KR200369118Y1 - Waster water recyclic apparatus by Attached microbe in Separated Aeration tank - Google Patents

Abstract

The present invention relates to a wastewater treatment apparatus using a detachable attachment microorganism method, and the wastewater passing through the anaerobic tank 10 and the flow adjusting tank 20 is removed from the first aeration tank 30 and then introduced into the first settling tank 40. And, it is configured to remove nitrogen and phosphorus again through a separate aeration tank 50 will be able to effectively remove nutrients such as nitrogen and phosphorus when waste water treatment.

In addition, by intermittently desorbing the microorganisms attached to the stationary phase contact medium 51 installed in the aeration tank to prevent excessive attachment of the microorganisms, by maximizing the activity of the outermost biofilm to maximize the activity of the attached microorganisms and the occurrence of excess sludge It is reduced.

Therefore, it is a very useful design that can increase the purification efficiency for purifying foreign matter in the water and the process is simple to improve the reliability and ease of operation of the product.

Description

Wastewater treatment apparatus using separated microbial method {Waster water recyclic apparatus by Attached microbe in Separated Aeration tank}

The present invention relates to a wastewater treatment apparatus using a detachable attachment microbial method, and more particularly, to remove organic substances and suspended solids using attachment microorganisms and to remove nutrients such as nitrogen and phosphorus.

In general, wastewater is discharged from flush toilets, baths, kitchens, etc., or mixed with liquid or solid waste from factories and livestock facilities. After discharge to below discharge standard, discharge should be done.

Therefore, in recent years, wastewater treatment devices have been installed to purify living sewage or wastewater generated in residential buildings or industrial facilities, etc., to purify them below emission allowances and discharge them.

This wastewater treatment apparatus usually uses a septic tank made of fiber reinforced plastic (FRP), which is a composite material containing glass fiber with excellent tensile strength in a synthetic resin having excellent water resistance, chemical resistance and heat resistance.

On the other hand, the small-scale wastewater treatment apparatus discharged from a home or an industrial facility as described above, and the flow control tank for primarily storing the introduced wastewater and to control the flow rate; An aeration tank provided with a contact medium for biologically treating the wastewater that has passed through the flow adjustment tank; A settling tank for precipitating suspended solids contained in the water passed through the aeration tank; It consists of a discharge tank which discharges the supernatant water isolate | separated from this sedimentation tank.

In other words, the waste water moves from the flow control tank to the aeration tank, aerated and purified while contacting the growing contact media with the medium, and precipitates the suspended solids in the settling tank to separate and discharge the supernatant.

However, the conventional wastewater treatment device is discharged immediately after the wastewater treated with microorganisms in the aeration tank is passed through the settling tank, mainly composed of a structure for the removal of organic and suspended solids, nitrogen and phosphorus to cause eutrophication of appeal and soft water There was a problem with the removal.

In addition, the activated sludge process using suspended microorganisms naturally precipitates the microbial floc in the sedimentation tank and returns it to the aeration tank to maintain the concentration of microorganisms in the aeration tank as high as desired. If not, it was difficult to keep the concentration of microorganisms in the reactor high enough as desired.

Therefore, it is difficult to properly process organic materials and suspended solids, and the sludge conveying device for conveying sludge is needed because the sludge conveying rate is controlled in the sedimentation tank, and there is a certain level of knowledge to maintain the appropriate amount of microorganisms. There was a problem that a driver or a manager needed.

That is, the conventional small-scale wastewater treatment apparatus described above has a closed end that is difficult to obtain stable treatment efficiency due to the complexity of operation of nitrogen, phosphorus, and removal and fluctuation of inflow load, and has a limitation in removal.

The purpose of the present invention is to separate the aeration tank equipped with contact medium with adherent microorganisms, and to set up a sedimentation tank between the separated aeration tanks, the waste water is contacted and oxidized to the microorganisms in the aeration tank, and the sedimentation in the sedimentation tank is repeated. The present invention provides a wastewater treatment apparatus using a detachable attached microbial method that can effectively treat nitric acid and phosphorus contained in wastewater by maximally activating a biofilm of adherent microorganisms by releasing microorganisms attached to them.

1 is a cross-sectional view showing the configuration of the present invention.

Figure 2 is a perspective view showing a stationary contact medium installed in the first aeration tank and the detachable aeration tank of the present invention.

Figure 3 is a plan view showing a detachment apparatus installed in the first aeration tank and the detachable aeration tank of the present invention.

* Description of the major symbols in the drawings *

1-Purification Tank 10-

11-Liquid Contact Media 20-Flow Adjustment Tank

30-First Abandonment 31-First Fixed-phase Contact Media

32-first desorber 40-first sedimentation tank

50-Separate Aeration Tank 51-Stationary Contact Media

52-Tally Device 53-Second Abandonment

54-Third Aeration Tank 60-Second Settling Tank

70-Concentrated Storage Tank 80-First Sludge Conveyer

81-Second sludge conveying device 82-Third sludge conveying device

83-Climbing Water Transfer

The purpose of the present invention is the anaerobic tank (10) equipped with a fluidized bed contact medium (11) to remove the organic matter is attached to the waste water to precipitate sludge, the water is floated to separate, attached to the anaerobic microorganisms;

A wastewater adjusting tank 20 for adjusting the flow rate of the wastewater which has passed through the anaerobic tank 10 to be finely decomposed and discharged;

Waste water flowing through the flow adjusting tank 20 is introduced, the first fixed-phase contact medium 31 to which microorganisms are attached, and the first aeration tank 30 including a first desorption device 32 for blowing air therein. Wow;

A first sedimentation tank 40 for purifying the wastewater purified through the first aeration tank 30 to precipitate sludge and separating the supernatant water;

The separated supernatant tank 50 is introduced into the first supernatant separated from the first settling tank 40, and a fixed bed contact medium 51 to which microorganisms are attached, and a desorption apparatus for blowing air scattering air therein;

A second precipitation tank (60) for solid-liquid separation of some desludge sludge of the fixed biofilm by introducing supernatant treated in the separation-type aeration tank (50);

A concentrated storage tank (70) for transporting the sludge precipitated in association with the second precipitation tank (60) and the anaerobic tank (10) to separate and concentrate the sediment water;

A first sludge conveying device (80) for transferring the sludge precipitated in the anaerobic tank (10) to a concentrated storage tank (70);

A second sludge conveying device (81) for transferring the sludge precipitated in the first settling tank (40) to a concentrated storage tank (70);

A third sludge conveying device (82) for transferring the sludge precipitated in the second settling tank (60) to the first aeration tank (30);

It is achieved by consisting of a rise water conveying device 83 for transferring the rise water separated from the concentrated storage tank 70 to the flow rate adjusting tank 20.

That is, waste water is treated in multiple stages while passing through the first aeration tank 30, the separate aeration tank 50, and the first and second sedimentation tanks 40 and 60, and the purification efficiency is high, and the withdrawal of the sludge is the first sedimentation tank 40. By performing in to prevent the excessive attachment of microorganisms to the stationary contact medium 51, the activity of the microorganisms is maximized, it is possible to minimize the occurrence of excess sludge.

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

1 is a cross-sectional view showing the configuration of the present invention, showing that the anaerobic tank, the flow regulating tank, the first aeration tank, the separate aeration tank, the first and second precipitation tanks, the concentrated storage tank is divided into partitions in one purification tank.

Figure 2 is a perspective view showing a fixed phase contact medium installed in the first aeration tank and the detachable aeration tank of the present invention, showing that the unit medium consisting of a single wire to the main rope is installed.

Figure 3 is a plan view showing a detachment device installed in the first aeration tank and the separation type aeration tank of the present invention, it is shown that composed of a combination of the ejection pipe formed with a plurality of bubble injection port.

Hereinafter, as shown in FIG. 1, a purification tank 1 of a small wastewater treatment apparatus installed in an apartment complex or a building itself has a storage unit for storing a predetermined amount of wastewater therein, and an inlet pipe for introducing wastewater into the storage unit ( 1a) and a discharge pipe 1b for discharging the introduced wastewater.

The storage section of the purification tank 1 is divided into partitions 2, respectively, so that the anaerobic tank 10, the flow regulating tank 20, the first aeration tank 30, the first sedimentation tank 40, the separate aeration tank 50, and the second The settling tank 60 and the concentrated storage tank 70 are sequentially formed.

The purification tank 1 is made of fiber-reinforced plastics (FRP) having a low specific gravity and excellent strength and corrosion resistance.

Waste water flowing from the inlet pipe (1a) is primarily introduced into the anaerobic tank (10), the screen tank is installed between the anaerobic tank (10) and the inlet pipe (1a) screen plate (3a) formed with a number of fine gaps ( 3) is provided.

That is, the wastewater introduced into the anaerobic tank 10 through the inlet pipe 1a is once filtered through the screen plate 3a of the screen tank 3 so that coarse material such as suspended matter or hair is filtered out.

In addition, it is preferable that the screen plate 3a of the screen tank 3 is mounted at an inclined angle at a predetermined angle to increase the contact area with the waste water so as to increase the efficiency of filtering the coarse material contained in the waste water.

On the other hand, the waste water from which coarse material is removed through the screen tank 3 is introduced into the anaerobic tank 10, and the anaerobic microorganism is provided with a fluidized bed contact medium 11 to which the anaerobic microorganisms are attached to the anaerobic microorganisms. The organic material is removed, and a portion of the sludge is precipitated and transferred to the concentrated storage tank 70 through the first sludge conveying apparatus 80.

The wastewater that passed through the anaerobic tank 10 is introduced into the flow adjusting tank 20 and stays for a predetermined time. The flow adjusting tank 20 finely decomposes the organic material of the introduced wastewater and adjusts the flow rate of the first aeration tank 30. To be discharged.

The first aeration tank 30 is provided with a first fixed-phase contact medium 31, in which microorganisms are attached to form a biofilm, and a first air blowing air in the lower portion of the first fixed-phase contact medium 31. A detaching device 32 is provided.

The first desorption apparatus 32 blows air into the first aeration tank 30 to contact air and water to oxidize waste water, and simultaneously attaches microorganisms to the first stationary contact medium 31 to form a biofilm. Allows removal of organic matter

In addition, the first desorption apparatus 32 normally performs contact oxidation as described above when air is injected at a weak pressure, and microorganisms are excessively excessive in the first stationary contact medium 31 after a predetermined time after operation. When the biofilm is attached and clogged, the air is blown at a high pressure to desorb microorganisms.

And the waste water discharged from the first aeration tank 30 is introduced into the first settling tank 40 to precipitate the sludge in the first settling tank 40, is separated into the supernatant.

The sludge separated from the first sedimentation tank 40 is transferred to the concentrated storage tank 70 by the second sludge conveying apparatus 81, and the supernatant water flows into the separation type aeration tank 50, which cannot be removed from the first aeration tank 30. Eliminate nutrients such as nitrogen and phosphorus.

The separation type aeration tank 50 has a second fixed bed contact medium 53a to which the supernatant separated from the first settling tank 40 is introduced, to which microorganisms are attached, and blows air into the second desorption device 53b. A second aeration tank 53 including);

The third aeration tank including a third desorption device 54b to which the supernatant treated by the second aeration tank 53 flows in, a third fixed phase contact medium 54a to which microorganisms are attached, and blows air into the inside 54).

That is, in the first aeration tank 30, organic substances are mainly removed by microorganisms attached to the first stationary contact medium 31, and nutrients such as nitrogen and phosphorus, which are not removed in the first aeration tank 30, are removed. The second aeration tank 53 and the third aeration tank 54 are removed from the anaerobic tank 10 in the biofilm of the second and third fixed-phase contact media.

In addition, the second and third desorption apparatus (53b, 54b) is the same as the first desorption device (32) when the normal air is injected at a weak pressure as described above, the oxidation as described above, if a certain time after operation When the microbial is excessively attached to the first stationary contact medium 31, the biofilm is clogged. In this case, the air is blown at a high pressure to desorb the microorganism.

Meanwhile, as shown in FIG. 2, the first, second, and third fixed-phase contact media 31, 53a, and 54a are fixed to each aeration tank with unit media 90 made of thin single wires having a diameter of 0.1 mm or less. It is configured to be fixed to the main rope 91, which is proposed in the patent application No. 0327126 filed for the microbial habitat for wastewater treatment filed by the applicant and is included in the configuration of the present invention.

In addition, the first, second, third desorption apparatus (32, 53b, 54b) is composed of a combination of the ejection pipe 93 is provided with a plurality of bubble injection port 92, as shown in Figure 3, 92) activates the biofilm of the microorganisms by contact oxidation or desorption depending on the intensity and amount of the air injected from the air, or the microorganisms excessively attached to the first, second, and third fixed-phase contact media (31, 53a, 54a). Tally.

The supernatant treated in the third aeration tank 54 is introduced into the second settling tank 60 to solidify and separate some desorption sludge of the fixed biofilm, and the final separated supernatant is discharged and discharged through the discharge pipe 1b. The sludge is conveyed to the first settling tank 40 through the third sludge conveying apparatus 82.

That is, withdrawal of excess sludge is carried out in the first settling tank 40, thereby culturing complete adherent microorganisms in the aeration tank, and intermittently detaching the microorganisms excessively attached to the stationary bed contact medium 51 by the desorption device 52 to fix the bed contact. By maximizing the activity of the biofilm of the filter medium 51 and periodically detaching and discarding the good outermost microorganism, the induction of biological phosphorus in the biofilm formation process can remove nutrients such as nitrogen and phosphorus contained in the wastewater. will be.

On the other hand, the sludge precipitated in the anaerobic tank 10, the first settling tank 40 is transferred to and stored in the concentrated storage tank 70 through the first and second sludge conveying apparatus (80, 81), respectively, the concentrated storage tank 70 The sludge stored in the sludge is transferred to the flow rate adjusting tank 20 through the sludge conveying device 83.

Although the first, second and third sludge conveying apparatuses 80, 81 and 82 and the flow rate adjusting tank 20 are not shown, the pipes connecting the tanks and the conveying pump for transporting the sludge and the rising water through the pipes are not shown. It consists of, the waste water passing through the anaerobic tank 10 and the flow control tank 20, the first aeration tank 30, the first settling tank 40, the separate type aeration tank 50, the second settling tank 60 partitioned into partitions (2) It is noted that the transfer of is achieved by using water level difference.

According to the above constitution of the present invention, it is composed of a first aeration tank for removing organic substances and a separate aeration tank for removing nitrogen and phosphorus, and a first precipitation tank is provided therebetween to provide nutrition such as nitrogen and phosphorus during wastewater treatment. Salt can be effectively and simply removed.

In addition, by intermittently detaching the microorganisms attached to the fixed-phase contact medium installed in the aeration tank to prevent excessive attachment of the microorganisms, to maximize the activity of the attached microorganisms by maintaining the outermost biofilm with good activity is to reduce the occurrence of excess sludge .

Therefore, it is a very useful design that can increase the purification efficiency for purifying foreign matter in the water and the process is simple to improve the reliability and ease of operation of the product.

Claims (3)

An anaerobic tank (10) equipped with a fluidized bed contact medium (11) in which wastewater is introduced to precipitate sludge, water is floated, separated, and anaerobic microorganisms are attached to remove organic materials; A wastewater adjusting tank 20 for adjusting the flow rate of the wastewater which has passed through the anaerobic tank 10 to be finely decomposed and discharged; Waste water flowing through the flow adjusting tank 20 is introduced, the first fixed-phase contact medium 31 to which microorganisms are attached, and the first aeration tank 30 including a first desorption device 32 for blowing air therein. Wow; A first sedimentation tank 40 for purifying the wastewater purified through the first aeration tank 30 to precipitate sludge and separating the supernatant water; The separated supernatant tank 50 is introduced into the first supernatant separated from the first settling tank 40, and a fixed bed contact medium 51 to which microorganisms are attached, and a desorption apparatus for blowing air scattering air therein; A second precipitation tank (60) for solid-liquid separation of some desludge sludge of the fixed biofilm by introducing supernatant treated in the separation-type aeration tank (50); A concentrated storage tank (70) for transporting the sludge precipitated in association with the second precipitation tank (60) and the anaerobic tank (10) to separate and concentrate the sediment water; A first sludge conveying device (80) for transferring the sludge precipitated in the anaerobic tank (10) to a concentrated storage tank (70); A second sludge conveying device (81) for transferring the sludge precipitated in the first settling tank (40) to a concentrated storage tank (70); A third sludge conveying device (82) for transferring the sludge precipitated in the second settling tank (60) to the first aeration tank (30); Wastewater treatment apparatus using a detachable attached microbial method, characterized in that consisting of a rising water conveying device (83) for transferring the rising water separated from the concentrated storage tank (70) to the flow adjustment tank (20). The method according to claim 1, wherein the anaerobic tank 10, the flow adjustment tank 20, the first aeration tank 30, the first settling tank 40, the separate type aeration tank 50, the second settling tank 60, the concentrated storage tank 70 Waste water treatment apparatus using a separate attachment microbial method, characterized in that formed in one purification tank (1) partitioned by partitions (2) sequentially. The method of claim 1 or claim 2, wherein the separation-type aeration tank 50 is the supernatant separated from the first settling tank 40 is introduced, the second fixed-phase contact medium (53a) is attached to the microorganism is attached, the air inside A second aeration tank 53 including a second desorption apparatus 53b for blowing; The third aeration tank including a third desorption device 54b to which the supernatant treated by the second aeration tank 53 flows in, a third fixed phase contact medium 54a to which microorganisms are attached, and blows air into the inside Wastewater treatment apparatus using a detachable attached microbial method, characterized in that consisting of 54).