NL2012619B1 - Assembly of a flocculation device, an ozone introduction device and a separator device and method for operating such an assembly. - Google Patents

Assembly of a flocculation device, an ozone introduction device and a separator device and method for operating such an assembly. Download PDF

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Publication number
NL2012619B1
NL2012619B1 NL2012619A NL2012619A NL2012619B1 NL 2012619 B1 NL2012619 B1 NL 2012619B1 NL 2012619 A NL2012619 A NL 2012619A NL 2012619 A NL2012619 A NL 2012619A NL 2012619 B1 NL2012619 B1 NL 2012619B1
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Netherlands
Prior art keywords
ozone
mixture
flocculation
assembly
inlet
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NL2012619A
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Dutch (nl)
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NL2012619A (en
Inventor
Kluit Arie
Willem Herman Menkveld Hendrik
Catherina Boelee Nadina
Ruitenberg Antonie
Holterman Menno-Martijn
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Nijhuis Water Tech B V
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Priority to NL2012619A priority Critical patent/NL2012619B1/en
Priority to PCT/NL2015/050240 priority patent/WO2015160243A1/en
Publication of NL2012619A publication Critical patent/NL2012619A/en
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Publication of NL2012619B1 publication Critical patent/NL2012619B1/en

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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • B01D21/0045—Plurality of essentially parallel 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
    • B01D21/2433—Discharge mechanisms for floating particles
    • B01D21/2438—Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles
    • 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
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention relates to an assembly of a flocculation device and a separator device for separating a first liquid substance from a second substance, the two substances forming a mixture, the separator device comprising a vessel with an inlet for receiving the mixture, a first outlet for discharge of a first fraction of the mixture, a second outlet for discharge of a second fraction of the mixture, the second outlet being situated at an upper part of the separator device, the flocculation device comprising an inlet portion with an inlet for raw waste water, a flocculation portion in fluid connection with the inlet portion, the flocculation portion being in fluid connection with the inlet of the vessel for supplying the mixture thereto, wherein the separator device comprises a return duct in fluid connection with the first outlet and in fluid connection with the flocculation device, the inlet or the vessel via a gas mixing device, wherein the gas mixing device is configured for during use introducing a gas mixture comprising air into the return duct to obtain an aerated fluid, characterized in that the flocculation device is in fluid connection with an ozone introduction device for during use introducing ozone into the flocculation device.

Description

ASSEMBLY OF A FLOCCULATION DEVICE, AN OZONE INTRODUCTION DEVICE AND A SEPARATOR DEVICE AND METHOD FOR OPERATING
SUCH AN ASSEMBLY
Field of the invention [0001] The present invention relates to an assembly of a flocculation device and a separator device for separating a first liquid substance from a second substance, the two substances forming a mixture, the separator device comprising: a vessel with an inlet for receiving the mixture, a first outlet for discharge of a first fraction of the mixture, a second outlet for discharge of a second fraction of the mixture, the second outlet being situated at an upper part of the separator device, the flocculation device comprising: an inlet portion with an inlet for raw waste water, a flocculation portion in fluid connection with the inlet portion, the flocculation portion being in fluid connection with the inlet of the vessel for supplying the mixture thereto, wherein the separator device comprises a return duct in fluid connection with the first outlet and in fluid connection with the flocculation device, the inlet or the vessel via a gas mixing device, wherein the gas mixing device is configured for during use introducing a gas mixture comprising air into the return duct to obtain an aerated fluid.
Background of the invention [0002] Such an assembly is known from, for example, US 4.156.648. This patent publication describes an assembly of a flocculation device and a separator device for separating a first liquid substance from a second substance in a mixture introduced by the flocculation device in the separator device. Therein, ozone is directly introduced into the vessel by an ozone generator to create a relatively thick foam by oxidizing organic matter in the mixture. Furthermore, the introduction of ozone facilitates disinfection. The foam floats to the surface of the mixture in the vessel and can be scraped off subsequently.
[0003] A disadvantage of the known assembly, however, is that sometimes a relatively large amount of chemicals is needed in the flocculation device to achieve a sufficient degree of coagulation and/or flocculation.
[0004] It is therefore an object of the present invention to provide an assembly of a flocculation device and a separator device, wherein the amount of chemicals required in the flocculation device to achieve a sufficient degree of coagulation and/or flocculation can be reduced. Further objects of the invention are to achieve oxidation and/or to remove unpleasant odours.
Summary of the invention [0005] Hereto the assembly according to the invention is characterized in that the flocculation device is in fluid connection with an ozone introduction device for during use introducing ozone into the flocculation device.
[0006] The inventors have found that ozone acts as a powerful coagulant (such as for proteins, organic particles), as a result of which the amount of chemicals required in the flocculation device can be reduced.
[0007] Furthermore, the ozone aids with dissolving certain fractions in the flocculation device, due to its powerful oxidizing properties. Another advantage is that ozone neutralizes gaseous compounds causing odour.
[0008] In the context of this patent application a ‘vessel’ is to be interpreted in a broad sense and can for instance comprise a tank, pressure vessel, a reservoir, et cetera. Analogously, a separator device can comprise a Dissolved Air Flotation (DAF) unit, a hydro cyclone separator, a membrane separator, et cetera.
[0009] An embodiment relates to an aforementioned assembly wherein the ozone introduction device is formed by the gas mixing device, which during use introduces a gas mixture comprising ozone into the return fluid to obtain an ozonated return fluid. Thus, the return duct and gas mixing device can be advantageously used for supplying ozone to the flocculation device.
[0010] Another embodiment concerns an aforementioned assembly, wherein the flocculation device comprises a coagulation portion, wherein the coagulation portion is in fluid connection with the ozone introduction device for during use introducing ozone into the coagulation portion of flocculation device. By direct injection of ozone in the coagulant portion of the flocculation device, the coagulant effects of the ozone are optimized.
[0011] Therein, the return duct can be in fluid connection with this coagulation portion.
[0012] An embodiment relates to an aforementioned assembly, wherein the return duct is furthermore in fluid connection with a lower part of the vessel or the inlet of the vessel.
[0013] Advantageously, the concentration of ozone in the gas mixture is adjusted for the type of water to be treated and the purpose of the treatment.
[0014] Therein, for oxidation purposes the concentration of ozone in the gas mixture can be approximately 1-100%, more preferably 20-100 %, even more preferably 30-100 %, yet even more preferably 50-100 %, and/or for coagulation and/or odour removal purposes the concentration of ozone in the gas mixture is approximately 0.1-100 %, more preferably 1 - 50 %.
[0015] It should be noted that the ozone can additionally be introduced in the (first) outlet of the vessel.
[0016] A further embodiment relates to an aforementioned assembly, wherein the vessel comprises a flow element comprising a number of parallel tubular channels defining a flow path for the mixture, the channels having an inlet end for receiving the mixture and an outlet end for discharge of the first fraction, a length direction of the channels being inclined with respect to a horizontal direction, wherein in a transverse cross-section through the flow element, the channels form a two-dimensional array of closed cells, each cell defining a boundary of a flow channel, the cells being arranged in at least two rows, each cell in a first row contacting with its perimeter a cell in the second row, wherein an upper side of the flow channels being in fluid communication with the inlet for forming a flow path for the mixture from the upper to a lower part of flow channels, the second outlet being situated at an upper part of the separator device in fluid communication with the upper part of the flow channels, a flow path for gas and the second fraction of the mixture extending from a lower part to an upper part of the flow channels.
[0017] By forming a two-dimensional array of enclosed flow channels, the channels have a decreased hydraulic diameter, and hence a lower Reynolds number. The small hydraulic diameter allows the Reynolds number of the flow element to remain low during operation which means that laminar flow conditions can be maintained even at high flow rates, while maintaining a favourable upwards rise rate of ozone and/or air bubbles and floatable material entrained by the bubbles through the flow channels. Hence the flow rate can be increased in the separation device while maintaining proper separation.
[0018] Due to the increased flow rate provided by the above embodiment, the rate at which ozone oxidizes matter contained in the vessel, and the rate at which ozone removes unwanted smells therefrom is also increased.
[0019] Another aspect of the invention relates to a method for operating an aforementioned assembly, comprising the steps of: introducing raw waste water into the inlet portion of the flocculation device, allowing coagulation and/or flocculation to occur in the flocculation device, wherein the mixture comprising the first liquid substance and the second substance is formed, introducing the mixture into the separator device, discharging the first fraction of the mixture via the first outlet, discharging the second fraction of the mixture via the second outlet, introducing ozone into the flocculation device with the ozone introduction device.
[0020] According to an embodiment, the aforementioned method further comprises the step of introducing a polymer into the flocculation device to improve its performance.
[0021] Another aspect of the invention relates to the use of ozone as a coagulation agent in an aforementioned assembly, wherein the ozone is for instance introduced in the coagulation portion of the flocculation device.
[0022] Again, preferably, the ozone is introduced into the coagulation portion of the flocculation device by using the ozonated fluid of the return duct.
Brief description of the drawings [0023] Embodiments of an assembly according to the invention will by way of nonlimiting example be described in detail with reference to the accompanying drawings. In the drawings: [0024] Figures 1A and IB show a frontal view and side view, respectively of an assembly of a flocculation device and a separator device according to the present invention.
Detailed description of the invention [0025] Figures 1A and IB show a frontal view and side view, respectively of an assembly of a flocculation device and a separator device according to the present invention.
[0026] Figure 1 shows a separator device 1, with an inlet 3 for receiving a mixture of substances, such as waste water, from a flocculation device 4. The assembly of the flocculation device 4 and separator device 1 is indicated with reference numeral 6.
[0027] The flocculation device 4 comprises an inlet for raw waste water 21 and a subsequent piping system with multiple curves, such as in a zigzag pattern, to achieve proper coagulation/flocculation. The flocculation device 4 comprises a coagulation portion 8, having a coagulant introduction portion, preferably relatively close the inlet 21, for the optional introduction of a coagulant. At the position of the coagulant introduction portion (not shown), the coagulation portion 8 has a pipe diameter that is comparatively small compared to the main part of the flocculation device’s 4 piping system, such as 0.6-0.9, preferably approximately 0.8 times. Basically a diameter reduction of approximately 10-20% is aimed for. Downstream of the coagulation portion 8, the flocculation device 4 furthermore comprises a further introduction portion having a polymer introduction portion 23 where a polymer can be introduced. The polymer introduction portion 23 preferably is situated relatively close to the inlet 3 of the separator device 1. Again, its diameter is relatively small compared to the main part of the flocculation device’s 4 piping system, such as 0.6-0.9, preferably about 0.9 times that diameter to facilitate proper mixing. It should be noted however that the geometry of the piping system is primarily to be calculated based on required mixing energy. Furthermore, generally less mixing energy is required for flocculation than for coagulation, as otherwise the floes formed during flocculation can be destroyed. Both the coagulant introduction portion 8 as well as the further introduction portion or the polymer introduction portion 23 can be used for introducing coagulant and/or flocculant if desired.
[0028] When entering the separator device 1 from the flocculation device 4, the mixture flows to an inlet end 5 of a flow element 7. The flow element 7 is schematically indicated in this figure, and comprises a 3-dimensional array of parallel flow channels. The flow channels are oriented at an angle to the horizontal, for instance at a slanting angle of 60°. From an outlet end 9 of the flow element 7, a first fraction of the mixture, such as water, flows through an upwardly extending channel 10 to an outlet 11, and from there to a first outlet 12. The second fraction, such as oil, grease or solids, is collected in compartment 19 and is discharged via a skimmer/scraper 20 through second outlet 13, shown in Figure IB. Heavy debris, such as sand, may be discharged through outlet 14. A return duct 15 is attached to the lower end of channel 10 and is via pump 16 (to pressurize the return fluid) connected to gas mixing device 17. In the gas mixing device 17, according to the invention, a gas mixture comprising ozone can be introduced such that ozonated water is formed, which ozonated water is fed to the flocculation device 4, such as the coagulation portion 8 thereof. A position just downstream of the coagulant introduction portion can advantageously be used for that purpose. The rest of the gas mixture may comprise compressed air.
[0029] Alternatively, the return duct 15 can be designed in such a way that the ozonated fluid is (also) introduced at a position in between the polymer introduction portion 23 of the flocculation device 4 and the inlet 3 of the separator device 1. Furthermore, a return duct 15 construction is conceivable wherein the ozonated fluid is introduced directly into the vessel 2, for instance at a position below or underneath the inlet 3, e.g. in the same vessel 2 wall where the inlet 3 is arranged. A suitable distributor 18 or valve may be used to facilitate the distribution of ozonated return fluid flow towards these positions. The distributor 18 can for instance be placed in the return duct 15 downstream of the gas mixing device 17. Another possibility is to connect the ozone introduction device 17 in such a way as to introduce ozone in the outlet 11 or first outlet 12.
[0030] Upon release of the pressure of the mixture of ozonated water and the substances to be separated at the inlet 3, small ozone and/or air bubbles are formed in the liquid to be separated, entraining floatable matter, which accumulates in the compartment 19 of the separator 1. The mixture of water and floatable matter flows vertically downward from inlet end 5 through the flow element 7, to the outlet end 9. Due to laminar flow, ozone and/or air bubbles rise upward against the flow direction, from the outlet end 9 to inlet end 5, entraining floatable matter upward to compartment 19 to be eventually removed via flotation sludge outlet 22 or first outlet 12.
[0031] Thus, the invention has been described by reference to the embodiments discussed above. It will be recognized that these embodiments are susceptible to various modifications and alternative forms well known to those of skill in the art without departing from the spirit and scope of the invention. Accordingly, although specific embodiments have been described, these are examples only and are not limiting upon the scope of the invention.
Reference numerals 1. Separator device 2. Vessel 3. Inlet of mixture 4. Flocculation device 5. Inlet end of flow element 6. Assembly of flocculation device and separator device 7. Flow element 8. Coagulant portion 9. Outlet end of flow element 10. Upwardly extending channel 11. Outlet 12. First outlet 13. Second outlet 14. Outlet 15. Return duct 16. Pump 17. Gas mixing device 18. Distributor 19. Compartment 20. Scraper/transport belt 21. Raw waste water inlet 22. Outlet for flotation sludge 23. Polymer introduction portion

Claims (13)

1. Samenstel (6) van een flocculatie-inrichting (4) en een scheidingsinrichting (1) voor het scheiden van een eerste vloeibare substantie van een tweede substantie, waarbij de twee substanties een mengsel vormen, waarbij de scheidingsinrichting (1) omvat: - een houder (2) met een inlaat (3) voor het ontvangen van het mengsel, - een eerste uitlaat (12) voor het afvoeren van een eerste fractie van het mengsel, een tweede uitlaat (13) voor het afvoeren van een tweede fractie van het mengsel, waarbij de tweede uitlaat (13) is gesitueerd bij een bovengedeelte van de scheidingsinrichting, waarbij de flocculatie-inrichting (4) omvat: een inlaatgedeelte met een inlaat (21) voor ongezuiverd afvalwater, een flocculatiegedeelte in vloeistofverbinding met het inlaatgedeelte, waarbij het flocculatiegedeelte in vloeistofverbinding staat met de inlaat (3) van de houder (2) voor het daaraan toevoeren van het mengsel, waarbij de scheidingsinrichting (1) een retourleiding (15) omvat in vloeistofverbinding met de eerste uitlaat (12) en in vloeistofverbinding met de flocculatie-inrichting (4), de inlaat (3) of de houder (2) via een gasmenginrichting (17), waarbij de gasmenginrichting (17) is geconfigureerd voor het tijdens gebruik inbrengen van een gasmengsel omvattend lucht in de retourleiding (15) om een beluchte vloeistof te verkrijgen, met het kenmerk dat de flocculatie-inrichting (4) in vloeistofverbinding staat met een ozoninbrenginrichting voor het tijdens gebruik inbrengen van ozon in de flocculatie-inrichting (4).An assembly (6) of a flocculating device (4) and a separating device (1) for separating a first liquid substance from a second substance, the two substances forming a mixture, the separating device (1) comprising: - a container (2) with an inlet (3) for receiving the mixture, - a first outlet (12) for discharging a first fraction of the mixture, a second outlet (13) for discharging a second fraction of the mixture, wherein the second outlet (13) is located at an upper portion of the separation device, the flocculating device (4) comprising: an inlet portion with an inlet (21) for raw sewage, a flocculation portion in fluid communication with the inlet portion, the flocculating portion is in fluid communication with the inlet (3) of the container (2) for supplying the mixture thereto, the separation device (1) comprising a return line (15) in fluid communication ng with the first outlet (12) and in fluid communication with the flocculating device (4), the inlet (3) or the container (2) via a gas mixing device (17), the gas mixing device (17) being configured for use during use introducing a gas mixture comprising air into the return line (15) to obtain an aerated liquid, characterized in that the flocculating device (4) is in fluid communication with an ozone introducing device for introducing ozone into the flocculating device (4) during use ). 2. Samenstel (6) volgens conclusie 1, waarbij de ozoninbrenginrichting wordt gevormd door de gasmenginrichting (17), die tijdens gebruik een gasmengsel omvattend ozon in de retourvloeistof inbrengt om een ozonbevattende retourvloeistof te verkrijgen.An assembly (6) according to claim 1, wherein the ozone introducing device is formed by the gas mixing device (17), which in use introduces a gas mixture comprising ozone into the return liquid to obtain an ozone-containing return liquid. 3. Samenstel (6) volgens conclusie 1 of 2, waarbij de flocculatie-inrichting een coagulatiegedeelte (8) omvat, waarbij het coagulatiegedeelte in vloeistofverbinding staat met de ozoninbrenginrichting voor het tijdens gebruik inbrengen van ozon in het coagulatiegedeelte van de flocculatie-inrichting (4).An assembly (6) according to claim 1 or 2, wherein the flocculation device comprises a coagulation section (8), the coagulation section being in fluid communication with the ozone introducer for introducing ozone into the coagulation section of the flocculation device (4) during use ). 4. Samenstel (6) volgens conclusie 3, waarbij de retourleiding (15) in vloeistofverbinding staat met het coagulatiegedeelte.Assembly (6) according to claim 3, wherein the return line (15) is in fluid communication with the coagulation section. 5. Samenstel (6) volgens een van de voorgaande conclusies, waarbij de retourleiding in vloeistofverbinding staat met een benedengedeelte van de houder of de inlaat (3) van de houder.Assembly (6) according to one of the preceding claims, wherein the return line is in fluid communication with a lower part of the container or the inlet (3) of the container. 6. Samenstel (6) volgens een van de voorgaande conclusies, waarbij de concentratie van ozon in het gasmengsel is aangepast voor het type te behandelen water en het doel van de behandeling.An assembly (6) according to any one of the preceding claims, wherein the concentration of ozone in the gas mixture is adjusted for the type of water to be treated and the purpose of the treatment. 7. Samenstel (6) volgens conclusie 6, waarbij voor oxidatiedoeleinden de concentratie ozon in het gasmengsel ongeveer 1-100 %, bij grotere voorkeur 20-100 %, bij nog grotere voorkeur 30-100 %, bij zelfs nog grotere voorkeur 50-100% is, en/of voor coagulatie- en/of geurverwijderingsdoeleinden de concentratie ozon in het gasmengsel ongeveer 0,1-100 %, bij voorkeur 1-50 % is.An assembly (6) according to claim 6, wherein for oxidation purposes the concentration of ozone in the gas mixture is about 1-100%, more preferably 20-100%, even more preferably 30-100%, even more preferably 50-100 %, and / or for coagulation and / or odor removal purposes, the ozone concentration in the gas mixture is about 0.1-100%, preferably 1-50%. 8. Samenstel (6) volgens een van de voorgaande conclusies, waarbij de ozon wordt ingebracht in de eerste uitlaat (12) van de houder.An assembly (6) according to any one of the preceding claims, wherein the ozone is introduced into the first outlet (12) of the container. 9. Samenstel volgens een van de voorgaande conclusies, waarbij de houder (2) een stromingselement (7) omvat, omvattend een aantal parallelle, buisvormige kanalen die een stromingspad voor het mengsel definiëren, waarbij de kanalen een inlaateinde (8) hebben voor het ontvangen van het mengsel en een uitlaateinde (9) voor het afvoeren van de eerste fractie, waarbij een lengterichting van de kanalen helt ten opzichte van een horizontale richting, waarbij in een dwarsdoorsnede door het stromingselement de kanalen een tweedimensionale reeks van gesloten cellen (22) vormen, waarbij elke cel een grens van een stromingskanaal definieert, waarbij de cellen zijn aangebracht in ten minste twee rijen, waarbij elke cel in een eerste rij een cel in de tweede rij aanraakt met zijn omtrek, waarbij een bovenzijde van de stromingskanalen in vloeistofcommunicatie staat met de inlaat (3) voor het vormen van een stromingspad voor het mengsel van het bovengedeelte naar het benedengedeelte van de stromingskanalen, waarbij de tweede uitlaat (13) is gesitueerd bij een bovengedeelte van de scheidingsinrichting in vloeistofcommunicatie met het bovengedeelte van de stromingskanalen, waarbij een stromingspad voor gas en de tweede fractie van het mengsel zich uitstrekt van een benedengedeelte naar een bovengedeelte van de stromingskanalen.An assembly according to any one of the preceding claims, wherein the holder (2) comprises a flow element (7), comprising a number of parallel, tubular channels defining a flow path for the mixture, the channels having an inlet end (8) for receiving of the mixture and an outlet end (9) for discharging the first fraction, wherein a longitudinal direction of the channels is inclined with respect to a horizontal direction, wherein in a cross-section through the flow element the channels form a two-dimensional series of closed cells (22) wherein each cell defines a boundary of a flow channel, the cells being arranged in at least two rows, each cell in a first row touching a cell in the second row with its circumference, an upper side of the flow channels being in fluid communication with the inlet (3) for forming a flow path for the mixture from the upper part to the lower part of the flow ch channels, wherein the second outlet (13) is located at an upper portion of the separation device in fluid communication with the upper portion of the flow channels, wherein a gas flow path and the second fraction of the mixture extends from a lower portion to an upper portion of the flow channels. 10. Werkwijze voor het bedrijven van een samenstel volgens een van de voorgaande conclusies, omvattende de stappen van: het inbrengen van ongezuiverd afvalwater in het inlaatgedeelte van de floccul atie-inri chting, het toestaan dat coagulatie en/of flocculatie plaatsvindt in de flocculatie-inrichting, waarbij het mengsel dat de eerste vloeibare substantie en de tweede substantie omvat, wordt gevormd, het inbrengen van het mengsel in de scheidingsinrichting, het afvoeren van de eerste fractie van het mengsel via de eerste uitlaat, het afvoeren van de tweede fractie van het mengsel via de tweede uitlaat, het inbrengen van ozon in de flocculatie-inrichting met de ozoninbrenginrichting.A method of operating an assembly according to any of the preceding claims, comprising the steps of: introducing raw water into the inlet portion of the flocculation device, allowing coagulation and / or flocculation to take place in the flocculation device device, wherein the mixture comprising the first liquid substance and the second substance is formed, introducing the mixture into the separation device, discharging the first fraction of the mixture through the first outlet, draining the second fraction of the mixture through the second outlet, introducing ozone into the flocculator with the ozone introducer. 11. Werkwijze volgens conclusie 10, voorts omvattend de stap van het inbrengen van een polymeer in de flocculatie-inrichting (4).The method of claim 10, further comprising the step of introducing a polymer into the flocculation device (4). 12. Gebruik van ozon als coagulatiemiddel in een samenstel (6) volgens een van de conclusies 1-9, waarbij de ozon bijvoorbeeld wordt ingebracht in het coagulatiegedeelte (8) van de flocculatie-inrichting.Use of ozone as a coagulating agent in an assembly (6) according to any of claims 1-9, wherein the ozone is introduced, for example, into the coagulating section (8) of the flocculating device. 13. Gebruik van ozon volgens conclusie 12, waarbij de ozon wordt ingebracht in het coagulatiegedeelte van de flocculatie-inrichting, bijvoorbeeld door gebruik te maken van de ozonbevattende vloeistof van de retourleiding.The use of ozone as claimed in claim 12, wherein the ozone is introduced into the coagulation portion of the flocculation device, for example by using the ozone-containing liquid from the return line.
NL2012619A 2014-04-14 2014-04-14 Assembly of a flocculation device, an ozone introduction device and a separator device and method for operating such an assembly. NL2012619B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL2012619A NL2012619B1 (en) 2014-04-14 2014-04-14 Assembly of a flocculation device, an ozone introduction device and a separator device and method for operating such an assembly.
PCT/NL2015/050240 WO2015160243A1 (en) 2014-04-14 2015-04-14 Assembly of a flocculation device, an ozone introduction device and a separator device and method for operating such an assembly

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