characterised by the nitrification
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • C02F3/305Nitrification and denitrification treatment characterised by the denitrification
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/46125Electrical variables
    • C02F2201/46135Voltage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/46125Electrical variables
    • C02F2201/4614Current

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The present invention relates to a caterpillar-type electrolytic apparatus adapted to be installed in a treatment tank of a wastewater treatment system comprising an anaerobic tank, an anoxic tank, a treatment tank, and a settling tank, which enables distances between electrodes to be automatically adjusted so as to maintain predetermined current and voltage of the electrodes for electrolysis; and to a wastewater treatment system using the same. The caterpillar-type electrolytic apparatus according to the present invention comprises: two or more electrode units which are installed in a treatment tank containing treatment water for electrolysis of wastewater; and an electrode distance adjustment unit which adjusts a distance between the electrode units for maintaining current and voltage predetermined according to operating conditions, wherein the electrode unit comprises: a main frame which is adapted to be mounted in the treatment tank; a driving sprocket which is installed on the main frame; an electrode driving unit which is installed on the main frame to rotate the driving sprocket; and a chain electrode which is formed to include a closed loop to be rotatably driven by the driving sprocket, and is extended downward from the main frame so that a part of the chain electrode is immersed in the treatment water inside the treatment tank when rotating.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caterpillar type electrolysis apparatus and a wastewater treatment method using it,

The present invention relates to a caterpillar electrolytic apparatus and a wastewater treatment method using the same, and more particularly, to a caterpillar electrolytic apparatus provided in a treatment tank in a wastewater treatment system comprising an anaerobic tank, an anoxic tank, a treatment tank and a settling tank, And a separation distance between the electrodes can be automatically adjusted so that the voltage can be maintained, and a wastewater treatment method using the same.

Recently, in order to prevent the release of phosphorus (TP), which is the cause of the eutrophication of rivers and lakes and the occurrence of red tide in coastal areas, the government has introduced water quality standard of public sewage treatment facility as 0.2 ㎎ / ℓ More and more economical and efficient technologies are being developed in the processing of phosphorus (TP) as the process is enhanced.

Generally, the removal method of phosphorus contained in the wastewater is an excessive removal of phosphorus in the microorganism from the anaerobic reactor and an excessive absorption of phosphorus into microbial cells by using the energy generated in the oxidation process of the organic material in the aerobic tank, A method in which phosphorus is excessively released by a microorganism in an anaerobic reaction tank, a method in which a mixed solution is separated from a microorganism, and a lime or a metal salt is added to the separated supernatant is removed.

It is known that ammonia nitrogen is removed from the influent water of wastewater by nitrification of nitrate by microbial respiration process of the aerobic tank, and nitrate is reduced to nitrogen gas by transporting nitrate nitrate to anoxic tank.

However, since the biological treatment method is complicated and the reliability of the nutrient removal rate by the active microorganisms is very low, the chemical treatment method of introducing the chemical into the wastewater is performed in order to increase the removal efficiency. However, this method is disadvantageous in that it is expensive, increases the throughput of surplus sludge, and decreases microbial activity when the chemical is continuously supplied.

On the contrary, when iron is used as an electrode for electrolysis in the wastewater treatment, the iron ion generated in the electrode reacts with phosphorus, nitrogen and organic substances in the wastewater to form an insoluble salt, thereby precipitating the wastewater effectively.

Regarding the method of treating wastewater by using electrolysis, Korean Patent Registration No. 10-0490310 discloses a method of treating wastewater with a conventional iron-electrolysis apparatus by removing an anaerobic tank to remove iron- Described is a sewage treatment method using decomposition.

However, since the above method uses a fixed electrode, non-uniform erosion of the electrode occurs, and there is no scale treatment means for reducing the function of the electrode by reducing the treatment efficiency of the pollutant, And it is troublesome to replace the iron electrode after the iron electrode is consumed by the electrolysis.

Korean Patent No. 10-0490310 Korean Patent No. 10-1370395

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for treating waste water by using a caterpillar type electrolytic apparatus including an anaerobic tank, And an object thereof is to provide a caterpillar type electrolytic apparatus and a wastewater treatment method using the same.

The caterpillar type electric distribution apparatus according to the present invention comprises two or more electrode units installed in a treatment tank containing treated water for electrolysis of wastewater and a plurality of electrode units for adjusting the separation distance of the electrode units And an electrode interval adjusting unit, wherein the electrode unit includes a main frame formed to be mountable in the processing tank, a drive sprocket installed in the main frame, an electrode driver installed in the main frame to rotate the drive sprocket, And a chain electrode body which is formed to have a closed loop so as to be rotatably driven by the drive sprocket and extends downward of the main frame so as to partially rotate in the treatment water in the treatment tank.

Wherein the electrode interval adjusting unit comprises: a rail part extending along a moving direction in which the electrode unit moves in an upper part of the treatment tank; a traveling part installed at a lower part of the main frame and capable of traveling along the rail part; And a frame driving unit for moving the electrode unit along the rail unit to adjust the distance between the electrode units.

The frame driving unit includes a rotary rod extending through the main frames along a direction parallel to the rail and having a thread formed on an outer circumferential surface thereof, And a rod rotation driving unit for rotating the rotation rod in one direction or the other direction.

Wherein the electrode unit includes a first electrode unit and a second electrode unit and a third electrode unit provided respectively in front of and behind the first electrode unit along the extending direction of the rail portion, And a second threaded portion formed on both sides of the central portion, wherein the first threaded portion and the second threaded portion are mutually opposite in thread direction, And a first rod bracket and a second rod bracket are provided on the main frame of the second electrode unit and the third electrode unit so that the first screw portion and the second screw portion can be screwed, respectively, It is preferable that the first electrode is formed.

An elevating driving part for elevating and lowering the elevating part with respect to the base part; and a moving part for moving the elevating part in a horizontal direction And a horizontal driving unit that moves the horizontal moving unit in a horizontal direction with respect to the elevating unit, wherein the electrode interval adjusting unit is formed to be provided in the horizontal driving unit of the moving unit .

The method for treating wastewater according to the present invention comprises the steps of 1) performing a blowing process of wastewater to be treated in an anaerobic tank, 2) performing a denitrification process in the anoxic tank for the wastewater to be treated which has passed through the anaerobic tank, 3) A step of introducing treated water into a treatment tank for aerobic electrolytic reaction and reacting the iron ions formed by electrolysis with phosphates, nitrogen compounds and organic substances in the treated water; and 4) And a step of introducing the treated water into the settling tank to precipitate and remove a reaction product of iron ions, phosphate and organic substances, wherein the treatment tank is provided with a caterpillar-shaped electrolytic solution of any one of the first to fifth aspects for electrolysis Device.

It is preferable that the denitrification process of the anoxic tank is performed through oxidation and reduction by a mixed microorganism of Nitrosomonas, Nitrosococcus, Nitrobacter and Dinitrobacteria.

According to the caterpillar electrolytic apparatus and the wastewater treatment method using the caterpillar electrolytic apparatus of the present invention, it is possible to efficiently treat wastewater through a wastewater treatment facility comprising an anaerobic tank, an anoxic tank, a treatment tank, and a settling tank.

In addition, the caterpillar electrolytic apparatus installed in the treatment tank can automatically adjust the separation distance between the electrodes so that the current and voltage of each electrode can be maintained at a set value according to the operating conditions such as the state of the wastewater to be charged and the amount of sludge .

1 is a conceptual diagram of a waste water treatment system according to the present invention,
2 is a front view showing a caterpillar type electrolytic apparatus,
3 is a front view showing another embodiment of the cater-type electrolytic apparatus including a plurality of chain electrode bodies,
4 is a plan view of the caterpillar electrolytic apparatus of Fig. 2,
Fig. 5 is a side view of the caterpillar electrolytic apparatus of Fig. 2,
6 is an enlarged view of the interval adjusting unit
7 is a view showing another embodiment of a caterpillar type electrolytic apparatus further comprising a mobile unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a caterpillar electrolytic apparatus according to an embodiment of the present invention and a wastewater treatment method using the same will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Fig. 1 schematically shows the structure of a wastewater treatment system 1 including a caterpillar electrolysis apparatus 10 according to the present invention.

The wastewater treatment system 1 is introduced into the anaerobic tank 3 through the introduced wastewater, that is, the primary clarifier 2 in which the treatment water is primarily precipitated.

In the anaerobic tank (3), the desorption process is performed.

The phosphorus in the anaerobic tank 3 is formed by absorbing and storing the fermentation by-products such as acetate and other short-chain fatty acids produced by the fermentation reaction in the cell cell. At this time, the fermentation anhydrides are stored in the form of poly-hydroxy-butyrate (PHB), which is a polymer substance that decomposes organic matter in an anaerobic condition and stores the microorganism in cells.

The treated water discharged in the anaerobic tank 3 is transferred to the anoxic tank 4, and the denitrification process is performed.

In the denitrification process of the anoxic tank 4, the nitrate contained in the inflow sewage is oxidized to nitrite by microorganisms such as Nitrosomonas and Nitrosococcus, nitrification of the nitrite by Nitrobacter, , And the nitric acid thus formed is reduced by a denitrogen oxidizing microorganism dinitobacterium or the like with nitrogen gas. The denitrifying oxidizing microorganism combines the carbon source of wastewater and nitrate nitrogen under the condition that there is substantially no dissolved oxygen to generate nitrogen gas to remove the nitrogen compound. At this time, organic carbon source may be supplied from the outside in some cases.

The anoxic tank 4 converts the nitrogen compound contained in the influent water and the nitrate nitrogen that has been nitrified in the oxic tank and internally transported into nitrogen gas to be removed.

After passing through the anoxic tank 4, iron ions are generated through electrolysis in the treatment tank 5 for the aerobic electrolytic reaction.

The phosphorus partially removed in the anoxic tank 4 and introduced into the treatment tank 5 is chemically bonded to the iron oxide produced in the treatment tank 5 to be removed. That is, the bivalent iron ion generated on the surface of the iron electrode on the anode of the electrolytic device 10 is reacted with the dissolved oxygen in the treatment tank 5 in the process of moving from the anode to the surface of the iron electrode in accordance with the flow of current in the aqueous solution 3 is oxidized to iron. At this time, iron ions in the reaction tank react with dissolved oxygen to form iron oxide particles in a predominantly granular state, and the phosphate in the wastewater is chemically bonded and removed.

In addition, the iron ion deposited in the electrolytic apparatus 10 activates the proliferation of nitrifying bacteria in the treatment tank 5. The ammonia nitrogen contained in the treated water flowing from the anoxic tank 4 is nitrified by the nitrate by the breathing process of the nitrifying bacteria, and the nitrate is returned to the inside of the anoxic tank 4 and is removed by the nitrogen gas.

That is, in the present invention, phosphorus removal by electrolysis of iron is carried out by the principle that an iron ion generated by electrolysis is reacted with a soluble phosphate in influent water to form insoluble precipitate, The iron ion produced by the electrolysis promotes the growth of nitrifying bacteria to improve the nitrification rate and the denitrification is performed in the anoxic tank 4 by internally transporting the nitrified nitrate to the anoxic tank 4.

In addition, in the treatment tank 5, oxidation and decomposition ability of the organic material is increased due to electrical oxidation, so that the sludge weight reduction effect is also improved.

A part or all of the treated water subjected to the aerobic treatment in the treatment tank 5 is internally transported to the anoxic tank 4 by internal transportation and the remaining aerobic treatment water is transported to the sedimentation tank 6. [ It is preferable that 250 to 400% of the treated water in the treatment tank 5 is conveyed to the internal conveyance.

The treatment tank 5 may be equipped with an air lift, an aeration tube or a coated water pump to prevent sludge sedimentation, and the treatment water is agitated using the above devices.

In the next settling tank 6, the sludge contained in the treated water transferred from the treatment tank 5 is settled below the settling tank 6, and a part of the settled sludge is returned to the anoxic tank 4 by external transfer , And the remaining sludge is discharged to the outside. Further, the upper treatment water is discharged to the outside. It is preferable that the external transfer is carried out such that 30 to 100% of the sludge is transported.

In the present invention, the biological and chemical treatment methods including the operation of the anaerobic tank 3, the anoxic tank 4, the treatment tank 5 and the settling tank 6, and the microorganisms used in the respective reaction tanks, The manner in which it is used can be employed.

Hereinafter, the cater-type electrolytic apparatus 10 installed in the treatment tank 5 will be described in detail.

The caterpillar electrolytic apparatus 10 of the present invention is for electrolyzing the wastewater to be treated which has flowed into the treatment tank 5 and includes three electrode units 100 provided on the upper part of the treatment tank 5, And an electrode interval adjusting unit 200 for adjusting the interval of the units 100.

The electrode unit 100 includes a main frame 110, a drive sprocket 120 installed on the main frame 110, an auxiliary frame 130 extending to a lower portion of the main frame 110, A driven sprocket 140 installed at a lower end of the drive sprocket 130 and a chain electrode body 150 formed by a driven sprocket 140 and a drive sprocket 120 to form a closed loop. The main frame 110 is provided with an electrode driver 160 for rotating the rotation shaft of the drive sprocket 120.

The electrode driving unit 160 is directly connected to the rotating shaft of the driving sprocket 120 to rotate the rotating shaft. The electrode drive unit 160 is directly connected to the rotation shaft of the drive sprocket 120. Alternatively, the electrode drive unit 160 may be installed at a position spaced apart from the rotation axis of the drive sprocket 120, So that power transmission is possible.

The auxiliary frame 130 is connected to the lower portion of the main frame 110 and extends downward. The driven sprocket 140 is installed at the lower end of the auxiliary frame 130 so that the chain electrode body 150 is caught by the driving sprocket 120 and the driven sprocket 140 to form a closed loop.

In particular, when the waste water flows into the treatment tank 5, the driven sprocket 140 extends to a height at which a portion of the lower end of the chain electrode body 150 can be submerged in the waste water, The electrolysis is performed.

The electrode unit 100 may extend a reaction region where a plurality of chain electrode bodies 150 are installed to electrolyze, as shown in FIG.

Although not shown, a tension holding portion may be provided at a connection portion between the main frame 110 and the auxiliary frame 130 to maintain the tension of the chain electrode body 150. The tension holding unit adjusts the tension of the chain electrode unit 150 to be maintained at a constant level by elastically adjusting the position of the driven sprocket 140 through a compression spring that elastically supports the auxiliary frame 130 downward.

In addition, an electrode cleaning unit for cleaning the chain electrode body 150 may be provided on the main frame 110. The electrode cleaning unit may include a spray nozzle for spraying washing water onto the surface of the chain electrode body 150 and a scraper or a brush for removing foreign substances adhering to the surface of the chain electrode body 150. In addition, It is possible to prevent the deterioration of the efficiency of electrolysis by removing the foreign substances adhering to the surface of the electrode which is charged and discharged.

The electrode interval adjusting unit 200 is for adjusting a distance between the three electrode units 100 to maintain a current for electrolysis within a certain range.

The electrode unit 100 is driven by receiving power through a power supply unit. However, since the supply voltage is constant, the resistance value varies depending on various variables such as the amount and concentration of foreign substances contained in the wastewater, .

When the interval between the electrode units 100 is fixed, the amount of electric current varies depending on the state of the wastewater to be treated. Therefore, the electrolysis capacity is the best State can not be maintained.

Therefore, the electrode interval adjusting unit 200 is formed so that the amount of current can be maintained within the set range so that the electrolytic device 10 can maintain a constant level of electric capacity of the electrolytic device 10 according to the state of the wastewater.

The electrode interval adjusting unit 200 includes a rail 210 installed at an upper portion of the treatment tank 5 and a driving unit 210 installed at a lower portion of the main frame 110, And a frame driving unit 230 for moving the main frame 110 so as to move along the rail part 210.

As described above, the rail part 210 is installed on the upper part of the treatment tank 5, and two of the rail parts 210 are provided side by side along the moving direction for adjusting the spacing of the electrodes. In this embodiment, the rail 210 is formed in a protruding shape protruding from the top of the I-shaped profile, but the shape of the rail 210 is not limited thereto and may be formed in various shapes.

The traveling unit 220 moves along the rail 210 and is formed at a lower portion of the main frame 110 as described above. The traveling unit 220 includes a plurality of traveling wheels capable of traveling along the rail 210. The traveling wheels include inlet grooves corresponding to the projections formed on the upper end of the rail 210, So that the inlet groove is inserted into the upper protrusion of the rail 210 and moves. Therefore, the traveling wheels smoothly travel along the rail portion 210 without departing from the rail portion 210.

The frame driving unit 230 includes a rotating rod 231 extending through the main frame 110 of each electrode unit 100 and an idle bracket 231 mounted on the main frame 110 and connected to the rotating rod 231. [ A first rod bracket 236, a second rod bracket 237, and a rod rotation driving unit for rotating the rotation rod 231.

As described above, in this embodiment, three electrode units are provided. However, in order to simplify the explanation, the electrode unit 100 in the center is divided into the first electrode unit 100a, the first electrode unit 100a, The electrode unit 100 is referred to as a second electrode unit 100b and a third electrode unit 100c, respectively.

The rotating rod 231 extends parallel to the extending direction of the rail 210 and the main frame 110 of each of the first to third electrode units 100a, 100b, Through holes (111) through which the first through-holes (231) can pass.

As shown in the side view of the electrode unit 100, the rotary rods 231 are provided on the left and right sides of the main frame 110, respectively. The rotating rod 231 includes a central portion 232 having no threads formed on the outer circumferential surface thereof and a first threaded portion 233 and a second threaded portion 234 having threads formed on both sides of the central portion 232 The first threaded portion 233 and the second threaded portion 234 are formed to have different directions of threading.

An idle bracket 235 is formed in the main frame 110 of the first electrode unit 100a so as to allow the rotation rod 231 to pass through the rotation rod 231, The main body 110 of the second electrode unit 100b and the third electrode unit 100c are provided with screw threads 234a and 234b respectively screwed to the first screw portion 233 and the second screw portion 234 of the rotating rod 231, A first rod bracket 236 and a second rod bracket 237 are provided.

The rod rotation driving unit is for rotating the rotation rod 231 in one direction or the other direction and the first electrode unit 100a and the second electrode unit 100b on both sides of the first electrode unit 100a A rod drive sprocket 241 provided between the first electrode unit 100a and the third electrode unit 100c and between the first electrode unit 100a and the third electrode unit 100c; And a motor (not shown). When the rod driving motor is driven for forward rotation or reverse rotation, the rotary rod 231 can rotate forward or reverse.

When the rotary rod 231 is rotated in one direction or the other direction by the rod rotation driving unit, the threads formed in the first screw portion 233 and the second screw portion 234 are formed in opposite directions to each other, The two-electrode unit 100b and the third electrode unit 100c run in mutually opposite directions. That is, for example, when the rotary rod 231 rotates in one direction, the second electrode unit 100b and the third electrode unit 100c move toward the first electrode unit 100a, respectively, The spacing between them becomes narrower. When the rotary rod 231 rotates in the other direction, the second electrode unit 100b and the third electrode unit 100c move in the direction away from the first electrode unit 100a, ) Are spaced apart from each other.

While the second electrode unit 100b and the third electrode unit 100c are running, the first electrode unit 100a is connected to the idle bracket 235 at the central portion 232 of the rotating rod 231, So that the rotary rod 231 idles to maintain the installed position without rotation.

The electrode interval adjusting unit 200 according to the present invention is configured such that the second electrode unit 100b and the third electrode unit 100c are mutually connected by the rotating rod 231 having threads in mutually opposite directions and the rod brackets screwed thereto, As the motor runs in the opposite direction, the mutual spacing distance becomes narrower or narrower and the amount of current can be controlled.

The first electrode unit 100a at the center has no positional shift and the second electrode unit 100b and the third electrode unit 100c move in the left and right directions, The electrode unit 100 is fixed and only the other electrode unit 100 is moved or the electrode units 100 and 100 are fixed to each other when the electrode units 100 are two. ) May be moved in opposite directions to each other and the gap may be adjusted.

In addition, the caterpillar type electrolytic apparatus 10 of the present invention may further include a moving unit 300 for moving the main frame 110 up and down or left and right.

The moving unit 300 includes a base 310 installed at an upper portion of the treatment tank 5, a lifting unit 320 installed vertically up and down on the base 310, A horizontal moving part 340 and a horizontal moving part 340 movably installed along the horizontal direction to the elevating part 320 to the elevating part 320, And a horizontal driving unit 350 for moving the horizontal driving unit 350 in the horizontal direction.

The rail 210 may be installed at the upper end of the horizontal movement unit 340.

When the height of the electrode unit 100 needs to be adjusted according to the inflow amount of the wastewater flowing into the treatment tank 5, the moving unit 300 controls the height of the electrode unit 100, The lifting and lowering unit 320 can be moved up and down through the lifting and lowering driving unit 330.

When it is necessary to adjust the installation position of the electrode unit 100 to be electrolyzed along the horizontal direction, the horizontal movement unit 340 may be moved to move the horizontal movement unit 340 to adjust the position.

In this embodiment, the horizontal movement is formed only in one direction. However, the horizontal movement unit 340 may be further provided with a horizontal movement unit 340 and an auxiliary movement unit that crosses the movement direction, You may.

The caterpillar electrolytic apparatus 10 of the present invention described above can maintain the amount of current that can be efficiently electrolyzed even if the state of the wastewater or the decomposition conditions are changed since the electrode units 100 can adjust the mutual separation distance So that the electrolysis efficiency can be maximized.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

1: Wastewater treatment system
2: primary clarifier 3: anaerobic tank
4: Anoxic tank 5: Treatment tank
6: Settling tank
10: Caterpillar type electrolytic apparatus
100: electrode unit 110: main frame
111: Rod through hole 120: Drive sprocket
130: auxiliary frame 140: driven sprocket
150: chain electrode body 160: electrode driver
200: electrode interval adjusting unit 210:
220: running part 230: frame driving part
231: rotation rod 232:
233: first screw portion 234: second screw portion
235: Idle bracket 236: First rod bracket
237: second rod bracket 241: rod drive sprocket
300: mobile unit 310: base unit
320: ascending / descending part 330:
340: horizontal moving part 350: horizontal driving part

Claims (7)

At least two electrode units installed in a treatment tank containing treated water for electrolysis of wastewater;
And an electrode interval adjusting unit for adjusting a distance between the electrode units to maintain the current and the voltage set according to the operating condition,
The electrode unit includes a main frame formed to be able to be placed in the treatment tank,
A drive sprocket provided in the main frame,
An electrode driver installed on the main frame to rotate the drive sprocket;
And a chain electrode body which is formed to have a closed loop so as to be rotatably driven by the drive sprocket and extends downward of the main frame so as to partially rotate in the treatment water in the treatment tank. Decomposition device.
The method according to claim 1,
Wherein the electrode interval adjusting unit comprises: a rail portion extending in a moving direction in which the electrode unit moves,
A traveling section installed at a lower portion of the main frame and capable of traveling along the rail section,
And a frame driving part for moving the main frame along the rail part to adjust the distance between the electrode units.
3. The method of claim 2,
The frame driving unit includes: a rotating rod extending through the main frames along a direction parallel to the rail, the rotating rod having a thread formed on an outer circumferential surface thereof;
A rod bracket installed on the main frame and having a thread corresponding to a thread of the rotating rod on an inner circumferential surface so as to be screwed with the rotating rod;
And a rod rotation driving unit for rotating the rotating rod in one direction or another direction.
The method of claim 3,
Wherein the electrode unit includes a first electrode unit and a second electrode unit and a third electrode unit provided respectively in front of and behind the first electrode unit along the extension direction of the rail part,
Wherein the rotary rod of the frame driving unit includes a central portion in which no thread is formed and a first screw portion and a second screw portion formed on both sides of the central portion,
The first electrode unit includes an idle bracket through which a central portion of the rotating rod passes,
Wherein a first rod bracket and a second rod bracket are formed on the main frame of the second electrode unit and the third electrode unit so that the first screw portion and the second screw portion can be screwed, respectively, Device.
The method according to claim 1,
An elevating driving part for elevating and lowering the elevating part with respect to the base part; and a moving part for moving the elevating part in a horizontal direction And a horizontal driving unit for moving the horizontal moving unit in a horizontal direction with respect to the elevating unit,
Wherein the electrode interval adjusting unit is formed to be provided in the horizontal driving unit of the mobile unit.
1) performing a blowing process of the wastewater to be treated in the anaerobic tank;
2) performing a denitrification process on the wastewater to be treated through the anaerobic tank in an anoxic tank;
3) introducing treated water treated in the anoxic tank into a treatment tank for aerobic electrolytic reaction, and performing a process of reacting phosphate ions, nitrified products and organic substances in the treated water with iron ions formed by electrolysis;
4) introducing treated water treated in the treatment tank into a settling tank to precipitate and remove reaction products of iron ions, phosphate and organic matter,
Wherein the treatment tank includes the caterpillar type electrolytic apparatus according to any one of claims 1 to 5 for electrolysis.
The method according to claim 6,
Wherein the denitrification process of the anoxic tank is performed through oxidation and reduction by a mixed microorganism of Nitrosomonas, Nitrosococcus, Nitrobacter, and dinitrobacteria.
KR1020160018248A 2016-02-17 2016-02-17 caterpillar type electrolysis apparatus and Wastewater treat method using it KR20170096701A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190087203A (en) 2018-01-16 2019-07-24 주식회사 바우텍 apparatys to dispose water by electrolyzation
KR20190087161A (en) 2018-01-16 2019-07-24 정우환경기술(주) method to dispose water by electrolyzation
KR102190476B1 (en) * 2020-06-10 2020-12-11 이정원 water treating apparatus using electrode of caterpillar type

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190087203A (en) 2018-01-16 2019-07-24 주식회사 바우텍 apparatys to dispose water by electrolyzation
KR20190087161A (en) 2018-01-16 2019-07-24 정우환경기술(주) method to dispose water by electrolyzation
KR102190476B1 (en) * 2020-06-10 2020-12-11 이정원 water treating apparatus using electrode of caterpillar type

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