KR200279796Y1 - Apparatus to dispose dirty and waste water by electrolyzation - Google Patents

Abstract

Disclosed in the present invention is to install a removable electrode in a horizontal direction in the electrolytic cell in a horizontal direction to increase the reaction time of the raw water to increase the treatment efficiency, and to selectively change the treatment capacity according to the amount of waste water introduced The present invention relates to a wastewater treatment apparatus using decomposition.

The present invention is to install an electrode mounting plate in the middle of the electrolytic cell, and a plurality of electrode units are detachably formed thereon, the electrode unit is a mounting member mounted on the electrode mounting plate and fixed, and the middle in the continuous Protrusions are formed so that the electrode mounting grooves are formed on the upper side and the lower side of the one side relative to the protrusions so that the electrode gap retaining ring positioned at the bottom of the seating member and the electrode seating grooves of the electrode gap retaining ring are horizontally inserted, respectively. And the inside of the body is spaced apart by a predetermined distance from the protrusion of the electrode gap retaining ring, the body portion is arranged with a plurality of through holes are offset from each other, the electrode of the anode electrode and cathode electrode to electrolyze the raw water, the electrode gap maintaining ring and the electrode Spaced to maintain the spacing when a plurality of the laminated, and the air tightly located in the lower portion of the electrode spacing ring Compressed air supply pipe is installed at the side to provide compressed air, a screen installed at the lower part of the compressed air unit to filter foreign substances, and a power supply bolt connecting the lead portions of each electrode to the same poles. .

Description

Wastewater treatment apparatus using electrolysis {Apparatus to dispose dirty and waste water by electrolyzation}

The present invention relates to a wastewater treatment apparatus using electrolysis, and more particularly, by installing a detachable electrode having a plurality of through-holes in a horizontal direction in the electrolytic cell to increase the reaction time of the raw water to increase the treatment efficiency, It is possible to selectively change the processing capacity according to the quantity.

As is well known, with the development of the industry, the water quality of rivers and lakes is gradually contaminated by the sewage of sewage and large factories, and when these water pollutions are left, the odor becomes severe and there are many pests that cause infectious diseases. Of course, the biological oxygen demand will increase the dead fish can not live, the water supply is not suitable for tap water is serious, the agricultural water will not be suitable for agriculture will be increased.

Recognizing the necessity of improving the water quality, the proposed electrolysis device arranges a plurality of electrodes made of iron or aluminum having positive and negative poles in an electrolytic cell and passes the waste water through the wastewater. The organic material, which is present as an ionic substance, is subjected to oxidation and reduction reactions and decomposition reactions so as to be converted into metal ions, gases, and insoluble substances, and the like is purified to remove the present inventors. In the middle of the electrolytic cell to form an electrode seating plate having a plurality of cartridge settled grooves, a flange formed on the outside of the upper end and a water through hole in the center of the lower end of the positive and negative poles in the cartridge Are inserted into the cartridge settled grooves of the electrode mounting plate with the platinum electrodes stored therein, and the poles of the electrodes There over which the standing of the electrolytic apparatus bar.

However, the electrolysis device according to this Utility Model No. 252221 has the advantage of selecting the number of electrode units according to the amount of raw water introduced by applying the electrode in a cartridge type, but since the electrodes are arranged in the vertical direction, raw water is introduced. As the reaction time is shortened while passing between the electrodes, it is difficult to expect a perfect treatment effect.

The present invention has been proposed in view of this point, and includes an electrode seating plate in the middle of the electrolytic cell, and a plurality of electrode units are detachably installed on the seating plate in a cartridge type, but the electrode unit has a plurality of through holes. It is possible to easily change the number of electrode units according to the processing flow rate by arranging the electrodes in a zigzag layer and installing a pair of the anode and the cathode in the horizontal direction only through the bottom and supplying oxygen and ozone by installing an aeration tank at the bottom of the electrode. Of course, it is advantageous to replace and repair the electrode, the purpose is to provide a waste water treatment apparatus using electrolysis to improve the treatment efficiency by increasing the reaction time while passing a long time between each electrode when raw water is introduced.

1 is a block diagram of a wastewater treatment system applying the electrolysis device according to the present invention.

Figure 2 is a cross-sectional view of the electrolysis device according to the present invention.

Figure 3 is an exploded perspective view of the electrode unit of the electrolysis device according to the present invention.

*** Explanation of symbols for main parts of drawing ***

1: screen 2: water tank 3: electrolytic cell

4: sedimentation or flotation tank 5: filtration tank 6: discharge tank

7,13: pump 8: V-type flow meter 9: diffuser

10: air compressor 11,316: motor 12: thickening tank

301: mounting plate 302: electrode unit 303: mounting member

304: electrode gap retaining ring 305,305 ': electrode 306: space ring

307: compressed air unit 308: screen cap 309: screen

310,312: Nut 311,311 ': Power supply bolt 313,313': Electrode fixing bolt

314: baffle plate 315: jet nozzle 317: water mixing wing

318: sedimentation tank

Hereinafter, the present invention will be embodied according to the present embodiment.

1 is an example that the wastewater treatment apparatus using electrolysis according to the present invention is applied in connection with a general biological treatment apparatus, looking at its configuration screen (1) for filtering foreign substances of raw water, temporarily storing the introduced raw water While collecting aeration to maintain a constant reaction concentration (2), an electrolytic bath (3) for electrolytic treatment of the incoming raw water, a precipitation or flotation tank (4) for removing sludge components from the treated water, the treatment A filtration tank 5 for final filtration of water and a discharge tank 6 for temporarily storing the treated water and then discharging it.

In the drawing, reference numeral 7 is a treatment water supply pump, 8 is a V-type flow meter for introducing a predetermined amount of raw water introduced through the treatment water supply pump 7 to the next stage, 9 is an diffuser that performs aeration, 10 is an air compressor for providing compressed air to the diffuser 9, 11 is a scraper driving motor, 12 is a concentration tank for condensing the sludge component, 13 is a spray nozzle which will describe the water of the discharge tank 6 later. Indicates a pump to branch.

At this time, the electrolytic cell 3 is a plurality of electrode units 302 is detachably installed on the electrode mounting plate 301 installed in the horizontal direction in the middle portion as shown in Figs. 2 and 3, the electrode unit 302 is a flange A ring-shaped seating member 303 is formed to be mounted and fixed on the electrode seating plate 301, and is positioned below the seating member 303, and a protrusion 304a is formed inward at an intermediate portion thereof. An electrode gap retaining ring 304 having electrode seating grooves 304b and 304b 'formed at an upper portion and an opposite lower portion with respect to 304a, respectively, and fixing portions 305a and 305a' and a larger body portion. 305b and 305b 'so that the fixing portions 305a and 305a' are fitted into the electrode mounting grooves 304b and 304b 'of the electrode spacing ring 304 in the horizontal direction, respectively, and are drawn out to the outside. A predetermined interval is spaced apart by the protrusion 304a of the gap retaining ring 304, and a plurality of through holes 305c and 305c 'are displaced in the body parts 305b and 305b'. A spatula-shaped electrode formed of a positive electrode 305 and a negative electrode 305 'which are each formed to electrolyze raw water, and a plurality of electrode gap retaining rings 304 and electrodes 305 and 305' are stacked. The compressed air unit 307, which is airtightly positioned at the lower portion of the electrode gap retaining ring 304 and provided with compressed air supply pipe 307a on one side wall, maintains the space therebetween. And a screen 309 fixed to the lower portion of the compressed air unit 307 through the screen cap 308 to filter foreign matters from the raw water, and the nut 310 of the outer lead portion of each electrode 305 and 305 '. The two poles are connected in the vertical direction through the same poles and the upper ends thereof are drawn out to the upper side of the seating member 303 to apply power to each of the electrodes 305 and 305 ', respectively. Through the screen cap 308, the compressed air unit 307, the electrode gap holding ring 304, the space ring 306, and the electrodes 305 and 305 '. It consists of more than seating member 303 two electrode fixing bolt (313) (313 ') which is fixed respectively via a nut 312 on.

In addition, the cathode electrode 305 'becomes a stainless electrode, and the anode electrode 305 is a platinum-coated electrode coated with a titanium alloy in order to ensure continuous processing performance while extending the life of each electrode 305 and 305'. At the inlet of the electrolyzer 3, a baffle plate 314 is installed in the vertical direction to prevent vortices when the raw water is introduced, and a part of the treated water collected in the discharge tank 6 is injected and sprayed into the electrolyzer 3. A spray nozzle 315 is installed at the upper side of the electrolyzer 3 so as to remove bubbles generated during the electrolysis process of the electrode), and a water mixture is mixed with a motor 316 for mixing the treated water at the end of the electrolyzer 3. A water mixing device is formed of a wing 317, the lower part of the electrolytic cell 3 is formed integrally with the settling tank 318 so as to be capable of electrolysis and at the same time, the power supply bolts (311, 311 ') Power supply terminals 319 and 319 'are respectively formed at the upper end of the terminal.

In addition, the electrode fixing bolt fastening hole 321 to which the power supply bolt passing hole 320 and the electrode fixing bolts 313 and 313 ′ through which the power applying bolts 311 and 311 ′ pass are fastened to the seating member 303. ), A fastening bolt fastening hole 323 to which the fastening bolt 322 for coupling with the seating plate 301 is formed, respectively, an electrode gap retaining ring 304, a space ring 306, and a compressed air unit ( 307 and the screen cap 308, the electrode fixing bolt through hole 324 through which the electrode fixing bolts (313, 313 ') can pass, respectively, each electrode 305, 305' is provided with a power supply bolt. Power supply bolt through hole 325 through which (311) (311 ') can pass is formed.

The wastewater treatment apparatus using electrolysis according to the present invention configured as described above acts as follows.

First, as the wastewater is introduced through the screen 1, foreign substances and solid substances contained therein may be filtered out and temporarily stored in the sump 2.

In the sump (2), the compressed air is sent from the air compressor (10) to the diffuser (9) for smooth mixing of the raw water. When the compressed air is ejected from the diffuser (9) and aerated, the organic and inorganic substances in the raw water are collected. By mixing with, it is possible to maintain a constant reaction concentration.

When a certain flow rate is reached in the sump (2), the treated water supply pump (7) is operated to send raw water to the V-type flowmeter (8), which is introduced into the electrolytic cell (3) by a predetermined amount through the V-type flowmeter (8). do.

At this time, when a voltage is applied to the electrolyzer 3, the current also increases. Oxygen is generated at the anode 305 and hydrogen is generated at the cathode 305 ', and reducing is performed at the cathode 305' when the current is increased. In the oxidation occurs, and the secondary reaction occurs to precipitate metal ions, and the redox effect of organic and inorganic materials occurs to decompose or convert to insoluble materials to remove.

The electrolyzed treated water is mixed at about 10 to 30 RPM through a water mixing device consisting of a motor 316 and a water mixing wing 317 in a mixing section located at the end of the electrolytic cell 3, and the mixing is completed. The treated water removes the flocculated floc through the settling tank or flotation tank 4 according to the characteristics of the material, and the removed sludge is sent to the thickening tank 12 to be concentrated and treated in the settling tank or flotation tank 4. The water is temporarily stored in the discharge tank 6 in the final filtered state while passing through the filter tank 5 having the carbon filter or the sand filter.

Most of the treated water stored in the discharge tank 6 is discharged to complete the treatment process, a part of which is branched to the injection nozzle 315 by the pump 13 and sprayed from the upper part of the electrolytic cell 3 by the electrolytic cell 3 To remove bubbles caused by the gas generated during the electrolysis of.

The above described the overall system flow of the wastewater treatment apparatus using electrolysis according to the present invention, hereinafter will be described in detail with respect to the action of the electrolytic cell that makes up the features of the present invention.

When raw water flows into the electrolyzer 3, it is guided downward by the baffle plate 314, and rises through the baffle plate 314 and the electrolyzer 3 at the lower side of the electrolyzer 3, Is raised to meet a plurality of electrode units 302 which are seated on the seating plate 301, the electrode unit 302 has a structure in which water can only flow into the lower portion so that the raw water is the lower portion of the electrode unit 302 Large foreign matter contained in the inside of the electrode 305 and 305 'is filtered through the screen 309, and all the electrode units 302 are stacked with multiple layers of electrodes 305 and 305'. Since the through holes 305c and 305c 'of the positive electrode 305 and the negative electrode 305' constituting the electrodes 305 and 305 'are disposed to be offset from each other, the raw water is the negative electrode 305' and the positive electrode 305. While repeating the process of passing through the through holes 305c and 305c 'in a zigzag manner, the flow rate may be reduced to increase the reaction speed.

In addition, when the raw water meets the electrodes 305 and 305 'while current is supplied to the cathodes 305' and anodes 305 constituting the electrodes 305 and 305 ', oxygen, Hydrogen is generated at the cathode 305 ', increasing the current causes reduction at the cathode 305', oxidation at the anode 305, and secondary reactions to precipitate metal ions. Redox reaction occurs and is decomposed into gas or converted into insoluble material and removed.

However, when the electrodes 305 and 305 ', which are the main agents for electrolyzing the waste water, are made of a soluble material such as iron or aluminum, the anode electrode 305 is eluted during electrolysis to have a mechanism for causing an agglomeration reaction. When this elapses, the spacing between the electrodes 305 and 305 'becomes farther, and the treatment efficiency is reduced. In this design, the anode electrode 305 is made of a platinum coating on a titanium alloy, and the cathode electrode ( 305 ') is made of stainless steel, and each of the electrodes 305 and 305' is insoluble, and thus its performance can be continuously maintained even for a long time.

In addition, when the waste water is electrolyzed through the electrodes 305 and 305 ', the compressed air unit 307 located below the electrode unit 302 periodically supplies ozone gas together with the compressed air. In fluorine (F), it is applied to various water treatments that decompose organic matters with strong oxidizing power, sterilize, discolor, remove odors, and improve BOD and COD. Unlike chlorine and the like after the reaction, it does not leave any smell or color and chemical properties, so it does not cause secondary pollution, so it can play a secondary role in the electrolysis through each electrode.

Through this process, the purified water flows into the sedimentation tank or flotation tank 4, which is mixed by the water mixing device consisting of the water mixing wing 317 and the motor 316 located at the end of the electrolytic cell 3. The precipitate may be precipitated in the precipitation tank 318 integrally formed in the electrolytic cell 3 and then transferred to the concentration tank 12.

As described above, the present invention is provided with a plurality of removable electrode units in the electrolytic cell, each electrode unit is stacked in a plurality of layers in the horizontal direction, the anode and the cathode constituting each electrode is arranged so as to be offset from each other inflow The number of electrode units or the number of electrodes can be easily changed according to the amount of wastewater treated, and the flow rate of the raw water can be reduced by zigzag through the through holes of the cathode and anode, and the reaction speed can be increased, thereby improving the treatment efficiency. It can be significantly increased, and maintenance becomes very simple. In addition, the installation is simple and the installation area can be minimized, so that not only the above-described biological treatment device but also existing facilities or new facilities can be applied to all, so that the scope of application is widened.

Claims (5)

Screen (1) for filtering foreign matters of raw water, a collecting tank (2) to maintain a constant reaction concentration by performing aeration while temporarily storing the incoming raw water, an electrolytic cell (3) for electrolytic treatment of the incoming raw water, An electrolysis apparatus including a sedimentation or flotation tank (4) for removing sludge from the treated water, a filtration tank (5) for final filtration of the treated water, and a discharge tank (6) for temporarily storing and discharging the treated water. In the wastewater treatment device used, In the electrolyzer 3, a plurality of electrode units 302 are detachably fixed to the electrode mounting plate 301 installed in the horizontal direction in the middle portion thereof; The electrode unit 302 is a ring-shaped mounting member 303 is formed with a flange (303a) is mounted on the electrode mounting plate 301 and fixed; Protruding portion 304a is formed continuously in the middle portion, and electrode mounting grooves 304b and 304b 'are respectively formed at one upper side and the lower side opposite to the protruding portion 304a to form the mounting member 303. An electrode gap retaining ring 304 positioned below; The fixing portions 305a and 305a 'and the body portions 305b and 305b' having a larger width are provided so that the fixing portions 305a and 305a 'form the electrode seating grooves 304b of the electrode gap maintaining ring 304. ) Is inserted into the horizontal direction in the horizontal direction (304b ') and drawn out to the outside, and is spaced a predetermined interval by the protrusion (304a) of the electrode gap retaining ring 304 on the inside and a plurality of through holes in the body (305b) (305b') A spatula-shaped electrode (305c) (305c ') disposed to be offset from each other to constitute an electrolysis of raw water; an electrode spacing ring (304) and an electrode (305); A space ring 306 which maintains a spacing when a plurality of 305's are stacked; A compressed air unit 307, which is airtightly positioned below the electrode gap maintaining ring 304, is provided with a compressed air supply pipe 307a on one side wall to provide compressed air; A screen 309 fixed to the lower portion of the compressed air unit 307 through a screen cap 308 to filter foreign substances from raw water; The outer leads of the electrodes 305 and 305 'are connected to each other in the same direction in the vertical direction, and an upper end thereof is drawn out to an upper side of the seating member 303 to supply power to the electrodes 305 and 305'. Wastewater treatment apparatus using electrolysis, characterized in that it comprises a power supply bolt (311) (311 ') for applying each. The method of claim 1, The mounting member 303 is sequentially passed through the screen cap 308, the compressed air unit 307, the electrode gap retaining ring 304, the space ring 306, the electrode 305, 305 '. Electrode fixing bolts (313) (313 ') to be fixed to each of the wastewater treatment apparatus using electrolysis, characterized in that it further comprises. The method of claim 1, The inlet of the electrolytic cell (3) wastewater treatment apparatus using electrolysis, characterized in that the baffle plate (314) is installed in the vertical direction to prevent vortex during the inflow of raw water. The method of claim 1, An injection nozzle 315 is provided on the upper side of the electrolytic cell 3, and a part of the treated water collected in the discharge tank 6 is branched and sprayed onto the injection nozzle 315 to electrolyze the electrolytic cell 3. Wastewater treatment apparatus using electrolysis, characterized in that configured to remove bubbles generated in the process. The method of claim 1, Waste water treatment apparatus using electrolysis, characterized in that a water mixing device for mixing the treated water is formed at the end of the electrolytic cell (3).