KR200365421Y1 - A treatment plant of wastewater - Google Patents

Abstract

The present invention is to remove the sludge contained in the waste water by using the filter cloth to remove the sludge stuck in the filter cloth without using a separate cleaning device using only the reverse pressure of the treatment tank can eliminate the waste ends generated in the conventional washing process. In addition, the present invention relates to a wastewater treatment apparatus that is easy to manage and clean the entire process.

Description

A treatment plant of wastewater

The present invention relates to a method for treating wastewater and its apparatus, and more particularly, to remove sludge caught in the filter cloth without a separate washing device in the process of physically separating the sludge through the filter cloth from the wastewater. The present invention relates to a method for treating sewage and wastewater which can be washed at the same time.

In general, in the process of purifying wastewater, the first step is a filtration process that physically removes solids such as sludge, slurries and suspended solids contained in the wastewater. And when it is introduced into the biological treatment tank is a big burden on the treatment function, and therefore the problem that the water treatment efficiency is significantly reduced.

It is also common for sewage treatment plants to be discharged through a final filtration process that removes sludge and solids before discharging all of the purified water.

As such a method for removing sludge contained in the wastewater, the wastewater introduced into the tank with a predetermined hydraulic pressure by a pump is allowed to pass through the filter cloth in which the fine pores are uniformly distributed on the front surface. The passed wastewater is sent to the next process, while the sludge filtered by the filter cloth is discharged through a separate sludge discharge line.

In addition, since the sludge accumulated between the micropores of the filter cloth affects the filtration efficiency of the filter cloth, the sludge is removed while the filter cloth is washed by the water sprayed through the nozzle of the injection pipe mounted on the top thereof. Is common.

However, the cleaning device used in the sludge filtration process as described above is not able to increase the pressure of the pump indefinitely in consideration of the installation regulations of the sludge dehydrator or the overall safety of the device, so that only the pure water pressure sprayed by the pump is effective. Sludge was not able to be removed and a large amount of washing water was required.

In addition, since the sludge-washing water is reused after the sludge contained in the water is filtered and the sludge remains in the washing water, a considerable amount of residue remains. Such a residue clogs the nozzle of the injection pipe when spraying the washing water. There was a closure such as deterioration.

In addition, in order to clean the nozzle, one side of the injection pipe must be separated and a cleaning brush must be inserted therein to clean the clogged nozzle. Therefore, the cleaning operation of the nozzle is quite cumbersome and the operation of the water supply pump has to be temporarily stopped. .

Therefore, the present invention is configured to solve the above-mentioned general problems, and in removing the sludge contained in the wastewater by using the filter cloth, it occurs in the conventional washing process by removing the sludge stuck in the filter cloth without a separate washing device. It is an object of the present invention to provide a wastewater treatment apparatus that can not only eliminate the old waste, but also facilitate the management and cleaning of the entire process.

1 is a front view schematically showing a wastewater treatment apparatus of the present invention

2 is a plan view showing the wastewater treatment apparatus of FIG.

Figure 3 is a front view schematically showing the main components of the present invention

<Detailed description of the major symbols in the drawings>

10: treatment tank

11 inflow pipe 12 transfer pipe

13: sludge discharge pipe 14: motor

15: inlet

20: backflow check

30: filter medium

31 head 32: filter cloth

40: blocking part

41 drive unit 42 power transmission unit

43: barrier 44: white paper

The present invention to achieve the above object,

In the sludge treatment apparatus for physically separating and removing the sludge by passing the waste water through a filter cloth uniformly distributed micropores,

A treatment tank each provided with an inflow pipe introducing the wastewater into the inside, a transfer pipe for transferring the filtered water to a later process, and a sludge discharge pipe for discharging the separated sludge to the outside;

A reverse flow check unit installed at one side of the inflow pipe in a vertical direction to check whether the wastewater flows back due to an increase in pressure in the treatment tank;

A plurality of filter bodies mounted inside the treatment tank and connected to a wastewater inflow pipe and a sludge discharge pipe at an upper end thereof, and a filter cloth surrounding an outer surface of the head part at a lower end of the head part;

It is achieved by providing a treatment device for wastewater, characterized in that it comprises a; blocking portion that can selectively block the wastewater inlet pipe and sludge discharge pipe connected to the head portion of the filter medium.

Hereinafter, the technical details of the present invention will be described in more detail with reference to specific embodiments shown in the accompanying drawings, but the present invention is not limited to the embodiments shown in the drawings.

1 is a front view schematically showing a wastewater treatment apparatus of the present invention, Figure 2 is a plan view showing the wastewater treatment apparatus of FIG.

As shown in FIG. 1 and FIG. 2, the wastewater treatment apparatus of the present invention is largely to check whether the wastewater flows into the treatment tank 10 through which the filtration process proceeds, and whether the wastewater flows backward. The backflow check unit 20, the filter body 30 to separate the sludge from the waste water and the blocking portion 40 to selectively block the inflow of waste water, or discharge of the sludge.

First, the treatment tank 10 is a place where a filtration process for separating sludge from wastewater is carried out, the size or shape of which is variablely formed in consideration of the place to be installed, the available area, and the treatment capacity.

In this treatment tank 10, the inlet pipe 11 for introducing the wastewater into the treatment tank 10 via the filter body 30, and the treated water filtered through the filter body 30 to be transferred to a later process. The sludge discharge pipe 13 for discharging the sludge separated by the filter body 30 and the sludge discharge pipe 13 to the outside is provided, respectively.

In addition, the inlet pipe 11 is connected to the pump 14, so that the waste water introduced through the inlet 15 has a predetermined hydraulic pressure by the pump 14 to be introduced through the inlet pipe 11. At the same time, it is common that the inlet pipe 11 and the transfer pipe 13 are each provided with a pressure control valve so that all the filtration processes are performed under a predetermined pressure set by the user.

The reverse flow check unit 20 is installed at one side of the inflow pipe 11 in a vertical direction to check whether the wastewater flows back due to an increase in pressure in the tank.

When the amount of sludge accumulated in the filter cloth 32 of the filter body 30 is increased, the countercurrent flow of the wastewater is abruptly reduced as the amount of treated water is filtered out, and the filtration pressure is rapidly increased. The wastewater does not flow into the treatment tank, but stands in the inflow pipe 11 or flows in the opposite direction.

Therefore, when the backflow of the wastewater proceeds, the wastewater that failed to proceed along the inlet pipe 11 is discharged to the backflow check unit 20 installed in a direction perpendicular to the inlet pipe 11 due to the continuous increase in pressure. As a result, it is possible to check whether the wastewater is backflowed.

The filter body 30 is provided with a head portion 31 connected to the wastewater inlet pipe 11 and the sludge discharge pipe 13 at the upper end, the lower end of the head portion 31 is a filter cloth with uniformly distributed micropores ( 32 is immersed in the processing tank 10 with the outer surface part formed.

The filter body 30 receives the wastewater from the inlet pipe 11 to perform a filtration process to separate the sludge, and the treated water filtered through the filter cloth 32 is treated as a treatment tank 10. Sludge which is transported for the subsequent process along the conveying pipe 12 of the sludge that has not passed through the filter cloth 32 is accumulated and subsequently passed through the sludge discharge pipe 13 through the head portion 31 by the reverse pressure. To be discharged. In addition, a plurality of such filter bodies 30 are installed in the treatment tank 10 in consideration of the treatment capacity of the wastewater.

Blocking unit 40 is provided with respect to one filter medium 30, one by one, selectively to the waste water inlet pipe 11 or sludge discharge pipe 13 connected to the head portion 31 of the filter medium (30) Blocking the sludge discharge pipe 13 while the wastewater is introduced into the filtration process, and conversely blocks the wastewater inflow pipe 11 while discharging the sludge from the filter body 30. do.

3 is a front view schematically showing the main components of the present invention.

Looking at the configuration of the blocking unit 40 of the present invention with reference to FIG. 3, the drive unit 41 and the power generated by the motor to generate power from the motor supplied with the power, the drive unit 41 receives the power to the rotary motion A barrier film for selectively blocking the wastewater inflow pipe 11 or the sludge discharge pipe 13 as it is coupled and rotated by the power transmission unit 42 for switching and the power transmission unit 42 and the white paper 44 ( 43).

In the wastewater treatment apparatus having the above configuration, when the filtration efficiency decreases due to the accumulation of sludge continuously in the filter body 30, the internal pressure of the treatment tank 10 is increased to generate a backflow of the wastewater. After confirming whether the backwater of the wastewater is returned from the backflow check unit 20, the blocking unit 40 is driven to block the wastewater inflow pipe 11 with the blocking membrane 43, thereby further treating the wastewater. The sludge discharge pipe 13 is opened while preventing the inflow into (10).

As such, when the wastewater inflow pipe 11 is blocked and the sludge discharge pipe 13 is opened, the treatment tank 10 is subjected to a reverse pressure with respect to the sludge discharge pipe 13, and thus the treated water is flowed backward to proceed as originally performed. The sludge was discharged to the sludge discharge pipe 13 through the filter cloth 32 in the opposite direction to the sludge discharge pipe 13, and the sludge stuck in the micropores while the treated water outside the filter cloth 32 passed inside as described above. It is to be discharged together while removing foreign substances including.

In the process of discharging sludge from the plurality of filter bodies 30 mounted in the treatment tank 10 as described above, the sludge discharge pipes 13 of all the filter bodies 30 mounted in the treatment tank 10 are simultaneously It is preferable to open the sludge discharge pipes 13 of the filter body 30 one by one without opening, so that sludge discharge occurs.

This is because when sludge discharge occurs simultaneously from a plurality of filter bodies 30 mounted in the treatment tank 10, the sludge cannot be effectively removed from the filter cloth 32 as the back pressure lowering the flow back of the treated water is lowered. Because. In addition, if the sludge discharge of the filter body 30 proceeds sequentially one by one, the filtration process and the washing process may be performed at the same time according to the filter medium, and thus the filtration process does not have to be stopped for washing the filter cloth.

In addition, although not shown in the drawing, the backflow check unit 20 of the above components of the wastewater treatment apparatus and a sensor capable of detecting in real time whether the wastewater flows back, and the pressure in the treatment tank 10 It is more preferable to selectively include a pressure gauge to display, a flow meter for measuring the flow velocity in the inflow pipe 11, and a control box for selectively operating the shutoff part 40.

In addition, one side of the treatment tank 10 is connected to the water amount control unit 50 containing a predetermined number of treatment water to maintain a constant amount of water in the treatment tank 10 to minimize the pressure change in the treatment tank (10) Let's do it.

As described above, the wastewater treatment apparatus checks the backflow of the wastewater generated by the accumulation of sludge on the filter cloth as described above, forms a reverse pressure in the treatment tank, and then generates the treatment tank by the reverse pressure. The main principle is to discharge the treated water back to the filter cloth from the sludge and sludge removed by the treated water to the outside.

This filtration process is carried out under a predetermined pressure set by the user, which is carried out in the treatment tank 10, when the internal pressure of the treatment tank 10 due to sludge accumulation of the filter cloth 32 is increased. When the inlet pipe 11 is blocked and the sludge discharge pipe 13 is opened, since the treatment tank 10 has a relatively very high pressure with respect to the sludge discharge pipe 13, the treated waters have a very high water pressure and filter cloth. As it passes through, the sludge caught in the micropores of the filter cloth can be effectively removed, and thus a very good cleaning efficiency can be obtained in a short time.

Therefore, the wastewater treatment apparatus of the present invention can remove sludge and solids from the filter cloth with a very good cleaning efficiency in a short time by using the sludge accumulated in the filter cloth due to the long time use, and therefore separate It is possible to reduce the overall installation cost because it is not equipped with a cleaning device, and not only does not require a large amount of water to reduce the operating and maintenance costs, but also the overall management and cleaning is required.

In addition, the present invention is because the filtration process of the waste water and the washing process of the filter cloth is carried out at the same time, the filtration process does not need to be interrupted due to the washing of the filter cloth, and because no separate washing device is installed in the treatment tank, Many filter media can be installed to increase the treatment capacity of wastewater.

As described above, the sludge treatment apparatus of the wastewater of the present invention uses the filter cloth to separate and remove the sludge contained in the wastewater from the filter cloth by using the pressure change of the treatment tank. Solids can be removed with very good cleaning efficiency in a short time, thus eliminating the need for a separate cleaning device, reducing the overall installation cost, and eliminating the need for a large amount of cleaning water, thereby reducing operating and maintenance costs. It is easy to manage and clean the whole process.

In addition, the present invention does not have to stop the filtration process due to the washing of the filter cloth because the filtration process of the waste water and the washing process of the filter cloth at the same time, there is no separate cleaning device, spray device, vibration device is installed in the treatment tank More filter media can be installed than the available area, which will increase the treatment capacity of the waste water.

Claims (4)

In the sludge treatment apparatus for physically separating and removing the sludge by passing the waste water through a filter cloth uniformly distributed micropores, The inlet pipe 11 flowing into the wastewater inlet, the conveying pipe 12 for transferring the filtered water to a post process, and the sludge discharge pipe 13 for discharging the separated sludge to the outside are provided. A treatment tank 10; A reverse flow check unit 20 installed at one side of the inflow pipe 11 to check whether the wastewater flows backward due to an increase in pressure in the treatment tank; It is mounted inside the treatment tank 10, the head portion 31 is connected to the waste water inlet pipe 11 and the sludge discharge pipe 13 is formed at the upper end, the filter cloth 32 at the lower end of the head portion 31 A plurality of filter bodies 30 surrounding the outer surface portion; Wastewater wastewater characterized in that it comprises a; blocking portion 40 for selectively blocking the wastewater inlet pipe 11 and the sludge discharge pipe 13 connected to the head portion 32 of the filter body 30 Processing unit. 2. The driving unit 41 of claim 1, wherein the blocking unit 40 receives power and generates power from the motor, and the power transmission unit 42 converts the driving unit 41 into a rotational movement by receiving the power of the driving unit 41. And a blocking film 43 selectively blocking the wastewater inflow pipe 11 or the sludge discharge pipe 13 as the power transmission unit 42 and the white paper 44 are rotated. Wastewater Treatment System The method according to claim 1 or 2, wherein the backflow check unit 20 is a sensor capable of detecting in real time whether the backwater of the waste water, a pressure gauge for displaying the pressure in the treatment tank 10, and the inlet pipe 11 Flow meter for measuring the flow rate within, the wastewater treatment apparatus, characterized in that it further comprises a control box for selectively operating the blocking portion (40). The wastewater treatment apparatus according to claim 3, wherein a water quantity adjusting unit (50) containing a predetermined amount of treated water is connected to one side of the treatment tank (10).