KR100999369B1 - Apparatus of water treatment with coagulation, flocculation, sedimentation and filtration for wastewater treatment - Google Patents

Abstract

PURPOSE: An integrated water-treatment apparatus for processing waste water, sewage, and muddy water is provided to reduce the maintenance expense by decreasing the usage amount of a coagulant. CONSTITUTION: An integrated water-treatment apparatus for processing waste water, sewage, and muddy water comprises a coherence device(10), a precipitation device(20) and a filtration device(60). The coherence device includes a water tank(3) for collecting contaminants containing the waste water and the sewage, and a coherence reaction unit(14) including an inline mixer(11) and a channel mixture(12). The precipitation device includes a precipitation tank(22) and a sludge circulator(50). The filtration device includes a filtering tank(64) and an effluent discharge member(65).

Description

TECHNICAL FIELD The present invention relates to an integrated water treatment apparatus for treating sewage, wastewater,

The present invention relates to an integrated water treatment apparatus for purifying contaminants including wastewater, wastewater, and turbid water by a flocculation-sedimentation-filtration method for water treatment, and it is an object of the present invention to provide an integrated water treatment apparatus in which coagulation is performed by using a line mixer and a channel mixer, And the precipitation is effected efficiently by using a slope plate settling tank composed of a main sloping plate and an auxiliary sloping plate and a part of the settled sludge is recycled to the flocculation reaction tank to more effectively induce floc formation in the flocculation reaction part, To an integrated type water treatment apparatus for securing a stable treated water quality through filtration and adsorption in a filtration tank.

Generally, the physical and chemical water treatment processes in the water treatment process are generally applied to processes such as coagulation-sedimentation-filtration or flocculation-floatation-filtration.

In this physico-chemical water treatment process, operation in coagulation process is excessive use of coagulant due to decrease of coagulation efficiency, neglecting problems other than the amount of coagulant injected due to decrease of coagulant treatment efficiency, Filtration and the like, and it causes economical loss and operational problems. Therefore, it is necessary to improve the flocculation efficiency from the flocculation process in order to ensure the stable treated water quality in the water treatment.

In the coagulation process, it is necessary to form suspended colloidal particles suspended in water in the form of particles (floc, floc) capable of sedimentation and filtration through the rapid mixing and the slow mixing process. The coagulant and coagulant . Rapid mixing is a process in which coagulants injected at a rapid mixing speed are diffused to form nuclei of floc. In the slow mixing, a floc nucleus binds to particles in water at a gentle mixing speed to form a floc having a size capable of precipitating It plays a role.

The coagulant injected into the water can theoretically be mixed evenly after mixing and mixing. However, due to the characteristics of the flocculant, hydrolysis in water and the rapid reaction speed of the polymerization reaction with the suspended colloid particles are very fast. Therefore, in the rapid mixing, the flocculant should be able to uniformly diffuse instantaneously as soon as possible after the addition of the flocculant. It is necessary to set the mixing condition so that the cohesive force is not broken and the precipitable flock is formed and the size thereof can be maintained. Therefore, development of mixing and coagulation technology capable of satisfying two conditions is required due to the property that the rapid reaction condition by the coagulant and the coagulant and the uniform mixing condition are opposite to each other.

Generally, in the domestic and foreign water treatment sites, a mechanical mixing system, which is a completely mixed chamber system, is used in a rapid mixing and a full mixing system. In the fully mixing mechanical mixing apparatus, And the mixture is discharged from the coagulant storage tank into the precipitation tank by mixing with the coagulant introduced into the mixing tank by the chemical pump from the coagulant storage tank. The mechanical mixing device can adjust the mixing strength by changing the rotation speed of the impeller Good adaptability to flow rate changes.

As a method for improving the flocculation efficiency in the flocculation process, there is a method of improving the flocculation efficiency using the flocculation pH condition or the like according to the selection of the flocculant used in the flocculation process and a method of improving the flocculation efficiency by improving the flocculation facility . Techniques related to the development of coagulation facilities for improving coagulation efficiency include a stirring chamber and a mixing tank for rapid mixing of Korean Patent No. 10-0856702 (registered on Aug. 29, 2008) and Korean Patent No. 10-0922198 (Registered on October 10, 2009), etc. However, the above techniques are related to the coagulation agent used in the coagulation process and the technique of rapid mixing which reacts with the coagulant. As regards rapid mixing, And has a disadvantage in that the energy consumption is increased in order to increase the blending strength to achieve rapid blending. Therefore, it is necessary to improve the coagulation efficiency and to improve the coagulation efficiency.

In addition, the sedimentation tank is used to obtain only the upper water level by precipitating heavy sludge particles by gravity in the water treatment apparatus. In order to increase the settling area and increase the sedimentation speed of the sludge, . Conventionally, an inclined plate type sedimentation tank is provided with a sedimentation space so that coagulated flocs can be settled. A plurality of slanting plates that are inclined at an angle to the sedimentation space are spaced apart from each other along a direction crossing the flow direction of water .

When the water flows through the swash plate through this structure, the flocs flowing into the settling plate are moved downward by the gravity and are seated on the swash plate, and once the swash plate is seated on the swash plate, And collected.

However, such a conventional slanting plate type sedimentation tank uses only a simple gravity effect acting on the sludge due to the structure of the swash plate, and thus has a limit in increasing the sedimentation efficiency to a greater extent. That is, the solid particles in the flowing water act not only in gravity but also in external forces such as drag and inertial forces due to the flow action of the water, and the motion of the solid particles is simultaneously affected by these various factors. The structure of the swash plate is provided so as to form the flow of water passing through the swash plate in a static laminar flow state so that the sludge is deposited only through the gravity action without considering the various factors. It can not be greatly improved.

On the other hand, in the conventional water treatment site, a mixed material is formed by injecting a drug into the raw water introduced separately from the circular precipitator and rapidly mixing it with an admixer to form micro flocs, and a micro- It is necessary to provide agglomerated paper for agglomeration and increase sedimentation effect in sedimentation basin. Therefore, there is a problem that a large-scale site is required to install them. In order to operate and maintain the facility from the input of medicines in such mixed agglomerations and agglomerations, And there is a problem that the personnel and the power (energy) must be input.

In addition, in the case of the conventional horizontal-type sedimentation basin, due to the weather conditions in Korea, there is no preventive measure against the density flow occurring from June to September, and the deterioration of the flooding due to the overflow of floc is continuously occurring at the sedimentation end. It has been reported that there is a serious problem of sedimentation efficiency due to the occurrence of scorching on the upper part.

Techniques related to the development of the slope plate sedimentation tank include a slope plate type sedimentation tank of Korean Patent No. 10-0752531 (registered on August 29, 2007), a slope sedimentation apparatus of Korean Patent No. 10-0841101 (registered on June 25, 2008) A high-speed non-powered high-speed sedimentation apparatus of No. 20-0305034 (registered on February 3, 2003), and the like.

It is an object of the present invention to provide a sludge recycling apparatus and a sludge recycling apparatus using an inline mixer and a channel mixer, It is possible to minimize the required site and to shorten the construction period due to the small-sized integrated type facilities by forming the filtration tank integrally with the upflow type sedimentation unit which is equipped with gravity directly, The present invention provides a single-piece water treatment apparatus which does not cause a problem.

In order to achieve the above object, the present invention uses an inline mixer and a channel mixer mixer, which are mathematical mathematical methods, so that there is no mechanical drive part, and maintenance is easy, and additional facilities are not needed, A line mixer for water treatment and a channel mixer mixer capable of efficiently mixing an agglomerated chemical with a high reaction speed.

Another object of the present invention is to provide a water treatment line for efficiently mixing and agglomerating by sequentially injecting an aggregating agent such as an aggregating auxiliary agent and a main flocculating agent through a series of flow processes in a line mixing device and a channel mixer mixing device, And to provide a mixing device and a channel mixer mixing device.

It is another object of the present invention to provide a line mixer and a channel mixer mixer which are installed in a single-stage or multistage series pipeline and a plurality of parallel pipelines and can be installed in connection with existing piping facilities, A line mixer for water treatment and a channel mixer mixer capable of drastically reducing area and cost.

It is another object of the present invention to provide a sludge sedimentation apparatus and a sludge sludge sedimentation apparatus which can improve the structure of a sagging plate composed of a main sagging plate and an auxiliary sagging plate so that fluid drag or inertial force as well as gravity, The sludge settling efficiency is improved by inducing the recombination of the fine particles by the circulation flow and the sludge circulation which more effectively induces floc formation in the flocculation reaction section by recirculating a part of the settled sludge to the flocculation reaction tank The present invention is to provide an inclined plate type sedimentation tank.

It is another object of the present invention to provide a filtration tank capable of removing fine microfluids that have not yet been treated in a sedimentation tank by filtration or adsorption, thereby further improving water treatment efficiency.

The present invention relates to an integrated water treatment apparatus for purifying contaminants containing wastewater, wastewater and oily water by means of coagulation-sedimentation-filtration for water treatment, which comprises mixing and coagulating a coagulant to form fine particles of water into large particles And a channel mixer connected to the line mixer for introducing sludge circulated in the slope plate settler and a condenser such as a polymer flocculant to form a larger flock; A slope plate settling tank including a main slope plate and an auxiliary slope plate to precipitate the flocs formed through the flocculation reaction unit comprising the inline mixer and the channel mixer, and a sludge circulation unit for forming effective flocs in the flocculation reaction unit; Wherein the inline mixer is connected to the inline mixer through a channel connected to the channel mixer, the inline mixer being connected to the channel mixer, the inline mixer being connected to the channel mixer, And a chemical injector connected to the two to five stages in series or connected in parallel to connect the coagulant and the neutralizing agent to the inlet of the line mixer. The channel mixer is connected to the slope plate settling tank And a medicine injector connected to the pipelines connected in series or connected in series to 2 to 10 stages or connected in parallel to inject the coagulant into the inlet of the line mixer.

In addition, the channel mixer can be used not only in connection with the piping of the irrigation channel but also in the channel of the water channel. The channel mixer can be installed in the channel of the water channel in a single stage, or in a series of two to ten stages, And a chemical injector connected to the inlet of the channel mixer to connect the condenser to the inlet of the channel mixer. The integrated water treatment apparatus of the present invention is characterized in that the coagulant, sediment, .

Particularly, the integrated water treatment apparatus according to the present invention uses a hydraulic energy according to the flow in the pipeline, and thereby treats various pollutants contained in the waste water, wastewater and ozone water with low power, , It is possible to reduce the maintenance cost by reducing the energy consumption and the use of the coagulant to be used. In addition, by improving the treatment efficiency, convenience for the maintenance of the facility and stability of the process are provided, It is characterized in that it can be easily applied at various water treatment sites.

The integrated water treatment apparatus according to the present invention is a more compact technique than the conventional technology due to the use of hydraulic energy according to the flow in the channel to treat various pollutants contained in the wastewater, It is possible to reduce the maintenance cost by reducing the energy consumption and the coagulant to be used, and it is also possible to provide the convenience of facility maintenance and process stability by increasing the treatment efficiency, It is advantageous that it can be easily applied at the water treatment site.

In addition, since the inline mixer and the channel mixer are a mixing method of the hydraulic flow, there is no mechanical driving part, and maintenance is easy, and additional facilities are not needed, which is advantageous from the viewpoint of the operation cost, and the agglomerated chemicals with high- .

Also, the inline mixer and the channel mixer according to the present invention have an advantage that mixing and coagulation are efficiently performed by sequentially injecting an aggregating agent such as an aggregating aid and a main aggregating agent through a series of flow processes in an admixture apparatus.

In addition, according to the present invention, the line mixer and the channel mixer mixer for treating sewage, wastewater, and disturbed water can be installed by connecting the line mixer and the channel mixer mixer of the first stage, the multi stage and the plural stages to the existing piping facility The size of the treatment plant can be drastically reduced, and the installation area and cost can be greatly reduced.

In the inclined plate type sedimentation tank according to the present invention, since the swirl type circulation flow formed between the main swash plate and the auxiliary swash plate is formed through the constitution of the auxiliary swash plate installed on the swash plate, the micro flocs grow again into large flocs, It is possible to precipitate the sludge more quickly and to provide sludge circulation means for recirculating a part of the sludge precipitated to the flocculation reaction tank to more effectively induce floc formation in the flocculation reaction part. The efficiency is greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an integrated water treatment apparatus for purifying contaminants containing wastewater, waste water, and turbid water according to the present invention by coagulation-sedimentation-filtration. FIG. 1 is a view showing a configuration in which an inline mixer and a channel mixer are arranged in an irrigation channel.
Fig. 2 is an enlarged view of the inline mixer and the mixer element shown in "A" in Fig.
3 is an enlarged configuration view of the channel mixer shown in "B" in Fig.
FIG. 4 is a view showing a swash plate module of the swash plate settler of FIG. 1;
Figure 5 is a perspective view of the treated water overflow warehouse channel arrangement of Figure 1;
FIG. 6 is an integrated water treatment apparatus for purifying contaminants containing wastewater, wastewater, and turbid water according to the present invention by coagulation, sedimentation and filtration, wherein the line mixer maintains the shape of the irrigation water, And the like.
Fig. 7 is a planar view of Fig. 6; Fig.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of an integrated type water treatment apparatus for purifying contaminants containing wastewater, wastewater, ozone, and turbid water according to the present invention by flocculation, sedimentation, filtration, and is a constitutional view in a state in which an inline mixer and a channel mixer are arranged in an irrigation channel. 2 is an enlarged view of the in-line mixer and the mixer element shown in FIG. 1, and FIG. 3 is an enlarged view of the channel mixer shown in FIG. 1, FIG. 5 is a perspective view of the treated water overflow warehouse apparatus of FIG. 1; FIG.

As shown in FIGS. 1 to 5, in the integrated type water treatment apparatus for treating waste water, waste water, and turbid water according to the present invention, pollutants including waste water, wastewater, A water collecting tank (3) equipped with a water tank; An inline mixer 11 and a channel mixer 12 connected to the water collecting tank 3 and the piping line 5 for floc (flocculating) the contaminants containing the waste water, waste water, (10) comprising a flocculation reaction unit (14) provided therein; A sedimentation tank 22 provided with an inclined precipitation plate 30 so that flocs formed in the flocculation reaction unit 14 of the flocculation apparatus 10 are efficiently precipitated; A sedimentation unit 20 provided in the lower region of the sedimentation tank 22 and composed of sludge circulation means 50 for re-supplying the sludge to the flocculation reaction unit 14; And a filtration device 60 connected to the sedimentation tank 22 and connected to the filtration device 60 to remove fine microfluxes that have not been treated in the sedimentation tank by filtration or adsorption to improve water treatment efficiency.

The coagulation reaction unit 14 is charged with a flocculant and a pH adjuster for floc formation of particles and a polymer flocculant for floc formation of larger particles.

At this time, the inline mixer 11 includes a plurality of mixer elements 11a made of tubes having an appropriate diameter, and these mixer elements 11a are vertically or horizontally stacked one by one or two to five in a zigzag manner The waste water, the waste water, and the turbid water are kept mixed to be mixed.

On the other hand, in the front portion of the inline mixer 11, an aluminum-based inorganic coagulant such as aluminum sulfate, aluminum chloride or the like, and an iron coagulant inorganic coagulant, and a pH adjuster such as sulfuric acid, hydrochloric acid and caustic soda, .

The channel mixer 12 includes a plurality of channel mix elements 12a each having a diameter 2 to 10 times larger than that of the inline mixer 11. The number of the channel mixer elements 12a is 5 to 10, The inline mixer 11 constituted as a set is vertically or horizontally stacked in one stage or two to ten stages so that the lower and wastewater flowing into the inside and the turbine flows in a zigzag pattern .

At this time, it is preferable that the front end of the channel mixer 12 is provided with a sludge inlet through which the introduction of the polymer coagulant such as polyacrylamide, polyamine, and poly-dide membrane flows through the coagulant inlet port and the sludge circulation section of the swash plate sedimentation tank.

The slope settling plate 30 is provided between the partition 23 opened at one side of the settling tank 22 and the other side of the settling tank 22 to increase the settling efficiency while minimizing the water surface area load rate in the settling tank 22 Effect is obtained.

That is, the inclined precipitation plate 30 includes a pair of inclined support plates 32 fixed between the partition 23 and the other side of the sedimentation tank 22; A plurality of inclined finishing plates (34) inclined between the inclined support plates (32); And a plurality of auxiliary swash plates 36 provided inside the inclined surface of the inclined finish plate 34.

At this time, the inclined finishing plate 34 is formed of an upward flow separating plate and can maintain an angle of 40 to 80 with respect to the horizontal direction, but it is preferable to maintain the angle of 60 with respect to the horizontal direction.

The auxiliary swash plate 36 is installed in each of the inclined finishing plates 34 at 30 to 120 ° and preferably 2 to 4, and the angle is preferably maintained at 70 to 90 °.

The auxiliary swash plate 36 may maintain a constant interval of 20 to 100 mm, but preferably maintains a 50 mm interval. A plurality of such inclined finishing plates 34 are arranged at regular intervals. Therefore, the space between each inclined finishing plates forms a series of parallel flow paths.

On the other hand, as shown in FIG. 5, a process water overflow channel device 40 for discharging process water having passed through the slope finishing plate 34 is provided in the upper region of the slope settling plate 30.

The process water overflow channel device 40 includes a supply part 42 having one end fixed to the partition 23 and formed with a weir 42a to which process water is supplied; And a discharge section 44 formed at the other end of the supply section 42 so as to communicate with the other end of the supply section 42 and connected to the other side of the settling tank 23 to discharge the treated water to the filtration apparatus 60.

At this time, the other side of the settling tank 22 is formed so that the discharge portion 44 of the treated water overflow channel device 40 can be installed, and the treated water is discharged to the filtration device 60 through the weir 44a.

On the other hand, the weirs 42a and 44a of the treated water overflow channel apparatus 40 are formed in a triangle or a quadrangle, and are uniformly formed to guide the flow of treated water past the inclined finishing plate 34 . Accordingly, it is possible to help the flow between the plurality of inclined finishing plates 34 to be constant.

1 and 5, the sludge circulation means 50 is provided in the sedimentation tank 22 in the lower region of the slope settling plate 30, and the swirling circulation flow of the slope settling plate 30 is formed, The sludge can be precipitated more rapidly along these circulation streams and the part of the precipitated sludge can be recycled to the flocculation reaction section 14 to more effectively induce floc formation in the flocculation reaction section 14 .

That is, the sludge circulation means 50 includes a circulation pipe 52 communicating between the lower portion of the sedimentation tank 22 and the flocculation reaction portion 14; And a circulation pump 54 mounted on the circulation pipe 52 for forcibly discharging the sedimented sludge to the flocculation reaction unit 14. [ At this time, one side of the circulation pipe 52 is provided with a discharge valve 56 which is opened when the sludge is discharged and is closed when the sludge is not discharged, thereby reprocessing the settled sludge.

The filtration device 60 is connected to the sedimentation tank 22 by a connecting member such as a pipe and is connected to the filtration device 60. The filtration device 60 includes a small amount of soluble pollutants contained in the influent water flowing through the treated water- A filtration tank (64) provided with a filtration layer (62) for removing water; And an effluent discharge member 65 provided between the lower portion and the upper region of the filtration tank 64 for discharging the filtered effluent from the filtration layer 62 to the outside.

The filtration layer 62 is provided to be spaced apart from the bottom of the filtration tank 64 and includes a porous pipe 62a having a hole for discharging water, a gravel layer 62b sequentially disposed on the flow pipe 62a, An activated carbon layer 62c, and a sand layer 62d, so that the treated water is filtered out and circulated.

The effluent discharge member 65 includes a discharge pipe 65a provided between the lower end of the filtration tank 64 and the treatment water tank 65c; And an effluent valve 65b provided at one side of the discharge pipe 65a to open when the effluent is discharged and not to be opened when not discharged.

That is, the treated water passed through the filtration layer 62 is discharged to the treatment tank 65c through the discharge pipe 65a, which is opened by the effluent valve 65b constituting the effluent discharge member 65, .

On the other hand, in order to clean the filtration layer 62 by supplying the treatment water between the discharge pipe 65a of the effluent discharging member 65 and the treatment water tank 65c to the upper portion of the filtration layer 62, A layer cleaning means 66 is provided.

The filtration layer cleaning means 66 includes a treatment water supply pipe 67 provided between the discharge pipe 65a and the treatment tank 65c; And a pump 68 provided in the treated water supply pipe 67 for forcibly supplying the treated water to the filtration layer 62 through the treated water supply pipe 67. At this time, one side of the treated water supply pipe 67 is provided with a valve 69 which is opened when the treated water is supplied and closed when not supplied.

In this case, if filtration is not performed well in the filtration tank 64, contaminants are accumulated in the filtration layer 62. Thus, in order to wash the contaminants accumulated in the filtration layer 62, 66 are operated to supply the treated water to the upper portion from the lower portion of the filtration layer 62 through the treated water supply pipe 67 opened by the valve 69 to perform the backwashing.

That is, in order to perform filtration, the valve 69 of the backwash line is opened and the outlet valve 65b is opened to operate the valve. When the backwash is required, the valve 69 is opened, the effluent valve 65b is closed, The pump 68 of the line is operated to perform backwashing so that the sand and activated carbon in the filtration layer 62 float to the upper side and the contaminants therebetween are washed away and the generated backwash water is returned to the upper portion of the filtration tank 64 And is supplied to the water collecting tank 3 as a natural drop through a reverse water supply pipe 70 provided between the water collecting tanks 3. At this time, the height of the filtration tank 64 is higher than the height of the water collecting tank 3, so that the backwash water supply pipe 70 is supplied with water pressure naturally to the water collecting tank 3.

Meanwhile, FIG. 6 is an integrated water treatment apparatus for purifying contaminants including bottom, wastewater, and turbid water according to the present invention by coagulation, sedimentation, and filtration. The line mixer maintains the shape of the irrigation water, Fig. 7 is a plan view of Fig. 6, which shows another embodiment of the integral water treatment apparatus shown in Fig. 1. Fig. Therefore, the same reference numerals are used for the same components.

As shown in FIGS. 6 and 7, in the integrated water treatment apparatus for treating wastewater and ozone and turbid water according to the present invention, contaminants containing wastewater, wastewater and ozone water are collected, and the pump 1 is mounted inside A water collecting tank 3; An inline mixer 11 and a channel mixer 12 connected to the water collecting tank 3 and the piping line 5 for floc (flocculating) the contaminants containing the waste water, waste water, (10) comprising a flocculation reaction unit (14) provided therein; A sedimentation tank 22 provided with an inclined precipitation plate 30 so that flocs formed in the flocculation reaction unit 14 of the flocculation apparatus 10 are efficiently precipitated; A sedimentation unit 20 provided in the lower region of the sedimentation tank 22 and composed of sludge circulation means 50 for re-supplying the sludge to the flocculation reaction unit 14; And a filtration unit 60 partitioned by the second partition 61 on the other side of the sedimentation tank 22 and removing fine microfluxes that have not been treated in the sedimentation tank by filtration or adsorption to improve water treatment efficiency.

The coagulation reaction unit 14 is charged with a flocculant and a pH adjuster for floc formation of particles and a polymer flocculant for floc formation of larger particles.

At this time, the inline mixer 11 includes a plurality of mixer elements 11a made of tubes having an appropriate diameter, and these mixer elements 11a are vertically or horizontally stacked one by one or two to five in a zigzag manner The waste water, the waste water, and the turbid water are kept mixed to be mixed.

On the other hand, in the front portion of the inline mixer 11, an aluminum-based inorganic coagulant such as aluminum sulfate, aluminum chloride or the like, and an iron coagulant inorganic coagulant, and a pH adjuster such as sulfuric acid, hydrochloric acid and caustic soda, .

The channel mixer 12 includes a plurality of channel mix elements 12a each having a diameter 2 to 10 times larger than that of the inline mixer 11. The number of the channel mixer elements 12a is 5 to 10, The inline mixer 11 constituted as a set is vertically or horizontally stacked in one stage or two to ten stages so that the lower and wastewater flowing into the inside and the turbine flows in a zigzag pattern .

At this time, it is preferable that the front end of the channel mixer 12 is provided with a sludge inlet through which the introduction of the polymer coagulant such as polyacrylamide, polyamine, and poly-dide membrane flows through the coagulant inlet port and the sludge circulation section of the swash plate sedimentation tank.

The slope settling plate 30 is provided in the upper region between the first partition 41 and the second partition 61 so that the effect of increasing the sedimentation efficiency while minimizing the water area loading rate in the sedimentation tank 22 can be obtained Respectively.

That is, the inclined precipitation plate 30 includes a pair of inclined support plates 32 fixed to the upper region between the first and second partition plates 41 and 61; A plurality of inclined finishing plates (34) inclined between the inclined support plates (32); And a plurality of auxiliary swash plates 36 provided inside the inclined surface of the inclined finish plate 34.

At this time, the inclined finishing plate 34 is formed of an upward flow separating plate and can maintain an angle of 40 to 80 with respect to the horizontal direction, but it is preferable to maintain the angle of 60 with respect to the horizontal direction.

It is preferable that the auxiliary swash plate 36 is installed at 2 to 4 positions in the range of 30 to 120 ° with respect to each of the inclined finish plates 34, and the angle is preferably maintained at 70 to 90 °.

The auxiliary swash plate 36 can maintain a constant gap of 20 to 100 mm, but a gap of 50 mm is preferable. A plurality of such inclined finishing plates 34 are arranged at regular intervals. Therefore, the space between each inclined finishing plates forms a series of parallel flow paths.

On the other hand, on the upper side of the inclined precipitation plate 30, a treated water overflow channel device 40 for discharging the treated water that has passed through the inclined finishing plate 34 is provided (see FIGS. 5 and 7).

The process water overflow water channel device 40 includes a supply part 42 having one end fixed to the first partition 41 and formed with a weir 42a to which process water is supplied; And a discharge portion 44 formed in the other end of the supply portion 42 so as to communicate with the other end of the supply portion 42 and formed with a weir 44a communicating with the second partition 61 so that the treated water is discharged to the filtration unit 60.

At this time, the second partition 61 is formed so as to be stepped so that the discharge portion 44 of the device 40 can be installed, and the process water is discharged to the filtration device 60 through the ware 44a.

On the other hand, the weirs 42a and 44a of the treated water overflow channel apparatus 40 are formed in a triangle or a quadrangle, and are uniformly formed to guide the flow of treated water past the inclined finishing plate 34 . Accordingly, it is possible to help the flow between the plurality of inclined finishing plates 34 to be constant.

The sludge circulation means 50 is provided in the sedimentation tank 22 in the lower region of the slope settling plate 30 as shown in FIG. 6 to form the swirling circulation flow of the slope settling plate 30, So that the sludge can be settled more rapidly along the circulation flow and the part of the precipitated sludge can be recycled to the flocculation reaction part 14 to induce floc formation more effectively in the flocculation reaction part 14 will be.

That is, the sludge circulation means 50 includes a circulation pipe 52 communicating between the lower portion of the sedimentation tank 22 and the flocculation reaction portion 14; And a circulation pump 54 mounted on the circulation pipe 52 for forcibly discharging the sedimented sludge to the flocculation reaction unit 14. [ At this time, one side of the circulation pipe 52 is provided with a discharge valve 56 which is opened when the sludge is discharged and is closed when the sludge is not discharged, thereby reprocessing the settled sludge.

The filtration apparatus 60 is provided with a filtration layer 62 for removing a small amount of dissolved contaminants and soluble organic substances contained in the inflow water flowing through the treated water supply and water channel apparatus 40, A filtration tank 64 divided by a filtration tank 61; And an effluent discharge member 65 provided between the lower portion and the upper region of the filtration tank 64 for discharging the filtered effluent from the filtration layer 62 to the outside.

The effluent discharge member 65 includes a discharge pipe 65a provided between the lower end of the filtration tank 64 and the treatment water tank 65c; And an effluent valve 65a provided at one side of the discharge pipe 65a and configured to be opened when the effluent is discharged and not to be opened when the effluent is not discharged.

That is, the treated water passed through the filtration layer 62 is discharged to the treatment tank 65c through the discharge pipe 65a, which is opened by the effluent valve 65b constituting the effluent discharge member 65, .

On the other hand, a filtration layer cleaning means 66 for cleaning the filtration layer 62 is provided between the discharge pipe 65a of the effluent discharge member 65 and the treatment water tank 65c by supplying the treatment water back to the filtration layer 62, Respectively.

The filtration layer cleaning means 66 includes a treatment water supply pipe 67 provided between the discharge pipe 65a and the treatment tank 65c; And a pump 68 provided in the treated water supply pipe 67 for forcibly supplying the treated water to the filtration layer 62 through the treated water supply pipe 67. At this time, one side of the treated water supply pipe 67 is provided with a valve 69 which is opened when the treated water is supplied and closed when not supplied.

In this case, if filtration is not performed well in the filtration tank 64, contaminants are accumulated in the filtration layer 62. Thus, in order to wash the contaminants accumulated in the filtration layer 62, 66 are operated to supply the treated water to the upper portion from the lower portion of the filtration layer 62 through the treated water supply pipe 67 opened by the valve 69 to perform the backwashing.

That is, in order to perform filtration, the valve 69 of the backwash line is opened and the outlet valve 65b is opened to operate the valve. When the backwash is required, the valve 69 is opened, the effluent valve 65b is closed, The pump 68 of the line is operated to perform backwashing so that the sand and activated carbon in the filtration layer 62 float to the upper side and the contaminants therebetween are washed away and the generated backwash water is returned to the upper portion of the filtration tank 64 And is supplied to the water collecting tank 3 as a natural drop through a reverse water supply pipe 70 provided between the water collecting tanks 3. At this time, the height of the filtration tank 64 is higher than the height of the water collecting tank 3, so that the backwash water supply pipe 70 is supplied with water pressure naturally to the water collecting tank 3.

The integrated water treatment apparatus according to the present invention is a more compact technique than the conventional technology due to the use of hydraulic energy according to the flow in the channel to treat various pollutants contained in the wastewater, It is possible to reduce the maintenance cost by reducing the energy consumption and the coagulant to be used, and it is possible to reduce the maintenance cost by improving the efficiency of the treatment. It is advantageous that it can be easily applied at the water treatment site.

Experiments were conducted as follows for the purpose of determining the treatment effect on the wastewater, wastewater, and ozone water by using the integrated water treatment apparatus of coagulation-sedimentation-filtration according to the present invention.

[Experimental Example 1]

For the purpose of determining the coagulation effect of the line mixer and the channel mixer according to the present invention, a method of mixing the liquid mixture by using a mechanical mixing method using Jar-tester and a coagulation reaction part comprising the line mixer and the channel mixer of the present invention The number of granules according to the particle diameter of the particles formed in the coagulation experiment was compared.

Figure 1 shows the result of particle size analysis according to the two types of mixing conditions. The amount of flocculant injected was 30 ppm, and the flocculation pH condition was 6.9 ± 0.2. Agitation and reaction time conditions in a mechanical mixing method using a jar-tester were carried out under the conditions of 1 minute of rapid mixing and a reaction time of 30 minutes of agglomeration by slow mixing. The mixing conditions according to the present invention were rapid mixing Was used as a line mixer, and full mixing was performed using a channel mixer. The influent flow rate was set at 1 m 3 / day.

As shown in FIG. 1, the number of particles formed by the collision of particles was larger in the aggregation reaction part composed of the line mixer and the channel mixer of the present invention than the mechanical mixing method using the jar-tester. It can be seen that the mixing energy of the hydraulic flow according to the flow rate in the flocculation reaction unit composed of the line mixer and the channel mixer of the present invention provides more collision opportunities for the underwater particles than the mechanical mixing energy, It can be confirmed that there are many particles.

Figure 1. Particle size analysis by mechanical mixing (Jar-tester) and the present invention (Line mixer + Channel mixer)

[Experimental Example 2]

For the purpose of determining the sedimentation effect in the coagulation reaction unit and the slope plate settling tank composed of the line mixer and the channel mixer according to the present invention, a general settling tank, a slope plate settling tank (single slope plate), a slope plate settling tank composed of a main slope plate and an auxiliary slope plate , And the number of particles and the turbidity of the number of symbols flowing out from the sedimentation experiments according to the shape of the sedimentation basin were compared. Figure 2 shows the results of particle size analysis by sedimentation experiments.

Figure 2. Particle size analysis by precipitation type

As shown in FIG. 2, the particle size of the sedimentation tank using the swash plate settler composed of the main swash plate and the auxiliary swash plate of the present invention was smaller than that of the single swash plate and the general sedimentation tank, . It is considered that this is because the auxiliary swash plate is installed on the swash plate, and thus, the chance of collision of the particles is provided by the circulation flow formed between the main swash plate and the auxiliary swash plate. In addition, the turbidity of the slope plate of the present invention was better than that of the single slope plate and the general precipitation tank.

Thus, it can be confirmed that the swash plate settling tank composed of the main swash plate and the auxiliary swash plate of the present invention has a good sedimentation efficiency.

division Enemy turbidity Coagulation - turbidity after precipitation Invention Sole slope settling General deposit Sewage treated water 3.2 0.4 0.8 1.7 Enemy of Nakdong River 8.5 0.6 1.0 2.1

1: Pump 3: Sump tank
5: Piping line 10: Flocculation device
11: inline mixer 11a: mixer element
12: Channel mix 12a: Channel mixer element
14: coagulation reaction part 20: sedimentation device
22: Settling tank 23: Partition
41: first partition 30: inclined precipitation plate
32: inclined support plate 34: inclined finishing plate
36: auxiliary swash plate 40: treated water washing water channel device
50: sludge circulation means 52: circulation piping
54: circulating motor 56: discharge valve
60: Filtration device 61: Second partition
62: filtration layer 64: filtration tank
65: effluent discharge member 66: filtration layer cleaning means
67: treated water supply pipe 68: pump
69: valve 70: reverse water supply pipe

Claims (10)

A water collecting tank (3) in which pollutants including waste water, wastewater, and mist / turbid water are collected and equipped with a pump (1); An inline mixer 11 and a channel mixer 12 connected to the water collecting tank 3 and the pipe line 5 for supplying contaminants to floc (10);
A sedimentation tank 22 provided with an inclined precipitation plate 30 so that flocs formed in the flocculation reaction unit 14 are efficiently precipitated; And a sludge circulation means (50) provided in the lower region of the sedimentation tank (22) for re-supplying the sludge to the flocculation reaction unit (14). And
A filtration tank 64 connected to the sedimentation tank 22 and having a filtration layer 62 for removing soluble contaminants and soluble organic substances that have not been treated in the sedimentation tank; A filtration device 60 provided in the lower end region of the filtration tank 64 and composed of an effluent discharge member 65 for discharging the effluent filtered out from the filtration layer 62 to the outside;
And a control unit for controlling the operation of the water treatment unit. The in-line mixer according to claim 1, wherein the in-line mixer (11) comprises a plurality of mixer elements (11a)
The mixer elements (11a) are vertically or horizontally stacked one by one or two to five in a zigzag manner so as to mix the bottom, wastewater, and turbid water while maintaining the flow thereof. Integrated water treatment system for treatment. 2. The apparatus of claim 1, wherein the channel mixer (12)
And a plurality of channel mix elements 12a made of a tube having a diameter 2 to 10 times larger than that of the inline mixer 11,
The channel mixer elements 12a are stacked vertically or horizontally in a single stage or in two to ten stages of an inline mixer 11 comprising five to ten sets of the channel mixer elements 12a,
Wherein the water, wastewater and ozone water flowing into the water tank are configured to maintain a zigzag flow in a continuous or parallel manner. The apparatus according to claim 1, wherein the inclined precipitation plate (30)
A pair of inclined support plates 32 fixed between the partition 23 and the other side of the settling tank 22;
A plurality of inclined finishing plates 34 disposed between the inclined support plates 32 and inclined at 40 to 80 degrees with respect to the horizontal direction;
And a plurality of auxiliary swash plates (36) inclined at an angle of 30 to 120 ° to the inside of the inclined surface of the inclined finish plate (34). 2. The apparatus according to claim 1, wherein the sludge circulation means (50)
A circulation pipe (52) communicating between the lower part of the settling tank (22) and the flocculation reaction part (14);
A circulation pump 54 installed on the lower part of the settling tank 22 for forcibly discharging the sludge to the flocculation reaction unit 14 through the circulation pipe 52;
And a discharge valve (56) provided at one side of the circulation pipe (52). The filter medium of claim 1, wherein the filtration layer (62)
A perforated pipe 62a provided to be spaced apart from the bottom of the filtration tank 64 and having a hole for discharging water;
And a gravel layer (62b), an activated activated carbon layer (62c), and a sand layer (62d) sequentially disposed on the flow conduit (62a). The washing machine according to claim 1, further comprising filter layer cleaning means (66) between the discharge pipe (65b) of the effluent discharge member (65) and the treatment tank (65c)
The filtration layer cleaning means 66
A treatment water supply pipe 67 provided between the discharge pipe 65a and the treatment tank 65c;
A pump 68 provided in the treated water supply pipe 67 for forcibly supplying the treated water to the filtration layer 62 through the treated water supply pipe 67;
And a valve (69) provided at one side of the treated water supply pipe (67). The water treatment system according to claim 6, further comprising a backwash water supply pipe (70) for supplying backwash water generated when cleaning the filtration layer (62) to the water collecting channel (3) between the upper part of the filtration tank (64) and the water collecting tank And a water treatment apparatus for treating waste water and waste water. A water collecting tank (3) in which pollutants including waste water, wastewater, and mist / turbid water are collected and a pump (1) is installed therein;
An inline mixer 11 and a channel mixer 12 connected to the water collecting tank 3 through a pipeline 5 to flocize flocculated water with pollutants including waste water, (10) comprising a flocculation reaction unit (14) provided with a flocculation reaction unit (14);
A sedimentation tank 22 provided with an inclined precipitation plate 30 so that flocs formed in the flocculation reaction unit 14 are efficiently precipitated; A sedimentation unit 20 provided in the lower region of the sedimentation tank 22 and composed of sludge circulation means 50 for re-supplying the sludge to the agglomeration reaction unit 14; And
A filtration tank 64 provided at one side of the settling tank 22 with a filtration layer 62 partitioned by a second partition 61 to remove soluble contaminants and soluble organic substances that have not been treated in the settling tank; A filtration device 60 provided in the lower end region of the filtration tank 64 and composed of an effluent discharge member 65 for discharging the effluent filtered out from the filtration layer 62 to the outside;
And a control unit for controlling the operation of the water treatment unit. 10. The apparatus of claim 9, wherein the channel mixer (12)
And a plurality of channel mix elements 12a made of a tube having a diameter 2 to 10 times larger than that of the inline mixer 11,
The channel mixer element 12a includes an inline mixer 11 having five to ten sets of one or two stages, one or two stages, vertically or horizontally, as a first partition 41 in one side of the settling tank 22, And the water, wastewater and ozone water flowing into the inside are stacked in the partitioned space to maintain zigzag type flow. The integrated water treatment apparatus for treating wastewater, ozone, and turbid water.
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