KR102049073B1 - Wastewater Treatment Systems including High Efficiency Water Separator and Pressure Lifting System - Google Patents

Abstract

The present invention relates to a distributed high-efficiency oil-water separator using a prefabricated slope plate, which comprises: a treatment tank (100) having a dispersion plate (102) of inflow wastewater provided at one side thereof and a collection part (190) and a water flow control tank (180) provided at the other side thereof; a slope plate (110) installed inside the treatment tank (100) by performing assembly to have a waterway (114) and a corrugated oil passage (115) when a unit (U) having a coupling protrusion part (112) at an end of both side units (111) and a coupling groove part (113) at both sides of a surface part is assembled in a honeycomb shape; a water flow dispersion plate (120) installed on an upper surface of an entry of the slope plate (110) to disperse a water flow to the slope plate (110); a blocking plate (130) for blocking the wastewater from flowing into a lower portion of the slope plate (110); a collector (140) for transmitting oil floating on an upper portion thereof to a collection part (190); a treated water collecting pipe (150) installed at a lower portion of the slope plate (110) to introduce treated water; a connection pipe (160) connected to the treated water collecting pipe (150), and having one end protruding into a water flow control tank (180); and a water level control pipe (170) installed on an upper portion of the connection pipe (160) in a lifting manner, and controlling a water level of the water flow control tank (180). Accordingly, the remaining time of water flow is induced to be extended, and the water flow is maximally dispersed, thereby increasing the efficiency of oil-water separation.

Description

Wastewater Treatment System including High Efficiency Water Separator and Pressure Flotation Tank {Wastewater Treatment Systems including High Efficiency Water Separator and Pressure Lifting System}

The present invention relates to a wastewater treatment apparatus including an oil-water separator and a pressurized floatation tank, and more particularly, to install an inclined plate assembled in a honeycomb form at an inclined angle in a treatment tank, and to easily adjust the residence time of the water stream while maintaining the flow of the water stream. Wastewater treatment device that includes a highly efficient oil and water separator and pressurized floatation, which can be selectively used as a pressurized flotation tank that circulates and supplies some of the treated water to the circulating water containing fine bubbles if necessary by dispersing as much as possible. It is about.

In general, wastewater is classified into wastewater discharged from each home, public building, and business building, and factory wastewater discharged from a factory. Factory wastewater is again included in industrial wastewater in a broad sense, and various waste water (hereinafter, wastewater) Collectively) is the cause of water pollution and soil pollution when discharged as it is without treatment.

Therefore, most of the wastewater is treated with contaminants using a wastewater treatment apparatus using a flotation tank, a sedimentation tank, and an oil / water separator.

The wastewater treatment device composed of the flotation tank is a solid / liquid separation device that floats the treated water introduced into the wastewater inlet horizontally and floats the foreign matter lighter than the water to the upper portion of the treatment tank and removes bubbles from the treated water. There is also a pressurized flotation method to increase the efficiency of flotation of the sludge contained in the waste water by supplying a pressurized gas.

The wastewater treatment apparatus using the sedimentation tank and the oil / water separator can be said to have high treatment efficiency because it is a method of sedimentation with only a horizontal flow of water.

That is, the sedimentation tank is a solid / liquid separation device for sedimenting and removing material heavier than water in the waste water in the lower portion of the treatment tank.

The oil / water separator is a device that separates water from water by using a self-floating force of a material (naturally floating) that is lighter than water, such as oil.

The prior art of such a wastewater treatment apparatus is disclosed in Korean Patent Application Publication No. 10-2007-0048142 (published on May 08, 2007), which was developed by the present applicant and registered as No. 10-0789996, as disclosed in the following patent document. Waste water treatment system including flotation tank, sedimentation tank and oil / water separator ”(hereinafter referred to as“ prior art 1 ”).

The prior art 1 is provided with at least one water dispersion panel having a plurality of holes formed in the wastewater treatment tank, the rear side of the water dispersion panel is installed with a set of sedimentation induction through which a plurality of inclined plates are filled at a predetermined interval, facing the wastewater inlet The opposite side is provided with an inlet which is controlled by a moving member and a fixed member which are adjusted up and down, and has a sedimentation induction pipe installed at an oblique plate between the water distribution panels, and discharged to the wastewater outlet according to the size of the inlet. To adjust.

The prior art 1 is to allow the oil and water to be separated using a wave inclined plate when the inclined plate is inclined obliquely to induce the flow of water flow into the sedimentation duct installed downward, the separation efficiency of oil and water with such a wave inclined plate There is a problem that can not maximize, and do not increase the efficiency of the sludge rise.

In addition, the prior art of the oil-water separator used in the oil-water separator is a "oil-water separator for oil-water separator" of the Korean Utility Model Publication No. 20-2001-0002169 (published Jan. 26, 2001) disclosed in the following patent document: (Hereinafter referred to as 'prior art 2')

In the prior art 2, a plurality of wave plates bent in a wave shape along the transverse direction of the oil / water separator used in the oil / water separator are overlapped to be spaced apart from each other by a predetermined angle to be installed at an inclined angle.

However, simply passing the wave-shaped oil-water separation plate as described above has a problem that the efficiency of oil-water separation is not so high because the flow in which water and oil must cross each other is not effective.

Republic of Korea Patent Publication No. 10-2007-0048142 (published May 8, 2007) "Waste water treatment apparatus including the flotation tank, sedimentation tank and oil-water separator" "Oil Separator for Oil-water Separator" of Korean Utility Model Publication No. 20-2001-0002169 (published Jan. 26, 2001)

The present invention has been developed to improve the problems of the prior art as described above, the object of the present invention is to easily adjust the residence time of the water stream to maximize the flow efficiency of water flow separation and sludge according to the maximum dispersion of the flow stream The present invention provides a wastewater treatment apparatus including a high efficiency oil water separator and a pressurized floatation tank.

Another object of the present invention is to see the optimum treatment efficiency for the treatment of wastewater, which is very slow floating speed, in particular, a high-efficiency oil-water separator that can further increase the treatment efficiency by operating in a power method for supplying fine bubbles to the treatment tank The present invention provides a wastewater treatment apparatus including a pressurized floatation tank.

In order to achieve the above object, the present invention is provided with a distribution plate of the incoming wastewater on the front side, and a treatment tank provided with a collecting portion and a water flow control tank on the rear side; An inclined plate which is provided at both ends of the coupling protrusions, and is continuously assembled in a honeycomb unit with coupling grooves formed at both sides of the surface to be provided with a passage at the bottom and a corrugated oil passage at the center thereof and installed inside the treatment tank; A water flow distribution plate for distributing the water flow from the dispersion plate to the inclined plate; Block plate to block the inflow of waste water to the lower portion of the inclined plate; A collector for sending the oil rising to the upper part of the house; A treated water collecting pipe installed at a lower portion of the inclined plate to receive the treated water; A connection pipe connected to the treatment water collection pipe and having one end protruding into the water flow control tank; A level control pipe installed on an upper portion of the connector to adjust the level of the water flow control tank; It can be achieved by configuring.

In addition, during the above configuration, the treatment tank is made to be less than 2m in height, while the length of the front and rear compared to the height is more than twice longer, the water flow distribution plate consisting of a porous plate to distribute the water flow horizontally so that the flow of water flow to the upper far It is installed at the top of the initial stage of the treatment tank, and the inclined plate is installed close to the rear collecting part so that it can be located as far as possible from the water distribution plate in the low and long treatment tank. It can be achieved by configuring to increase the floating efficiency.

In addition, one side of the connection pipe is provided with a circulation pipe for circulating the treated water to the dispersion plate, and if the microbubble generator and the pressure pump is provided in the circulation pipe to operate the high efficiency oil water separator and the pressurized floatation tank by a power method to improve the treatment efficiency. Since it can increase, the said objective can be achieved effectively.

Such the present invention has the effect of high efficiency in the separation of water flow by inducing a long residence time of the water flow by the water level control in the water flow control tank and dispersing the flow of the water as possible.

In addition, as described above, the residence time of the water stream is maximized as long as possible, and by mixing the pressurized pumping of the circulating water containing a large amount of microbubbles in the treated water in which the water flow is dispersed, a portion of the treated water is circulated if necessary. There is an effect that can be selectively used as a pressure flotation tank circulated supply.

In addition, since the inclined plate in the treatment tank is installed in a honeycomb form in which passages and oil passages are separated during continuous assembly of the unit, the efficiency of oil separation can be increased when passing through the inclined plate.

1 is a side view showing the structure of a wastewater treatment apparatus according to the present invention
2 is a plan view showing the structure of a wastewater treatment apparatus according to the present invention;
Figure 3 is a side view showing another embodiment of the wastewater treatment apparatus of the present invention
Figure 4 is a view showing the assembly structure of the inclined plate installed in the present invention
Figure 5 is a cross-sectional view of the water level control tube is installed in the water flow control tank of the present invention
Figure 6 is a state diagram configured the present invention with a pressure flotation wastewater treatment apparatus
7 is a state in which the present invention is configured as a wastewater treatment apparatus having a low speed of injury

Hereinafter will be described in detail with reference to the accompanying drawings as a preferred embodiment the preferred technical configuration and effect that can effectively achieve the features of the present invention.

1 is a side view showing the internal structure of the oil and water separator in which the present invention is carried out, Figure 2 is a plan view showing the structure of the oil and water separator in which the present invention is implemented, Figure 4 is a view showing the assembly structure of the inclined plate installed in the present invention. to be.

The distributed high efficiency oil and water separator using the prefabricated slant plate of the present invention shown in the treatment tank 100, the slant plate 110, the water distribution plate 120, the blocking plate 130, the collector 140, the treatment for oil water separation It is composed of a water collecting pipe 150, a connecting pipe 160, the water level control pipe (170).

The treatment tank 100 is provided with a distribution plate 102 on one side for dispersing wastewater flowing into the wastewater inlet 101 in up, down, left, and right directions, and storing separated oil on the other side. The collecting part 190 and the water flow control tank 180 are provided.

The inclined plate 110 is installed in an inclined shape in the treatment tank 100, and when the waste water passes downward, the oil is raised and the water flows downward to separate the water and the oil.

The inclined plate 110 is provided with a coupling protrusion 112 at the ends of the left and right side portions 111, and a unit having a coupling groove portion 113 coupled to the coupling protrusion 112 on both surface portions bent in a mountain form ( It is preferable to continuously assemble the U) in a honeycomb form so that the channel 114 is provided at the bottom and the corrugated oil passage 115 is provided at the center of the ceiling.

When the inclined plate 110 is assembled with the unit U, the water flow 114 and the oil passage 115 are installed to be inclined in a direction opposite to the water flow direction by the water flow distribution plate 120 as shown in FIG. 1. Although it is preferable to be able to stay longer, it may be inclined in the same direction as the flow of water by the water distribution plate 120 as shown in FIG.

The water flow distribution plate 120 is formed of a porous plate is installed on the upper surface of the inlet of the inclined plate 110, and distributes the water flow toward the inclined plate 110 horizontally.

The blocking plate 130 is disposed in the treatment tank 100 so that wastewater flowing in and out through the distribution plate 102 at the wastewater inlet 101 of the treatment tank 100 does not directly flow backward through the lower portion of the inclined plate 110. Block the inner bottom of the to a certain depth to induce precipitation of sediment sludge contained in the waste water.

The collector 140 is installed above the treatment tank 100, and sends the oil separated from the water by the inclination plate 110 to the collecting unit 190 to discharge only the oil.

The treated water collecting pipe 150 is horizontally installed at a predetermined interval from the bottom of the inclined plate 110 to the end of the inclined plate 110 so that the oil-treated treated water comes down through the inclined plate 110 to be collected through the through-hole.

The connection pipe 160 is a pipe connecting the treated water collecting pipe 150 and the water flow control tank 180, one end is installed to protrude into the water flow control tank 180.

The water level control pipe 170 is installed in an elevated manner to the upper portion of the connection pipe 160 protruding into the water flow control tank 180 to adjust the water level of the water flow control tank 180.

In the figure, reference numeral 191 is an oil outlet of the collecting unit 190, 181 is a treated water outlet of the water flow control tank 180, (U1) is the side of the inclined plate 110 is assembled in a honeycomb form. The coupling unit 112 and the coupling groove 113 on both ends in order to finish the is a finishing unit provided in the same shape of the same size.

When the wastewater introduced through the wastewater inlet 101 of the present invention is dispersed in both sides in the dispersion plate 102, the flow of water flow is blocked by the side of the inclination plate 110 and the blocking plate 130, As it goes up, it is possible to disperse the flow of the water flow through the porous water distribution plate 120 of the porous installed on the top surface of the inlet plate (110).

And the water flow dispersed by the water distribution plate 120 as described above is a unit (U) by the coupling protrusion 112 provided on both sides of the coupling protrusion 112 and the surface portion provided at the ends of the left and right sides 111 ) Is assembled in a honeycomb form and passes downwardly through the channel 114 of the inclined plate 110 installed at an oblique angle.

Thus, the corrugated oil passage 115 in the center of the various honeycomb channels 114 of the inclined plate 110 installed at an inclined angle is located at the top of the channel 114, so that the water flows downward along the channel 114, and the water flows downward. The lighter specific gravity of the oil rises up along the corrugated oil passage 115, so water and oil are separated more quickly and reliably.

Then, the oil which is separated from the water in the inclined plate 110 and raised is collected by the collector 140 and sent to the collecting unit 190, and the water separated and separated by the oil is collected in the bottom of the inclined plate 110. After being introduced into the inside of the pipe 150, it is introduced upwardly into the water flow control tank 180 through the connection pipe 160.

At this time, the elevating type water level control pipe 170 is installed on the upper portion of the connection pipe 160 protruding in the water flow control tank 180, and the water level control tank 180 by adjusting the height of the water level control pipe 170 according to the quantity. ) Level is adjusted.

Here, Figure 5 is a cross-sectional view of the water level control pipe 170 is installed in the water flow control tank 180 of the present invention, as shown in the present invention, the fixing ring 162 is bolted to the top of the connection pipe 160 It is provided with a flange 161 to be fastened to, and between the flange 161 and the fixing ring 162 to install the airtight packing material 163 of the water level control pipe 170, the upper surface of the water level control pipe 170 It is characterized in that the lifting structure of the water level control pipe 170 is provided with a screw rod 171 that is elevated in accordance with the direction to rotate the rotary knob 172 installed on the bracket 173 on the processing tank 100.

Accordingly, since the rising and falling of the water level control pipe 170 is freely adjusted according to the direction of rotating the rotary knob 172, it is possible to quickly and simply adjust the water level of the water flow control tank 180, the water flow control tank ( If the water level of 180 is adjusted, it is possible to induce a long residence time of the water flow in the inclined plate 110, so that high-efficiency oil-water separation is possible.

When the water level control pipe 170 is raised or lowered, the packing material 163 maintains airtight while maintaining the state installed on the flange 161 by the fixing ring 162, so that the water level control pipe 170 is The water level can be adjusted accurately according to the height adjustment.

In the present invention, the inclined plate 110, the bottom surface and the water flow control tank 180, two sets of treated water collecting pipe 150 and the connection pipe 160 and elevating water level control pipe 170 for collecting and discharging the treated water It can install in multiple layers above. This can further increase the efficiency of the treatment, as the stream can be further dispersed and discharged.

6 is a view showing an example of a configuration of a pressure flotation wastewater treatment device as another embodiment of the present invention.

The present invention shown in the present invention circulates the treated water to the dispersing plate 102 on one side of the connecting pipe 160 for sending the treated water treated with the inclined plate 110 in the treatment tank 100 in a water flow control tank 180. The circulation pipe 210 may be provided, and the circulation pipe 210 may be configured as a power wastewater treatment device including a micro bubble generator 220 and a pressure pump 230.

The present invention is a large amount of fine by the microbubble generator 220 when pumping a portion of the treated water passing through the connecting pipe 160 to the distribution plate 102 of the wastewater inlet 101 by the pressure pump 230 It is possible to increase the floating efficiency of the suspended solids by supplying the circulating water containing the bubbles. Therefore, the treatment tank 100 may be selectively used as a pressure levitation tank that is circulated and supplied as part of the treated water to the circulating water containing fine bubbles when necessary.

FIG. 7 is a view showing a state in which another embodiment of the present invention is configured as an apparatus for treating wastewater having a low floating speed.

In the present invention shown in the configuration, the treatment tank 100 is made of a length of 2 times or more than the height of the front and rear while lowering the height to 2m or less, and consists of a porous plate to distribute the flow of water flow plate 120 Is installed at the top of the beginning of the processing tank 100 to send the flow of water to the upper far, the inclined plate 110 is located in the rear and so as to be as far as possible with the water distribution plate 120 in the processing tank 100 made low and long It may be installed near the collecting unit 190.

Since the treatment tank 100 has a blocking plate 130 at the lower portion of the water distribution plate 120, the wastewater introduced from the distribution plate 102 is in a state where the speed of the wastewater is very slow. Pass through plate 120.

At this time, the treatment tank 100 is made lower than the height of the general wastewater treatment device while the length is made longer so that the distance from the water distribution plate 120 to the collecting portion 190 is far, such a collecting portion 190 Since the inclined plate 110 and the treated water collecting pipe 150 is installed close to the flow of water flow through the water distribution plate 120 to the top of the inclined plate 110 as far as possible from the top of the treatment tank 100 Slowly flowing down to the inclined plate 110 to be collected by the treated water collecting pipe 150.

Therefore, even though the speed of injury is low, the collection of oil or floating material may be smoothly flowed while flowing slowly from the upper portion of the treatment tank 100 as far as possible.

100: treatment tank 102: dispersion plate
110: inclined plate 112: coupling protrusion
113: coupling groove 114: waterway
115: oil passage 120: water distribution plate
130: blocking plate 140: collector
150: treatment water collection pipe 160: connector
170: level control pipe 180: level control tank
190: collecting part 210: circulation tube
220: fine bubble generator 230: pressurized pump
U: Unit U1: Finishing Unit

Claims (7)

In constructing a wastewater treatment apparatus including an oil water separator and a pressurized floatation tank,
Dispersion plate 102 for dispersing the inflow waste water is provided on the front, the treatment tank 100 provided with a collecting unit 190 and the water flow control tank 180 on the rear;
Is installed in the interior of the treatment tank 100 inclined, when the waste water passes downward the oil is raised and the water is lowered down the inclined plate 110 to separate the water and oil;
A water flow distribution plate 120 formed on the top surface of the first entrance of the inclined plate 110 to horizontally distribute the water flow toward the inclined plate 110;
Blocking plate 130 for blocking the lower end of the inclined plate 110 to prevent the wastewater flowing in from the distribution plate 102 flows directly into the lower portion of the inclined plate 110;
A collector 140 installed at an upper portion of the treatment tank 100 and sending the separated oil or flotation sludge to the collecting unit 190;
A treated water collecting pipe 150 installed horizontally under the inclined plate 110 to collect oil introduced through slanted or sludge-floating treated water through a through hole;
A connection pipe 160 connecting the treated water collecting pipe 150 and the water flow control tank 180, one end of which is projected into the water flow control tank 180;
Consists of a water level control pipe (170) for adjusting the water level of the water flow control tank 180 is installed in the elevating type above the connection pipe 160 protruding into the water flow control tank 180;
The upper end of the connecting pipe 160 is provided with a flange 161 to which the fixing ring 162 is fastened with a bolt,
Between the flange 161 and the fixing ring 162 is installed a packing material 163 for maintaining the airtightness of the water level control pipe 170,
On the upper surface of the water level control pipe 170 is provided with a screw rod 171 which is elevated in accordance with the direction to rotate the rotary knob 172 installed on the bracket 173 on the treatment tank 100
Rotating handle (172) Waste water treatment apparatus comprising a high efficiency oil and water separator and pressure relief tank, characterized in that the level control is precisely maintained while maintaining the airtight of the level control pipe (170) to be elevated in accordance with the rotation direction.
In constructing a wastewater treatment apparatus including an oil water separator and a pressurized floatation tank,
Dispersion plate 102 for dispersing the influent wastewater is provided on the front, and the collecting portion 190 and the water flow control tank 180 is provided on the rear, while the height is low and the length of the front and rear processing is more than two times longer than the height Bath 100;
It consists of a porous plate to distribute the water flow horizontally, the water flow distribution plate 120 is installed on the top of the beginning of the processing tank 100 to send the flow of water to the upper far;
Blocking plate 130 for blocking the lower end of the water distribution plate 120 so that the waste water flows in the dispersion plate 102 is passed only to the water distribution plate 120 of the upper side;
An inclined plate 110 installed close to the rear collecting part 190 so as to be as far away from the water distribution plate 120 as possible;
A collector 140 installed at an upper portion of the treatment tank 100 and sending the separated oil or flotation sludge to the collecting unit 190;
A treated water collecting pipe 150 installed horizontally below the inclined plate 110 to collect oil introduced through sludge or sludge-floating treated water through a through hole;
A connection pipe 160 connecting the treated water collecting pipe 150 and the water flow control tank 180, one end of which is projected into the water flow control tank 180;
Consists of a water level control pipe (170) for adjusting the water level of the water flow control tank 180 is installed in the elevating type above the connection pipe 160 protruding into the water flow control tank 180;
The upper end of the connecting pipe 160 is provided with a flange 161 to which the fixing ring 162 is fastened with a bolt,
Between the flange 161 and the fixing ring 162 is installed a packing material 163 for maintaining the airtightness of the water level control pipe 170,
On the upper surface of the water level control pipe 170 is provided with a screw rod 171 which is elevated in accordance with the direction to rotate the rotary knob 172 installed on the bracket 173 on the treatment tank 100
Rotating handle (172) Waste water treatment apparatus comprising a high efficiency oil and water separator and pressure relief tank, characterized in that the level control is precisely maintained while maintaining the airtight of the level control pipe (170) to be elevated in accordance with the rotation direction.
The method according to claim 1 or 2,
Slope plate 110,
Coupling protrusions 112 are provided at the ends of the left and right side portions 111, and the unit U having the coupling grooves 113 coupled to the coupling protrusions 112 is formed at both sides of the surface portions bent in a mountain form in a honeycomb form. The waste water treatment apparatus comprising a high efficiency oil and water separator and a pressurized floatation tank, characterized in that the bottom is provided with a water channel 114 at the bottom and a corrugated oil passage 115 at the center of the ceiling.
The method according to claim 1 or 2,
The inclined plate 110 assembled with the unit (U)
Orient the water passage 114 and the oil passage 115 to be inclined in a direction opposite to the water flow direction by the water flow distribution plate 120 or
A waste water treatment apparatus comprising a high efficiency oil water separator and a pressurized floatation tank, wherein the water passage 114 and the oil passage 115 are inclined in the same direction as the water flow direction by the water flow distribution plate 120.
delete The method according to claim 1 or 2,
On the bottom of the inclined plate 110 and the water flow control tank 180,
The treatment water collection pipe 150 and the connection pipe 160 and the elevating water level control pipe 170 for collecting and discharging the treated water are installed in two or more layers in multiple layers to further disperse and discharge the water flow. Wastewater treatment apparatus comprising a high-efficiency oil water separator and a pressurized floatation tank characterized in that.
The method according to claim 1 or 2,
One side of the connecting pipe 160 is provided with a circulation pipe 210 for circulating the treated water to the dispersion plate 102,
The circulation pipe 210 is provided with a micro bubble generator 220 and a pressure pump 230
Wastewater treatment apparatus comprising a high-efficiency oil-water separator and a pressurization tank, characterized in that the circulating water containing a large amount of fine bubbles is pressure-mixed with the wastewater in the dispersion plate 102 to increase the floating efficiency of the suspended matter.

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