JP4452552B2 - Turbid water and muddy water treatment equipment - Google Patents

Description

  The present invention relates to a muddy water / muddy water treatment apparatus and method for purifying muddy water / muddy water (thick muddy water and thin muddy water) generated from construction work, and more particularly to tunnel construction, shielding. The present invention relates to a muddy water / muddy water treatment device suitable for construction, dredging, pile construction, mountain retaining work, dam construction, creation work, and other work mainly involving excavation.

  The applicant of the present application proposes “a muddy water treatment system and its treatment method” in Patent Document 1. That is, in the “muddy water treatment system” of Patent Document 1, a flocculant is added to muddy water from which sand and gravel have been removed to generate flocs to form floc muddy water, and floc muddy water introduced from the reaction unit. A fresh water generating device that purifies and discharges as fresh water, the fresh water generating device having a size smaller than that of the receiver and arranged in the receiver to introduce floc turbid water at least on the circumferential side micropores And a porous wall filtration means for discharging fresh water after filtration into the receiver, and is described as a system for processing a large amount of solid-liquid separation and filtration after floc generation in muddy water in a short time. Yes.

  In addition, the applicant of the present application has proposed “Patent Water / Muddy Water Treatment Apparatus and Treatment Method” of Patent Document 2. That is, the “turbid water / muddy water treatment apparatus” of Patent Document 2 includes a storage tank for storing muddy water / muddy water, a flocculant charging means for charging the turbid water / muddy water in the storage tank, a flocculant and muddy water / It is described that the apparatus includes a mixing device that mixes muddy water to generate flocs, and a filtration device that separates flocs generated by the mixing device. Further, in the “turbid water / muddy water treatment device” of Patent Document 2, the mixing device has a merging / dividing means for merging and dividing the turbid water / muddy water and the flocculant, and the filtering device is a floc produced by the mixing device. In order to separate water and water, it is described that the apparatus includes a porous wall filtration means provided with a large number of micropores and a receiver for collecting water discharged from the porous wall filtration means.

And by the structure of patent document 2, since it can mix only by letting muddy water, mud, and a flocculant pass through the deformation | transformation channel | path of a mixing apparatus, and a floc can be produced | generated by this, the time required for floc separation can be reduced.
JP 2002-35800 A JP 2002-219471 A

  The present invention further develops the technical ideas of Patent Document 1 and Patent Document 2, shortens the time required for floc separation, and can cope with changes in the concentration of muddy water / muddy water. It is an object to provide an apparatus.

The present invention is a muddy water / muddy water treatment apparatus, and has the following configuration in order to solve the above technical problem.
That is, the muddy water / muddy water treatment apparatus of the present invention has a storage tank (11) for storing muddy water / muddy water,
A flocculant charging means (14, 15) for charging a flocculant into the muddy water / muddy water;
A mixing device (17A, 17B) that mixes the flocculant with the muddy water / muddy water to generate floc;
A coagulation reaction tube (50) for further generating the floc and separating the floc from water;
The aggregation reaction tube (50) has a cylindrical passage,
The cylindrical passage is partitioned by a plurality of weirs from the inlet portion toward the outlet portion ,
The weir is a partition plate in which a plurality of inclined members inclined at a predetermined angle with respect to the passing direction of the muddy water and muddy water are connected at intervals, and
And a mounting member that is provided in a plurality from the inlet portion to the outlet portion of the cylindrical passage and detachably mounts the partition plate in the cylindrical passage .
In addition, the muddy water / muddy water treatment apparatus of the present invention may include a filtration device (20) for filtering the muddy water / muddy water that has passed through the mixing device (17A, 17B) and the aggregation reaction tube (50).

According to this configuration, the flocculant added to the turbid water is mixed with the turbid water by the mixing device, and floc growth and separation water are promoted by the weir in the aggregation reaction tube. Therefore, a large amount (for example, 100 m 3 / hour or more) of turbid water treatment can be instantaneously separated into solid and liquid. In addition, the solid-liquid separation is almost completed at the time of entering the filtration device (the time of exiting the agglomeration reaction tube), and the treated water is discharged smoothly from the mesh of the filtration device, so a large amount of turbid water treatment (solid-liquid separation) ) Is possible.

  According to this configuration, even when the concentration of muddy water is changed, floc quality control can be easily performed by moving the partition plate installed in the aggregation reaction tube.

Further, the turbid water-mud processing apparatus of the present invention, the agglutination reaction tube (50), characterized in that before miracle in the cylindrical upper part has an opening capable detachable.

  According to this configuration, since the upper part of the agglomeration reaction tube is open, the management can be directly observed, and the state of flock growth and the promotion of separated water can be determined.

According to the present invention, a larger amount of muddy water / muddy water can be instantly solid-liquid separated.
In addition, when the concentration of turbid water and muddy water to be treated changed, floc quality control was performed by increasing or decreasing the number of mixing devices, but this quality control can be easily performed by using a coagulation reaction tube. Become.

Hereinafter, embodiments of a muddy water / muddy water treatment apparatus and a treatment method according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a muddy water / muddy water treatment apparatus 1 according to the present invention. This muddy water / muddy water treatment apparatus 1 includes a storage tank 11 for storing muddy water / muddy water 10 supplied from the outside, and a flocculant input for supplying flocculants 12, 13 to the muddy water / muddy water 10 pumped from the storage tank 11. Means 14 and 15, mixing devices 17 </ b> A and 17 </ b> B that mix flocculants 12 and 13 and turbid water / muddy water 10 to generate floc 18, and flocculant reaction tube 50 that further generates floc 18 and separates floc 18 from water. And a filtering device 20 that separates the flocs 18 generated in the mixing devices 17A and 17B and the aggregation reaction tube 50 from the water 19.

As muddy water / muddy water 10, pond, lake, natural muddy water / muddy water, natural water, tunnel work, shield work, dredging work, pile work, mountain retaining work, dam work, creation work, and other work mainly involving excavation It can handle all kinds of turbid water and mud water (those with a high concentration are called muddy water and light things are called muddy water). Storage tank 1 for temporarily storing such muddy water / muddy water 10
1 is provided with a submersible pump 21. Further, a muddy water / muddy water supply pipe 25 is connected to the side of the storage tank 11.

  A pipe 22 extending to above the storage tank 11 is connected to the outlet of the submersible pump 21, and mixing devices 17 </ b> A and 17 </ b> B are attached to the tip of the pipe 22. In the present embodiment, two mixing devices 17A and 17B are provided with the short tube 23 interposed therebetween. These mixing devices 17A and 17B are arranged horizontally. A coagulation reaction tube 50 extending to above the filtration device 20 is connected to the outlet of the subsequent mixing device 17B.

[Description of flocculant charging means]
Of the flocculant charging means 14 and 15, the first flocculant charging means 14 disposed on the lower side includes a first tank 26 and a pump 27 connected to the first tank 26. In the first tank 26, for example, a polymer flocculant such as a polymer floc forming auxiliary agent is placed as the first flocculant 12.

  The second flocculant charging means 15 includes a second tank 28 and a pump 29 connected to the second tank 28. In the second tank 28, for example, PAC (polyaluminum chloride) is placed as the second flocculant 13. The second flocculant charging means 15 is often installed on the ground.

  The first flocculant 12 is charged from the pipe 22 immediately before the front-stage mixing device 17A, and the second flocculant 13 is charged from the short tube 23 between the front-stage mixing device 17A and the rear-stage mixing device 17B. By introducing these first and second flocculants 12 and 13 into the muddy water / muddy water 10, the flocs 18 can be formed by combining particles in the muddy water / muddy water 10 as described below.

  That is, the colloidal particles in the turbid water / mud water 10 are generally negatively charged, and the particles are repelled from each other due to mutual negative charges, and are in a stable dispersed state without contact. In order to break this stable state, a coagulant may be added, ion particles having a charge opposite to that of the colloid, etc. may be added to neutralize the charge on the particle surface, thereby generating a binding force between the particles.

  Further, the particles that are easily bonded are collided with each other, and this is repeated to advance the agglomeration (crosslinking action) to form the floc 18. In this embodiment, PAC is used as a charge neutralizing agent for these colloidal particles, and a polymer flocculant such as activated silicic acid or an anion flocculating agent is used as an agent for promoting the crosslinking action. ing.

  The timing, order, and amount of the flocculants 12 and 13 to be added to the turbid water / mud water 10 vary greatly depending on the components and viscosity of the turbid water / mud water 10 and cannot be determined unconditionally. Analyze and judge. In some cases, the first flocculant 12 and the second flocculant 13 are alternately and repeatedly fed several times.

  In such a case, by setting the first flocculant 12 and the second flocculant 13 to be different from each other, it is possible to provide an input time difference in advance. Each flocculant 12 and 13 can be managed so that a mass effect can be obtained.

[Description of mixing device]
Next, the mixing device 17A will be described, but the same applies to the mixing device 17B. This mixing device 17A repeats the division and merging into muddy water / mud water 10 and flocculants 12, 13. That is, as shown in FIG. 2, the mixing device 17A basically connects two types of the first element 31A and the second element 31B to form one block, and an appropriate number of blocks are formed as necessary. Connected. FIG. 1 illustrates a case where both mixing devices 17A and 17B are configured by one block of the first element 31A and the second element 31B.

  The first element 31A has square ends, and flanges F for connecting the second element 31B are formed at both ends. A plurality of bolt holes f1 are formed in these flanges F and F, and adjacent elements 31A and 31B are connected to each other by bolting ends using these bolt holes f1.

  The first element 31A includes two deformation passages 32 and 33 arranged side by side in the same direction. A vertical partition wall 34 is provided at one end of the first element 31A along the central axis in the vertical direction. Thus, one square end opening is divided into two vertically long openings. These vertically long left and right openings serve as the inlet portions 32a and 33a of the two deformation passages 32 and 33, respectively.

  At the other end of the first element 31A, a horizontal partition wall 35 is provided along the horizontal central axis. Thus, one square end opening is divided into two horizontally long openings. These horizontally long upper and lower openings serve as outlet portions 32b and 33b of the two deformation passages 32 and 33, respectively.

  In other words, the vertical partition wall 34 provided at the end portion on the inlet side of the first element 31 and the horizontal partition wall 35 provided at the end portion on the outlet side are arranged at positions rotated 90 degrees relative to each other. And the deformation | transformation channel | paths 32 and 33 are changing the cross-sectional shape gradually from the vertically long entrance parts 32a and 33a to the horizontally long exit parts 32b and 33b so that it may demonstrate below.

  As for the mode of deformation, the cross-sectional areas at arbitrary positions are the same from the inlet portions 32a and 33a to the outlet portions 32b and 33b, and only the cross-sectional shape continuously changes. .

  That is, the inlet portions 32a and 33a have a square cross-sectional shape at the intermediate portion between the inlet portions 32a and 33a and the outlet portions 32b and 33b. Further, the outlet portions 32b and 33b are formed to have a rectangular shape that is long in the horizontal direction Y perpendicular to the vertical direction X. The lengths of the deformation passages 32 and 33 are the same.

  In the second element 31B, the inlet portions 36a and 37a are rectangles that are long in the vertical direction X in the figure, and the cross-sectional shape is a square at the intermediate portion between the inlet portions 36a and 37a and the outlet portions 36b and 37b. . Further, the outlet portions 36b and 37b are formed to have a rectangular shape that is long in the horizontal direction Y perpendicular to the vertical direction X. The lengths of the deformation passages 32 and 33 are the same.

  As described above, the first element 31A and the second element 31B have different communication modes in the deformation passages 32, 33, 36, and 37. That is, in the first element 31A, the material to be mixed (turbid water / muddy water 10 and the first flocculant 12) entering from the left inlet portion 32a in FIG. 2 is discharged from the upper outlet portion 32b through the deformation passage 32. However, in the second element 31B, the mixed material that has entered from the left inlet portion 36a in FIG. 2 passes through the deformation passage 36 and is discharged from the lower outlet portion 36b. The other deformation passages 33 and 37 are opposite to this.

  The first element 31A and the second element 31B are connected by bolts with the flange F at the inlet end of the second element 31B being in close contact with the flange F at the outlet end of the first element 31A.

  Thereby, in the connection part of 2 types of elements 31A and 31B, the exit part 32b of the deformation | transformation channel | path 32 in one 1st element 31A is the upper half of the entrance part 36a of the deformation | transformation channel | path 36 in the 2nd element 31B of the other element. And the upper half of the inlet 37a of the deformation passage 37. The other deformation passages 33 are substantially the same except that the upper and lower sides are different.

  For this reason, half of the materials to be mixed that have passed through the deformation passages 32 and 33 in one first element 31A enter the respective deformation passages 36 and 37 of the other second element 31B, thereby substantially joining. However, regarding the mixed material that has passed through one deformation passage, for example, the deformation passage 32, the material is divided in half at the connection portion between the two elements 31A and 31B.

  Accordingly, the outlet portions 32b, 33b, 36b, and 37b of the deformation passages 32, 33, 36, and 37 formed at the outlet side end portion and the inlet side end portion that are the connecting portions of the two elements 31A and 31B, The inlet portions 32a, 33a, 36a, and 37a constitute a merging and dividing means for the material to be mixed. If such elements 31A and 31B are connected in series and alternately as shown in FIG. 2, a joining and dividing means for mixed materials is formed at each connecting portion.

[Description of agglomeration reaction tube]
As shown in FIG. 3, the aggregation reaction tube 50 has a cylindrical passage, and the cylindrical passage is a partition plate that is a plurality of (for example, four) weirs from the inlet portion 52 toward the outlet portion 53. It is partitioned by 60. The aggregation reaction tube 50 has an opening 51 to which the partition plate 60 can be attached and detached at the upper part of the tube.

  As shown in FIG. 4, the aggregation reaction tube 50 is provided with mounting members 54 a to 54 d for detachably mounting the partition plate 60 in the cylindrical passage. The mounting members 54a to 54d are provided at four locations from the inlet portion 52 to the outlet portion 53 of the cylindrical passage (see FIG. 3).

  As shown in FIG. 5, the partition plate 60 is formed by connecting a plurality of inclined members 62 a to 62 e inclined at a predetermined angle with respect to the passing direction of muddy water and muddy water and a plurality of inclined members 62 a to 62 e at intervals. The frame 61 and the handle 63 used when moving the partition plate 60 are provided.

  The mounting members 54 a to 54 d are provided across the cylindrical passage. When the partition plate 60 is inserted downward along the mounting members 54 a to 54 d from above the opening 51, the partition plate is placed in the aggregation reaction tube 50. 60 can be locked.

  In addition, by increasing the number of partition plates 60 installed in the aggregation reaction tube 50 or moving the muddy water from the inlet portion 52 that is one end portion of the cylindrical passage toward the outlet portion 53 that is the other end portion, It can respond to changes in the concentration of turbid water and can easily perform floc quality control.

  As shown in FIG. 3, the inlet portion 52 of the cylindrical passage is brought into close contact with the flange F of the mixing device 17 </ b> B and connected by bolts. Then, the muddy water mixed is supplied to the aggregation reaction tube 50 side through the opening 55 (see FIG. 6A) connected to the inlet or outlet of the mixing device 17B. And the separated water processed in the aggregation reaction tube 50 is discharged | emitted to the filtration apparatus 20 side from the lattice hole 56 provided in the exit part 53 side.

Next, the operation of this apparatus will be described with reference to FIG.
As shown in FIG. 1, turbid water / muddy water 10 and a first flocculant 12 are introduced into and mixed in the previous mixing device 17A. As a result, a certain amount of floc 18 is generated, and floc 1
8 is sent as floc muddy water 16 in which muddy water 10 and muddy water 10 are mixed. The floc muddy water 16 delivered from the preceding mixing device 17A is supplied to the subsequent mixing device 17B via the pipe 23.

  At this time, the second flocculant 13 is charged from the second flocculant charging means 15 into the pipe 23 and mixed into the floc turbid water 16 in the pipe 23. These floc turbid water 16 and the second flocculant 13 are mixed in the mixing device 17B at the subsequent stage, and almost all the particles in the floc turbid water 16 become floc 18.

  The floc turbid water 16 delivered from the subsequent mixing device 17B is then charged into the agglomeration reaction tube 50. The agglomeration reaction tube 50 is provided with a reaction time after the coagulant to be used (polymer flocculant, PAC (polyaluminum chloride)) is mixed with turbid water or mud water, so that growth of floc 18 and promotion of separated water are performed. Is called. Therefore, at the time of entering the filtration device 20 of the next step (the time of exiting the aggregation reaction tube 50), the solid-liquid separation is almost completed, and the treated water is smoothly discharged from the mesh of the filtration device 20, so a large amount Turbid water treatment (solid-liquid separation) can be performed. Further, by moving the plurality of partition plates 60 provided in the agglomeration reaction tube 50, it is possible to make fine adjustments to compensate for the lack of stirring intensity by the mixing devices 17A and 17B. Therefore, even when the concentration of muddy water and muddy water to be treated changes, management that can easily create the maximum flock by this adjustment can be performed.

  The floc turbid water 16 delivered from the agglomeration reaction tube 50 is then put into the filtration device 20. The filtering device 20 includes a box-shaped receiver 40 having an open upper surface, a porous wall body 41 as a porous wall filtering means disposed at a substantially central position of the receiver 40, and water 19 in the receiver 40. And a pump 42 for discharging the gas to the outside.

  The porous wall body 41 is provided with a large number of micropores 43 on the peripheral wall so that the filtered water 19 is discharged from the micropores 43 on the peripheral wall while receiving the floc muddy water 16 and leaving only the floc 18 inside. It has become.

  In the present embodiment, the perforated wall body 41 includes a long rectangular bottomed grid frame having an open upper surface, and a metal wire mesh that stretches and supports the bottomed grid frame to form a four-side support wall. And a mesh body that is supported by these grid-like frames and a metal wire mesh and is arranged so as to surround the peripheral side surface. The mesh body is made of a synthetic material flexible material sheet in which the above-described micropores 43 are formed, and is appropriately fixed by a fixing means inside the metal mesh.

  A suitable mesh body is selected according to the properties of the floc 18 to be processed. In other words, the mesh body should have flexibility in addition to flexibility, or a material made of cloth, a processed product of paper and synthetic resin, a thin metal punching board, foil, etc., as necessary. Can do. Furthermore, it is also possible to arrange a plurality of mesh bodies with a plurality of intervals.

  When the floc turbid water 16 flows into the filtration device 20, the water 19 in the flock turbid water 16 is discharged from a large number of minute holes 43 in the peripheral wall and stored in the receiver 40 as shown in FIG. 1. Further, the floc 18 in the floc muddy water 16 is left in the porous wall body 41. The floc 18 is discharged by, for example, a backhoe when it accumulates to some extent. Since the water 19 in the receiver 40 has a very small particle content, it can be drained to the outside as it is.

As described above, the turbid water / muddy water treatment apparatus 1 of the present invention only needs to flow the turbid water / muddy water 10 to which the flocculants 12 and 13 are added to the deformation passages 32, 33, 36, and 37 of the mixing devices 17A and 17B. The floc 18 can be generated by mixing and stirring, and the flocculant added to the turbid water is mixed into the turbid water by the mixing device by incorporating the flocculent reaction tube 50 into the turbid water treatment apparatus 1. And the separation water is promoted. Then, a large amount (for example, 100 m ³ / hour or more) of turbid water treatment can be instantaneously solid-liquid separated.

  In addition, even when the concentration of muddy water changes, the quality control of the floc 18 can be easily performed by moving the partition plate 60 installed in the aggregation reaction tube 50. In this management, since the upper part of the agglomeration reaction tube 50 is open, the growth of the floc 18 and the promotion status of the separated water can be judged by direct visual observation.

  Therefore, the apparatus can be miniaturized and power consumption can be reduced as compared with the case where a conventional thickener or filter press is used. Further, since the time required for generating the floc 18 can be shortened, the time for treating muddy water and muddy water can be shortened. Furthermore, since the floc 18 that is industrial waste can be separated at a high concentration, the amount of industrial waste can be greatly reduced.

  In the present embodiment, when the adjacent elements 31A and 31B of the mixing device 17A are connected or when the mixing device 17A and the agglomeration reaction tube 50 are connected, the flanges F and F formed in a square shape are connected to each other. Although the case of connecting by bolting (see FIG. 2) has been described, the connection (joint) method between apparatuses in the present invention is not limited to bolting. For example, as another embodiment, a method may be used in which both end portions of each device are formed into round flanges, and these flanges are connected to each other by a Victorian joint.

(Experimental example)
Using the muddy water / muddy water treatment apparatus 1 of the present invention, a treatment test of muddy water / muddy water 10 having an SS concentration of 1,100 ppm to 84,000 ppm (mg / l) was performed. FIG. 7 shows the test results. In this experimental example, two mixing devices 17A and 17B were installed in series for mixing and stirring the polymer flocculant. Further, after the PAC injection, the subsequent agglomeration reaction tube 50 was installed with a total of four mixing devices in series in two units. The aggregation reaction tube 50 was adjusted with a movable partition plate 60.

  As a result, even if the concentration of muddy water / muddy water is changed, it is possible to perform the treatment without changing the number of the mixing devices 17A and 17B by moving and adjusting the partition plate 60 installed in the aggregation reaction tube 50. confirmed.

  The addition of the polymer flocculant is how to stably and uniformly diffuse into the turbid water having a high flow rate. Therefore, in this experiment, a MONO type metering pump was used so as to enable press-fitting.

  On the other hand, since PAC is much less added than the polymer flocculant, a 14B size (inner diameter 350 mm) injection tube portion was provided instead of the press-fitting method. Since the outlet sizes of the mixing devices 17A and 17B have an inner diameter of 160 mm, they are added using the negative pressure generated in the injection tube.

  Immediately after the addition of a total of four mixing devices 17A and 17B, the flocculant is fully mixed, but the formation of the flocs floc 18 is still in the initial stage, so the floc size is small, The separability between the floc 18 and water is poor, and the supernatant water is still cloudy in this state.

  Therefore, it is necessary to promote the aggregation of flocs. The stronger the floc 18 is made in the process of growing the floc 18, the faster the sedimentation speed in the filtration device (porous wall body) 20 is and the clear treated water is obtained.

Therefore, the agglomeration reaction tube 50 serves to promote the assembly of the flocs 18. That is, the aggregation promotion of the floc 18 is adjusted by a method in which the partition plate 60 on the lattice that can be moved and fixed at an arbitrary position has a role as a weir in the aggregation reaction tube 50.

  As a result of the experiment, it was found that when 3 to 4 partition plates 60 are arbitrarily installed, the formation of the floc 18 is stable and the state of the treated water is also good.

  Regarding the change in the aggregation state, the first partition plate 60 had the largest weir effect, and at this stage, growth of floc 18 and promotion of separated water were observed. In the second and subsequent sheets, separation of floc 18 and water has already begun to occur, and it is considered that the flocs 18 and the water are considerably clarified at the time of the agglomeration reaction tube outlet 53, and the agglomeration mechanism is completed at the agglomeration reaction tube outlet 53. From such a result, the growth of the floc 18 is promoted by arbitrarily installing a movable partition plate 60 provided in the agglomeration reaction tube 50 according to the turbid water / muddy water to be treated for quality control. At the time of exiting 50, sufficient solid-liquid separation can be performed.

  Therefore, the treated water exiting the agglomeration reaction tube 50 has already undergone growth of the floc 18 and solid-liquid separation. Therefore, when the treated water falls to the filtration device (porous wall body) 20, the treated water is instantaneously sent by the net. Can be separated.

  Since the floc 18 has grown greatly without being re-mudged when dropped, the treated water can be discharged from the net without being clogged by the net of the filtration device (porous wall body) 20, and this also allows mass treatment. It has become possible.

  In the system shown in Patent Document 2, it was possible to cope with changes in muddy water and muddy water by changing the number of mixing devices. However, in the present invention, the number of mixing devices 17A and 17B is fixed to some extent. Since the partition plate 60 of the agglomeration reaction tube 50 can be moved while being observed, quality control can be easily performed.

  FIG. 7 shows experimental results for various concentrations of turbid water. It can be demonstrated that the treated water has a drainage standard value SS of 25 mg / L or less defined in each prefectural ordinance.

The present invention treats muddy water and muddy water generated from construction work.
The type of work is applicable to the treatment of muddy water and muddy water generated from tunnel construction, shield construction, dredging construction, pile construction, mountain retaining construction, dam construction, creation construction, and other constructions involving excavation.

It is the schematic of the muddy water and muddy water processing apparatus which concerns on this invention. It is an external view of a mixing apparatus. It is a perspective view of an aggregation reaction tube. It is a partially expanded view of an agglomeration reaction tube, and shows a mounted state of a partition plate. It is an external view of a partition plate. FIG. 6A is a partially enlarged view of the aggregation reaction tube, FIG. 6A shows the inlet of the aggregation mixing tube, and FIG. 6B shows the outlet of the aggregation mixing tube. It is a table | surface which shows the best treatment result of muddy water of each turbidity.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turbid water and muddy water processing equipment 10 Turbid water and muddy water 11 Storage tank 12 Polymer flocculant 13 PAC (flocculating agent)
14, 15 Coagulant charging means 17A, 17B Mixing device 18 Flock 19 Water 20 Filtration device 32, 33, 36, 37 Deformation passage 40 Receptor 41 Porous wall body (porous wall filtration means)
50 Aggregation reaction tube 60 Partition plate

Claims (3)

A storage tank (11) for storing muddy water and muddy water;
A flocculant charging means (14, 15) for charging a flocculant into the muddy water / muddy water;
A mixing device (17A, 17B) that mixes the flocculant with the muddy water / muddy water to generate floc;
A coagulation reaction tube (50) for further generating the floc and separating the floc from water;
The aggregation reaction tube (50) has a cylindrical passage,
The cylindrical passage is partitioned by a plurality of weirs from the inlet portion toward the outlet portion ,
The weir is a partition plate in which a plurality of inclined members inclined at a predetermined angle with respect to the passing direction of the muddy water and muddy water are connected at intervals, and
A plurality of mounting members that are provided from the inlet portion to the outlet portion of the cylindrical passage, and detachably mount the partition plate in the cylindrical passage;
A muddy water / muddy water treatment apparatus characterized by comprising:   The turbid water / muddy water treatment apparatus according to claim 1, further comprising a filtration device (20) for filtering the turbid water / muddy water that has passed through the mixing device (17A, 17B) and the aggregation reaction tube (50). . The turbid water / muddy water treatment apparatus according to claim 1 or 2 , wherein the agglomeration reaction tube (50) has an opening to which the weir can be attached and detached at an upper portion of the tube.

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