WO2014027122A1 - Water treatment system and method - Google Patents
Water treatment system and method Download PDFInfo
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- WO2014027122A1 WO2014027122A1 PCT/ES2012/070627 ES2012070627W WO2014027122A1 WO 2014027122 A1 WO2014027122 A1 WO 2014027122A1 ES 2012070627 W ES2012070627 W ES 2012070627W WO 2014027122 A1 WO2014027122 A1 WO 2014027122A1
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Definitions
- the present invention is framed in the field of water treatments.
- the object of the invention consists in a method of wastewater treatment based on a low pressure and membrane passage system.
- a commonly used treatment includes reverse osmosis treatment. Fluid flows resulting from reverse osmosis desalination plants are not usually recovered and are often discarded by taking them to the sewer system.
- primary dehydration is generally achieved by sedimentation, filtration, flotation, among others, while secondary dehydration is used to further increase the solids content and reduce the water content.
- the separation techniques have been improved by the use of polymeric materials that facilitate the solids concentration process (coagulation-flocculation).
- coagulation-flocculation coagulation-flocculation
- sludge dehydration has become an essential part of sewage treatment and the improvement of sludge dehydration can lead to increased savings, especially with regard to the costs associated with sludge transport of being eliminated.
- the membrane elements can then be used as bioreactors as described in US201 1 / 0263009A1.
- a membrane-bioreactor is a modification of the conventional process, where the traditional secondary clarifier is replaced and the activated sludge is concentrated in a bioreactor that is connected to a membrane crossflow ultrafiltration unit for the separation of treated water from the mixed solution (Scholz and Fuchs 2000).
- the effluent quality depends on the operating condition in the sedimentation tank and the characteristics of sludge sedimentation.
- the amount of sludge that can be maintained in a conventional treatment plant is limited due to the sedimentation capacity of poor sludge in a high concentration. Therefore, different secondary clarification processes need to be applied in order to achieve improved sludge retention.
- the combination of conventional biological process with the ultrafiltrate process [UF] has recently been adapted to maximize process efficiency.
- Ultrafiltration has also been considered as a pre-treatment system to reverse osmosis feeding (Wilf and Schierach 2001). Recently submerged ultrafiltration membranes have been developed in conjunction with chemical precipitation or lime softening that can be used to treat reverse osmosis feeding (Aguinaldo 2009).
- the object of the invention allows a better use of the water treatment processes since its application allows to obtain water from the fluid flows or fluid / solid mixtures resulting from water treatments.
- both the system and the method described here cover at least two possible aspects related to the problem described above, on the one hand the use of recycled or reused elements is proposed and on the other hand the optimization of water treatment systems through recovery of clarified water.
- the person skilled in the art will appreciate that the described method is applied to a system that has been subject to the insertion of the recycled elements mentioned above.
- the method of the invention is based on the sedimentation of the fluid flows that come from water treatment plants, which becomes a treatment that allows a reconditioning of the condensation of the fluid resulting in a thickening of said flow rates. Said treatment, in turn, achieves the result of obtaining water extracted from the flow from the water treatment plant.
- Figure 1 Shows a scheme of an application of the method object of the invention where the different elements used and their relationship between them can be seen.
- the system (1) for water treatment described herein is based on the use of a tank (2) connected to at least one effluent from at least a part of at least one water treatment plant. waters; destined to collect all the effluents that leave each of the parts or plants.
- said tank (2) there is at least one filter module (3) located in a low pressure vessel comprising at least one filter element, which may be a submerged filter element or a pressurized ultrafiltrate element intended to receive and treat said effluent and concentrate residual sludge.
- the filtering module (3) is equipped with one or more fluid treatment or filtering elements based on: pretreatment, filtering by osmosis, filtering by reverse osmosis, post treatment, counter current filtering, chemically enhanced counter current filtering, aeration or in-situ cleaning.
- the system (1) is completed with a solids recovery equipment connected to the filtering module (3) designed to manage solid particles from the filtering module 5 (3).
- At least one outflow or effluent flow is collected from the tank (2) from either at least a part of a water treatment plant or a water treatment plant. water treatment.
- the effluent from at least a part of at least one water treatment plant comprises at least one flow from a water treatment selected from the group5 consisting of: sand filtration, osmosis filtration, DAF filtration, filtration by osmosis, filtered by reverse osmosis, filtered by ultrafiltration, filtered by membrane, floated with chemical stage and comprises at least water and other materials, said other materials may be solid or liquid, but are mixed together with the or water in said effluent in such a way that they make up a single flow.
- a water treatment selected from the group5 consisting of: sand filtration, osmosis filtration, DAF filtration, filtration by osmosis, filtered by reverse osmosis, filtered by ultrafiltration, filtered by membrane, floated with chemical stage and comprises at least water and other materials, said other materials may be solid or liquid, but are mixed together with the or water in said effluent in such a way that they make up a single flow.
- All said effluent, components and flows are collected in the tank (2) where all the effluents from both the different parts of the water treatment plant, and from the treatment plant 5 itself (this is output) common of said plant through an exit channel) or several water treatment plants. With this it is achieved that in said tank (2) a content corresponding to a mixed solution composed of different fluids comprising waste from water treatments is generated.
- the content of the tank (2) is treated by at least one filter module (3) to condition it by the filter module (3) which comprises at least one element of filtering which can be submerged filtering or pressurized ultrafiltration.
- Said content of the tank (2) is treated in the tank itself (2) preferably by means of a filtering module (3) which has an ultrafiltration system using pressurized or submerged modules equipped with filtering equipment that can be chosen from counter-current filtering. , aeration, countercurrent filtering with the intervention of chemical agents or in-situ cleaning.
- Said treatment is carried out to condition the content by processing it to separate water from waste. Once separated the waste is sent to a waste management module while the filtered water is recirculated and / or made to reach the water treatment plant
Abstract
The invention relates to a system and a method for thickening and dehydrating streams of waste, wherein said method may be used with any waste water, pre-treatment or post-treatment water or osmosis desalination plant, or with any other effluents that may be recovered during the process, using a low pressure membrane system comprising the following units: a buffer tank where all the streams are collected and mixed, a low pressure vessel with membrane modules and reused/recycled elements, solids recovery equipment, and the corresponding pipelines to return the treated effluent to the plant.
Description
SISTEMA Y MÉTODO DE TRATAMIENTO DE AGUAS WATER TREATMENT SYSTEM AND METHOD
D E S C R I P C I Ó N OBJETO DE LA INVENCIÓN D E S C R I P C I O N OBJECT OF THE INVENTION
La presente invención se enmarca en el campo de los tratamientos de aguas. El objeto de la invención consiste en un método de tratamiento de aguas residuales basado en un sistema de baja presión y paso por membrana. The present invention is framed in the field of water treatments. The object of the invention consists in a method of wastewater treatment based on a low pressure and membrane passage system.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Actualmente para tratar el agua de mar, agua salobre, salmuera u otras formas de aguas residuales se utilizan varias tecnologías de tratamiento de agua. Un tratamiento comúnmente utilizado incluye el tratamiento mediante osmosis inversa. Los flujos de fluidos resultantes de las plantas de desalinización por osmosis inversa no suelen ser recuperados y a menudo se desechan llevándolos al sistema de alcantarillado. Various water treatment technologies are used to treat seawater, brackish water, brine or other forms of wastewater. A commonly used treatment includes reverse osmosis treatment. Fluid flows resulting from reverse osmosis desalination plants are not usually recovered and are often discarded by taking them to the sewer system.
A día de hoy son conocidas las técnicas de eliminación de residuos en agua basadas en: Today, waste disposal techniques in water based on:
- Retrolavado o lavado contracorriente mejorado químicamente, conocido por sus siglas en inglés [CEB] es un término establecido para un método de limpieza de los módulos de micro y ultrafiltración donde un agente de limpieza química se añade al flujo de lavado a contracorriente. Esa solución de limpieza permanece en el módulo de membrana durante un
corto período de tiempo, dicho agente de limpieza se descarga junto con la suciedad de la cara del filtro mediante un lavado final. - Chemically enhanced backwash or backwash, known by its acronym in English [CEB] is an established term for a method of cleaning micro and ultrafiltration modules where a chemical cleaning agent is added to the backwash wash flow. That cleaning solution remains in the membrane module for a For a short period of time, said cleaning agent is discharged along with the dirt from the face of the filter by a final wash.
- Limpieza in-situ/cleaning in place [CIP], común para todos los tipos de equipos de proceso. Contrariamente a CEB el flujo de solución de limpieza se lleva a cabo a través de la superficie de la membrana y permite el uso de temperaturas elevadas y los agentes de limpieza especiales. - In-situ cleaning / cleaning in place [CIP], common for all types of process equipment. Contrary to CEB, the flow of cleaning solution is carried out through the membrane surface and allows the use of high temperatures and special cleaning agents.
- Filtración dead-end o de Callejón sin salida, en la que todo el líquido pasa a través de la membrana, y todas las partículas mayores que el tamaño de los poros de la membrana son retenidas en su superficie. Las partículas atrapadas forman una lámina en la superficie de la membrana, que tiene un impacto sobre la eficiencia del proceso de filtración. En la actualidad, la alta salinidad de corrientes de descarga procedentes de plantas desalinizadoras plantea problemas significativos, y se considera que es un gran impedimento para la aplicación de las tecnologías de desalinización. Los procesos que involucran la actividad en torno a un teórico valor de cero descarga de líquido (ZLD) han sido recientemente desarrolladas y se encuentran en pleno auge. Estas tecnologías permiten la recuperación de agua y reducir los subproductos de la desalinización a las sales de sólidos o lodos (Patentes (US201 1/0180479 201 1 ) y (US201 1/0131994A1 201 1 )). Sin embargo, las tecnologías de ZLD dependen en gran medida de unidades térmicas caras y consumen mucha energía, como la salmuera, concentradores y cristalizadores, o incluso de la tierra intensivos los estanques de evaporación, que no son ni económica ni ambientalmente sostenible. - Dead-end or dead-end filtration, in which all the liquid passes through the membrane, and all particles larger than the size of the membrane pores are retained on their surface. The trapped particles form a sheet on the surface of the membrane, which has an impact on the efficiency of the filtration process. At present, the high salinity of discharge streams from desalination plants poses significant problems, and is considered to be a major impediment to the application of desalination technologies. The processes that involve the activity around a theoretical value of zero liquid discharge (ZLD) have been recently developed and are booming. These technologies allow the recovery of water and reduce by-products of desalination to salts of solids or sludge (Patents (US201 1/180479 201 1) and (US201 1 / 0131994A1 201 1)). However, ZLD technologies rely heavily on expensive thermal units and consume a lot of energy, such as brine, concentrators and crystallizers, or even intensive evaporation ponds, which are neither economically nor environmentally sustainable.
En cuanto a suspensiones, a lo largo del desarrollo tecnológico de sistemas de tratamiento de agua, ha habido algunos métodos patentados
para el espesamiento de lodos y deshidratación, tales como las patentes (4.082.671 1978), (1981 4259185), (1983 4404099) y, que implican la filtración en algunos de los casos, de flotación en los demás, pero sobre todo los métodos mecánicos o físicos. Incluso para soluciones de salmuera pesados, hay invenciones espesantes (1982 4336146), siendo además los productos químicos las técnicas más utilizadas en este caso, como lo es en (5720887 1998) y (US6413433B1 2002). As for suspensions, throughout the technological development of water treatment systems, there have been some patented methods for sludge thickening and dehydration, such as patents (4,082,671 1978), (1981 4259185), (1983 4404099) and, which involve filtration in some of the cases, of flotation in others, but especially mechanical or physical methods Even for heavy brine solutions, there are thickened inventions (1982 4336146), with chemicals also being the most used techniques in this case, as it is in (5720887 1998) and (US6413433B1 2002).
En general, la deshidratación primaria se logra generalmente mediante sedimentación, filtrado, flotación, entre otros, mientras que la deshidratación secundaria se emplea para aumentar aún más el contenido de sólidos y reducir el contenido de agua. Las técnicas de separación han sido mejoradas por el uso de materiales poliméricos que facilitan el proceso de concentración de sólidos (coagulación-floculación). En cualquier caso, la deshidratación de lodos se ha convertido en una parte esencial de los tratamientos de aguas residuales ya la mejora de la deshidratación de lodos puede conducir a un aumento del ahorro, especialmente con respecto a los costos asociados con el transporte de los lodos de ser eliminados. Cuando se añade la actividad biológica, los elementos de membrana se pueden utilizar entonces como biorreactores tal y como aparece descrito en US201 1/0263009A1 . Una membrana-biorreactor (MBR) es una modificación del proceso convencional, donde se sustituye el clarificador secundario tradicional y el lodo activado se concentra en un biorreactor que está conectado a una unidad de ultrafiltración de flujo cruzado de membrana para la separación del agua tratada desde la solución mixta (Scholz y Fuchs 2000). In general, primary dehydration is generally achieved by sedimentation, filtration, flotation, among others, while secondary dehydration is used to further increase the solids content and reduce the water content. The separation techniques have been improved by the use of polymeric materials that facilitate the solids concentration process (coagulation-flocculation). In any case, sludge dehydration has become an essential part of sewage treatment and the improvement of sludge dehydration can lead to increased savings, especially with regard to the costs associated with sludge transport of being eliminated. When biological activity is added, the membrane elements can then be used as bioreactors as described in US201 1 / 0263009A1. A membrane-bioreactor (MBR) is a modification of the conventional process, where the traditional secondary clarifier is replaced and the activated sludge is concentrated in a bioreactor that is connected to a membrane crossflow ultrafiltration unit for the separation of treated water from the mixed solution (Scholz and Fuchs 2000).
En general, la calidad del efluente depende de la condición de funcionamiento en el tanque de sedimentación y las características de
sedimentación de lodos. Sin embargo, la cantidad de lodo que puede mantenerse en una planta de tratamiento convencional es limitada debido a la capacidad de sedimentación de los fangos pobres en una concentración alta. Por lo tanto, diferentes procesos de clarificación secundaria necesitan ser aplicados a fin de lograr una retención de lodos mejorada. Recientemente, muchos estudios se han llevado a cabo para resolver los problemas de sedimentación que utilizan la tecnología de membranas, la combinación de proceso biológico convencional con el proceso de ultrafiltrado [UF] ha sido recientemente adaptada para maximizar la eficiencia del proceso. In general, the effluent quality depends on the operating condition in the sedimentation tank and the characteristics of sludge sedimentation. However, the amount of sludge that can be maintained in a conventional treatment plant is limited due to the sedimentation capacity of poor sludge in a high concentration. Therefore, different secondary clarification processes need to be applied in order to achieve improved sludge retention. Recently, many studies have been carried out to solve the sedimentation problems that use membrane technology, the combination of conventional biological process with the ultrafiltrate process [UF] has recently been adapted to maximize process efficiency.
La ultrafiltración también ha sido considerada como un sistema de pre-tratamiento para revertir la alimentación de osmosis (Wilf y Schierach 2001 ). Recientemente se han desarrollado membranas de ultrafiltración sumergidas en conjunto con precipitación química o ablandamiento de cal que se puede utilizar para tratar la alimentación de osmosis inversa (Aguinaldo 2009). Ultrafiltration has also been considered as a pre-treatment system to reverse osmosis feeding (Wilf and Schierach 2001). Recently submerged ultrafiltration membranes have been developed in conjunction with chemical precipitation or lime softening that can be used to treat reverse osmosis feeding (Aguinaldo 2009).
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
El objeto de la invención permite un mejor aprovechamiento de los procesos de tratamientos de aguas ya que su aplicación permite obtener agua de los flujos de fluidos o mezclas de fluido/sólido resultantes de tratamientos de aguas. The object of the invention allows a better use of the water treatment processes since its application allows to obtain water from the fluid flows or fluid / solid mixtures resulting from water treatments.
Dicho aprovechamiento pasa por llevar a cabo una extracción del agua de los lodos sin que se haga necesaria deshidratación alguna ni temperaturas elevadas con los consiguientes costes energéticos e impacto ambiental.
Para ello tanto el sistema como el método aquí descritos abarcan al menos dos posibles aspectos relacionados con el problema anteriormente expuesto, por una parte se propone el uso de elementos reciclados o reutilizados y por otra parte la optimización de sistemas de tratamientos de aguas mediante la recuperación de agua clarificada. A la vista de ambos aspectos el experto en la materia apreciará que el método descrito se aplica a un sistema que ha sido objeto de la inserción de los elementos reciclados anteriormente citados. El método de la invención se basa en la sedimentación de los flujos de fluidos que provienen de plantas de tratamiento de aguas, lo que viene a ser un tratamiento que permite un reacondicionamiento de la condensación del fluido resultando en un espesamiento de dichos caudales. Dicho tratamiento consigue a su vez como resultado del mismo la obtención de agua extraída del flujo procedente de la planta de tratamiento de aguas. This use is to carry out an extraction of water from the sludge without any dehydration or high temperatures with the consequent energy costs and environmental impact. For this, both the system and the method described here cover at least two possible aspects related to the problem described above, on the one hand the use of recycled or reused elements is proposed and on the other hand the optimization of water treatment systems through recovery of clarified water. In view of both aspects, the person skilled in the art will appreciate that the described method is applied to a system that has been subject to the insertion of the recycled elements mentioned above. The method of the invention is based on the sedimentation of the fluid flows that come from water treatment plants, which becomes a treatment that allows a reconditioning of the condensation of the fluid resulting in a thickening of said flow rates. Said treatment, in turn, achieves the result of obtaining water extracted from the flow from the water treatment plant.
Para lograr dicho objetivo, se hace uso y reutilización de módulos de filtración sumergidos o presurizados, donde dichos módulos disponen de una serie de elementos de filtración; por lo cuales se hacen pasar los caudales, procedentes de distintas plantas o partes de plantas de tratamiento de aguas, recogidos en un tanque específicamente diseñado para tal fin. To achieve this objective, use is made and reuse of submerged or pressurized filtration modules, where said modules have a series of filtration elements; whereby the flows are passed, coming from different plants or parts of water treatment plants, collected in a tank specifically designed for this purpose.
Es en dicho tanque donde se produce un tratamiento basado en filtración o ultrafiltracion para obtener agua depurada, también denominada clarificada en algunas terminologías del campo técnico, a partir de los citados flujos y caudales procedentes de la/s planta/s de tratamiento.
DESCRIPCIÓN DE LOS DIBUJOS It is in said tank where a treatment based on filtration or ultrafiltration is produced to obtain purified water, also called clarified in some terminologies of the technical field, from the aforementioned flows and flows from the treatment plant (s). DESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: Figura 1 .- Muestra un esquema de una aplicación del método objeto de la invención donde se aprecia los distintos elementos utilizados y su relación entre ellos. To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. Where illustrative and not limiting, the following has been represented: Figure 1 .- Shows a scheme of an application of the method object of the invention where the different elements used and their relationship between them can be seen.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las figuras se describe a continuación un modo de realización preferente del sistema (1 ) y método objeto de esta invención. In view of the figures, a preferred embodiment of the system (1) and method object of this invention is described below.
Tal y como aprecia en la figura 1 el sistema (1 ) para tratamiento de aguas aquí descrito se basa en la utilización de un tanque (2) conectado a al menos un efluente proveniente de al menos una parte de al menos una planta de tratamiento de aguas; destinado a recoger todos los efluentes que salen de cada una de las partes o plantas. En el citado tanque (2) se dispone al menos un módulo de filtrado (3) ubicado en un recipiente de baja de presión que comprende al menos un elemento de filtrado, que puede ser un elemento de filtrado sumergido o un elemento de ultrafiltrado, presurizado destinado a recibir y tratar dicho efluente y concentrar lodos residuales. Dado que el módulo de filtrado (3) se encuentra dotado de uno o varios de elementos de tratamiento o filtrado de fluidos basados en: pretratamiento, filtrado mediante osmosis, filtrado mediante osmosis inversa, post
tratamiento, filtrado contracorriente, filtrado contracorriente mejorado químicamente, aireación o limpieza in-situ. El sistema (1 ) se completa con un equipo de recuperación de sólidos conectado al módulo de filtrado (3) destinado a gestionar partículas sólidas procedentes del módulo de filtrado 5 (3). As shown in Figure 1, the system (1) for water treatment described herein is based on the use of a tank (2) connected to at least one effluent from at least a part of at least one water treatment plant. waters; destined to collect all the effluents that leave each of the parts or plants. In said tank (2) there is at least one filter module (3) located in a low pressure vessel comprising at least one filter element, which may be a submerged filter element or a pressurized ultrafiltrate element intended to receive and treat said effluent and concentrate residual sludge. Since the filtering module (3) is equipped with one or more fluid treatment or filtering elements based on: pretreatment, filtering by osmosis, filtering by reverse osmosis, post treatment, counter current filtering, chemically enhanced counter current filtering, aeration or in-situ cleaning. The system (1) is completed with a solids recovery equipment connected to the filtering module (3) designed to manage solid particles from the filtering module 5 (3).
En una realización preferente del método objeto de la invención se procede a recoger en el tanque (2) al menos un flujo de salida o efluente procedente de o bien al menos un parte de una planta de tratamiento de o aguas o bien de una planta de tratamiento de aguas. In a preferred embodiment of the method object of the invention, at least one outflow or effluent flow is collected from the tank (2) from either at least a part of a water treatment plant or a water treatment plant. water treatment.
Dicho efluente el efluente proveniente de al menos una parte de al menos una planta de tratamiento de aguas comprende al menos un flujo procedente de un tratamiento de aguas seleccionado de entre el grupo5 consistente en: filtrado por arena, filtrado mediante osmosis, filtrado DAF, filtrado mediante osmosis, filtrado mediante osmosis inversa, filtrado mediante ultrafiltración, filtrado mediante membrana, fltrado con etapa química y comprende al menos agua y otras materias, dichas otras materias pueden ser sólidas o líquidas, pero se encuentran mezcladas junto con el o agua en el citado efluente de tal manera que conforman un solo flujo. Said effluent The effluent from at least a part of at least one water treatment plant comprises at least one flow from a water treatment selected from the group5 consisting of: sand filtration, osmosis filtration, DAF filtration, filtration by osmosis, filtered by reverse osmosis, filtered by ultrafiltration, filtered by membrane, floated with chemical stage and comprises at least water and other materials, said other materials may be solid or liquid, but are mixed together with the or water in said effluent in such a way that they make up a single flow.
Todos dichos efluente, componentes y flujos son recogidos en el tanque (2) donde se hacen llegar todos los efluentes procedentes tanto de las distintas partes de la planta de tratamiento de aguas, como de la planta 5 de tratamiento en sí (esto es de salida común de dicha planta a través de un canal de salida) o de varias plantas de tratamiento de aguas. Con ello se consigue que en dicho tanque (2) se genere un contenido correspondiente a una solución mixta compuesto por distintos fluidos que comprenden residuos procedentes de tratamientos de aguas. Una vez recogidos se procede a 0 almacenar al menos dicho efluente de salida en dicho tanque (2) generando
un contenido del tanque (2) que comprende al menos dicho efluente, el contenido del tanque (2) se trata mediante al menos un módulo de filtrado (3) para acondicionarlo mediante el módulo de filtrado (3) el cual comprende al menos un elemento de filtrado que puede ser de filtrado sumergido o de ultrafiltrado presurizado. All said effluent, components and flows are collected in the tank (2) where all the effluents from both the different parts of the water treatment plant, and from the treatment plant 5 itself (this is output) common of said plant through an exit channel) or several water treatment plants. With this it is achieved that in said tank (2) a content corresponding to a mixed solution composed of different fluids comprising waste from water treatments is generated. Once collected, proceed to store at least said effluent outlet in said tank (2) generating a content of the tank (2) comprising at least said effluent, the content of the tank (2) is treated by at least one filter module (3) to condition it by the filter module (3) which comprises at least one element of filtering which can be submerged filtering or pressurized ultrafiltration.
Dicho contenido del tanque (2) se trata en el propio tanque (2) preferentemente mediante un módulo de filtrado (3) que dispone de un sistema de ultrafiltrado utilizando módulos presurizados o sumergidos dotados de equipos de filtrado que pueden elegirse de entre filtrado a contracorriente, aireación, filtrado a contracorriente con intervención de agentes químicos o limpieza in-situ. Dicho tratamiento se realiza para acondicionar el contenido procesándolo para separar agua de residuos. Una vez separados se hace llegar los residuos a un módulo de gestión de residuos mientras que el agua filtrada se recircula y/o se hace lelgar a la planta de tratamiento de aguas
Said content of the tank (2) is treated in the tank itself (2) preferably by means of a filtering module (3) which has an ultrafiltration system using pressurized or submerged modules equipped with filtering equipment that can be chosen from counter-current filtering. , aeration, countercurrent filtering with the intervention of chemical agents or in-situ cleaning. Said treatment is carried out to condition the content by processing it to separate water from waste. Once separated the waste is sent to a waste management module while the filtered water is recirculated and / or made to reach the water treatment plant
Claims
1 . - Sistema (1 ) para tratamiento de aguas que comprende caracterizado porque comprende: one . - System (1) for water treatment comprising characterized in that it comprises:
- un tanque (2) conectado a al menos un efluente proveniente de al menos una parte de al menos una planta de tratamiento de aguas, donde dicho tanque (2) - a tank (2) connected to at least one effluent from at least a part of at least one water treatment plant, where said tank (2)
- un recipiente de baja presión que comprende a su vez al menos un módulo de filtrado (3) destinado a recibir dicho efluente y concentrar lodos residuales, y - a low pressure vessel comprising at least one filter module (3) intended to receive said effluent and concentrate residual sludge, and
- un equipo de recuperación de sólidos conectado al módulo de filtrado (3) destinado a gestionar partículas sólidas procedentes del módulo de filtrado (3). - a solid recovery equipment connected to the filtering module (3) intended to manage solid particles from the filtering module (3).
2. - Sistema (1 ) según reivindicación 1 caracterizado por que el módulo de filtrado (3) comprende al menos un elemento de filtrado seleccionado de entre: elemento de filtrado sumergido y elemento de ultrafiltrado presurizado. 2. - System (1) according to claim 1 characterized in that the filter module (3) comprises at least one filter element selected from: submerged filter element and pressurized ultrafiltrate element.
3. - Sistema (1 ) según reivindicación 2 caracterizado porque el módulo de filtrado (3) comprende al menos una unidad seleccionada de entre el grupo consistente en: pretratamiento, filtrado mediante osmosis, filtrado mediante osmosis inversa, post tratamiento, filtrado contracorriente, filtrado contracorriente mejorado químicamente, aireación y limpieza in-situ. 3. - System (1) according to claim 2 characterized in that the filtering module (3) comprises at least one unit selected from the group consisting of: pretreatment, filtering by osmosis, filtering by reverse osmosis, post treatment, filtering against current, filtering chemically enhanced counter current, aeration and in-situ cleaning.
4. - Método de tratamiento de aguas caracterizado porque comprende: 4. - Water treatment method characterized in that it comprises:
I. recoger en un tanque (2) al menos un efluente proveniente de al menos una parte de al menos una planta de tratamiento de
aguas, I. collect in a tank (2) at least one effluent from at least a part of at least one treatment plant waters,
almacenar al menos dicho efluente de salida en dicho tanque (2) generando un contenido del tanque (2) que comprende al menos dicho efluente, storing at least said outlet effluent in said tank (2) generating a content of the tank (2) comprising at least said effluent,
tratar el contenido del tanque (2) mediante al menos un módulo de filtrado (3) para acondicionarlo procesándolo para separar agua de residuos, treat the contents of the tank (2) by at least one filter module (3) to condition it by processing it to separate water from waste,
hacer llegar los residuos a un módulo de gestión de residuos resultante del paso III, y send the waste to a waste management module resulting from step III, and
hacer llegar el agua filtrada resultante del paso III a la planta de tratamiento de aguas send the filtered water resulting from step III to the water treatment plant
5.- Método según reivindicación 4 caracterizado por que el tratar el contenido del tanque (2) mediante al menos un módulo de filtrado (3) para acondicionarlo se lleva a cabo mediante al menos un módulo de filtrado el cual comprende al menos un elemento de filtrado seleccionado de entre: elemento de filtrado sumergido y elemento de ultrafiltrado presurizado. 5. Method according to claim 4 characterized in that treating the contents of the tank (2) by at least one filter module (3) to condition it is carried out by at least one filter module which comprises at least one element of filtering selected from: submerged filtering element and pressurized ultrafiltration element.
6.- Método según reivindicación 4 caracterizado porque el efluente proveniente de al menos una parte de al menos una planta de tratamiento de aguas comprende al menos un flujo procedente de un tratamiento de aguas seleccionado de entre el grupo consistente en: filtrado por arena, filtrado mediante osmosis, filtrado DAF, filtrado mediante osmosis, filtrado mediante osmosis inversa, filtrado mediante ultrafiltración, filtrado mediante membrana, filtrado con etapa química
6. Method according to claim 4 characterized in that the effluent from at least a part of at least one water treatment plant comprises at least one flow from a water treatment selected from the group consisting of: sand filtration, filtration by osmosis, DAF filtering, osmosis filtering, reverse osmosis filtering, ultrafiltration filtering, membrane filtering, chemical stage filtering
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| PCT/ES2012/070627 WO2014027122A1 (en) | 2012-08-16 | 2012-08-16 | Water treatment system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/ES2012/070627 WO2014027122A1 (en) | 2012-08-16 | 2012-08-16 | Water treatment system and method |
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| WO2014027122A8 (en) | 2014-04-17 |
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