KR100408484B1 - Treatment Equipment of Wastewater - Google Patents

Abstract

It is an object of the present invention in the wastewater treatment apparatus having a width pipe as the concentration of the flocculant concentrated in the bubble rising vertically in the water is made by agitation by bubbles to facilitate the aggregation and improve the purification efficiency more wastewater treatment apparatus In providing.

Accordingly, the present invention provides a wastewater treatment apparatus including a treatment tank into which wastewater is introduced, and an aeration pipe installed inside the treatment tank and generating an air bubble to aeration the wastewater. This installation provides a wastewater treatment apparatus, characterized in that the flocculant can be continuously introduced into the liquid to be aerated by the air disperser.

Description

Wastewater Treatment Equipment {Treatment Equipment of Wastewater}

The present invention relates to a wastewater treatment apparatus using an aeration pipe, and more particularly, to a wastewater treatment apparatus which simplifies the wastewater treatment process and improves treatment efficiency by performing aeration treatment and a chemical flocculation treatment with a flocculant.

In general, polymer flocculants have been used to remove impurities in water, particularly colloidal components, for sewage wastewater treatment or water purification.

That is, the amount of flocculant after obtaining optimum conditions by a tester for agglutination of the polymer flocculant as a means for removing colloid-sized substances such as turbidity, natural coloring components, viruses, bacteria, algae, etc. And a flocculant and an impurity are well combined to form a floc, to precipitate, and to discharge or use supernatant water.

In addition, in the past, flocculation and sedimentation operations were introduced in one device, and agglomeration and sedimentation batteries which simultaneously perform both of them within a total residence time of about 1 hour have been widely used. It is difficult to adapt properly when necessary or when depositing, and there is an operational problem such as decisively inoperable when the amount of treatment is increased to a certain level or more.

Generally, the type of flocculant is divided into powder and liquid phase. In either case, the method of the flocculant is reacted in the flocculation tank and undergoes rapid flocculation, floc formation, precipitation and filtration. Since the process up to complex and the mixing of the waste water and the flocculant in the flocculation tank depends only on the stirring itself, there is a problem that it is difficult to expect a uniform water purification.

Accordingly, the present invention has been made to solve the above-mentioned problems, in the wastewater treatment apparatus having a width pipe to facilitate the coagulation by agitation by the bubble as the concentration of the flocculant concentrated in the bubble rising vertically in the water It is an object of the present invention to provide a waste water treatment apparatus that can improve the purification efficiency.

In addition, the present invention can increase the cohesive force by the cross-linking action of the bubble interface itself at the same time as the vertical rise of the bubble, the rapid stirring occurs when the bubble rises vertically, and the slow stirring takes place when moving to the settling tank and efficient floc formation and It is an object of the present invention to provide a wastewater treatment apparatus capable of smooth continuous flocculation.

1 is a side view showing a single wastewater treatment apparatus according to an embodiment of the present invention,

2 is a view showing a state in which a plurality of wastewater treatment apparatus according to the present invention is connected to form a treatment facility.

Explanation of symbols on the main parts of the drawings

10: treatment tank 11: raw wastewater supply pipe

20: width pipe 21: air disperser

22: inlet hole 23: air supply pipe

24: blower 30: connector

40: coagulant tank 41: input pipe

42: injection pipe 43: fixed-quantity supply valve

50,60: sedimentation tank 51,61: diaphragm

53,63: Distribution channel 62: Upper water discharge pipe

70: sludge discharge pipe 71: solenoid valve

The present invention for achieving the object as described above, in the wastewater treatment apparatus including an aeration pipe is provided with an air disperser for generating bubbles, aeration treatment for the waste water, a flocculant inlet pipe is installed inside the aeration pipe air disperser It is characterized in that the flocculant can be continuously added to the processing liquid to be aerated.

In addition, the present invention is a structure in which the width pipe is extended to the upper surface of the treatment tank connected to the sedimentation tank via the connecting pipe, the rapid stirring is performed according to the vertical rise of the bubble up to the water surface, the connecting pipe from the water surface to the top It is characterized by that slow stirring occurs.

In addition, according to the present invention, a single width pipe is connected in series or in parallel to allow proper treatment according to the inflow of waste water.

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

1 is a side view showing a single wastewater treatment apparatus according to an embodiment of the present invention, Figure 2 is a view showing a state in which a plurality of wastewater treatment apparatus according to the invention is connected to form a treatment facility.

According to the above drawings, the present invention, the treatment tank 10 for receiving the waste water to be treated, the aeration portion for generating bubbles in the waste water of the treatment tank 10, the flocculant input for injecting a flocculant into the aerated waste water And settling tanks 50 and 60 for settling the flocculated floc.

The treatment tank 10 has a raw waste water supply pipe 11 for introducing the raw waste water into the treatment tank 10 in the side or the top, a pump (not shown) is installed on one side of the raw waste water supply pipe 11 It is designed to supply raw waste water.

The aeration part is installed vertically in the treatment tank 10, the lower end of the tube 20 is formed with an inlet hole 22 in which waste water flows into the side, and is installed on the bottom of the tube 20, the air into the tube 20 Air disperser 21 for dispersing the bubbles to generate bubbles.

The air disperser 21 is for dispersing air into bubbles, and is connected to the air supply pipe 23 outside the treatment tank 10 through the bottom of the width pipe 20 to receive air.

Reference numeral 24 denotes a blower connected to the air supply pipe 23 to generate air.

In addition, the upper portion of the width pipe 20 is formed to extend to the upper surface of the water treatment tank 10, is connected horizontally through the connecting pipe 30 is connected to the settling tank 50.

The coagulant inlet unit is located outside the treatment tank 10 and includes a coagulant tank 40 in which the coagulant is contained, and an inlet tube 41 and an inlet pipe 41 connected to the coagulant tank 40 and extending into the treatment tank 10. The coagulant injection pipe 42 and the inlet pipe 41 which are connected to the lower end and penetrate the outside of the width pipe 20 and are positioned on the air disperser 21 inside the pipe 20, and the inlet pipe 41. And a fixed-quantity supply valve 43 for adjusting the amount of flocculant introduced through the inlet.

Here, the injection pipe 42 is directed toward the air disperser 21 toward the air disperser 21 from the upper part of the air disperser 21, so that the flocculant can be directly injected to the bubbles arising from the air disperser 21.

The flocculant can be used in the form of powder or liquid according to the type and property of the wastewater, and can be added by uniformly adjusting the amount determined by the jar test through the metering supply valve 43. Agglomeration aids can be added to adjust the pH of the solution to neutral or to exert a high degree of cohesion.

On the other hand, the sedimentation tank (50, 60) is a sedimentation treatment by receiving the flocculated treated water through the connection pipe 30 connected to the upper pipe 20, sedimentation tank (50, 60) inside the diaphragm ( 51, 61 are installed and divided into the treated water inlet and the treated water outlet, and the lower part of the diaphragm 51, 61 has a bottom of the settling tank (50,60) and a distribution channel (53,63) at a predetermined interval so that the treated water can be distributed. Has a structure that makes up.

Therefore, once treated water in the pipe 20, the treated water flows into the inlet of the settling tank (50, 60) divided by the diaphragm (51, 61) to the outlet only through the flow path of the bottom of the settling tank (50,60) Because it is going out, the treated water introduced through the connecting pipe 30 can be immediately prevented from being discharged from the settling tank (50, 60), it is possible to further increase the settling efficiency.

In addition, the sludge discharge pipe 70 for discharging the deposited sludge is connected to the lower end of the settling tank (50, 60), the solenoid valve 71 for opening and closing the discharge pipe 70 is installed on one side of the sludge discharge pipe (70). .

In order to discharge the sludge smoothly, the lower ends of the settling tanks 50 and 60 are preferably configured to be inclined downward toward the discharge pipe 70.

Here, according to the embodiment of the present invention, a plurality of the settling tanks 50 and 60 are arranged in series (for the convenience of the following description, the first settling tank 50 and the second settling tank 60 along the flow direction of the waste water). Each of the settling tank (50, 60) has the same structure, the outlet of the settling tank 50 and the upper portion of the inlet of the next settling tank (60) is connected to the distribution pipe 52 through which the treated water flow is installed, each treated water Can pass through the settling tank sequentially.

The discharge section of the final settling tank 60 is installed with a supernatant discharge pipe 62 for discharging the supernatant.

Meanwhile, according to another embodiment of the present invention, at least two or more width pipes 20 may be arranged in parallel. 2 is a view showing processing equipment in a state in which a plurality of width pipes 20 are installed in parallel, in which a plurality of width pipes 20 are arranged in a circle at a predetermined angle in one processing tank 10, and a processing tank is shown. Sedimentation tanks 50 and 60 are provided outside the 10 and are connected to the width pipe 20 and the connection pipe 30.

The structure is the most preferred embodiment for obtaining the optimum processing efficiency in the minimum space, the arrangement structure can be modified according to the throughput or the installation location.

The configuration of the treatment tank 10, the width pipe 20, and the settling tanks 50, 60 is the same as already mentioned.

Therefore, the parallel structure of the aeration / agglomeration of the waste water in each of the aeration pipe 20 is sent to each settling tank (50, 60), it is possible to maximize the treatment capacity.

Hereinafter will be described the operation of the processing apparatus according to an embodiment of the present invention.

The raw waste water flows into the upper portion of the treatment tank 10 through the raw waste water supply pipe 11 according to the operation of the pump and is filled with a predetermined water level inside the treatment tank 10, and the wastewater introduced into the treatment tank 10 is a width pipe. 20 is introduced into the width pipe 20 through the inlet hole 22 formed at the bottom.

When the waste water is filled to a certain height, the waste water is aerated by aeration of the air disperser 21. When the blower 24 is driven, air is supplied to the air supply pipe 23, and the air supply pipe 23 is supplied. Air is dispersed in the bottom surface of the pipe 20 through the air disperser 21 which is connected.

Therefore, the air is dispersed through the holes formed in the air disperser 21, so that fine bubbles are generated inside the width pipe 20, and the organic bubbles of the waste water are attached to the surface of the fine bubbles.

At this time, by controlling the coagulant metering supply valve 43 to open the coagulant inlet pipe 41, the coagulant contained in the coagulant tank 40 is introduced into the width pipe 20 through the inlet pipe 41 to the injection pipe ( Through 42).

Since the injection pipe 42 is located directly above the air disperser 21, the flocculant injected through the injection pipe 42 is directly injected into the bubble aerated.

Therefore, the flocculant is injected into the flocculant while being vigorously stirred with the wastewater in the width pipe 20 by the bubbles generated in the air disperser 21 to flocculate the wastewater.

In this way, the wastewater introduced into the width pipe 20 through the lower inlet 22 of the width pipe 20 reaches the upper surface of the water by the air and the coagulant injected through the air disperser 21 and the flocculant injection pipe 42. While being rapidly violently treated while injured, the wastewater reaching the upper surface of the wastewater is slowly stirred while passing to the first sedimentation tank 50 through a connection pipe 30 connected to the upper part of the width pipe 20.

Here, the height from the width pipe 20 to the surface of the surface where rapid stirring occurs and the slow stirring can be adjusted to the concentration of the wastewater and its concentration.

The treated water introduced into the first settling tank 50 through slow stirring through the connecting pipe 30 enters the inlet of the settling tank 50 separated by the diaphragm 51 and flows through the lower portion of the diaphragm 51. Through 53 is introduced into the discharge portion of the settling tank (50). At this time, among the flocks contained in the treated water, the heavy heavies are generally precipitated under the first settling tank 50.

The treated water introduced into the discharged portion of the floc is discharged to the second settling tank 60 only through the distribution pipe 52 installed on the first settling tank 50.

In this process, as described above, most of the heavy flocs are precipitated in the first settling tank 50 and the supernatant introduced into the second settling tank 60 again passes through the same process as the first settling tank 50 through the second settling tank 60. The upper portion of the upper portion of the discharge portion is discharged through the supernatant discharge tube 62 installed in the discharge portion of the second settling tank (60).

On the other hand, the sludge settled on the bottom of each settling tank (50, 60) is processed through the sludge discharge pipe 70 is connected to the bottom of the settling tank in accordance with the opening and closing operation of the solenoid valve (71).

According to the wastewater treatment apparatus according to the present invention as described above, the flocculation treatment by the flocculant is maximized by the cross-linking action of bubbles rising vertically in water to easily handle the flocculation of colloidal substances, algae or hardly decomposable phosphorus, etc. It can be effective.

In addition, due to the vertical rise of bubbles and the cross-linking action of the bubble interface itself, more cohesive force can be exerted, and through rapid stirring and slow stirring, efficient flocculation and smooth continuous flocculation can achieve high purification ability and purification efficiency. .

Claims (6)

(Correction) A waste water treatment apparatus comprising a treatment tank into which waste water flows in, and an air distributor disposed vertically in the treatment tank and having an air distributor for generating bubbles at the bottom thereof to aeration the waste water. A coagulant inlet tube extending through the inside of the air pipe to the upper air disperser is provided, so that the coagulant can be directly injected into the processing liquid aerated by the air disperser through the coagulant inlet tube. Processing unit. The wastewater treatment apparatus according to claim 1, wherein the width pipe extends to the upper surface of the treatment tank, and the upper end is connected to the sedimentation tank via a connecting pipe. (Correction) a treatment tank for receiving the waste water to be treated; The air pipe is installed vertically in the treatment tank and is formed at the bottom of the width pipe, the inlet hole in which waste water is introduced into the side at the bottom, and the air diffuser for generating bubbles by dispersing air into the width pipe, and through the bottom of the pipe. An air supply pipe connected to the air supply pipe, the air supply pipe being connected to the air supply pipe and configured to generate air in the waste water of the treatment tank; Located on the outside of the treatment tank is a coagulant tank containing the coagulant, an inlet pipe connected to the coagulant tank extending into the treatment tank, connected to the bottom of the inlet pipe penetrates the outside of the width pipe to be located above the air diffuser inside the width pipe A coagulant injection pipe and a coagulant inlet unit installed at one side of the inlet pipe and configured to supply an amount of coagulant to control the amount of coagulant flowing through the inlet pipe, and directly injecting the coagulant into the aerated waste water; A sedimentation tank for sedimenting the flocculated floc from the medullary fluid introduced through the connection pipe connected to the upper part of the pipe; Wastewater treatment device comprising a. According to claim 2 or claim 3, wherein the sedimentation tank is installed in the inner center of the diaphragm, the lower end of the diaphragm forms a flow path so that the water can be flowed, the bottom is opened and closed by a solenoid valve to discharge the sludge deposited Wastewater treatment device, characterized in that the sludge discharge pipe is connected. The waste water according to claim 4, wherein at least two sedimentation tanks are arranged in series, and a distribution pipe through which treatment water is circulated is installed between the sedimentation tanks so that treated water can pass sequentially through each sedimentation tank. Processing unit. The wastewater treatment apparatus according to any one of claims 1 to 3, wherein at least two width pipes are arranged in parallel.