KR20200028347A - Wastewater treatment apparatus - Google Patents

Abstract

According to an embodiment of the present invention, a wastewater treatment apparatus which is an apparatus for purifying wastewater through a purifying process, comprises: an oil-water treatment tank for providing a space for storing wastewater introduced through an inlet, and discharging treated water performed with an oil-water separation process for the wastewater through an outlet; an oil separation filter unit made of a material including an ultra-high molecular weight polyethylene to perform the oil-water separation process before the wastewater introduced into the space is discharged through the outlet, wherein the oil-water separation process is a process of absorbing and growing oil particles by retention while the wastewater passes through the oil-water separation filter unit to be floated by a specific gravity difference; an oil inflow unit positioned at an oil layer formed by floating the oil particles in the space to allow oil forming the oil layer to be introduced; and a path forming unit connected to the oil inflow unit to provide a path for discharging the oil introduced through the oil inflow unit to an external storage space. The path forming unit has the path changed in accordance with the oil inflow unit having a position determined based at the height at which the oil layer is formed in the space.

Description

Wastewater treatment apparatus

The present invention relates to a wastewater treatment device, and more specifically, to separate the oil component by the natural flow of wastewater flowing through the inlet and to discharge the treated water sterilized by other harmful bacteria such as lactic acid reducing bacteria and / or E. coli It relates to a wastewater treatment device.

In general, wastewater containing an oil component causes water pollution, odor and industrial accidents, and generates bequest, causing air pollution and respiratory diseases.

For this reason, various methods have been proposed to separate the oil component contained in the wastewater, among which is the method of removing by the specific gravity difference between oil and water, and the method of removing by the Stokes law based on the flow of the mixture according to buoyancy. There is this.

Here, the removal method by the specific gravity difference between oil and water is relatively easy to separate if the size of the oil droplet is 1 mm or more, but the oil droplet in a state of 1 to 1.5 µm in diameter through the flow of the fluid takes a long time. As a result, the processing efficiency is reduced too much.

In addition, the method of removing by the Stokes law based on the flow of the mixture according to buoyancy is a type of coalescing plate pack that installs several horizontal or parallel inclined plates in the treatment tank to increase the effective contact area. The contaminated water containing the component is passed through a binder in which multi-level arrangements of polyplophylen corrugated boards or egg-shaped boards are made.

However, in such a method, when used for a long period of time, a viscous sludge in which an oil component and a floating substance are combined is deposited between the combined multi-stage corrugated boards or egg boards, thereby preventing the passage of fluid.

This disruption of the fluid flow delays the oil-water separation treatment and eventually leads to a decrease in treatment efficiency.

On the other hand, in the case of wastewater containing lactic acid-reducing bacteria or E. coli, as well as wastewater containing oil components, lactobacillus-reducing bacteria proliferate explosively in oil, corroding metals, concrete facilities, etc., causing enormous damage. It creates extreme odors that threaten hygiene and cause complaints.

In addition, in the case of wastewater containing other harmful bacteria such as E. coli, it causes water-borne disease and causes damage.

Therefore, there is a need to develop a device for discharging treated water in which oil components contained in wastewater are separated and other harmful bacteria such as lactobacilli and / or E. coli are sterilized in a more effective manner than conventional methods.

One object of the present invention is to separate the oil component by the natural flow of the wastewater flowing through the inlet and to facilitate the washing of the filter while at the same time to ensure that other harmful bacteria such as lactic acid reducing bacteria and / or E. coli are discharged. It is to provide a wastewater treatment device.

In addition, another object of the present invention is to provide a wastewater treatment device that prevents the deterioration of the purification function by controlling the flow rate even when the inflow of wastewater is suddenly increased.

In addition, another object of the present invention is to provide a wastewater treatment device that allows the oil component separated from the wastewater to be efficiently extracted, providing convenience of management, and reusing the extracted oil according to the purpose.

Wastewater treatment apparatus according to an embodiment of the present invention, as a device for purifying wastewater through a purification process, provides a space for storing the wastewater introduced through the inlet, and the oil and water separation process for the wastewater proceeded An oil-water separation treatment tank that allows treatment water to be discharged through a discharge port; The oil disposed in the lower part of the space is made of a material containing ultra-high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE), so that the oil-water separation process proceeds before the wastewater flowing into the space is discharged through the outlet. Separation filter unit-The oil-water separation process is a process in which the oil particles are adsorbed and grown by residence while the wastewater passes through the oil separation filter unit, and is floated by a specific gravity difference-; An oil inlet part positioned in an oil layer formed by the floating of the oil particles in the space to allow oil constituting the oil layer to flow in; And a path forming part connected to communicate with the oil inlet part and providing a path for the oil introduced through the oil inlet part to be discharged to an external storage space. The path forming part includes: It may be characterized in that the path is changed according to the oil inlet portion is positioned based on the height of the oil layer is formed.

The wastewater treatment apparatus according to an embodiment of the present invention is rotated by the flow of the treated water, which has been subjected to the collision of the oil particles or the oil-water separation process floating in the space, to be discharged through the outlet, around the oil inlet. In order to induce the flow in the rotational direction, it may be characterized in that it further comprises a; first wing portion mounted to the oil inlet.

In the wastewater treatment apparatus according to an embodiment of the present invention, when a flow in the rotational direction is induced around the oil inlet portion by rotation of the first wing portion, the flow is directed toward the oil inlet portion by rotation. It may be characterized in that it further comprises; a second wing portion mounted to the oil inlet, so that the oil constituting the oil layer flows smoothly into the oil inlet.

The first wing portion of the wastewater treatment apparatus according to an embodiment of the present invention may be characterized in that it is located on the boundary between the oil layer and the layer other than the oil layer.

The first wing portion of the wastewater treatment apparatus according to an embodiment of the present invention may be characterized in that the specific gravity is larger than the oil layer but smaller than a layer other than the oil layer.

The oil inlet part of the wastewater treatment apparatus according to an embodiment of the present invention may be characterized in that it is connected to the path forming part so that free rotation is possible with respect to the path forming part.

According to the wastewater treatment apparatus according to the present invention, the oil component is separated by the natural flow of wastewater flowing through the inlet, and other harmful bacteria such as lactic acid-reducing bacteria and / or E. coli are discharged, and the filter is washed at the same time. This can be facilitated.

In addition, even when the inflow of wastewater increases suddenly, the flow rate can be controlled to prevent the deterioration of the purification function.

In addition, it is possible to efficiently extract the oil component separated from the wastewater, and at the same time provide convenience for management and reuse of the extracted oil according to the purpose.

1 is a schematic cross-sectional view for explaining a wastewater treatment apparatus according to an embodiment of the present invention.
FIG. 2 is a view for explaining a flow rate reduction unit provided to a wastewater treatment apparatus according to an embodiment of the present invention, and is a schematic enlarged view of part A of FIG. 1.
Figure 3 is a view for explaining a solid separation filter provided in the wastewater treatment apparatus according to an embodiment of the present invention, a schematic enlarged view of part B of FIG.
4 and 5 are schematic perspective views for explaining the oil adsorption filter unit of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention.
6 is a view for explaining an apparatus for extracting oil separated by a wastewater treatment apparatus according to an embodiment of the present invention, schematically enlarged view of part C of FIG. 1.
7 is a view for explaining a modification of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention, a modified schematic enlarged view of part A of FIG.
8 is a schematic plan view seen from above with respect to a modification of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention.
FIG. 9 is a schematic cross-sectional view for explaining the principle of injection of washing water and the like to a seal unit assembly in a modified example of a solid separation filter unit provided in a wastewater treatment apparatus according to an embodiment of the present invention, in line AA of FIG. 7. A schematic cross section along.
FIG. 10 is a schematic perspective view for explaining a principle in which an oil adsorption filter unit is mounted on a solid separation filter frame provided in the solid separation filter unit shown in FIG. 7.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and a person skilled in the art who understands the spirit of the present invention may add another component within the scope of the same spirit, change, delete, etc. Other embodiments that are included within the scope of the invention idea can be easily proposed, but this will also be included within the scope of the invention.

In addition, components having the same function within the scope of the same idea appearing in the drawings of the respective embodiments will be described using the same reference numerals.

1 is a schematic cross-sectional view for explaining a wastewater treatment apparatus according to an embodiment of the present invention.

Referring to Figure 1, the wastewater treatment apparatus 10 according to an embodiment of the present invention is a device for purifying wastewater through a purification process, a solids treatment tank 100 for the solids treatment process for the wastewater, Oil-water separation processing tank 200 for the oil-water separation process, sterilization processing tank 300 and micro-foreign material processing process for the sterilization process of other harmful bacteria such as lactobacilli and / or E. coli causing water-borne diseases It may include a fine foreign matter treatment tank 400 to proceed.

Hereinafter, for convenience of explanation, other harmful bacteria such as lactobacillus-reducing bacteria and / or E. coli causing water-borne diseases are referred to as lactobacillus-reducing bacteria, and other harmful bacteria such as lactobacillus-reducing bacteria and / or E. coli causing water-borne diseases are sterilized. The process is called a lactic acid-reducing bacteria sterilization process.

The solids treatment tank 100, the oil and water separation treatment tank 200, the sterilization treatment tank 300, and the fine foreign matter treatment tank 400 are sequentially disposed to flow through the inlet 102 of the solids treatment tank 100 Solid waste treatment, oil-water separation, lactic acid-reducing bacteria sterilization, and micro-foreign treatment can be sequentially performed for wastewater.

However, the solids treatment tank 100, the oil-water separation treatment tank 200, the sterilization treatment tank 300, and the fine foreign matter treatment tank 400 do not necessarily need to be sequentially arranged at the same time. It is also possible to implement a wastewater treatment device that performs only the process.

Hereinafter, the process performed in each treatment tank will be described in detail.

The solids treatment tank 100 may provide a space (S1) for storing wastewater flowing through the inlet 102, so that the treated water in the solids treatment process for the wastewater is discharged through the outlet 104 It may be a treatment tank.

The solids treatment process may be performed by the solids separation filter 110 disposed in the space S1 provided by the solids treatment tank 100.

The solids separation filter unit 110, before the wastewater flowing into the space (S1) is discharged through the outlet 104, the solids treatment process proceeds, the outlet (104) of the space (S1) Can be placed on the side.

Here, the solids treatment process is the process of removing the solids present in the wastewater as the wastewater passes through the solids separation filter unit 110 and the solids separation filter unit until the wastewater is discharged through the discharge port 104 It may mean a process in which oil particles are adsorbed and grown and separated by retention in (110).

To this end, the solids separation filter unit 110 (see FIG. 3) has a predetermined internal space SS1 and a passage hole through which the wastewater flowing through the inlet 102 passes through the internal space SS1. It is provided with (H1), so that the process of removing the solids present in the wastewater in the process of the wastewater introduced through the inlet 102 passes through the passage hole (H1), the outlet 102 side After the solid matter separation filter frame 112 installed in the filter and the wastewater pass through the through hole H1, the oil particles are adsorbed and grown and separated in the process of passing through the internal space SS1. Preferably, the ultra-high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) may include an oil adsorption filter unit 114 made of a material containing.

The treated water in which solids are separated by the solids separation filter unit 110 may be introduced into the oil / water separation treatment tank 200 through the outlet 104 of the solids treatment tank 100.

Here, the outlet 104 may be an inlet 202 of the oil and water separation treatment tank 200, the inlet 202 is in the form of a pipe toward the bottom surface of the oil and water separation treatment tank 200 It may extend to the lower portion of the separation filter unit 210.

The oil / water separation treatment tank 200 may provide a space S2 for storing wastewater introduced through the inlet 202, and the treated water in which the oil / water separation process for the wastewater proceeds is discharged through the discharge port 204 It may be a processing tank to be possible.

The oil separation filter unit 210 is made of a material including ultra high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) and is a filter disposed under the space S2 of the oil and water separation treatment tank 200, and the space ( Before the wastewater introduced into S2) is discharged through the outlet 204, the oil-water separation process may be performed.

Here, the oil-water separation process may refer to a process in which the oil particles are adsorbed and grown by the retention while the wastewater passes through the oil separation filter unit 210 and is floated by a specific gravity difference.

The oil particles grown by the oil separation filter unit 210 in the oil and water separation treatment tank 200 float and eventually form an oil layer L1 in the oil and water separation treatment tank 200, and formed through this process. The oil layer L1 is extracted to the outside through an oil inlet portion 220 (see FIG. 6) and a path forming portion 222 (see FIG. 6), which will be described later.

Meanwhile, the treated water constituting the lower layer of the oil layer in the oil-water separation treatment tank 200 may be introduced into the sterilization treatment tank 300 through the discharge port 204.

Here, the outlet 204 of the oil-water separation treatment tank 200 may be an inlet 302 of the sterilization treatment tank 300, the inlet 302 in the form of a tube the sterilization treatment tank 300 It can be extended to the bottom of the redox filter unit 310 toward the bottom surface of the.

Redox constituting the redox filter unit 310 does not use any energy or chemicals, and controls the size and speed of the redox reaction through an appropriate combination of a large number of different metals. It is a material that enables eco-friendly treatment of wastewater without causing secondary pollution by using the natural electrochemical reaction that occurs.

The redox reaction by the redox filter unit 310 sterilizes algae and fungi, decomposes and removes hydrogen sulfide and aldehyde-based odor-causing substances, prevents adhesion by particleizing ions such as calcium and magnesium, and prevents co-precipitation reactions. It can remove more than 80-90% of the phosphorus contained in the waste water.

In addition, the redox filter unit 310 removes heavy metals by forming and sedimenting salts through reaction with dissolved heavy metals in wastewater, decomposing and removing organic substances of residual pesticide components in the oxidation-reduction process, and with residual chlorine in water. It is removed through the reaction, and is effective in improving emulsification and turbidity.

In addition, while passing through the redox filter unit 310, the lactic acid-reducing bacteria contained in the wastewater can be sterilized, and the treated water in which the lactic-acid-reducing bacteria is sterilized is introduced into the micro foreign matter treatment tank 400 through the outlet 304. You can.

On the other hand, the redox filter unit 310 may be arranged in a vertically upright state on the inlet 302 side of the sterilization treatment tank 300, in which case the inlet 302 must be sterilized in the form of a tube. It will not be necessary to extend downward toward the bottom surface of the treatment tank 300.

In other words, in the above case, the inlet 302 may not be in the form of a tube, and even in the form of a tube, it is disposed in an upright state without extending downward toward the bottom surface of the sterilization tank 300 A structure facing the redox filter unit 310 may be used.

The outlet 304 of the sterilization treatment tank 300 may be an inlet 402 of the fine foreign substance treatment tank 400, and the inlet 402 is a tube in the form of the fine foreign substance treatment tank 400. It may extend toward the bottom of the fine foreign matter treatment filter unit 410 to the bottom.

The fine foreign matter treatment filter unit 410 may be a kind of non-woven fabric aggregate, and as the wastewater passes through the fine foreign matter treatment filter unit 410, the fine foreign matter contained in the wastewater may be treated, and the treated water treated with the fine foreign matter is discharged. It can be discharged to the outside through (404).

As described above, the wastewater treatment apparatus 10 according to an embodiment of the present invention is a technology that serves as a background of the invention by allowing solids to be treated, wastewater to be separated, and to treat micro-foreign substances at the same time as the wastewater is sterilized. You can effectively solve all the problems described in the section.

Meanwhile, the wastewater treatment apparatus 10 according to an embodiment of the present invention uses a separate energy by setting a height difference between the inlets 102, 202, 302, 402 and the outlets 104, 204, 304, 404 of each treatment tank. Without flowing naturally to the treatment tank for the next process, more efficient wastewater treatment can be possible, and the number of inlets (102, 202, 302, 402) and outlets (104, 204, 304, 404) of each treatment tank varies. Can be changed.

FIG. 2 is a view for explaining a flow rate reduction unit provided to a wastewater treatment apparatus according to an embodiment of the present invention, and is a schematic enlarged view of part A of FIG. 1.

Referring to FIG. 2, the flow rate reduction unit 120 provided to the wastewater treatment apparatus 10 according to an embodiment of the present invention increases the inflow amount of wastewater flowing through the inlet 102 of the solids treatment tank 100 Due to the increase in the flow rate due to the decrease in the residence time in the solids separation filter unit 110, the performance of the solids treatment process is prevented, the inlet 102 side of the space (S1) in the solids treatment tank 100 It is disposed in can reduce the flow rate of the wastewater flowing through the inlet 102.

Here, a brief description of the conventional wastewater treatment apparatus in which the flow rate reduction unit 120 provided to the wastewater treatment apparatus 10 according to the present invention is removed is such that a large amount of wastewater is introduced suddenly through the inlet of the solids treatment tank. When the flow rate increases, the discharge rate and the discharge flow rate of the wastewater flowing into the next water treatment separation tank, which is the next treatment tank, become faster.

In this case, the residence time required for the wastewater to pass through the solid separation filter portion is shortened, and the adsorption, growth and separation performance of the oil particles by the solid separation filter portion must be reduced.

In other words, since the solid separation filter unit is implemented as a material containing ultra high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) that retains the oil particle adsorption properties as described above, the separation performance of oil particles is improved through adsorption and growth of oil particles For this, a certain residence time is required for the wastewater to pass through the solid separation filter unit.

However, when a large amount of wastewater is suddenly introduced through the inlet of the solids treatment tank, the discharge flow rate of the wastewater flowing into the oil-water separation treatment tank becomes faster, and separation of oil particles through adsorption and growth of oil particles due to reduced residence time Performance is degraded.

For the above reasons, the present invention can solve the problem that the residence time is shortened through the flow rate reduction unit 120 disposed at the inlet 102 side of the space S1 in the solids treatment tank 100.

The flow rate reduction unit 120 is fixed to the inlet 102 side through a fixing means 101 such as a rod shape fixed to the inner wall constituting the solids treatment tank 100, the inlet of the solids treatment tank 100 After the wastewater flowing through (102) collides, the direction of travel can be changed within a range of acute angles, and one surface of the wastewater flowing through the inlet 102 may have a curvature.

In addition, the flow rate reduction unit 120 may be spread radially toward the outlet 104 after the wastewater flowing through the inlet 102 hits it, and for this purpose, the inlet of the solids treatment tank 100 One surface of the wastewater flowing through the (102) may be formed to correspond to at least a portion of the spherical outer surface, and may be specifically formed into a hollow hemisphere.

However, the flow rate reduction part 120 is not necessarily formed in a hemispherical shape, and after the wastewater flowing through the inlet 102 hits it, a cone capable of spreading radially toward the outlet 104, It is revealed that it is possible to deform into various shapes such as a truncated cone, triangular pyramid, triangular pyramid, quadrangular pyramid, quadrangular pyramid.

As described above, the wastewater treatment apparatus 10 according to the present invention suddenly increases the inflow of wastewater by the flow rate reduction unit 120 disposed at the inlet 102 side of the space S1 in the solids treatment tank 100. Even in this case, there is a remarkable effect of preventing the deterioration of the purification function by controlling the flow rate.

FIG. 3 is a view for explaining a solid separation filter unit provided in a wastewater treatment apparatus according to an embodiment of the present invention, and is a schematic enlarged view of part B of FIG. 1, and FIGS. 4 and 5 are embodiments of the present invention It is a schematic perspective view for explaining the oil adsorption filter portion of the solid separation filter portion provided in the wastewater treatment apparatus according to the example.

3 to 5, the solids separation filter unit 110 for the solids processing process in the solids processing tank 100 is the discharge port 104 of the solids processing tank 100 as described with reference to FIG. A solid separation filter frame 112 installed on the side and an ultra-high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) may include an oil adsorption filter unit 114 made of a material.

Here, the solids separation filter frame 112 is provided with a predetermined inner space (SS1) and a passage hole (H1) for the wastewater flowing through the inlet 102 to pass through the inner space (SS1) In addition, it may be a type of perforated plate assembly that allows the process of removing solids present in the wastewater while the wastewater introduced through the inlet 102 passes through the through hole H1.

In addition, the oil adsorption filter unit 114 so that the oil particles are adsorbed, grown and separated in the process of passing through the internal space SS1 after the wastewater passes through the passage hole H1. , It may be a kind of filter implemented with a material including ultra high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE).

The ultra-high molecular polyethylene is a material having a specific gravity of 0.85 to 0.95 and a molecular weight of 6 to 11 million, high abrasion resistance, impact resistance and self-lubricating property, strong chemical resistance and weather resistance, non-toxic, non-absorbent, electrical insulation and high frequency There are characteristics.

Of course, the ultra-high molecular polyethylene used in the present invention may be applicable if the separation process of oil is possible due to adsorption and growth of oil particles, even if it is outside the range of specific gravity and molecular weight described above.

The solids separation filter frame 112 is opened for the insertion of the oil adsorption filter unit 114 into the interior space SS1, but the lower side is closed, and the lower side is fixed, and is fixed on one surface of the solids treatment tank 100 Can be.

When the wastewater passes through the through hole SS1 of the solid separation filter frame 112, solids larger than the size of the through hole SS1 are not passed through and are filtered out. 100) and can be removed later by artificial work.

On the other hand, the oil adsorption filter unit 114 is implemented in the form of a module for washing the material containing the ultra-high molecular polyethylene can be withdrawn at once from the internal space (SS1) provided by the solid separation filter frame 112 Thus, it can be disposed detachably in the interior space.

Conventionally, the ultra-high molecular polyethylene filter, which functions as the oil adsorption filter unit, was manufactured in a very small unit, and then poured into a filter body that functions as a solid separation filter frame to implement a solid separation filter unit. There was a problem that the worker had to enter the filter cylinder and manually pump up the ultra-high-molecular-weight polyethylene filter using a tool such as a shovel.

However, in the present invention, since the oil adsorption filter unit 114 is implemented in a single module form, if cleaning is required, the oil adsorption filter unit 114 is used to remove the solids filter frame 112 using a large lifting device such as a crane. ), You can effectively solve the problems of the prior art.

On the other hand, the oil adsorption filter unit 114, as shown in Figures 4 and 5, the ultra-high molecular polyethylene material is manufactured in the form of a thread, and then wound on a mold 1118 of a predetermined shape to prepare an oil adsorption filter unit ( 1114) may be connected to each other to be implemented in the form of the module.

Here, the meaning that the ultra-high molecular polyethylene material is manufactured in the form of a thread may mean not only the form of a single strand, but also the form of a thread formed by twisting several strands of each other.

The frame 1118 includes a first annular frame 1115, a second annular frame 1116 spaced apart from the first annular frame 1115, and the first annular frame 1115 and the second annular frame ( 1116) may include a plurality of connecting frames 1117, for example, the connecting frame 1117 may be eight.

The connecting frame 1117 may form a portion in close contact with each other between the first annular frame 1115 and the second annular frame 1116, and the abutted portion is in point contact as shown in FIG. 4 (a). It may be in the form of close contact, as shown in Figure 4 (b) may be in close contact in the form of a line contact.

In the connection frame 1117, ultra-high molecular polyethylene manufactured in the form of a thread may be wound, and the oil adsorption filter unit 1114, which is completed after winding is completed, has a substantially cylindrical shape, and the oil adsorption filter unit ( When 1114) is connected to each other by adhesion or the like, the oil adsorption filter unit 114 is finally completed.

Here, the shape of the oil adsorption filter unit 1114 formed by winding the ultra-high molecular polyethylene manufactured in the form of a thread in the connection frame 1117 is not limited to the above-described cylindrical shape, and an appropriate amount of winding according to the experimental value Depending on the shape of an hourglass shape similar to the shape of the original connecting frame 1117 or a convex shape at the center, it may be used.

On the other hand, the number of the oil adsorption filter unit 1114 for completing the oil adsorption filter unit 114 is not particularly determined, considering the size of the internal space SS1 of the solid separation filter frame 112, etc. It can be adjusted accordingly.

As the ultra-high molecular polyethylene manufactured in the form of a thread is wound on a connecting frame 1117 to produce the oil adsorption filter unit 1114, the oil adsorption filter unit 114 is oil particles during the residence time of wastewater. It can improve the separation performance of oil particles through adsorption and growth of.

Here, in order to maximize the separation performance of oil particles through adsorption and growth of oil particles during the residence time of wastewater by the oil adsorption filter unit 114, a funnel shape in the space provided by the connecting frame 1117, etc. A plurality of members may be inserted.

The plurality of members can increase the residence time as much as the wastewater passing through the oil adsorption filter unit 1114 is discharged to the side of ultra-high molecular polyethylene produced in the form of a seal.

As described above, the wastewater treatment apparatus 10 according to the present invention realizes that the oil adsorption filter unit 114 is detachably attached to the solids separation filter frame 112, so that washing can be greatly facilitated compared to the prior art. There is.

FIG. 6 is a view for explaining a device for extracting oil separated by a wastewater treatment device according to an embodiment of the present invention, and is a schematic enlarged view of part C of FIG. 1.

1 and 6, the wastewater treatment apparatus 10 according to the present invention is an oil and water separation treatment tank providing a space (S2) for storing and storing the treated water in which the solids treatment process is completed from the solids treatment tank 100 It may include (200).

The wastewater introduced into the oil-water separation treatment tank 200 may be separated by an oil-water separation process by an oil separation filter unit 210 disposed in the lower portion of the space S2, and the process of separating oil particles may be performed. The oil particles may float due to a specific gravity difference to form an oil layer (L1).

That is, during the residence in the process of the wastewater passing through the oil separation filter unit 210 having the same composition and effect as the oil absorption filter unit 114 described with reference to FIGS. 3 to 5, the oil particles are adsorbed and grown and separated. And eventually, it floats to form an oil layer (L1).

Here, the oil layer (L1) formed by the rise of the oil particles is introduced into the external storage space by the oil inlet portion 220 and the path forming portion 222 to facilitate management such as disposal of the extracted oil at the same time It may be possible to reuse according to, it will be described in detail below.

The oil inlet 220 is located in the oil layer (L1) formed by the rise of the oil particles in the space (S2) of the oil separation tank 200, the oil constituting the oil layer (L1) As a component to be introduced, the upper and lower portions may be formed in an open cup shape.

In addition, the path forming part 222 is connected to communicate with the oil inlet part 220 to provide a path for the oil introduced through the oil inlet part 220 to be discharged to an external storage space (not shown). It may be a kind of flexible tube provided.

The path forming portion 222 may vary in the path depending on the oil inlet portion 220 whose position is determined based on the height at which the oil layer L1 is formed, which may be due to flexible properties. .

Meanwhile, a first wing portion 224 and a second wing portion 226 may be mounted on the oil inlet portion 220, and the first wing portion 224 may be a space in the oil and water separation treatment tank 200. (S2) the collision of the oil particles floating in the water or the process water in which the water separation process has been performed is rotated by a flow to be discharged through the outlet 204 so that the flow in the rotational direction is induced around the oil inlet 220. It can be a kind of impeller.

The first wing portion 224 is naturally rotated by floating oil particles or treated water in which an oil-water separation process has been performed. As a result, the flow in the direction of rotation of the oil layer around the cup-shaped oil inlet portion 220 is caused. Can be induced.

Here, when the flow in the rotational direction is induced around the oil inlet 220 by the rotation of the first wing portion 226, the second wing portion 226 rotates the oil by the rotation. It can be seen that the oil constituting the oil layer L1 is smoothly introduced into the oil inlet 220 by facing the inlet 220.

Thus, the second wing portion 226 may be formed in a shape opposite to the shape of the first wing portion 224, and the size of the second wing portion 226 is the first wing portion 224 It can be formed relatively smaller than the size of.

The oil inlet portion 220 may also be rotated by the first wing portion 224 and the second wing portion 226 rotated by the floating oil particles or the treated water in which the oil-water separation process has been performed. The inlet portion 220 is connected to the path forming portion 222 to allow free rotation based on the path forming portion 222.

On the other hand, the first wing portion 224 and the second wing portion 226 may be located on the boundary of the layer other than the oil layer (L1) and the oil layer (L1), for this purpose the first The wing portion 224 and the second wing portion 226 may have a specific gravity greater than that of the oil layer L1 but smaller than that of the layer L2 other than the oil layer.

Since the first wing portion 224 and the second wing portion 226 are located on the boundary between the oil layer L1 and the layer L2 other than the oil layer L1, the oil inflow portion ( 220) only the oil constituting the oil layer (L1) is introduced.

As described above, the oil layer L1 formed in the oil-water separation treatment tank 200 is smoothly introduced into the oil inlet part 220 by rotation of the first wing part 224 and the second wing part 226. Since it flows into the external storage space through the forming part 222, it has a remarkable effect in terms of the ease of extraction of oil, management aspects such as disposal of the extracted oil, and reuse.

7 is a view for explaining a modification of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention, a schematic schematic enlarged view of a portion A of Figure 1, Figure 8 is the present invention It is a schematic plan view as viewed from above with respect to a modified example of the solid separation filter unit provided in the wastewater treatment apparatus according to an embodiment, and is a schematic sectional view taken along line AA in FIG. 7.

In addition, Figure 9 is a schematic cross-sectional view for explaining the principle of spraying, such as washing water to the seal unit assembly in a modified example of the solid separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention.

7 to 9, the solids separation filter unit 110 disposed at the outlet 104 side of the solids treatment tank 100 includes the solids separation filter frame 112 and oil described with reference to FIGS. 3 to 5. An adsorption filter unit 130 may be included.

The oil adsorption filter unit 130 may include a seal unit combination 132 made of a material containing ultra-high molecular polyethylene, and the seal unit combination 132 is manufactured of a number of ultra-high molecular polyethylene materials in the form of a seal. It may be a combination that is disposed in each other in the horizontal direction, vertical direction and / or inclined direction.

Here, the meaning that the ultra-high molecular polyethylene material is manufactured in the form of a thread may mean not only the form of a single strand, but also the form of a thread formed by twisting several strands of each other.

The oil adsorption filter unit 130 may further include a first support unit 134, a second support unit 136, and / or a third support unit 138.

The first support part 134 supports the seal unit assembly 132, and a lifting device such as a crane is connected to connect the seal unit assembly 132 from the internal space SS1 of the solid separation filter frame 112 at one time. It can be a kind of hollow frame that makes it withdrawn.

In other words, the first support part 134 may be a hollow tube or a polygonal tube with a hollow.

The second support part 136 may be a kind of seating frame that supports the seal unit assembly 132 and allows the seal unit assembly 132 to be disposed from the bottom of the solids separation filter frame 112.

The third support part 138 may be a flexible wire connected to the first support part 134 and the second support part 136, a fiber in the form of a thread, and / or an ultra-high molecular polyethylene material manufactured in the form of a thread. have.

Here, some of the thread strands made of the ultra-high molecular polyethylene material constituting the seal unit assembly 132 may be connected to and supported by a pair of third support parts 138, which constitutes the seal unit assembly 132 The other part of the yarn strand made of ultra-high molecular polyethylene material may be connected to the first support portion 134 and the second support portion 136 to have a final lattice shape.

However, the pattern formed by the thread strands made of the ultra-high molecular polyethylene material constituting the thread unit combination 132 is not limited to the lattice shape, and various patterns can be formed due to the arrangement change of the thread strands. .

For example, the thread strands made of the ultra-high molecular polyethylene material constituting the seal unit combination 132 may be connected only to a pair of third support parts 138, and the first support part 134 and the second support part It may be connected only to 136.

In addition, a number of yarn strands made of the ultra-high molecular polyethylene material constituting the yarn unit combination 132 may be entangled with each other by a weaving method as shown in FIG. 7.

Here, the seal unit combination 132 may be implemented in a plurality of rows.

On the other hand, the first support part 134 is an inner space (SS2) for supplying at least one of the washing water for washing and compressed air for washing to the seal unit assembly 132, and at least one of the washing water and the compressed air A plurality of injection holes H2 for one injection may be provided.

The injection hole (H2) is at least one of the compressed water for washing water and washing, if you want to wash the seal unit combination 132 made of ultra-high molecular polyethylene material for adsorption, growth and separation of the oil particles contained in the wastewater One may be a component for spraying toward the seal unit combination 132.

To this end, the injection hole H2 may be formed in a direction toward the seal unit combination 132.

The first support portion 134 may include at least one injection hole not shown to allow the washing water and / or compressed air for washing to be injected into the internal space SS2 of the first support portion 134, The injection hole may be implemented in the form of a hollow tube formed extending from the first support 134.

When the compressed water for washing water and / or washing is to be injected into the seal unit combination 132 through the injection hole and the injection hole H2, the oil adsorption filter unit 130 is disposed in the solid separation filter frame It may be performed after withdrawal from the internal space SS2 of 112, and the oil adsorption filter unit 130 may proceed in a state located in the internal space SS2 of the solid separation filter frame 112.

Compressed air for washing water and / or washing through the injection hole and the injection hole H2 while the oil adsorption filter unit 130 is located in the internal space SS2 of the solid separation filter frame 112 In the case of spraying the seal unit combination 132, it will be desirable to proceed after blocking the inflow of wastewater into the solids treatment tank 100.

Meanwhile, the oil adsorption filter unit 130 is connected to the first support unit 134 so that the first support unit 134 is located based on the height of the wastewater in the interior space SS1 of the solids separation filter frame 112. A floating portion 139 to be changed may be further included.

The floating portion 139 is a kind of buoyancy body, and when the height of the wastewater in the interior space SS1 increases, the first support portion 134 is raised to expand the seal unit assembly 132, and the interior space SS1 When the height of the wastewater in) is lowered, the first support part 134 may be lowered so that the seal unit combination 132 is folded.

This is due to the third support 138 having flexible properties.

When the height of the wastewater in the internal space SS1 is lowered by the state change of the seal unit combination 132 by the floating portion 139, the seal unit combination 132 is folded and adsorbs oil particles. During the residence time for the back, the area of the ultra-high molecular polyethylene material that the wastewater comes into contact with becomes large, so that the separation performance of the oil particles through adsorption and growth of the oil particles is improved.

Here, the floating portion 139 is set in the horizontal direction in the interior space (SS1) of the solid separation filter frame 112, the first support 134 and the seal unit combination 132 ) May limit the range of movement in the horizontal direction in the interior space.

Due to the floating portion 139, the seal unit assembly 132 can maintain a stable arrangement.

On the other hand, the second support 136 is the first support 134 and the seal unit assembly 132 by the floating unit 139 despite the lifting of the seal unit assembly 132, the solid separation filter It can be arranged from the bottom of the frame 112.

In other words, the second support portion 136 is the seal unit combination 132 is the bottom of the solid separation filter frame 112 regardless of the position change of the first support portion 134 by the floating portion 139 By being arranged from, it is possible to implement a stable arrangement state of the seal unit combination (132).

FIG. 10 is a schematic perspective view for explaining a principle in which an oil adsorption filter is mounted on a solid separation filter frame provided in the solid separation filter shown in FIG. 7.

Referring to FIG. 10, the oil adsorption filter unit 140 may be configured to have the floating unit 139 removed when compared with the oil adsorption filter unit 130 described with reference to FIGS. 7 to 9.

That is, the oil adsorption filter unit 140 according to FIG. 10 can maintain a constant state regardless of the height of the wastewater in the interior space SS1 of the solid separation filter frame 112, that is, the seal unit combination 142 Can maintain a constant state regardless of the height of the wastewater in the interior space SS1 of the solids separation filter frame 112.

To this end, when the oil adsorption filter 140 is inserted into the interior space SS1 of the solids separation filter frame 112, the first support 144 may be fastened to the solids separation filter frame 112 to be fixed. have.

The principle in which the first support part 144 is fixed to the solid separation filter frame 112 may be various, for example, as illustrated in FIG. 10, the protrusion 144a is attached to the first support part 144. By forming and forming a groove 144b in the solid separation filter frame 112, the principle in which the protrusion 144a is seated on the groove 144b can be used.

Here, the shapes of the protrusions 144a and the grooves 144b may be variously changed.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited to this, and various modifications or changes can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art, and thus, such changes or modifications are found to fall within the scope of the appended claims.

On the other hand, the wastewater treatment apparatus 10 according to the present invention can be linked to an automatic water quality analyzer for analyzing water quality, and analyzes the water quality of wastewater in each treatment tank 100, 200, 300, 400 through the automatic water quality analyzer. Alternatively, the water quality of wastewater flowing into the solids treatment tank 100 may be analyzed. In addition, the water quality of the final treated water discharged from the fine foreign matter treatment tank 400 may also be analyzed.

Here, the wastewater treatment apparatus 10 according to the present invention further includes a sensor for measuring various harmful gases, such as an oil detector or a carbon dioxide detection sensor, to secure the water quality data of the wastewater while remotely monitoring the water quality, and Industrial accidents can be prevented.

10: wastewater treatment device
100: solids treatment tank
110: solid separation filter unit
120: flow rate reduction
200: oil-water separation treatment tank
210: oil separation filter unit
220: oil inlet
300: sterilization treatment tank
310: redox filter unit
400: fine foreign matter treatment tank
410: fine foreign matter filter unit

Claims (6)

In the wastewater treatment device for purifying wastewater through a purification process,
An oil / water separation treatment tank that provides a space for storing the wastewater introduced through the inlet, and allows the treated water to be discharged through the outlet to be discharged through the outlet;
The oil disposed in the lower part of the space is made of a material containing ultra-high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) so that the oil-water separation process proceeds before the wastewater flowing into the space is discharged through the outlet. Separation filter unit-The oil-water separation process is a process in which the oil particles are adsorbed and grown by residence while the wastewater passes through the oil separation filter unit, and is floated by a specific gravity difference-;
An oil inlet part positioned in an oil layer formed by the floating of the oil particles in the space to allow oil constituting the oil layer to flow in; And
It includes; a path forming unit connected to communicate with the oil inlet, and providing a path for the oil introduced through the oil inlet to be discharged to an external storage space.
The path forming unit,
Wastewater treatment apparatus characterized in that the path is changed according to the oil inlet portion is positioned based on the height of the oil layer is formed in the space.
According to claim 1,
The oil inflow so that the impact of the oil particles floating in the space or the treated water in which the oil-water separation process has proceeded is rotated by a flow for discharging through the discharge port, so that a flow in a rotational direction is induced around the oil inlet. Wastewater treatment apparatus further comprising; a first wing portion mounted to the part.
According to claim 2,
When a flow in the rotational direction is induced around the oil inlet portion by rotation of the first wing portion, oil constituting the oil layer by directing the flow toward the oil inlet portion by rotation smoothly flows into the oil inlet portion. Wastewater treatment apparatus characterized in that it further comprises; a second wing portion mounted to the oil inlet, so as to flow.
According to claim 2,
The first wing portion,
Wastewater treatment apparatus, characterized in that located on the boundary between the oil layer and the layer other than the oil layer.
According to claim 2,
The first wing portion,
Wastewater treatment apparatus characterized in that the specific gravity is larger than the oil layer but smaller than the layer other than the oil layer.
According to claim 1,
The oil inlet,
Wastewater treatment apparatus characterized in that it is connected to the path forming portion to enable free rotation relative to the path forming portion.

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