WO2006036014A1 - 凝集分離装置 - Google Patents
凝集分離装置 Download PDFInfo
- Publication number
- WO2006036014A1 WO2006036014A1 PCT/JP2005/018496 JP2005018496W WO2006036014A1 WO 2006036014 A1 WO2006036014 A1 WO 2006036014A1 JP 2005018496 W JP2005018496 W JP 2005018496W WO 2006036014 A1 WO2006036014 A1 WO 2006036014A1
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- WIPO (PCT)
- Prior art keywords
- water
- sludge
- flocculation
- separation tank
- specific gravity
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2427—The feed or discharge opening located at a distant position from the side walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
- B01D21/286—Means for gentle agitation for enhancing flocculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/12—Inert solids used as ballast for improving sedimentation
Definitions
- a flocculant is mixed with water to be treated (raw water, inflow water) containing suspended substances such as colloidal substances and fine particles, and the suspended substances are aggregated to form a floc (aggregated sludge).
- the present invention relates to a flocculation / separation device that continuously obtains clear water by solid-liquid separation of floc from treated water.
- a conventional flocculation / separation apparatus of this type includes a flocculation reaction tank into which treated water containing suspended substances and the like flows through a raw water introduction pipe.
- the water to be treated that has flowed into the agglomeration reaction tank is added with a flocculant from the flocculant supply means, and is supplied with insoluble additives such as sand from the additive supply means.
- this aggregating / separating apparatus comprises a mixture extracting means for extracting the mixture from the agglomeration reaction tank, a solid-liquid separation tank for solid-liquid separation of the effluent from the agglomeration reaction tank, and a separation for extracting the separated substance from the solid-liquid separation tank.
- the additive collector then separates and collects the additive contained in the separated product returned from the pump through the return pipe, returns the collected additive to the agglomeration reaction tank, and discharges the separated sludge outside the system (for example, see Patent Document 1).
- Patent Document 1 Japanese Laid-Open Patent Publication No. 2 2003- 3 2 6 1 10 (right column, page 2, "1 4 1 2 6 line, Fig. 1)
- flocs are formed by adding a flocculant in the flocculation reaction tank, and then flocs are separated from the water to be treated using gravity in the solid-liquid separation tank.
- a solid-liquid separation tank with the same area is required, and a large site area is required as a whole.
- the flocs cannot be processed at a speed exceeding the sedimentation speed of the floc, and the processing efficiency is poor.
- the present invention has been made to solve the above-mentioned problems, and its purpose is to reduce the site area and to perform solid-liquid separation stably at a higher speed. It is possible to reduce the installation area and processing time, and to obtain a concentrating / separating device capable of stable processing.
- the flocculating / separating apparatus comprises a flocculating / separating tank into which raw water mixed with a flocculating agent flows, a water flow generator for generating a swirling flow in the flocculating / separating tank, and a sludge transfer pipe for transferring the flocculated sludge. It is characterized by.
- a draft tube is provided in the agglomeration separation tank.
- High density material is present in the coagulation separation tank.
- the sludge transfer pipe is equipped with a separator that separates the high specific gravity material and circulates it in the coagulation separation tank.
- a porous member is provided above the draft tube.
- a raw water introduction pipe is installed to guide the raw water mixed with the flocculant into the draft dredge tube.
- the water flow generator is a stirrer equipped with an axial flow type stirring blade.
- a mud collection box is provided to concentrate the coagulated sludge.
- a line mixer is provided to mix the flocculant and raw water.
- a water quality measuring machine is installed in the coagulation separation tank.
- a water collector will be installed to introduce treated water.
- the floc separation process can be continuously performed in one flocculent separation tank by using floc formation by the flocculant and swirl flow by the water flow generator. That is, since coagulation separation can be performed instantaneously, floc formation and solid-liquid separation can be performed in the same coagulation separation tank. In addition, since solid-liquid separation can be performed efficiently and stably, a conventional solid-liquid separation tank that requires a large site is not required, the entire apparatus is downsized, and construction costs are reduced.
- the residence time can be set to about 2 to 3 minutes, and the S S removal rate can be maintained at 80% or more. If the floc state in the flocculation / separation tank and the state of the treated water are constantly measured, the stable interface and the amount of the hook can be always kept appropriate, and stable continuous processing becomes possible.
- a swirl flow can be generated in the flocculation separation tank.
- a swirling flow can be smoothly formed by arranging a draft tube so as to surround the water flow generator and arranging a horizontal guide plate and a vertical guide plate. Furthermore, a porous member is disposed. As a result, horizontal flow (for example, centripetal flow) and swirl flow (for example, downward flow) can be generated more stably while suppressing the flow velocity in the upward direction, and processing efficiency can be stabilized. .
- FIG. 1 is a flowchart of the flocculation / separation device according to Embodiment 1 of the present invention.
- FIG. 2 is a flowchart of the flocculation / separation device according to Embodiment 2 of the present invention.
- FIG. 3 is a main part flow diagram of the flocculation / separation device according to Embodiment 3 of the present invention.
- FIG. 4 is a main part flow diagram of the flocculation / separation device according to Embodiment 4 of the present invention.
- FIG. 5 is a main part flow diagram of the flocculation / separation device according to Embodiment 5 of the present invention.
- FIG. 6 is a main part flow diagram of the flocculation / separation device according to Embodiment 6 of the present invention.
- FIG. 7 is a main part flow diagram of the flocculation / separation device according to Embodiment 7 of the present invention.
- FIG. 8 is a main part flow diagram of the coagulation / separation device according to Embodiment 8 of the present invention.
- FIG. 9 is a main part flow diagram of the coagulation / separation device according to Embodiment 9 of the present invention.
- FIG. 10 is a main part flow diagram of the flocculation / separation device according to embodiment 10 of the present invention.
- FIG. 11 is a main part flow diagram of the flocculation / separation apparatus according to Embodiment 11 of the present invention.
- FIG. 12 is a main part flow diagram of the flocculation / separation apparatus according to Embodiment 12 of the present invention.
- FIG. 13 is a main part flow diagram of the flocculation / separation apparatus according to Embodiment 13 of the present invention.
- FIG. 14 is a plan view showing an arrangement of a plurality of coagulation / separation apparatuses.
- FIG. 15 is a plan view showing an arrangement of a plurality of coagulation / separation apparatuses.
- FIG. 16 is a plan view showing an arrangement of a plurality of aggregating / separating apparatuses.
- FIG. 17 is a plan view showing an arrangement of a plurality of coagulation / separation apparatuses.
- FIG. 18 is a plan view showing the arrangement of the guide plates.
- Fig. 19 is a perspective view showing the trough used in the water collector.
- FIG. 20 is a perspective view showing a trough used in the water collector.
- FIG. 21 is a perspective view showing a trough used in the water collector.
- Figure 22 is a partial cross-sectional view showing the trough used in the water collector.
- Figure 23 is a partial cross-sectional view showing the trough used in the water collector.
- Figure 24 is a partial cross-sectional view showing a water collector using filter media.
- Figure 25 is a partial cross-sectional view showing a water collector using filter media. DESCRIPTION OF PREFERRED EMBODIMENTS
- FIG. 1 is a flowchart showing a flocculation / separation apparatus according to Embodiment 1 for carrying out the present invention.
- This agglomeration separation device is equipped with a agglomeration separation tank 1 that agglomerates suspended substances in raw water and separates them into solid and liquid.
- the raw water is introduced from the mixing tank 2 into the coagulation separation tank 1 through the raw water introduction pipe 3, the high specific gravity material addition equipment 4, and the raw water introduction pipe 5.
- the mixing tank 2 has a raw water inlet 2 a through which raw water flows and a flocculant inlet 2 b for injecting the flocculant 6.
- the mixing tank 2 maintains a turbulent state with a certain residence time in the raw water, and the suspended substances in the raw water react with the flocculant 6 to form a floc.
- the high specific gravity material addition equipment 4 is equipped with a screen 7 for removing impurities from the raw water.
- the high specific gravity material addition equipment 4 is added with a high specific gravity material 9 from a separator 8 installed thereabove.
- the coagulation aid 10 is injected into the raw water introduction pipe 5 downstream of the high specific gravity material addition facility 4 from the coagulation aid injection port 10a. By adding the coagulant aid 10, the high specific gravity material 9 and the floc are efficiently contacted by the swirling flow, and a heavy hook is formed, so that solid-liquid separation is improved.
- the position of the raw water inlet 5 a of the raw water inlet pipe 5 is a position where it can easily get on the swirling flow in the coagulation separation tank 1. If the position of the screen 7 is upstream of the flocculation separation tank 1, it is not limited. In order to prevent blockage of the separator 8, it is preferable to install the screen 7 upstream of the position where the high specific gravity material 9 is added, and there is no problem even if it is installed upstream of the mixing tank 2. . Needless to say, if the raw water does not contain impurities, the screen 7 does not need to be installed.
- the high specific gravity material 9 and the coagulation aid 10 are added at positions where the high specific gravity material 9 and the coagulation aid 10 react instantaneously to promote floc formation.
- the high specific gravity material 9 may be added at the upstream side of the flocculation separation tank 1, but it is preferable to add it between the flocculation separation tank 1 and the mixing tank 2.
- the coagulation aid 1 may be added before the mixed solution flows into the coagulation separation tank 1.
- the coagulation aid 1 immediately after the mixed solution is introduced in the vicinity of the raw water inlet 5a in the coagulation separation tank 1. It may be sufficiently mixed with 0.
- a water flow generator 11 that agitates the inflowing mixed liquid (the liquid in which the raw water and the flocculant 6 are mixed), that is, the water to be treated to generate a water flow.
- a water collector 1 2 At the top of the coagulation separation tank 1, there is a water collector 1 2 that collects the treated water obtained by solid-liquid separation, and the treated water is discharged from the water collector 1 2 through the treated water outlet 1 2 a.
- a sludge discharge port 13 for discharging sludge separated from the water to be treated is provided at the bottom of the coagulation separation tank 1.
- a mud collection box 14 for collecting sludge from the sludge discharge port 1 3 is provided outside the lower part of the coagulation separation tank 1.
- the sludge inside the mud collection box 14 is transferred to the separator 8 through a sludge transfer pipe 15.
- the sludge transfer pipe 15 is provided with an open / close valve 16 and a transfer pump 17 in order from the side of the mud collection box 14.
- the agglomeration separation tank 1 is provided with a water quality measuring device 18 for measuring the water quality at the sludge interface K. This water quality measuring device 18 is electrically connected to the open / close valve 16, and the on-off valve 16 is operated based on a signal from the water quality measuring device 18.
- the agglomeration / separation tank 1 is preferably cylindrical, but can be a cube (rectangular) in consideration of effective use of space and construction costs. Further, the plane shape of the agglomeration / separation tank 1 can be a polygonal shape, and in this case, it is preferable that the agglomeration / separation tank 1 be an even-numbered symmetric shape. Moreover, when comparing the case where the volume is the same and the height is high and the case where the height is low, the latter is not suitable for generating a circulation flow even if the volumes are the same. Therefore, the height of the agglomeration separation tank 1 is preferably larger than the horizontal length (diameter, width).
- the ratio of the height to the diameter is 1 or more, and when it is a rectangular parallelepiped, the ratio of the height to the horizontal length is 1 or more.
- a smooth swirling flow can be generated by placing a partition inside the flocculation tank “I.
- the upper part of the flocculation tank 1 If the diameter of the lower part is increased, the rising speed of the swirling flow in the upper part of the coagulation separation tank 1 As a result, the sludge interface K can be generated effectively.
- Aggregation simultaneous IJ 6 is an iron and aluminum inorganic coagulant with a high cation valence.
- examples of this type of inorganic flocculant include polyaluminum chloride, sulfate band, ferric chloride, and ferric sulfate.
- the type of flocculant 6 is not limited as long as flocs can be formed satisfactorily.
- the separator 8 separates the high specific gravity material 9 from the coagulated sludge flowing in from the sludge transfer pipe 15 and reuses the high specific gravity material 9.
- the separator 8 is a wet liquid cyclone.
- the separator 8 supplies the high specific gravity material 9 obtained by the separation to the high specific gravity material addition equipment 4 and discharges the remaining sludge to the outside of the system.
- Other devices can be used for this type of separator 8 as long as they can separate the high specific gravity material 9 and sludge.
- a so-called classifying tank in which sludge adhering to the high specific gravity material 9 is peeled off from the high specific gravity material 9 by stirring, mixing, or dropping, and settling can also be used. Needless to say, if the high specific gravity material 9 is not reused, the high specific gravity material 9 may be discharged out of the system together with sludge.
- the high specific gravity material 9 can be a substance having a specific gravity of 1 or more, such as fine sand. Fine sand has a specific gravity of 2.6, a uniformity coefficient of 1.7, and an effective diameter of about 100 m.
- an organic or inorganic substance having a specific gravity of 2 to 8 similar to that of fine sand, or a mixture of this substance and fine sand can be used.
- the specific gravity range of the high specific gravity material 9 particularly preferable for the operation of the coagulation / separation apparatus is 2.0 to 3.0.
- Examples of this type of high-density material 9 include garnet, spur ash (manufactured by Tokyo Metropolitan Government), zirconium oxide, and anthracite.
- As the flocculating aid 10 a polymer flocculating agent such as an anionic or nonionic type can be used.
- the water flow generator 1 1 is a means of creating a turbulent flow region without destroying the flocs due to the shearing force associated with the stirring, and forming a large floc by bringing the high specific gravity material 9 and the like into contact with the micro hook.
- This water flow generator 1 1 is an agitator equipped with an axial flow type stirring blade 1 1 a, a drive shaft 1 1 b extending vertically upward from the stirring blade 1 1 a, and this drive shaft 1 A motor 1 1 c for rotating 1 b is provided. Depending on the installation conditions, the drive shaft 1 1 b can be extended in the lateral direction.
- the axial flow type water flow generator 11 can generate a large discharge with a small static pressure.
- the water flow generator 1 1 has an axial flow type impeller 1 1 a
- a pump, a fan, an ejector, etc. can be used instead of the stirrer provided.
- the rotation of the water flow generator 11 is preferably variable, but it may not be variable depending on the operating conditions of the flocculation / separation device.
- the water flow generator 11 other means for generating a swirl flow well, for example, a jet flow generator such as a circulator can be used.
- the water collector 12 is configured to introduce the treated water overflowed from the coagulation separation tank 1 and remove flocs in the treated water. The treated water is transferred out of the system through the treated water outlet 12a.
- This water collector 1 2 can be equipped with a filter, and the filter can be a rotating disk type.
- the water collector 12 can be a filter equipped with a filter medium, and a membrane filter equipped with a separation membrane or filter cloth. Furthermore, a trough suitable for the properties of treated water, for example, a submerged trough can be obtained. These water collector troughs will be explained later.
- the purpose of installing the mud collection box 1 4 is to prevent the sludge interface K from rising by extracting the coagulated sludge from the coagulation separation tank 1 when the sludge concentration in the coagulation separation tank 1 increases.
- the mud collection box 1 4 is formed by an inclined wall 1 4 a extending obliquely upward and outward from the lowermost part of the outer peripheral surface of the coagulation separation tank 1 to coagulate and separate the coagulation sludge from the sludge discharge port 1 3. And the inclined wall 1 4 a.
- the mud collection box 14 is provided outside the lower part of the coagulation separation tank 1, but it does not obstruct the swirl flow, and the mud collection box 14 is not limited to the outside if it is easy to collect mud.
- the aggregated sludge is concentrated for the purpose of reducing the circulation rate for recycling the high specific gravity material 9 and reducing the amount of sludge to be excluded from the system.
- the collected sludge in the mud collection box 14 is pulled out by the transfer pump 17.
- the sludge transfer pipe 15 controls the solid matter concentration in the flocculation separation tank 1 by pulling out the flocculated sludge from the mud collection box 14 via the open / close valve 16 and the transfer pump 17.
- the sludge transfer pipe 15 is used to supply the flocculent sludge cut through the bow I to the separator 8 and to separate and circulate the high specific gravity material 9 from the flocculent sludge. That is, in order to make the high specific gravity material 9 contribute to the agglomeration reaction, the high specific gravity material 9 is added to the raw water at a constant concentration, but the concentration is controlled by the amount of the coagulated sludge extracted by the transfer pump 17. .
- the water quality measuring machine 1 8 is used to continuously measure the state of flocs in the flocculation separation tank 1, in other words, to monitor the accumulation of excessive flocs in the flocculation separation tank 1. Concentration meter, turbidity meter, etc. Normally, the sludge interface K increases as the floc concentration in the flocculent separation tank 1 increases by _t.
- the water quality measuring machine 1 8 always measures the sludge interface K in the flocculation / separation tank 1, and when the phenomenon of excessive accumulation of flocs occurs, the on-off valve 1 6 is automatically opened to flocculate excess flocs. Pull out as sludge, balance the amount of floc in the flocculent separation tank 1, and control the sludge interface K so that the floc does not flow to the treated water side.
- the turbidity and transparency of the treated water are measured. Methods and combinations of these can also be used.
- the distance between the water surface in the flocculation / separation tank 1 and the sludge interface K is always 1.0 m or more. It is reasonable to adjust the sludge concentration to about 7 to 14%. In other words, it is preferable that the amount of flocculated sludge drawn out with respect to the amount of raw water flowing in is secured to about 3 to 10%, and the concentration in the flocculation separation tank 1 is made about 0.5 to 3%.
- a certain amount of agglomerated sludge is withdrawn from the aggregating / separating tank 1 for a certain period of time using the on-off valve 16 and the transfer pump 17 and transferred to the separator 8 via the sludge transfer pipe 15.
- the separator 8 separates the agglomerated sludge from the high specific gravity material 9 and discharges the remaining sludge out of the system, preventing the floc from flowing out to the treated water and making the treated water worse! Stop.
- Embodiment 1 Next, the operation of the flocculation / separation apparatus in Embodiment 1 will be described.
- the flocculant 6 When the flocculant 6 is mixed with the raw water flowing into the mixing tank 2 from the flocculant inlet 2b, the suspended material in the raw water reacts with the flocculant 6 and flocks.
- the flocified liquid mixture (the liquid in which raw water and flocculant 6 are mixed) flows into the high specific gravity material addition facility 4 through the raw water introduction pipe 3. At this time. Screen 7 removes contaminants in the raw water and prevents blockage of separator 8.
- the high specific gravity material 9 from the separator 8 In the high specific gravity material addition equipment 4, the high specific gravity material 9 from the separator 8 is mixed into the mixed liquid (the liquid in which the raw water and the flocculant 6 are mixed).
- the mixed solution containing the high specific gravity material 9 (the solution in which the raw water and the flocculant 6 are mixed) flows through the raw water introduction pipe 5, and in the meantime, the liquid mixture (the liquid in which the raw water and the flocculant 6 is mixed) is aggregated.
- the auxiliary 10 enters from the coagulant auxiliary inlet 10 a.
- a mixed liquid containing the high specific gravity material 9 and the coagulant aid 10 (the raw water and the coagulant 6 are mixed From the raw water inlet 5a into the coagulation separation tank 1 and becomes treated water.
- the water flow generator 1 1 operates to generate a swirling flow in the treated water.
- the total amount of the swirling flow is the sum of the treated water previously existing in the coagulation separation tank 1 and the raw water newly added from the raw water inlet 5a.
- the swirl flow becomes a downward flow at the center of the flocculation separation tank 1, becomes a horizontal flow (radial flow) at the bottom of the flocculation separation tank 1, then becomes an upward flow, and further flows in the vicinity of the sludge interface K (centrocentric). Flow). Due to such swirl flow, suspended substances in the water to be treated react with the high specific gravity material 9 and the coagulant aid 10, and flocs are efficiently generated. This floc has a rest with the high specific gravity material9 and the apparent specific gravity becomes high. In other words, the sludge interface is formed by swirling in the flocculation tank 1 faster than the rising speed of the water to be treated.
- the coagulated sludge in the mud collection pox 1 4 flows to the separator 8 through the sludge transfer pipe 1 5, but the water quality measuring device 1 8 measures the water quality at the sludge interface K in the coagulation separation tank 1, The signal is output to on-off valve 16.
- the opening of the on-off valve 16 is changed to make surplus from the flocculation separation tank 1.
- the flocs in the flocculation separation tank 1 to balance the flocs.
- the separator 8 separates the high specific gravity material 9 from the coagulated sludge, and returns the separated high specific gravity material 9 to the high specific gravity material addition facility 4.
- the flocculation / separation apparatus uses the floc formation by the flocculating agent 6 and the swirl flow by the water flow generator 11 to continuously perform the floc separation process with one flocculation separation tank 1. Can be done. This eliminates the need for a separate solid-liquid separation tank from the conventional agglomeration reaction tank, and reduces the required space. At this time, since the mixing tank 2 for mixing the flocculant 6 with the raw water is provided, the raw water can be reliably flocked by mixing the brine and the flocculant 6 quickly and efficiently.
- FIG. 2 is a flowchart showing the coagulation / separation apparatus according to Embodiment 2 for carrying out the present invention.
- a draft tube 21 is provided in the center of the flocculating / separating tank 1.
- a porous member 22 is horizontally disposed in the vicinity of the sludge interface.
- a guide plate 23 is provided on the inner surface of the agglomeration separation tank 1 below the porous member 22.
- the shape of the flocculation / separation tank 1 is a square.
- the horizontal position of the water flow generator 11 is the center in the draft tube 21, and the vertical position of the stirring blade 11 a is the bottom of the draft tube 21.
- the raw water introduction port 5 a of the raw water introduction tube 5 is provided inside or just above the draft tube 21. It is preferable that the mixed liquid containing the high specific gravity material 9 and the coagulant aid 10 (the liquid in which the raw material and the coagulant 6 are mixed) easily ride on the swirling flow that moves in the draft tube 2 1. .
- the raw water inlet 5a of the raw water inlet pipe 5 is located inside the draft tube 21, the lower area of the draft tube 21, or the draft tube.
- the raw water inlet 5 a of the raw water conduit 5 can be cut from the portion where the drive shaft 1 1 b of the water flow generator 1 1 penetrates the porous member 2 2 and guided from there. .
- the shape of the draft tube 21 is a cylindrical shape having openings at the top and bottom for ease of manufacture and low cost.
- the diameter of the draft tube 21 is a tapered cylinder with a larger opening diameter than the upper opening diameter.
- the horizontal flow (radial flow) is easily changed, and the horizontal cross-sectional area inside the draft tube 21 is the same as the horizontal cross-sectional area outside the draft tube 21.
- the draft tube 2 1 can easily change the swirl flow from the descending flow to the horizontal flow (radial flow). Structure, that is, the flow of fluid can be assisted to generate a swirling flow. 18496
- the distance between the bottom surface of the agglomeration separation tank 1 and the bottom surface of the draft tube 21 is preferably about 75% of the diameter of the stirring blade 11 a of the water flow generator 11. Further, it is preferable that the vertical position of the stirring blade 11 a of the water flow generator 11 is not protruded from the force draft tube 21 which is the lower part in the draft tube 21 as described above. However, the position in the vertical direction of the stirring blade 1 1 a of the draft tube 21 is not limited as long as the swirl flow is generated efficiently.
- the porous member 22 is assumed to be 3T instead of the water quality measuring device 18 in the first embodiment, for example, a plate having a large number of openings.
- This porous member 22 has a stable sludge interface, prevents the flocs from flowing upward, eliminates turbulence in the treated water, generates a rectification zone, and obtains stable and stable treated water. It is installed in. That is, the porous member 22 divides the inside of the coagulation separation tank 1 into upper and lower parts, easily generates a rectification region above the porous member 22, and easily forms a flock formation region (sludge region) below. generate.
- a flat punching metal, a net, a rectifying plate, an inclined plate, a slit, a honeycomb material, or the like can be used.
- the porous member 22 has a flat plate shape, but other concave shapes, convex shapes, and the like can be used. Furthermore, the aperture ratio of the porous member 22 can be changed in accordance with the properties of the raw water. For example, when the aperture ratio of the porous member 22 is 50%, the installation area of the trough of the water collector 12 is preferably 1 2 or less of the installation area of the porous member 22. That is, the speed at which the treated water passes through the porous member 22 may be the same as or less than the speed at which the treated water rises on the water surface other than the rough surface.
- the guide plate 2 3 changes the upward flow rising between the inner surface of the agglomeration separation tank 1 and the outer surface of the draft tube 21 to a horizontal flow (concentric flow) to 0 by the baffle effect. It is an annular flat plate that projects horizontally from the inner surface of the agglomeration separation tank 1.
- the guide plate 2 3 is directed horizontally.
- a guide plate 2 3 is provided in the vertical direction to prevent the swirling flow from being generated stably and to prevent co-rotation.
- guide plates 23 it is also possible to provide guide plates 23 in both the horizontal and vertical directions. This kind of guide plate 23 can also be a curved plate instead of a flat plate. It is.
- the water to be treated becomes a turbulent state due to the stirring of the water flow generator 1 "I in the draft tube 21, and a floc with a large specific gravity is formed.
- the lower part of the draft tube 21 falls. It turns into a horizontal flow (radial flow) at its lower end and becomes an upward flow in the vertical direction between the inner surface of the agglomeration separation tank 1 and the outer surface of the draft device 21.
- the horizontal flow (centric flow) between the upper end of the draft tube 2 1 and the porous member 2 is caused by the downward flow generated in the tube 21.
- the floc rides on the swirl flow again and drafts again.
- the guide plate 2 3 helps the swirl flow to easily change from ascending flow to horizontal flow (centric flow), a sludge interface is formed, and the treated water is porous. Pass through member 2 2 and overflow to collector 1 2.
- Embodiment 2 In order to efficiently perform solid-liquid separation by swirling flow, it is desirable to form a small and heavy flock, that is, a heavy hook with a small flow resistance and a large mass.
- the high specific gravity material 9 and the coagulant aid 10 are added to the mixed liquid (the liquid in which the raw water and the coagulant 6 are mixed), the efficiency of solid-liquid separation is improved. It ’s also a heavy frock.
- the floc concentration in the lower part of the agglomeration separation tank 1 is also increased, the number of collisions between flocs in the agglomeration part and the number of collisions between the primary particles and the hooks are increased, and the agglomeration effect is improved. Miniaturization is possible.
- the floc is not settled by gravity, but the circulation flow accompanying the stirring of the water flow generator 1 1, that is, the inner surface of the flocculation separation tank 1 and the upper end of the draft tube 2 1.
- the solid-liquid separation process can be promoted by making the flow rate of the horizontal flow (centric flow) generated during the period sufficiently larger than the rising flow rate of the water to be treated. Then, the water to be treated containing the high specific gravity material 9 and the coagulation aid 10 is stirred immediately after flowing into the coagulation separation tank 1, whereby the coagulation aid 10 can be uniformly dispersed.
- colloidal substances and suspended substances in the water to be treated can grow into large flocs around the high specific gravity material 9 so that the solid-liquid separation process can be performed more efficiently. You can. Furthermore, removal of S S removal rate of 80% or more is possible in 2 to 3 minutes. At this time, the high specific gravity material 9 needs to be contained in the block at a constant concentration with respect to the inflow water (raw water, treated water not containing the flocculant 6). 0 0 0-5, 0 0 0 mg / L is preferable. The addition strength can be changed according to the water quality and properties such as the viscosity of water. Embodiment 3.
- FIG. 3 is a main part flow diagram showing an aggregating / separating apparatus according to Embodiment 3 for carrying out the present invention.
- a wet liquid cyclone is used for the separator 8 as in the first embodiment.
- the separator 3 1 has a high specific gravity from sludge from the sludge transfer pipe 15.
- the material 9 is separated by gravity, and the separated high specific gravity material 9 is returned to the high specific gravity material addition equipment 4. Therefore, the separator 3 1 is equipped with a tank 3 2 that contains the sludge from the sludge transfer pipe 15, and in this tank 3 2, a relatively heavy high specific gravity material out of the sludge that flows from the sludge transfer pipe 15.
- Sediment 9 by gravity to allow relatively light sludge to overflow from the top of tank 3 2. Then, the high specific gravity material 9 settled in the tank 3 2 is supplied to the high specific gravity material addition equipment 4 through the supply pipe 33, and the sludge overflowing from the tank 3 2 is transferred out of the system.
- the sedimentation speed of the high specific gravity material 9 is about 7 O m / h, and the sedimentation speed of sludge is 3 to 4 m. Since the sedimentation rate of the high specific gravity material 9 becomes extremely higher than the sedimentation rate of sludge, the high specific gravity material 9 can be separated by gravity sedimentation in a short time of about 5 minutes. The same effect as in the second embodiment can be obtained with the aggregating and separating apparatus in the third embodiment.
- FIG. 4 is a main part flow diagram showing the coagulation / separation apparatus according to Embodiment 4 for carrying out the present invention.
- the inner end of the guide plate 23 is arranged higher than the outer end.
- FIG. 5 is a main part flow diagram showing an aggregating / separating apparatus according to Embodiment 5 for carrying out the present invention.
- the high specific gravity material 9 is injected into the raw water introduction pipe 5 on the downstream side of the coagulation aid injection port 10a. Therefore, the high specific gravity material addition facility 4 in the second embodiment is a raw water storage tank 4 A having only the screen 7.
- the same effect as in the second embodiment can be obtained also in the aggregation / separation device in the fifth embodiment.
- the coagulation aid 10 may be added before the mixed solution flows into the coagulation separation tank 1, but coagulation aid is introduced immediately after the mixed solution is introduced in the vicinity of the raw water inlet 5a in the coagulation separation tank 1. It may be mixed well with the agent 10.
- FIG. 6 is a main part flow diagram showing the coagulation / separation apparatus in Embodiment 6 for carrying out the present invention.
- the high specific gravity material 9 is directly fed into the agglomeration separation tank "!.
- the high specific gravity material supply port 8a from the separator 8 is connected to the raw water introduction port 5a. It is arranged in the vicinity so that the high specific gravity material 9 is securely put on the swirling flow in the draft tube 21. For this reason, 6
- the high specific gravity material addition facility 4 in Form 2 is a raw water storage tank 4 A having only a screen 7.
- the same effect as in the second embodiment can be obtained also in the aggregating and separating apparatus in the sixth embodiment.
- FIG. 7 is a main part flow diagram showing an aggregating / separating apparatus according to Embodiment 7 for carrying out the present invention.
- the intermediate part 5 b of the raw water introduction pipe 5 is inclined downward with respect to the flow direction, and the high specific gravity material 9 and the coagulant aid 10 are placed at the uppermost part of the intermediate part 5 b of the raw water introduction pipe 5.
- the lower end is supplied.
- the high specific gravity material addition facility 4 in the second embodiment is a raw water storage tank 4 A having only the screen 7.
- FIG. 8 is a main part flow diagram showing the coagulation / separation apparatus according to Embodiment 8 for carrying out the present invention.
- the raw water inlet 5 a of the raw water inlet pipe 5 is led from the side of the flocculation separation tank 1 to the inside of the draft tube 21. That is, the raw water introduction pipe 5 passes through the side wall of the flocculation separation tank 1 and the side wall of the draft tube 21, and is a mixed liquid containing a high specific gravity material 9 and a flocculating aid 10 (a liquid in which raw water and the flocculating agent 6 are mixed). ) Is surely placed on the swirling flow in the draft tube 21.
- FIG. 9 is a main part flow diagram showing the coagulation / separation apparatus according to Embodiment 9 for carrying out the present invention.
- the position of the raw water inlet 5a of the raw water inlet pipe 5 and the position of the water flow generator 11 are the same as those in the second embodiment.
- the flocculating / separating apparatus according to the ninth embodiment the same effects as those of the first embodiment can be obtained, and the swirl flow can be satisfactorily formed by the draft tube 21.
- FIG. 10 is a main part flow diagram showing the flocculation / separation apparatus according to Embodiment 10 for carrying out the present invention.
- a pipe 4 3 is provided to return to the coagulation separation tank 1.
- the inner end of the pipe 41 is arranged so as to extract the sludge at the sludge interface K, and the sludge settled in the tank 42 is discharged out of the system.
- the same effects as those of the first embodiment can be obtained, and the swirl flow can be satisfactorily formed by the draft tube 21.
- Embodiment 1 1.
- FIG. 11 is a main part flow diagram showing the coagulation / separation apparatus in the embodiment 11 for carrying out the present invention.
- 2 A is provided inside the flocculation tank 1.
- the flocculation / separation apparatus in Embodiment 1 the same effects as in Embodiment 1 can be obtained, and a swirl flow can be satisfactorily formed by the draft tube 2 1. Can absorb the disturbance of the treated water quality.
- FIG. 1 is a main part flow diagram showing the coagulation / separation apparatus in the embodiment 11 for carrying out the present invention.
- Embodiment 12 is a main part flow diagram showing the coagulation / separation apparatus in the embodiment 12 for carrying out the present invention.
- the same reference numerals are given to the same parts as in FIG.
- this Embodiment 1 only the draft tube 21 is added to the flocculation / separation apparatus in Embodiment 1 above, and a water collector equipped with a filter instead of the water collector 1 2 in Embodiment 1 1 2 A is provided outside the agglomeration tank 1.
- the same effects as those of the first embodiment can be obtained, and the swirl flow can be satisfactorily formed by the draft tube 21.
- FIG. 13 is a principal part flow diagram showing the flocculation / separation apparatus according to Embodiment 13 for carrying out the present invention.
- a line mixer 5 1 is provided in place of the mixing tank 2 in Embodiment 2 above.
- This line mixer 51 is composed of, for example, a pipe having the same diameter as the raw water inlet 2 a or the raw water introduction pipe 3 and a screw arranged in the pipe, and the flocculant 6 is screwed into the raw water flowing in the pipe. can do.
- This line mixer 51 can form flocs only by injecting the flocculant 6 into the raw water even with a pipe having no screw.
- a static mixer having a simple structure that promotes mixing and stirring by generating a vortex inside.
- WESTFALL INKA Static-Injection Mixer Mod I 2 80 0 0 manufactured by Nippon Inka Co., Ltd. may be mentioned.
- the same effects as in the second embodiment can be obtained with the aggregating and separating apparatus in the first and third embodiments.
- Embodiments 3 to 13 have described the provision of the draft tube 21 in the circular agglomeration separation tank 1, but as shown in Fig. 14, a plurality of rectangular agglomeration separation tanks 1A are connected in series.
- a plurality of rectangular agglomeration separation tanks 1A are connected in series.
- the draft tube 21 in each flocculation tank 1A it is possible to cope with cases where there are independent reactions or inflow fluctuations.
- four rectangular agglomeration separation tanks 1 A can be arranged in a square shape, and a draft tube 21 can be arranged in each agglomeration separation tank 1 A.
- multiple octagonal flocculant separation tanks 1 B are arranged in a straight line, and as shown in Fig.
- multiple octagonal flocculant separation tanks 1 B are installed in a honeycomb shape. It is also possible to do. In addition, although not shown, it is possible to arrange a plurality of draft tube tubes in one agglomeration separation tank so that they do not compete with each other. In this case, it is necessary to balance with the performance of the water flow generator.
- the guide plate 23 is provided in the horizontal direction or the substantially horizontal direction.
- the guide plate 2 The shape and direction of 3 are not limited to the above.
- a plurality of guide plates 2 3 A are provided in the vertical direction as shown in Fig. 18 to rotate the swirling flow together. It is preferable to prevent this. That is, it is preferable to provide a plurality of, for example, four guide plates 23 A on the inner surface of the cylindrical agglomeration separation tank 1 at equal intervals in the vertical direction.
- the guide plate 2 3 A converts the horizontal swirling flow generated by the stirring action of the water flow generator 1 1 into a vertical flow by the baffle effect, and rectifies the flow of the water to be treated in the upward direction.
- This type of vertical guide 2 3 A can be provided in one coagulation separation tank 1 together with the horizontal guide plate 2 3. In this case, it is possible to help the rectification of the upward flow by the vertical guide plate 23 A and the rectification of the horizontal flow (centric flow) by the horizontal guide plate 23.
- the agglomeration separation tank 1 is polygonal, the inner surface restricts the circulation of the swirling flow, so the vertical guide plate 23 A may not be provided.
- the opening 61b is elongated above the triangular tube 61a as shown in Fig. 19.
- a trough 63 having a large number of small holes 6 3b arranged in a row in the longitudinal direction at the top of the tube 63a can be used. It is also possible to combine a plurality of triangular troughs 64 as shown in Fig. 22.
- a trough 65 having a slope 65a as shown in Fig. 23, although not submerged, can be used.
- the vertical surface 6 6 a is present as shown in Fig. 24.
- Filter body 6 6 b Filter medium 6 6 G Combined with G or rectifier plate (not shown) 1 2 B, Box body with slope 6 7 a as shown in Figure 25 5 7 7 Filter medium 6 7 b
- a water collector combined with c 1 2 G can be used.
- the water collector 1 2 is also as shown in FIGS.
- a filtering function can be provided.
- spherical filter media having a specific gravity of 1.0 or less can be used for the filter media 66 c and 67 c. Even in the case of a filter medium having a tensile force of 1 or more, it can be used in the same way by providing a screen or the like under the filter medium.
- a rectifying plate in which vertical or inclined flat plates are evenly arranged is used for the collector 12. It is also possible. Normally, it is sufficient to use troughs that collect supernatant water from the water surface or underwater as shown in Fig. 19 to Fig. 23, or a conduit pipe that is not shown, and use them appropriately according to the properties of the raw water. Good example
- Embodiment 1 This was carried out using the flocculation / separation apparatus in Embodiment 1 shown in FIG.
- raw water and influent of primary sedimentation of sewage treatment plant by adding flocculant (inorganic flocculant) 6 addition ratio 1 Omg / L (AI 2 0 3 basis) relative to the raw water a P AC
- flocculant inorganic flocculant
- addition ratio 1 Omg / L (AI 2 0 3 basis) relative to the raw water a P AC
- sand was added at a concentration of 3 to OOOmgZL with respect to the raw water
- a coagulant aid 10 a polymer flocculant was added to the raw water at a concentration of 1 mgZL.
- Table 1 Based on these conditions, the results shown in Table 1 were obtained for the relationship among the influent water volume, equipment residence time, raw water SS, treated water SS, SS removal rate, sludge concentration, and sludge withdrawal volume.
- the SS removal rate was 80% or more in the apparatus residence time of 10 minutes, and treated water with good water quality was obtained.
- the removal of the SS with a removal rate of 80% or more reduces the residence time of the equipment by balancing the sludge interface K with the water quality meter 1 8 and adding the high specific gravity material 9. This is due to the fact that the sludge interface K was created in a short time by the swirling flow by efficiently promoting aggregation and forming heavy floc.
- Embodiment 2 This was carried out using the flocculation / separation apparatus in Embodiment 2 shown in FIG.
- the implementation conditions were the same as in Example 1 above. Based on these conditions, the implementation results shown in Table 2 were obtained for the relationship among the influent water volume, equipment residence time, raw water SS, treated water SS, SS removal rate, sludge concentration, and sludge withdrawal amount. As can be seen from Table 2, the SS removal rate was 80 % or more after 3 minutes of equipment residence time, and treated water with good water quality could be obtained.
- the device retention time for the removal of the SS removal rate 80% or less is shortened, by promoting efficient agglomeration of the draft Bok tube 2 1 Therefore floppy click, to form a heavy floc
- the sludge interface K was created in a short time by the swirling flow.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05790471A EP1813336A4 (en) | 2004-09-30 | 2005-09-29 | Coagulation removal apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004287920A JP3954055B2 (ja) | 2004-09-30 | 2004-09-30 | 凝集分離装置 |
JP2004-287920 | 2004-09-30 |
Publications (1)
Publication Number | Publication Date |
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WO2006036014A1 true WO2006036014A1 (ja) | 2006-04-06 |
Family
ID=36119131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/018496 WO2006036014A1 (ja) | 2004-09-30 | 2005-09-29 | 凝集分離装置 |
Country Status (7)
Country | Link |
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EP (1) | EP1813336A4 (ja) |
JP (1) | JP3954055B2 (ja) |
KR (1) | KR100810334B1 (ja) |
CN (1) | CN101072615A (ja) |
MY (1) | MY139683A (ja) |
TW (1) | TWI300006B (ja) |
WO (1) | WO2006036014A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1980673A2 (en) | 2007-04-10 | 2008-10-15 | AGCO GmbH | Loader attachment having at least two parallel arms |
CN108298652A (zh) * | 2016-11-23 | 2018-07-20 | 浙江传超环保科技有限公司 | 均相氧化混凝器 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE1050451A1 (sv) * | 2010-05-06 | 2011-07-19 | Bert Gustafsson | Sätt och anläggning för att rena råvatten |
KR101005470B1 (ko) * | 2010-08-11 | 2011-01-05 | 이준상 | 동력학적 전기분해 및 철 여과를 통한 생물학적 처리수의 인 제거 장치 |
GB2502670B (en) * | 2012-03-21 | 2015-01-14 | Innovative Ind Ltd | Water recycling unit |
EP2828204A2 (en) * | 2012-03-21 | 2015-01-28 | Innovative Industries Limited | Water recycling unit |
JP6074836B2 (ja) * | 2012-06-14 | 2017-02-08 | 日本ソリッド株式会社 | 横流沈澱池 |
EP3392209A1 (en) * | 2017-04-21 | 2018-10-24 | Chemical Equipment Scandinavia AB | Fluid treatment plant |
CN109279688B (zh) * | 2018-11-02 | 2021-05-14 | 苏伊士水务工程有限责任公司 | 澄清池及其污泥回流和颗粒载体回收方法 |
WO2020132261A1 (en) * | 2018-12-20 | 2020-06-25 | Deep Reach Technology, Inc. | Multiphase separation and pressure letdown method |
EP3730461A3 (en) * | 2019-04-25 | 2020-11-25 | CWC Clear Water Clarification Technologies Inc. | Fluid treatment system |
CN111875211A (zh) * | 2020-06-17 | 2020-11-03 | 上海仁创环境科技有限公司 | 一种泥水浓缩分离装置及分离方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09141006A (ja) * | 1995-11-21 | 1997-06-03 | Kurita Water Ind Ltd | 凝集沈殿装置 |
JP2000271407A (ja) * | 1999-03-26 | 2000-10-03 | Japan Organo Co Ltd | 凝集沈澱装置 |
JP2000325705A (ja) * | 1999-05-19 | 2000-11-28 | Japan Organo Co Ltd | 凝集沈澱装置 |
JP2002058912A (ja) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | 旋回流式凝集分離装置 |
JP2002058913A (ja) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | 撹拌流形成手段を有する固液分離装置 |
JP2002282605A (ja) * | 2001-03-28 | 2002-10-02 | Nishihara Environ Sanit Res Corp | 強制循環式分離装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2391738A (en) * | 1941-12-08 | 1945-12-25 | Infilco Inc | Liquid treating apparatus |
US2425371A (en) * | 1943-01-07 | 1947-08-12 | Infilco Inc | Apparatus and process for improving separation of clarified liquid from a slurry by subdividing the slurry at the separation interface into a plurality of shallow streams |
US5840195A (en) * | 1995-05-01 | 1998-11-24 | Omnium De Traitement Et De Valorisation | Method and installation for treating an untreated flow by simple sedimentation after ballasting with fine sand |
EP1197474A1 (en) * | 2000-10-10 | 2002-04-17 | Patrick W. Hanlon | Tapered flocculation water treatment |
-
2004
- 2004-09-30 JP JP2004287920A patent/JP3954055B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-29 KR KR1020067005103A patent/KR100810334B1/ko not_active IP Right Cessation
- 2005-09-29 EP EP05790471A patent/EP1813336A4/en not_active Withdrawn
- 2005-09-29 TW TW094134072A patent/TWI300006B/zh active
- 2005-09-29 MY MYPI20054600A patent/MY139683A/en unknown
- 2005-09-29 CN CNA2005800009448A patent/CN101072615A/zh active Pending
- 2005-09-29 WO PCT/JP2005/018496 patent/WO2006036014A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09141006A (ja) * | 1995-11-21 | 1997-06-03 | Kurita Water Ind Ltd | 凝集沈殿装置 |
JP2000271407A (ja) * | 1999-03-26 | 2000-10-03 | Japan Organo Co Ltd | 凝集沈澱装置 |
JP2000325705A (ja) * | 1999-05-19 | 2000-11-28 | Japan Organo Co Ltd | 凝集沈澱装置 |
JP2002058912A (ja) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | 旋回流式凝集分離装置 |
JP2002058913A (ja) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | 撹拌流形成手段を有する固液分離装置 |
JP2002282605A (ja) * | 2001-03-28 | 2002-10-02 | Nishihara Environ Sanit Res Corp | 強制循環式分離装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1813336A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1980673A2 (en) | 2007-04-10 | 2008-10-15 | AGCO GmbH | Loader attachment having at least two parallel arms |
CN108298652A (zh) * | 2016-11-23 | 2018-07-20 | 浙江传超环保科技有限公司 | 均相氧化混凝器 |
CN108298652B (zh) * | 2016-11-23 | 2023-11-28 | 浙江传超环保科技有限公司 | 均相氧化混凝器 |
Also Published As
Publication number | Publication date |
---|---|
EP1813336A4 (en) | 2009-01-28 |
TWI300006B (en) | 2008-08-21 |
EP1813336A1 (en) | 2007-08-01 |
JP3954055B2 (ja) | 2007-08-08 |
KR100810334B1 (ko) | 2008-03-06 |
MY139683A (en) | 2009-10-30 |
TW200621345A (en) | 2006-07-01 |
KR20070043687A (ko) | 2007-04-25 |
JP2006095493A (ja) | 2006-04-13 |
CN101072615A (zh) | 2007-11-14 |
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