KR200287526Y1 - Apparatus to dispose dirty and waste water by electrolyzation - Google Patents

Abstract

Disclosed is the wastewater treatment using electrolysis to remove the scale attached to the cathode as well as to selectively change the processing capacity according to the amount of waste water by installing the electrode detachably multi-stage in the electrolytic cell in the vertical direction Relates to a device.

The present invention provides an electrode mounting plate in the middle of the electrolytic cell, and attaches a plurality of electrode units detachably to the electrode mounting plate. The electrode units are each provided with a pair of support plates having protrusions projecting outward. Each protrusion is placed on the electrode mounting plate to be fastened, and the plate-shaped positive electrode and the negative electrode pair are vertically positioned between each supporting plate in a multi-stage manner, and each electrode is formed in a plate-shaped upper left and lower right or left side. A ground terminal is formed to protrude from the lower part and the upper right part, and the gap retaining pieces having a "??" shape on the side are horizontally disposed at the left and right ends between the anode and cathode electrodes and between the anode and cathode electrode pairs. The support plate, the gap retaining piece, and each electrode are connected to the bolt through the respective fastening holes so as to fix each electrode while the same poles are energized. The Trojan will hayeoseo fastening.

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, to increase the treatment efficiency by increasing the reaction time of raw water by installing a multi-stage electrode having a plurality of through holes in the vertical direction in the electrolytic cell, the amount of wastewater introduced It is possible to selectively change the processing capacity according to, and to smoothly remove the scale is reduced is coated on the cathode.

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 present invention proposes to purify the organic matter, which is present as an ionic substance, by oxidation, reduction and decomposition reactions to be converted to metal ions, gases, insoluble substances, and the like. In -7808, a plurality of electrode units are detachably fixed to an electrode seating plate installed horizontally in an electrolytic cell, wherein the electrode unit is a positive electrode and a stainless electrode formed by coating platinum on a titanium alloy in which a plurality of holes are offset from each other. The cathode electrode is formed in the horizontal direction spaced apart by a predetermined interval by the ring-shaped spacer, such Is disclosed a waste water treatment apparatus using the electrolytic electrode configured to be installed is the multi-stage power application, such as poles to each other bar.

On the other hand, when the electrode is immersed in an aqueous electrolyte solution and a direct current flows, the ions in the aqueous solution move toward the oppositely charged electrode, causing a redox reaction. Since the metal component has a positive charge, it is attracted to the cathode and causes a reduction reaction. It forms a scale in the gas, and since the gas component has a negative charge, it is attracted to the anode and oxidizes and is released into the atmosphere.

Therefore, if the electrolysis is continued for a long time, the reduced metal continues to accumulate in the cathode, and the gap between the anode electrode and the cathode electrode is narrowed, thereby increasing the electricity consumption, whereas the electrolysis efficiency is deteriorated. A reverse voltage is applied to the cathode electrode and the anode electrode for a few seconds to remove the scale accumulated on the surface. In this case, the metal material adhering to the cathode is precipitated and separated by its own weight in the process of moving toward the anode electrode. Can be.

By the way, in the wastewater treatment apparatus using electrolysis according to Utility Model Application No. 2002-7808, since the electrode structure is provided in multiple stages in the horizontal direction, the electrodes are supported by a ring-shaped gap retainer. Even if a reverse voltage is applied to remove the scale attached to the cathode electrode, the metal does not escape to the outside of the electrode unit, but stays inside it, and has a structure that is inappropriate to remove the scale by sticking to the cathode electrode again. .

The present invention has been proposed in view of this point, and a plurality of electrode units are detachably installed on the electrode mounting plate of the electrolytic cell, and the electrode unit has a plurality of vertical and vertical holes such that the cathode electrode and the cathode electrode are crossed with each other. It has a structure that is erected in the direction, and the electrodes are energized with each other, so that the number of electrode units or the number of electrodes can be easily changed according to the treatment flow rate, so that the efficiency of waste water treatment can be increased. Favorable for replacement and repair, the raw water passes through the gaps between the displaced through holes of each electrode, improving the processing efficiency, and when the reverse voltage is applied to remove the scale attached to the negative electrode, the metal is removed from the negative electrode. Electric charges that can fall off and easily settle into the lower part of the electrolytic cell by their own weight It is to provide a waste water treatment apparatus using the mood.

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

2 is a cross-sectional view of the electrode unit according to the present invention.

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

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

1: screen 2: water tank 3: electrolytic cell

4: Floating tank 5: Filtration tank 6: Discharge water tank

7: treatment water supply pump 8 V type flow meter 9: diffuser

10 air compressor 11 motor 12 concentration tank

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

303a, 303c, 304b, 305b, 306a: Fastener 303b: Protrusion

304: anode electrode 304a, 305a: through hole 304c, 305c: ground terminal

305: cathode electrode 306: spacing 307,309 volts

308: Nut

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, and 12 is a concentration tank for concentrating sludge components.

At this time, the electrolytic cell 3 is installed in the middle portion of the electrode mounting plate 301 in the horizontal direction, as shown in Figures 2 and 3, and a plurality of electrode units 302 detachably fixed to the electrode mounting plate 301. The electrode unit 302 is provided with a pair of support plates 303 each having a protrusion 303b having a fastening hole 303a protruded outwardly and having three fastening holes 303c formed on both left and right sides, respectively. Each protrusion 303b is mounted on the electrode mounting plate 301 to be fastened, and a plurality of through holes 304a and 305a are alternately formed between the support plates 303 to form a plate-shaped positive electrode 304 and a negative electrode. (305) The pair is positioned in multiple stages to be erected in the vertical direction, and the anode electrode 304 protrudes from each of the upper and lower left portions of the plate-shaped body, and forms a ground terminal 304c having fastening holes 304b, respectively, and a cathode electrode. 305 is a ground terminal 305c having a fastening hole 305b from the upper right and lower left portions of the plate-shaped body; They are formed by protruding from each other, and the left and right sides of the anode electrode 304 and the cathode electrode 305 and between the pair of the anode electrode 304 and the cathode electrode 305 are "??"-shaped on the side surfaces, The spacers 306 having the fastening holes 306a are horizontally interposed at the left and right ends, respectively, and the support plates 303 and the gap maintaining pieces are formed so that the electrodes 304 and 305 can be fixed while energizing the same poles. 306 and each of the electrodes 304 and 305 by fastening the six bolts 307 and the nuts 308 through the respective fastening holes 303c, 304b, 305b and 306a. ) Is made of a conductor so that power can be applied to each electrode 304, 305, and the spacer 306 is formed of a non-conductor such that the electrodes 304, 305 are not energized.

In addition, the cathode electrode 305 is a stainless electrode, the anode electrode 304 is a platinum-coated electrode of titanium alloy in order to ensure the continuous processing performance while extending the life of each electrode 304, 305, Each support plate 303 is fastened by a bolt 309 in a state where it is placed on the electrode mounting plate 301 through the protrusion 303b.

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), and the predetermined amount flows into the electrolytic cell (3) through the V-type flowmeter (8). When the raw water flows into the electrolytic cell 3, the raw water is contacted with a plurality of electrode units 302 seated on the electrode mounting plate 301 of the electrolytic cell 3. The electrode unit 302 has a positive electrode 304 and a negative electrode. Since the electrode 305 is installed to stand in the vertical direction, the raw water rises through the space between the electrodes 304 and 305, and each of the electrodes 304 and 305 has its through holes 304a and 305a. Since the raw water is deviated from each other, the flow rate of the raw water is reduced in the course of zigzag passing through the through holes 304a and 305a of the anode electrode 304 and the cathode electrode 305, thereby increasing the reaction speed.

In addition, when a current is supplied to each of the electrodes 304 and 305, when the raw water meets the raw water, a reduction action occurs at the cathode electrode 305 and an oxidation action occurs at the anode electrode 304 to precipitate metal ions. In other words, the redox effect of inorganic matter is generated to be decomposed into gas or converted to insoluble material and removed.

However, when each electrode, which is a main body for electrolyzing wastewater, is made of a soluble material such as iron or aluminum, the anode 304 is eluted during electrolysis, and thus has a mechanism for causing an agglomeration reaction. Bar 305 is farther away, and the treatment efficiency is reduced. In this design, the anode electrode 304 is made of a platinum coating on a titanium alloy, and the cathode electrode 305 is made of stainless steel. Since each of the electrodes 304 and 305 is insoluble, its performance can be maintained even after using for a long time.

The electrolyzed 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 concentration tank 12 for concentration, and the settling tank or flotation tank 4 is removed. The treated water is temporarily stored in the discharge water tank 6 in the final filtered state while passing through the filtration tank 5 having the carbon filter or the sand filter, and discharged to complete the treatment process.

On the other hand, the metal component generated by the reduction action in the cathode electrode 305 is attached to the surface of the cathode electrode 305 to form a scale, if the scale is continuously stacked between each electrode 304, 305 between As the interval is narrowed, the electricity consumption is increased, while the electrolysis efficiency is lowered. In order to solve this problem, a negative voltage is applied to the cathode electrode 305 and the anode electrode 304 for a few seconds. It has been described above that the metal material adhering to 305 is moved to the anode electrode 304 to be precipitated by its own weight and removed.

At this time, the positive electrode 304 and the negative electrode 305 according to the present invention is installed in the vertical direction while maintaining a certain distance by the gap retaining piece 306, the positive electrode 304 and the negative electrode 305 The upper and lower spaces are formed between the pair of the anode electrode 304 and the cathode electrode 305 to apply a reverse voltage to the cathode electrode 304 and the cathode electrode 305 so as to be different from the cathode electrode 305. When the attached scale is moved downward in the downward direction by its own weight while moving in the direction of the anode electrode 304, the space may be smoothly discharged out of the electrode unit 302 and settled below.

As described above, the present invention is provided with a plurality of removable electrode units in the electrolytic cell, and each electrode unit is installed so that the electrodes are erected in the vertical direction, and the through-holes of each electrode are arranged to be offset from each other, so As a result, the number of electrode units or the number of electrodes can be easily changed, and the flow rate of the raw water can be reduced by zigzag through the holes of each electrode, and the reaction speed can be increased, thereby increasing the processing efficiency. When the scale attached to the negative electrode is removed by applying a reverse voltage to the positive electrode and the positive electrode, these metal materials can easily escape to the outside of the electrode unit through the space between the negative electrode and the positive electrode and between the negative electrode and the positive electrode pair. It is easy to remove the scale, which has a very useful effect to extend the life of the electrode. Will.

Claims (1)

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, 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 middle part of 3), the electrode mounting plate 301 is installed in the horizontal direction, and a plurality of electrode units 302 are detachably fixed to the electrode seating plate 301 in a wastewater treatment apparatus using an electrolysis device. In The electrode unit 302 is provided with a pair of supporting plates 303 each having a protrusion 303b having a fastening hole 303a protruded outwardly and having three fastening holes 303c formed on both left and right sides thereof, respectively. The projection 303b is mounted on the electrode mounting plate 301 to be fastened, and a plate-shaped anode electrode 304 and a cathode electrode in which a plurality of through holes 304a and 305a are alternately interposed between the support plates 303. (305) The pair is placed in a multi-stage to stand in the vertical direction, each electrode 304, 305 has a fastening hole (304b) (305b) from the upper left and lower right or the lower left and upper right of the plate-shaped body The ground terminals 304c and 305c are formed to protrude from each other, and the left and right sides of the anode electrode 304 and the cathode electrode 305 and between the pair of the anode electrode 304 and the cathode electrode 305 are formed on the side surfaces thereof. Horizontally spaced pieces 306 having a " " shape and fastening holes 306a formed on respective surfaces thereof. Each of the support plates 303, the spacer 306, and the electrodes 304 and 305 are respectively interposed therebetween so as to fix the electrodes 304 and 305 while energizing the same poles. The wastewater treatment apparatus using electrolysis, characterized in that the fastening hole (303c) (304b) (305b) (306a) through the bolt 307 and the nut (308).