KR101232884B1 - Settling tank having waterway type flocculation tank(swf) - Google Patents

Abstract

PURPOSE: A settling basin equipped with a ditch type flocculation basin is provided to save the space for the polluted water treatment facility as there is no need to separate the flocculation basin and the settling basin individually by combining the ditch type flocculation basin in the settling basin; save costs; and increase the precipitation efficiency increasing the flocculation efficiency securing enough of the reaction time between polluted substances and coagulant included in the polluted water extending the length of the circulating path of the polluted water. CONSTITUTION: A settling basin comprises a settling tank(10), a ditch type flocculation tank(20); the rectifier tube(30): the first partition board: the first guide plate: the second guide board: an induction pipe: an over flow part(80): discharge pipe(90): a coagulant feed part(100):a coagulant inlet pump(110); and a support leg. The ditch type flocculation basin is arranged outside the upper part of the settling tank. The ditch type flocculation basin comprises a barrier wall portion(21) arranged separately to the circumference of the flocculation tank and a bottom surface(22). One end of the bottom surface is extended from the low-end of the barrier wall portion and the other end of the bottom surface is combined in the exterior wall of the settling tank. The barrier wall portion, the bottom surface and the exterior wall form the water path where polluted water circulates and the coagulant and polluted substances in polluted water form floc by reaction in case of the circulation of the polluted water. [Reference numerals] (AA) Introducing contaminated water; (BB) Discharging

Description

Sedimentation basin with water channel type flocculation tank {Settling tank having Waterway type Flocculation tank (SWF)}

The present invention relates to a sedimentation basin having a channel-type flocculation tank, and particularly, condensation and sedimentation are simultaneously performed by turning the channel-type flocculation tank through the condensate water before the contaminated water flows into the sedimentation tank, and the turning path of the contaminated water is sufficiently long. The present invention relates to a sedimentation basin having a channel-type flocculation tank having a sufficient time for the reaction between the pollutant and the flocculant contained in the contaminated water to increase the flocculation efficiency and improving the precipitation efficiency.

In the treatment of contaminated water, it is common to introduce a flocculant into a contaminant contained in the contaminated water so that the contaminant and the flocculant react to form flocs and a flocculation tank to precipitate the flocs.

1 schematically illustrates a conventional process of treating contaminated water, in which contaminated water is introduced into the coagulation tank 1, and the coagulation tank 1 is included in the contaminated water by using a coagulant input device 2. React contaminants and flocculants The flocculant reacts with the contaminant to form flocs. The contaminated water in which the floc is formed moves from the flocculation tank 1 to the settling tank 2, and in the settling tank 2, the floc is settled to undergo contaminated water treatment.

However, such a conventional method of treating contaminated water requires a considerable space in order to install a treatment facility including the flocculation tank 1 and the precipitation tank 2 by providing the flocculation tank 1 and the precipitation tank 2 separately. There is a disadvantage in that the cost is increased in connection with the site purchase, and the construction period of the contaminated water treatment facility is long because the flocculation tank 1 and the sedimentation tank 2 must be installed separately.

The present invention has been made in order to solve the problems as described above, by condensing and settling at the same time by passing through the condensation tank of the water channel form before the contaminated water flows into the sedimentation vessel, and the contaminant water turning path long enough The purpose of the present invention is to provide a channel-type flocculation tank having a sufficient time for the contaminants contained in the contaminated water to react with the flocculant to increase the flocculation efficiency to improve the precipitation efficiency.

A channel-type flocculation tank according to the present invention includes a sedimentation tank in which contaminants contained in contaminated water are precipitated; A channel agglomeration tank disposed outside the settling tank to allow the polluted water to pivot, and the pollutant and the flocculant react to form a floc during the pivot; It is disposed in the vertical direction in the inside of the sedimentation barrel, and the rectifying pipe into which the contaminated water flows through the channel-type coagulation tank; characterized in that it comprises a.

In addition, the channel type agglomeration tank includes a partition wall portion spaced apart around the outer wall of the settling tank, and one end portion extends from the lower end of the partition wall portion and the other end is coupled to the outer wall of the settling tank, the partition wall The portion, the bottom portion, and the outer wall preferably form a channel through which the polluted water turns.

In addition, the channel-type flocculation tank is preferably formed at the upper end of the settling barrel.

Moreover, it is preferable to provide the 1st partition board which connects the said partition wall part and the said outer wall.

In addition, a first guide plate protruding from the outer wall toward the partition wall portion, and a second guide plate protruding from the partition wall portion toward the outer wall, wherein the first guide plate and the second guide plate are alternately repeated. Is preferably installed.

In addition, the induction pipe is provided to connect the outer wall and the rectifying pipe, it is preferable that the contaminated water flows into the rectifying pipe via the induction pipe after the outside of the settling barrel.

In addition, the lower end portion of the rectifying pipe is preferably provided with an inclined plate inclined toward the inner circumferential surface of the settling barrel as it extends downward.

In addition, it is preferable that the lower end of the sinking process has an inclined surface inclined downward toward the center side.

In addition, it is preferable that a hopper portion, in which the contaminants are deposited and collected, is formed on the lower side of the center side of the sinker.

The sedimentation basin having a channel-type flocculation tank according to the present invention provides the effect of simultaneously performing flocculation and precipitation by turning the channel through the flocculation tank in the form of contaminants before the contaminated water flows into the settler.

In addition, by combining the channel-type coagulation tank in the settling tank, there is no need to separately install the coagulation tank and the settling tank, thereby providing a cost saving effect by saving the space of the contaminated water treatment equipment.

In addition, the turning path of the contaminated water is sufficiently long to secure a sufficient time for the contaminant contained in the contaminated water and the coagulant to react to increase the coagulation efficiency to provide an effect of improving the precipitation efficiency.

1 is a schematic conceptual view of a conventional polluted water treatment plant,
Figure 2 is a cross-sectional view of the sedimentation basin having a channel type flocculation tank according to an embodiment of the present invention,
3 is a cross-sectional view taken along line III-III of FIG. 2;
4 is a perspective view of the main portion of FIG.

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

FIG. 2 is a sectional view of a sedimentation basin having a channel type coagulation tank according to an embodiment of the present invention, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 4 is a perspective view of the main portion of FIG.

First, referring to FIG. 2, a sedimentation basin having a channel type agglomeration tank according to an embodiment of the present invention includes a settling tank 10, a channel type agglomeration tank 20, and a rectifying pipe 30.

The settling tank 10 is where the contaminated water containing contaminants are precipitated.

The source of contaminated water can be classified into a point source whose discharge port is specified at a fixed test site and a nonpoint source which does not specify the source of contaminated water.

Point sources include sewage treatment plants, livestock, manure, wastewater, domestic wastewater, industrial plant wastewater treatment plants, and leachate.Non-point sources include pollutants accumulated on the top of roads, bridges, and fine dust such as tires. For example. In the present invention, the flocculant is added to the floc in the process of passing through the channel-type flocculation tank 20 to form a floc to precipitate the pollutants. The present invention may be used to treat contaminated water generated from the point source or the nonpoint source.

The settling tank 10 employed in the present embodiment is to provide a space for the upper side is open and the contaminated water is guided to the inside so that the contaminants contained in the contaminated water can be precipitated by natural sedimentation.

2, the lower end of the sedimentation tank 10 employed in the present embodiment has an inclined surface 11 inclined downward toward the center side, so that the naturally settled contaminants are lowered along the inclined surface 11. Allow it to be moved.

In addition, a hopper portion 12 is formed at the bottom of the central side of the settling tank 10 to collect the settled contaminants. When contaminants are accumulated at a predetermined level or more in the hopper part 12, the contaminants accumulated in the hopper part 12 are periodically discharged to the outside.

The water channel-type flocculation tank 20 is introduced into the flocculant before the contaminated water flows into the settling tank 10 to form a floc by reacting the pollutant and the flocculant. To ensure sufficient flow path before.

The channel-type coagulation tank 20 is disposed outside the settling tank 10 to allow the contaminated water to rotate around the settling tank 10. According to this embodiment, in order to inject the coagulant into the channel type flocculation tank 20, a coagulant supply unit 100 and a coagulant input pump 110 is provided.

When the contaminated water flows along the channel type flocculation tank 20, the contaminant and the flocculant react with each other to form flocs.

According to this embodiment, the channel-type coagulation tank 20 includes a partition wall portion 21 and a bottom surface portion 22.

The partition 21 is spaced apart around the outer wall of the settling tank 10. In the present embodiment, the settling barrel 10 has a circular cross section, and the partition 21 also has a ring shape according to the outer shape of the settler 10. Of course, the settling cylinder 10 is not limited to the cross-section of the circular shape, or the partition 21 is not limited to the ring shape.

One end of the bottom portion 22 extends from the lower end of the partition 21 and the other end is coupled to the outer wall of the settling tank 10. Therefore, the partition wall portion 21, the bottom surface portion 22, and the outer wall of the settling tank 10 has a "C" shape with its cross section open in an upward direction. That is, the partition wall portion 21, the bottom surface portion 22, and the outer wall of the settling tank 10 forms a channel through which the contaminated water turns.

In this embodiment, the channel-type coagulation tank 20 is formed on the upper end of the settling tank (10). The contaminated water flowing by turning the water channel-type coagulation tank 20 is introduced into the settling tank 10, and since the contaminated water is introduced into the upper end side of the settling tank 10, flocs included in the contaminated water settle naturally. Enough time to settle.

According to this embodiment, the channel-type coagulation tank 20 is provided with a first partition plate 40, a first guide plate 50, and a second guide plate 60.

The first partition plate 40 is a plate connecting the partition wall portion 21 and the outer wall. The bottom surface of the first partition plate 40 is coupled to the bottom portion 22, and the channel is bisected based on the first partition plate 40.

Specifically, as shown in FIG. 3, initially, contaminated water flows into one side of the first partition plate 40. Referring to FIG. 3, the contaminated water flows in the direction of arrow A adjacent to the first partition plate 40. The introduced contaminated water is moved around the first partition plate 40 again after turning the outer circumferential surface of the settling tank 10 along the waterway, and the contaminated water returned to the vicinity of the first partition plate 40 is a rectifying pipe which will be described later. Inflow to (30).

The first and second guide plates are provided to secure a sufficiently long flow path of the contaminated water.

The first guide plate 50 protrudes from the outer wall toward the partition wall portion 21. 3 and 4, one end of the first guide plate 50 is coupled to the outer wall, and the other end is spaced apart from the partition 21. Thus, the spaced space between the other end of the first guide plate 50 and the partition 21 forms a flow path through which the contaminated water moves.

The second guide plate 60 protrudes from the partition wall portion 21 toward the outer wall. 3 and 4, one end of the second guide plate 60 is coupled to the partition 21 and the other end is spaced apart from the outer wall. Thus, the spaced space between the other end of the second guide plate 60 and the outer wall forms an induction in which the contaminated water moves.

According to this embodiment, the first guide plate 50 and the second guide plate 60 are alternately and repeatedly provided. Thus, as shown in FIG. 3, the contaminated water flows in the zigzag direction by the first and second guide plates 50 and 60 while flowing along the water channel.

Therefore, when the contaminated water flowing into the channel-type flocculation tank 20 flows while turning around the settling tank 10 along the channel, the contaminant and the coagulant contained in the contaminated water are secured by securing a long path of the contaminated water. You have enough time to react.

In addition, by adjusting the height of the partition wall portion 21 and the number of installation of the first and second guide plates 50 and 60, a flow path suitable for the quantity of water introduced may be secured. When the flow rate of the contaminated water to be treated is expected to be relatively high, the height of the partition wall 21 is increased so that the contaminated water can be accommodated in the water channel and the number of the first and second guide plates 50 and 60 is increased. The longer the flow path, the more effectively the contaminated water can be treated.

Therefore, it is possible to effectively utilize the space defined by the sedimentation tank 10 and the channel-type agglomeration tank 20 coupled to the upper side of the sedimentation vessel 10, and to actively cope with the expected treatment capacity of the contaminated water. .

The rectifying pipe 30 is disposed in the up and down direction inside the settling tank 10, and is provided to introduce contaminated water via the channel-type coagulation tank 20.

According to the present embodiment, the rectifying pipe 30 is connected to the induction pipe 70 into which the contaminated water turned along the channel-type coagulation tank 20 is introduced. One end of the induction pipe 70 is connected to the outer wall of the settling tank 10, the other end is connected to the rectifying pipe 30. One end of the induction pipe 70 is coupled to the outer wall opposite the place where the contaminated water flows into the first channel-type coagulation tank 20 based on the first partition plate 40.

Therefore, the contaminated water flows in the A direction of the channel agglomeration tank 20, flows along the water channel, moves near the first partition plate 40, and flows into the rectifying pipe 30 along the induction pipe 70. . That is, the contaminated water is introduced into the rectifying pipe 30 via the induction pipe 70 after turning outside the settling tank 10.

In this embodiment, the rectifying pipe 30 is disposed in the center of the settling tank 10, the lower end of the rectifying pipe 30 is provided with an inclined plate 31.

The inclined plate 31 is provided at the lower end of the rectifying pipe 30, and is formed to be inclined toward the inner circumferential surface of the settling tank 10 as extending downward. That is, the inner diameter of the upper end of the inclined plate 31 connected to the rectifying pipe 30 is smaller than the inner diameter of the lower end of the inclined plate 31.

The inclined plate 31 serves to form a flow path of the contaminated water when the contaminated water is filled up from the lower end of the settling tank 10 and the inclined surface of the inclined plate 31 rises.

On the other hand, according to an embodiment of the present invention, the sedimentation basin is provided with a overflow portion 80 and the discharge pipe (90).

The overflow portion 80 is provided at the upper end of the settling tank 10, and includes a horizontal plate 81 and a vertical plate 82.

The horizontal plate 81 is one end is coupled to the upper portion of the settling tank 10, the other end is a plate extending horizontally to the rectifying pipe 30 side. The vertical plate 82 is a plate extending upward from the end of the horizontal plate 81. The inner circumferential surface of the horizontal plate 81, the vertical plate 82, and the settling vessel 10 is filled from the lower portion of the settling vessel 10 to provide a space in which overflowing contaminated water overflows.

That is, the contaminated water is filled up from the lower end of the settling tank 10, rises, is collected in the overflow portion 80 over the vertical plate 82, the contaminated water collected in the overflow portion 80 is discharge pipe 90 It is discharged to the outside through. The discharge pipe 90 is coupled to the overflow portion 80 to discharge the contaminated water collected in the overflow portion 80 to the outside.

Hereinafter, the action and effect of the sedimentation basin having a channel-type coagulation tank of the present invention according to the above configuration will be described in detail.

According to the present embodiment, the contaminated water containing the contaminants first flows into the vicinity of the first partition plate 40 of the channel-type coagulation tank 20. As shown in Fig. 3, the contaminated water flows in the A direction and rotates in one direction along the waterway. At this time, the coagulant stored in the coagulant supplying unit is introduced into the channel type coagulant tank 20 by the coagulant injection pump.

The contaminated water rotates from the outside of the sedimentation tank 10 along the zigzag channel formed by the first and second guide plates, and the contaminant contained in the contaminated water and the coagulant react with each other sufficiently to form a floc. Secured.

When the contaminated water moves near the first partition plate 40 again, the contaminated water flows into the rectifying pipe 30 via the induction pipe 70. The contaminated water introduced into the rectifying pipe 30 falls and is led to the lower side of the sedimentation vessel 10 and gradually flows from the sedimentation vessel 10 to the upstream portion 80. The contaminated water filling the overflow portion 80 is discharged to the outside via the discharge pipe 90.

At this time, the floc formed in the channel agglomeration tank 20 is naturally settled and accumulated in the lower side of the settling tank 10. The floc slides along the inclined surface 11 of the sedimentation vessel 10 while spontaneously settling and collects in the hopper portion 12.

As such, the sedimentation basin having a channel-type flocculation tank according to the present invention provides an effect of simultaneously performing flocculation and precipitation by turning the condensation tank in the form of a channel before passing the contaminated water into the settling tank 10.

In addition, by combining the channel-type flocculation tank 20 to the settling tank 10, there is no need to separately install the flocculation tank and the settling tank 10 separately, thereby reducing the cost of the contaminated water treatment facility to reduce the cost to provide.

In addition, since the contaminated water flows in a zigzag form by the first and second guide plates 50 and 60, the flow path is sufficiently lengthened to ensure sufficient time for the floc to react with the contaminant contained in the contaminated water to form a floc. do. As a result, it increases the flocculation efficiency of contaminants and flocculants, thereby improving the precipitation efficiency.

In addition, by predicting the amount of contaminated water to be treated, if the height of the partition wall 21 and the number of the first and second guide plates are appropriately changed and manufactured, the throughput of the contaminated water can be actively replaced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, and many modifications may be made without departing from the scope of the present invention.

10 ... Settler 11 ... Slope
12 ... Hopper section 20 ... Channel type coagulation tank
21 ... bulkhead 22 ... bottom
30 ... Rectifier 31 ... Slope
40 ... First partition plate 50 ... First guide plate
60 ... 2nd guide plate 70 ... Induction pipe
80 ... Overflow 81 ... Horizontal
82 ... vertical plate 90 ... discharge piping
100. Coagulant supply unit 110 ... Coagulant injection pump

Claims (9)

The contaminant contained in the contaminated water is precipitated, the lower end is provided with an inclined surface 11 inclined downward toward the center side, and the sedimentation tank 10 in which the hopper part 12 is formed to collect and collect the contaminant at the center side of the lower end portion. );
It is disposed outside the upper end of the settling tank 10, the partition wall portion 21 and one end portion which is disposed spaced around the outer wall of the settling tank 10 extends from the lower end of the partition wall portion 21 and the other end portion Including a bottom portion 22 coupled to the outer wall of the sedimentation tank 10, the partition wall portion 21, the bottom portion 22, and the outer wall forms a channel for turning the contaminated water, A channel type agglomeration tank 20 in which flocculant reacts with the pollutant when the water is swung to form a floc;
It is disposed in the up and down direction inside the settling tank 10, the lower end portion is provided with an inclined plate 31 inclined toward the inner circumferential surface of the settling tank 10 as extending downward, the aqueduct type coagulation tank 20 Rectification pipe 30 through which the contaminated water flows in;
A first partition plate 40 connecting the partition wall portion 21 and the outer wall;
A first guide plate 50 protruding from the outer wall toward the partition wall part 21, one end of which is coupled to the outer wall and the other end of which is spaced apart from the partition wall part 21;
A second guide plate 60 protruding from the partition wall part 21 toward the outer wall, one end of which is coupled to the partition wall part 21, and the other end of which is spaced apart from the outer wall;
Here, the first guide plate 50 and the second guide plate 60 are alternately and repeatedly installed,
An induction pipe (70) for connecting the outer wall and the rectification pipe (30) to guide the contaminated water orbited in the water channel type agglomeration tank (20) to the rectification pipe (30);
Moonflow portion 80 provided inside the upper end of the settling tank 10;
A discharge pipe 90 having one end connected to the overflow part 80 and extending through the partition wall 21;
A coagulant supply unit 100 for supplying the coagulant to the water channel type coagulation tank 20;
A coagulant input pump (110) for pumping the coagulant from the coagulant supply unit (100) to the channel type coagulant tank (20);
Sedimentation basin having a channel-type flocculation tank comprising a; support bridge for supporting the settling tank (10).

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