KR20220150046A - Sewage and water treatment method equipped with up-flow blocking inclined plate module in SeDAF(sedimentation and Dissolved Air Flotation) - Google Patents

Abstract

The present invention provides a sedimentation and dissolved air flotation treatment apparatus equipped with an up-flow blocking inclined plate module, and a treatment method using the same. The sedimentation and dissolved air flotation treatment apparatus comprises: a flocculation tank treating untreated water introduced for water treatment to generate flocs; a sedimentation and dissolved air flotation tank providing a flow path of the untreated water by a plurality of inclined plates, and having a sedimentation region depositing the flocs contained in the untreated water while the untreated water introduced from the flocculation tank moves along the flow path, and a flotation region disposed on the sedimentation region and allowing the untreated water passing through the sedimentation region to be floated, thereby removing the flocs contained in the floated untreated water; and an introduction part defined in a partition wall which divides the flocculation tank and the sedimentation and dissolved air flotation tank, and allowing the untreated water to be introduced from the flocculation tank into the sedimentation region. Each of the plurality of inclined plates comprises: a sedimentation part in which flocs of the untreated water moving along the flow path are deposited; and a blocking part which blocks the untreated water deviated from the flow path and moving upward from moving to the flotation region to prevent upward short circuit flow from being formed. According to the present invention, it is possible to prevent the floating of sludge and increase the purification efficiency.

Description

Sedimentation flotation treatment apparatus equipped with an upflow blocking inclined plate module and a sedimentation flotation treatment method using the same

The present invention relates to a sedimentation flotation treatment apparatus equipped with an upflow blocking swash plate module and a sedimentation flotation treatment method using the same, and more particularly, from the lower part of the swash plate module of the integrated sedimentation plate module installed with a plurality of swash plate modules to the upper side or to the side. It relates to a sedimentation flotation treatment apparatus equipped with an upflow blocking swash plate module capable of blocking untreated water, and a sedimentation flotation treatment method using the same.

A sedimentation pond equipped with a sloping plate used in sewage or wastewater treatment facilities is used as a water treatment reactor to improve water quality by precipitating suspended matter heavier than water by gravity. The inclined plate device can increase the throughput and improve the sedimentation efficiency by increasing the sedimentation area by increasing the sedimentation area as a multi-layered sedimentation plate (sedimentation channel) is formed using the inclined plate in the sedimentation tank, thereby increasing the efficiency of sedimentation treatment. It is known that there is an advantage in the discharge of the sludge produced by the treatment.

In general, it is known that the sedimentation of single particles in the sedimentation tank is directly related only to the surface area regardless of the depth of the tank.

The swash plate device is used instead of the case where the surface load ratio is insufficient or high sedimentation efficiency must be achieved within a short residence time based on the analysis as described above, and it is widely used because it can effectively increase the sedimentation effect of the suspended matter.

However, in the case of the swash plate device, an upward flow occurs from the lower part of the swash plate to the upper part, and this causes the sedimentation efficiency to be lowered or the contaminants deposited on the swash plate surface to float, and the purification efficiency by the sedimentation tank is rather reduced. there is

Domestic Registered Patent No. 10-0658144 (Registration Date: December 08, 2006)

The technical problem to be achieved by the present invention in order to solve the above problems is to block the flow of untreated water flowing from the lower part of the swash plate to the upper side or to the side to prevent the floating or separation of flocs such as sludge and to increase the purification efficiency It relates to a sedimentation flotation treatment apparatus equipped with an upflow blocking swash plate module capable of being able to, and a sedimentation flotation treatment method using the same.

In addition, the technical problem to be achieved by the present invention is to facilitate the installation and management of the swash plate by using a plurality of modular swash plate modules, and to treat the sedimentation flotation equipped with an upflow blocking swash plate module that can induce the precipitation and downward direction of flocs It relates to an apparatus and a method for treating sedimentation flotation using the same.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

As a means for solving the above technical problem, according to an embodiment of the present invention, the sedimentation flotation treatment apparatus provided with an upflow blocking swash plate module includes: a coagulation tank for generating flocs by treating untreated water introduced for water treatment; A precipitation area for providing a flow path of untreated water by a plurality of swash plates, and precipitating flocs included in the untreated water while the untreated water flowing from the coagulation tank moves along the flow path; , a sedimentation flotation tank comprising a flotation region for removing the flocs contained in the levitated untreated water by flotation of the untreated water that has passed through the sedimentation region; and an inlet part having a partition wall separating the coagulation tank and the settling tank, so that untreated water flows into the settling area from the coagulation tank, wherein each of the plurality of swash plates moves along the flow path a settling part in which a number of flocs are precipitated; and a blocking unit for preventing the formation of an upward short-circuit flow by blocking the movement of the untreated water upward from the flow path to the floating area.

The settling flotation tank may include: a water treatment tank receiving untreated water flowing in from the coagulation tank to precipitate and float flocs; and a plurality of swash plate modules provided in the water treatment tank, each including a plurality of swash plates to provide a flow path together with the inner wall of the water treatment tank.

Each of the plurality of swash plate modules may include: a frame module provided in a hexahedral shape using a plurality of frames; and a plurality of inclined plates provided in the frame module and including the sedimentation part and the blocking part, wherein the sedimentation part is provided to be inclined at a first angle with respect to the bottom of the sedimentation part top tank, and the blocking part is the needle It is provided in a bent form at one end of the settling part so as to have a front and a second angle, and the sum of the first angle and the second angle is 90 degrees.

The blocking part is provided to form a right angle with respect to the bottom of the settling part top tank to prevent an upward short-circuit flow from being formed.

Some of the blocking parts included in the plurality of swash plates (hereinafter, referred to as 'side blocking parts') are provided on a straight line so as to be parallel to the vertical frames extending from the upper edge to the lower edge of the frame module.

The plurality of swash plate modules are configured to face each other in pairs and are provided to be spaced apart to form a flock discharge space between the plurality of swash plate modules, and the flocks deposited on the plurality of swash plates are directed to the flock discharge space down

The inlet portion is formed under the partition wall separating the coagulation tank and the sedimentation part top tank, the inlet part for allowing untreated water to flow into the sedimentation area from the coagulation tank, and the maximum height of the plurality of swash plates from the bottom of the partition wall. and at least one of the plurality of perforations formed.

On the other hand, according to another embodiment of the present invention, the sedimentation flotation treatment method of the sedimentation flotation treatment apparatus equipped with an upflow blocking swash plate module, (A) in the coagulation tank, treats untreated water flowing in for water treatment to generate flocs to do; (B) moving in the sedimentation tank, the untreated water introduced from the coagulation tank through the flow path of the untreated water provided by a plurality of swash plates; (C) in the settling buoyancy tank, while the untreated water moves along the flow path, the flocs included in the untreated water are settling in the settling part of the plurality of swash plates; (D) preventing the formation of an upward short-circuit flow by blocking the movement of the untreated water upward from the flow path to the floating area in the settling part aid tank with a blocking part among the plurality of inclined plates; and (E) removing the flocs contained in the floating untreated water by levitating the untreated water that has passed through the settling area to the floating area in the sedimentation tank.

The settling unit is provided to be inclined at a first angle with respect to the bottom of the settling unit upper tank, and the blocking unit is provided in a bent form at one end of the settling unit to have a second angle with the settling unit, the first angle and the second angle The sum of is 90 degrees.

The blocking part is provided to form a right angle with respect to the bottom of the settling part top tank to prevent the formation of an upward short-circuit flow.

After the step (B), (F) in the settling part aid tank, among the blocking parts included in the plurality of swash plates, the side blocking parts provided on a straight line are provided to form a right angle with respect to the bottom of the settling part aid tank. It further includes; preventing side short circuits from being formed.

According to the present invention, there is an effect of minimizing the generation of untreated water flowing from the lower part of the swash plate to the upper side or flowing to the side, thereby preventing the sludge from floating and improving the purification efficiency.

In addition, according to the invention, there is an effect that can facilitate the installation and management of the swash plate by combining the swash plate modules.

In addition, according to the present invention, an upward short-circuit flow or a side short-circuit flow is provided by providing a settling part on which the flocs of the swash plate are deposited and a blocking part for blocking the escape of untreated water, and some of these blocking parts are located at the upper part and the side part of the swash plate module. formation can be prevented.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing a sedimentation flotation treatment apparatus 100 equipped with an upflow blocking swash plate module according to an embodiment of the present invention;
2 is a view showing the total flow of untreated water inside the sedimentation flotation treatment apparatus 100 equipped with an upflow blocking swash plate module according to an embodiment of the present invention;
3 is a perspective view showing first to fourth swash plate modules 310 to 340 according to an embodiment of the present invention;
Figure 4 is a perspective view showing in detail the first to fourth frame modules (311, 321, 331, 341) of the first to fourth inclined plate modules (310 to 340),
5 is a perspective view of the first swash plate 312;
6 is a front view of the first swash plate module 310 and a front view of the second swash plate module 320;
7 is a view showing a sedimentation flotation treatment apparatus 700 equipped with an upflow blocking swash plate module according to another embodiment of the present invention, and,
8 is a flowchart for explaining a method for treating sedimentation flotation of the sedimentation flotation treatment apparatus 100 equipped with an upflow blocking swash plate module according to an embodiment of the present invention.

An embodiment of a sedimentation tank equipped with an upflow blocking swash plate module according to the present invention and a water treatment method using the same will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are The same reference numerals are given, and overlapping descriptions thereof will be omitted.

In addition, terms such as first, second, etc. used below are merely identification symbols for distinguishing the same or corresponding components, and the same or corresponding components are limited by terms such as first, second, etc. not.

In addition, in the contact relationship between each component, the term "coupling" does not mean only when there is direct physical contact between each component, but another component is interposed between each component, so that the component is in the other component It should be used as a concept that encompasses even the cases in which each is in contact.

1 is a view showing a sedimentation flotation treatment apparatus 100 provided with an upflow blocking swash plate module according to an embodiment of the present invention.

Referring to FIG. 1 , the sedimentation flotation treatment apparatus 100 provided with an upflow blocking swash plate module according to an embodiment of the present invention has an inlet 110 , at least one mixing tank 120 , and at least one coagulation tank 130 . , an inlet 140 , a sedimentation tank 150 , a hopper 160 and a treatment water tank 170 may be included.

Untreated water (or wastewater) introduced through the inlet 110 is introduced into one or more mixing tanks 120 . The one or more mixing tanks 120 may mix the incoming untreated water and the coagulant by stirring.

The one or more coagulation tank 130 may generate flocs of a predetermined size by stirring the untreated water mixed with the coagulant in the mixing tank 120 . The flocs may be sludge.

The inlet 140 applied as an example of the inlet is formed at the lower portion of the partition wall 135 that separates the coagulation tank 130 and the settling tank 150 , and a plurality of the settling tank 150 from the coagulation tank 130 . The untreated water may be introduced between the first to fourth inclined plates 312 , 322 , 332 , and 342 of the . The sedimentation tank 150 may form a flow path so that the untreated water introduced through the inlet 140 may settle or float using a plurality of swash plate modules 310 to 340 . Untreated water can float after moving in the direction of the inner wall of the sedimentation tank 150 by the flow path formed between the plurality of first to fourth inclined plates (312, 322, 332, 342), and moving to the flow path Floc included in the untreated water may be deposited on the upper surfaces of the plurality of first to fourth inclined plates 312 , 322 , 332 , and 342 . The inner wall may be a side wall located at the lower end of the flotation device 152 in the water treatment tank 151 .

The sedimentation flotation tank 150 may allow, for example, a sedimentation flotation process in a single reaction tank.

2 is a view showing the total flow of untreated water in the sedimentation flotation treatment apparatus 100 equipped with an upflow blocking swash plate module according to an embodiment of the present invention.

In FIG. 2 , a portion indicated in red indicates untreated water having a relatively high flow rate, and blue indicates untreated water having a relatively low flow rate. 2, the untreated water according to the embodiment of the present invention moves along the bottom and inner wall of the sedimentation tank 150 or between a plurality of first to fourth inclined plates 312, 322, 332, 342. It moves through the formed flow path. As a result, the flocs contained in the untreated water are sedimented while passing through the front surfaces of the plurality of first to fourth inclined plates 310 to 340, thereby increasing the effect of accumulating as sludge.

Referring back to FIG. 1 , the sedimentation tank 150 is included in the untreated water while the untreated water flowing from the coagulation tank 130 to the lower end of the sedimentation tank 150 through the inlet 140 moves along the flow path. It may include a sedimentation region for precipitating the flocs, and a flotation region formed on the upper portion of the sedimentation region and removing flocs included in the floated untreated water by flotation of untreated water passing through the sedimentation region.

To this end, the sedimentation tank 150 includes a water treatment tank 151 , the first to fourth inclined plate modules 310 to 340 , the flotation device 152 , the flotation separator plate 153 , the flock assembly part 154 and A discharge unit 155 may be included.

The water treatment tank 151 may receive the untreated water flowing in from the coagulation tank 130 to precipitate or float flocs included in the untreated water. To this end, the first to fourth swash plate modules 310 to 340 may be provided in the water treatment tank 151 , and may each include a plurality of swash plates 312 , 322 , 332 , and 342 to form a flow path.

3 is a perspective view showing first to fourth swash plate modules 310 to 340 according to an embodiment of the present invention, and FIG. 4 is a first to fourth swash plate modules 310 to 340 among the first to fourth swash plate modules 310 to 340 of the present invention. 4 is a perspective view showing in detail the frame modules 311, 321, 331, 341, FIG. 5 is a perspective view of the first swash plate 312, and FIG. 6 is the first swash plate module 310 (right) and the second swash plate A front view of the module 320 (left).

3 to 6 , the first to fourth swash plate modules 310 to 340 are respectively the first to fourth frame modules 311 , 321 , 331 , 341 and the first to fourth swash plates ( 312, 322, 332, 342). The first to fourth swash plate modules 310 to 340 all have the same structure and function, and the first swash plate module 310, the third swash plate module 330, and the second swash plate module 320 and the fourth swash plate module Reference numeral 340 has a shape symmetrical to each other, and hereinafter, the first swash plate module 310 will be described as an example.

The first swash plate module 310 includes a first frame module 311 and a plurality of first swash plates 312 .

The first frame module 311 is provided in a hexahedral shape using a plurality of frames 311a to 311f.

The plurality of frames 311a to 311f are, for example, a lower frame 311a forming a lower portion, an upper frame 311b forming an upper portion, and first to connecting the lower frame 311a and the upper frame 311b. It may be the fourth vertical frames 311c to 311f. This is divided for convenience of description and may be configured in other forms.

The plurality of first inclined plates 312 are provided in the first frame module 311 and include a settling part 312a and a blocking part 312b.

The settling unit 312a may be inclined with respect to the bottom surface of the water treatment tank 151 so that flocs of the untreated water are precipitated while the untreated water moves along the flow path in the water treatment tank 151 toward the inner wall.

The blocking unit 312b blocks the movement of the untreated water upward from the flow path directly to the floating area (ie, not through the space in which the floating device 152 is located), thereby preventing the formation of an upward short circuit. Short-circuit flow (短絡流) refers to the flow of water flowing into the settling facility and flowing out to the outlet at a high speed without staying for the designed settling time when water is treated.

To this end, the sedimentation part 312a is provided to be inclined at a first angle with respect to the bottom surface of the sedimentation part aid tank 150 or the water treatment tank 151, and the blocking part 312b is provided at a second angle with the sedimentation part 312a. It may be provided in a bent form at one end of the settling part 312a to have a .

The sum of the first angle and the second angle may be formed to have 90 degrees, the first angle may be, for example, 60 degrees, and the second angle may be 30 degrees, and this angle is the flow rate of untreated water moving through the flow path, It can be changed according to the cross-sectional area of the water treatment tank 151 and the like.

In addition, the blocking part 312b is provided to form a right angle with the bottom surface of the sedimentation tank 150 or the water treatment tank 151 to prevent the formation of an upward short circuit.

In addition, some of the blocking parts included in the plurality of first inclined plates 312 (hereinafter, referred to as 'side blocking parts') 600 are the first to the fourth vertical frames 311c to 311f may be provided on a straight line so as to be parallel to each other.

In addition, the side blocking parts 312b may be provided to be spaced apart by a minimum interval or may be provided so that a gap does not occur.

In addition, the side blocking parts 600 are, for example, as blocking parts provided between the first and third vertical frames 311c and 311e, as shown in Figs. It is provided to form a right angle with respect to the bottom surface (or the bottom surface of the lower frame 311a). Accordingly, it is possible to prevent the untreated water from escaping to the side while moving through the flow paths of the first to fourth swash plate modules 310 to 340 along the flow path.

In particular, since the side blocking parts 312b are provided to be placed in a vertical straight line, the distance between the side blocking parts 312b can be minimized. The phenomenon of escape to the formed space can be minimized.

That is, it is possible to prevent the formation of an upward short-circuit flow and a side short-circuit flow by forming the cut-off parts in the form of angles on the side as well as the top of the first to fourth swash plate modules 310 to 340 .

On the other hand, the first to fourth swash plate modules 310 to 340 are provided to face each other in pairs and are provided to be spaced apart as shown in FIGS. 3 and 6 , and the first to fourth swash plate modules 310 to 340) may form a flock discharge space 300 between.

For example, the settling portions 312a and 322a of the first and second swash plate modules 310 and 320 are provided to face each other to form a V shape, and the third and fourth swash plate modules 330 and 340 of the The settling portions may be provided to face each other to form a V shape. Accordingly, the flocs deposited on the sedimentation part 312a of the plurality of first swash plates 312 and the flocs deposited on the sedimentation part 322a of the second sloping plates 322 descend to the same flock discharge space 300 . .

In addition, the first to fourth swash plate modules 310 to 340 may be connected and fixed by the first and second fixing frames 180 and 185 so that the flock discharge space 300 is fixed.

The first fixing frame 180 has a shape that can span the upper frames of the first and second swash plate modules 310 and 320 , and the second fixing frame 185 includes the third and fourth swash plate modules 330 . , 340) may be in a form that can span the upper frames.

In addition, the interval between the first swash plate module 310 and the third swash plate module 330 is provided so that the maximum is 0, and the interval between the second swash plate module 320 and the fourth swash plate module 340 is also provided so that the maximum is 0. Thus, it is possible to prevent a flow path short circuit and to increase the sedimentation efficiency.

Referring back to FIG. 1 , the flotation unit 152 may supply water in which the air is dissolved so that the untreated water, which has moved in the direction of the inner wall along the flow path, floats to the flotation area. For this purpose, a plurality of perforations are formed in the floater 152, and untreated water floats to the flotation area by water or bubble-type water generated by the plurality of perforations.

The floating separation plate 153 is formed to have a certain inclination from the top to the bottom in the direction in which the flotation device 152 is disposed, and through this, the sedimentation process and the flotation separation process are separated without a dead space of the water flow. It is possible. This is, as shown in FIG. 2, a forward water flow is formed in the lower portion of the first to fourth inclined plate modules 310 to 340 by the floating separation plate 153, and an upward water flow is formed in the lower portion of the floating device 152 and floated. This is because a small circulation water flow is formed in the upper portion of the unit 152 , and a large circulation water flow in the reverse direction is formed in the floating region, which is an upper portion of the water treatment tank 151 .

The flock collecting unit 154 is a reservoir in which the flocs contained in the untreated water floated by the floatation unit 152 are collected. The floating flock is removed by a scraper (not shown) and transferred to the flock assembly unit 154 .

The discharge unit 155 may discharge the final treated water from which the flocs are removed from the floating area to the treatment water tank 170 . The discharge unit 155 may be provided between the first to fourth inclined plate modules 310 to 340 and a scraper (not shown), and may include a plurality of perforations.

The hopper 160 is provided at the lower end of the first to fourth inclined plate modules 310 to 340 so that the flocs that descend into the flock discharge space 300 of the first to fourth inclined plate modules 310 to 340 are finally settled. do.

According to the above-described embodiment of the present invention, a plurality of swash plate modules 310 to 340 are provided such that at least two face each other and are spaced apart so that the flock is directed downward to the hopper 160 , that is, the flock discharge space 300 . can provide In addition, each swash plate includes a settling part 312a and a blocking part 312b formed in a bent shape at one end of the settling part 312a, and some of the plurality of blocking parts 312b are on the upper frame 311b. Abutting, the remaining side blocking parts 600 are provided so as to abut against at least two of the first to fourth vertical frames 311c to 311f, so that the untreated water leaves the flow path and moves directly upward to the floating area or laterally. can be prevented

7 is a view showing a sedimentation flotation treatment apparatus 700 equipped with an upflow blocking swash plate module according to another embodiment of the present invention.

Referring to FIG. 7 , the sedimentation flotation treatment apparatus 700 equipped with an upflow blocking swash plate module according to another embodiment of the present invention has an inlet 710 , one or more mixing tanks 720 , and one or more coagulation tanks 730 . , a partition wall 740 , a sedimentation tank 750 , a hopper 760 and a treatment water tank 770 may be included.

The inlet 710, one or more mixing tank 720, one or more coagulation tank 730, sedimentation tank 750, hopper 760 and treatment water tank 770 shown in FIG. 7 are shown in FIGS. 1 to 6 The inlet 110, at least one mixing tank 120, at least one coagulation tank 130, the sedimentation tank 150, the hopper 160 and the treatment tank 170 are the same or similar to the described inlet 110, and thus detailed description is omitted. do.

However, the partition wall 740 of the settling flotation treatment apparatus 700 shown in FIG. 7 is formed between the coagulation tank 730 and the settling flotation tank 750, and a portion of the partition wall 740 is applied as another embodiment of the inlet. A plurality of perforations 741 may be formed to be spaced apart at regular intervals. The partial region may be a region corresponding to the maximum height of the first to fourth swash plate modules 310 to 340 from the lower end of the partition wall 740 .

The untreated water in which the flocs are grown in the coagulation tank 730 flows into the sedimentation tank 750 through the plurality of perforations 741 , and then the flow path formed by the first to fourth inclined plate modules 310 to 340 . It can move in the direction of the inner wall where the floating device 752 is located.

As shown in FIG. 7 , when untreated water passes through a plurality of perforations 741 formed in the barrier rib 740 , the untreated water passes through the perforations 741 constantly formed from the upper end to the lower end of the barrier rib 740 . to the fourth inclined plate modules 310 to 340 may be uniformly introduced into the flow path to move.

The sedimentation flotation tank 750 may allow the sedimentation flotation process to be performed in a single reaction tank, and the untreated water flowing in from the coagulation tank 730 through a plurality of perforations 741 is uniformly dispersed while moving along the flow path. It may include a sedimentation region for precipitating the flocs included in the water, and a flotation region formed on the upper portion of the sedimentation region and removing the flocs included in the floating untreated water by levitating the untreated water that has passed through the sedimentation region.

To this end, the sedimentation tank 750 is a water treatment tank 751, the first to fourth inclined plate modules 310 to 340, the flotation device 752, the flotation separator plate 753, the flock assembly part 754 and It includes a discharge unit 755, which is the same as the settling buoyancy tank 150 described with reference to FIGS. 1 to 6, and thus a description thereof will be omitted.

According to another embodiment of the present invention described above, the untreated water introduced through the perforations 741 of the partition wall 740 is uniformly introduced into the flow path formed between the swash plates of the plurality of swash plate modules 310 to 340. Moving, the surface load ratio is increased by the plurality of swash plate modules 310 to 340, thereby improving the sedimentation performance, and preventing the untreated water from escaping upward or laterally.

In addition, in FIGS. 1 and 7 , as an example of the inlet, the inlet 140 and the plurality of perforations 741 are independently formed as an example, but the inlet 140 and a plurality of the partition walls 140 or 740 are provided. of the perforations 741 may be formed at the same time to allow untreated water to flow into the sedimentation tank 150 or 750 . In this case, a plurality of perforations 741 may be formed in the upper portion of the inlet 140 to the maximum height of the first to fourth inclined plate modules 310 to 340 .

8 is a flowchart for explaining a method for treating sedimentation flotation of the sedimentation flotation treatment apparatus 100 provided with an upflow blocking swash plate module according to an embodiment of the present invention.

Referring to FIG. 8 , in the coagulation tank 130 , untreated water introduced for water treatment is chemically treated with a coagulant to generate flocs ( S810 ). The untreated water including the generated flocs moves to the sedimentation tank 150 through the inlet 140 .

In the sedimentation tank 150 , the untreated water introduced from the coagulation tank 130 through the flow path of the untreated water provided by the swash plates 312 , 322 , 332 , 342 of the plurality of swash plate modules 310 to 340 . The number may move forward (S820). In step S820 , untreated water may be introduced into the sedimentation tank 150 through the inlet 140 formed at the lower end of the partition wall 135 or a plurality of perforations 741 formed in the partition wall 135 .

While the untreated water moves through the flow path in step S820 , in the sedimentation tank 150 , the flocs included in the untreated water may be deposited in the sedimentation part of the plurality of inclined plates 312 to 342 ( S830 ).

In step S840, the untreated water leaving the flow path and ascending upward is blocked from moving to the floating area by the blocking unit among the plurality of swash plates 312 to 342, thereby preventing the formation of an upward short circuit (S840).

In addition, while the untreated water moves through the flow path in step S820, untreated water leaving the flow path and moving to the side is generated in the sedimentation buoyancy tank 150. It is blocked by the side blocking parts 600 provided on the side of the side short circuit can be prevented from forming (S850).

The formation of an upward short-circuit flow and a side short-circuit flow is prevented by steps S820 to S860, and at the same time, the untreated water passing through the settling area through the flow path is floated to the floating area by the flotation unit 152 in the settling flotation tank 150. In addition, the flocs contained in the floating untreated water may be removed and collected by the flocs collecting unit 154 (S860).

In addition, among the plurality of inclined plates 312 to 342 in steps S820 to S860, the flocs that are deposited on the sedimentation part or the flocs that are removed by themselves while moving to the flow path are collected downwards into the hopper 160, and the final treated water is It may be discharged to the treatment water tank 170 (S870).

On the other hand, although described and illustrated in relation to a preferred embodiment for illustrating the technical idea of the present invention above, the present invention is not limited to the configuration and operation as shown and described as such, and deviates from the scope of the technical idea. It will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without the above. Accordingly, all such suitable alterations and modifications and equivalents are to be considered as falling within the scope of the present invention. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: sedimentation flotation treatment device 110: inlet
120: mixing tank 130: coagulation tank
140: inlet 150: sedimentation tank
151: water treatment tank 152: flotation unit
153: floating separation plate 154: flock assembly
155: discharge unit 160: hopper
170: treatment tank
310, 320, 330, 340: first to fourth inclined plate modules
311, 321, 331, 341: first to fourth frame modules
312, 322, 332, 342: first to fourth inclined plates
312a, 322a: sedimentation part
312b, 322b: blocking part

Claims (11)

a coagulation tank for generating flocs by treating untreated water flowing in through an inlet for water treatment;
A precipitation area for providing a flow path of untreated water by a plurality of swash plates, and precipitating flocs included in the untreated water while the untreated water flowing from the coagulation tank moves along the flow path; , a sedimentation flotation tank comprising a flotation region for removing the flocs contained in the levitated untreated water by flotation of the untreated water that has passed through the sedimentation region; and
Including; is formed on the partition wall separating the flocculation tank and the sedimentation tank to allow untreated water to flow into the sedimentation area from the flocculation tank;
Each of the plurality of swash plates,
a settling unit in which flocs of untreated water moving along the flow path are precipitated; and
A settling flotation treatment apparatus provided with an upward flow blocking swash plate module comprising a; a blocking unit for preventing the formation of an upward short-circuit flow by blocking the movement of the untreated water upward from the flow path to the floating area.
According to claim 1,
The sedimentation tank,
a water treatment tank receiving untreated water flowing in from the coagulation tank to settling and floating flocs; and
A plurality of swash plate modules provided in the water treatment tank, each including a plurality of swash plates to provide a flow path together with the inner wall of the water treatment tank;
3. The method of claim 2,
Each of the plurality of swash plate modules,
a frame module provided in a hexahedral shape using a plurality of frames; and
A plurality of inclined plates provided in the frame module and including the settling part and the blocking part;
The settling part is provided to be inclined at a first angle with respect to the bottom of the settling part aid tank,
The blocking part is provided in a bent form at one end of the settling part so as to have a second angle with the settling part,
The settling flotation treatment apparatus provided with an upflow blocking swash plate module, characterized in that the sum of the first angle and the second angle is 90 degrees.
4. The method of claim 3,
The blocker is provided to form a right angle with respect to the bottom of the settling buoyancy tank to prevent the formation of an upward short-circuit flow.
5. The method of claim 4,
Some of the blocking parts included in the plurality of swash plates (hereinafter referred to as 'side blocking parts') are provided on a straight line so as to be parallel to the vertical frames extending from the upper edge to the lower edge of the frame module. A sedimentation flotation treatment device equipped with an upflow blocking swash plate module.
3. The method of claim 2,
The plurality of swash plate modules are configured to face each other in pairs and are provided to be spaced apart to form a flock discharge space between the plurality of swash plate modules,
The settling flotation treatment apparatus provided with an upflow blocking swash plate module, characterized in that the flocs deposited on the plurality of swash plates descend to the flock discharge space.
According to claim 1,
The inlet is
A plurality of inflow portions formed under the partition wall separating the coagulation tank and the settling part top tank to allow untreated water to flow into the sedimentation area from the coagulation tank, and a plurality of formed below the maximum height of the plurality of swash plates from the lower end of the partition wall Settling flotation treatment apparatus with an upflow blocking swash plate module, characterized in that it comprises at least one of the perforations.
In the sedimentation flotation treatment method of the sedimentation flotation treatment apparatus equipped with an upflow blocking swash plate module,
(A) in the coagulation tank, treating untreated water introduced for water treatment to generate flocs;
(B) moving in the sedimentation tank, the untreated water introduced from the coagulation tank through the flow path of the untreated water provided by a plurality of swash plates;
(C) in the settling buoyancy tank, while the untreated water moves along the flow path, the flocs included in the untreated water are settling in the settling part of the plurality of swash plates;
(D) preventing the formation of an upward short-circuit flow by blocking the movement of the untreated water upward from the flow path to the floating area in the settling part aid tank with a blocking part among the plurality of inclined plates; and
(E) in the settling tank, removing the flocs contained in the floating untreated water by levitating the untreated water that has passed through the settling area to the floating area; Way.
9. The method of claim 8,
The settling unit is provided to be inclined at a first angle with respect to the bottom of the settling unit upper tank, and the blocking unit is provided in a bent form at one end of the settling unit to have a second angle with the settling unit, the first angle and the second angle Sediment flotation treatment method using an upflow blocking swash plate module, characterized in that the sum is 90 degrees.
10. The method of claim 9,
The blocker is provided to form a right angle with respect to the bottom of the settling buoyancy tank to prevent an upward short-circuit flow from being formed.
11. The method of claim 10,
After step (B),
(F) in the settling part aid tank, among the blocking parts included in the plurality of inclined plates, the formation of a side short circuit is prevented by the side blocking parts provided on a straight line, which is provided to form a right angle with respect to the bottom of the settling part aid tank A sedimentation flotation treatment method provided with an upflow blocking swash plate module, characterized in that it further comprises.

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