KR101335234B1 - Polluted river-water purification system using directaeration - Google Patents

Abstract

The present invention relates to a contact-oxidation type purification system for purifying the polluted water by being installed in a river or lake side, in particular, to a system which prevents a reduction of microorganism contact area by installing multiple air diffusers in a contact-oxidation tank where string type microorganism contact materials are installed at regular intervals, and directly aerating the string type microorganism contact materials through the air diffusers, then isolating the sludge and floating substances which are attached on the microorganism contact materials. The system improves the quality of the discharging water, and the efficiency of the contact-oxidation tank by removing the sludge and floating materials floated by the direct aeration through an inclined plate apparatus of a precipitation tank installed in the rear end of the contact-oxidation tank. [Reference numerals] (10) Screen;(20) Detritus tank;(30) First precipitation tank;(40) Contact-oxidation tank;(50) Second precipitation tank

Description

Polluted river-water purification system using directaeration

      The present invention relates to a catalytic oxidation type purification apparatus for purifying polluted river water by installing in rivers or lakesides, and more particularly, by installing a plurality of diffuser devices in contact oxidation tanks in which string-like microbial contact materials are installed at regular intervals. By directly aeration of the string-like microbial contact material, the sludge and suspended solids attached to the microbial contact material are smoothly removed to prevent the microbial contact area from decreasing. The present invention relates to a direct aeration type pollutant purification apparatus characterized by improving the efficiency of the contact oxidation tank and improving the water quality of the effluent by removing the slant plate of the settling tank.

In general, rivers are self-cleaning. Self-cleaning is performed by the decomposition of pollutants by microorganisms, adsorption and sedimentation of particulate pollutants by the flow of river water. However, in order for the self-cleaning function to function, a considerable flow distance is required, so there is a limit to purifying the river water contaminated by the self-cleaning action alone.

The present invention relates to a technique for purifying contaminated river water using a catalytic oxidation tank. In other words, by increasing the artificial purification capacity of the polluted river water by several times. Currently, the catalytic oxidation method applied to rivers is a method for artificially increasing the purification capacity of rivers by a natural flow method using the difference in water head between the inflow water level and the outflow water level.

In general, contact oxidation tanks use contact media such as strong gravel, crushed gravel and string microbial contact materials. When the contact media is filled in the contact oxidation tank to contact the contaminated river water between the pores formed in the contact media layer, the contaminants in the water are adsorbed by the electrical properties and viscosity of the contact media. Soluble material that is not precipitated or adsorbed is removed by decomposing microorganisms attached to the surface of contact medium in aerobic state.

Purification device of polluted rivers and lakes according to the prior art (hereinafter referred to as 'polluted river purification device') is introduced into the contact oxidation tank filled with a number of string-like microbial contact material through the sedimentation site and included in the river and lake waters. Suspended and organic matter is adsorbed and decomposed by a high concentration of microorganisms to purify. In addition, the conventional contaminant stream purification apparatus prevents microorganisms from detaching from the string-like microbial contact material by installing a draft tube of a predetermined diameter vertically between the string-like microbial contact material and indirectly aeration through an air diffuser installed at the bottom thereof. .

Therefore, in the conventional polluted river purification apparatus, the contact oxidation tank is formed in an aerobic state so that organic pollutants are decomposed by microorganisms that adhere to the string-like microbial contact material. However, the conventional polluted river purification device has a high concentration of suspended substances and organic substances in the inflowing river water, and over time, microorganisms and suspended solids are excessively attached to the surface of the string-like microbial contact material, thereby reducing the contact area of the effective microorganisms. There was a problem that the treatment efficiency of the oxidation treatment tank is lowered.

In addition, the stream pollution purifier according to the prior art is a method of indirect aeration by using an air diffuser formed on the bottom of the cylindrical draft tube, that is, the water flow generated by the air bubbles released from the air diffuser does not directly reach the string-like microbial contact material Therefore, the current shearing force was very weak, so that the suspended solids and sludge attached to the string-like microbial contact material could not be detached. Therefore, the conventional microbial contact material is deformed into a round bar shape as time passes, so that the effective microorganism holding amount decreases, and the treatment efficiency and processing capacity are greatly reduced. In order to prevent this, the management of the microbial contact material must be frequently replaced. There was a problem that became difficult.

In addition, the pollutant stream purifying apparatus according to the prior art sets up a sludge port at the bottom of the contact oxidizing tank to sediment and concentrate the desorbed suspended solids and sludge, or the water flow is continuously circulated by the air supplied through the draft tube. As a result, the fine suspended solids and the fine sludge did not settle out as the discharged water and there was a problem that the quality of the discharged water falls.

In addition, the conventional microbial contact material unit installed in the contact oxidation tank has a problem that the microbial contact material unit rises to the top by the air bubbles generated in the air diffuser when aerated directly. As such, when the microbial contact material unit floats upward, the string-like microbial contact materials are twisted or contacted with each other, thereby reducing the effective contact microorganisms and preventing the flow of water. In order to prevent this, in the past, a weight body was separately installed at the bottom of the string-like microbial contact material, but the weight of the microbial contact material unit increased by such a weight, and there was a problem in that stability was reduced and work was difficult.

In addition, in the conventional inclined plate installed in the settling tank, the sludge is accumulated on the inclined plate often causes a problem that the waterway is blocked. As such, clogging of foreign matter in the inclined plate, there was a difficulty in reducing the sedimentation performance and maintenance. In addition, when the sludge is not easily settled from the inclined plate and accumulated, the flow path between the inclined plates is blocked or the inclined plate is deformed by the weight of the sludge.

Accordingly, the conventional inclined plate apparatus needs to periodically perform a cleaning operation to remove the paired sludge on the inclined plate. Most of the conventional inclined plate apparatus are formed in such a manner that the inclined plate and the inclined plate frame are fixed to the entire settling tank, so that the inclined plate can be efficiently cleaned. There was a problem that was very difficult to manage. In particular, since the operation of the settling tank must be temporarily stopped during the cleaning operation, there is a problem that the solid-liquid separation efficiency of the settling tank is lowered.

[Prior Art Literature]

[Patent Literature]

1. Utility Model Registration No. 20-0257303 (Registration date: December 1, 2001) Purification device for polluted rivers and appeals

2. Registered Utility Model No. 20-0336701 (Registration date: Dec. 10, 2003) Direct aeration type pollutant purification system

3. Patent No. 10-0662483 (Registration date: December 21, 2006) Appeal and river purification device using the plate contact module

The present invention has been made to solve the problems of the prior art, the main object of the present invention is to install a number of acid devices in the contact oxidation tank filled with a plurality of string-like microbial contact material and generate a strong water flow to the string-like microbial contact material By removing the attached suspended solids and microbial sludge smoothly to prevent deformation into round bar shape, it prevents the effective microbial contact area from being reduced and improves the treatment efficiency. To provide.

In addition, the present invention is provided with a tension control unit that can be installed in the upper part of the contact oxidation tank by uniting the string-type microbial contact material, the microbial contact material unit is light and easy to work, and also adjust the tension of the string-like microbial contact material. It is to provide a direct aeration-type polluted river purification apparatus characterized in that the waterway is not blocked by the string-like microbial contact material is not twisted or contacted.

In addition, the present invention is to provide a direct aeration polluted river purification apparatus that can prevent the microbial contact member unit to rise to the top.

In addition, the present invention is to provide a direct aeration-type polluted river purification apparatus that can remove the deposits accumulated on the inclined plate from time to time without stopping the operation of the settling tank.

As a means for achieving the object of the present invention, the direct aeration polluted river purification apparatus according to the present invention,

In the polluted river purification device installed in the river or lakeside to remove the suspended substances and organic substances contained in the contaminated river water using microorganisms,

A screen installed at an inlet through which contaminated river water is introduced to remove contaminants;

A sedimentation tank installed at the rear end of the screen for sedimenting and separating sand or mud contained in contaminated river water;

A first inclined plate including an inclined plate frame having an upper frame and a lower frame therein and a plurality of inclined plates provided at predetermined intervals in the inclined plate frame to settle and remove suspended solids contained in the contaminated river water passing through the settling tank A first settling tank in which the apparatus is installed;

The contaminated stream water that has passed through the first settling tank is formed in an aerobic state so that a string-like microbial contact material is installed at regular intervals in order to decompose and remove organic substances contained in the contaminated river water, and a plurality of diffuser devices are installed at the lower part. A contact oxidation tank for directly aeration of the string-like microbial contact material;

An inclined plate frame having an upper frame and a lower frame therein so as to settle and separate sludge contained in the treated water discharged from the contact oxidizing tank, a plurality of inclined plates installed at predetermined intervals inside the inclined plate frame, and the inclined plate And a second precipitation tank having a second inclined plate device installed on the frame and including a plurality of vibration generators generating vibrations.

In the present invention, the lower part of the first precipitation tank and the second precipitation tank is further provided with a plurality of acidifiers to remove the precipitates deposited on the upper surface of the inclined plate by using the fine bubbles generated in the acidifiers. .

The contact oxidation tank is characterized in that for installing a plurality of microbial contact material unit comprising a plurality of string-like microbial contact material.

The microbial contact unit is characterized in that it is installed through the opening of the unit support horizontally installed on the upper portion of the contact oxidation tank.

The microbial contact material unit,

An upper support frame provided with an upper support in the form of a grid;

A lower support frame provided with a lower support grid;

A cord-shaped microbial contact member disposed between the upper support frame and the lower support frame;

An upper support frame installed to protrude outwardly of the upper support frame to be mounted on the unit support;

And a tension controller installed between the upper support frame and the lower support frame to adjust the tension of the string-like microbial contact material.

In addition, the upper support frame and the lower support frame is provided with a plurality of fixing hooks, the fixing hook is a hook portion which is connected to the fixing portion welded to the upper support frame and the lower support frame and the string-type microbial contact material, and the hook The tip of the part is installed to be inclined downward and includes a locking part for fixing the string-like microbial contact material.

The lower end of the tension controller is characterized in that a plurality of through holes are formed at a predetermined interval.

The vibration generator of the second inclined plate device,

A vibration generating piece installed to protrude a predetermined height to an upper portion of the upper frame;

It comprises a; vibration transmission plate for transmitting the vibration by fixing the vibration generating piece to the upper frame.

In addition, the vibration generator,

A bubble collecting container having an internal space having a predetermined size and an open bottom;

A bubble outlet formed at an upper end of the bubble container;

It comprises a; a vibration transmitting plate for transmitting the vibration by fixing the bubble collection container to the upper frame.

In the present invention, the upper portion of the inclined plate frame is characterized in that it is provided with a scraper for moving in the horizontal direction in contact with the vibration generating piece to generate vibration.

The bubble collecting container is characterized in that the vibration is generated by the bubbles generated in the third diffuser installed in the lower portion of the inclined plate frame.

The bubble collecting container has a shape in which the diameter thereof is widened toward the lower portion so as to easily collect bubbles from the lower portion.

According to the direct aeration polluted stream purifying apparatus of the present invention, by generating a strong water flow by directly aeration of a contact oxidation tank filled with a plurality of string-type microbial contact material with a plurality of acidic device to generate a floating water and microbial sludge adhered to the string-type microbial contact material By smoothly desorption to prevent deformation into a round bar shape to prevent the effective microbial contact area is reduced to improve the treatment efficiency.

In addition, the present invention is installed in the upper part of the contact oxidation tank by uniting the string-type microbial contact material, the microbial contact material unit is lightweight and easy to work and is provided with a tension control rod that can adjust the tension of the string-like microbial contact material It is possible to prevent the contact material from being twisted or contacted with each other to prevent the channel from being blocked, thereby reducing the oxidation efficiency.

In addition, the present invention can be provided with a fixing device in the unit support to prevent the microbial contact unit from rising to the top.

In addition, the present invention can efficiently remove deposits accumulated on the inclined plate without stopping the operation of the settling tank, and in particular, it is possible to clean the deposits accumulated on the inclined plate without stopping the operation of the settling tank.

In addition, the present invention is stable to prevent the blockage due to the accumulation of sediment, damage by the weight of the sediment, and / or damage by water pressure during cleaning, and can be cleaned regularly without straining the sedimentation equipment. It works.

1 is a schematic configuration diagram of a direct aeration pollutant stream purification apparatus according to the present invention,
Figure 2 is a schematic diagram showing a preferred embodiment of the direct aeration polluted stream purification apparatus according to the present invention,
3 is a perspective view showing an example of a microbial contact member unit according to the present invention;
4 is an explanatory view showing a method of connecting a string-like microbial contact material according to the present invention,
5 is an exploded perspective view showing a configuration of a contact oxidation tank according to the present invention;
6 is an exploded perspective view showing a fixing device for fixing a microbial contact member unit according to the present invention;
7 is a cross-sectional view of the fixing device shown in FIG.
8 is a perspective view showing an embodiment of a second inclined plate apparatus according to the present invention;
9 is a perspective view showing a vibration generator shown in FIG.
10 is a perspective view showing another embodiment of a second inclined plate apparatus according to the present invention;
11 is a perspective view showing the vibration generator shown in FIG.
12 is an explanatory view showing the operation of the vibration generator according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the direct aeration polluted river purification apparatus according to the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

And the terms used below are terms set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer, the definition should be made based on the contents throughout the present specification.

First, Figures 1 and 2 is a block diagram showing an individual direct aeration polluted river purification apparatus according to the present invention. As shown, the direct aeration pollutant stream purification apparatus 1 of the present invention, the screen 10, the sedimentation tank 20, the first precipitation tank 30, the contact oxidation tank 40 and the second precipitation tank 50 ) These can be made by installing a plurality of partitions (39, 59) in one concrete structure or may be made of a separate reactor.

Referring to FIG. 2, a first inclined plate device 60 and a first diffuser 5a are installed in the first precipitation tank 30. And the contact oxidation tank 40 is provided with a string-like microbial contact material 3 and the antacid device 5b. In addition, a second inclined plate device 70 and a third diffuser device 5c are installed in the second precipitation tank 50.

Referring back to Figures 1 and 2, the contaminated water of the stream or lake is introduced into the direct aeration polluted stream purification apparatus 1 installed in the river or lakeside. The screen 10 installed at the inlet of the contaminated river water removes contaminants contained in the river water. Screen 10 is a device for filtering large contaminants contained in the contaminated river water, in consideration of the degree and size of inflow of the contaminants can be used by mixing the bar screen and the sieve screen of a certain grid. At the rear end of the screen 10, the immersion tank 20 is installed. The sedimentation tank 20 has a specific gravity such as stone or sand, and precipitates and removes the material that sinks in water.

The first settling tank 30 precipitates and removes the suspended solids (SS) contained in the contaminated river water. To this end, the first inclined plate device 60 is installed in the first settling tank 30. The first inclined plate device 60 includes an inclined plate frame 63 formed of an upper frame 61 and a lower frame 62 having a frame shape, and a plurality of inclined plates 65 installed inside the inclined plate frame 63. Is done.

Therefore, when the contaminated river water flows into the first settling tank 30, the suspended matter is suspended on the inclined plate 65 while the contaminated river water including the suspended material flows upward along the channel between the inclined plates 65. And the sediment precipitated on the inclined plate 65 flows down along the inclined plate to be accumulated in the bottom of the first settling tank (30). And deposits accumulated in the first sedimentation tank 30 is periodically dredged or removed or discharged to the outside through a separate sediment discharge device.

When the deposit accumulated on the inclined plate 65 blocks the water channel, the first diffuser 5a may be periodically operated to remove the precipitate accumulated on the inclined plate 65. That is, when suspended matter accumulates on the inclined plate 65, the channel is closed and the precipitation efficiency is lowered. At this time, when the air is generated by operating the first air dispersing device 5a, the bubbles rise along the water channel to remove the deposits accumulated on the inclined plate 65.

As such, the first settling tank 30 removes the suspended solids contained in the polluted river water in a large amount to block the inflow into the contact oxidation tank 40. In other words, the suspended solids introduced into the contact oxidation tank 40 clings to the microorganisms that adhere to the string-like microbial contact material 3, thereby preventing the growth of the microorganisms, thereby reducing the treatment efficiency.

Subsequently, the contaminated river water from which the suspended matter is removed from the first precipitation tank 30 is introduced into the contact oxidation tank 40. The contact oxidation tank 40 decomposes and removes the organic substances contained in the contaminated river water using aerobic microorganisms. To this end, the contact oxidation tank 40 is provided with a string-like microbial contact material (3).

Usually, the cord-like microbial contact material 3 (or cord-like microbial contact material) is a rope-shaped media made of nylon material, and a plurality of synthetic fiber multifilament rings planted to protrude outward from the core wire and the surface of the core wire made of synthetic fiber filaments. It consists of Synthetic fiber multifilament rings are arranged vertically with respect to the longitudinal direction of the core fibers, and thus have a nearly cotton-like volume effect. Therefore, the string-like microbial contact material 3 is easy to install because it is excellent and flexible microbial contact effect. The string-like microbial contact material 3 should be installed at regular intervals in order to prevent the blockage phenomenon and the resulting decay phenomenon.

The string-like microbial contact material 3 is installed using the microbial contact material unit 80. The microbial contact member unit 80 is to facilitate the installation of the string-like microbial contact member 3, as shown in Figure 3, the upper support frame 81 and the lower support frame 82, and the upper support frame 81 ) And a string-like microbial contact material (3) installed between the lower support frame (82). And the outer side of the upper support frame 81, the upper support frame 83 and the upper support frame 81 and the lower support frame so that the microorganism contact unit 80 can be caught on the unit support 45 ( The string microbial contact material 3 installed between the 82 is made of a tension control unit 85 to maintain a constant tension.

The upper support frame 181 is installed inside the upper support frame 81 in a lattice form, and the lower support frame 182 is provided in a lattice form in the lower support frame 82. The upper hanger 181 and the lower hanger 182 is of the same size and shape. And the upper support frame 83 is formed on the outer side of the upper support frame 81 is made of a structure capable of fixing the microbial contact member unit 80 over the step 47 of the unit support 45 to be described later. .

And, as shown in Figure 4, the upper hook 181 and the lower hook 182, the fixing hook 190 is installed at a predetermined interval. The fixing hook 190 is composed of a fixing part 191 and the hook portion 192. The fixing part 191 is welded to the side of the upper hanger 181 and the lower hanger 182, the hook portion 192 serves as a hook for hanging the string-like microbial contact material (3). At the front end of the hook portion 192, a locking portion 193 is formed to be inclined downward. Therefore, it is possible to easily install the string-like microbial contact material 3 in the hook portion 192 and at the same time bend the hook portion 193 toward the string-like microbial contact material 3 can prevent the string-like microbial contact material (3) fall out. .

Hereinafter, the process of connecting the string-like microbial contact member 3 to the microbial contact member unit 80 will be described briefly.

First, the upper support frame 81 in a state in which a plurality of fixing hook 190 is fixed to the upper and lower ends of the upper support frame 81 and the lower support frame 82 welded at regular intervals, respectively, on the tension adjuster 85. ) And the string-like microbial contact member 3 between the lower support frame 82 in the form of 'ㄹ'. After the string-like microbial contact material 3 is fastened, the locking part 193 is pressed using a tool to fix the string-like microbial contact material 3 so as not to fall out.

Then, the string-like microbial contact material 3 is stretched or contracted while the string-like microbial contact material 3 is fastened to the upper support frame 81 and the lower support frame 82 so that the tension is not matched. At this time, the tension of the string-type microbial contact material 3 can be adjusted by moving the lower support frame 82 fixed to the tension adjuster 85 upward and downward to fix it again. That is, a plurality of tension adjusting through-holes 185 are formed at the lower end of the tension adjusting unit 85 so that the upper and lower positions of the lower support frame 82 can be changed. Meanwhile, in the present specification, the method of fixing the string-like microbial contact material 3 using the fixing hook 190 has been described, but the string-like microbial contact material 3 is directly attached to the upper hook 181 and the lower hook 182. It is also possible to install on foot.

And, Figure 5 shows an example of the contact oxidation tank 40 according to the present invention. As shown in the drawing, the upper portion of the contact oxidation tank 40 is provided with a unit support 45 for supporting the microbial contact material unit 80, the rectangular opening 46 for installing the micro-contact material unit 80. ) Is formed.

The unit support 45 is provided with a step 47 for supporting the upper support frame 83 of the microbial contact material unit 80. As shown in FIG. 6, the unit support 45 is provided with two L-shaped angles facing each other in the longitudinal direction to form stepped portions 47 supporting the upper support frame 83 on both sides.

In addition, the unit support 45 is provided with a fixing device 140 for fixing the microbial contact unit 80. As shown in FIGS. 6 and 7, the fixing device 140 includes a fixing bolt 141 installed vertically in the center of the unit support 45 and a fixing plate 142 installed along the length direction on the unit support 45. ) The fixing plate 142 is a metal plate having a U-shaped cross section, and wings 143 for pressing the upper support frame 81 are formed on both left and right sides thereof. In the center of the fixing plate 143, a fastening hole 144 through which the fixing bolt 141 passes is formed. The fastening nut 145 is fastened to the fixing bolt 141 that passes through the fastening hole 144.

Therefore, the microbial contact member unit 80 is installed on the stepped portion 47 of the unit support 45 so that the upper support frame 83 spans, and then the fixing plate 142 is inserted into the fixing bolt 141 and the fastening nut 145 is installed. ), The blades 143a and 143b of the fixing plate 142 fixed to the fixing bolt 141 pressurize the upper support frame 83 respectively installed at both end portions 47 of the unit support 45. It is possible to prevent the contact unit 80 from rising upward.

As such, when the microbial contact material unit 80 is installed through the opening 46 of the unit support 45, the string-like microbial contact material 3 can be installed at a predetermined interval on the contact oxidation tank 40. A second diffuser device 5b is installed below the string-like microbial contact material 3. The second diffuser device 5b is further provided with a broa for supplying air and a control valve for controlling the flow of air.

The contact oxidation tank 40 of the present invention allows the contact oxidation tank 40 to be aerated as a whole by uniformly installing a plurality of second diffuser devices 5b at regular intervals. In this way, the contact oxidation tank 40 is formed in an aerobic state through the second diffuser 5b provided under the string-like microbial contact material 3. That is, when air is supplied at a low pressure under the control of a controller (not shown), oxygen may be supplied to the contact oxidation tank 40 to form an aerobic state to decompose and remove organic matter.

In addition, the contact oxidizing tank 40 is not only remove the organic matter by the microorganisms that adhere to the string-like microorganism contact material 3, but also if the contact microorganisms attached to the string-like microorganism contact material 3 increases over time, the string-like microorganism The contact material 3 sticks together in the shape of a rod, so that the contact area is significantly reduced and the flow of water flow is disturbed, so that an oxygen free state is partially formed and nitrogen removal by the denitrifying microorganism occurs.

 On the other hand, when the contact microorganisms attached to the string-like microbial contact material 3 is excessively increased and the channel is closed to reduce the treatment efficiency, the string-like microbial contact material 3 is formed by forming a strong water flow through the second diffuser 5b. ) Can remove microorganisms that are too attached. That is, when air is supplied at a high pressure, the microorganisms excessively attached to the string-like microbial contact material 3 are separated and removed.

And the bottom of the contact oxidation tank 40 may be installed to prevent the injury plate 59 to prevent the injury of the deposit. The anti-floating plate 59 prevents the sludge settled to the bottom from rising when forming the water flow at a strong pressure. To this end, the anti-floating plate 59 is formed with an inclined surface and a through hole so that sludge flows smoothly, and is installed at a predetermined height from the bottom surface.

Finally, the sludge contained in the treated water discharged from the contact oxidation tank 40 is separated from the second settling tank 50. That is, the contact oxidation tank 40 periodically generates a high pressure bubble to separate the contact microorganisms attached to the string-like microbial contact material 3, so that the second precipitation tank 50 is separated from the string-like microbial contact material 3. Microorganisms are introduced with the treated water. Therefore, a second inclined plate device 70 for separating the sludge and the treated water is installed in the second settling tank 50.

As shown in FIG. 8, the second inclined plate device 70 is spaced apart at regular intervals from the inclined plate frame 73 formed of the upper frame 71 and the lower frame 71 having a frame shape, and the inclined plate frame 73. It includes a plurality of inclined plate 75 is installed obliquely and a plurality of vibration generators 130 provided on the inclined plate frame 73.

 The inclined plate 75 is a metal or synthetic resin plate of corrosion resistance and durability, a plurality of inclined plate 75 is installed at a constant angle to form a water passage between the inclined plate 75. And the support frame 76 is installed on the upper frame 71, the support wing 76 is over the inclined plate support 145 is installed in parallel to the upper portion of the second settling tank (50).

9, the vibration generator 130 is fixed to the inclined plate frame 73 through the vibration transmission plate 137. The vibration generating piece 131 is integrally formed at the tip of the vibration transmitting plate 137. That is, one end of the vibration generating piece 131 is integrally connected with the vibration transfer plate 137 and the other end forms a free end. And the vibration generating piece 131 is formed to protrude a certain height to the top of the upper frame (71).

 More specifically, the vibration transmission plate 137 is a metal plate having a predetermined width and length, the vibration generating piece 131 is integrally formed at the front end and the coupling portion 138 coupled to the inclined plate frame 73 at the rear end thereof. Is formed. A plurality of bolt holes 139 may be formed in the coupling part 138. The vibration transmitting plate 137 has sufficient strength to transmit the vibration generated from the vibration generating piece 131. The vibration generating piece 131 generates vibration when an external force is applied. That is, when the upper end of the vibration generating piece 131 is pressed down and released, the vibration generating piece 131 vibrates up and down by the elastic restoring force of the vibration transmitting plate 137.

10 shows another embodiment of the second inclined plate device 70 according to the present invention, and the bubble collection container 132 is further formed on the vibration generating piece 131. The bubble collection container 132 generates vibration by collecting bubbles generated in the water. As shown in FIGS. 11 and 12, the bubble collecting container 132 is a container made of metal or synthetic resin, and the lower end of the bubble collecting container 132 is open to collect bubbles rising from the lower part, and the upper collecting is in the bubble collecting container 132. Bubble discharge port 133 is formed to a predetermined size so that the bubble is discharged to the outside.

A third diffuser 5c is installed below the second inclined plate device 70. The third diffuser (5c) is installed in the water to generate bubbles, various kinds can be used. For example, an acid substrate made of porous ceramics, an acid diffuser provided with a hole in a nozzle state, or the like can be used. The third diffuser 5c may further include a broa and a control valve for pumping air.

In addition, the scraper 180 is horizontally installed on the second inclined plate device 70 so as to contact the vibration generating piece 131 of the vibration generator 130. Therefore, by moving the scraper 180 to the left and right, it is possible to periodically remove the deposits accumulated between the inclined plate. That is, when deposits are accumulated on the inclined plate 75, the scraper 180 may be transferred in the horizontal direction or air may be supplied to the third diffuser 5c to periodically remove the deposits on the inclined plate.

That is, when the scraper 180 is moved in the horizontal direction, the vibration generating piece 131 is pushed down by the scraper 180 and then raised to raise the vibration. In addition, when bubbles are generated in the third diffuser 5c, bubbles rising from the third diffuser 5c are collected in the bubble collector 132, and when the amount of air collected is increased, the bubble collector 132 is inside. As the pressure increases, bubbles are generated through the bubble discharge port 133 and vibration is generated.

The vibration generated from the vibration generating piece 131 and the bubble collecting container 132 is transmitted to the inclined plate frame 73 through the vibration transfer plate 137. And when the vibration is transmitted from the plurality of vibration generators 130 installed on the inclined plate frame 73, the inclined plate module across the support 55 causes the vibration to remove the sediment deposited on the upper surface of the inclined plate 75 down Will be. Therefore, the present invention can clean the inclined plate 75 without stopping the operation of the settling tank.

Hereinafter, the operation of the direct aeration polluted river purification apparatus according to the present invention. First, when the contaminated river water flows into the direct aeration polluted river purification apparatus 1 according to the present invention, first, the contaminants (mainly large suspended solids) are filtered by the screen 10. And after the contaminants are removed from the screen 10, the influent flows into the settlement 20. In the settlement 20, the sedimentary material having a large specific gravity is settled and removed from the influent.

And the inflow water from the settlement 20 goes into the first settling tank (30). In this case, an emergency shutoff valve (not shown) may be installed at the front end of the first settling tank 30. The emergency shutoff valve is operated when a flow rate of the treated water is sensed by a flow meter installed in the outlet of the second settling tank 50 at least 5% of the normal time, thereby blocking further inflow of influent.

In addition, the emergency shutoff valve may be connected to a control unit (not shown) to operate the diffuser device 5. When the air diffuser is operated, bubbles or water flows of strong pressure are generated in the first settling tank 30, the contact oxidation tank 40, and the second settling tank 50 to remove suspended solids accumulated on the inclined plate, or the string type microbial contact material (3). Desorb sludge accumulated in the

Subsequently, the first settling tank 30 precipitates and removes the suspended solids contained in the contaminated river water. In particular, the first inclined plate device 60 installed in the first settling tank 30 effectively removes the suspended solids contained in the contaminated river water to prevent the suspended solids from adhering to the microbial contact material 3.

In addition, the contaminated river water introduced into the contact oxidation tank 40 is decomposed by the microorganisms that adhere to the string-like microbial contact material 3, and ammonia nitrogen is converted into nitrate nitrogen. To this end, the contact oxidation tank 40 is installed in the lower portion of the string-like microbial contact material (3) to maintain the aerobic state through a direct aeration device. In addition, a part of the oxygen-free state is formed in the string-like microbial contact material 3 to convert the nitrate nitrogen to nitrogen gas to remove. In other words, when the microbial membrane attached to the string-like microbial contact material 3 becomes thicker as time passes, an anoxic state is partially formed therein. When the microbial membrane attached to the string-like microbial contact material 3 is excessively attached, it can be removed by operating the second diffuser 5b.

Finally, the sludge generated in the contact oxidation tank 40 is separated from the second settling tank (50). To this end, a second inclined plate device 70 is installed in the second settling tank 50. The second inclined plate device 70 separates the treated water discharged from the contact oxidation tank 40 into a supernatant and sludge, discharges the supernatant into a stream, and sets the sludge down to periodically dredge and remove or not shown. Discharge to the outside through the discharge device.

Since the treated water flowing into the second settling tank 50 includes a large amount of sludge, sediment is accumulated on the inclined plate 75 of the second inclined plate device 70 so that the waterway is often blocked. Therefore, in this case, the vibration generator 130 may be periodically moved by moving the scraper 180 provided on the upper portion of the inclined plate apparatus 70 to the left or right or by operating the third diffuser device 5c provided in the lower portion of the inclined plate apparatus 70. Vibrate).

When the vibration generator 130 vibrates, the entire inclination plate frame 73 may vibrate to periodically remove deposits accumulated between the inclination plates 75. In particular, the present invention can remove the deposits accumulated on the inclined plate 75 without stopping the operation of the settling tank 50 has the effect of improving the treatment efficiency.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. That is, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. Therefore, the protection scope of the present invention should be interpreted by the claims below, and all technical ideas within the equivalent scope will be construed as being included in the scope of the present invention.

3: string type microbial contact material 5: diffuser
10: screen 20: tide tank
30: first precipitation tank 40: catalytic oxidation tank
45: unit support 46; Opening
47: step 50: second settling tank
59: injury prevention plate 60: first inclined plate device
63: inclined plate frame 65: inclined plate
70: second inclined plate device 71: upper frame
72: lower frame 73: inclined plate frame
75: inclined plate 80: microbial contact unit
81: upper support frame 82: lower support frame
83: upper frame 85: tension control
130: vibration generator 131: vibration generating piece
132: bubble collection container 133: bubble outlet
137: vibration plate 140: fixing device
141: fixing bolt 142: fixing plate
143: wing 145: tightening nut
180: scraper 181: upper hanger
182: lower hanger 185: through hole
190: fixing hook 192: hook portion
193: catch

Claims (12)

In the polluted river purification device installed in the river or lakeside to remove the suspended substances and organic substances contained in the contaminated river water using microorganisms,
A screen installed at an inlet through which contaminated river water is introduced to remove contaminants;
A sedimentation tank installed at the rear end of the screen for sedimenting and separating sand or mud contained in contaminated river water;
A first inclined plate including an inclined plate frame having an upper frame and a lower frame therein and a plurality of inclined plates provided at predetermined intervals in the inclined plate frame to settle and remove suspended solids contained in the contaminated river water passing through the settling tank A first settling tank in which the apparatus is installed;
The contaminated stream water that has passed through the first settling tank is formed in an aerobic state so that a string-like microbial contact material is installed at regular intervals in order to decompose and remove organic substances contained in the contaminated river water, and a plurality of diffuser devices are installed at the lower part. A contact oxidation tank for directly aeration of the string-like microbial contact material;
An inclined plate frame having an upper frame and a lower frame therein so as to settle and separate sludge contained in the treated water discharged from the contact oxidizing tank, a plurality of inclined plates installed at predetermined intervals inside the inclined plate frame, and the inclined plate And a second settling tank provided with a second inclined plate device including a plurality of vibration generators installed on the frame to generate vibrations. The method according to claim 1,
Directly characterized in that the first settling device and the third settling device is installed in the lower portion of the first settling tank and the second settling device to remove the sediment deposited on the upper surface of the inclined plate by using the fine bubbles generated in the diffuser. Aeration Pollutant Filter. The method of claim 2,
The contact oxidation tank is provided with a plurality of microbial contact material unit including a plurality of string-like microbial contact material, the microbial contact material unit is installed through the opening of the unit support horizontally installed on the upper portion of the contact oxidation tank Direct Aeration Pollutant Filter. The method of claim 3,
The microbial contact material unit,
An upper support frame provided with an upper support in the form of a grid;
A lower support frame provided with a lower support grid;
A cord-shaped microbial contact member disposed between the upper support frame and the lower support frame;
An upper support frame installed to protrude outwardly of the upper support frame to be mounted on the unit support;
And a tension controller fixed between the upper support frame and the lower support frame to adjust the tension of the string-like microbial contact material. 5. The method of claim 4,
The upper support frame and the lower support frame is provided with a plurality of fixing hooks, the fixing hook is a hook portion which is connected to the fixing portion welded to the upper support frame and the lower support frame and the string-type microbial contact material, the tip of the hook portion Directly aerated polluted river purification apparatus, characterized in that it is installed to be inclined downward and comprises a locking portion for fixing the string-like microbial contact material. 5. The method of claim 4,
Direct aeration type polluted river purification apparatus, characterized in that a plurality of through holes are formed at a predetermined interval at the lower end of the tension controller. 5. The method of claim 4,
A fixing bolt installed vertically in the center of the unit support;
The fixing plate is installed in the longitudinal direction on the unit support and is formed in the middle of the fastening hole penetrating the fixing bolt, and the left and right sides of the fixing plate integrally formed with wings to press the upper support frame installed on the stepped support of the unit support, and fastening of the fixing plate Direct aeration polluted river purification apparatus, characterized in that the fixing device further comprises a fastening nut coupled to the fixing bolt through the hole. The method according to any one of claims 1 to 7,
The vibration generator,
A vibration generating piece installed to protrude a predetermined height to an upper portion of the upper frame;
And a vibration transfer plate which fixes the vibration generating piece to the upper frame to transmit vibrations. The method according to any one of claims 1 to 7,
The vibration generator,
A bubble collecting container having an internal space having a predetermined size and an open bottom;
A bubble outlet formed at an upper end of the bubble container;
Directly aerated pollutant stream purification apparatus comprising a; a vibration transfer plate for transmitting the vibration by fixing the bubble collection container to the upper frame. The method of claim 8,
Direct aeration type polluted river purification apparatus, characterized in that the scraper for moving in the horizontal direction to generate a vibration in contact with the vibration generating piece in the upper portion of the inclined plate frame of the second precipitation tank. 10. The method of claim 9,
The bubble collection container is a direct aeration polluted river purification apparatus, characterized in that for generating vibration by the bubbles generated in the third diffuser installed in the lower portion of the inclined plate frame. 12. The method of claim 11,
The bubble collection container is a direct aeration polluted river purification apparatus, characterized in that the diameter is made wider toward the lower portion to facilitate the collection of bubbles from the bottom.

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