TW201000409A - Method of flocculating sedimentation treatment - Google Patents

Abstract

A method of flocculating sedimentation treatment for water to be treated, in which the amount of inorganic flocculant used in a water purification treatment system is limited farther than in the prior art and simultaneously the densification and miniaturization of remaining microflocs and flocs are realized to thereby obtaining a clear water of high quality while attaining reduction of the amount of sludge generated. The method of flocculating sedimentation treatment for water (1) to be treated comprises the microflocculation step of microflocculating microparticles suspended in water (1) to be treated in advance; the step of flocculating the microflocs; and the step of sedimentation separation for the flocs. In the method, a tilted plate (8) for flocculation of 5 to 50 mm pitch width is disposed in the final stage of the flocculation step, and the amount of used inorganic flocculant is limited so that as compared with the turbidity of the water (1) to be treated before its passing through the tilted plate (8), the turbidity after the passage is 4/5 or below thereof.

Description

201000409 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a method for agglomerating and precipitating treatment of treated water, which is used in rivers, rainwater, and drainage of factories, etc. Injecting the Russian money collector, and passing through a microflocculation step for forming a fine flocs by agglomerating the fine suspension of the human beings in the treated water, and by After the flocculation step of flocculation of the microflocs by the contact of the existing flocs, the flocs formed in the flocculation step are precipitated and separated in the sedimentation tank, thereby obtaining precipitated water. [Prior Art] The agglomeration and sedimentation treatment of the treated water is used as a pretreatment for sand filtration, and in the agglomerated Shen Dianfang 4, an inorganic aggregating agent is injected into the treated water, and the fine suspended particles contained in the treated water are used. The flocculation is a floc having a diameter that reaches a degree of precipitable separation, and the floc is subjected to precipitation separation by gravity. The agglutination and sedimentation device is roughly divided into a conventional method and a high-speed agglutination/esthetic pool method, and the latter is further divided into a mud circulation method and a sludge bianket method. However, the intrinsic enthalpy in any mode is subjected to precipitation separation after the microflocculation step of the suspended particles and the flocculation step of the microflocs. For the agglomeration treatment method of the present day, the main technical issue is "the type and amount of aggregating agent and agglutination aid required for forming a larger diameter floc. 201000409 is based on the following general formula shown by Smolufoffs. Current agglomeration and sedimentation treatment method, based on the equation of Smoluchowski [Math 1] DN / dt = αβ ni · η . Adhesion rate at the number of gels, fine suspended particles and fine flocs per unit volume α. The efficiency of collision (representing the collision of two particles by the inorganic aggregating agent) Call: the collision frequency of two particles ~ 'the number of particles flowing in the unit of the ship indicates that each unit is called a floc Nj·the number of existing particles in the unit volume, and the speed of formation of the micro-suspended particles and microflocs by the dN/dt expressed by the above formula, based on the above-mentioned Smoluchovsky equation In the agglutination theory, as you can see, as shown in Non-Patent Document 1, the inertia of the conventional process is described as follows: The process of the agglomeration is divided into two parts, and the charge of the fine suspended particles contained in the treated water is And the agglomeration of the suspended particles into a diameter of about 3 (the microflocculation step of the floc is dependent on the Brownian motion (Br〇Wnianm〇ti〇n), on the other hand, the straight through is above 3〇” Microfloc The success of the flocculation step of the flocculation to the extent that the diameter is such that the diameter can be precipitated and separated is affected by whether or not the stirring is performed at a predetermined mixing force. Reporting, if the flocculation is high, the flocculation is broken. On the other hand, if the speed of the non-patent document 2 is mixed, the floc is destroyed, and it is affected by the shearing force step from 4 201000409, thereby causing the flocculation to be stirred at a low speed. The surface deterioration is weaker. The door speed agglutination sedimentation tank is developed by the United States. The fans are affected by the non-patented women and 9 _ as described in the literature. In the microflocculation step, the water with weak agitation intensity is used. Stirring. The enthalpy is used in the process gas. As shown in Non-Patent Document 3, the above-mentioned collision frequency Θ rises in the Smoluchovsky method center, and (4) the increase in the mixing strength is in the liquefaction of the sludge. Type high-speed agglutination sedimentation tank as a pair, 'and: try to improve the high-speed search intensity. However, the conclusion of this report is the same as the mouth of the mouth, that is, the micro-flocculation step is long. Continued stronger: in the case of mixing, that is, increasing the gr value of the high-speed stirring intensity and the tr value of the high-speed stirring time, the 'mother floc will be destroyed, causing the turbidity of the swell water to rise' due to & 'nearly Adopt the above high speed (four) method.

Yiting-like's requirement for improving the filtration of water quality to date is based on the agglomeration and sedimentation treatment in the front stage, which promotes the agglomeration of suspended particles and inhibits flocculation damage, and is highly dependent on inorganic agglutinating agent injection. The operating method of increasing the rate. In particular, in the operation of a high-speed agglomeration sedimentation tank which does not have high-speed agitation, the inorganic aggregating agent injection rate is first raised to the extent that there is no room for improvement. However, for an operation method which is highly dependent on the improvement of the injection rate of the inorganic aggregating agent, although a substantially satisfactory result can be obtained in the precipitation treatment, it may cause other stages in the subsequent filtration treatment and sludge treatment of the precipitation treatment. Technical aspects. That is, due to the increase of the inorganic aggregating agent injection rate, the volume of the floc is 201000409. The coarse particles of the microflocs in the pool, the low-densification and the agglomeration of the precipitated water are in the range of < The amount will rise. As a result, it is necessary to raise the problem of cleaning the frequency of the pool. Further, as for the sludge treatment, the amount of the sludge itself is also increased due to the increase of the inorganic aggregating agent, and the concentration and dehydration of the sludge are lowered, so that sludge treatment is difficult. The root cause of such problems in the prior art mentioned above is the operating method employed, which does not consider (iv) and sludge treatment, although the agglutination m is considered as a system for sludge treatment. Optimized' only pays attention to the formation of larger diameter flocs to achieve the optimization of precipitation treatment. Specifically, because of the fear that the turbidity of the Shendian water will rise with the destruction of the suspected body, the selection is very inefficient. The agglomeration treatment method of the agitation intensity does not take into consideration the high-quality filtration treatment after the realization. In view of the above situation, the following is proposed in the patent document: «X-stacked two-speed agitation tank, and in the first tank, the lower limit of the stirring strength is set, and the tank below the second tank The upper limit of the stirring strength is set, and then the inorganic aggregating agent is injected into each of the high-speed stirring tanks, thereby improving the particle separation efficiency and increasing the concentration of the remaining inorganic aggregating agent (refer to the patent application) Item 6 and the description of the item of claim 6). However, in the case of the above-described configuration provided in Patent Document 1, the effect of setting the stirring strength of the second groove or less to a required value or more is not sufficient, and the degree of injection of the entire inorganic aggregating agent is not obtained. The adjustment is made 'and the benchmarks related to the adjustment are not set, so that 201000409 will be evaluated as achieving the above purpose, which is very insufficient in Patent Document 2, indicating that the fine particles and high-density microflocs are separated by setting However, it is possible to cause the contact material layer to be occluded by touching the material layer, so that the cf microfloc is detained in the shoal treatment which is premised on continuous processing. Because it is not suitable for the month, it is not possible that the above-mentioned fine-grained, high-density microflocs have a residual inorganic gelling agent, which can be reduced to the basic technical requirements of continuous processing. :::: Shishi Shi?, -U.art is therefore * as a method of agglomeration and sedimentation treatment of treated water, in the non-patent literature,: contains a fatal defect. ° has contained the following content: floc easily from The strong production and doubtful use of the agglomeration treatment method of increasing the injection rate of the inorganic aggregating agent by the low inorganic agglutinating agent injection rate and the high scrambling == rr method. However, despite the agglutination The floc formed by the treatment method will be fine-grained and densified, and the micro-flocs will remain in the precipitated water in a large amount'. However, the specific composition for separating the micro-flocs is completely unclear, so it is inevitably evaluated as technically Unfinished. Unlike the evaluation of the above-mentioned individual known technical literature, the treatment of the agglomerated water of the treated water, although in the final stage of the flocculation or the final stage and the middle stage The sloping plate for floc formation is provided to contribute to the flocculation formation of the microfloc, but the flocculation function of the slanted plate is always considered to be an auxiliary help, and so far there has been no suggestion or suggestion of the floc. The technical idea of actively utilizing the flocculation function originally possessed by the inclined plate is formed. At present, the non-patent document 4 relates to the description of the inclined plate, 201000409, but the above technical idea is not disclosed or implied. [Patent Document 1] 曰本特开2007-203 133 [Patent Document 2] 曰本特开平 6-30441 1 [Non-Patent Document 1] Dan Baoxianren: Basic research on agglutination mechanism of water treatment (1)~(4 'Waterway Association Journal, Nos. 361, 363, 365, 367, (1964.10, 1964.12, 196.2.2, 1965.4) [Non-Patent Document 2] Committee Report: Capacity and Loadings of Suspended Solids Contact Units, J.AWWA, Apri 1,195 1.

[Non-Patent Document 3] Kakuda Shogo, Kataoka Ke: Study on Mud Floating Layer Type High-speed Agglutination and Sedimentation Device (2) - Effect on Aggregation and Stirring Conditions Brought by Mud Floating Layer - Industrial Water 'No. 133, pp 39~ 47, 昭 44 1〇 [Non-Patent Document 4] Waterway Facilities Design Guide, Japan Waterway Association, issued in 2004. [Invention] In view of the above prior art, the object of the present invention is to provide a process for agglomeration of treated water. In order to realize the optimization of the entire water purification system including the subsequent transition treatment and the sludge treatment, the method of agglomerating and sedimentation is to actively utilize the flocculation function originally possessed by the inclined plate for floc formation. In order to promote the flocculation, and to exert the function of the inclined plate for forming a floc, the amount of the inorganic aggregating agent is limited as compared with the prior art, thereby realizing the high density of the remaining microflocs and flocs. And miniaturization, thereby obtaining high quality clarified water and reducing the amount of sludge generated. 8 201000409 The following problems are solved: the basic constitution of the claim 1 of the present invention, the injecting step, and the method: the inorganic aggregating agent, including: :: a coagulant is injected into the treated water; the flocculation step is treated in the h-slot, and the above-mentioned inorganic aggregating agent is pre-floated with the above-mentioned inorganic aggregating agent, and the fine suspension of the treated water is microflocculated. a microflocculation step, and a step of further flocculation of the microflocs by contact with an existing floc in a pond, and a step of depositing the floc in the sedimentation tank Precipitation separation', in the final stage of the flocculation step: setting the pitch width to 5mm w I· and the slope of the floc formation for the 5th or more and 50inm or less, '^, after the microflocculation step The amount of the inorganic aggregating agent used is limited such that the turbidity of the water to be treated after passing through the inclined plate is 4/5 or less of the turbidity before passing. [Embodiment] First, the basic principle of the above basic configuration will be described. In the present invention, attention is paid to the flocculation forming function of the inclined plate 8 for floc formation, and a weight is placed in order to realize such a function (say, the floc formation function of the inclined plate 8 is as shown in FIG. When the water to be treated 1 is immersed in the lower end portion of the inclined plate 8 for floc formation, a flow is generated, and the lower end of the inner side of the inclined sheet 8 for floc formation is further upper side due to the vortex ' The region 'forms a turbulent flow. With such eddy currents (and thus turbulent flow), the probability or frequency of collision of microflocs and suspended particles in the sedimentation tank 21 that have not yet precipitated increases, thereby promoting the flocculation of 201000409. In the present invention, in the present invention, the inclined plate for floc formation is in the range of 50 mm. The distance between the 8 is limited to 5 mm. The basis of the above limitation is explained, when 'the spacing is very small and not full

Above 50mm limit. In the above-mentioned basic configuration, the turbidity is 1/2 or less and the pitch width is set to 5 mm to 5 in order to exhibit the flocculation function of the inclined plate 8 for floc formation before the slanting plate 8 for floc formation. 〇mm, may not be able to achieve. That is, 'in the sedimentation tank 21' is in a stage of reaching the sloping plate 8 for floc formation, and the ratio of the flocculated microparticles is small by the collision of the microflocs with each other or with the existing floc. The proportion of the microflocs in the inclined plate 8 and the suspended particles which have not been microflocculated is large, and it is necessary to flocculate in the inclined plate 8 by collision with each other, and then fall from the inclined plate 8 to precipitate In the sedimentation tank 21, it is necessary to limit the amount of the inorganic flocculating agent used in the microflocculation step to a predetermined amount or less. The reason for this is that the more the amount of the inorganic aggregating agent used in the microflocculation step, the flocculation has started in the sedimentation tank 21 in the stage of immersion in the inclined plate 8 for floc formation, and the flocculation is started. The body formation tilt 10 201000409 The proportion of the microflocs of the plate 8 and the suspended particles which have not been microflocculated is reduced, and the frequency of flocculation in the inclined plate 8 is reduced. If the basic principle of the present invention described above is re-described in accordance with the Smoluchovsky equation described in the background art, the equation can adopt other expressions as described below. [Math 2]

dN / dt = ~α{ΑβΦ I π)· N (Ν : number of particles per unit volume (microflocs or flocs) α : collision efficiency affected by inorganic aggregating agent G * velocity gradient (velocity gradient ), φ : the average volume of particles per unit volume (microflocs or flocs). The general solution of the above first differential equation can be expressed as Aexp ( -kt) (wherein the unit cell in the stage of A t = 0 = 0) The number of particles (microflocs or flocs), k = a (4G (D / Tr)). At the stage where the microflocculation has ended, the inorganic (the amount of aggregating agent used) according to the present invention The general solution when it has been defined is set to Na, and the general solution when the amount of the inorganic aggregating agent used as described in the prior art is limited to be more than the above-defined amount is set to N, a, and at this time, it is affected by the inorganic aggregating agent. The collision efficiency α and the average volume 〇 of the floc or microflocs per unit volume satisfy the relationship corresponding to N, a when it corresponds to Na, Na > N, a. On the other hand, in the treated water 1 immersed in the sedimentation tank 21, and further passed through the stage of forming the inclined plate 8 for the floc, as in the present Therefore, the amount of use of the inorganic aggregating agent is limited, and on the other hand, the reason why the distance between the inclined plates 8 for floc formation is set smaller is that the flow in the inclined plate 8 and the flow of the disorder 11 201000409 are generated. The frequency is large, and thus the velocity gradient G is increased. That is, in the present invention, the reason why the collision efficiency α and the average volume Φ are set smaller as compared with the prior art is also that the slanting plate 8 for forming the effluent is formed. The velocity gradient G in the stage is set larger, and based on the magnitude relationship of α, Φ, and G, at the stage where the microflocculation has ended, as described above, 'even Na> N'a, through the floc In the stage of forming the inclined plate 8, the general solution when the inclined plate 8 for forming an I-form body according to the present invention is used is Nb, which is passed through the stage of forming the inclined plate 8 for floc formation used in the prior art. The above general solution is set to Ν'b, at which time the relationship of NbgN, b is finally obtained, in other words, the number N of the last formed flocs and microflocs in the sedimentation tank 21 can be substantially equal to that of the prior art. However, As described above, even if the number N of flocs and microflocs formed in the sedimentation tank 21 is substantially equal, as in the present invention, the floc and the microfloc are high in density by limiting the amount of the inorganic aggregating agent used. During the clarification, the precipitation frequency of the microflocs remaining in the clarified water will increase, and further, high-quality clarified water can be obtained, and as indicated above, the amount of sludge can be reduced. The formation of high-density microflocs 'It can also be achieved by setting the degree of agitation of the high-speed agitation tank (3) to a predetermined level or higher. Focusing on the effect of such high-speed agitation, it is used in the embodiment of the claim 2 The micro-coagulation step is a step of connecting the high-speed groove 1G divided into two or more blocks in series so that the water to be treated 1 can flow sequentially. 2 coagulant injection step Dragon 3 is further provided with a first agglutinating agent injection step, and respectively injecting the first agglutinating agent into the step 12 / ί. 201000409 and the second agglutinating agent injecting step into the first agglutinating agent injecting step # ^仃 adjust, where Until all of the above-described block or - the inverse of the first body watch rabbit condensate of step! ^/The treated water in the stage of the knife is injected into the inorganic aggregating agent, and the second aggregating agent is injected into the second block of the inorganic coagulation step to the floc: to the self-microflocculation keying step The treated water i of all or part of the slaves is injected into the inorganic aggregating agent. What? According to the general solution based on the above-mentioned Smoluchovsky equation, Bai Ruo explains the basic principle of the implementation form as follows: From the beginning (from the stage of t == 〇) < step slave The inorganic flocculant is administered only in an amount of V, and the microflocculation step is not divided into two or more portions as described above. In this case, the average processing time for microflocculation is set to (5) 1 + t2. The number of particles per unit time N] + 2 can be expressed as

Ni + 2 = Aexp ( - kt, - kt2). In this case, as in the basic configuration described above, the microflocculation step is divided into two boring tools, and the injection step of the inorganic aggregating agent is divided into a first agglutinating agent injecting step and a second agglutinating agent injecting step, and the former is The injection amount is set to V - Δν, and the latter injection amount is set to Λν (the Λν system is less than a single digit or more than v), and is used to perform microflocculation in the third block of the treated water raft. The average processing time is set to ti 'the average processing time for performing the microflocculation in the second aggregating agent injection step is set to ", the number of particles per unit volume in the final stage of the first agglutinating agent is inserted into the step Set to

Nl, the number of particles per unit volume in the final stage of the second agglutinating agent injection step is set to N,! + 2, at this time, it can be expressed as Nif= Afexp (- kltj ^ 13 201000409 (where A' is t = ki = α 1 ( 4G Φ / 7Γ ) is administered to the inorganic aggregator in the phase of 0, ie The number of microflocs, αι denotes the agglutination efficiency with ν-Δν per unit volume only Ν' 1 + 2 = Nl'exp ( Κ2Ϊ2 ) A'exp ( - kjt, - k2t2) (where 'A, n in the stage of t=0, that is, the number of microflocs, α2 (4(ΪΦ/π), α2 means the second aggregating agent injection step, corresponding to the injection of the inorganic aggregating agent only by Λν The agglutination efficiency, 1, the table _ the treated water i flows from the ith block to the second block: the volume of the condensate. k. If the relationship between the above K" and N'1 + 2 is examined Then, the microflocs present in the treated water i will naturally agglomerate under the influence of the inorganic aggregating agent from the initial time until the specified time (up to hi), but not all of them The inorganic aggregating agents which are administered contribute to the microflocculation, but the surface is sequentially absorbed into the microflocs and exerts agglutination. In this case, the effect on the agglutination is almost the same when the amount of the inorganic aggregating agent initially administered is V per unit volume and V- (where Λν is much smaller than the amount of V). Therefore, α and α 'α are established between the α and the above-mentioned elements of Mki. Therefore, based on the same basis, <2 and 邙2 are established, and a%a is established. At the stage of reaching the second block, the average volume of the microflocs is reduced by the high-speed stirring in the second block, whereby φ, < φ is established. Therefore, since a2 < a holds, the result a (My 〉心14 201000409

+ a2t2 established ’ N, + , ^ B

Nl + 2 is established. That is, when the same amount of inorganic aggregating agent per unit volume is administered, the condition of the block after the i-th block and the second block is not divided into the second block and the second block. In the case of the block, the latter is more likely to aggregate, and the number of particles to be removed is increased, and as a result, efficient agglutination can be performed. Therefore, as in the embodiment of claim 2, for the high speed (four) slot (four) 5, the partition is divided into two or more blocks, and when the helmet agglutinating agent is supplemented after the second block, 'the overall blending is less The inorganic aggregating agent can mediate the same degree of agglomerated particles. The agglutination effect 'is the same degree of unit volume per unit volume in the embodiment of claim 2, as shown in FIG. i, high-speed (four) slots 1G are used in two or more blocks (in FIG. 1 , shown in three regions) In the case where the high-speed stirring tank 1〇 is used in the blocks 101, 1〇2, and 103, the average particle diameter of the particles remaining in the Shen Dian water 3 by the particles of the high-storage tank 10' in the Shendian pool 21 and the (4) Minimization, the diameter of the particles that have been smashed during the stage of the shoal of the shoal of the shoal of the shoal of the shoal of the shoal of the shoal In the steps of the i-th agglutinating agent injection step and the 帛2 agglutinating agent injection step, the amount of the (four) machine aggregating agent is adjusted (limited) so that the agglomerated aggregate retention amount is at a predetermined level. Therefore, as in the prior art &, the frequency at which the particles are bonded to each other is reduced, the microflocs are densified, and on the other hand, the & The concentration and dehydration of the sludge make the sludge treatment volume easy. 15 201000 409 As shown in Fig. 1, the second aggregating agent is injected into the position 2〇1, the stage of the high-speed mixing tank iq after the block 102, = the groove 1. The 'following step' is carried out. The implementation of item 3 is characterized by the fact that the amount of residual material in the block is the same as that in the stage where the physicalization step of the water is not agglutinated (_Π Tlme Rati. The degree of absorption; draw the same temperature and the same amount of steam as the treated water. The water will be treated " the suction time is set to Ts, and the evaporation time of the distilled water is again Tv, which is represented by Ts/T. 2_5 or less. The performance of the heart of the catty) (in the following, the preferred request item P brother, the amount of agglomerated aggregates of the inorganic agglutinating agent (for the secret) is used in comparison with the regulation _, STR The embodiment is better and is in an easy-to-use state. Understanding the grasping rule (4) If the request item is installed by a film having a total of 45 mm by the ratio of STR== Ts/Tv as follows: The rate of 38% of the ^^== diameter is 〇.~ Γ and Μ 〗 〖 qi filter paper) the suction device limit is: the second series has a grinding container 'over Folding device, vacuum electrode: W device for picking up the chest) The time for the sample basin and the second amount of steaming water to be taken separately is set to Ts (se〇 and: 2: the implementation of the item: The adjustment (limitation) of the degree of use of the inorganic aggregating agent of the above-mentioned base 16 201000409 may be sufficiently performed without strictly defining the above-mentioned STR, such as the STR of the present invention. 2nd, in the first agglutinating agent injection step and the second agglutinating agent injection step

^ 4 0 -Γ ^ , the amount is adjusted (limited) so that when the STR is below 4.0, the reduction of the fine suspended particles contained in the treatment can reduce the damage of the floc m and the pit. Reducing the take-up water of the sedimentation tank by the sedimentation tank 3, 杳pg· 1 ^ [, ugly £7, the installation pitch of 5 mm to 10 mm is set to pour the plate 8 from the sedimentation tank 21 The amount of microflocs flowing out' is therefore comparable to the conventional method, and a lower turbidity of the precipitated water 3 can be obtained by a smaller inorganic aggregating agent injection rate. In particular, when the inorganic aggregating agent injection rate is adjusted so that the flocculation step inlet < STR is 25 or less, the surface can reflect and maintain the fine and high-density microfloc trait, and the surface can be grown to, for example, 3 "Large microflocs above m. Therefore, although the large microflocs have a smaller diameter than the previous flocs, they have a larger sedimentation velocity due to the density.

It contributes to the separation of the precipitate in the sedimentation tank 21, thereby contributing to the reduction of the turbidity of the precipitated water 3. The embodiment of claim 4 is characterized in that the agglutination condition is set at the stage of the completion of the microflocculation step, that is, the number of particles having a diameter of 3.0/zm or less remaining in the precipitated water 3 is 1〇. 10,000/mL or less 'preferably at 40,000 /mL or less, and then in the flocculation step at the stage of ending the passage of the inclined plate 8 for floc formation, as an index indicating the concentration of the floc. The SDI value (using a cylinder of 100 mL) was measured for the floc volume concentration after 30 minutes of precipitation, and then 17 201000409 = the solid concentration of the sample was determined and used as the solid volume per w floc volume, & Quantity (mg) 'The amount of solid matter in the sample (mg/condensate volume (mL) The amount of sludge density calculated in the X sample) is above 0 mg/mL, preferably above 8 mg/mL. Under the agglutination conditions, the flocculation is carried out. In the embodiment of claim 4, the following agglutination conditions must be set, and the number of particles directly controlled in the Shendian pool 21 at 3.0//Π1 or less is 100,000/mL. Hereinafter, preferably at 40,000 / mL Next, but originally there are eight... The more the machine agglomerating agent, the smaller the number of such micro-flocs per unit volume. Second, according to the above basic configuration, the microflocculation step 2 The inorganic aggregating agent is limited so that the numerical requirements of the volume of each of the microflocs described above cannot be ensured. However, in order to satisfy the numerical requirements, it is necessary to implement the method according to claim 2 in the embodiment of claim 4. In the embodiment of the claim 4, as described above, in the upper stage of the passage of the inclined plate 8 for forming a floc, the requirement is a value. 6 mg / mL or more, preferably 8 mg / mL or more. In order to achieve such a SDI value, as described above, it means to immerse into the sedimentation tank 21 by setting the degree of stirring at the same speed to be higher. The microflocs reach the density of the crucible so as to be easily precipitated when colliding with each other and agglutinating. Thus, in the case of the embodiment of claim 4, the microfloc is realized by setting the degree of high-speed agitation to be high. High Densification Factor 18 201000409 In the inclined plate 8 for floc formation, the microflocs collide with each other and flocculate, and then fall from the inclined plate 8 and are extremely dense in the sedimentation tank 21 The state in which the treated water 1 passes through the inclined plate 8 for forming the floc is very easy to achieve a condition of reducing to 4/5 or less. In the manner of the sedimentation tank 21 for realizing flocculation, the main method is adopted. BACKGROUND OF THE INVENTION The sludge floating layer method and the conventional method in each of the modes described above. Of the two modes, as shown in the embodiment of claim 5, it is of course possible to use the outlet of the sedimentation tank 21 only for the clarified water to flow out. The configuration of the inclined plate 8 for floc formation is provided in the vicinity. In the case of the conventional method, as in the embodiment of claim 6, the conventional method is employed as the flocculation step, and then, as shown in FIG. 3, a method may be employed in which the floc formation is inclined. The plate 8 is disposed in the vicinity of the inlet into which the water to be treated 1 of the subsequent sedimentation tank 21 of the low-speed agitation tanks 191, 192, and 193 flows, and the outlet near which the clarified water flows out. In the case where the inclined plate 8 for forming a floc is provided in the two stages of the inlet and the outlet, the floc = function of the inclined plate 8 for floc formation in the vicinity of the port is particularly remarkable, and will be described in the second embodiment. Point to describe. The embodiment of claim 7 is characterized in that the flocculation step is divided into two or more blocks, and the Gr value of the high-speed stirring strength of each block is set (when the stirring coefficient is c, the area of the stirring wing is set) For A (m2), the peripheral speed of the stirring blade is set to v (m/sec), the dynamic viscosity coefficient is set to ^ (^/like), and the volume (capacity) of the stirring tank is set to V (m3). 19 201000409 [Math 3]

Gt> = l(c»A»v3) \ 2·γ·Υ The numerical value) is set to 150 sec-i or more, and the Tr value of the high-speed stirring time is set to 3 minutes or longer. In general, in each block where high-speed stirring is performed, by setting the stirring strength GR to be large and setting the stirring time Tr to be large, the number of fine suspended particles can be reduced, and the microflocs can be made. High density. At this time, the aggregated surface of the aggregated aggregate is consumed when the suspended particles and the microflocs collide, whereby the STR is gradually lowered. However, when the STR exceeds a predetermined value and the high aggregating agent injection rate of the inorganic aggregating agent is large after the high-speed stirring, the coarse granulation of the aggregated aggregate is unavoidable at the stage of the subsequent flocculation step. Since the density is reduced, the microflocs which are specifically refined by high-speed stirring and which are denser and higher in density are inevitably coarsened and reduced in density. Therefore, in particular, in the embodiment of claim 3, the STR of the water to be treated at the stage where the microflocculation step has been completed is set to be 4 or less, preferably 2.5 or less, and more preferably as close as possible to 丨〇. Therefore, in the subsequent flocculation step, the coarse grain state of the floc can be prevented and the density can be reduced, and the object of the present invention can be effectively achieved. That is, in order to realize the STR of the above numerical requirements, the microflocs can be densified by injecting a smaller amount of aggregating agent than the prior art, and the precipitation and separation of the microflocs can be effectively achieved, and the subsequent Optimization of filtration treatment and sludge treatment. The embodiment of the present invention is characterized in that the upper and lower widths of the inclined plate 8 for forming a floc are 30 mm or more and 100 mm or less, and the interval between the upper and lower sides is 20 mm or more and 200 mm or less. According to the above embodiment, when the upper and lower widths are set to be 3 〇 mm or more, the turbulent flow forming process is more likely to occur, which contributes to flocculation. Wherein 'considering that when the upper and lower widths exceed l〇〇mm, it is not possible to contribute to the formation of turbulent flow' and the upper limit value of 1 〇〇inrn is set as described above. The slanting plate 8 for floc formation is divided into a plurality of stages in that eddy current is formed in the vicinity of the lower end of each stage, and flocculation can be effectively promoted. Further, it is necessary to provide an interval of 20 mm or more for each of the segments, and the flow state at the lower end of the inclined plate 8 for floc formation becomes the case when the flow rate of the water to be treated 1 is normally less than 2 mm. The flow state when the inclined plates 8 are connected to each other is approached, so that the eddy current is not easily generated at the lower end portion of the inclined plate 8 for floc formation on the upper side, so that the above lower limit value is set, and on the other hand, even if it exceeds 2 mm It is technically meaningless, so the above upper limit is set. ί : Generally, in many cases, the angle with respect to the horizontal direction of the inclined plate 8 for floc formation is generally set to 3 〇 t: 〜80. (An embodiment of claim 9, characterized in that, as shown in Fig. 2, between the high-speed stirring step and the flocculation step, contact material stacking grooves 12, 15 are provided, the contact material stacking grooves for microflocs The flow will form a barrier state whereby the newly influent microflocs can be brought into contact and collide with the existing microflocs' to further promote microflocs by passing the treated water 1 through the contact material stacking grooves 12, 15. 21 201000409 The specific contact of the barrier is as described above. For the shape of the microflocclic material accumulation layers 13, 16, in many cases, a hollow cylindrical shape capable of retaining microflocs by forming a thirsty flow is taken as a typical example. In Fig. 2, the high-speed mixing tank 1〇 in the three blocks ΗΠ, 102, and the sludge floating layer tank 5 < 5 used to realize the flocculation step are further placed early or plural The contact material accumulation grooves 12 and 15 of the contact material deposition layers 13 and 16 having the above-described form are provided inside (two in FIG. i). The contact material stacking grooves 12 and 15 are inserted into the contact material. Hoarding trough The inner and outer gaps of each contact material are formed with innumerable small eddy currents. The initial micro vortex traps the microflocs in the inner and outer gaps of the contact material in the state of existing flocculation... and transports the subsequent microflocs to become existing flocs, thereby It is possible to collide and detain at a very high frequency. The effect of micro-flocculation based on such collision and detainment is far beyond the microflocculation in the high-speed agitation tank 1 which increases the GRHR value. Therefore, the clogging of the subsequent flocculation step can be further improved: as a result, the knife-off effect of the fine-grained, high-density micro-float in the sinking tank 21 can be improved. That is, the inflow of the filtration step can be simultaneously achieved. Micro: the fine particles of the condensate, the high density and the number of particles, so it can simultaneously reduce the number of microflocs in all the treated leeches. About the phenomenon associated with the above effect In the formula ^, the collision frequency call is swayed by the above-mentioned eddy current, and it becomes a larger value (compared to the turbulent flow generated by the mixing in the half tank, due to the above full flow The resulting leather is particularly large), and in turn, the number of existing flocs can be increased, as 22 201000409 can increase the reduction of microflocs per unit volume in the treated water from the still-feeding tank. Rate (dN/dt), and the average diameter of the microflocs in the treated water 1 at the outlet stage from the contact material buildup layer can be increased, and the number of the microflocs can be reduced. Therefore, compared to the above In the case of contacting the material stacking grooves 12, 1 $, in the case where the above-mentioned contact material stacking grooves 12, 15 are inserted, in order to obtain the same microfloc forming speed, it is possible to be based on a lower collision efficiency α, that is, it can be subjected to The collision efficiency of the influence of the inorganic aggregating agent is set to a small value, and as a result, a higher density microfloc is obtained, and on the other hand, since the mixing in the high speed mixing tank is enhanced, the strength W can be mixed. And the mixing time TR is set to a smaller value. In the embodiment of the request item H), as shown in FIG. 2, the contact material accumulation groove is provided in a plurality of stages (in the case of FIGS. 2 and 22), and thus, by treating the water i The upper gelation treatment can be further promoted by the plurality of material stacking grooves 12 and 15. The micro-fistles of the two males, in the embodiment provided in the request item 9, 1 ,, will result in the following technical difficulties, the micro-flocs will accumulate or reside in the contact material accumulation, Department, which hinders the circulation of treated water i. Wall

In this embodiment, in the embodiment of the claim u, W has the following characteristics to solve the above technical difficulties: 'By intermittent or continuous injection of the contact material accumulation layer, it will reside and accumulate in the Contact material stack 2 and field micro-flocs to remove 23 201000409. If the request item ^^" is set in the contact material stacking groove ^, ^, especially in the embodiment of the request item 12, the water passing speed of the empty tower in the contact material stacking tank is set at 3 Gm/h or more, and the residence time is Set in more than Μ minutes, in this case, the reduction of the microfloc diameter and the reduction of the number of microflocs at the end of the filtration step can be achieved simultaneously, and the average diameter can be greatly reduced at 3 〇# The number of microflocs above m contributes to the reduction in turbidity of the filtered water. The embodiment of claim 13 is characterized in that the conventional method of the low-speed stirring step is used as the flocculation step, and the value of the low-speed stirring strength is 〇8 (when the stirring coefficient is c, the area of the stirring wing is set ( V), (4) The peripheral speed of the wing is set to v (m/see), the dynamic viscosity coefficient is set to r (m2/sec), and the volume (capacity) of the stirring tank is set to v (m3) by [Math 4]

The numerical value shown in the figure is set to 2 sec-i or more, and the Ts value of the low-speed stirring time is set to 5 minutes or more, and flocculation is performed by contact of the existing floc with the micro-floc. The specific configuration 'as shown in FIG. 4, after three idle blocks ι〇1, 1〇2, ι〇3, the idling tank ίο, in order to form flocs, in four blocks 191, 192, 193 The three blocks 192 '193, 194 of 194 are provided with a low speed agitator 20, so that the flocculation 24 201000409 is realized in the above three blocks 192, 193, 194 'when passing the last block 194 €, the flow person has The slanting device 8 and the sump pool 21 of the clarification zone 7 are then smashed (although, although the first contact zone stacking groove 12 is provided in the first zone m, it is not necessary to provide the contact material stacking groove). In the conventional manner of using the low-speed assist mixer 20, in the case of the prior art, it will be lower than the agglomerated block residue of the fourth value of the str value of the embodiment of claim 3 The above 〇s value is set to a small value of about 20 sec-] and the lumping treatment method of the prior art 'flocs in the floc forming groove 19' becomes large in a low density state. (Coarse granulation), in terms of the low mixing strength and the reduction of the collision frequency, it is unavoidable that a large amount of microfloc residue which has not been precipitated and separated will be produced. In this regard, as in the embodiment of claim 13, when the low speed (four) intensity g value and the low speed mixing time Ts value are set in the above manner, the collision frequency of the microflocs can be increased, and the microfloc is effectively realized. Contact with existing flocs, thereby reducing the amount of microflocs remaining below the diameter of the core, and agglomerating the microflocs (aggregation) & straight (four) 3 〇 "the above state, which can help In a state in which sedimentation and separation can be formed. The embodiment of the present invention is characterized in that the sludge floating method is employed as a flocculation step, and the height of the sludge floating layer 6 is at 5 cents or less. The sludge floating layer method achieves flocculation by contacting the parent floc group deposited in the sludge layer 6 with the microflocs. Specifically, as shown in FIG. With the sludge floating "25 201000409 sludge floating layer tank 5, the flocculation of the microfloc is achieved, and the microflocs of the embodiment of claim 1 to claim 7 and claims 9 to 12 are realized. Step to achieve an increase in the diameter of the microflocs And the reduction in the number of microflocs (in fact, in most cases, the reduction of microflocs having a diameter of 3 〇//m or less and the reduction of the microflocs having a diameter of 3 〇# m or more were found. Increase), according to which the capacity of the sludge floating layer tank 5 can be reduced. That is, in the prior art, the number of microflocs flowing into the sludge floating layer tank 5 is 3: (especially, the number of microflocs having a diameter of 3.), and therefore, the mud floating layer 6 The height is usually set to 2 〇〇 Cm 〜 3 〇〇 cm. In contrast, in the embodiment of the request item 实施 according to the embodiment of each of the above claims, the height can be set to 5 〇 cm to 2 〇〇 cm. The range is flocculated. Further, since the microflocs reaching the sludge floating layer 6 are finely granulated and highly densified, the mother floc based on the accumulation of the microflocs can also be finely granulated and high in density. Further, since the microflocs remaining in the precipitated water 3 are finely granulated and have a density, the cleaning frequency can be reduced by reducing the amount of microflocs flowing out of the filtered water having a diameter of 3.0 // m or more. The reduction in the number of times and the prevention of the cleaning function caused by the clogging of the filter tank, and the sludge generated by the above-mentioned fine flocculation and high density of the mother floc can be achieved. Concentration and improvement of dehydration. Hereinafter, each embodiment will be described based on specific materials. (Example 1) As shown in Fig. 1, after the high-speed stirring 26 201000409 mixing tank 10 and the sedimentation tank 21 of the three blocks 101, 1〇2, and 1〇3, the stirring strength of each high-speed stirring tank 10 is GR. The value was set to 1250 s·1, the TR value of the stirring time was set to 7.3 minutes, and the injection rate of the first aggregating agent injection step was set to 1 8.9 mg/L. Under these conditions, after high-speed stirring, it was set to The presence or absence of the inclined plate having a mounting pitch of 10 mm in the second stage was compared with the three conditions of the injection rate of the second aggregating agent injection step of Omg/L, 9.44 mg/L, and 1 8.9 mg/L. The results are shown in Table 1. (In the upper table, the value on the upper side indicates the case where the inclined plate 8 for floc formation is provided, and the value on the lower side indicates that the inclined plate 8 for floc formation is not provided. In the case, the lower side shows the data of each item regarding the properties of the parent floc after 24 hours of treatment according to the injection rate of each PACB. [Table 1] PACb 0.5-1.0 1.0-3.0 3.0-7.0 7.0 or more turbidity (degrees) Injection rate μιη fim (pieces/mL) βτη ratio of kernels turbidity (mg/L) (units/mL) mL) (pieces/mL) 0 22369 1742 355 77 0.040 1/5.3 20430 1954 808 703 0.211 9.44 11978 908 150 26 0.018 1/2.4 10261 725 236 135 0.044 18.9 6653 387 95 20 0.014 1/1.4 6640 338 139 46 0.020 PACb Injection rate (mg/L) Treatment time (8) STR (-) Floc volume concentration (%) Solid concentration (mg/L) SDI value (mg/mL) 0 24 1.18 20.2 2000 9.90 9A4 24 3.35 24.8 1624 6.55 18.9 24 5.60 27,0 1548 5.43 27 201000409 It can be seen from the table on the upper side of Table 1 that the number of microflocs having a diameter above that is not provided with the tilting device increases with the injection rate of the inorganic aggregating agent in the second aggregating agent injection step. From 7〇3/mL to 135/mL and 45/mL, the destruction of the mother floe is eliminated, and the number thereof is reduced, and the particles of other diameters are similarly reduced in number. As can be seen from the lower table, the increase in the injection rate of the inorganic aggregating agent increases the S tr from 丨.j 8 to 3.35 and 5.60. On the other hand, the SDI value indicating the concentration of the mother floe is used (using l〇〇mL The measuring cylinder, after flocculation after 3 minutes of precipitation, the accumulated concentration is measured, and the solid content of the sample is taken out as the solid content (mg) contained in the volume of the parent lmL, according to the solid form in the sample. The amount of material (mg/{floc volume (mL) X sample number} calculated by the formula) was deteriorated from 9.90 mg/mL to 6.55 mg/mL, 5.43 mg/mL. From Table 1, it is known that flocculation is not provided. In the body forming inclined plate 8, the turbidity when the inorganic aggregating agent injection rate of the second aggregating agent 'priming step is 9 to 44 mg/L is 0.044 degrees'. In contrast, the inorganic agent in which the second aggregating agent is injected is not performed. The turbidity when the agglutinating agent is injected and the tilting device is provided is substantially equal to 0.040 degrees. P can also be used to form the floc forming slope by the above-described two-stage mounting pitch of 1Qmm even if the second aggregating agent injection rate is 〇. The plate 8 can also be obtained with the second agglutinating agent injection rate of 9 44m The clarified water of the g/k case phase. When the second aggregating agent is formed with an inclined pole 8 input ratio of 18_9 mg/L, the ratio of the turbidity of the floc is 1/14, which does not satisfy the present invention. 28 201000409 The basic requirements are as follows. When the amount of the aggregating agent is more than a predetermined amount, the function of the inclined plate 8 for floc formation is relatively reduced. When the above injection rate is 18.9 mg/L, it is formed by floc formation. The turbidity when the plate 8 was inclined was 0.014, and even when the above injection rate was used, the turbidity was 0.018, which not only did not cause a large difference, but when the injection rate was 18_9 mg/L, it showed a ratio of flocculation. The turbidity of the slanting plate 8 is more preferably 0.020. That is, it can be confirmed that even if the injection rate in the second aggregating agent injection step is about 1/2, the slanting plate 8 for forming the floc is fine. The flocculation and the collision of the suspended particles (caused by the turbulent flow accompanying the eddy current in the inclined plate 8) can sufficiently promote the flocculation. If the phenomenon related to the turbidity of Table 1 above is examined, Injecting a coagulant into the flocculation step to make the STR In the case of the ascending method, the floc is coarsely granulated on one side, and the surface is low in density, thereby eliminating flocculation damage and reducing the turbidity of the precipitated water. If such a result is considered, although the STR after the agitation is increased, The mother floc destruction can be eliminated, but since the SDI value indicating the concentration of the mother floe is lowered, the destruction/shadow removal of the parent floc is accompanied by the coarse granulation and low density of the parent floc, which is unfavorable for subsequent The filtration treatment and the sludge treatment are almost the same as the previous method in this respect. On the other hand, by using the above-described inclined plate 8 for floc formation, as shown in Table 1, the diameter can be made with higher efficiency. The micro-flocs above 3.0 "m are separated, so the turbidity of the precipitated water is also substantially the same as the method of eliminating the flocculation damage, and the number of particles having a diameter of 3.〇"m can be achieved" The inorganic solution of the second aggregating agent injection step 29 201000409 The injection of the aggregating agent optimizes the precipitation treatment. Furthermore, according to Table 1, it is also known that the amount of injection in the second aggregating agent injection step can be controlled by the STR of the inlet of the flocculation step, and if the correlation between str and the turbidity of the precipitated water is considered, The turbidity of the precipitated water is used to control the amount of injection in the second aggregating agent injection step. (Example 2) As shown in Fig. 1 and Fig. 2, a high-speed transfer tank 1〇 of three blocks is provided, and a contact material accumulation tank is provided in the high-speed stirring tank 10, and then the first block and the first block are provided. In Block 2 and Block 3, the GR values of the search intensity in each block are set to 1500s*1, i5〇〇s-丨, booy, for the jth block, the second block, and the third block. In the block, the Tr value of the stirring time is set to 0.96 minutes, 〇_96 minutes, and 2.93 minutes, and the Gs value of the mixing strength in the low-speed mixing tank is set to 25S", and the Ts value of the stirring time is set to Μ. In the minute, the injection rate of the first aggregating agent injecting step is set to 26.4 mg/L, and the injection rate of the second aggregating agent injecting step is set to 〇, and under the condition of microflocculation, as shown in FIG. The method is a flocculation step, and the inclined plate 8 for floc formation is disposed in two places near the inlet of the sinking tank 21 t where the treated water is poured into the inlet and the outlet where the clarified water flows out, and the vicinity of the inlet is The distance between the inclined plates 8 is set to 24 mm, and the pitch of the inclined plate 8 near the upper exit is changed as shown in Table 2. 0 201000409

According to Table 2, the smaller the distance between the inclined plates 8 for floc formation, the smaller the ratio of the turbidity before and after the passage of the treated water 1 to the sloping plate for forming the floc, the microfloc and The suspended particles collide with each other to form a floc, and it is known that the probability of precipitation in the sedimentation tank 21 rises. In the case where the pitch is 48 mm, the turbidity is reduced by about 1/1.3 by the front and the rear, which satisfies the requirements of 4/5 or less which are the basic requirements of the present invention, but the degree of reduction does not need to be large. The reason for the occurrence of the a-Hay is that the inclined plate 8 for floc formation is formed by the floc width of 24 mm in the vicinity of the above-mentioned inlet (the above-mentioned pitch width satisfies the inclination for forming the floc formed in the final stage of the flocculation of the present invention) The numerical requirements of the width between the plates can further promote the coagulation. Thus, in addition to the measurement shown in Table 2 above, the turbidity of the third block (the third block of the low-speed stirring tank) 193 having the floc forming groove 19 of the low-speed agitator 20 is measured, The value of the turbidity is 85.4. In the above Table 2, the turbidity of the floc-forming inclined plate 8 in the vicinity of the outlet is not set to 0.098. In view of the above, it is understood that the floc is formed by the vicinity of the inlet. The slanting plate 8 can greatly reduce the turbidity. 201031 201000409 OBJECTS OF THE INVENTION In the present invention having the above-described basic configuration, the floc formation function of the inclined plate for forming a floc is exerted so that the inclined plate for forming the floc is formed The thirst of the treated water is 4/5 or less of the turbidity before the passage, but this function is exerted not only by setting the pitch width to 5 mm to 50 mm but also by the inorganic aggregating agent in the microflocculation step. The amount of use is limited to achieve the result 'clearing the microflocs remaining in the water is finer than the prior art h, and the density is higher, so that high quality clarified water can be obtained. Generation amount of sludge with an inorganic coagulant used in the reduction, and since this can reduce the complexity of the reduction of sludge treatment. [Industrial Applicability] The present invention is applicable to all fields of sewage and sludge treatment industries using inorganic aggregating agents. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1' is a block diagram showing the basic concept of the present invention in the case of using a sludge floating layer method. Fig. 2 is a block diagram showing the embodiment of the stacking tank when the Sun Zhi-p goods' table is not in the form of a sludge floating layer. Fig. 3' shows that the low-speed agitation tank is used based on the conventional method, and the other side is set at the vicinity of the entrance of the bar 21 and the vicinity of the exit. A block diagram of an embodiment of the board. In Fig. 4, the rear main-A music table is not based on the conventional method and uses a block diagram of the implementation of the low-speed stirring tank. 32 201000409 Fig. 5 ' is shown between the inclined plates for forming flocs, the treated water forms a vortex near the lower end of the inclined plate, and then forms a turbulent flow, and at the same time, the upper side is a cross-sectional view of the condition . [Description of main component symbols] The first injection position of the inorganic aggregating agent (first inorganic aggregating agent) in the first agglutinating agent injection step of the treated water, the sedimentation water sludge floating layer tank, the sludge floating layer, the clarification area, the formation of the floc Plate high speed agitation tank high speed mixer I 12 13 15 16 19 21 1st contact material accumulation tank 1st contact material accumulation layer 2nd contact material accumulation tank 2nd contact material accumulation layer floc formation tank low speed mixer sedimentation tank 101 high speed stirring tank Block i 102 Block 2 of high-speed agitation tanks 201000409 103 Block 3 of high-speed agitation tanks Section 1 of low-speed agitation tanks 192 Low-speed mixing Cao's second block 193 Zone 3 of low-speed agitation tank Block 194, Block 4 of the low speed agitation tank, injection location 34 in the second aggregating agent injection step

Claims (1)

201000409 VII. Patent application scope: 1. A method for agglomerating and precipitating treatment of treated water, comprising: an inorganic aggregating agent injecting step, injecting an inorganic aggregating agent into the treated water; and a flocculation step comprising: injecting the inorganic a microflocculation step of preliminarily microflocating the finely suspended particles in the treated water in a high-speed stirring tank, and the contact with the existing floc in the sedimentation tank And the step of further flocculating the microflocs, and the step of precipitating and separating, is to deposit the flocs in the sedimentation tank, wherein, in the final stage of the flocculation step, the pitch width is set to be 5 mm or more. An inclined plate for floc formation of 50 mm or less, and the amount of the inorganic aggregating agent used in the stage of the microflocculation step is limited, so that the turbidity of the treated water after passing through the inclined plate is the turbidity before passing 4/5 or less. 2. The method for treating agglomeration and sedimentation of water to be treated according to claim 1, wherein the microflocculation step is to connect the still-speed stirring tanks divided into two or more blocks in series to be treated water. In the flow state, the first agglutinating agent injection step and the second agglutinating agent injection step are provided, and the injection amount of the first aggregating agent injection step and the second agglutinating agent injection step are respectively adjusted, wherein the third In the aggregating agent injection step, the inorganic aggregating agent is injected into the water to be treated at the stage of reaching all or a part of the first block of the microflocculation step, and the second aggregating agent is injected into the self-microfloc The treated water in all or part of the second block to the flocculation step is injected into the inorganic aggregating agent. 3. The agglomerated precipitation treatment of treated water according to the scope of the patent application No. 35 201000409, wherein the STR (SuetiGn) of the treated water at the end of the microflocculation step is used as an index indicating the amount of agglomerated aggregates remaining. Time Ratl〇: # By taking the same degree of suction and taking the same amount of distilled water from the treated paper at the same temperature and the same amount of distilled water, set the suction time of the treated water to Ts' and set the suction time of the distilled water to Τν, at this time, the ratio of the index expressed by Ts/Tv is 4 〇 or less, preferably 2. 5 or less. 4. The method for agglomerating and precipitating treatment of treated water according to item 2 of the patent application scope, wherein, as the index # indicating the residual amount of the aggregated aggregate, the STR of the treated water at the stage where the microflocculation step has ended ( Suction Time Ratio: When the same amount of suction is used to draw the same amount of steamed water from the same filter paper, the suction time of the treated water is set to Ts, and the suction time of the distilled water is set. The ratio of the index expressed by Ts/Tv at this time is below 4.〇, preferably below 25. 5. The method for treating agglomerated water of a treated water according to any one of the patent scopes 2 and 3'4, wherein 9 has completed the stage of the microflocculation step, setting the agglutination condition, gp, The number of particles having a diameter of less than 3.〇em remaining in the precipitated water is 100,000/mL or less, preferably 40,000/mL or less, and (4) flocculation at the end of the passage of the inclined plate for forming the floc formation. In the solubilization step, the SDI value is used as an index indicating the concentration of the floc (using a measuring cylinder of 1 〇〇 mL, the volume concentration of the floc after the minute is measured, and then the solid concentration of the sample is determined, And as the amount of solid matter (mg) contained in the volume of the floc per lmL, by the amount of solid matter in the sample (mg / {floc volume (mL) X sample number}) The density index value is more than 6 mg/mL above 36 201000409. It is better to carry out any of the floc 4 treatments under the agglutination conditions of 8 mg/mL or more 'using the sludge floating layer (sludge as floc) Steps, but in the sinking pool 6. The clarified water flows out 6. As in the patent application scope 1, 2, the water agglomeration and sedimentation treatment method, in which the blanket method and the conventional method, in which the slanting plate for forming the floc is only disposed near the outlet. The method for treating agglomerated water of the treated water according to any one of items 1, 2, 3 and 4, wherein the flocculation is formed in a conventional manner as a flocculation step, and then in a sedimentation tank after passing through the low-speed stirring tank The inclined plate is placed in the vicinity of the inlet into which the water to be treated flows and the outlet near the outlet where the clarified water flows out. 8. The agglomeration of the treated water as in any one of the claims 2, 3, and 4 The shoal treatment method 'where' will be used as the high-speed stirring intensity in each block of the microflocculation step (when the stirring coefficient is set to c, the area of the stirring wing is set to A ( m2 ), the periphery of the stirring wing The speed is set to (πι/sec), the dynamic viscosity coefficient is set to r (m2/sec), and when the volume (capacity) of the stirring tank is V (m3), the value of the table π is set to 150 sec - i or more, will be set as the TR value of high-speed stirring time 9. The agglomeration and sedimentation treatment method of the treated water according to any one of the claims 2, 3, and 4, wherein the sloping plate for floc formation is 37 201000409, and the width in the downward direction is 30 mm. The above-mentioned, 100 mm or less, the day _τ1, 1 and the interval of 20 mm or more and 200 mm or less in the up-and-down direction is set as a plurality of sections. 10. The method for treating the agglomerated water of the treated water according to any one of the claims of the patent scope, Wherein 'between the high-speed stirring step and the flocculation step, a contact material stacking groove is provided, and the contact material stacking groove forms a barrier state for the flow of the micro-flocs, thereby enabling (four) and collision of the micro-flocs with each other. The micro-flocculation is further promoted by the W-reducing water material of the contact material accumulation tank.如 If you apply for the treatment of the treated water in the section H), the method of processing the agglomerated shovel is set to a plurality of sections. 12. A method for agglomeration and sedimentation treatment of treated water in the case of the application of the field No. 1 (3), wherein the contact material accumulation may be deposited or accumulated by intermittently or continuously injecting air into the contact material accumulation layer. The microflocs in the layer are removed.丁J儆系凝1 3. For example, the patented gluten garden, item 11 of the treated water condensate method, which can be residing or splicing by intermittently or continuously, 'air, the contact material accumulation layer ^ \ Logic, the body is removed. (4) The micro-layer in the contact layer of the contact material. 14. The method for agglomeration and sedimentation of water in the patent application area is set at 3. 〇m/h. Any of the 12, 13 or ▲, ▲ π ding 1 items are treated, which will contact the space above the material accumulation tank, and the residence time is set to 丨5 minutes to the first, second, third, and fourth In the item, the term “项之糸”, in the traditional way as Ge 38 201000409 Ai lock, the value of the gift strength Λ = role, will be used as a low-speed search (m2), the field (four) coefficient sigh as C, search The area of the wing is set to the peripheral speed of the A half wing is set to v (m/sec), the sales are set to / (m2/M ^ dynamic viscosity coefficient C), and the volume (capacity) of the search tank is set to > ^ "3. With J and VV (m3), Gc· 2·γ·factory value) is set to 2〇sec-i or more, and the Ts value 俨/ ς v will be used as a low-speed stirring. It is more than 5 minutes, with the existing wisdom μ # & ^ + contact And flocculation. Μ Μ 与 与 与 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼 隼The F for the body strength will be used as the low speed stirring value of 5 (▲ the mixing coefficient is set to C, + i (m2), ^ the area of the stirring wing is set to A. The peripheral speed of the mixing wing is set to v (set to 7*) , sec), dynamic viscosity coefficient ^ (m / sec), when the volume of the stirring tank is by J - and V ( m3 ) Cy^»v3 2·γ·factory value of the stimuli) τ# 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 丄咐 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低 低17. If the method for the treatment of the first water in the patent area is agglomerated and settled, in the treatment of any of the 34 items, the sludge floating layer method is used as the floc 39 201000409 gelation step for contacting to realize flocculation. Below 200cm. 18. For example, the agglutination and precipitation treatment of water is used to form a gelation step for contacting to achieve a floc of 200 cm or less. VIII. Schema· (as in the next page) The height of the sludge floating layer by the accumulated parent floc group and microflocs is 50 cm or more, and the range of items 11, 12, and 13 is The treatment method comprises: using a sludge floating layer method as a floc, the height of the sludge floating layer formed by the mother floc group and the microflocs accumulated by the floc is 50 cm or more, 40