KR100290563B1 - Wastewater purification device using water pressure - Google Patents

Abstract

The present invention constitutes a rotating drum that rotates with no or minimum power in the tank so that the waste water is purified by causing vortices, so that the sedimentation of the sediment is made stable, the sewage movement is active, and the sewage concentration is kept constant, and oxygen supply is performed. This is smooth, and relates to a waste water purification device using water pressure that can minimize the installation or maintenance costs and noise.

Wastewater purification apparatus using the water pressure of the present invention, sedimentation separation tank (1), the first anaerobic tank (2), the second anaerobic tank (3), the first contact aeration tank (4), the second contact aeration tank (5), sedimentation tank ( In the wastewater purification device by anaerobic and aerobic contact rotation method, including 6),

Rotating drum (1), the first anaerobic tank (2), the second anaerobic tank (3), the first contact aeration tank (4), the rotating drum on one side of each tank to vortex the waste water (5) 20) is installed, the circular pressure receiving device 26 and the circular arc to approach the rotating drum 20 under one side of the rotating drum 20 so that the rotating drum 20 is rotated by the hydraulic force by the difference in the water pressure and the The diffuser 27 connected to the air generating device is installed on the hydraulic pressure preventing device 26.

Description

Wastewater purification device using water pressure

The present invention constitutes a rotating drum rotated by the pressure difference in the tank so that the sewage is purged while causing vortices, stable sedimentation of sediment is made, the sewage movement is active to maintain a constant sewage concentration, oxygen supply is The present invention relates to a wastewater purification device using water pressure that can be smoothly and minimizes installation and maintenance costs and noise.

In general, the water pollution of the soil, rivers, and water supplies that are being boosted comes from industrial wastes, industrial wastes, and livestock wastes.

These various wastewaters are not processed at the end-of-the-end treatment plant, but are tending to fundamentally solve water pollution of natural ecosystems, rivers, and lakes that are being destroyed by being cleaned and destroyed at the cause.

Some examples of conventional wastewater purification methods are the most common, generally treated water quality, standard activated sludge method that is highly adaptable to temperature, and maintains aeration time for more than 24 hours, and is adaptable to influent load fluctuations and long-term aeration. Long-term aeration method that produces less sludge and is relatively easy to operate due to the assetization of microorganisms by contact, Contact aeration method that processes organic materials using a large amount of microorganisms attached to the contact surface by filling contact material in aeration tank, buried in soil A capillary trench method that moves soil and wastewater to the trench's capillary to treat organic matter using soil microorganisms, and collects various wastewater and manure sewage together, decomposes them by anaerobic and aerobic bacteria, and then disinfects them with chlorine and then discharges them. And purification treatment methods.

These processes are generally purified, including screen tanks, sedimentation tanks, flow control tanks, aeration tanks, sedimentation tanks, and discharge tanks.

Referring to this in more detail based on Figure 1 as follows.

As shown in the figure, the treatment of wastewater based on biochemical treatment includes sedimentation separation tank (1), first anaerobic tank (2), second anaerobic tank (3), first contact aeration tank (4), and second contact. It includes an aeration tank (5), and the settling tank (6), the sedimentation separation tank (1) to the second anaerobic tank (3) is provided with a screw (8) rotating in the water in the water, the sedimentation separation tank ( 1) to the settling discharge tank (6) is provided with an air diffuser (10) to supply the air generated by the air generating device (9), the air lift 11 for pumping the sewage containing the settled organic matter is installed do.

By this configuration, first, the sedimentation treatment of sludge, such as solids, relatively large particles of contaminants or suspended matter contained in the influent sewage in the sedimentation separation tank (1).

Primary treatment water flowing from the sedimentation separation tank (1) flows into the first anaerobic tank (2) and the second anaerobic tank (3) and passes through an anaerobic mediator (not shown) containing an anaerobic microbial layer. Nitrogen inside is removed first and second.

The tertiary treated water flowing from the second anaerobic tank 3 is organic by the activity of the aerobic microorganism layer contained in the contact material (not shown) in the first contact aeration tank 4 and the second contact aeration tank 5. This is broken down.

At this time, the air generated from the air generating device 9 is supplied through the air diffuser 10 to supply oxygen in accordance with the growth environment of the aerobic microbial layer.

The fifth treatment water flowing from the second contact aeration tank (5) flows into the settling tank (6) and the organic matter in the treatment water is settled. At this time, the sewage containing the settled organic matter is pumped up using the air lift 11, and the other liquid phases rise to flow to the disinfection discharge tank (not shown).

By the way, such a conventional waste water purification device is difficult to transport and maintain a constant concentration or residence time of the sewage, do not maximize the anoxic conditions in the anaerobic tank, there is a closed end where the scum and sediment suspended solids stay in water, In the contact aeration tank, the supply of oxygen is not smooth, so there is a lack of dissolved oxygen, the complexity of installing a separate air generating device or air lift, there is a problem such as a lot of power required to operate it.

In addition, there is a problem that is limited to the application of limited sewage manure management, simple sewage treatment facilities, small and medium sized waste water treatment facilities.

The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to form a rotating drum rotating by the difference in water pressure in the tank so that the waste water is purified by causing vortices, stable sedimentation of the precipitate is Sewage concentration is kept constant by active sewage movement, oxygen supply is smooth, installation and maintenance cost and noise can be minimized, and wastewater purification device using water pressure is not limited to the application target. There is.

Wastewater purification apparatus using the water pressure of the present invention for achieving the above object is characterized in that each installed a rotating drum rotating in the sedimentation separation tank or contact aeration tank by using a hydraulic pressure or a minimum power.

1 is a schematic configuration diagram of a wastewater purification facility using a conventional anaerobic and aerobic contact rotation method,

Figure 2 is a front configuration diagram for explaining the overall configuration of the wastewater purification apparatus according to the present invention,

3 is a plan view of FIG.

Figure 4 is a side cross-sectional view of the installation state of the rotating drum according to the present invention,

5 is a cross-sectional view of FIG.

6 is a schematic view showing another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: sedimentation separation tank 2: first anaerobic tank

3: second anaerobic tank 4: first aeration tank

5: second contact aeration tank 6: settling tank

7: motor 8: screw

9: air generator 10: air diffuser

11: airlift 20: rotating drum

21: wing 21a: overload jaw

21b: Load Slope 22: Bearing

23: axis of rotation 24: support

25: stopper 26: hydraulic pressure protection

27: diffuser

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front configuration diagram for explaining the overall configuration of the device according to the invention, Figure 3 is a plan view of Figure 2, Figure 4 is a side cross-sectional view of the installation state of the rotating drum according to the present invention, FIG. 5 is a cross sectional view of FIG. 4.

As shown, the wastewater purification apparatus using the water pressure of the present invention, sedimentation separation tank (1), the first anaerobic tank (2), the second anaerobic tank (3), the first contact aeration tank (4), the second contact aeration tank (5) Each rotating drum 20 is installed.

The rotating drum 20 has a hollow portion formed therein to fill air or a buoyancy material filled in the hollow portion or the cylinder itself to have a buoy function, and a plurality of wings 21 are formed on the length of the outer circumferential surface thereof. The rotating shaft 23 is installed through both bearings 22, and the rotating shaft 23 is installed through the support 24.

The blades 21 are formed with an overloading jaw 21a and a load preventing diagonal line 21b to be inclined in one direction, and one of the blades 21 is provided with a stopper 25 for preventing reverse rotation.

In addition, one side of the rotating drum 20 is provided with an arc-shaped hydraulic pressure preventer 26 approaching the rotary drum 20, and the hydraulic pressure preventer 26 is provided with an diffuser 27.

In addition, the rotary drum 20 is installed on one side of each tank, is installed in the upper water in the sedimentation separation tank (1), in the first anaerobic tank (2) and the second anaerobic tank (3) is installed in the lower water, In the first contact aeration tank 4 and the second contact aeration tank 5 is installed in the upper water, but part is installed to be exposed to the outside from underwater.

The blade 21 determines the shape, structure and installation method in consideration of the physical force of the water pressure generated in the water and the nature of the waste water.

The effect of this invention of the said structure is demonstrated.

First, in the sedimentation separation tank (1), sludge such as solid matter, relatively large particles of contaminants, or suspended matter contained in the influent sewage is precipitated.

At this time, the rotary drum 20 installed in the upper water of the sedimentation separation tank 1 is started to rotate by the non-powered or diffuser 27.

Explaining the reason why the rotating drum 20 is rotated with no power or minimum power, the rotating drum 20 itself is a drum having a buoyancy structure, and when it is installed in water, a force to be floated by water pressure acts. On the drawing, the left side of the hydraulic pressure is strongly intensified while the right side of the hydraulic pressure is prevented by the hydraulic pressure 26, the aberration 20 is naturally rotated in the direction of the arrow due to the hydraulic pressure difference in both directions, or diffuser It is rotated by the action of bubbles generated in (27), or is rotated under the influence of the flow rate of the incoming wastewater.

When the rotating drum 20 starts to rotate with the above action, a winsimal force is generated to maintain an acceleration and continuous rotation.

When the rotating drum 20 is rotated, the sewage contained in the sedimentation separation tank 1 causes vortices or vortices to maximize the sewage movement area and to disperse the waterway in the tank, while at the same time, to collect contaminants or suspended matters. Sludge such as this precipitates out.

Next, the primary treatment water flowing from the sedimentation separation tank 1 flows into the first anaerobic tank 2 and the second anaerobic tank 3 and passes through the anaerobic mediator 30 including the anaerobic microbial layer. Nitrogen in the water is removed first and second.

At this time, the rotary drum 20 installed in the water below the first anaerobic tank 2 and the second anaerobic tank 3 is in a state of being rotated with no power or minimum power.

That is, the rotating drum 20 is a drum of buoyancy structure, when installed in the water acts to open by the hydraulic pressure, at this time, the direction in which the hydraulic pressure preventer 26 is not installed, the hydraulic pressure is strongly intensified In the direction in which the hydraulic pressure prevention device 26 is installed, the hydraulic pressure is insignificant, and the rotating drum 20 vortexes and circulates the sewage in the tank while rotating naturally by the hydraulic pressure difference in both directions, and at this time, the rotating drum 20 In the initial stage, the rotational force may be insignificant or impossible to rotate, but at this time, the rotation is enabled by bubbles generated by the diffuser 27 connected to the air generating device, and the flow force of the waste water Initial rotational power is planned.

When there is a rotation of the rotary drum 20, the waste water in the tank causes vortex to maximize the anaerobic condition of the first anaerobic tank (2) and the second anaerobic tank (3) for removing nitrogen or phosphorus.

That is, the first anaerobic tank (2) and the second anaerobic tank (3), which are anaerobic tanks, are intended to remove nitrogen or phosphorus rather than decomposition of BOD or COD. Therefore, when anoxic is incorrectly installed, the anaerobic tank may change into a settling tank. By rotating the rotary drum 20 at the bottom to vortex the sewage constantly, scum or floating material before sedimentation moves smoothly to the next treatment tank to maintain a constant concentration.

Meanwhile, the tertiary treated water flowing from the second anaerobic tank 3 is activated by the aerobic microorganism layer contained in the contact material 31 in the first contact aeration tank 4 and the second contact aeration tank 5. Organic matter decomposes.

At this time, the rotating drum 20 exposed in the upper water of the first anaerobic tank 2 and the second anaerobic tank 3 is in a state of being rotated with no or minimum power by the above-described action.

That is, the rotating drum 20 is a drum of buoyancy structure, when installed in the water acts to open by the hydraulic pressure, at this time, the direction in which the hydraulic pressure preventer 26 is not installed, the hydraulic pressure is strongly intensified In the direction in which the hydraulic pressure prevention device 26 is installed, the hydraulic pressure is insignificant, and the aberration 20 naturally vortex and flows in the tank while the aberration 20 naturally rotates due to the hydraulic pressure difference in both directions.

At this time, the rotating drum 20 is partially floated on the surface of the water, and the rotating drum 20 rotates to raise the sewage into the atmosphere, and the sewage being drawn up draws oxygen into the atmosphere, and also rises to the water level. As the surface moves oxygen in the air into the water, the sewage of the aerobic tank is greatly vortexed to facilitate the oxygen supply of the microorganisms in the aerobic tank, and the growth and reproduction of the microorganisms inhabiting the contact media 31 filled in the aerobic tank It is increased.

At this time, the air generated by the air generator 9 is supplied through the air diffuser 27 to help the propagation environment of the aerobic microorganism layer more suitably.

The fifth treatment water flowing from the second contact aeration tank (5) flows into the settling tank (6) and the organic matter in the treatment water is settled. At this time, the sewage containing the settled organic matter is pumped up using the air lift 11, and other liquid phases are raised to be discharged through a disinfection discharge tank (not shown).

FIG. 6 shows another embodiment of the present invention, in which the rotating drum 20 is applied to a large-scale end treatment plant, a dam, a river, a lake, a fish farm, a fish farm, a water purification plant, etc., where more dissolved oxygen is required in the water. .

As shown in the drawing, when rotating a plurality of rotating drums 20 without power, green algae, red tide, etc. can be prevented, and dissolved oxygen in the water can be more efficiently maintained.

As described above, the wastewater purification apparatus using the water pressure of the present invention has a sewage vortex by a configuration in which rotary drums are rotated with no or minimum power by using hydraulic pressure in the sedimentation separation tank or contact aeration tank, respectively. It is moved to purify and stabilize the sediment of sediment, the sewage movement is active, the sewage concentration is kept constant, oxygen supply is smooth, installation and maintenance cost and noise are minimized, and it is not restricted by the application. To exert its effect.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .

Claims (3)

Anaerobic, aerobic contact rotary method, including sedimentation separation tank (1), first anaerobic tank (2), second anaerobic tank (3), first contact aeration tank (4), second contact aeration tank (5), sedimentation tank (6) In the wastewater purification apparatus by Rotation drum on one side of each tank so that sewage of the sedimentation separation tank (1), the first anaerobic tank (2), the second anaerobic tank (3), the first contact aeration tank (4), the second contact aeration tank (5) vortex 20 is installed, the arc-shaped hydraulic pressure preventer 26 approaching the rotary drum 20 under one side of the rotary drum 20 so that the rotary drum 20 rotates with no or minimum power due to the difference in water pressure. And the diffuser 27 connected to the air generating device on the hydraulic pressure preventing device 26 is installed. According to claim 1, wherein the rotating drum 20 is a rotating drum formed so that the hollow portion is filled in the air or the buoyant material is filled in the hollow portion or the cylinder itself has a float function, a plurality of on the length of the outer peripheral surface Wing 21 is formed, the rotary shaft 23 is installed through both bearings 22, the rotary shaft 23 is installed through the support 24, the wastewater purification apparatus using water pressure. According to claim 1, wherein the rotating drum 20 is installed on one side of each tank, in the sedimentation tank (1) is installed in the upper water, in the first anaerobic tank (2) and the second anaerobic tank (3) in the lower water The first contact aeration tank (4) and the second contact aeration tank (5) is installed in the upper water, but the waste water purification device using the water pressure, characterized in that is installed so that a part is exposed to the outside from underwater.