Apparatus for decomposition of non-degradable organic matter and water treatment system using same

Abstract

The present invention relates to a non-degradable organic matter decomposition apparatus capable of decomposing a non-degradable organic matter contained in treated water by generating at least one of hydroxyl radicals, ozone, and hydrogen peroxide in an electrochemical manner using an electrode, and a water treatment system using same.

Description

Recalcitrant organic matter decomposition device and water treatment system using the same

[0001] The present invention relates to a device for decomposing non-biodegradable organic matter, which can decompose non-biodegradable organic matter contained in treated water by generating at least one of hydroxyl radicals, ozone, and hydrogen peroxide in an electrochemical manner using an electrode, and a water treatment system using the same.

[0002] The flotation separation water treatment system is known as a water treatment system that separates flocs by adding chemicals (such as alum) to raw water in a mixing tank and a coagulation tank, stirring it constantly, forming flocs by combining residual foreign substances in the raw water, and then introducing the raw water with formed flocs into a flotation tank, where bubbles generated from the circulating water in the flotation tank are combined with the flocs to float the flocs.

[0003] It is known that a flotation-type water treatment system according to this prior art is composed of a mixing tank and a flocculation tank in which suspended solid particles in water are mixed with a coagulant and flocs are formed, a flotation tank in which flocs are floated by microbubbles and the floated flocs are removed, and a microbubble generator that generates microbubbles in the flotation tank.

[0004] In addition, the conventional flotation separation water treatment system uses a method of injecting an oxidizing agent such as ozone to effectively remove difficult-to-decompose organic substances along with removing flocs. However, in this case, there was a problem of causing inconvenience, such as the need to prepare a separate oxidizing agent to remove difficult-to-decompose organic substances and a separate process for injecting the oxidizing agent.

[0005] The purpose of the present invention is to solve the above-mentioned problem, and the purpose is to provide a device for decomposing non-biodegradable organic matter, which enables decomposition of non-biodegradable organic matter without the need for a separate oxidizer, and a water treatment system using the same.

[0006] The purpose of the present invention is not limited to the purposes mentioned above, and other purposes not mentioned can be clearly understood from the description below.

[0007] A device for decomposing non-biodegradable organic matter to achieve the above object is installed inside a pressurized tube of a bubble generating unit forming a water treatment system to electrochemically remove non-biodegradable organic matter contained in treated water passing through the inside of the pressurized tube, the device comprising: a connecting plate fixed to a connecting flange extending horizontally on the outer circumference of a connecting tube extending vertically upward along the outer circumference of an insertion hole formed in an upper portion of the pressurized tube and closing the insertion hole; a first electrode connecting block fixed to one lower side of the connecting plate; a second electrode connecting block fixed to the other lower side of the connecting plate and spaced apart from the first electrode connecting block; a cathode vertically connected to the lower end of the first electrode connecting block and having a flat plate shape; an anode vertically connected to the lower end of the second electrode connecting block and spaced apart from the cathode by a predetermined distance and having a shape corresponding to the cathode; an electrode supporting member for vertically supporting and fixing the cathode and the anode while maintaining a distance therebetween; And it may be configured with an electric supply terminal which is individually connected to the first electrode connection block and the second electrode connection block, and has an upper end exposed to the outside through a terminal pass-through hole formed in the connection plate.

[0008] A water treatment system using a device for decomposing difficult-to-decompose organic matter to achieve the above object comprises: a raw water inlet for receiving raw water from an external source and forming flocs inside the raw water; a raw water treatment unit for receiving the raw water from the raw water inlet and for causing the flocs to float to the surface of the raw water through microbubbles; a floc removal unit for removing the flocs floated to the surface of the raw water in the raw water treatment unit through a skimmer; a treated water discharge unit connected to the raw water treatment unit for discharging treated water from which the flocs have been removed in the raw water treatment unit; a circulation treatment unit for returning and circulating a portion of the treated water discharged from the treated water discharge unit to the raw water treatment unit through a circulation pipe and a pump; a bubble generation unit connected to the circulation pipe between the pump and the raw water treatment unit and for injecting compressed air into the interior of a pressurized tube while causing the treated water returned to the raw water treatment unit to pass through the interior of a pressurized tube so that the microbubbles dissolve in the treated water; And a connecting plate that closes the insertion hole while being fixed to a connecting flange that extends horizontally on the outer surface of a connecting tube that extends vertically upward along the outer surface of an insertion hole drilled in the upper side of the pressurized tube, a first electrode connecting block that is fixed to one side of the lower portion of the connecting plate, a second electrode connecting block that is fixed to the other side of the lower portion of the connecting plate and spaced apart from the first electrode connecting block, a cathode that is vertically connected to the lower portion of the first electrode connecting block and has a flat plate shape, an anode that is vertically connected to the lower portion of the second electrode connecting block and is spaced apart from the cathode by a certain distance and has a shape corresponding to the cathode, an electrode supporting member that vertically supports and fixes the cathode and the anode while maintaining a distance therebetween, and an electric supply terminal that is individually connected to the first electrode connecting block and the second electrode connecting block and has an upper end exposed to the outside through a terminal through hole formed in the connecting plate. It may be composed of an organic matter decomposition device.

[0009] The device for decomposing difficult-to-decompose organic matter according to the present invention by the above-described configuration and the water treatment system using the same can effectively remove difficult-to-decompose organic matter contained in treated water by generating at least one of hydroxyl radical (OH·hydroxyl radical), ozone (O3), and hydrogen peroxide (H2O2) through an electrochemical method using an electrode without adding a separate oxidizing agent such as ozone.

[0010] Figure 1 is a diagram illustrating the overall configuration of a water treatment system using a non-biodegradable organic matter decomposition device according to a preferred embodiment of the present invention.

[0011] FIG. 2 is a partial vertical cross-sectional view showing a bubble generating unit and a non-biodegradable organic matter decomposition device, which are main parts of a water treatment system using a non-biodegradable organic matter decomposition device according to a preferred embodiment of the present invention.

[0012] Figure 3 is a plan view illustrating a bubble generating unit of a water treatment system using a non-biodegradable organic matter decomposition device according to a preferred embodiment of the present invention.

[0013] Figure 4 is a perspective view illustrating a device for decomposing non-biodegradable organic matter according to a preferred embodiment of the present invention.

[0014] FIG. 5 is a partially exploded perspective view illustrating a device for decomposing non-biodegradable organic matter according to a preferred embodiment of the present invention.

[0015] FIG. 6 is a perspective view illustrating a cathode and an anode forming electrodes of a device for decomposing non-biodegradable organic matter according to a preferred embodiment of the present invention.

[0016] Figure 7 is a vertical cross-sectional view along line AA of Figure 4.

[0017] Figure 8 is a vertical cross-sectional view along line BB of Figure 4.

[0018] Figure 9 is a perspective view showing a gap maintenance unit of a non-biodegradable organic matter decomposition device according to a preferred embodiment of the present invention.

[0019] Fig. 10 is a perspective view showing a horizontal support of a non-biodegradable organic matter decomposition device according to a preferred embodiment of the present invention.

[0020] A device for decomposing non-biodegradable organic matter to achieve the above object is installed inside a pressurized tube of a bubble generating unit forming a water treatment system to electrochemically remove non-biodegradable organic matter contained in treated water passing through the inside of the pressurized tube, the device comprising: a connecting plate fixed to a connecting flange extending horizontally on the outer circumference of a connecting tube extending vertically upward along the outer circumference of an insertion hole formed in an upper portion of the pressurized tube and closing the insertion hole; a first electrode connecting block fixed to one lower side of the connecting plate; a second electrode connecting block fixed to the other lower side of the connecting plate and spaced apart from the first electrode connecting block; a cathode vertically connected to the lower end of the first electrode connecting block and having a flat plate shape; an anode vertically connected to the lower end of the second electrode connecting block and spaced apart from the cathode by a predetermined distance and having a shape corresponding to the cathode; an electrode supporting member for vertically supporting and fixing the cathode and the anode while maintaining a distance therebetween; And it may be configured with an electric supply terminal which is individually connected to the first electrode connection block and the second electrode connection block, and has an upper end exposed to the outside through a terminal pass-through hole formed in the connection plate.

[0021] A water treatment system using a device for decomposing difficult-to-decompose organic matter to achieve the above object comprises: a raw water inlet for receiving raw water from an external source and forming flocs inside the raw water; a raw water treatment unit for receiving the raw water from the raw water inlet and for causing the flocs to float to the surface of the raw water through microbubbles; a floc removal unit for removing the flocs floated to the surface of the raw water in the raw water treatment unit through a skimmer; a treated water discharge unit connected to the raw water treatment unit for discharging treated water from which the flocs have been removed in the raw water treatment unit; a circulation treatment unit for returning and circulating a portion of the treated water discharged from the treated water discharge unit to the raw water treatment unit through a circulation pipe and a pump; a bubble generation unit connected to the circulation pipe between the pump and the raw water treatment unit and for injecting compressed air into the interior of a pressurized tube while causing the treated water returned to the raw water treatment unit to pass through the interior of a pressurized tube so that the microbubbles dissolve in the treated water; And a connecting plate that closes the insertion hole while being fixed to a connecting flange that extends horizontally on the outer surface of a connecting tube that extends vertically upward along the outer surface of an insertion hole drilled in the upper side of the pressurized tube, a first electrode connecting block that is fixed to one side of the lower portion of the connecting plate, a second electrode connecting block that is fixed to the other side of the lower portion of the connecting plate and spaced apart from the first electrode connecting block, a cathode that is vertically connected to the lower portion of the first electrode connecting block and has a flat plate shape, an anode that is vertically connected to the lower portion of the second electrode connecting block and is spaced apart from the cathode by a certain distance and has a shape corresponding to the cathode, an electrode supporting member that vertically supports and fixes the cathode and the anode while maintaining a distance therebetween, and an electric supply terminal that is individually connected to the first electrode connecting block and the second electrode connecting block and has an upper end exposed to the outside through a terminal through hole formed in the connecting plate. It may be composed of an organic matter decomposition device.

[0022] Hereinafter, with reference to the attached drawings, a device for decomposing non-biodegradable organic matter and a water treatment system using the same according to an embodiment of the present invention will be described in detail.

[0023]

[0024] A water treatment system (1000) using a non-biodegradable organic matter decomposition device according to an embodiment of the present invention may be composed of a raw water inlet (100), a treatment unit (200), a floc removal unit (300), a treated water discharge unit (400), a circulation treatment unit (500), a bubble generation unit (600), and a non-biodegradable organic matter decomposition device (700), as shown in FIG. 1.

[0025]

[0026] First, the raw water inlet (100) can receive raw water containing toxic organic matter from the outside. At this time, the raw water inlet (100) can form flocs inside the raw water in a conventional manner.

[0027]

[0028] Next, the raw water treatment unit (200) can receive raw water from the raw water inlet unit (100) and float the flocs formed by the raw water storage unit (100) to the surface of the raw water through microbubbles.

[0029]

[0030] Next, the above-mentioned floc removal unit (300) is installed on the upper part of the raw water treatment unit (200) and can remove floc that floats to the surface of the raw water through a skimmer.

[0031]

[0032] Next, the treated water discharge unit (400) is connected to the raw water treatment unit (200) so that the treated water from which the flocs have been removed in the raw water treatment unit (200) can be introduced into the interior and discharged to the exterior.

[0033]

[0034] Next, the circulation treatment unit (500) can return and circulate a portion of the treated water discharged from the treated water discharge unit (400) to the raw water treatment unit (200).

[0035] To this end, the circulation treatment unit (500) may be configured with a circulation pipe (510) connecting the raw water treatment unit (200) and the treated water discharge unit (400), as illustrated in FIG. 1, and a pump (520) installed in the circulation pipe (510) to transfer a portion of the treated water discharged from the treated water discharge unit (400) to the raw water treatment unit (200).

[0036]

[0037] Next, the bubble generating unit (600) is installed in the circulation pipe (510) between the pump (520) of the circulation treatment unit (500) and the raw water treatment unit (200), and receives treated water from the circulation pipe (510) and passes it through, while dissolving compressed air in the treated water, so that the treated water with the compressed air dissolved therein returns to the raw water treatment unit (200), thereby supplying microbubbles to the raw water treatment unit (200).

[0038] To this end, the bubble generating unit (600) may be composed of a pressurized tube (610), a microbubble generating means (620), an air compressor (630), and a compressed air supply pipe (640) as shown in FIGS. 1 to 3.

[0039] The above pressurized tube (610) is connected to a circulation pipe (510) at one end and the other end so that treated water returning from the treated water discharge unit (400) to the raw water treatment unit (200) through the circulation pipe (510) can be introduced into the interior.

[0040] The above microbubble generating means (620) is installed inside the pressurized tube (610), and a compressed air inlet space (621) into which compressed air is introduced is formed inside, and a plurality of micropores (622) that connect the compressed air inlet space (621) and the inside of the pressurized tube (610) can be formed on the surface.

[0041] The above air compressor (630) is connected to a microbubble generating means (620) and can supply compressed air obtained by compressing external air to a compressed air inlet space (621).

[0042] The above compressed air supply pipe (640) connects the air compressor (630) and the microbubble generating means (620) so that the compressed air generated in the air compressor (630) can be supplied to the microbubble generating means (620).

[0043] That is, the bubble generating unit (600) generates microbubbles in the process of compressed air generated in the air compressor (630), passing through the compressed air supply pipe (640), and then flowing into the compressed air inlet space (621) of the microbubble generating means (620) passing through the micro-holes (622), and then dissolving the microbubbles in the treated water passing through the pressurized tube (610), thereby supplying the microbubbles to the raw water treatment unit (200).

[0044]

[0045] Next, the above-mentioned non-biodegradable organic matter decomposition device (700) is installed in the bubble generating unit (600) and generates at least one of hydroxyl radical (OH·hydroxyl radical), ozone (O3), and hydrogen peroxide (H2O2) in the treated water passing through the bubble generating unit (600) through an electrochemical reaction according to the application of electric energy, thereby removing non-biodegradable organic matter present in the treated water.

[0046]

[0047] Here, the non-biodegradable organic matter decomposition device (700) may include an insertion hole (650), a connecting tube (660), a connecting flange (670), and a connecting plate (680) as shown in FIGS. 2 to 3 to be installed in the pressurized tube (610) of the bubble generating unit (600).

[0048] The above insertion hole (650) can be formed through the upper side of the pressurized tube (610) so that a non-biodegradable organic matter decomposition device (700) can be inserted into the inside of the pressurized tube (610).

[0049] The above connecting pipe (660) can be formed to extend vertically upward along the outer circumference of the insertion hole (650).

[0050] The above connecting flange (670) is formed to protrude horizontally along the upper outer periphery of the connecting pipe (660), and a plurality of connecting screw holes (671) can be formed to penetrate vertically at regular intervals from each other.

[0051] The above connecting plate (680) is formed with a connecting member insertion hole (681) corresponding to the connecting screw hole (671) of the connecting flange (670), and can be fixed to the upper portion of the connecting flange (670) in a manner that closes the insertion hole (650) via a plurality of connecting members (682).

[0052]

[0053] Meanwhile, the non-biodegradable organic matter decomposition device (700) is fixed to the lower surface of the connection plate (680) while being inserted into the inside of the bubble generating unit (600), and may be composed of an electrode connection block (710), an electrode (720), an electrode support member (730), and a power supply terminal (740) as shown in FIGS. 4 to 8.

[0054] At this time, the non-decomposable organic matter decomposition device (700) may be installed in multiple stages in a continuous manner along the length of the pressure tube (610) on the lower surface of the connecting plate (680) as shown in FIGS. 4 and 5, depending on the capacity of the pressure tube (610).

[0055] The above electrode connection block (710) may be composed of a first electrode connection block (711) and a second electrode connection block (712) that form a pair.

[0056] The above first electrode connection block (711) is fixed to one side of the lower portion of the connection plate (680), and the second electrode connection block (712) can be fixed to the other side of the lower portion of the connection plate (680) at a distance from the first electrode connection block (711).

[0057] That is, the first electrode connection block (711) and the second electrode connection block (712) may be spaced apart from each other or may be formed in a spaced-apart shape so as not to come into contact with each other at the bottom of the connection plate (680), as shown in FIG. 5.

[0058] The above electrode (720) may be composed of a cathode (721) and an anode (722) that form a pair and have a flat plate shape with the same area.

[0059] The cathode (721) and anode (77) can be individually fixed at their upper ends to the first electrode connection block (711) and the lower ends of the second electrode connection block (712) so that they can stand vertically, as shown in FIGS. 7 and 8.

[0060] At this time, the cathode (721) and the anode (722) may be configured as boron-doped diamond (BDD) electrodes so as to generate at least one of hydroxyl radicals, ozone, and hydrogen peroxide in the treated water when electric energy is applied from the outside.

[0061] However, the electrode (720) may be composed of multiple pairs of cathodes (721) and anodes (722). At this time, the electrodes (720) are arranged one pair at a time along the width direction of the pressurized tube (610), and the cathodes (721) and anodes (722) forming each pair may be vertically fixed to the lower ends of the first electrode connection block (711) and the second electrode connection block (712), respectively, while maintaining a gap therebetween.

[0062] The above electrode support member (730) can maintain the cathode (721) and the anode (722) constituting the electrode (720) in a vertically standing state by separating them from each other, while maintaining the spacing between the cathode (721) and the anode (722) regardless of the flow pressure of the treated water.

[0063] That is, the electrode support member (730) may be configured with a plurality of spacers (731) installed at vertical intervals in a horizontal direction perpendicular to the installation direction of the cathode (721) and the anode (722) as shown in FIGS. 7 and 8 to maintain the spacing between the cathode (721) and the anode (722), and a pair of vertical supports (733) positioned on both sides with the cathode (721) and the anode (722) interposed therebetween and installed vertically along one end and the other end of the spacer (731) to fix both ends of the spacer (731).

[0064] At this time, a plurality of electrode support holes (732) that allow the cathode (721) and the anode (722) to pass through each vertically can be formed in the gap maintenance unit (731), as shown in FIG. 9.

[0065] And a pair of vertical supports (733) can be fixed to the lower surface of the connection plate (680) with the upper end between the first electrode connection block (711) and the second electrode connection block (712).

[0066] However, a plurality of water passages (734) may be formed in the vertical support (733) to ensure smooth flow of the treated water as shown in FIG. 10 and to allow the treated water to smoothly contact the electrode (720).

[0067] The above power supply terminal (740) is for supplying electric energy to the electrode (720) from the outside and may be composed of a first terminal (741) and a second terminal (742).

[0068] The first terminal (741) can be electrically connected to the first electrode connection block (711), and the second terminal (742) can be electrically connected to the second electrode connection block (712).

[0069] However, as shown in FIG. 5, a terminal through hole (683) may be formed in the connecting plate (680) to expose the ends of the first terminal (741) and the second terminal (742) to the outside so that they can be connected to an external power supply device.

[0070] Accordingly, when electric energy is supplied from the outside through the first terminal (741) and the second terminal (742), electric energy is applied to the cathode (721) and the anode (722) through the first electrode connecting block (711) and the second electrode connecting block (712), respectively, and at least one of hydroxyl radicals, ozone, and hydrogen peroxide is generated at the cathode (721) and the anode (722), which are introduced into the inside of the pressurized tube (610) and effectively decompose and remove the difficult-to-decompose organic matter contained in the treated water passing between the cathode (721) and the anode (722).

[0071]

[0072] The above-described embodiments are merely exemplary, and those skilled in the art may devise other embodiments with various modifications therefrom.

[0073] Therefore, the true technical protection scope of the present invention should include not only the above-described embodiments but also other embodiments modified in various ways by the technical idea of ​​the invention described in the following patent claims.

[0074] The device for decomposing non-biodegradable organic matter according to the present invention and the water treatment system using the same can be used in the water treatment industry for treating contaminated water containing non-biodegradable organic matter.

Claims

1. It is installed inside the pressurized tube of the bubble generating unit forming the water treatment system to electrochemically remove the indestructible organic matter contained in the treated water passing through the inside of the pressurized tube. A connecting plate that closes the insertion hole while being fixed to a connecting flange that extends horizontally on the outer surface of a connecting tube that extends vertically upward along the outer surface of the insertion hole formed on the upper side of the pressurized tube; A first electrode connection block fixed to one side of the lower portion of the above connection plate; A second electrode connection block fixed to the lower side of the above connection plate and spaced apart from the first electrode connection block; A cathode having a flat shape and connected vertically to the bottom of the first electrode connection block; An anode that is vertically connected to the lower part of the second electrode connection block, spaced apart from the cathode at a certain interval, and has a shape corresponding to the cathode; An electrode support member that vertically supports and fixes the cathode and the anode while maintaining a gap between them; and A device for decomposing difficult-to-decompose organic matter, characterized in that it comprises an electric supply terminal individually connected to the first electrode connection block and the second electrode connection block and having an upper end exposed to the outside through a terminal pass-through formed in the connection plate.

2. In paragraph 1, The above electrode support member A gap-maintaining member in which a plurality of electrode support holes are formed to horizontally install the cathode and the anode with a vertical gap therebetween, and through which the cathode and the anode each penetrate, to maintain the gap between the cathode and the anode; A device for decomposing difficult-to-decompose organic matter, characterized in that it comprises a pair of vertical supports positioned on both sides of the cathode and the anode, installed vertically along one end and the other end of the spacer, fixing both ends of the spacer, and having an upper end fixed to the connecting plate.

3. In paragraph 2, The above cathode and the above anode A device for decomposing difficult-to-decompose organic matter, characterized in that it comprises a boron-doped diamond electrode capable of decomposing difficult-to-decompose organic matter contained in treatment water passing through the inside of the pressurized tube.

4. A raw water inlet that receives raw water from the outside and forms a floc inside the raw water; A raw water treatment unit that receives the raw water from the raw water inlet and floats the flocs to the surface of the raw water through microbubbles; A floc removal unit that removes the floc that has risen to the surface of the raw water in the raw water treatment unit through a skimmer; A treated water discharge unit connected to the above raw water treatment unit and discharging treated water from which the floc has been removed in the above raw water treatment unit; A circulation treatment unit that circulates a portion of the treated water discharged from the treated water discharge unit back to the raw water treatment unit through a circulation pipe and pump; A bubble generating unit that is connected to the circulation pipe between the pump and the raw water treatment unit and injects compressed air into the inside of the pressurized tube so that microbubbles are dissolved in the treated water while passing the treated water returned to the raw water treatment unit through the inside of the pressurized tube; and A non-degradable device comprising: a connecting plate that closes the insertion hole while being fixed to a connecting flange that extends horizontally on the outer surface of a connecting tube that extends vertically upward along the outer surface of an insertion hole formed on the upper side of the pressurized tube; a first electrode connecting block that is fixed to one side of the lower portion of the connecting plate; a second electrode connecting block that is fixed to the other side of the lower portion of the connecting plate and spaced apart from the first electrode connecting block; a cathode that is vertically connected to the lower portion of the first electrode connecting block and has a flat plate shape; an anode that is vertically connected to the lower portion of the second electrode connecting block and is spaced apart from the cathode by a certain distance and has a shape corresponding to the cathode; an electrode supporting member that vertically supports and fixes the cathode and the anode while maintaining a distance therebetween; and an electric supply terminal that is individually connected to the first electrode connecting block and the second electrode connecting block and has an upper end exposed to the outside through a terminal through hole formed in the connecting plate. A water treatment system using a non-biodegradable organic matter decomposition device characterized by comprising an organic matter decomposition device.

5. In paragraph 4, The above electrode support member A gap-maintaining member in which a plurality of electrode support holes are formed to horizontally install the cathode and the anode with a vertical gap therebetween, and through which the cathode and the anode each penetrate, to maintain the gap between the cathode and the anode; A water treatment system using a device for decomposing non-biodegradable organic matter, characterized in that it comprises a pair of vertical supports positioned on both sides of the cathode and the anode, installed vertically along one end and the other end of the spacer, fixing both ends of the spacer, and having the upper end fixed to the connecting plate.

6. In paragraph 5, The above cathode and the above anode A water treatment system using a non-biodegradable organic matter decomposition device characterized by being configured with a boron-doped diamond electrode capable of decomposing non-biodegradable organic matter contained in treatment water passing through the inside of the pressurized tube.

7. In paragraph 4, The above bubble generating part A pressurized tube connected to the above circulation pipe, A microbubble generating means installed inside the pressurized tube, having a compressed air inlet space formed therein into which compressed air is introduced, and having a plurality of micro-holes formed on the surface to connect the compressed air inlet space and the inside of the pressurized tube, An air compressor that supplies compressed air to the compressed air intake space, A water treatment system using a device for decomposing non-biodegradable organic matter, characterized in that it comprises a compressed air supply pipe connecting the air compressor and the microbubble generating means.

Images