KR20200011268A - Wastewater treatment apparatus - Google Patents

Abstract

According to an embodiment of the present invention, wastewater treatment equipment to purify wastewater through a purification process includes: an oil/water separation treatment tank which provides a space to store wastewater introduced through an inlet and discharges treated water after the oil/water separation process of the wastewater through an outlet; an oil separation filter unit which is implemented with a material including ultra-high molecular weight polyethylene and is disposed in the lower part of the space so that the oil/water separation process proceeds before the wastewater introduced to the space is discharged through the outlet, wherein the oil/water separation process is a process in which the wastewater passes through the oil separation filter unit and oil particles are adsorbed and grown by residence and are floated by a specific gravity difference; an oil inlet unit which is positioned on an oil layer formed by the floating of the oil particles in the space and allows oil forming the oil layer to flow in; and a path forming unit which is connected to communicate with the oil inlet unit and provides a path so that the oil introduced through the oil inlet unit is discharged to an external storage space. In the path forming unit, the path varies depending on the oil inlet unit whose position is determined based on the height at which the oil layer is formed in the space. The present invention provides convenience in management while allowing the reuse of extracted oil according to purposes.

Description

Wastewater treatment apparatus

The present invention relates to a wastewater treatment apparatus, and more particularly, to separate the oil component by the natural flow of wastewater introduced through the inlet port and to discharge the treated water sterilized by other harmful bacteria such as lactate reducing bacteria and / or Escherichia coli. It relates to a wastewater treatment apparatus.

In general, oil-containing waste water causes water pollution, odors and industrial disasters, and causes oil pollution, causing air pollution and respiratory diseases.

For this reason, various methods have been proposed for separating the oil components contained in the wastewater, among which the removal by oil and water specific gravity and the removal by Stokes law based on the flow of the mixture by buoyancy. There is this.

Here, the removal method by the specific gravity difference between oil and water is relatively easy to separate when the oil droplet size is 1mm or more, but oil droplets with a diameter of 1 to 1.5 μm that are split through the fluid flow take a long time. This results in too much processing efficiency.

In addition, the method of removing by Stokes law based on the flow of the mixture according to the buoyancy is a type of coalescing plate pack that expands the effective contact area by installing several horizontal plates or parallel inclined plates in the treatment tank, Contaminated water containing components is passed through a combination of polyplophylen-based corrugated or egg-shaped plates in multiple stages.

However, the long-term use of this method results in the deposition of viscous sludge combined with oil components and suspended solids between the multi-stage corrugated boards or egg boards, which hinders the passage of fluid.

This disruption of the fluid flow delays the oil / water separation treatment, which in turn leads to a decrease in treatment efficiency.

On the other hand, in the case of wastewater containing Lactobacillus or Escherichia coli as well as wastewater containing oil, Lactobacillus reducing bacteria multiply explosively in oil, causing enormous damage by corroding metals and concrete facilities, etc. Extreme odors can threaten life hygiene and cause complaints.

In addition, in the case of wastewater containing other harmful bacteria such as E. coli, water-induced diseases will cause damage.

Therefore, there is a need to develop an apparatus for discharging the treated water separated from the oil component contained in the wastewater and sterilizing other harmful bacteria such as Lactobacillus reducing bacteria and / or Escherichia coli in a more effective manner than the conventional method.

An object of the present invention is to facilitate the cleaning of the filter while the oil component is separated by the natural flow of the wastewater introduced through the inlet and discharged the treated water sterilized by other harmful bacteria such as lactobacillus and / or Escherichia coli. It is to provide a wastewater treatment apparatus.

In addition, another object of the present invention is to provide a wastewater treatment apparatus that prevents the deterioration of the purification function by adjusting the flow rate even when the inflow of wastewater increases abruptly.

In addition, another object of the present invention is to provide a wastewater treatment apparatus to efficiently extract the oil components separated from the wastewater to provide a convenience of management and to reuse the extracted oil according to the purpose.

The wastewater treatment apparatus according to an embodiment of the present invention is a device for purifying wastewater through a purification process, and provides a space for storing the wastewater introduced through an inlet, and the oil / water separation process for the wastewater is performed. An oil-water separation treatment tank for discharging the treated water through the discharge port; Before the wastewater introduced into the space is discharged through the outlet, the oil-water separation process is carried out, a material comprising ultra high molecular weight polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE), the oil disposed in the lower portion of the space Separation filter unit-The oil-water separation process is a process in which oil particles are adsorbed and grown by retention while the waste water passes through the oil separation filter unit, and is floated due to specific gravity difference; An oil inlet part positioned in an oil layer formed by the floating of the oil particles in the space, such that oil constituting the oil layer is introduced; And a path forming part connected to communicate with the oil inflow part to provide a path for discharging the oil introduced through the oil inflow part to an external storage space, wherein the path forming part comprises the path in the space. The path may vary according to the oil inflow portion whose position is determined based on the height at which the oil layer is formed.

The wastewater treatment apparatus according to an embodiment of the present invention is rotated by a flow for discharging the oil particles, which are floating in the space or the treated water subjected to the oil-water separation process through the discharge port, surrounding the oil inlet portion. It may be characterized in that it further comprises; a first wing portion mounted to the oil inlet so that the flow in the rotational direction to guide.

In the wastewater treatment apparatus according to an embodiment of the present invention, when the flow in the rotational direction is induced around the oil inlet by the rotation of the first wing, the flow is directed toward the oil inlet by rotation. It may further comprise a; 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 of the wastewater treatment apparatus according to an embodiment of the present invention may be located on a boundary between the oil layer and layers other than the oil layer.

The first wing of the wastewater treatment apparatus according to an embodiment of the present invention may have a specific gravity greater than that of the oil layer but smaller than layers other than the oil layer.

The oil inlet part of the wastewater treatment apparatus according to an embodiment of the present invention may be connected to the path forming part so as to allow free rotation based on 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 the wastewater introduced through the inlet port and the filter water is discharged while discharging the treated water sterilized by other harmful bacteria such as lactate reducing bacteria and / or Escherichia coli. This can be done easily.

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

In addition, it is possible to efficiently extract the oil components separated from the waste water to provide convenience of management and to enable 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 part provided in a wastewater treatment apparatus according to an embodiment of the present invention, and schematically enlarged view of a portion A of FIG. 1.
Figure 3 is a view for explaining the solid separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention, a schematic enlarged view of portion B of FIG.
4 and 5 is a schematic perspective view 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.
FIG. 6 is a diagram for explaining an apparatus for extracting oil separated by a wastewater treatment apparatus according to an embodiment of the present invention, and schematically showing a portion 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 the portion A of FIG.
Figure 8 is a schematic plan view from above of a modification of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention.
9 is a schematic cross-sectional view for explaining the principle of spraying the washing water and the like to the seal unit assembly in a variation of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention. According to the schematic cross section.
FIG. 10 is a schematic perspective view for explaining a principle in which an oil adsorption filter unit is mounted on a solids separation filter frame provided in the solids separation filter unit shown in FIG. 7; FIG.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may further degenerate other inventions or the present invention by adding, changing, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be easily proposed, but they will also be included within the scope of the inventive concept.

In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment 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, the solids treatment tank 100 for the solids treatment process for the wastewater, The oil-water separation tank 200 for the oil-water separation process, the sterilization tank 300 and the micro foreign matter treatment process for the other bactericidal bactericidal processes such as E. coli, which cause lactate reducing bacteria and / or waterborne diseases, are performed. It may include a micro foreign matter treatment tank 400 to proceed.

For convenience of explanation, hereinafter, 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 germs such as Lactobacillus reducing bacteria and / or E. coli causing water-soluble diseases The process is called Lactobacillus Reduction Sterilization.

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 are sequentially arranged to flow through the inlet 102 of the solids treatment tank 100. Solid wastewater treatment process, oily water separation process, Lactobacillus reducing bacteria sterilization process and fine foreign matter treatment process can be sequentially performed for the wastewater.

However, the solids treatment tank 100, the oil-water separation treatment tank 200, the sterilization treatment tank 300 and the fine foreign substance treatment tank 400 do not necessarily need to be sequentially disposed at the same time, each independently disposed and each A wastewater treatment apparatus may be implemented to process only the process.

Hereinafter, the process performed in each processing tank is demonstrated concretely.

The solids treatment tank 100 may provide a space (S1) for storing the wastewater introduced through the inlet 102, so that the treated water subjected to 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 unit 110 disposed in the space S1 provided by the solids treatment tank 100.

The solids separation filter unit 110 is the discharge hole 104 of the space (S1) so that the solids treatment process, before the waste water introduced into the space (S1) is discharged through the discharge port (104). Can be placed on the side.

Here, the solids treatment process is the process of removing the solids present in the waste water while the waste water passes through the solids separation filter unit 110 and the solids separation filter unit until the waste water is discharged through the outlet 104 The oil particles may be adsorbed, grown, and separated by the retention in 110.

To this end, the solid separation filter unit 110 (refer to FIG. 3) has a predetermined internal space SS1 and a passage hole through which the wastewater introduced through the inlet 102 passes through the internal space SS1. (H1) is provided, so that the process of removing the solids present in the waste water in the course of passing the waste water introduced through the inlet 102, the passage hole (H1), the outlet 102 side Solid separation filter frame 112 installed in the, and after the waste water passes through the passage hole (H1), the process of separating the oil particles are adsorbed, grown in the process of passing through the internal space (SS1) is in progress Preferably, it may include an oil adsorption filter unit 114 implemented of a material containing ultra high molecular weight polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE).

The treated water in which the solids separation is completed 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 the inlet 202 of the oil and water separation treatment tank 200, the inlet 202 is oil toward the bottom surface of the oil and water separation treatment tank 200 in the form of a pipe. It may extend to the bottom of the separation filter unit 210.

The oil / water separation treatment tank 200 may provide a space S2 for storing the wastewater introduced through the inlet 202, and the treated water discharged through the oil / water separation process for the wastewater is discharged through the outlet 204. It may be a treatment tank to make.

The oil separation filter unit 210 is implemented as a material including ultra high molecular weight polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE), the filter is disposed in the lower portion of the space (S2) of the oil-water separation tank 200, the space ( Before the wastewater introduced into S2) is discharged through the discharge port 204, the oil / water separation process may be performed.

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

The oil particles grown by the oil separation filter unit 210 in the oil / water separation tank 200 float and eventually form an oil layer L1 in the oil / water separation tank 200. The oil layer L1 is extracted to the outside through an oil inflow unit 220 (see FIG. 6) and a path forming unit 222 (see FIG. 6) to 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 and water separation treatment tank 200 may be the inlet 302 of the sterilization treatment tank 300, the inlet 302 is the sterilization treatment tank 300 in the form of a tube. It may extend to the bottom of the redox filter unit 310 toward the bottom surface.

Redox constituting the redox filter unit 310 is used in the redox reaction process by controlling the size and speed of the redox reaction through a suitable combination of a plurality of dissimilar metals without using any energy or chemicals It is a material that enables eco-friendly treatment of wastewater without inducing secondary pollution by using natural electrochemical reaction.

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

In addition, the redox filter unit 310 forms a salt by reacting with dissolved heavy metals in the waste water to precipitate the heavy metals, and decomposes and removes organic substances of the residual pesticides in the process of redox, and removes residual chlorine in the water. Removed through the reaction, and also effective in improving the degree of emulsification and turbidity.

In addition, the lactic acid reduction bacteria contained in the waste water while passing through the redox filter unit 310 can be sterilized, the treated water sterilized by the lactic acid reduction bacteria to be introduced into the micro foreign matter treatment tank 400 through the outlet 304. Can be.

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

That is, in the above case, the inlet 302 may not be in the form of a tube, and even in the form of a tube is disposed in an upright state without extending downward toward the bottom surface of the sterilization treatment tank (300). The 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 micro foreign matter treatment tank 400, the inlet 402 of the micro foreign matter treatment tank 400 in the form of a tube. It may extend to the bottom of the micro foreign matter treatment filter unit 410 toward the bottom surface.

The fine foreign matter treatment filter unit 410 may be a kind of nonwoven fabric aggregate, and the fine foreign matter contained in the waste water may be treated while the waste water passes through the fine foreign matter treatment filter unit 410, and the treated water having the fine foreign matter treated therein may be discharged. 404 may be discharged to the outside.

As described above, the wastewater treatment apparatus 10 according to an embodiment of the present invention allows the solids to be treated for the wastewater, the oil is separated, and the microorganisms are treated at the same time as the lactate reducing bacteria are sterilized. It can effectively solve all the problems described in the section.

On the other hand, the wastewater treatment apparatus 10 according to an embodiment of the present invention uses a separate energy by providing a height difference between the inlets (102, 202, 302, 402) and the outlets (104, 204, 304, 404) of each treatment tank Naturally, it can flow to the treatment tank for the next process to enable more efficient wastewater treatment, and the number of inlets (102, 202, 302, 402) and outlets (104, 204, 304, 404) of each treatment tank is varied. Can be changed.

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

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

Here, a brief description will be made of a conventional wastewater treatment apparatus in which the flow rate reduction unit 120 provided in the wastewater treatment apparatus 10 according to the present invention is removed, and a large amount of wastewater is suddenly introduced through an inlet of the solids treatment tank. If the flow rate is higher, the discharge rate and discharge flow rate of the wastewater flowing into the next stage treatment tank, the oil water separation treatment tank, are increased.

This shortens the residence time required for the waste water to pass through the solids separation filter unit, and deteriorates the adsorption, growth and separation performance of the oil particles by the solids separation filter unit.

In other words, the solids separation filter part is implemented with a material containing ultra-high molecular weight polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) having the oil particle adsorption characteristics as described above, thereby improving the separation performance of oil particles through the adsorption and growth of oil particles To this end, some amount of residence time is required for the waste water to pass through the solids separation filter.

However, if 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 and water treatment tank is increased, and separation of the oil particles through the adsorption and growth of the oil particles due to the reduction of the residence time. The performance is degraded.

For the reason as described above, the present invention can solve the problem that the residence time is shortened through the flow rate reduction unit 120 disposed on the inlet 102 side of the space (S1) in the solid treatment tank (100).

The flow rate reduction unit 120 is fixed to the inlet port 102 side through the fixing means 101, such as a rod shape is fixed to the inner wall constituting the solids treatment tank 100, the inlet of the solids treatment tank 100 After hitting the wastewater introduced through 102, the traveling direction may be changed within an acute angle range, and one surface of the wastewater introduced through the inlet 102 may have a curvature.

In addition, the flow rate reduction unit 120 may hit the waste water introduced through the inlet 102, and then to spread radially toward the outlet 104, for this purpose, the inlet of the solids treatment tank 100 One surface hitting the wastewater introduced through the 102 may be formed to correspond to at least a portion of the outer surface of the sphere, and specifically, may be formed in a hollow hemispherical shape.

However, the flow rate reduction unit 120 does not necessarily need to be formed in a hemispherical shape, and after the wastewater introduced through the inlet 102 strikes, a cone that may radially spread toward the outlet 104, It turns out that it can be transformed into various shapes such as truncated cone, triangular pyramid, triangular pyramid, square pyramid, and square pyramid.

As described above, in the wastewater treatment apparatus 10 according to the present invention, the inflow amount of wastewater is suddenly increased by the flow rate reduction unit 120 disposed on the inlet 102 side of the space S1 in the solids treatment tank 100. In this case, the flow rate is controlled to have a remarkable effect of preventing deterioration of the purification function.

3 is a view for explaining the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment of the present invention, a schematic enlarged view of the portion B of Figure 1, Figures 4 and 5 is an embodiment of the present invention It is a schematic perspective view for demonstrating the oil adsorption filter part of the solid matter separation filter part provided in the wastewater treatment apparatus by an example.

3 to 5, the solids separation filter unit 110 for the solids treatment process in the solids treatment tank 100 may have an outlet 104 of the solids treatment tank 100 as described with reference to FIG. 1. It may include an oil adsorption filter unit 114 is formed of a material including a solid material separation filter frame 112 and ultra-high molecular polyethylene (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE) installed on the side.

Here, the solid separation filter frame 112 has a predetermined internal space (SS1) and the waste water introduced through the inlet 102 has a passage hole (H1) for passing through the internal space (SS1). In addition, the wastewater introduced through the inlet 102 may be a kind of perforated plate assembly allowing a process of removing the solids present in the wastewater in the course of passing through the passage hole H1.

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

The ultra high molecular polyethylene has a specific gravity of 0.85 to 0.95 and a molecular weight of 6 million to 11 million, high abrasion resistance, impact resistance and self-lubrication, strong chemical resistance and weather resistance, non-toxic, non-absorbent, electrical insulation and high frequency There is a characteristic.

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

The solid separation filter frame 112 is open to the upper side for insertion of the oil adsorption filter unit 114 into the internal space (SS1), the lower side is closed, fixed to one surface of the solid treatment tank (100) Can be.

When the wastewater passes through the through hole (SS1) of the solid separation filter frame 112, the solids larger than the size of the through hole (SS1) is not filtered through, the solids are the solids treatment tank ( Stacked on the bottom surface of 100) can be removed later by artificial work and the like.

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 drawn out at a time from the internal space (SS1) provided by the solid material separation filter frame 112 In order to be detachable, the inner space may be detachably disposed.

Conventionally, the ultra-high molecular polyethylene filter functioning as the oil adsorption filter part is manufactured in a very small unit, and then poured into the filter cylinder functioning as the solid separation filter frame, thereby implementing the solid separation filter part. In this case, The operator had to enter the filter cylinder and use a tool such as a shovel to manually spread the ultrahigh molecular polyethylene filter, resulting in a very low efficiency.

However, in the present invention, since the oil adsorption filter unit 114 is implemented in a single module form, the oil adsorption filter unit 114 is separated into the solid matter separation filter frame 112 by using a large lifting device such as a crane if cleaning is required. Since only need to lift from the), it can effectively solve the problems of the prior art.

On the other hand, the oil adsorption filter unit 114 is an oil adsorption filter unit which is manufactured by winding the ultra-high molecular polyethylene material in the form of a yarn, as shown in Figure 4 and 5, and then wound in a frame 1118 of a predetermined shape ( 1114 may be connected to each other to be implemented in the module form.

Here, the meaning that the ultra-high molecular polyethylene material is manufactured in the form of a thread may include not only the shape of a single strand of thread, but also a form of a thread in which several strands of threads are twisted with 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 closely contacted with each other between the first annular frame 1115 and the second annular frame 1116, and the closely contacted portion may be in point contact as shown in FIG. It may be in close contact with the form of, or as shown in Figure 4 (b) may be in close contact in the form of line contact.

The connection frame 1117 may be wound ultra-high molecular polyethylene produced in the form of a thread, the oil adsorption filter unit 1114, which is completed after the winding is completed in a substantially cylindrical shape, the oil adsorption filter unit ( When the 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 connecting frame 1117 is not limited to the above-described cylindrical shape, and an appropriate winding amount by an experimental value. The shape may be an hourglass shape similar to the shape of the original connecting frame 1117 or a convex shape of the center part.

On the other hand, the number of the oil adsorption filter unit 1114 for completing the oil adsorption filter unit 114 is not particularly limited, considering the size of the internal space (SS1) of the solid material separation filter frame 112 and the like. It can be adjusted appropriately.

As the ultra-high molecular polyethylene produced in the form of a yarn is wound on the 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 the waste water. It can improve the separation performance of oil particles through adsorption and growth.

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

The plurality of members can increase the residence time by allowing the waste water passing through the oil adsorption filter unit 1114 to be discharged to the ultra-high molecular polyethylene side produced in the form of a yarn.

As described above, the wastewater treatment apparatus 10 according to the present invention is implemented by detachably attaching the oil adsorption filter unit 114 to the solids separation filter frame 112, which is a remarkable effect that can be very easy to wash compared to the prior art. There is.

FIG. 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, and is a schematic enlarged view of portion 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 entering the treated water from which the solid treatment process is completed from the solid treatment tank (100). 200 may be included.

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

That is, the oil particles are adsorbed, grown, and separated during the residence of the waste water passing through the oil separation filter unit 210 having the same effect as that of the oil adsorption filter unit 114 described with reference to FIGS. 3 to 5. Will eventually rise 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 220 and the path forming unit 222 to facilitate the management, such as disposal of the extracted oil and at the same time It may be possible to reuse according to, and will be described in detail below.

The oil inlet 220 is located in the oil layer (L1) formed by the rise of oil particles in the space (S2) of the oil and water separation treatment 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 unit 222 is connected to communicate with the oil inlet 220 is a path for discharging the oil introduced through the oil inlet 220 to the external storage space (not shown) It may be a kind of flexible tube to provide.

The path forming unit 222 may have a different path depending on the oil inflow unit 220 whose position is determined based on the height at which the oil layer L1 is formed, which may be due to a flexible property. .

On the other hand, the oil inlet 220 may be equipped with a first wing 224 and a second wing 226, the first wing 224 is the space of the oil-water separation treatment tank 200 (S2) is rotated by the flow for the discharge of the impingement of the oil particles in the flotation or the oil-water separation process is discharged through the outlet 204 to induce a flow in the rotational direction around the oil inlet 220 It can be a kind of impeller.

The first wing 224 is naturally rotated by the floating oil particles or the treated water undergoing the oil-water separation process, and thus flows in the rotational direction of the oil layer around the cup-shaped oil inlet 220. Can be induced.

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

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

The oil inlet part 220 may also be rotated by the first wing part 224 and the second wing part 226 which are rotated by the floating oil particles or the treated water in which the oil / water separation process is performed. The inlet part 220 is connected to the path forming part 222 to enable free rotation with respect to the path forming part 222.

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

Since the first wing 224 and the second wing 226 is 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 220 by the rotation of the first wing 224 and the second wing 226. Since it is introduced into the external storage space through the forming unit 222, there is a remarkable effect than the conventional in terms of management, such as the ease of extraction of oil and 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 modified schematic enlarged view of the portion A of Figure 1, Figure 8 is a view of the present invention 7 is a schematic plan view from above of a modification of the solids separation filter unit provided in the wastewater treatment apparatus according to an embodiment, and is a schematic cross-sectional view taken along line AA of FIG. 7.

In addition, Figure 9 is a schematic cross-sectional view for explaining the principle of spraying the washing water, etc. to the seal unit assembly in a modification of the solids 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 on the outlet 104 side of the solids treatment tank 100 includes the solids separation filter frame 112 and the oil described with reference to FIGS. 3 to 5. 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 plurality of ultra high molecular polyethylene materials in the form of a yarn. And a combination disposed in the horizontal direction, the vertical direction and / or the inclined direction, or the like.

Here, the meaning that the ultra-high molecular polyethylene material is manufactured in the form of a thread may include not only the shape of a single strand of thread, but also a form of a thread in which several strands of threads are twisted with each other.

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

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

In other words, the first support part 134 may be a hollow tube or a polygonal tube in which the hollow is formed.

The second support part 136 may be a kind of seated frame supporting the seal unit assembly 132 and allowing the seal unit assembly 132 to be disposed from the bottom of the solid 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 of a thread form, and / or an ultra high molecular polyethylene material manufactured in the form of a thread. have.

Here, some of the yarn 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 portions 138, and constitute the seal unit assembly 132. Some other strands made of ultra high molecular polyethylene material may be connected to the first support part 134 and the second support part 136 to have a final lattice shape.

However, the pattern formed by the thread strand made of the ultra high molecular polyethylene material constituting the seal unit assembly 132 is not limited to the lattice shape, and various patterns may be formed due to the arrangement change of the thread strand. .

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

In addition, the plurality of yarn strands made of the ultra high molecular polyethylene material constituting the seal unit assembly 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 portion 134 is an internal space (SS2) for supplying at least one of the washing water for washing and the 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.

When the injection hole (H2) is to wash the seal unit combination 132 made of ultra-high molecular polyethylene material for adsorbing, growing and separating oil particles contained in the waste water, at least one of washing water and compressed air for washing One may be a component for spraying towards the seal unit combination 132.

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

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

In order to spray the washing water and / or compressed air for washing to the seal unit assembly 132 through the injection hole and the injection hole H2, the oil adsorption filter unit 130 is separated into the solid material separation filter frame. It may proceed after withdrawing from the internal space (SS2) of 112, the oil adsorption filter unit 130 may proceed to the 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) with 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 on the seal unit assembly 132, it will be preferable to proceed after blocking the inflow of wastewater to 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 positioned based on the height of the wastewater in the internal space SS1 of the solid separation filter frame 112. Floating portion 139 to be changed may be further included.

The floating part 139 is a kind of buoyancy body that raises the first support part 134 when the height of the wastewater in the internal space SS1 is increased, so that the seal unit combination 132 is unfolded, and the internal space SS1. When the height of the wastewater in the lower ()) is lowered, the first support portion 134 can be lowered so that the seal unit assembly 132 is folded.

This is due to the flexible nature of the third support 138.

When the height of the wastewater in the internal space SS1 is lowered due to the state change of the seal unit assembly 132 by the floating part 139, the seal unit assembly 132 is folded and the oil particles are adsorbed. The area of the ultra-high molecular polyethylene material that is in contact with the wastewater during the residence time for the back becomes larger by that, the separation performance of the oil particles through the adsorption and growth of the oil particles is improved.

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

Due to the floating part 139, the seal unit assembly 132 may maintain a stable arrangement.

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

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

FIG. 10 is a schematic perspective view illustrating a principle in which an oil adsorption filter unit is mounted on a solid matter separation filter frame provided in the solid matter separation filter unit illustrated in FIG. 7.

Referring to FIG. 10, the oil adsorption filter unit 140 may be configured in which the floating part 139 is removed as 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 may maintain a constant state regardless of the height of the wastewater in the internal space SS1 of the solid separation filter frame 112, that is, the seal unit assembly 142. Regardless of the height of the wastewater in the internal space (SS1) of the solid separation filter frame 112 can be maintained a constant state.

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

The principle of fixing the first support 144 to the solid separation filter frame 112 may vary. For example, as illustrated in FIG. 10, the protrusion 144a may be provided on the first support 144. Forming and forming a groove 144b in the solid separation filter frame 112, it is possible to use the principle that the projection 144a is seated in the groove 144b.

Here, the shape of the protrusion 144a and the groove 144b may be variously changed.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

Meanwhile, the wastewater treatment apparatus 10 according to the present invention may be linked to an automatic water quality analyzer for analyzing water quality, and analyzes the water quality of the wastewater in each treatment tank 100, 200, 300, or 400 through the automatic water quality analyzer. Or it can analyze the water quality of the wastewater flowing into the solids treatment tank (100). In addition, the quality of the final treated water discharged from the micro foreign matter treatment tank 400 can 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, while ensuring the water quality data of the wastewater and remotely monitoring the water quality for environmental pollution and Industrial accidents can be prevented.

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

Claims (6)

In the wastewater treatment apparatus for purifying wastewater through a purification process,
An oil / water separation treatment tank providing a space for storing the wastewater introduced through an inlet, and allowing the treated water having undergone the oil / water separation process for the wastewater to be discharged through an outlet;
Before the wastewater introduced into the space is discharged through the outlet, the oil-water separation process is implemented, the material is implemented in a material containing ultra high molecular weight (ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE), the oil disposed in the lower portion of the space Separation filter unit-The oil-water separation process is a process in which oil particles are adsorbed and grown by retention while the wastewater passes through the oil separation filter unit, and is floated due to specific gravity difference;
An oil inlet unit positioned in an oil layer formed by the rise of the oil particles in the space, such that oil constituting the oil layer is introduced; And
And a path forming part connected to communicate with the oil inflow part to provide a path for discharging the oil introduced through the oil inflow part to an external storage space.
The path forming unit,
And said path varies according to said oil inflow portion whose position is determined based on the height at which said oil layer is formed in said space.
The method of claim 1,
The oil inflow so as to induce a flow in the rotational direction around the oil inflow portion by rotating the flow of the treated water of the impingement of the oil particles or floating in the water separation process is discharged through the discharge port in the space Wastewater treatment apparatus further comprises; a first wing portion mounted to the portion.
The method of claim 2,
When the flow in the rotational direction is induced around the oil inlet by the rotation of the first wing, the oil constituting the oil layer is smoothly directed to the oil inlet by directing the flow toward the oil inlet by rotation. Waste water treatment apparatus further comprises; a second wing portion mounted to the oil inlet portion to be introduced.
The method of claim 2,
The first wing portion,
A wastewater treatment apparatus, characterized in that located on the boundary between the oil layer and layers other than the oil layer.
The method of claim 2,
The first wing portion,
Waste water treatment apparatus characterized in that the specific gravity is larger than the oil layer but smaller than the layer other than the oil layer.
The method of claim 1,
The oil inlet portion,
Wastewater treatment apparatus characterized in that connected to the path forming portion to enable free rotation based on the path forming portion.

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