KR102034148B1 - Deep-bed Sludge collector including coagulation & concentration and high turbidity wastewater treatment system containing the same - Google Patents

Abstract

The present invention relates to a sludge collecting apparatus of a deep structure including an aggregating and concentrating function and a high-turbidity wastewater treatment system including the same, and more particularly, to a sludge collecting apparatus, which equally applies a precipitation tank and a concentration tank to high-turbidity wastewater in an integrated type with respect to a solid load value to increase the precipitation efficiency, and adds a function of the concentration tank to perform stable composite treatment. To this end, the sludge collecting apparatus of the present invention comprises: a treatment water tank having an upper precipitation space and a lower concentration space; a scraper installed on an inner bottom of the treatment water tank; a driving mechanism for moving the scraper; and a feed well installed at the center of an upper end of the treatment water tank. The feed well includes: an outer container having a wastewater inlet horizontally formed at a position away from the center thereof; an inner container disposed inside the outer container, and including an outer peripheral surface spaced apart from an inner peripheral surface of the outer container while facing the same; a plurality of partitions disposed at a lower portion of the inner container, and vertically spaced apart from each other; a support plate spaced apart from a lower portion of the outer container; and a plurality of radial inclined plates for connecting the support plate and the outer container, disposed to be distributed along the circumference of the outer container, and installed to be inclined clockwise or counterclockwise with respect to the center of the feed well.

Description

Deep-bed Sludge collector including coagulation & concentration and high turbidity wastewater treatment system containing the same

The present invention relates to a deep sludge collector for effective treatment of high turbidity wastewater having a high solids loading value, and a high turbidity wastewater treatment system including the same. Sludge collector of deep structure including agglomeration and condensation function, which enables stable operation through effective flocculation and sedimentation of suspended solids contained in the high turbidity wastewater introduced into the sedimentation space, and high turbidity wastewater treatment including the same It's about the system.

Wastewater is water that can not be used as it contains liquid, solid, and gaseous wastes. Industrial wastewater is generated by various industrial activities. Organic wastewater (BOD, COD), suspended solids (SS) In addition to general pollutants such as nitrogen, phosphorus, and other harmful substances such as toxic organic substances and heavy metals.

If the wastewater is discharged as it is, it causes serious environmental pollution. Therefore, the pollutants contained in the wastewater are separated, decomposed and stabilized, or converted into harmless substances so that the wastewater does not pollute the natural environment such as rivers. There is this.

On the other hand, the general small-scale wastewater treatment process excludes biological treatment process and is composed of gravity mixed flocculation + sedimentation method + filtration + concentration tank and dissolved air flotation separation device. When flocculant (chemical) is added to the wastewater containing suspended solids and stirred constantly, floc is formed, and the floc formed wastewater flows into the sedimentation tank to precipitate the floc and the treated water is discharged to the upper part. After concentrating the concentration in a concentration tank using a pump again, the storage tank is dehydrated after storage, and the treated water discharged to the top is finally treated through a filtration process.

On the other hand, wastewater generated by DAF + membrane effluent from the seawater desalination process and wastewater generated by membrane effluent from the purified water treatment process have a high concentration reference value based on the flow rate of the raw water, and such high-purity wastewater mixes / coagulates chemicals and precipitates. In this case, when designing with a general sedimentation residence time or surface load value, the sludge rises due to the flotation of a large amount of sludge despite the gravity sedimentation.

In addition, there is a problem that the sludge draw amount is increased and the inflow into the thickening tank has a great adverse effect on the operation of the after-stage process.

On the other hand, it is possible to effectively treat wastewater by satisfying all conditions such as settling tank and concentration tank residence time, surface load, and solid load, but it is difficult to cope because the concentration of influent wastewater varies from 50 to 1,000 ppm or more. Since the coagulant (drug) is added and the additional drug is added in the wastewater treatment process, there is a problem that the operation of the fiber filtration and general filtration in the rear stage also causes difficulties in operation.

Published Patent Publication 10-2006-0114709 (Nov. 2006)

The present invention has been made in consideration of the above problems, and an object of the present invention is to increase the settling efficiency and the function of the thickening tank by applying the same type of sedimentation tank and the thickening tank in the same way based on the solid load value of the high turbidity wastewater, which enables stable complex treatment. It is to provide a deep sludge collector and a high turbidity wastewater treatment system including the cohesive concentration function.

The present invention to achieve the object as described above and to perform the problem for eliminating the conventional defects is formed to extend in the vertical direction to form a structure in which the upper sedimentation space and the lower enrichment space is arranged up and down, the treatment water at the upper end Discharged ware is formed, the lower center portion treatment tank consisting of a discharge port is formed discharged sludge and concentrated sludge; A scraper for moving the sludge settled and concentrated on the bottom to an outlet while moving along a circular trajectory at the inner bottom of the treatment tank; A drive mechanism installed in a vertical position in the center of the treatment tank and connected to the scraper to move the scraper; And it is installed in the upper center of the treatment tank to receive the waste water to be treated, to promote the flocculation of suspended solids by the flocculant, to distribute the waste water evenly in all directions, and to separate the internal space of the treatment tank into sedimentation space and enrichment space A feed well having a structure; wherein the feed well is formed of a cylinder having a vertical posture, the outer cylinder formed of a horizontal posture at a position where the wastewater inlet from which the raw water is introduced is out of the center; It is disposed inside the outer cylinder, including the outer circumferential surface facing the inner circumferential surface of the outer cylinder to form a turning space to induce flow rate reduction and dispersion through the turning of the waste water with the outer cylinder, and enters the turning space beyond the filling waste water An inner cylinder installed so that an upper end thereof is lower than an upper end of the outer cylinder so as to flow into the inner side; It is disposed in the lower portion of the inner cylinder to form a flow path for flowing the wastewater flowing into the inner cylinder to the bottom, and the active contact between the flocculant and the suspended solids while repeating the flow to the central portion in the process of the wastewater flowing downward. A plurality of diaphragms disposed spaced apart from each other up and down to induce a flow path that promotes flocculation of suspended solids; A support plate spaced apart from the lower portion of the outer cylinder to distribute horizontally the wastewater discharged to the lower portion of the outer cylinder through the flow path formed by the plurality of diaphragms and the outer cylinder; And connecting the support plate and the outer cylinder, disposed to be distributed along the circumference of the outer cylinder, and installed to have a posture inclined clockwise or counterclockwise relative to the center of the feedwell of the waste water distributed in the horizontal direction by the support plate It provides a deep sludge collector with a cohesive concentration function, characterized in that consisting of; a plurality of radial inclined plate to slow the flow rate and induce flocculation.

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Meanwhile, in the sludge collector of the deep structure including the coagulation-concentrating function, the plurality of diaphragms may close the turning space and the lower end of the inner cylinder and discharge the wastewater introduced into the inner cylinder downward. A first plate formed of a central portion; A second plate disposed below the first plate and spaced apart from the first plate, the second plate including a circumference spaced from an inner circumferential surface of the outer cylinder to form a ring-shaped second flow path together with the outer cylinder; And a third plate disposed below the second plate to be spaced apart from the second plate and having a third flow path formed at a central portion thereof.

Meanwhile, in the deep sludge collector including the flocculation condensation function, wastewater flowing into the inner cylinder over the inner cylinder and flowing into the inner cylinder while generating a vortex while colliding with the wastewater turning in the swing space increases the flocculation efficiency. A plurality of first baffles to be uniformly introduced in the circumferential direction of the; further comprising, the plurality of first baffles are arranged to be distributed along the circumference of the upper end of the inner cylinder, it may be made of a plate having a vertical attitude.

Meanwhile, in the sludge collector of the deep structure including the coagulation-concentrating function, an inclined plate that induces precipitation of the fine flocks rising together with the treated water may be further installed at the upper end of the treated water tank.

Meanwhile, in the sludge collector of the deep structure including the coagulation concentration function, the scraper includes one to three scrapers installed at the lower end of the scraper arm, and the scraper arm has a distance of at least 5% of the radius of the treatment tank. It is preferable to be spaced apart from the bottom of the treatment tank.

The present invention also the sludge collector; A first stirring tank for mixing flocculant in the wastewater to be supplied to the sludge collector to induce the formation of flocs; A storage tank for storing the sludge discharged from the sludge collector for a period of time; Filter paper discharged by finally filtering the treated water discharged from the sludge collector; And a dehydrator for dewatering the sludge discharged from the storage tank. It provides a high turbidity wastewater treatment system including a sludge collector of a deep structure including a cohesive concentration function.

On the other hand, in the high turbidity wastewater treatment system comprising a deep sludge collector including the flocculation concentration function, when the salinity concentration of the sludge discharged from the sludge collector is more than a predetermined reference value, to provide a sludge discharged from the sludge collector After receiving and mixing with fresh water to lower the salt concentration of the sludge, dilute concentration tank to discharge to the storage tank; may be further included.

On the other hand, in a high turbidity wastewater treatment system including a deep sludge collector containing the flocculation concentration function, the dilution concentrate tank may be configured of the same structure as the sludge collector.

On the other hand, in the high turbidity wastewater treatment system including a deep sludge collector containing the flocculation concentration function, the decanter to control the concentration of the sludge by controlling the level of the storage tank through the control of the treated water discharged from the storage tank May be further installed in the reservoir.

On the other hand, in the high turbidity wastewater treatment system including a deep sludge collector containing the flocculation concentration function, the filter paper comprises a multi-layered media support layer consisting of filter sacks of different sizes, the media support layer is the most A first support layer comprising a first filter sari having a larger particle size, a second support layer consisting of a second filter sari having a smaller particle size than the first filter sari, and a third filter sari having a smaller particle size than the second filter sari And a fourth support layer comprising a third support layer and a fourth filter yarn having a particle diameter smaller than the third filter yarn, wherein the first support layer, the second support layer, the third support layer, the fourth support layer, the third support layer, and the first support layer are formed from the bottom. The support layer may be formed in a stacked structure.

On the other hand, in the high turbidity wastewater treatment system including a deep sludge collector containing the flocculation condensation function, the sludge interface in the sludge collector is detected by a sensor to control the extraction of sludge, the turbidity of the treated water sensor Control panel that monitors the treated water quality by detecting the water and automatically performs the backwash on the filter paper according to the treated water quality, and controls the dehydration operation time by controlling the water level of the reservoir through the control of the decanter provided in the storage tank. May be further included.

According to the present invention having the above characteristics, the sedimentation tank for the treatment of high turbidity wastewater consists of a deep structure formed in one treatment tank, the sedimentation space for inducing the sludge flocculation and precipitation, and the concentration space for inducing the concentration of sludge And there is an effect that can minimize the site area required for the composition of the thickener.

In addition, by implementing coagulation precipitation and concentration in one tank, it is possible to discharge stable treated water and high concentration sludge, and there is an effect of reducing the maintenance cost by simplifying the process.

In addition, by maintaining a constant sludge concentration, there is an effect that the stable operation of the dehydrator and the ability to exhibit a certain performance.

In addition, the backwashing operation using air and water prevents the structure of the media support layer from being disrupted due to the disturbance of the media support layer, thereby enabling a stable backwashing operation. Therefore, there is no frequent replacement or blockage of the media and the treatment water discharged from the filter paper is prevented. It is effective to keep the water quality stable.

1 is a cross-sectional view of a sludge collector according to a preferred embodiment of the present invention,
2 is a plan view of a sludge collector according to a preferred embodiment of the present invention,
3 is a perspective view showing a portion of a feed well cut in accordance with a preferred embodiment of the present invention;
4 is a front view of a feedwell according to a preferred embodiment of the present invention;
5 is a plan view of a feedwell according to a preferred embodiment of the present invention;
6 is an exemplary view showing a path in which raw water flows in a feed well according to a preferred embodiment of the present invention;
7 is a cross-sectional view of the sludge collector consisting of a slope plate further installed on top of the treatment tank according to the present invention,
8 is a structural diagram of a high turbidity wastewater treatment system according to the present invention,
9 is a structural diagram of a decanter according to the present invention;
10 is a cross-sectional view of the filter paper according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a cross-sectional view of a sludge collector according to a preferred embodiment of the present invention, Figure 2 is a plan view of a sludge collector according to a preferred embodiment of the present invention, Figure 3 is a portion of a feed well according to a preferred embodiment of the present invention 4 is a front view of a feedwell according to a preferred embodiment of the present invention, FIG. 5 is a plan view of a feedwell according to a preferred embodiment of the present invention, and FIG. 6 is a preferred embodiment of the present invention. Exemplary diagram showing a path in which the raw water flows in the feedwell according to.

The sludge collector 100 according to the present invention is to allow the sludge agglomeration, sedimentation, and concentration processes to be stably performed in one treatment tank 110. The treatment tank 110, the scraper 120, and the driving mechanism ( 130, the feed well 140.

The treatment tank 110 has a structure in which the upper sedimentation space (S1) and the lower concentration space (S2) are arranged up and down, that is, the precipitation space (S1) is formed on the upper side, the concentration space below the precipitation space (S1) It is made of a deep structure extending in the vertical direction so that the (S2) is formed, the upper end portion is formed with the wear 111 is disposed the treated water, the lower end is formed with an outlet 112 for discharging the precipitated and concentrated sludge It consists of.

On the other hand, the bottom of the treatment tank 110 is formed in a structure inclined downward toward the center portion, the outlet 112 is formed in the center of the bottom of the treatment tank 110.

Therefore, the sludge concentrated at the bottom of the treatment tank 110 is collected at the center by the scraper 120 and is discharged through the outlet 112.

The scraper 120 is to move the sludge concentrated in the bottom of the treatment tank 110 to the discharge port 112, to move the sludge while moving along the circular trajectory on the inner bottom of the treatment tank 110. do.

That is, the scraper 120 according to the present invention is composed of one to three scrapers 120 are installed at the lower end of the scraper arm 121 of the truss structure according to the size of the treatment tank 110, a plurality of scraper arms A 121 is disposed in a radial structure with respect to the driving mechanism 130 so that the scraper arm 121 rotates by the driving mechanism 130 to move the scraper 120 along the circular trajectory.

On the other hand, the scraper arm 121 is a distance (D) of at least 5% of the radius (R) of the treatment tank (110) for the stable movement of the sludge while preventing the resuspension of the sludge deposited and concentrated on the bottom of the treatment tank (110) ) Is spaced apart from the bottom of the treatment tank (110).

For example, assuming that the radius of the treatment tank 110 is 5000 mm, the scraper arm 121 is installed to have a structure spaced apart from the bottom of the treatment tank 110 at a distance of 250 mm or more.

On the other hand, when the scraper arm 121 is too far from the treatment tank 110, as the height of the scraper 120 is relatively high, a large load is applied to the scraper 120 to damage the scraper 120 or the collection of sludge Since there is a problem that is not smooth, the scraper arm 121 is preferably installed at a distance (D) of 5% or more and 10% or less with respect to the radius (R) of the treatment tank (110).

In addition, each scraper 120 has a curved curved structure, is installed to have an obliquely inclined posture rather than orthogonal to the scraper arm 121 is in close contact with the bottom of the treatment tank 110 made of a conical structure. While moving along a circular trajectory.

The drive mechanism 130 is installed in a position perpendicular to the center of the treatment tank 110, and is connected to the scraper 120 to move the scraper 120, a posture perpendicular to the center of the treatment tank 110. It is installed to have a rotatable structure as a rotating shaft 131 connected to a plurality of scraper arms 121, and the motor 132 is connected to the rotating shaft 131 to rotate the rotating shaft 131.

The feed well 140 receives wastewater flowing into the treatment tank 110 to induce the formation and flocculation of the floc, and the internal space of the treatment tank 110 to the precipitation space S1 and the concentration space S2. By forming the flocculation and flocculation and sedimentation of the floc at the upper end of the treatment tank 110, the concentration of sludge can be made at the lower end of the treatment tank 110, the treatment tank 110 to receive the waste water to be treated It is installed in the upper center of the center, promotes the flocculation of suspended solids by the flocculant, distributes the waste water evenly in all directions, and separates the internal space of the treatment tank 110 into sedimentation space (S1) and concentrated space (S2). It is configured to have a structure.

More specifically, the feed well 140 according to the preferred embodiment of the present invention is composed of an outer cylinder 141, an inner cylinder 142, a diaphragm 143, a support plate 144, and a radial inclined plate 145.

The outer cylinder 141 is composed of a cylinder in a vertical posture, it is installed to be fixed to the upper end of the treatment tank (110).

The outer cylinder 141 is formed with a waste water inlet 1411, the waste water inlet 1411 is connected to the raw water supply pipe (P) is configured to receive the raw water mixed with the flocculant.

On the other hand, the wastewater inlet 1411 is formed in a horizontal position to be connected to the outer cylinder 141 at a position away from the center of the outer cylinder 141, so that the raw water flowing into the outer cylinder 141 through the wastewater inlet 1411. Configured to form a pivoting flow.

The inner cylinder 142 is made of a cylinder of a vertical posture having a diameter and a lower height than the outer cylinder 141, it is installed to be fixed to the inner upper end of the outer cylinder (141).

More specifically, the inner cylinder 142 is disposed inside the outer cylinder 141 such that the outer circumferential surface thereof is spaced apart from the inner circumferential surface of the outer cylinder 141, and thus disposed between the inner cylinder 142 and the outer cylinder 141. There is a swing space (S) is formed to be uniformly distributed in the circumferential direction of the feed well 140 while the wastewater flowing into the outer cylinder 141 through the wastewater inlet 1411 is reduced and the flow rate is reduced.

In addition, the upper end of the inner cylinder 142 is installed or formed so as to be positioned lower than the upper end of the outer cylinder 141, so that the waste water filling while turning in the turning space (S) is beyond the upper end of the inner cylinder 142 inner cylinder 142 Flows into).

On the other hand, the wastewater flowing into the interior of the inner cylinder 142 beyond the upper end of the inner cylinder 142 to be introduced more uniformly along the circumference of the inner cylinder 142, and collides with the waste water turning in the turning space (S) While the first baffle (1421) to induce active contact of the flocculant and suspended solids by promoting the formation of the floc by generating a vortex may be further installed on the upper end of the inner cylinder (142).

At this time, the first baffle (1421) is arranged to be distributed along the circumference of the upper end of the plurality of inner cylinder 142, each of the first baffle (1421) is protruded to the inside of the inner cylinder 142 and outward It consists of a vertical plate having a structure in which a portion of the top protrudes.

The diaphragm 143 gathers to the central part in the process of flowing wastewater flowing into the inner cylinder 142 and repeats the flow spreading in all directions while inducing active contact between the flocculant and the suspended solids to promote flocculation of the suspended solids. Forming the furnace, it is configured to be spaced up and down spaced up and down of the plurality of diaphragm 143 in the lower portion of the inner cylinder 142.

Meanwhile, the diaphragm 143 according to the preferred embodiment of the present invention includes a first plate 1431, a second plate 1432, and a third plate 1433.

The first plate 1431 is made of a plate installed in the lower end of the inner cylinder 142 to close the lower end of the turning space (S) and the inner cylinder 142, the waste water flowing into the inner cylinder 142 inside the inner cylinder 142 The first flow path (1434) to be discharged down through the center portion of the) is configured to be formed in the center portion.

On the other hand, since the rotating shaft 131 constituting the drive mechanism 130 passes through the first flow path 1434, the first flow path 1434 is a stable flow of waste water in consideration of the diameter of the rotating shaft 131. It is formed sufficiently large compared to the diameter of the rotating shaft 131 to be able to.

The second plate 1432 is disposed below the first plate 1431 at a lower portion of the first plate 1431, and includes a periphery spaced apart from an inner circumferential surface of the outer plate 141. And a second flow path 1435 in the form of a ring.

The second plate 1432 is made of a plate having a diameter smaller than the inner diameter of the outer cylinder 141, and is disposed around the second plate 1432 in a radial structure on the basis of being in the middle of the second plate 1432. The second baffle 1437 is fixed to the outer cylinder 141.

At this time, the second baffle (1437) is made of a plate of the vertical posture, it is installed to connect the second plate (1432) and the outer cylinder 141 has a function of fixing the second plate (1432) to the outer cylinder (141) The second baffle 1435 is uniformly distributed around the circumference of the second plate 1432 to provide a function of uniformly dispersing the wastewater in all directions.

The third plate 1433 is disposed to be spaced apart from the second plate 1432 at the lower portion of the second plate 1432, and has a third flow path 1434 having a central flow of wastewater downward. It is composed.

On the other hand, the third plate 1433 is installed to be fixed to the outer cylinder 141 by fixing means such as welding while the circumference is in close contact with the inner surface of the outer cylinder 141.

According to the first, second, and third plates 1431, 1432, and 1433 as described above, the wastewater flowing into the inner cylinder 142 is collected while passing through the first flow path 1434 formed in the first plate 1431. After passing through the first flow path (1434) and spreads in all directions, the second flow path (1435) formed between the second plate (1432) and the outer cylinder 141, and passes through the second flow path (1435) The wastewater is collected again while passing through the third flow path 1434 formed in the third partition 1433.

Thus, by using the first, second, third partitions (1431, 1432, 1433) to collect the waste water to the center of the feed well 140 and to repeat the flow spreading in all directions to induce active contact between the flocculant and the suspended solids of the floc It is possible to promote the formation.

The support plate 144 is formed of a plate material spaced apart from the lower portion of the outer cylinder 141 to distribute horizontally the wastewater discharged to the lower portion of the outer cylinder 141 through the third flow path (1436).

The support plate 144 is fixed to the lower end of the outer cylinder 141 via the radial inclined plate 145.

The radial inclined plate 145 is to induce flocculation and rise of wastewater, and the radial inclined plate 145 is configured such that a plurality of radial inclined plates 145 are distributed along the circumference of the base plate 144.

On the other hand, each of the radial inclined plate 145 is connected to the base plate 144 and the outer cylinder 141, but is composed of a plate inclined to have a posture inclined clockwise or counterclockwise relative to the center of the feed well 140 do.

Meanwhile, FIGS. 3 and 4 have a structure in which the upper end is inclined clockwise and the vertical part 1451 is bent at the upper end, and the vertical part 1451 is fixed to the outside of the outer cylinder 141, and a plurality of radial inclined plates are provided. A structure in which 145 is connected to each other and bound by a circular connecting ring 1452 is shown.

Sedimentation space (S1) and the concentrated space (S2) is divided by a support plate 144 and a plurality of radial inclined plate 145 configured as described above, the upper side of the precipitation space based on the support plate 144 and the radial inclined plate (145) It is used as (S1), the lower side is utilized as the enrichment space (S2).

Wastewater flowing into the sludge collector 100 configured as described above is subjected to the following process to precipitate and concentrate the sludge.

The wastewater flowing into the feed well 140 through the wastewater inlet 1411 is first introduced into the turning space S and the flow rate is reduced while turning, and goes beyond the upper end of the inner cylinder 142 to the inside of the inner cylinder 142. Inflow.

On the other hand, when the wastewater reaches the upper end of the inner cylinder 142 while turning in the turning space (S), the circulating wastewater collides with the first baffle (1421) protruding outward of the inner cylinder 142, and the vortex is partially generated. In addition, the formation of the floc is promoted as the contact between the flocculant and the floating material becomes more active due to the vortex, and the plurality of first baffles 1421 uniformly distributed around the circumference of the inner cylinder 142 has the circumference of the inner cylinder 142. This leads to a uniform inflow of wastewater.

Through this process, the wastewater flowing into the inner cylinder 142 is collected along the first, second and third flow paths 1434, 1435 and 1436 formed by the first, second and third partitions 1431, 1432 and 1433. Repeating the spreading process further promotes flocculation.

On the other hand, the waste water discharged to the lower portion of the outer cylinder 141 through the third flow path (1436) is dispersed in the horizontal direction by the support plate 144, the treatment tank 110 through the space between the radial inclined plate (145) It is discharged into the inside of, wherein the flow rate of the waste water by the radial inclined plate 145 is further slowed down.

As the wastewater flows, the flocs included in the wastewater are precipitated while falling downward by collision with the radial inclined plate 145, and the wastewater flows on the surface of the radial inclined plate 145 and flows through the upper portion of the treatment tank 110. Flows to

As described above, the feed well 140 according to the present invention divides the inside of the treatment tank 110 into a precipitation space S1 and a concentration space S2 by using the structures of the support plate 144 and the radial inclined plate 145. Using the turning space S, the first, second and third flow paths (1434, 1435, 1436), the support plate 144 and the radial inclined plate 145, the radial inclined plate 145 is finally reduced in a state in which the flow velocity of the wastewater is sufficiently slowed. By inducing the precipitation of the floc by using, it is possible to improve the precipitation efficiency of the sludge.

On the other hand, due to the precipitation of the floc is concentrated in the bottom of the treatment tank 110, the sludge is accumulated, the treatment tank 110 according to the present invention is formed in the precipitation space (S1) at the top and the concentrated space (S2) is formed at the bottom Since the deep structure has a deeper depth than conventional sedimentation tanks or thickening tanks, the consolidation effect of the sludge deposited on the bottom of the treatment tank 110 can be increased to induce the concentration of sludge more effectively, and accommodate a large amount of sludge. You can do it.

As such, the sludge collector 100 according to the present invention increases the sedimentation efficiency of the sludge and can stably accommodate a large amount of sludge, thereby allowing stable treatment even when inflow of the high turbid water wastewater.

Figure 7 shows a cross-sectional view of the sludge collector consisting of a slope plate is further installed on top of the treatment tank according to the present invention.

In the sludge collector configured as described above, the inclined plate 150 which induces the flotation of the flotation rising to the upper portion of the treatment tank 110 to reduce the amount of the floc discharged from the treatment tank 110 is the upper end of the treatment tank 110. Can be installed in more.

On the other hand, the inclined plate 150 is composed of a plurality of plates having a posture inclined inclined in a predetermined direction are spaced apart from each other by a predetermined interval.

8 is a structural diagram of a high turbidity wastewater treatment system according to the present invention, FIG. 9 is a structural diagram of a decanter according to the present invention, and FIG. 10 is a sectional view of a filter paper according to the present invention.

The high turbidity wastewater treatment system according to the present invention includes a sludge collector 100, a first stirring tank 200, a storage tank 300, a filter paper 400, and a dehydrator 500.

Since the configuration of the sludge collector 100 has already been described with reference to FIGS. 1 to 7, a description of the configuration of the sludge collector 100 is omitted.

On the other hand, the sludge collector 100 according to the present invention has a high height, including the sedimentation space (S1) and the concentrated space (S2) the treated water discharged from the sludge collector 100 through the natural oil filter paper 400 Since it can be moved to, the pump or the collecting tank for transferring the treated water discharged from the sludge collector 100 to the filter paper 400 is not required.

The first stirring tank 200 is to supply to the sludge collector 100 in a state in which a coagulant is added to the waste water supplied to the sludge collector 100 and mixed, the sludge collector 100 of the sludge collector 100 Located at the front end.

On the other hand, the first stirring tank 200 is made to store a certain amount of wastewater, including a stirrer 210 for dispersing the supplied flocculant evenly in the wastewater, and a chemical supply facility 220 for the input of the flocculant It consists of.

The storage tank 300 is to store the sludge discharged from the sludge collector 100 for a period of time, to be introduced into the dehydrator 500 to agitate the sludge during discharge for dewatering the sludge to uniform the concentration of the sludge. It comprises a stirrer 310 and a decanter 320 for adjusting the concentration of the sludge.

At this time, the decanter 320 is to further control the concentration of the sludge through the control of the treated water discharged from the storage tank 300, so as to discharge the treated water from the storage tank 300 while floating on the water surface of the storage tank 300. Is made, the discharge pipe 321 extending from the decanter 320 is provided with a valve 322 for controlling the discharge of the treated water.

The decanter 320 controls the water level of the storage tank 300 while discharging the treated water from the storage tank 300 through the control of the valve 322, and the concentration of the sludge can be adjusted by adjusting the water level.

The filter paper 400 is to finally filter and discharge the treated water discharged from the sludge, the lower collecting device 410 is installed at the lower end of the filter paper 400, the filter medium support layer 420 made of a filter sari and A filtration layer 430 made of sand is installed.

As described above, the lower collecting device 410, the filter medium support layer 420, and the filter layer 430 have the same configuration as that of the general filter paper, but the filter medium support layer 420 of the filter paper 400 according to the present invention has different sizes. Consists of a multi-layered filter medium support layer 420 made of a filter sari, the back-loading medium support layer is formed on the upper end is configured to prevent the filter medium support layer 420 is disturbed during backwashing using air and water.

More specifically, the media support layer 420 of the filter paper 400 according to the present invention is the first support layer 421 consisting of the first filter saree of the largest particle diameter, and the second filter saree having a smaller particle size than the first filter sachet. A fourth support layer 422 formed of a second support layer 422, a third support layer 423 made of a third filter sari having a smaller particle size than the second filter sari, and a fourth filter sari having a particle diameter smaller than the third filter sari It comprises a support layer 424, the first support layer 421, the second support layer 422, the third support layer 423, the fourth support layer 424, the third support layer 423, the first from the bottom The support layer 421 is formed in a sequentially stacked structure so that the third support layer 423 and the first support layer 421 at the upper end may form a reverse loading medium support layer.

For reference, the particle size of the first filter sari is 10 ~ 20mm. The particle size of the No. 2 filter sari is 5 ~ 10mm, the particle size of the No. 3 filter sari is 3 ~ 5mm, and the particle size of the No. 4 filter sari is 2 ~ 3mm.

According to such a media support layer 420, the third support layer 423 and the first support layer 421 made of a filter grain of a relatively large particle diameter provides a function of restraining while pressing the fourth support layer 424 from above, The filter constituting the fourth support layer 424 may be prevented from being lost or disturbed while being disturbed during backwashing. In particular, the filter support layer 420 may be prevented even when backwashing using air and water at the same time. The structure can be kept stable.

In addition, the filter layer 430 of the filter paper 400 according to the present invention has a large particle diameter of 1 to 2 mm and forms a deep filter layer 430 with a sufficient height of 1.5 m or more, so that the filter medium is subjected to simultaneous backwashing. It is configured to prevent the loss of sludge, to detain a large amount of sludge, to lengthen the filtration duration, and to eliminate the loss of turbidity.

On the other hand, the depth of the filtration layer 430 may be selected in the range of 1.15 ~ 2.5m based on the media particle size.

The dehydrator 500 is configured to receive the sludge discharged from the storage tank 300 to lower the water content of the sludge through the dehydration operation.

On the other hand, the sludge dewatering apparatus of various structures is already known, and since the dehydrator 500 according to the present invention can be configured using a known sludge dehydrating apparatus, a detailed description of the dehydrator 500 will be omitted.

In the high turbidity wastewater treatment system configured as described above, when the salinity concentration of the sludge discharged from the sludge collector 100 is more than a predetermined reference value, by receiving the sludge discharged from the sludge collector 100 to lower the salt concentration of the sludge A dilution concentrate tank 600 for discharging to the storage tank 300 may be further included.

The dilution concentrator 600 lowers the salt concentration of the sludge through the mixing of sludge and fresh water discharged from the sludge collector 100, such a dilution concentrator 600 is configured in the same structure as the sludge collector 100 described above. Can be.

On the other hand, if the salt concentration of the sludge is too high, the concentration of the sludge can be lowered more effectively through additional mixing of the drug, for this purpose, the input and mixing of the chemical into the pipe connecting the sludge collector 100 and the dilute concentration tank 600 A facility for carrying out this may be further installed.

On the other hand, a transport pump 700 for smoothly transporting the sludge discharged from the sludge collector 100 to the dilution concentrator 600 or the storage tank 300 is installed in the discharge pipe extending from the sludge collector 100, the transfer pump The sludge conveyed by 700 is selectively supplied to the storage tank 300 or the dilute concentration tank 600 by the control of a valve not shown installed in the conveying pipe.

That is, the transfer pipes extending from the transfer pump 700 are divided into two and connected to the storage tank 300 and the dilute concentration tank 600, respectively, and the sludge discharged from the dilute concentration tank 600 flows into the storage tank 300. The conveying piping is configured to be possible.

On the other hand, the control panel 800 for the automatic control of the high turbidity wastewater treatment system according to the present invention and the appropriate control according to the state of the sludge and the treated water may be further included.

The control panel 800 is made of a built-in program for controlling the high turbidity wastewater treatment system in a set order and method, but the sludge interface in the sludge collector 100 can be detected through a sensor to draw the sludge at an appropriate time. A function of driving the scraper 120 and the transfer pump 700 so that the water quality of the treated water discharged from the filter paper 400 is sensed through a sensor to backwash the filter paper 400 if the treated water quality is insufficient. It comprises a function of controlling the dehydration operation time by adjusting the water level of the storage tank 300 through the control of the decanter 320 provided in the storage tank (300).

Reference numeral 910 of FIG. 8 denotes a filtered water tank for finally filtering and discharging the treated water discharged from the filter paper, and 920 denotes an air backwash system.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

<Explanation of symbols for the main parts of the drawings>
100: sludge collector 110: treatment tank
111: weir 112: outlet
120: scraper 121: scraper arm
130: drive mechanism 140: feedwell
141: outer cylinder 1411: wastewater inlet
142: inner cylinder 1421: first baffle
143: plate 1431: first plate
1432: second plate 1433: third plate
1434: First flow path 1435: Second flow path
1436: 3rd flow path 144: base plate
145: radial inclined plate 150: inclined plate
200: first stirring tank 300: storage tank
320: decanter 400: filter paper
420; Media support layer 421: first support layer
422: second support layer 423: third support layer
424: fourth support layer 500: dehydrator
600: dilution thickener 800: control panel

Claims (12)

The upper sedimentation space (S1) and the lower enrichment space (S2) is formed to extend in the vertical direction to form a structure arranged up and down, the upper portion is formed a ware 111 for discharging the treated water, the lower center portion sedimentation and concentration A treatment tank 110 in which an outlet 112 through which the sludge is discharged is formed;
A scraper 120 for moving the sludge settled and concentrated on the bottom to the outlet 112 while moving along the circular trajectory at the inner bottom of the treatment tank 110;
A drive mechanism 130 installed in a vertical position at the center of the treatment tank 110 and connected to the scraper 120 to move the scraper 120; And
It is installed in the upper middle part of the treatment tank 110 to receive the treatment target wastewater, promotes flocculation of suspended solids by the flocculant, distributes the wastewater evenly in all directions, and divides the internal space of the treatment tank 110 into the settling space ( Consists of; feed well 140 having a structure that is separated into S1) and enrichment space (S2),
The feed well 140,
Outer cylinder 141 made of a cylinder in a vertical posture, consisting of a horizontal posture in which the wastewater inlet 1411 into which the raw water flows is out of the center;
Is disposed inside the outer cylinder 141, including the outer peripheral surface spaced apart facing the inner circumferential surface of the outer cylinder 141 and the turning space (S) to induce a flow rate reduction and dispersion through the turning of the waste water with the outer cylinder 141 An inner cylinder 142 installed at an upper end thereof to be lower than an upper end of the outer cylinder 141 so as to flow into the turning space S and flow into the inside of the filled waste water;
It is disposed in the lower portion of the inner cylinder 142 to form a flow path for flowing the wastewater flowing into the inner cylinder 142 to the lower, and the flocculant and the flocculant while repeating the flow to the central portion in the process of the waste water flows downward A plurality of diaphragms 143 arranged to be spaced apart from each other vertically to form a flow path for inducing active contact of the suspended solids to promote flocculation of the suspended solids;
Support plates disposed spaced below the outer cylinder 141 to distribute horizontally the wastewater discharged to the lower portion of the outer cylinder 141 through the flow path formed by the plurality of diaphragm 143 and the outer cylinder 141 ( 144); And
The base plate 144 and the outer cylinder 141 are connected to each other, and are disposed to be distributed along the circumference of the outer cylinder 141 and installed to have a posture inclined clockwise or counterclockwise with respect to the center of the feed well 140. And a plurality of radial inclined plates 145 for slowing the flow rate of the wastewater dispersed in the horizontal direction by the support plate 144 and inducing flocculation; and a sludge collector having a cohesive concentration function. delete The method according to claim 1,
The plurality of diaphragms 143,
The first plate made of a central portion of the first flow path (1434) to close the lower end of the turning space (S) and the inner cylinder 142, the wastewater flowing into the inner cylinder 142 is discharged downward ( 1431);
The lower space of the first plate (1431) is disposed so as to be spaced apart from the first plate (1431), and comprises a circumference spaced from the inner circumferential surface of the outer cylinder 141 and the ring-shaped agent together with the outer cylinder (141) A second plate 1432 forming a second flow path 1435; And
A third plate 1433 disposed at a position spaced apart from the second plate 1432 at a lower portion of the second plate 1432, and having a third flow path 1434 formed at a central portion thereof; Deep sludge collector with agglomerated thickening function. The method according to claim 1,
In addition to increasing the flocculation efficiency by generating vortices while colliding with the wastewater turning in the turning space S, the wastewater introduced into the inner cylinder 142 beyond the inner cylinder 142 in the circumferential direction of the inner cylinder 142. A plurality of first baffles (1421) to be uniformly introduced; further comprising,
The plurality of first baffles (1421) is disposed to be distributed along the circumference of the upper end of the inner cylinder (142), the sludge collector of the deep structure with a cohesive concentration function, characterized in that consisting of a plate having a vertical attitude. The method according to claim 1,
The sludge collector of the deep structure with agglomeration and concentration function, characterized in that the inclined plate to induce the precipitation of the fine floccule rising with the treated water at the upper end of the treatment tank 110. The method according to claim 1,
The scraper 120 is composed of one to three scrapers 120 are installed at the lower end of the scraper arm 121,
The scraper arm 121 is a deep layer with a high aggregation concentration, characterized in that installed at a distance (D) of 5% or more relative to the radius (R) of the treatment tank 110 spaced apart from the bottom of the treatment tank 110 Sludge collector of the structure. A sludge collector 100 according to any one of claims 1, 3, 4, 5, 6;
A first stirring tank (200) for inducing the formation of a floc by mixing a flocculant in the wastewater to be supplied to the sludge collector (100);
A storage tank 300 for storing the sludge discharged from the sludge collector 100 for a predetermined period of time;
Filter paper 400 which is finally discharged by filtering the treated water discharged from the sludge collector 100; And
Dehydrator 500 for dewatering the sludge discharged from the storage tank 300; High turbidity wastewater treatment system comprising a sludge collector of a deep structure with a flocculation concentration function comprising a. The method according to claim 7,
When the sludge concentration of the sludge discharged from the sludge collector 100 is greater than or equal to a preset reference value, the sludge discharged from the sludge collector 100 is received, mixed with fresh water to lower the salt concentration of the sludge, and then discharged into the storage tank 300. A high turbidity wastewater treatment system comprising a sludge collector of a deep structure with a cohesive concentration function, characterized in that it further comprises a dilution concentrator (600). The method according to claim 8,
The dilution concentrate tank (600) is a high turbidity wastewater treatment system comprising a sludge collector of a deep structure with a cohesive concentration function, characterized in that the same structure as the sludge collector (100). The method according to claim 8,
Coagulant concentration function, characterized in that the decanter 320 for adjusting the concentration of the sludge by adjusting the water level of the storage tank 300 by controlling the treated water discharged from the storage tank 300 is further installed in the storage tank (300) A high turbidity wastewater treatment system comprising an in-depth sludge collector. The method according to claim 7,
The filter paper 400 includes a media support layer 420 of a multi-layer structure consisting of filter sacks of different sizes,
The filter medium support layer 420 may include a first support layer 421 having a largest particle size and a second support layer 422 having a particle size smaller than that of the first filter element. And a third support layer 423 made of a third filter sari having a smaller particle size than the third filter sari, and a fourth support layer 424 made of a fourth filter sari having a particle diameter smaller than the third filter sari. The support layer 421, the second support layer 422, the third support layer 423, the fourth support layer 424, the third support layer 423, and the first support layer 421 are formed in a stacked structure. A high turbidity wastewater treatment system comprising a sludge collector of a deep structure containing a cohesive concentration function. The method according to claim 7,
The sludge interface in the sludge collector 100 is detected by a sensor to control the drawing of sludge, the turbidity of the treated water is detected by the sensor to monitor the water quality of the treated water and backwash the filter paper 400 according to the treated water quality. A control panel 800 including a function of automatically performing the function of controlling the dehydration operation time by controlling the water level of the storage tank 300 by the control of the decanter 320 provided in the storage tank 300; High turbidity wastewater treatment system comprising a sludge collector of a deep structure containing a cohesive concentration function.

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