KR200283011Y1 - Precipitator for sewage and wastewater treatment facilities - Google Patents

Abstract

The present invention relates to a sedimentation tank for sewage and wastewater treatment apparatus, which allows sludge to be separated within a short time in the process of discharging supernatant after retaining the treated water introduced into the sedimentation tank and discharging only purified water to the outside. The purpose of the present invention is to improve the wastewater treatment efficiency and to cope with load fluctuations naturally. In order to achieve the above object, the present invention provides a treatment tank for treating purified water in a sedimentation tank for wastewater treatment system. The treatment water transport pipe 311 to be transferred, the central pipe 312 is connected to the treatment water transport pipe 311 and formed in the center of the inclined bottom surface, the sludge drawing pipe 314 is formed on one side A main body 31 having a hopper 313 and a discharge pipe 315 for discharging the purified symbolic water; A filtration layer 32 fixed to the circumference of the center tube 312 by a plurality of supports 323, through which the treated water introduced into the center tube 312 passes upwardly; Provided is a sedimentation tank for sewage and wastewater treatment apparatus, characterized by having a sludge scraper for collecting sludge settled on the bottom surface in a hopper 313.

Description

Precipitator for sewage and wastewater treatment facilities

The present invention relates to a sedimentation tank for sewage and wastewater treatment apparatus. More specifically, the sedimentation tank used for sewage and wastewater treatment apparatus for treating domestic sewage and industrial wastewater is improved to improve the purification treatment efficiency and to remove phosphorus. The present invention relates to a sedimentation tank for sewage and wastewater treatment equipment which is provided to increase the purification treatment efficiency.

In recent years, due to the rapid development of the industry and population increase, water pollution is very serious. The main culprit of the water pollution is nutrients such as nitrogen and phosphorus including organic substances contained in the wastewater and wastewater. In particular, as the inflow of nutrients into rivers and lakes is greatly increased, the water supply is rapidly polluted, and accordingly, there is a demand for developing technologies for treating nutrients present in wastewater and wastewater and strengthening emission regulations.

There are known physical, biological, and chemical treatment methods for treating organic matter, nutrients such as nitrogen and phosphorus in wastewater. Currently, most wastewater is treated using biological treatment. .

A catalytic oxidation method is known as a biological treatment method. The catalytic oxidation method is a method of treating waste water by aeration of a carrier having a microorganism fixed therein in an aeration tank.

1 shows a schematic diagram of a wastewater treatment system using a catalytic oxidation method, which is generally used in the related art. As illustrated, the wastewater treatment apparatus includes a flow rate adjusting tank 110 in which a wastewater inflow pipe 111 is formed. ; An aeration tank 120 having a wastewater transport pipe 121 connected to the flow rate adjustment tank 110, an acid pipe 122 for aeration of the wastewater at the bottom, and a contact material 123 to which microorganisms are fixed; Sedimentation tank 130 having a treatment water transfer pipe 131 connected to the aeration tank 120, and a discharge pipe 132 to settle the sludge by holding the treated water transferred through the treatment water transfer pipe 131 to discharge only the symbol water to the outside ); And a sludge drawing pipe 141 for drawing sludge precipitated in the settling tank 130, a sludge conveying pipe 142 for conveying a part of the drawn sludge to the aeration tank 120, and the remaining amount of sludge is in a sludge concentration tank. Sludge storage tank 140 to transport and discard.

The wastewater treatment apparatus having such a configuration transfers the wastewater collected in the relay pumping station or the sump to the flow regulating tank 110 through the wastewater inflow pipe 111, and the ㆍ The waste water is transferred to the aeration tank 120 in which the carrier 123 is embedded through the waste and waste water transport pipe 121, and then aerated and purified by the microorganisms attached to the contact material 123, and the treated water is aerated. To the sedimentation tank 130 to precipitate the sludge contained in the treated water, and then a portion of the precipitated sludge is returned to the aeration tank 120 through the sludge conveying pipe 142, a part to the sludge storage tank 140 Transfer and discard, the symbol water is discharged through the discharge pipe (132).

At this time, the sedimentation tank for a conventional sewage and wastewater treatment apparatus including the sedimentation tank shown in FIG. The symbol water is discharged to the outside through the discharge pipe.

However, the conventional sedimentation tank having such a structure has a problem that a large amount of sludge is discharged together in the process of discharging the symbolic water because the separated surface of the precipitated sludge and the symbolic water is not clear. In addition, to settle the sludge contained in the treated water introduced into the sedimentation tank has a disadvantage that it is difficult to easily cope with the load fluctuation because the treated water must be retained for a long time.

The present invention is to solve the above-mentioned problems, to maintain the treated water introduced into the sedimentation tank to settle the sludge, and then to separate the sludge in the process of discharging the supernatant water at the same time, only the purified water to the outside The purpose of the present invention is to provide a sedimentation tank for sewage / wastewater treatment devices that can be discharged to increase the efficiency of wastewater / wastewater treatment and to cope with load fluctuations naturally.

1 is a schematic diagram of a wastewater treatment system by a general microbial catalytic oxidation method.

Figure 2 is a cross-sectional view of the settling tank according to an embodiment of the present invention.

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

30: sedimentation tank

31: main body

311: treatment water transport pipe 312: central pipe

313: hopper 314: sludge drawing pipe

315: discharge pipe

32: filtration layer

321: filter medium 322: filter sand

323 support

33: scraper

The present invention to achieve the above object is

In sedimentation tank for sewage and wastewater treatment apparatus,

A treatment water transport pipe for transporting the treated water, a central pipe connected to the treatment water transport pipe, a hopper formed at the center of the inclined bottom surface, and a sludge drawing pipe formed at one side thereof, and a discharge pipe for discharging the symbolic water. A main body having a;

A filtration layer fixed by a plurality of supports at the periphery of the central tube, through which the treated water introduced into the central tube passes upwardly; And

Provided is a sedimentation tank for sewage and wastewater treatment apparatus comprising a scraper for collecting sludge settled on the bottom surface in a hopper.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited thereto.

2 is a view showing a settling tank according to an embodiment of the present invention, the settling tank 30 according to the present invention as shown is largely the main body 31; Filtration layer 32; And the scraper 33.

The main body 31 is formed in the center of the treatment water transfer pipe 311 for transferring the treatment water, the central pipe 312 is connected to the treatment water transfer pipe 311, the treatment water flows, and the inclined bottom surface, It has a hopper 313 formed with a sludge drawing pipe 314 on one side, and a discharge pipe 315 for discharging the supernatant.

The treated water treated in the conventional aeration tank is introduced into the central tube 312 through the treated water transfer pipe 311, and the treated water introduced into the central tube 312 flows outward through the lower end of the central tube 312. In the process, the sludge contained in the treated water proceeds.

Some of the sludge is deposited on the inclined bottom surface, and some is deposited in the central hopper 313. The sludge deposited and accumulated in the hopper 313 is discharged to the outside through the sludge drawing pipe 314. In general, the sludge is transferred to a sludge storage tank and disposed of through a separate sludge treatment process.

In addition, the main body 31 is formed with a discharge pipe 315 for discharging the purified treated water to the outside, the treated water is discharged to the stream as it is through the discharge pipe 315 or discharged to the stream through a separate disinfection process. .

According to the present invention, the filtration layer 32 is fixed by a plurality of supports 323 around the center tube 312 of the main body 31, and the treated water introduced into the center tube 312 passes upwardly. .

The filtration layer 32 is formed by stacking a plurality of filter mediums 321 and filter yarns 322 having various sizes of through holes, and are provided on a plurality of supports 323 formed in the central tube 312 and the main body 31. It is fixed to the periphery of the central tube 312 by.

At this time, the treated water introduced into the central tube 312 is passed through the lower end to the outside and passes through the filtration layer 32 in an upward flow, during which the sludge contained in the treated water is filtered. Therefore, the sedimentation tank 30 according to the present invention can separate the sludge contained in the treated water introduced in a short time and has the advantage of enabling the discharge of purified water purified within a short time.

In the conventional wastewater treatment system, a separate phosphorus removal system is not provided, and thus phosphorus removal efficiency is very low. In the present invention, a phosphorus adsorbent is incorporated into the filter medium 321 of the filter layer 32 for the purpose of increasing phosphorus removal efficiency. Used together.

That is, the filtration layer 32 according to the present invention has a plurality of filter media 321 having a phosphorus adsorbent built in the bottom as shown, and has a 1 mm through hole on the upper of the filter medium 321 with the adsorbent embedded therein. The filter yarn 322 was laminated.

When the treated water transferred to the central tube 312 is pushed downward and naturally passes through the filtration layer 32 having the above structure in an upward flow, phosphorus contained in the treated water is adsorbed and removed by the filtration layer 32. As a result, the removal efficiency of phosphorus is increased.

As described above, the sludge contained in the treated water is filtered and precipitated in the course of passing the treated water transferred to the central pipe 312 through the filter bed in an upstream flow, in which part of the sludge is precipitated on the inclined bottom surface. Some precipitate in the central hopper 313.

According to the present invention, the sludge scraper 33 is installed to remove the sludge deposited on the bottom surface. In the present invention, a centrally driven sludge scraper 33 is used.

The scraper 33 can be easily installed by those skilled in the art to which the present invention pertains, so a detailed description of the structure and operation relations will be omitted.

When the scraper 33 is driven, the sludge accumulated and accumulated on the bottom surface is scraped, and the collected sludge is transferred to the hopper 313 formed on the bottom surface. The sludge accumulated in the hopper 313 is discharged to the outside through the sludge drawing pipe 314 as described above.

As described above, the present invention makes it possible to separate the sludge contained in the treated water within a short time and to discharge only the purified water to the outside, thereby improving the treatment efficiency and coping with load fluctuations naturally. It is a useful design to provide a settling tank for the device.

In addition, the present invention has a useful effect of providing a sedimentation tank for the waste water treatment apparatus to increase the phosphorus removal efficiency by adding a function of phosphorus removal in addition to the function of separating the sludge and purified water by retaining the treated water introduced into the sedimentation tank.

Although the present invention has been described with reference to one embodiment of the illustrated drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined only by the claims.

Claims (2)

In sedimentation tank for sewage and wastewater treatment apparatus, A treatment water transport pipe 311 for transporting the treated water which has been purified, and a central pipe 312 connected to the treatment water transport pipe 311 and formed at the center of the inclined bottom surface, and being sludged to one side A main body 31 having a hopper 313 having a foot pipe 314 formed therein and a discharge pipe 315 for discharging the purified symbolic water; A filtration layer 32 fixed to the circumference of the center tube 312 by a plurality of supports 323, through which the treated water introduced into the center tube 312 passes upwardly; A sedimentation tank for sewage and wastewater treatment apparatus, characterized by having a sludge scraper for collecting sludge settled on the bottom surface in a hopper 313. The method of claim 1, wherein the filter layer 32 has a structure in which a plurality of filter media 321 incorporating a sorbent is laminated, and a filter thread 322 having a 1 mm through hole is stacked on the filter media 321. Sedimentation tank for sewage and wastewater treatment apparatus, characterized in that.