KR20210137407A - Water purification system with larvae filtration - Google Patents

Abstract

The present invention relates to a water treatment apparatus equipped with a larval filtration facility. A water treatment apparatus equipped with a larval filtration facility, according to the present invention, comprises: a coagulation settling basin composed of a plurality of unit settling basins partitioned so as to separate and receive a certain amount of raw water, and settling the coagulated solids in the water by gravity by administering a coagulant to the raw water to separate the same from the raw water; a filter paper disposed behind the coagulation settling basin during the water treatment process and filtering the fine contaminants contained in the raw water by penetrating and flowing raw water supplied from the coagulant settling basin into a filter media layer; and a water passage for forming a raw water flow passage between the coagulation settling basin and the filter paper so that the raw water can be moved from the coagulation settling basin to the filter paper. In the weirs dividing the coagulation settling basin and the water passage, a weir hole is formed to correspond one by one to the unit settling basin at a height separated by a certain distance from a bottom of the coagulation settling basin. On a wall of the weir on the water passage side, a trough filter that filters out micro-contaminants and larvae of aquatic insects contained in raw water and passes only the raw water into the water passage is installed to correspond to each weir hole. Thus, the reliability of tap water can be improved by removing larvae from the raw water before the raw water flows into the filter paper.

Description

Water purification system with larvae filtration

The present invention relates to a water purification apparatus that improves raw water to a water quality suitable for drinking through a series of processes such as solid-liquid separation and disinfection. It relates to a water treatment system equipped with a larval filtration facility to remove insect larvae.

A water purification facility refers to a facility that receives raw water from a drinking water source and purifies it to a level suitable for drinking. The water treatment period is usually composed of admixture paper, coagulation paper, sedimentation paper, filter paper, and purified paper. have.

The simple treatment method is suitable for groundwater (especially spring water), and the raw water quality is stable and good. And the slow filtration method aims to remove a small amount of suspended matter and trace organic substances in raw water by a method suitable for surface water or lake water with relatively good quality of raw water.

The rapid filtration method is used when the raw water quality is at a level that cannot be purified by simple or slow filtration methods. It is a method used in cases where there is no, and refers to a method in which activated carbon or ozone treatment is added in addition to the rapid filtration method.

On the other hand, the flocculation paper constituting the water treatment facility is a facility that forms colloidal substances into flocs with good sedimentation properties by chemical coagulation operation A sedimentation basin is a facility for natural sedimentation of solids in water heavier than water to separate them from water, and is classified into ordinary sedimentation basins and chemical sedimentation basins.

The sedimentation basin can also be largely divided into a round sedimentation basin and a rectangular (rectangular) sedimentation basin according to its shape. Among them, the circular sedimentation pond has the advantage of being easy to select a sludge collector (scraper) and easy maintenance due to low wear and tear. However, compared to the rectangular sedimentation pond, it requires a larger site, and due to its geometrical characteristics, there is a disadvantage that the idle area is large to arrange several without empty space.

On the other hand, rectangular sedimentation basins have a longer average residence time of raw water compared to circular sedimentation basins, so when compared with the same volume, rectangular sedimentation basins are more efficient than circular sedimentation basins. There are advantages to being able to Therefore, in the case of water purification facilities, there is a tendency to prefer rectangular sedimentation ponds.

The settling pond has a large facility, and in particular, the coagulant input during the treatment process reacts well with oxygen to form flocs with good sedimentation properties, most of which are located outdoors in the open. However, the coagulant component has a high viscosity and provides a good environment for the larvae to live. Therefore, the possibility of larvae occurrence is higher than that of other treatment tanks, and in fact, larvae are frequently found in sedimentation ponds.

Most of the larvae living in sedimentation ponds tend to migrate to the bottom. Therefore, it is removed by the sludge collector (scraper) at the bottom of the sedimentation basin together with the solids deposited on the bottom, but due to water flow or disturbance, some small larvae of about 1st to 2nd instar float above the water surface and flow to the next process, the filter paper. will go in

For this reason, it is possible to consider a method to kill the larvae by fortifying the chemicals used in the process of anti-chlorine, heavy chlorine treatment, pre-morning treatment, and water purification process. However, there is a limit in completely removing the larvae because chemical enhancement alone cannot satisfy the level that can kill the larvae, more specifically, the CT value (disinfection ability) of water treatment.

Korean Patent Registration No. 10-0787406 (published on December 13, 2007)

The technical problem to be solved by the present invention is to provide a water treatment device equipped with a larval filtration facility that can reliably remove larvae contained in raw water by a physical method, and thereby improve the reliability of tap water. .

According to one aspect of the present invention as a means for solving the problem,

a coagulation settling tank consisting of a plurality of unit settling tanks partitioned to separate and receiving raw water by a predetermined amount, and separating the solids in the water coagulated by the administered coagulant by gravity to separate them from the raw water;

a filter paper disposed behind the coagulation settling basin during the water treatment process and filtering the fine contaminants contained in the raw water by penetrating and flowing raw water supplied from the coagulant settling basin into the filter media layer;

Includes; a water channel for forming a passage through which raw water can flow between the flocculation settling basin and the filter paper so that the raw water can be moved from the flocculation sedimentation basin to the filter paper,

In the weir partitioning the coagulation sedimentation basin and the water channel, a weir hole is formed to correspond one by one to the unit sedimentation basin at a height separated by a certain distance from the bottom of the sedimentation tank,

Trough filters that filter out micro-contaminants and larvae of aquatic insects contained in raw water and pass only raw water into the water channel are installed on the wall surface of the weir on the waterway side so that one corresponds to each of the wear holes. It provides a water treatment device equipped with a larval filtration facility characterized by.

Here, the water channel part is separated from the settling tank outflow waterway through the intermediate partition wall having a hole at a certain height and an outlet hole communicating with the filter paper inlet on one side wall and the settling tank outlet waterway adjacent to the coagulation settling tank with the weir interposed therebetween. The filter paper inflow waterway, the settling paper outflow waterway and the filter paper inflow waterway are separated from the waterways below to form a backwash water discharge path supplied for washing the filter paper. .

In addition, the water treatment device equipped with a larval filtration facility according to the present invention is a walkway that is installed higher than the water level of the sedimentation basin effluent along the sedimentation basin effluent in order to form a walking path for administrator access to the trough filter. ; may be further included.

At this time, preferably, the walkway part has a main walkway installed along the settling outlet waterway with a width smaller than the width of the settling tank outlet waterway, and is branched from the main walkway in the weir direction to the amount of each trough filter. A plurality of approach walkways installed to form a sidewalk passageway, and an entrance and exit stairs installed on both sides of the main walkway to connect the main walkway inside and outside the sedimentation basin runoff can

Here, the main walkway and the plurality of approach walkways are spaced apart from the water surface of the sedimentation basin runoff water by the wall fixing rods attached and fixed to the wall surface of the weir on the waterway side and the wall surface of the intermediate bulkhead facing it, and the wall fixing rods. It may be configured of a scaffold frame composed of scaffold supports supported by a scaffold and a scaffold installed on the scaffold frame.

In addition, the trough filter is formed in an open basket structure with an upper surface, a lower surface, and a side portion, and is attached to a wall surface of the wear at a height at least lower than the lower end of the wear hole through a wall fixing bar and a draw bar; It may include a bag filter composed of a bag-shaped mesh having a handle that is inserted into the filter case through the upper opening of the filter case and fixed or separated from the filter case.

Preferably, a perforated plate may be installed on each of the open side and lower surfaces of the filter case except for the upper surface.

In addition, a splash guard that surrounds the outlet of the wear hole and is coupled to cover the trough filter from the top to isolate the space between the wear hole and the trough filter from the outside to prevent water splashing; may further include .

Here, the splash guard is made of a transparent or translucent material so that the inside can be seen, and it can be detachably coupled to a rail rod installed on the wall of the wear around the wear hole outlet in a slide manner.

According to the purification treatment apparatus according to the embodiment of the present invention, by installing a filter in the middle of the flow of raw water from the coagulation sedimentation basin to the filter paper and inspecting it in advance, it is possible to check in advance whether or not larvae have occurred as well as the amount of larvae, so that appropriate follow-up measures can be taken. In addition, the self-cleaning function due to the flow effect of the filter can maintain the performance for a long time without clogging the filter, which has the advantage of easy maintenance.

In addition, in the prior art, when larvae are introduced from raw water during the water treatment process, there is no physical facility to remove larvae in the tap water production process from the water well to the water purification process, so there is a possibility that the larvae may be moved to the consumer. By physically removing it, it can contribute to improving the reliability of tap water.

1 is a plan view of a water treatment apparatus equipped with a larval filtration facility according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the water treatment apparatus having the larval filtration facility shown in FIG. 1 as viewed from the line AA.
Figure 3 is a perspective view of the main part of the present invention shown in Figure 2 viewed from the water channel side.
Figure 4 is a plan view of the walkway portion.
FIG. 5 is an enlarged cross-sectional view of part 'B' of FIG. 2 ;
Figure 6 is an exploded perspective view showing a preferred embodiment of the trough filter applied to the present invention.
FIG. 7 is a view of the Traff filter shown in FIG. 6 as viewed from the side;
8 is a view showing a modified example of the filter case shown in FIG.
9 is an operation state diagram of the main part for explaining the operation and effect of the present invention.
10, 11 is an exploded perspective view and a combined perspective view showing another preferred embodiment of the present invention further comprising a splash guard.

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

In describing the present invention, the terms used in the following specification are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in this specification, terms such as "comprise" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other It is to be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, terms such as “…unit”, “…unit”, “…module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. can

In the description with reference to the accompanying drawings, the same reference numerals will be given to the same components for the same drawings, and the overlapping description thereof will be omitted. In the description of the present invention, when it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a plan view of a water treatment apparatus equipped with a larval filtration facility according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the water treatment apparatus equipped with a larval filtering facility shown in FIG. 1 as viewed from the line A-A. And FIG. 3 is a perspective view of the main part of the present invention shown in FIG. 2 as viewed from the water channel side, and FIG. 4 is a plan view of the walkway part.

1 to 4, the water treatment apparatus equipped with a larval filtration facility according to an embodiment of the present invention, between the flocculation sedimentation basin 10 and the filter paper 30, and the flocculation sedimentation basin 10 and the filter paper 30 It is composed of a water channel portion 20 of In addition, the tray installed on the wall surface of the weir 15 in correspondence to the opening (hereinafter referred to as 'weir hole 16') of the weir 15 that divides the coagulation sedimentation tank 10 and the water channel 20 It includes a Trough filter (40).

The coagulation settling basin 10 is a facility that separates raw water from raw water by administering a coagulant to raw water and sedimenting agglomerated solids (flocs) in water using gravity. It may be composed of settling basins (10-1 to 10-6). Although the figure shows, for example, that the settling tank is composed of six rectangular unit settling tanks (10-1 to 10-6), the shape or number of the settling tank is not particularly limited.

The filter paper 30 is disposed behind the flocculation settling tank 10 during the treatment process to post-treat raw water from which solids are filtered in the settling tank to purify it with cleaner water quality. The filter paper 30 is, for example, a known downflow that filters the fine contaminants contained in the raw water by penetrating and flowing raw water supplied from the coagulation sedimentation basin 10 on a filter media layer (a layer composed of media such as sand or activated carbon). it can be the way

Of course, in addition to the downflow method that filters micro-contaminants by penetrating and flowing over the filter media layer (a layer made of media such as sand or activated carbon), on the contrary, raw water is supplied from below the media layer and the raw water is transmitted over the media layer to be included in the raw water. All known filtration methods can be applied, including an upflow method that filters out fine contaminants from the filter media layer.

Raw water that has been pre-treated in the coagulation sedimentation tank 10 is moved to the filter paper 30 through the water channel 20 . To this end, the water channel 20 is disposed between the flocculation sedimentation basin 10 and the filter paper 30 to provide a passage through which raw water can flow from the flocculation sedimentation basin 10 to the filter paper 30 . As in the example of FIG. 2 , the water channel part 20 may be configured with a settling tank outlet channel 22 , a filter paper inlet channel 24 , and a backwash water outlet 26 .

The settling tank outflow waterway 22 is disposed adjacent to the coagulation settling tank 10 with the weir 15 interposed therebetween, and the raw water flowing out from the coagulating settling tank 10 through the weir hole 16 is adjacent to the filter paper inlet channel 24 ) to provide a path for movement. And the filter paper inflow channel 24 has an outlet hole 250 communicating with the inlet (symbol omitted) of the filter paper 30 on one side wall, and has an intermediate partition wall 23 having a through hole 230 at a certain height between the settling paper It is separated from the effluent waterway (22).

The wear hole 16, the through hole 230, and the outlet hole 250 formed in each of the wear 15, the middle partition wall, and the one side wall 25 of the filter paper inflow channel 24, the wear hole 16 is the most It is located high, and then the through hole 230 and the outlet hole 250 are configured to be located low in the order, so that the raw water flows into the coagulation settling tank 10 → the settling tank outflow water 22 → the filter paper influent 24, and the filter paper influent water It can flow naturally from the furnace 24 to the filter paper 30 .

In the configuration of the water channel 20 , the backwash water withdrawal 26 is supplied to the filter paper 30 through a dedicated pipe (backwashing tube) for washing (backwashing) the filter paper 30, and then backwashing water that has worked as washing water is discharged. provide a way to do so. Such a backwash water outlet 26 may be configured to be isolated from the water channels 22 and 24 under the settling tank outlet channel 22 and the filter paper inlet channel 24, as shown in the figure, but is limited thereto. it is not

The above-described weir hole (Weir Hole, 16) is formed in the weir 15 that divides the coagulation sedimentation tank 10 and the water channel 20 . The wear hole 16 is a passage for spatially connecting the flocculation sedimentation basin 10 and the water channel part 20 so that raw water can flow from the flocculation sedimentation basin 10 to the water channel part 20, and the flocculation sedimentation tank 10. It may be formed so as to correspond to one of the unit settling basins (10-1 to 10-6) at a height separated by a certain distance from the bottom of the .

The Trough filter 40 is installed on the wall of the wear 15 on the water channel 20 side. The trough filter 40 filters out micro-contaminants and aquatic insect larvae contained in the raw water and allows only raw water to pass through the wear holes 16 to correspond to each of the wear holes 16, one by one, so that the wear holes 16 ) may be installed at a lower height than the wear hole 16 on the wall of the wear 15 on the outlet side.

The water treatment apparatus having a larval filtration facility according to an embodiment of the present invention also includes a walkway unit 50 . The walkway unit 50 provides a walking path that an administrator can access for maintenance of the trough filter 40 . This walkway part 50 may be installed higher than the water surface of the settling tank outflow channel 22 along the settling tank outflow channel 22 .

As shown in FIGS. 3 and 4, the walkway part 50 has a width smaller than the width of the settling outflow waterway 22 and the main walkway 52 (Main walkway) installed along the settling tank outflow waterway 22 and , branching from the main walkway 52 in the direction of the weir 15 and installed to form a walking path on both sides of each Trough filter 40 may be composed of a plurality of approach walkways 54. .

FIG. 5 is an enlarged view of part 'B' of FIG. 2 .

5 and 4 above, the walkway unit 50 is specifically attached to the wall surface of the wear 15 on the side of the water channel 20 and the wall surface of the intermediate partition wall 23 facing the same, the wall mounting bracket 520 fixed thereto. ), and a scaffold frame 522 composed of scaffold supports 523 supported in a spaced apart state from the water surface of the settling basin outlet waterway 22 by the wall fixtures 520, and installed on the scaffold frame 522. It may be composed of a footrest (524).

The wall bracket 520 has a predetermined thickness and is a rectangular plate body long in the height direction as shown in the drawing (FIG. 5), is firmly attached and fixed to the corresponding wall surface through an anchor bolt (A), and a support piece 521 is provided at the lower end. may have a configuration, and the scaffold frame 522 may be configured in a rectangular frame shape having a rectangular planar shape by connecting the rod-shaped scaffolding supports 523 having a rectangular or 'L' cross-section vertically and horizontally.

The scaffold frame 522 is coupled to the support piece 521 of the wall fixture 520 in such a way that the lower end of one edge is seated, as in the example of FIG. It can be supported in a state, and the walkway part 50 can be configured by placing the scaffold 524 on the scaffold frame 522 . Here, the footrest 524 may be a grating, but is not limited thereto.

The walkway portion 50 having such a configuration depends on the number or size of the trough filters 40 installed one by one corresponding to the wear hole 16, and the width and overall length of the water channel (settling cell outlet channel 22), The number and width of the approach walkway 54, and the width of the main walkway 52 may vary. Therefore, it should be noted that the number or width of the approach walkway 54 and the width of the main walkway 52 are not limited to specific values.

In FIG. 4 above, reference numeral 56 denotes an entry/exit staircase. The entrance and exit stairs 56 are installed on both sides of the main walkway 52 to connect the outside of the settling tank outflow channel 22 and the main walkway 52 inside the settling tank outflow channel 22, so that the walkway part 50 is While providing a passage for the manager's entry, it also functions as a support for supporting the walkway part 50 together with the wall fixture 520 from the water surface of the settling water outlet 22 .

6 is an exploded perspective view illustrating a preferred embodiment of the trough filter applied to the present invention, and FIG. 7 is a side view of the trough filter shown in FIG. 6 .

6 and 7 , the trough filter 40 may include a filter case 42 and a bag filter 45 . The filter case 42 may have a basket structure in which the upper and lower surfaces and the side portions are opened as shown in the drawings, and the bag filter 45 is attached to the filter case 42 through the upper opening portion of the filter case 42 . It may be a bag-shaped mesh with a handle 46 that is inserted and fixed or detached from the filter case 42 .

The filter case 42 may be stably and firmly attached to one side wall of the wear 15 at a height at least lower than the lower end of the wear hole 16 through the wall fixing bar 43 and the draw bar 44 . . In addition, the bag filter 45 is a mesh having a mesh size sufficient to filter out even the first instar larvae of aquatic insects having a size of about 0.5 mm, preferably polyester having a mesh size of 150 to 200 mesh. (wire diameter 0.065mm, spacing 0.1mm) It may be a mesh material.

Although not shown, in some cases, the bag filter 45 may be configured in two layers. That is, the bag filter 45 may be configured in the form of a double filter in which an inner bag filter (inner bag filter) is inserted inside the outer bag filter (outer bag filter). In this case, since the filtering proceeds over the second stage due to the two-layer bag filter, the larvae contained in the fluid (raw water) can be more reliably filtered.

As in the modified example of FIG. 8 , the filter case 42 may be provided with a perforated plate 48 having innumerable holes on all surfaces except for the upper surface, that is, the open side and lower surfaces, respectively. In this case, damage such as deformation or tearing of the bag filter 45 that may occur when the fluid (raw water) falling from the wear hole 16 toward the trough filter 40 collides with the bag filter 45 is prevented, so that the larvae Filtration performance can be exhibited stably.

According to such an embodiment of the present invention, as shown in FIG. 9 , the trough filter 40 in the middle of the raw water to be treated falls from the coagulation settling tank 10 to the water channel 20 side through the wear hole 16 as shown in FIG. 9 . is disposed, all raw water discharged from the coagulation sedimentation basin 10 passes through the trough filter 40, and in this process, fine solids contained in the raw water (scum having a larger particle size than the mesh of the bag filter 45) etc.) and larvae of aquatic insects are filtered out.

Here, the filtered larvae include the first instar with a head 0.1mm body length 0.78~1.1mm, a second instar with a head 0.17mm body length 1.1~3.6mm, a head 0.3mm body length 3rd instar with a body length 3.6~7.0mm, and a head 0.47mm body length 7.0~ It can include all 4 instars of 14.6mm.

That is, when raw water passes through the bag filter 45, the raw water, which is a fluid, changes direction along the filter surface of the bag filter 45, but particulate matter such as larvae and scum collide with the filter surface due to inertia to generate kinetic energy. The particles of colloidal suspended matter such as scum other than the collected larvae are not deposited on the filter surface due to the flow of the bag filter 45 that occurs when raw water collides with the filter surface, but fall off the filter surface. Self-Cleaning function can also be exhibited.

10 and 11 are an exploded perspective view and a combined perspective view showing another preferred embodiment of a trough filter unit applied to a water treatment device equipped with a larval filtration facility according to the present invention.

Another preferred embodiment of the present invention shown in FIGS. 10 and 11 is the same as the configuration of the above-described embodiment except that it further includes a splash guard (Splash guard, 60). Therefore, hereinafter, duplicate description of the same configuration as that of the above-described embodiment will be omitted, and only the splash guard 60, which is an additional configuration, will be briefly described.

The splash guard 60 applied to another embodiment of the present invention is coupled to cover the trough filter 40 from the top while enclosing the periphery of the outlet of the wear hole 16 as shown in the figure, and the wear hole By isolating or disconnecting the space between the 16 and the trough filter 40 (including the raw water flow path and its surroundings) from the outside, splashing of water due to the falling collision of raw water is prevented.

More specifically, the splash guard 60 prevents water splashing due to the falling collision of the raw water, so that the larvae included in the raw water are mixed with the splashing water, leaving the trough filter 40 and filtering the trough filter 40 By preventing or blocking the flow directly into the water channel 20 without going through it, it functions so that the larval filtration performance can be more fully exhibited.

The splash guard 60 applied to this embodiment is made of a transparent or translucent material so that the manager can visually check the flow of raw water and the filter state with the naked eye and perform proper maintenance, so that the inside can be seen, as shown in FIG. It may be configured to be detachably coupled to the rail 70 installed on the wall surface of the wear 15 around the exit of the wear hole 16 in a sliding manner to cover the upper space of the trough filter 40 .

Of course, in addition to the slide-type coupling structure using the rail 70, although not shown, a structure that is coupled to the trough filter 40 through a separate locking device such as a lock ring, or a filter case of the trough filter 40 There may be various modifications, such as a method of slidingly coupled to the trough filter 40 in the horizontal direction by configuring the rail on the upper surface of the 42 .

When larvae occur in raw water, conventionally, it is difficult to pre-monitor, so there is a problem found in the water discharged from the faucet at home after purification. By installing and inspecting in advance, it is possible to check in advance whether or not larvae have occurred, as well as the amount of larvae, so that appropriate follow-up measures can be taken.

In addition, in the prior art, when larvae are introduced from raw water during the water treatment process, there is no physical facility to remove larvae in the tap water production process from the water well to the water purification process, so there is a possibility that the larvae may move to the consumer. By removing it, it can contribute to the improvement of the reliability of tap water, and the self-cleaning function due to the flow effect of the filter does not clog the filter and maintains its performance for a long period of time, so maintenance is easy.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the present invention as defined by the appended claims. should be

10: coagulation sedimentation tank 15: Weir
16: Weir hole 20: water channel
22: sediment effluent 23: intermediate bulkhead
24: filter paper influent 26: backwash water discharge
40: trap filter 42: filter case
43: wall fixing bar 44: draw bar
45: bag filter 46: handle
48: perforated plate 50: walkway part
52: main walkway 54: approach walkway
56: entrance stairs 60: splash guard
70: rail 230: through hole formed in the middle bulkhead
250: Outflow hole formed in one side wall of the filter paper influent
520: wall fixture 521: support piece
522: scaffold frame 523: scaffold support
524: scaffold

Claims (9)

a coagulation settling tank consisting of a plurality of unit settling tanks partitioned to separate and receiving raw water by a predetermined amount, and separating the solids in the water coagulated by the administered coagulant by gravity to separate them from the raw water;
a filter paper disposed behind the coagulation settling tank during the water treatment process and filtering the fine contaminants contained in the raw water by penetrating and flowing raw water supplied from the coagulating settling tank into the filter media layer;
Includes; a water channel for forming a passage through which raw water can flow between the flocculation settling basin and the filter paper so that the raw water can be moved from the flocculation sedimentation basin to the filter paper,
In the weir partitioning the coagulation sedimentation basin and the water channel, a weir hole is formed to correspond one by one to the unit sedimentation basin at a height separated by a certain distance from the bottom of the sedimentation tank,
Trough filters that filter out micro-contaminants and larvae of aquatic insects contained in raw water and pass only raw water into the water channel are installed on the wall of the weir on the waterway side so that one corresponds to each of the wear holes. A water treatment device equipped with a larval filtration facility.
The method of claim 1,
The waterway part,
And the sedimentation basin effluent water adjacent to the coagulation sedimentation basin with the weir interposed therebetween;
A filter paper inflow waterway having an outlet hole communicating with the filter paper inlet on one side wall and separated from the settling paper outlet waterway by an intermediate partition wall having a through hole at a certain height;
Caterpillar filtration facility, characterized in that it includes a backwash water withdrawal that is separated from the waterways below the settling water outlet and the filter paper inflow water to form a path through which the backwash water supplied for washing the filter paper can be discharged water treatment equipment.
The method of claim 1,
A water treatment device having a larval filtration facility further comprising a; a walkway portion installed higher than the water level of the settling tank outflow water along the settling tank outflow channel to form a walking path for administrator access to the trough filter.
4. The method of claim 3,
The walkway unit,
A main walkway installed along the sedimentation basin effluent channel with a width smaller than the width of the sedimentation basin effluent channel;
A plurality of approach walkways branched in the weir direction from the main walkway and installed to form a walking path on both sides of each Trough filter,
A water treatment device with a larval filtration facility, characterized in that it consists of an entrance and exit stairs installed on both sides of the main walkway to connect the main walkway inside the sedimentation basin effluent with the outside of the sedimentation basin effluent.
5. The method of claim 4,
The main walkway and the plurality of approach walkways,
Wall mounts attached to and fixed to the wall of the water channel side wear and the wall of the intermediate partition facing the same;
A scaffolding frame composed of scaffolding supports supported in a state spaced apart from the water surface of the settling basin runoff by the wall fixings;
A water treatment device equipped with a larval filtration facility, characterized in that it consists of a scaffold installed on the scaffold frame.
The method of claim 1,
The trap filter is
A filter case formed in an open basket structure with an upper surface, a lower surface, and an open side portion, and attached to a wall surface of the wear at least lower than the lower end of the wear hole through a wall fixing bar and a draw bar;
Water treatment device with larval filtration facility, characterized in that it includes a bag filter consisting of a bag-shaped mesh with a handle that is inserted into the filter case through the upper opening of the filter case and fixed or separated from the filter case .
7. The method of claim 6,
A water treatment device with a larval filtration facility, characterized in that perforated plates are installed on each of the open side and lower surfaces of the filter case except for the upper surface.
7. The method of claim 6,
A splash guard that surrounds the outlet of the wear hole and is coupled to cover the trough filter from the top to isolate the space between the wear hole and the trough filter from the outside to prevent splashing of water; Equipped with water treatment equipment.
9. The method of claim 8,
The splash guard is made of a transparent or translucent material so that you can see the inside,
A water treatment device with a larval filtration facility, characterized in that it is detachably coupled to a rail stand installed on the wall of the wear around the wear hole outlet in a slide manner.

Images