KR20090003855A - The electrical reaction tank for wastewater treatment - Google Patents

Abstract

An electrical reactor for wastewater treatment improves water treatment efficiency by separating wastewater flown in the reactor and wastewater purified in the reactor from each other. An electrical reactor for wastewater treatment comprises: an outer case(100) having a wastewater inflow pipe(111) installed on one side of a top part thereof to flow wastewater in the outer case, a purified water outlet(121) formed on one side of a lateral face thereof to discharge purified wastewater to the outside, a suspended solid removing port(112) formed on an upper side of the lateral face thereof to discharge suspended solids, an exhaust port(113) formed on one side of the top part thereof to exhaust the exhaust gas, a chemical injection pipe(114) inserted into other side of the top part thereof to supply chemicals into the outer case, and a precipitate removing pipe(122) connected to a bottom part thereof to discharge precipitates; an inner case(200) which is installed in a state that an outer circumferential surface of a top part of the inner case is closely adhered to an inner circumferential surface of the outer case to vertically divide an inner space of the outer case into a suspended solid removing part and an electrolysis part(120a), in which electrode plates(210) are installed, of which a bottom face is connected to the precipitate removing pipe, and which has a plurality of inner case side holes(200a) formed in the bottom face and a lower portion of a sidewall thereof; and a wastewater distribution member(300) which has a shape that a plurality of pipes are connected to one another centering around a wastewater inlet as an axis to disperse wastewater flown in the inner case from the wastewater inflow pipe, and in which a plurality of discharge holes(310) are formed in each of the pipes.

Description

ELECTRICAL REACTION TANK FOR WASTEWATER TREATMENT

The present invention relates to an electric reactor for wastewater treatment.

Wastewater treatment methods include physical treatment, chemical treatment and biological treatment.

Physical treatment is processed by using processes such as separation, filtration, sedimentation, flotation, charity, and distillation, using physical characteristics such as size, specific gravity, and magnetic properties of wastewater. , Sedimentation basins, flotation sites, oil-water separators, and distillation units.

Recently, the automation technology of the existing facilities has been developed, and the electron beam acceleration technique has been developed as a new process.

Chemical treatment lowers the concentration of toxic substances and organic substances by chemical methods such as oxidation, reduction, neutralization, decomposition and adsorption of substances, and is mainly used as a pretreatment process of biological treatment.

Recently, ozone decomposing technology is becoming more common due to the strengthening of COD regulations, and the ozone is the second strongest oxidizing power among natural materials after fluorine. Reduce organic load.

The biological treatment method is the most active technology development field in recent years, and the main new process is the ultra-depth aeration method, the microbial method and the super-depth aeration method, the wastewater treatment method, the tower type wastewater treatment system, and the SBR (Sequencing Batch Reactor) activated sludge method. , Upflow Anaerobic Sludge Blanket (UASB), Wastewater Treatment by Anaerobic Filter (Fluidized Bed Reactor), VIP (Virginia Initiative Plant) Wastewater Treatment.

These physical, chemical and biological treatments can be applied to wastewater treatment processes by themselves, or they can be mixed with one another as part of the process.

It is divided into pretreatment and post-treatment according to the application location of wastewater treatment process.In case of pretreatment, it serves as an auxiliary role of activated sludge process and coagulation sedimentation method. Do it.

The present invention relates to an electric reactor using electrolysis among the various treatment methods described above.

Electrolysis is a method of purifying wastewater by causing an electrolysis reaction by supplying electrical energy to the wastewater mixed with an inorganic or organic electrolyte from the outside.

In this electrolysis reaction, high-speed oxidation and reduction are performed continuously, and oxidation, reduction, decomposition, and precipitation occur. At the interface between the electrode and the wastewater, the electrode reaction and the electrode reaction product react with the components in the wastewater, and the secondary reaction occurs simultaneously. The reaction product precipitates, adsorbs, floats, etc., thereby completely purifying and treating wastewater.

The technology related to the electric reaction vessel in which the electrode plate for electrolysis is installed is an 'electric reaction vessel for waste water treatment' that allows the sludge and foam generated from the waste water to be smoothly dispersed to the discharge port (Korea Utility Model Publication No. 20-0401310). ) Has been published.

However, the reaction tank as described above has a problem that the purified wastewater is mixed with the unpurified wastewater because the interior forms a space.

In addition, there is a problem in that the electrolytic reaction occurs, the pH concentration is changed to reduce the electrolysis efficiency.

In addition, the electrode plate is installed very close for the electrolysis reaction, there is a problem that the device is damaged due to a short circuit occurs when the deposit is accumulated in the lower slot.

In addition, since the hole is formed only in the lower part of the nozzle, wastewater is directly supplied to the electrode plate through the nozzle, so that some of the suspended matter may adhere to the electrode plate.

The present invention is to solve the above problems, the wastewater treatment electric reactor has an object to improve the water treatment efficiency by separating the wastewater introduced into the reactor and the wastewater purified from the reactor.

In addition, it has the purpose to improve the electrolysis efficiency by maintaining a constant PH concentration to continue the electrolysis reaction.

In addition, there is also an object to prevent the device malfunction occurs by the sediment between the installed electrode plate.

In addition, in forming the holes in the nozzle, there is also an object to form the upper and lower sides, and to form a large hole in the upper part to directly send the suspended solids in the wastewater to the upper part to reduce contact with the electrode plate side.

In addition, there is also an object to improve the electrolysis efficiency by increasing the amount of waste water is introduced to the electrode plate side in the form of a whirlpool to rotate the nozzle by rotating the nozzle.

In order to solve the above problems, the wastewater treatment electric reaction tank of the present invention has a wastewater inlet pipe installed at one upper side thereof so that the wastewater is introduced therein, and a purified water outlet is formed at one side thereof to purify the wastewater to the outside. It is to be discharged, the floating material removal port is formed on one side of the upper side to discharge the floating material, the exhaust port is formed on one side of the upper side to discharge the exhaust gas, and the chemical injection pipe is inserted into the other side An outer case which is configured to supply the medicine to the inside, and has a sediment removal pipe connected to the lower portion to discharge the sediment; The upper outer circumferential surface is installed in close contact with the inner circumferential surface of the outer case so as to divide the inner space of the outer case into the upper float removal portion and the lower electrolysis portion, the electrode plate is installed inside, and the bottom is connected to the deposit removal pipe, and the side wall An inner case having a plurality of holes formed in the lower and bottom surfaces thereof; It is installed at the bottom of the wastewater inlet pipe of the outer case and has a shape in which a plurality of pipes are coupled around the center of the wastewater inlet to distribute wastewater from the wastewater inlet pipe into the inner case. It is composed of; waste water distribution member.

At this time, the discharge hole of the wastewater distribution member is composed of the upper upper discharge hole and the lower discharge hole of the lower, the lower discharge hole is formed smaller diameter than the upper discharge hole can be easily formed floating material to move upwards have.

In addition, the rotational motor is connected to the wastewater distribution member to allow the wastewater distribution member to rotate around the center of the wastewater inlet so that the wastewater can be moved to the electrode plate while causing a tornado.

In addition, a wastewater inlet is formed on the outer case and a screw thread is formed on the outer circumferential surface of the wastewater inlet pipe so that the wastewater inlet pipe can be separated. You may.

In addition, the outer case may be configured by assembling the upper case and the lower case based on the connection point with the inner case to facilitate the internal repair and replacement of the electrode plate.

In addition, protrusions having a predetermined interval are provided in a zigzag at a lower portion of the inner case, and the electrode plate is interposed between the guide protrusions to prevent the electrode plate from being damaged by foreign matter between the electrode plates.

According to the present invention, the wastewater flowing into the reactor and the wastewater purified in the reactor are separated from each other, thereby improving the water treatment efficiency.

In addition, the pH concentration is kept constant so that the electrolysis reaction proceeds continuously, thereby improving the electrolysis efficiency.

In addition, deposits are trapped between the installed electrode plates so that device malfunction does not occur.

In addition, in forming a hole in the nozzle, the upper and lower sides are formed, and the upper hole is formed to be large, so that the suspended solids in the waste water can be directly sent to the upper portion, thereby reducing contact with the electrode plate side.

In addition, by configuring the nozzle to be rotatable, the waste water is introduced into the electrode plate side in the form of a whirlwind to increase the amount of waste water contacting the electrode plate to improve the electrolysis efficiency.

In addition, the slot is provided to facilitate the separation of the electrode plate, the slot does not short-circuit the electrode plate.

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

Hereinafter, the accompanying drawings are only examples for describing the present invention, and the present invention is not limited thereto. Those skilled in the art may modify the present invention in various forms by one embodiment of the present invention.

1 shows an example of an electric reactor for wastewater treatment of the present invention, it can be seen that the electric reactor of the present invention is composed of an outer case 100, an inner case 200, a wastewater distribution member 300.

In addition, the inner space of the outer case 100 is divided into a floating inflame removing unit 110a and electrolysis based on the point where the inner case 200 is connected.

In addition, the outer case 100 is assembled by dividing the upper case 110 and the lower case 120 on the basis of the point where the inner case 200 is connected.

The waste water inlet pipe 111 is installed at one side of the upper surface of the outer case 100 so that the waste water flows into the inside.

In addition, an exhaust port 113 is formed at one side of the upper portion of the outer case 100 so that the exhaust gas is discharged, and a chemical injection pipe 114 is inserted at the other side to supply the chemicals into the inside.

Specifically, the gas products generated through oxidation by the internal electrode plate 210 are collected into the upper space inside the outer case 100, and smoothly discharges the generated gases, and vacuums the inner space of the outer case 100. This is formed to remove the vacuum so as not to interfere with the water flow.

It is preferable that such an exhaust port 113 is always open as much as possible.

The chemical injection pipe 114 may be manually opened and closed to manually inject the medicine, but preferably is configured to automatically inject the medicine after checking the pH concentration inside the outer case (100).

To this end, a pH concentration measuring sensor is installed on the outer case 100 and the purified water outlet 121 to check a difference in pH concentration detected by both sensors, and a pH concentration measuring sensor is provided with a pH concentration adjusting control device. Electrically connected, the chemical injection pipe 114 is provided with a control valve pH control controller by adjusting the control valve (114a) according to the concentration detected from the pH concentration measurement sensor, the injection amount and injection of the pH adjusting chemicals It is desirable to control whether or not.

Purified water outlet 121 is formed at one side of the outer case 100 so that the purified wastewater is discharged to the outside.

In addition, the sediment removal pipe 122 is connected to the lower portion of the outer case 100 to discharge the precipitate.

The sediment removal pipe 122 is a sediment mixed in the waste water is moved to the bottom by the flow direction and gravity due to the decrease in the flow rate in the support pipe 123 to be described later and the filtering action of the support pipe filtration hole (123a) In order to discharge the sediment that does not pass through the sediment removal pipe 122, the valve is to install the automatic and manual valve to remove the accumulated sediment.

At this time, the sediment check window 122a is installed at the lower portion of the outer case 100 so as to correspond to the height of the sediment removal pipe 122 is connected to the naked eye to directly check the height of the accumulated internal deposits.

It is also possible to operate the sediment removal valve by installing a sensor at a predetermined height of the support tube 123 to which the sediment removal pipe 122 is connected.

In addition, the floating material removal opening 112 is formed on one side of the upper side to discharge the floating material.

If the floating material is not removed to the floating material removed in the floating inflame removal unit (110a), if the amount is increased, it is difficult to secure the head for the smooth flow of waste water, if the layer is thick, the electrode plate 210 is air It may be exposed to the overheating may cause a failure due to overheating of the electrode plate (210).

To this end, the suspended solids removal port 112 is installed to discharge the suspended solids by opening the suspended solids removing valve.

On the other hand, in the present invention, in order to smoothly maintain the flow of wastewater inside the outer case 100, it should always check how much the height of the wastewater in the upper portion.

If the level of the waste water drops below a certain range, the reactor may be exposed to air, causing a breakdown.

In addition, it is necessary to remove the suspended solids when the suspended solids accumulated in the waste water accumulate on the upper portion.

Therefore, it is preferable to install the sight glass 115 on the upper side of the outer case 100 in order to measure the head and the amount of indirect suspended matter in the inner space of the outer case 100.

In addition, a pillar member for supporting the outer case 100 from the ground may be installed at the lower portion of the outer case 100 as shown in the drawing.

On the other hand, the inner case 200 is installed in close contact with the inner peripheral surface of the upper outer peripheral surface so as to divide the inner space of the outer case 100 into the upper floating material removing portion and the lower electrolysis portion (120a).

Referring to the drawings, the outer case 100 has a flange formed on the lower portion of the upper case 110 and the lower case 120, the upper case 110 is formed with a flange on the upper portion of the inner case 200 The lower case 120 and the inner case 200 may be coupled to each other by the flanges 116 and the nut 124.

As such, when the inner case 200 is coupled to each other by a flange, the inner case 200 is blocked by the floating material removing unit and the electrolysis unit 120a so that the influent wastewater and the purified wastewater cannot be mixed.

In addition, it can be seen that the inner case 200 has a cylindrical shape in which the central portion of the inner side of the flange is bent downward.

In addition, an electrode plate 210 is installed inside the inner case 200, and a bottom surface thereof is connected to the sediment removal pipe 122, and a plurality of inner case side holes 200a are formed at the lower side and the bottom side wall of the inner case 200. I can see that there is.

The electrode plate 210 may be a variety of members having a variety of electrical conductivity, but the most preferred copper material, the electrode plate 210 is preferably arranged in the order '+-+-'.

A circuit is connected to each electrode plate 210 so that electricity can be applied thereto, and the electrode plate array is preferably installed to generate an optimum flow rate.

The inner case side hole 200a at the bottom and side of the inner case 200 helps the purified water from the electrode plate 210 to move to the purified water outlet 121, while remaining in the electrolysis process. The filter serves to prevent movement to the purified water discharge port 121 side.

On the other hand, the lower part of the inner case 200 in the drawing is spaced apart from the portion connected to the bottom side sediment removal pipe 122 of the outer case 100, it can be seen that the support pipe 123 is installed in that portion have.

In addition, the support pipe 123 is formed with a plurality of support pipe filtration holes (123a), which is deposited when the sediment is directly connected to the lower portion of the inner case 200, the deposit is accumulated under the inner case 200 electrode While preventing the malfunction of the plate 210 to occur, it is to serve as a filter to prevent the precipitate from moving to the purified water outlet 121 in accordance with the flow of water.

The wastewater distribution member 300 is installed at the bottom of the wastewater inlet pipe 111 of the outer case 100 so that the wastewater inlet 111b has a center so as to disperse the wastewater introduced into the inner case 200 from the wastewater inlet pipe 111. It has the same shape as '*' where multiple pipes are combined along the axis.

The wastewater distribution member 300 is installed to increase the reaction effect by efficiently distributing wastewater such as livestock wastewater introduced through the wastewater inlet pipe 111 to the electrode plate 210.

That is, the wastewater introduced through the wastewater inlet pipe 111 is moved toward the electrode plate 210 inside the inner case 200 through the plurality of discharge holes 310 formed in the wastewater distribution member 300. .

At this time, the wastewater inlet pipe 111 and the wastewater distribution member 300 may be configured integrally, or may be configured to be separable.

In the configuration as described above, the waste water inlet pipe 111 is not only to be fixed, separated from the waste water inlet 111b side, it is possible to move up and down along the thread (111a).

This is to change the distance between the discharge hole 310 formed in the waste water distribution member 300 and the electrode plate 210.

That is, if necessary, to improve the wastewater treatment speed, while moving the wastewater inlet pipe 111 to the lower portion to shorten the distance between the wastewater distribution member 300 and the electrode plate 210, to delay the speed In this case, the distance between the wastewater distribution member 300 and the electrode plate 210 may be increased by moving upwards while rotating the wastewater inflow pipe 111.

In particular, even if the floating material on the upper part of the wastewater forms a thick layer, the floating material and the wastewater distribution member 300 may not be directly contacted while moving the wastewater distribution member 300 up and down.

Looking at the operation of the wastewater treatment electric reaction tank of the present invention configured as described above, the electrode plate 210 is operated in the state in which the wastewater level up to the floating inflame removal unit (110a) inside the operation of the reaction vessel.

 In addition, after the wastewater is electrolyzed between the electrode plates 210 inside the inner case 200 through the discharge hole 310 of the wastewater distribution member 300 connected to the wastewater inlet 111b, the purified water outlet 121 is disposed. As the waste water is moved, the suspended solids are moved to the floating inflammability removing unit 110a at the top of the outer case 100 and then discharged through the floating substance removing port 112, and the precipitate precipitated in the waste water is precipitated at the bottom. It is discharged to the outside through the removal pipe 122.

In addition, the gas generated through the electrolysis process is discharged to the outside through the exhaust port 113, the drug is introduced into the inside through the chemical inlet to maintain the internal pH.

At this time, the drug injection is preferably to be made automatically by the control valve (114a), pH concentration sensor, pH concentration control device as described above, the removal of suspended solids to the naked eye through the sight glass 115 After confirming, the floating material removal opening 112 is opened, and the discharge of the sediment is also discharged through the opening of the sediment removal valve after confirming the accumulated amount of the sediment through the sediment check window 122a.

In the above configuration, the outer case 100 is preferably configured to be fixed, separated by being divided into the lower case 120 and the upper case 110 as shown in the figure.

This is for repairing and replacing the electrode plate 210 and the wastewater distribution member 300 installed therein.

Therefore, the waste water inlet pipe 111 is also preferably configured to be separated.

To this end, the outer case 100, that is, the waste water inlet 111b is formed on the upper surface of the upper case 110, and a screw thread 111a is formed on the outer circumferential surface of the waste water inlet tube 111 of the waste water inlet tube 111 It is good to allow separation.

At this time, the wastewater distribution member 300 is also preferably configured to be separated from the wastewater inlet pipe (111).

That is, the thread 111a may be formed at the lower end of the wastewater inflow pipe 111, and the wastewater inflow member may be formed to be bolted to the thread 111a of the wastewater inflow pipe 111.

When the wastewater inflow member can be separated as described above, the wastewater inflow member can be separated and foreign matters caught in the discharge hole 310 of the wastewater inflow pipe 111 can be removed to prevent head loss during wastewater supply.

Meanwhile, in the above configuration, the discharge hole 310 of the wastewater distribution member 300 is divided into an upper discharge hole 311 and a lower discharge hole 312 at the upper portion, and the lower discharge hole 312 is formed at the upper portion. It is preferable to form the diameter smaller than the discharge hole 311.

When the waste water flows into the inner case 200, the floating foreign matter contained in the waste water naturally leads to the upper portion, and only the waste water flows into the lower portion so that the floating foreign matter does not adhere well to the electrode plate 210.

Accordingly, the floating material is floated to the floating influenza removing unit 110a, while the flow of the wastewater contained in the floating inferior removing unit 110a on the upper side of the wastewater distribution member 300 is prevented while the flow of the wastewater is reduced. Serves to form a smooth stream of water to 120a).

On the other hand, the electrode plate 210 installed inside the inner case 200 is preferably provided with a slot 220 in the lower portion of the inner case 200 in order to facilitate separation.

However, the arrangement interval of the electrode plate 210 for electrolysis is usually very short within 1 cm, when foreign matter is attached to the electrode plate 210 of different poles may cause problems in the electrode plate 210.

In particular, a problem may occur in the lower side of the electrode plate 210 when foreign matter precipitated in the lower portion of the inner case 200 is caught in the gap between the slots 220.

In order to solve this problem, it is preferable to install the guide protrusions 230 having a predetermined interval in a zigzag instead of the slot 220 in which the electrode plate 210 is inserted.

That is, by minimizing the contact area between the member fixing the electrode plate 210 and the electrode plate 210, it is possible to minimize the probability that the foreign matter is caught between the electrode plate 210.

On the other hand, in the present invention configured as described above, it is possible to form the waste water distribution member 300 to be rotatable.

To this end, the wastewater distribution member 300 and the wastewater inlet pipe 111 may be configured to rotate only the wastewater distribution member 300 while being separated from each other, and a rotary motor may be connected to one side of the wastewater distribution member 300.

As such, when the wastewater distribution member 300 is rotated, the wastewater flowing into the electrode plate 210 of the inner case 200 is supplied in a tornado form.

This increases the supply angle of the wastewater supplied to the electrode plate 210 to about 20 degrees to about 20 to 30 degrees, thereby further improving the electrolysis efficiency of water.

The electric reaction tank for wastewater treatment of the present invention is particularly useful for the treatment of livestock wastewater having a certain component of suspended solids and sediments, and in the case of wastewater having a variety of suspended solids and sediments, it is used together with other filtration and physical separation devices to collect wastewater. Can be used to purify.

1 is a partially cut perspective view showing an electric reactor for wastewater treatment of the present invention.

Figure 2 is a partially cut away exploded perspective view showing an electric reactor for wastewater treatment of the present invention.

3 is a cross-sectional view showing an electric reactor for wastewater treatment of the present invention.

4 is a cross-sectional view showing still another example of the electric reaction tank for wastewater treatment of the present invention.

Figure 5 is a partially cut away exploded perspective view showing an example of the connection state of the wastewater inlet pipe and wastewater distribution member of the wastewater treatment electric reaction tank of the present invention.

6 is a plan view schematically showing an example of an electrode plate and a protrusion installed in an inner case of an electric reactor for wastewater treatment of the present invention.

<Detailed Description of Major Symbols in Drawing>

100: outer case 110: upper case

110a: floating material removal unit 111: wastewater inlet pipe

111a: thread 111b: wastewater inlet

112: floating material removal port 113: exhaust port

114: chemical injection pipe 114a: control valve

115: sight glass 116: bolt

120: lower case 120a: electrolytic part

121: purified water outlet 122: sediment removal pipe

122a: sediment confirmation window 123: support pipe

124: nut 123a: support observation filtration hole

200: inner case 200a: inner case side hole

210: electrode plate 220: slot

230: guide protrusion 300: waste water distribution member

310: discharge hole 311: upper discharge hole

312: lower discharge hole

Claims (5)

In the electric reactor for wastewater treatment, Waste water inlet pipe 111 is installed on the upper side to allow the wastewater to flow into the interior, and a purified water outlet 121 is formed on one side to discharge the purified wastewater to the outside. Removal port 112 is formed to discharge the suspended matter, the exhaust port 113 is formed on one side of the exhaust gas is to be discharged, the chemical injection pipe 114 is inserted into the other side to the drug It is to be supplied to the inside, and the outer case 100 is connected to the sediment removal pipe 122 at the bottom to discharge the precipitate; The upper outer circumferential surface is installed in close contact with the inner circumferential surface of the outer case 100 so as to divide the inner space of the outer case 100 into the upper floating material removing portion and the lower electrolysis portion 120a. Is installed, the bottom is connected to the sediment removal pipe 122, and the inner case 200 is formed with a plurality of inner case side holes (200a) in the lower side and the bottom side; A plurality of pipes are installed at the bottom of the waste water inlet pipe 111 of the outer case 100 so as to disperse the waste water flowing into the inner case 200 from the waste water inlet pipe 111 around the center of the waste water inlet 111b. It has a combined shape, each pipe is a wastewater distribution member 300 is formed with a plurality of discharge holes 310; configured to include, Electric reactor for wastewater treatment. The method of claim 1, The outer case 100 is characterized in that the upper case 110 and the lower case 120 is assembled based on the connection point with the inner case 200, Electric reactor for wastewater treatment. The method of claim 2, A wastewater inlet 111b is formed on the outer case 100 and a screw thread 111a is formed on an outer circumferential surface of the wastewater inlet pipe 111 so that the wastewater inlet pipe 111 can be separated and moved up and down. Characterized in that Electric reactor for wastewater treatment. The method of claim 3, wherein The discharge hole 310 of the wastewater distribution member 300 is composed of an upper discharge hole 311 and the lower discharge hole 312 of the lower portion, the lower discharge hole 312 has a diameter than the upper discharge hole 311 Characterized by this small, Electric reactor for wastewater treatment. The method of claim 3, wherein The guide protrusions 230 having a predetermined interval under the inner case 200 are installed in a zigzag, and the electrode plate 210 is installed between the guide protrusions 230, Electric reactor for wastewater treatment.

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