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WO2010067187A1 - Bubble-generation system immersed in a liquid-processing tank - Google Patents

Bubble-generation system immersed in a liquid-processing tank Download PDF

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Publication number
WO2010067187A1
WO2010067187A1 PCT/IB2009/007712 IB2009007712W WO2010067187A1 WO 2010067187 A1 WO2010067187 A1 WO 2010067187A1 IB 2009007712 W IB2009007712 W IB 2009007712W WO 2010067187 A1 WO2010067187 A1 WO 2010067187A1
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WO
WIPO (PCT)
Prior art keywords
tank
liquid
distributor
gas
saturated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2009/007712
Other languages
Spanish (es)
French (fr)
Inventor
Jorge Enrique Forero Sanabria
Javier Diaz Sierra
Olga Patricia Ortiz Cancino
Jose Javier Duque Osorio
Fredy Abelardo NARIÑO REMOLINA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecopetrol SA
Original Assignee
Ecopetrol SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecopetrol SA filed Critical Ecopetrol SA
Publication of WO2010067187A1 publication Critical patent/WO2010067187A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2326—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle

Definitions

  • the system of the present invention comprises a primary device for generating bubbles that consists of a recirculation pump, a distributor coupled to a series of pipes in which, at regular intervals, there are venturi type devices for air or gas injection .
  • the system takes the fluid contained in the tank and recirculates it through the primary device, which takes gas from the atmosphere or from the internal gas chamber of the tank and incorporates it, by means of the injectors type, into the current of recirculated liquid.
  • the bubbled gas is reused by sending it to the venturi type injectors by means of flexible pipes connecting the low pressure system of the venturi with the gas chamber.
  • EP 692999 above teaches a fluidized bed reactor in which a liquid reacts with a gas in the presence of a catalyst.
  • the gas is bubbled through the liquid, which contains the catalyst, by means of a perforated plate in the base of the reactor.
  • Said plate is connected to a system of tubes attached to a compressor, which is responsible for forcing the gas through the fluidized bed.
  • the previous EP 829534 related to a fermentation system that employs a set of injectors or nozzles to provide air to a fermentation tank, said system also includes an oxygen spray system comprising 12 nozzles.
  • the two gas streams, both air and oxygen, must be injected under pressure into the culture broth to simultaneously provide an oxygen source and generate streams that help circulate the gases in the tank.
  • US 6,875,351 teaches a system for floating floating solids in a clarifier that makes use of a series of pumps and a vent to inject air into a stream of recirculated water from the clarifier. The air is injected to the side of the clarifier and flows parallel to the surface, with a very small contact area.
  • US Patent 5,173,184 teaches a flotation system comprising a series of tanks in which, by means of a perforated plate located at the bottom thereof, air is injected into the fluid to be treated for the purpose. of causing the flotation of suspended or agglomerated solids by means of a flocculant.
  • the bubbles can also be used as a mixing system as evidenced by US Patent 7,387,428, which discloses a process for mixing thick aqueous suspensions.
  • the gas is injected under pressure in The tank and the accumulator plate guarantees that the gas bubble has a specific shape and size.
  • currents are generated that circulate the suspension, resulting in a homogeneous mixture without using mechanical mixers.
  • the system of the invention comprises a contact tank between the gas phase and the liquid phase (1), a distributor of liquid to be treated (2) located in the lower half of the tank, a distributor of liquid saturated with gas (3) placed in the lower half of the tank and connected to a pump (4) to provide pressurized fluid, preferably by recirculating the fluid contained in the tank, a gas tank (5) submerged in the bottom of the tank containing gas from the chamber of Gas from the tank (6) and Io provides by means of a series of flexible tubes (7) to a series of injectors type (8) located on the liquid distributor (3).
  • the distributor of liquid to be treated (2) consists of an arrangement of perforated pipes (9), distributed uniformly with respect to the area of the cross section of the tank, to ensure a correct distribution of the liquid to be treated and a homogeneous contact with the bubbles coming from the distributor (3) in the lower part of the tank.
  • the gas tank (5) consists of a container located at the bottom of the tank (1), connected in its upper part to the chamber (6) by pipe (10) and in its lower part to the injectors (8) by tubes flexible (7).
  • a bubble saturated liquid distributor (11) can be coupled to each of the venturi-type injectors (8) to improve their distribution pattern through the liquid to be treated.
  • said distributor (11) comprises a perforated diffusion structure, which expands the flow pattern and increases the area of distribution of the bubbles.
  • FIG. 1 Top view of the liquid distributor to be treated in one of the embodiments of the invention, specifically in the form of fish bone.
  • FIG 3. Top view of the liquid distributor to be treated in another embodiment of the invention, specifically radially.
  • Figure 4. Top view of the distributor of liquid to be gasified and the injectors according to one of the embodiments of the invention, specifically in radial form.
  • FIG. 5 Detail of the injector type with the distributor of gasified liquid according to two of the embodiments of the invention.
  • the system illustrated in Figure 1 comprises a tank (1) which receives and contains the fluid to be treated.
  • Said tank (1) may have a capacity between 100 m 3 to 15,000 m 3 .
  • a distributor of liquid to be treated (2) consisting of an arrangement of perforated pipes (9), distributed uniformly with respect to the area of the cross section of the tank, to ensure a correct distribution of the liquid to be treated and a homogeneous contact with the bubbles coming from the distributor (3) in the lower part of the tank.
  • Said perforated pipes have a diameter that ranges between 2.54 cm and 50.8 cm, their perforations are distributed homogeneously along the pipe and have a diameter, according to the flow to be handled, which preferably fluctuates between 2 cm and 4 cm
  • the liquid distributor to be treated (2) generates a flow pattern that covers between 70 and 80% of the cross-sectional area of the tank.
  • the distributor pipe (2) has a radial shape, comprising more than two arms, preferably between 4 and 6 arms, as shown in Figure 3.
  • said pipe comprises a tube from which 4 to 6 side tubes are detached, known as fish bone, as shown in Figure 2.
  • the distributor of the liquid to be saturated (3) which comprises a main pipe system (12) with shunts (13) to which the injector type injectors (8) are coupled at regular intervals.
  • the main pipe (12) has a diameter that oscillates between 5 cm and 31 cm and its derivations have diameters that fluctuate between 2 cm and 15 cm.
  • the number of injectors (8) per branch is between 2 and 6.
  • the total number of injectors (8) in the tank varies between 8 and 36.
  • the used VENTURI injectors (8) have diameters ranging from 2 cm to 4 cm, depending on the flow conditions of each particular application.
  • the pressure inside the liquid distributor to be saturated (3) must be a maximum of 6 atmospheres.
  • the venturi injectors (8) are distributed along each branch (13) so that the pressure drop between the first and the last does not exceed 10% average pressure.
  • the liquid distributor to be saturated (3) generates a flow pattern that covers between 70% and 95% of the cross-sectional area of the tank.
  • the distributor pipe (3) has a radial shape, comprising more than two leads (13), preferably between 4 and 8 leads (13), as shown in Figure 4.
  • the tank (1) also comprises a gas tank (5) submerged in the bottom of the tank which contains gas from the gas chamber of the tank (6).
  • Said tank (5) is connected to each of the injector type injectors (8) by means of flexible pipe (7) located in the lower part thereof.
  • the tank (5) has a tube (10) that takes air from the chamber (6) located in the upper part of the tank.
  • the gas tank (5) consists of a container located at the bottom of the tank (1).
  • the container has a capacity such that it guarantees a gas supply to the VENTURI type injectors (8) for a period of 2 to 5 minutes, as well as stability in the pressure in each of the VENTURI type injectors (8).
  • the fluid pressure in the venturi type injectors (8) together with the gas pressure from the tank (5) is such that it ensures a formation of bubbles with a diameter of 200 ⁇ m to 300 ⁇ m and a density of 0.5 a 1x10 4 bubbles per cm 3 of saturated liquid. Consequently, the pressure in the distributor of liquid to be saturated with gas (3) must be between 101, 3 KPa and 1013 KPa, preferably between 202.6 KPa and 810.6 KPa, and even better between 405.3 KPa and 709 , 3 KPa.
  • the distributor of liquid to be saturated (3) is fed by a recirculation system that consists of a pipe (14) that takes liquid from the lower part of the tank. Said liquid is recirculated to the distributor (3) by means of a pump (4).
  • a bubble saturated liquid distributor (11) can be coupled to each of the venturi-type injectors (8) to improve their distribution pattern through the liquid to be treated.
  • said distributor (11) comprises a perforated diffusion structure, which expands the flow pattern and increases the area of distribution of the bubbles, as shown in Figure 5.
  • the tank (1) comprises a collecting system (15) which comprises one or more sockets located in the upper part of the tank, evenly distributed around it, preferably at the same level of the liquid, which converge in the part Internal bottom of the tank towards a single exit.
  • the system is used in a flotation process of solids dissolved in residual water.
  • the process is based on the injection of atmospheric air through the system of the present invention.
  • the gas-water contact is carried out by means of injection nozzles type ventauri.
  • the operation of the system consists in recirculating part of the water to be treated in the tank (1).
  • a vacuum is produced that induces the gas towards the outlet thereof, mixing it with the water in the form of microbubbles, this current can then be distributed by means of a diffuser (11) connected to the injector outlet (8).
  • the effect that is generated is the separation of colloidal contaminants such as suspended solids, greases and emulsified oils in the wastewater generated in the production, transport and refining of hydrocarbons. And as additional improvements, oxidation processes, increased dissolved oxygen and sour gas shedding are favored.
  • This system is very efficient due to the high increase in the interfacial area as a result of the generation of a high amount of microbubbles of average size between 150 ⁇ m and 250 ⁇ m.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)

Abstract

The system of the invention comprises a tank (1) where there is contact between the gaseous phase and the liquid phase, a device (2) for distributing liquid to be treated located in the lower half of the tank, a device (3) for distributing gas-saturated liquid placed in the lower half of the tank and connected to a pump (4) for providing pressurized fluid, preferably recirculating the fluid contained in the tank, a gas reservoir (5) immersed in the bottom of the tank, which contains gas originating from the gas chamber (6) of the tank and which provides said gas by means of a series of flexible tubes (7) to a series of venturi-type injectors (8) located on the device (3) for distributing liquid.

Description

SISTEMA DE GENERACIÓN DE BURBUJAS INMERSO EN UN TANQUE DE PROCESAMIENTO DE LÍQUIDOS. IMMERSE BUBBLE GENERATION SYSTEM IN A LIQUID PROCESSING TANK.

SECTOR TECNOLÓGICOTECHNOLOGICAL SECTOR

En el campo de los procesos de flotación, aireación y gasificación de líquidos se emplean diferentes equipos para generar burbujas con diferentes fines, entre estos equipos se encuentran placas porosas, placas perforadas, tubos perforados, sistemas de disolución de gases en líquidos para generación de burbujas por cambios de presión, entre otros.In the field of flotation, aeration and gasification of liquids processes different equipment is used to generate bubbles for different purposes, among these equipment are porous plates, perforated plates, perforated tubes, gas dissolution systems in liquids for bubble generation by pressure changes, among others.

El sistema de Ia presente invención comprende un dispositivo primario de generación de burbujas que consiste de una bomba de recirculación, un distribuidor acoplado a una serie de tuberías en las cuales, a intervalos regulares, se encuentran aparatos de tipo vénturi para inyección de aire o gas. El sistema toma el fluido contenido en el tanque y Io recircula a través del dispositivo primario, el cual toma gas proveniente de Ia atmósfera o de Ia cámara de gas interna del tanque y Io incorpora, por medio de los inyectores tipo vénturi, a Ia corriente de líquido recirculado. El gas burbujeado es reutilizado enviándolo a los inyectores tipo vénturi por medio tuberías flexibles que unen el sistema de baja presión de los vénturi con Ia cámara de gas.The system of the present invention comprises a primary device for generating bubbles that consists of a recirculation pump, a distributor coupled to a series of pipes in which, at regular intervals, there are venturi type devices for air or gas injection . The system takes the fluid contained in the tank and recirculates it through the primary device, which takes gas from the atmosphere or from the internal gas chamber of the tank and incorporates it, by means of the injectors type, into the current of recirculated liquid. The bubbled gas is reused by sending it to the venturi type injectors by means of flexible pipes connecting the low pressure system of the venturi with the gas chamber.

ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION

Existen varios procesos en los que se emplean gases en fluidos con diferentes fines tales como eliminar sólidos particulados, hacer reaccionar gases con fluidos o disolver gases en fluidos. La anterioridad EP 692999 enseña un reactor de lecho fluidizado en el que un líquido reacciona con un gas en presencia de un catalizador. En dicho reactor el gas es burbujeado a través del líquido, el cual contiene el catalizador, por medio de una placa perforada en Ia base del reactor. Dicha placa se encuentra conectada a un sistema de tubos unidos a un compresor, el cual se encarga de forzar el gas a través del lecho fluidizado.There are several processes in which gases are used in fluids for different purposes such as removing particulate solids, reacting gases with fluids or dissolving gases in fluids. EP 692999 above teaches a fluidized bed reactor in which a liquid reacts with a gas in the presence of a catalyst. In said reactor the gas is bubbled through the liquid, which contains the catalyst, by means of a perforated plate in the base of the reactor. Said plate is connected to a system of tubes attached to a compressor, which is responsible for forcing the gas through the fluidized bed.

Por su parte, Ia anterioridad EP 829534 relacionada con un sistema de fermentación que emplea un conjunto de inyectores o boquillas para proporcionar aire a un tanque de fermentación, dicho sistema también incluye un sistema de aspersión de oxígeno que comprende 12 boquillas. Las dos corrientes de gas, tanto aire como oxígeno, deben ser inyectadas a presión en el caldo de cultivo para proporcionar simultáneamente una fuente de oxígeno y generar corrientes que ayudan a circular los gases en el tanque.For its part, the previous EP 829534 related to a fermentation system that employs a set of injectors or nozzles to provide air to a fermentation tank, said system also includes an oxygen spray system comprising 12 nozzles. The two gas streams, both air and oxygen, must be injected under pressure into the culture broth to simultaneously provide an oxygen source and generate streams that help circulate the gases in the tank.

Un campo en el que se hace un uso extensivo de las burbujas de gas es el de el tratamiento de aguas residuales. La patente US 6.875.351 enseña un sistema para Ia flotación de sólidos suspendidos en un clarificador que hace uso de una serie de bombas y un vénturi para inyectar aire a una corriente de agua recirculada del clarificador. El aire es inyectado a un lado del clarificador y fluye de manera paralela a Ia superficie, con un área de contacto muy pequeña. A su vez, Ia patente US 5.173.184 enseña un sistema de flotación que comprende una serie de tanques en los cuales, mediante una placa perforada ubicada en el fondo de los mismos, se inyecta aire al fluido que se va a tratar con el fin de ocasionar Ia flotación de los sólidos suspendidos o aglomerados mediante un floculante.A field in which extensive use is made of gas bubbles is that of wastewater treatment. US 6,875,351 teaches a system for floating floating solids in a clarifier that makes use of a series of pumps and a vent to inject air into a stream of recirculated water from the clarifier. The air is injected to the side of the clarifier and flows parallel to the surface, with a very small contact area. In turn, US Patent 5,173,184 teaches a flotation system comprising a series of tanks in which, by means of a perforated plate located at the bottom thereof, air is injected into the fluid to be treated for the purpose. of causing the flotation of suspended or agglomerated solids by means of a flocculant.

Por último, las burbujas también pueden emplearse como un sistema de mezclado como Io evidencia Ia patente US 7.387.428, Ia cual divulga un proceso para Ia mezcla de suspensiones acuosas espesas. Para este proceso se tiene un tanque lleno de una suspensión y en el fondo del tanque se ubica un inyector de gas y una placa acumuladora. El gas es inyectado a presión en el tanque y Ia placa acumuladora garantiza que Ia burbuja de gas tenga una forma y tamaño específicos. A medida que Ia burbuja asciende se generan corrientes que hacen circular Ia suspensión, resultando en una mezcla homogénea sin necesidad de emplear mezcladores mecánicos.Finally, the bubbles can also be used as a mixing system as evidenced by US Patent 7,387,428, which discloses a process for mixing thick aqueous suspensions. For this process you have a tank full of a suspension and at the bottom of the tank there is a gas injector and an accumulator plate. The gas is injected under pressure in The tank and the accumulator plate guarantees that the gas bubble has a specific shape and size. As the bubble rises, currents are generated that circulate the suspension, resulting in a homogeneous mixture without using mechanical mixers.

Todos los sistemas del arte previo involucran el uso de gases presurizados o sistemas de presurización de gases, tales como bombas y compresores, para lograr Ia formación de burbujas. Además, tales sistemas emplean inyectores, placas perforadas o materiales porosos que no garantizan un tamaño de burbuja constante, así como tampoco un contacto íntimo entre el gas y el líquido a tratar. Por otro lado, tales sistemas requieren el diseño de tanques específicos para su funcionamiento.All prior art systems involve the use of pressurized gases or gas pressurization systems, such as pumps and compressors, to achieve bubble formation. In addition, such systems employ injectors, perforated plates or porous materials that do not guarantee a constant bubble size, nor an intimate contact between the gas and the liquid to be treated. On the other hand, such systems require the design of specific tanks for their operation.

Por Io tanto, persiste Ia necesidad de un sistema con un bajo consumo de energía, que garantice un tamaño de burbuja específico, que sea fácil de instalar en tanques ya existentes y que ofrezcan un contacto íntimo entre el gas y el fluido a tratar.Therefore, there is still a need for a system with low energy consumption, which guarantees a specific bubble size, that is easy to install in existing tanks and that offers intimate contact between the gas and the fluid to be treated.

RESUMEN DE LA INVENCIÓNSUMMARY OF THE INVENTION

El sistema de Ia invención comprende un tanque de contacto entre Ia fase gaseosa y Ia fase líquida (1), un distribuidor de líquido a tratar (2) ubicado en Ia mitad inferior del tanque, un distribuidor de líquido saturado con gas (3) colocado en Ia mitad inferior del tanque y conectado a una bomba (4) para proporcionar fluido a presión, preferiblemente recirculando el fluido contenido en el tanque, un depósito de gas (5) sumergido en el fondo del tanque que contiene gas proveniente de Ia cámara de gas del tanque (6) y Io proporciona por medio de una serie de tubos flexibles (7) a una serie de inyectores tipo vénturi (8) ubicados sobre el distribuidor de líquido (3). El distribuidor de líquido a tratar (2) consiste en un arreglo de tuberías perforadas (9), distribuidas uniformemente respecto al área de Ia sección transversal del tanque, para asegurar una correcta distribución del líquido a tratar y un contacto homogéneo con las burbujas provenientes del distribuidor (3) en Ia parte inferior del tanque.The system of the invention comprises a contact tank between the gas phase and the liquid phase (1), a distributor of liquid to be treated (2) located in the lower half of the tank, a distributor of liquid saturated with gas (3) placed in the lower half of the tank and connected to a pump (4) to provide pressurized fluid, preferably by recirculating the fluid contained in the tank, a gas tank (5) submerged in the bottom of the tank containing gas from the chamber of Gas from the tank (6) and Io provides by means of a series of flexible tubes (7) to a series of injectors type (8) located on the liquid distributor (3). The distributor of liquid to be treated (2) consists of an arrangement of perforated pipes (9), distributed uniformly with respect to the area of the cross section of the tank, to ensure a correct distribution of the liquid to be treated and a homogeneous contact with the bubbles coming from the distributor (3) in the lower part of the tank.

El depósito de gas (5) consiste en un contenedor ubicado en el fondo del tanque (1), conectado en su parte superior a Ia cámara (6) mediante tubería (10) y en su parte inferior a los inyectores (8) mediante tubos flexibles (7).The gas tank (5) consists of a container located at the bottom of the tank (1), connected in its upper part to the chamber (6) by pipe (10) and in its lower part to the injectors (8) by tubes flexible (7).

En una modalidad preferida, se puede acoplar un distribuidor de líquido saturado con burbujas (11) a cada uno de los inyectores tipo vénturi (8) para mejorar el patrón de distribución de las mismas a través del líquido a tratar. En una modalidad preferida dicho distribuidor (11) comprende una estructura de difusión perforada, Ia cual amplía el patrón de flujo e incrementa el área de distribución de las burbujas.In a preferred embodiment, a bubble saturated liquid distributor (11) can be coupled to each of the venturi-type injectors (8) to improve their distribution pattern through the liquid to be treated. In a preferred embodiment said distributor (11) comprises a perforated diffusion structure, which expands the flow pattern and increases the area of distribution of the bubbles.

DESCRIPCIÓN DE LAS FIGURASDESCRIPTION OF THE FIGURES

Figura 1. Esquema de los elementos que conforman el sistema de Ia invención.Figure 1. Scheme of the elements that make up the system of the invention.

Figura 2. Vista superior del distribuidor de líquido a tratar de una de las modalidades de Ia invención, específicamente en forma de espina de pescado.Figure 2. Top view of the liquid distributor to be treated in one of the embodiments of the invention, specifically in the form of fish bone.

Figura 3. Vista superior del distribuidor de líquido a tratar de otra de las modalidades de Ia invención, específicamente en forma radial. Figura 4. Vista superior del distribuidor de líquido a gasificar y los inyectores de acuerdo con una de las modalidades de Ia invención, específicamente en forma radial.Figure 3. Top view of the liquid distributor to be treated in another embodiment of the invention, specifically radially. Figure 4. Top view of the distributor of liquid to be gasified and the injectors according to one of the embodiments of the invention, specifically in radial form.

Figura 5. Detalle del inyector tipo vénturi con el distribuidor de líquido gasificado de acuerdo con dos de las modalidades de Ia invención.Figure 5. Detail of the injector type with the distributor of gasified liquid according to two of the embodiments of the invention.

DESCRIPCIÓN DETALLADA DE LA INVENCIÓNDETAILED DESCRIPTION OF THE INVENTION

El sistema ilustrado en Ia figura 1 comprende un tanque (1) el cual recibe y contiene el fluido que se va a tratar. Dicho tanque (1) puede tener una capacidad entre 100 m3 a 15.000 m3.The system illustrated in Figure 1 comprises a tank (1) which receives and contains the fluid to be treated. Said tank (1) may have a capacity between 100 m 3 to 15,000 m 3 .

En Ia mitad inferior del tanque se encuentra un distribuidor de líquido a tratar (2) que consiste en un arreglo de tuberías perforadas (9), distribuidas uniformemente respecto al área de Ia sección transversal del tanque, para asegurar una correcta distribución del líquido a tratar y un contacto homogéneo con las burbujas provenientes del distribuidor (3) en Ia parte inferior del tanque.In the lower half of the tank there is a distributor of liquid to be treated (2) consisting of an arrangement of perforated pipes (9), distributed uniformly with respect to the area of the cross section of the tank, to ensure a correct distribution of the liquid to be treated and a homogeneous contact with the bubbles coming from the distributor (3) in the lower part of the tank.

Dichas tuberías perforadas tienen un diámetro que oscila entre 2,54 cm y 50,8 cm, sus perforaciones se encuentran distribuidas homogéneamente a Io largo de Ia tubería y tienen un diámetro, de acuerdo al flujo a manejar, que preferiblemente fluctúa entre 2 cm y 4 cm.Said perforated pipes have a diameter that ranges between 2.54 cm and 50.8 cm, their perforations are distributed homogeneously along the pipe and have a diameter, according to the flow to be handled, which preferably fluctuates between 2 cm and 4 cm

El distribuidor de líquido a tratar (2) genera un patrón de flujo que cubre entre un 70 a un 80% del área de Ia sección transversal del tanque. En una modalidad preferida, Ia tubería del distribuidor (2) tiene forma radial, comprendiendo más de dos brazos, de preferencia entre 4 y 6 brazos, como se muestra en Ia figura 3. En otra alternativa, dicha tubería comprende un tubo central del cual se desprenden de 4 a 6 tubos laterales, forma conocida como espina de pescado, tal como se enseña en Ia figura 2.The liquid distributor to be treated (2) generates a flow pattern that covers between 70 and 80% of the cross-sectional area of the tank. In a preferred embodiment, the distributor pipe (2) has a radial shape, comprising more than two arms, preferably between 4 and 6 arms, as shown in Figure 3. In another alternative, said pipe comprises a tube from which 4 to 6 side tubes are detached, known as fish bone, as shown in Figure 2.

En Ia mitad inferior del tanque (1) se encuentra el distribuidor del líquido a saturar (3) que comprende un sistema de tubería principal (12) con derivaciones (13) a las cuales se acoplan inyectores tipo vénturi (8) a intervalos regulares.In the lower half of the tank (1) there is the distributor of the liquid to be saturated (3), which comprises a main pipe system (12) with shunts (13) to which the injector type injectors (8) are coupled at regular intervals.

La tubería principal (12) tienen un diámetro que oscila entre 5 cm y 31 cm y sus derivaciones tienen diámetros que fluctúan entre 2 cm y 15 cm. El número de inyectores (8) por derivación se encuentra entre 2 y 6. De manera preferida, el total de inyectores (8) en el tanque varía entre 8 y 36. Los inyectores vénturi (8) utilizados tienen diámetros que van de 2 cm a 4 cm, dependiendo de las condiciones de flujo de cada aplicación en particular.The main pipe (12) has a diameter that oscillates between 5 cm and 31 cm and its derivations have diameters that fluctuate between 2 cm and 15 cm. The number of injectors (8) per branch is between 2 and 6. Preferably, the total number of injectors (8) in the tank varies between 8 and 36. The used VENTURI injectors (8) have diameters ranging from 2 cm to 4 cm, depending on the flow conditions of each particular application.

La presión dentro del distribuidor de líquido a saturar (3) debe ser máxima de 6 atmósferas. Los inyectores vénturi (8) se distribuyen a Io largo de cada derivación (13) de manera que Ia caída de presión entre el primero y el último no excede el 10% de presión promedio.The pressure inside the liquid distributor to be saturated (3) must be a maximum of 6 atmospheres. The venturi injectors (8) are distributed along each branch (13) so that the pressure drop between the first and the last does not exceed 10% average pressure.

El distribuidor de líquido a saturar (3) genera un patrón de flujo que cubre entre un 70% a un 95 % del área de Ia sección transversal del tanque. En una modalidad preferida, Ia tubería del distribuidor (3) tiene forma radial, comprendiendo más de dos derivaciones (13), de preferencia entre 4 y 8 derivaciones (13), como se muestra en Ia figura 4.The liquid distributor to be saturated (3) generates a flow pattern that covers between 70% and 95% of the cross-sectional area of the tank. In a preferred embodiment, the distributor pipe (3) has a radial shape, comprising more than two leads (13), preferably between 4 and 8 leads (13), as shown in Figure 4.

El tanque (1) además comprende un depósito de gas (5) sumergido en el fondo del tanque el cual contiene gas proveniente de Ia cámara de gas del tanque (6). Dicho depósito (5) se encuentra conectado a cada uno de los inyectores de tipo vénturi (8) mediante tubería flexible (7) ubicada en Ia parte inferior del mismo. Además, el depósito (5) tiene un tubo (10) que toma aire de Ia cámara (6) ubicada en Ia parte superior del tanque.The tank (1) also comprises a gas tank (5) submerged in the bottom of the tank which contains gas from the gas chamber of the tank (6). Said tank (5) is connected to each of the injector type injectors (8) by means of flexible pipe (7) located in the lower part thereof. In addition, the tank (5) has a tube (10) that takes air from the chamber (6) located in the upper part of the tank.

El depósito de gas (5) consiste en un contenedor ubicado en el fondo del tanque (1). El contenedor tiene una capacidad tal que garantiza un suministro de gas a los inyectores tipo vénturi (8) por un periodo de 2 a 5 minutos, así como también estabilidad en Ia presión en cada uno de los inyectores tipo vénturi (8).The gas tank (5) consists of a container located at the bottom of the tank (1). The container has a capacity such that it guarantees a gas supply to the VENTURI type injectors (8) for a period of 2 to 5 minutes, as well as stability in the pressure in each of the VENTURI type injectors (8).

La presión del fluido en los inyectores tipo vénturi (8) en conjunto con Ia presión del gas proveniente del depósito (5) es tal que asegura una formación de burbujas con un diámetro de 200 μm a 300 μm y una densidad de 0,5 a 1x104 burbujas por cm3 de líquido saturada. En consecuencia, Ia presión en el distribuidor de líquido a saturar con gas (3) debe estar entre 101 ,3 KPa y 1013 KPa, preferiblemente entre 202,6 KPa y 810,6 KPa, y aún mejor entre 405,3 KPa y 709,3 KPa.The fluid pressure in the venturi type injectors (8) together with the gas pressure from the tank (5) is such that it ensures a formation of bubbles with a diameter of 200 μm to 300 μm and a density of 0.5 a 1x10 4 bubbles per cm 3 of saturated liquid. Consequently, the pressure in the distributor of liquid to be saturated with gas (3) must be between 101, 3 KPa and 1013 KPa, preferably between 202.6 KPa and 810.6 KPa, and even better between 405.3 KPa and 709 , 3 KPa.

El distribuidor de líquido a saturar (3) es alimentado por un sistema de recirculación que consiste de una tubería (14) que toma líquido de Ia parte inferior del tanque. Dicho líquido es recirculado al distribuidor (3) por medio de una bomba (4).The distributor of liquid to be saturated (3) is fed by a recirculation system that consists of a pipe (14) that takes liquid from the lower part of the tank. Said liquid is recirculated to the distributor (3) by means of a pump (4).

En una modalidad preferida, se puede acoplar un distribuidor de líquido saturado con burbujas (11) a cada uno de los inyectores tipo vénturi (8) para mejorar el patrón de distribución de las mismas a través del líquido a tratar. En una modalidad preferida dicho distribuidor (11) comprende una estructura de difusión perforada, Ia cual amplía el patrón de flujo e incrementa el área de distribución de las burbujas, tal como se muestra en Ia figura 5. En una modalidad, el tanque (1) comprende un sistema colector (15) el cual comprende una o más tomas ubicadas en Ia parte superior del tanque, distribuidas uniformemente alrededor del mismo, preferiblemente al mismo nivel del líquido, las cuales convergen en Ia parte inferior interna del tanque hacia una única salida.In a preferred embodiment, a bubble saturated liquid distributor (11) can be coupled to each of the venturi-type injectors (8) to improve their distribution pattern through the liquid to be treated. In a preferred embodiment said distributor (11) comprises a perforated diffusion structure, which expands the flow pattern and increases the area of distribution of the bubbles, as shown in Figure 5. In one embodiment, the tank (1) comprises a collecting system (15) which comprises one or more sockets located in the upper part of the tank, evenly distributed around it, preferably at the same level of the liquid, which converge in the part Internal bottom of the tank towards a single exit.

Ejemplo 1Example 1

El aparato antes descrito tiene diferentes aplicaciones. En una de las modalidades, el sistema es empleado en un proceso de flotación de sólidos disueltos en agua residuales. El proceso es basado en Ia inyección de aire atmosférico mediante el sistema de Ia presente invención. En este proceso, el contacto gas-agua se realiza mediante boquillas inyectoras tipo vénturi.The apparatus described above has different applications. In one of the modalities, the system is used in a flotation process of solids dissolved in residual water. The process is based on the injection of atmospheric air through the system of the present invention. In this process, the gas-water contact is carried out by means of injection nozzles type ventauri.

El funcionamiento del sistema consiste en recircular parte del agua por tratar en el tanque (1). Al producirse el cambio de velocidad dentro del vénturi (8), se produce un vacío que induce el gas hacia Ia salida del mismo, mezclándolo con el agua en forma de microburbujas, esta corriente puede entonces ser distribuida por medio de un difusor (11) conectado a Ia salida del inyector (8).The operation of the system consists in recirculating part of the water to be treated in the tank (1). When the change of speed occurs within the venturi (8), a vacuum is produced that induces the gas towards the outlet thereof, mixing it with the water in the form of microbubbles, this current can then be distributed by means of a diffuser (11) connected to the injector outlet (8).

El efecto que se genera es Ia separación de contaminantes coloidales como sólidos suspendidos, grasas y aceites emulsionados en las aguas residuales generadas en Ia producción, transporte y refinación de hidrocarburos. Y como mejoras adicionales se favorecen procesos de oxidación, incremento de oxigeno disuelto y despojo de gases agrios.The effect that is generated is the separation of colloidal contaminants such as suspended solids, greases and emulsified oils in the wastewater generated in the production, transport and refining of hydrocarbons. And as additional improvements, oxidation processes, increased dissolved oxygen and sour gas shedding are favored.

Este sistema es muy eficiente debido al alto incremento en el área interfacial como consecuencia de Ia generación de una alta cantidad de microburbujas de tamaño promedio entre 150 μm y 250 μm. This system is very efficient due to the high increase in the interfacial area as a result of the generation of a high amount of microbubbles of average size between 150 μm and 250 μm.

Claims

REIVINDICACIONES 1. Un sistema para Ia generación de burbujas inmerso en un tanque de procesamiento de líquidos, caracterizado porque comprende: a) un tanque (1); b) un distribuidor de líquido a tratar (2), ubicado en Ia mitad superior de dicho tanque (1); c) un distribuidor de liquido a saturar con gas (3) ubicado en Ia mitad inferior del tanque, donde dicho distribuidor comprende una serie de inyectores tipo vénturi (8); d) un depósito de gas (5) ubicado en el fondo del tanque; y e) una bomba (4).1. A system for generating bubbles immersed in a liquid processing tank, characterized in that it comprises: a) a tank (1); b) a liquid distributor to be treated (2), located in the upper half of said tank (1); c) a distributor of liquid to be saturated with gas (3) located in the lower half of the tank, where said distributor comprises a series of injectors type (8); d) a gas tank (5) located at the bottom of the tank; and e) a pump (4). 2. Un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque dicho tanque (1) tiene una capacidad de entre 100 m3 y 15000 m3.2. A system according to claim 1, characterized in that said tank (1) has a capacity of between 100 m 3 and 15000 m 3 . 3. Un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque dicho distribuidor de líquido a tratar (2) consiste en un arreglo de tuberías perforadas (9) distribuidas uniformemente respecto al área de Ia sección transversal del tanque.3. A system according to claim 1, characterized in that said liquid distributor to be treated (2) consists of an arrangement of perforated pipes (9) distributed uniformly with respect to the cross-sectional area of the tank. 4. Un sistema de acuerdo con Ia reivindicación 3, caracterizado porque dichas tuberías perforadas (9) tienen un diámetro de entre 2,54 cm y 50,8 cm.4. A system according to claim 3, characterized in that said perforated pipes (9) have a diameter of between 2.54 cm and 50.8 cm. 5. Un sistema de acuerdo con Ia reivindicación 3, caracterizado porque dichas tuberías perforadas (9) tienen perforaciones distribuidas homogéneamente a todo Io largo.5. A system according to claim 3, characterized in that said perforated pipes (9) have perforations homogeneously distributed along the entire length. 6. Un sistema de acuerdo con Ia reivindicación 5, caracterizado porque dichas perforaciones tienen entre 2 cm y 4 cm de diámetro. 6. A system according to claim 5, characterized in that said perforations are between 2 cm and 4 cm in diameter. 7. Un sistema de acuerdo con cualquiera de las reivindicaciones 3 a 6, caracterizado porque dicho distribuidor (2) tiene un arreglo radial que comprende más de 2 brazos.7. A system according to any of claims 3 to 6, characterized in that said distributor (2) has a radial arrangement comprising more than 2 arms. 8. Un sistema de acuerdo con Ia reivindicación 7, caracterizado porque dicho distribuidor (2) comprende entre 4 y 6 brazos.8. A system according to claim 7, characterized in that said distributor (2) comprises between 4 and 6 arms. 9. Un sistema de acuerdo con Ia cualquiera de las reivindicaciones 3 a 6, caracterizado porque dicho distribuidor (2) tienen un arreglo que consiste en un tubo central del cual se desprenden al menos 2 tubos de manera perpendicular al mismo.9. A system according to any one of claims 3 to 6, characterized in that said distributor (2) has an arrangement consisting of a central tube from which at least 2 tubes are detached perpendicularly thereto. 10. Un sistema de acuerdo con Ia reivindicación 9, caracterizado porque dicho distribuidor comprende de 4 a 6 tubos.10. A system according to claim 9, characterized in that said distributor comprises 4 to 6 tubes. 11. Un sistema de acuerdo con cualquiera de las reivindicaciones 3 a 10, caracterizado porque el distribuidor (2) genera un patrón de flujo que cubre entre el 70% y el 80% del área de Ia sección transversal del tanque.11. A system according to any of claims 3 to 10, characterized in that the distributor (2) generates a flow pattern that covers between 70% and 80% of the cross-sectional area of the tank. 12. Un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque el distribuidor de líquido a saturar con gas (3) comprende una tubería central (12) con derivaciones (13) que parten del extremo de dicha tubería central (12) de manera radial e inyectores vénturi (8) que se distribuyen a Io largo de cada derivación (13).12. A system according to claim 1, characterized in that the distributor of liquid to be saturated with gas (3) comprises a central pipe (12) with shunts (13) starting from the end of said central pipe (12) radially and Ventauri injectors (8) that are distributed along each branch (13). 13. Un sistema de acuerdo con Ia reivindicación 12, caracterizado porque dicha tubería central (12) tiene un diámetro entre 5 cm y 31 cm. 13. A system according to claim 12, characterized in that said central pipe (12) has a diameter between 5 cm and 31 cm. 14. Un sistema de acuerdo con Ia reivindicación 12, caracterizado porque las derivaciones (13) tienen un diámetro entre 2 cm y 15 cm.14. A system according to claim 12, characterized in that the leads (13) have a diameter between 2 cm and 15 cm. 15. Un sistema de acuerdo con Ia reivindicación 12, caracterizado porque dicha tubería central (12) comprende entre 4 y 8 derivaciones (13).15. A system according to claim 12, characterized in that said central pipe (12) comprises between 4 and 8 leads (13). 16. Un sistema de acuerdo con Ia reivindicación 12, caracterizado porque el número de inyectores tipo vénturi (8) acoplados a cada derivación (13) esta entre 2 y 6.16. A system according to claim 12, characterized in that the number of injectors type (8) coupled to each branch (13) is between 2 and 6. 17. Un sistema de acuerdo con Ia reivindicación 16, caracterizado porque dichos inyectores vénturi (8) tienen un diámetro entre 2 cm y 4 cm.17. A system according to claim 16, characterized in that said venturi injectors (8) have a diameter between 2 cm and 4 cm. 18. Un sistema de acuerdo con cualquiera de las reivindicaciones 12 a 17, caracterizado porque Ia presión en el distribuidor de líquido a saturar con gas (3) debe ser de entre 101 ,3 KPa y 1013 KPa.18. A system according to any of claims 12 to 17, characterized in that the pressure in the distributor of liquid to be saturated with gas (3) must be between 101, 3 KPa and 1013 KPa. 19. Un sistema de acuerdo con Ia reivindicación 18, caracterizado porque Ia presión en el distribuidor de líquido a saturar con gas (3) debe ser de entre 202,6 KPa y 810,6 KPa.19. A system according to claim 18, characterized in that the pressure in the distributor of liquid to be saturated with gas (3) must be between 202.6 KPa and 810.6 KPa. 20. Un sistema de acuerdo con Ia reivindicación 19, caracterizado porque Ia presión en el distribuidor de líquido a saturar con gas (3) debe ser de entre 405,3 KPa y 709,3 KPa.20. A system according to claim 19, characterized in that the pressure in the distributor of liquid to be saturated with gas (3) must be between 405.3 KPa and 709.3 KPa. 21. Un sistema de acuerdo con cualquiera de las reivindicaciones 12 a 20, caracterizado porque Ia caída de presión entre el primer inyector tipo vénturi (8) y el último inyector tipo vénturi (8) ubicado en al menos una de dichas derivaciones (13) no excede el 10% de Ia presión promedio en el distribuidor de líquido a saturar (3). 21. A system according to any of claims 12 to 20, characterized in that the pressure drop between the first injector type (8) and the last injector type (8) located in at least one of said leads (13) does not exceed 10% of the average pressure in the distributor of liquid to be saturated (3). 22. Un sistema de acuerdo con Ia reivindicación 21, caracterizado porque el distribuidor de líquido a saturar (3) genera un patrón de flujo que cubre entre el 70% y el 95% del área de Ia sección transversal del tanque.22. A system according to claim 21, characterized in that the liquid distributor to be saturated (3) generates a flow pattern that covers between 70% and 95% of the cross-sectional area of the tank. 23. Un sistema de acuerdo con Ia reivindicación 12, caracterizado porque cada uno de los distribuidores tipo vénturi (8) comprende un distribuidor de líquido saturado con burbujas (11) que mejora Ia distribución y el tamaño de las mismas.23. A system according to claim 12, characterized in that each of the vents type distributors (8) comprises a distributor of liquid saturated with bubbles (11) that improves the distribution and size thereof. 24. Un sistema de acuerdo con Ia reivindicación 23, caracterizado porque dicho distribuidor de líquido saturado con burbujas (11) comprende una estructura de difusión perforada que amplía el área de distribución de burbujas del inyector tipo vénturi (8).24. A system according to claim 23, characterized in that said bubble saturated liquid distributor (11) comprises a perforated diffusion structure that expands the bubble distribution area of the venturi type injector (8). 25. Un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque el depósito (5) se encuentra sumergido en el fondo del tanque (1) y contiene gas proveniente de Ia cámara de gas del tanque (6).25. A system according to claim 1, characterized in that the tank (5) is submerged in the bottom of the tank (1) and contains gas from the gas chamber of the tank (6). 26. Un sistema de acuerdo con Ia reivindicación 25, caracterizado porque dicho depósito (5) comprende además una tubería (10) que toma gas de Ia cámara de gas (6) del tanque (1).26. A system according to claim 25, characterized in that said tank (5) further comprises a pipe (10) that takes gas from the gas chamber (6) of the tank (1). 27. Un sistema de acuerdo con Ia reivindicación 25, caracterizado porque dicho depósito (5) se encuentra conectado a cada uno de dichos inyectores tipo vénturi (8) mediante tuberías flexibles (7) que salen de Ia parte inferior del mismo.27. A system according to claim 25, characterized in that said reservoir (5) is connected to each of said venturi type injectors (8) by means of flexible pipes (7) leaving the lower part thereof. 28. Un sistema de acuerdo con Ia reivindicación 27, caracterizado porque el depósito (5) tienen una capacidad tal que garantiza un suministro de gas a los inyectores tipo vénturi (8) por un periodo de 2 minutos a 5 minutos, así como también estabilidad en Ia presión del gas suministrado a dichos inyectores tipo vénturi (8).28. A system according to claim 27, characterized in that the tank (5) has a capacity that guarantees a gas supply to the venturi type injectors (8) for a period of 2 minutes to 5 minutes, as well as stability in the pressure of the gas supplied to said venturi injectors (8). 29. Un sistema de acuerdo con cualquiera de las reivindicaciones precedentes, caracterizado porque Ia presión de fluido en los inyectores tipo vénturi (8) junto con Ia presión del gas proveniente del depósito (5) permite Ia formación de microburbujas con un diámetro de 200 μm a 300 μm.29. A system according to any of the preceding claims, characterized in that the fluid pressure in the venturi type injectors (8) together with the gas pressure from the tank (5) allows the formation of microbubbles with a diameter of 200 μm at 300 μm. 30. Un sistema de acuerdo con Ia reivindicación 29, caracterizado porque Ia densidad de burbujas en Ia corriente de agua saturada que sale de los distribuidores de líquido saturado con burbujas (11) es 0,5 a 1x104 burbujas por cm3 de líquido.30. A system according to claim 29, characterized in that the density of bubbles in the stream of saturated water leaving the distributors of liquid saturated with bubbles (11) is 0.5 to 1x10 4 bubbles per cm 3 of liquid. 31. un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque dicha bomba (4) esta unida a un sistema de recirculación de fluido el cual toma dicho fluido de Ia parte inferior del tanque (1) y Io recircula a través del distribuidor de líquido a saturar (3).31. A system according to claim 1, characterized in that said pump (4) is connected to a fluid recirculation system which takes said fluid from the lower part of the tank (1) and recirculates it through the liquid distributor to saturate (3). 32. Un sistema de acuerdo con Ia reivindicación 1 , caracterizado porque comprende además un sistema colector (15) que consiste en una o más tomas ubicadas a altura de Ia superficie del líquido a tratar.32. A system according to claim 1, characterized in that it further comprises a collecting system (15) consisting of one or more intakes located at the height of the surface of the liquid to be treated. 33. Un sistema de acuerdo con Ia reivindicación 32, caracterizado porque dicho sistema colector se encuentra dispuesto en el interior del tanque (1) y comprende además tuberías que descienden a Io largo de las paredes de dicho tanque (1), convergiendo en el fondo. 33. A system according to claim 32, characterized in that said collecting system is disposed inside the tank (1) and further comprises pipes that descend along the walls of said tank (1), converging at the bottom .
PCT/IB2009/007712 2008-12-12 2009-12-03 Bubble-generation system immersed in a liquid-processing tank Ceased WO2010067187A1 (en)

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CO08-132106 2008-12-12
CO08132106A CO6170068A1 (en) 2008-12-12 2008-12-12 IMMERSE BUBBLE GENERATION SYSTEM IN LIQUID PROCESSING TANK

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Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953003A (en) * 1974-06-06 1976-04-27 Aluterv Aluminiumipari Tervezo Vallalat Tank provided with pneumatic mixing pipe
US5009508A (en) * 1990-03-26 1991-04-23 Wojdylo Henry K Apparatus for mixing concrete
EP0490298A1 (en) * 1990-12-14 1992-06-17 Mitsubishi Jukogyo Kabushiki Kaisha Wet-type exhaust gas desulfurization system having a means for supplying air
US5266216A (en) * 1993-03-12 1993-11-30 Agueda Stephen R Water purification apparatus and process utilizing ozone
US5676716A (en) * 1995-10-30 1997-10-14 The Babcock & Wilcox Company Apparatus for mixing a tank and improving air/liquid contact in an oxidized system
US20030205135A1 (en) * 2002-05-02 2003-11-06 Mcnulty Peter Drummond System and method of water treatment
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US7387428B1 (en) * 2007-03-21 2008-06-17 Browne James O Method for mixing slurry

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PE20120381A1 (en) 2012-05-17

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