ES2259257B1 - PROCEDURE FOR THE INTEGRAL TREATMENT OF PURINS. - Google Patents
PROCEDURE FOR THE INTEGRAL TREATMENT OF PURINS. Download PDFInfo
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- ES2259257B1 ES2259257B1 ES200401107A ES200401107A ES2259257B1 ES 2259257 B1 ES2259257 B1 ES 2259257B1 ES 200401107 A ES200401107 A ES 200401107A ES 200401107 A ES200401107 A ES 200401107A ES 2259257 B1 ES2259257 B1 ES 2259257B1
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- slurries
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 12
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 10
- 238000005345 coagulation Methods 0.000 claims abstract description 6
- 230000015271 coagulation Effects 0.000 claims abstract description 6
- 238000005189 flocculation Methods 0.000 claims abstract description 3
- 230000016615 flocculation Effects 0.000 claims abstract description 3
- 238000000265 homogenisation Methods 0.000 claims abstract description 3
- 238000010979 pH adjustment Methods 0.000 claims abstract 2
- 238000007873 sieving Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 20
- 238000005188 flotation Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- 239000012466 permeate Substances 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005276 aerator Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 239000003925 fat Substances 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
Procedimiento para el tratamiento integral de purines que consiste en la recepción (1) de los mismos efectuándose un primer tamizado (2) y un segundo tamizado de afino (3) con filtros separadores para, posteriormente, ser tratados con un tornillo (4) compactador y, a continuación, incorporarse en un depósito (5) de homogeneización, pudiendo posteriormente incorporarse en un pretratamiento (6) de coagulación dotado de etapas de coagulación (7), ajuste de pH (8) y floculación (9) o bien pasar a etapas de aeroflotación (10), ultrafiltración (11) y ósmosis inversa (12).Procedure for the integral treatment of slurries that consists in the reception (1) of the same being carried out a first sieving (2) and a second screening of refining (3) with separating filters to, later, be treated with a compactor screw (4) and then incorporated into a homogenization tank (5), and can subsequently be incorporated into a coagulation pretreatment (6) provided with coagulation stages (7), pH adjustment (8) and flocculation (9) or to be transferred to stages of aeroflotation (10), ultrafiltration (11) and reverse osmosis (12).
Description
Procedimiento para el tratamiento integral de purines.Procedure for the integral treatment of slurry
La presente memoria descriptiva se refiere a una solicitud de una Patente de Invención correspondiente a un procedimiento para el tratamiento integral de purines, cuya evidente finalidad estriba en conseguir que las aguas residuales se dirijan mediante una unidad de bombeo sumergida a un filtro separador de luz de malla y el agua pase a un segundo tamizado con una luz de malla apropiada, seguido de un tornillo compactador para deshidratar los sólidos procedentes de los filtros separadores.The present specification refers to a request for an Invention Patent corresponding to a procedure for the integral treatment of slurries, whose obvious purpose is to ensure that wastewater is direct through a submerged pumping unit to a filter mesh and water light separator pass to a second sieve with an appropriate mesh light, followed by a compactor screw for dehydrate solids from separator filters.
A continuación, se implantará una unidad de bombeo para alimentar directamente al depósito pulmón y desde este depósito se alimentará la planta de flotación.Next, a unit of pumping to feed directly to the lung reservoir and from this reservoir will feed the flotation plant.
Esta invención tiene su aplicación dentro de la industria dedicada al tratamiento integral de purines.This invention has its application within the industry dedicated to the integral treatment of slurry.
El solicitante desconoce la existencia en la actualidad de una invención que esté dotada de las características que se describen en la presente memoria.The applicant is unaware of the existence in the topicality of an invention that is endowed with the characteristics which are described herein.
El procedimiento para el tratamiento integral de purines que la invención propone logra que las aguas residuales se dirijan mediante una unidad de bombeo sumergida a un filtro de luz de malla y, después de una serie de operaciones, el agua pase a una unidad de bombeo para alimentar directamente a un depósito pulmón desde el cual se alimentará la planta de flotación.The procedure for comprehensive treatment of slurry that the invention proposes achieves that wastewater are directed by a submerged pumping unit to a filter mesh light and, after a series of operations, the water goes to a pumping unit to feed directly to a reservoir lung from which the flotation plant will feed.
De forma más concreta, el procedimiento para el
tratamiento integral de purines objeto de la invención está
constituido a partir de un tratamiento por flotación, constituido
por un equipo de flotación con medios para la formación de
microburbujas mediante aire inducido, eliminando los sólidos en
suspensión, grasas y coloides del agua a tratar, estando formado
por un diseño compacto y funcional que consigue que la instalación
sea fácil de mantener con un reducido coste operativo, y el medio
de flotación por aire de cavitación está basado en la inyección de
microburbujas directamente al agua residual, sin previa aportación
de aire, no requiriendo la utilización de compresores de aire,
como de bombas ni tanques de
presión.More specifically, the process for the integral treatment of slurries object of the invention is constituted from a flotation treatment, constituted by a flotation equipment with means for the formation of microbubbles by induced air, eliminating suspended solids, fats and colloids of the water to be treated, being formed by a compact and functional design that makes the installation easy to maintain with a reduced operating cost, and the cavitation air flotation medium is based on the injection of microbubbles directly into the water residual, without prior air supply, not requiring the use of air compressors, such as pumps or tanks
Pressure.
El diseño constitutivo del tratamiento por flotación es compacto, por lo cual puede ser ubicado en un reducido espacio y estando capacitado para ser fácilmente trasladado sin una variación de la instalación.The constitutive design of the treatment by Flotation is compact, so it can be located in a reduced space and being trained to be easily moved without a installation variation.
En la primera sección, el aireador aspira el aire del medio ambiente que desciende a través del eje central del aireador introduciéndose en forma de microburbujas directamente en el agua residual y, en su ascensión, las microburbujas se adhieren a los sólidos en suspensión arrastrándolos hacia la superficie, donde se mantienen en estado de flotación.In the first section, the aerator sucks the environmental air that descends through the central axis of the aerator entering in the form of microbubbles directly in wastewater and, as it rises, the microbubbles adhere to suspended solids by dragging them to the surface, where They remain in a float state.
Los sólidos flotantes, configurados como grasas, aceites, suspensiones y coloides, son barridos por palas rastrillo accionadas por un juego de cadenas y llevados al canal de descarga.Floating solids, configured as fats, oils, suspensions and colloids, are swept by shovels rake driven by a set of chains and taken to the channel discharge.
En el canal de descarga los sólidos son dirigidos hacia una balsa de recepción y el agua de la sección de flotación se recicla continuamente a la cámara de aireación mediante tuberías de recirculación y, de esta forma, se impide la formación de sedimentos.In the discharge channel the solids are directed towards a reception raft and the water of the section of flotation is continuously recycled to the aeration chamber by means of recirculation pipes and, in this way, the sediment formation
La circulación continua de agua en la cámara de aireación queda asegurada aunque se interrumpa la alimentación de la invención.The continuous circulation of water in the chamber of aeration is ensured even if the power supply is interrupted the invention.
El agua clarificada fluye hacia un rebosadero ajustable que permite controlar el nivel del tanque principal y el agua clarificada pasa directamente del rebosadero a la descarga.Clarified water flows to an overflow adjustable to control the level of the main tank and the Clarified water passes directly from the overflow to the discharge.
Posteriormente, se utiliza un tratamiento por ultrafiltración que se configura como un medio físico de separación con objeto de separar a nivel molecular las sustancias disueltas, dispersas y coloidales de soluciones mayoritariamente acuosas por medio de membranas, y la solución a separar fluye por la membrana a una presión y velocidad determinadas.Subsequently, a treatment is used for ultrafiltration that is configured as a physical means of separation in order to separate dissolved substances at the molecular level, dispersed and colloidal of mostly aqueous solutions by medium of membranes, and the solution to be separated flows through the membrane at a certain pressure and speed.
Las moléculas de mayor tamaño son retenidas por la membrana, en tanto que las moléculas menores, es decir, sales y agua, por ejemplo, pueden traspasarla.The larger molecules are retained by the membrane, while the smaller molecules, that is, salts and water, for example, can pierce it.
A consecuencia de la turbulencia del flujo que se produce en la superficie de la membrana, las moléculas o las partículas retenidas van siendo eliminadas de forma continua, impidiendo de ese modo su acumulación.As a result of the turbulence of the flow that occurs on the surface of the membrane, molecules or retained particles are being eliminated continuously, thus preventing its accumulation.
La parte retenida se denomina retenido o concentrado, mientras que la fracción que cruza la membrana recibe el nombre de filtrado o permeado.The retained part is called retained or concentrated, while the fraction that crosses the membrane receives the name of filtered or permeated.
La capacidad de retención de la membrana viene dada por el tamaño de los poros y otros factores que influyen en la misma.The membrane retention capacity comes given by the size of the pores and other factors that influence the same.
El agua procedente del tratamiento de flotación se bombea desde el depósito de clarificado hacia cada uno de los tanques de trabajo/CIP de las ultrafiltraciones, pasando previamente por un tándem de filtros autolimpiantes cuya misión principal estriba en eliminar los sólidos que pudieran haber quedado en el agua tras el pretratamiento y, posteriormente, taponar las membranas.Water from flotation treatment it is pumped from the clarification tank to each of the Ultrafiltration work / CIP tanks, passing previously by a tandem of self-cleaning filters whose mission main is to eliminate solids that may have remained in the water after pretreatment and subsequently plug the membranes.
La invención contempla la colocación de tanques para facilitar las labores de limpieza y trabajo de forma individual para mejorar la flexibilidad de la invención propuesta.The invention contemplates the placement of tanks to facilitate cleaning and work in a way individual to improve the flexibility of the invention proposal.
El efluente procedente de cada uno de estos tanques es bombeado mediante una bomba centrífuga de alimentación y se incrementa su velocidad mediante una bomba centrífuga de recirculación para obtener la velocidad tangencial suficiente.The effluent from each of these tanks is pumped by a centrifugal feed pump and its speed is increased by a centrifugal pump recirculation to obtain sufficient tangential velocity.
El permeado de las membranas se dirigirá entonces a vertido, en el caso de que se cumplan los parámetros exigidos por la legislación, o bien hacia el tanque de trabajo de la ósmosis inversa.The permeate of the membranes will be directed then to discharge, in case the parameters are met required by legislation, or towards the work tank of reverse osmosis
La ósmosis inversa consiste en una operación que utiliza una membrana en la que, por medio de una presión, el disolvente de una solución se transfiere a través de una membrana fabricada especialmente para ser utilizada como membrana capacitada para retener sales y solutos de bajo peso molecular.Reverse osmosis consists of an operation which uses a membrane in which, by means of a pressure, the Solvent of a solution is transferred through a membrane specially manufactured to be used as a trained membrane to retain salts and solutes of low molecular weight.
Si una solución salina concentrada está separada del agua pura por este tipo de membrana, la diferencia de potencial químico tiende a promover la difusión del agua desde la disolución diluida hacia la concentrada para igualar las concentraciones y, en el equilibrio, la diferencia de niveles entre las dos disoluciones corresponde a la presión osmótica de la solución salina.If a concentrated saline solution is separated from pure water by this type of membrane, the difference of chemical potential tends to promote the diffusion of water from the diluted solution to the concentrate to match the concentrations and, in equilibrium, the difference in levels between the two solutions correspond to the osmotic pressure of the Saline solution.
En resumen, la ósmosis inversa consiste en aplicar una presión en sentido contrario a la presión osmótica para que el agua pura se difunda hacia la disolución diluida, de tal forma que se obtiene un agua prácticamente pura por un lado y una solución cargada en sales por el opuesto.In short, reverse osmosis consists of apply a pressure in the opposite direction to the osmotic pressure to that pure water diffuses into the diluted solution, in such a way so that you get practically pure water on the one hand and a solution charged in salts by the opposite.
El permeado de la ultrafiltración se envía desde el tanque de trabajo de la ósmosis a los módulos de ósmosis inversa, los cuales están diseñados de tal forma que varias capas dobles de membrana se bobinan en espiral en torno a un tubo central de recogida de permeado, y el concentrado fluye por el módulo a lo largo de la superficie de la membrana, drenándose el permeado en el material de drenaje a través de varias bobinas espirales hasta el tubo de recogida del mismo.The ultrafiltration permeate is sent from the osmosis work tank to the osmosis modules reverse, which are designed in such a way that several layers membrane doubles are spirally wound around a central tube permeate collection, and the concentrate flows through the module at along the surface of the membrane, draining the permeate in the drainage material through several spiral coils to the collection tube thereof.
El concentrado de la ósmosis se envía a la cabecera del tratamiento para ser eliminado de forma progresiva en las distintas etapas constitutivas del procedimiento y, por esta razón, se dota a la invención de un tanque de acumulación de agua limpia que, en el caso de considerarse necesario, podría utilizarse para las limpiezas químicas de la planta.The osmosis concentrate is sent to the treatment header to be phased out in the different constituent stages of the procedure and, for this reason, the invention is provided with a water accumulation tank clean that, if deemed necessary, could be used for chemical cleaning of the plant.
Debe indicarse que en la invención debe mantenerse en todo momento unas condiciones mínimas de presión y temperatura, ya que la filtración tangencial depende notablemente de ambos parámetros, siendo la temperatura mínima de 20ºC.It should be noted that in the invention it should maintain minimum pressure conditions at all times and temperature, since tangential filtration depends remarkably of both parameters, the minimum temperature being 20 ° C.
La frecuencia de las limpiezas químicas de los equipos estará determinada, una vez finalizada la puesta en marcha, con la colaboración de agua caliente y el agua residual que se produce será enviada a la cabecera con el fin de ser reprocesada junto con los vertidos.The frequency of chemical cleaning of equipment will be determined, once the start-up is finished, with the collaboration of hot water and wastewater that produces will be sent to the header in order to be reprocessed along with the spills.
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, se acompaña a la presente memoria descriptiva, como parte integrante de la misma, una hoja de planos en la cual con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, is accompanied herein descriptive, as an integral part of it, a sheet of plans in which with an illustrative and non-limiting nature, represented the following:
La figura número 1.- Representa una vista diagramática de los diferentes bloques de actuación que se incorporan en la invención relativa a un procedimiento para el tratamiento integral de purines.Figure number 1.- Represents a view diagrammatic of the different action blocks that are incorporate in the invention relative to a process for integral slurry treatment.
A la vista de la figura número 1 y única, puede observarse como el procedimiento para el tratamiento integral de purines está constituido a partir de una etapa de recepción (1) que, con posterioridad a la misma, se efectúa un primer tamizado (2) con filtro separador, efectuándose posteriormente un tamizado (3) de afino igualmente con filtro separador, incorporándose a continuación en el procedimiento un tornillo (4) compactador para los sólidos procedentes de los filtros separadores (2) y (3) para que, con posterioridad, se efectúe la incorporación de los elementos recuperados en un depósito (5) de homogeneización, y luego un pretratamiento (6) de coagulación por paso directo por inyección opcional que incorpora etapas de coagulación (7), ajuste de pH (8) y floculación (9) o bien realizar la aeroflotación (10), ultrafiltración (11) y ósmosis inversa (12).In view of the number 1 and only figure, you can be observed as the procedure for the integral treatment of purines is constituted from a reception stage (1) that, after it, a first screening is carried out (2) with separating filter, subsequently sifting (3) refining also with filter separator, joining then in the procedure a screw (4) compactor for solids from separator filters (2) and (3) to that, subsequently, the incorporation of the elements recovered in a homogenization tank (5), and then a pretreatment (6) of coagulation by direct passage through optional injection incorporating coagulation stages (7), adjustment pH (8) and flocculation (9) or perform aeroflotation (10), ultrafiltration (11) and reverse osmosis (12).
Las aguas residuales se dirigen mediante una unidad de bombeo sumergida a un filtro separador (2) con luz de malla apropiada y el agua pasa a un segundo tamizado con un filtro separador (3) con luz de malla, seguido de un tornillo compactador (4) para los sólidos procedentes de los filtros separadores (2) y (3) y, a continuación, se incorpora una unidad de bombeo para alimentar directamente a un depósito pulmón desde el cual se alimenta la planta de flotación.Wastewater is directed by a pumping unit submerged to a separator filter (2) with light appropriate mesh and water passes to a second sieve with a filter separator (3) with mesh light, followed by a compactor screw (4) for solids from separator filters (2) and (3) and then a pumping unit is incorporated for feed directly to a lung reservoir from which it Feed the flotation plant.
El equipo de tratamiento por flotación cuenta con medios para la formación de microburbujas mediante aire inducido con objeto de eliminar los sólidos en suspensión, grasas y coloides del agua a tratar, estando basado en la inyección de microburbujas directamente al agua residual sin previa aportación de aire, no requiriendo compresores de aire ni bombas ni tanques de presión.The flotation treatment team counts with means for the formation of microbubbles by air induced in order to eliminate suspended solids, fats and water colloids to be treated, based on the injection of microbubbles directly to wastewater without prior input of air, not requiring air compressors or pumps or tanks of pressure.
El aireador aspira el aire del medio ambiente que desciende a través del eje central del aireador, introduciéndose en forma de microburbujas directamente en el agua residual y, en su movimiento de ascensión, las microburbujas se adhieren a los sólidos en suspensión arrastrándolos hacia la superficie donde se mantienen en estado de flotación hasta ser barridos por palas rastrillo accionadas por un juego de cadenas y llevados o dirigidos a un canal de descarga hacia una balsa de recepción.The aerator sucks the air from the environment that descends through the central axis of the aerator, introducing microbubbles directly into the water residual and, in its ascending movement, the microbubbles are adhere to suspended solids by dragging them towards the surface where they remain in a float state until they are sweeps by rake shovels driven by a set of chains and taken or directed to a discharge channel towards a raft of reception.
El agua de la sección de flotación se recicla continuamente hacia la cámara de aireación mediante tuberías de recirculación y, de esta forma, se impide la formación de sedimentos.Water in the flotation section is recycled continuously towards the aeration chamber by means of pipes recirculation and, in this way, the formation of sediments
El agua clarificada fluye hacia un rebosadero ajustable que permite controlar el nivel del tanque principal pasando el agua clarificada del rebosadero a la descarga.Clarified water flows to an overflow adjustable to control the level of the main tank passing the clarified water from the overflow to the discharge.
Posteriormente, en el procedimiento se contempla una etapa por ultrafiltración en la que se utiliza una membrana a una velocidad y presión adecuadas, y el agua procedente del tratamiento de flotación se bombea desde el depósito de clarificado hacia cada uno de los tanques de trabajo/CIP de las ultrafiltraciones, pasando previamente por un tándem de filtros autolimpiantes y el efluente procedente de cada uno de estos tanques es bombeado mediante una bomba centrífuga de alimentación e incrementando su velocidad mediante una bomba centrífuga de recirculación para obtener la velocidad tangencial suficiente.Subsequently, in the procedure contemplates a stage by ultrafiltration in which a membrane at an adequate speed and pressure, and the water coming of the flotation treatment is pumped from the tank clarified towards each of the work tanks / CIP of the ultrafiltration, previously going through a tandem of filters self-cleaning and effluent from each of these tanks is pumped by a centrifugal feed pump e increasing its speed through a centrifugal pump recirculation to obtain sufficient tangential velocity.
El permeado de las membranas se dirige a continuación a vertido, en el caso de que se cumplan los parámetros exigidos por la legislación, o bien hacia un tanque de trabajo de la ósmosis inversa.The permeate of the membranes is directed to then to discharge, in case the parameters are met required by legislation, or towards a work tank of reverse osmosis
El permeado de la ultrafiltración es enviado desde el tanque de trabajo de la ósmosis a los módulos de ósmosis inversa, provistos de varias capas dobles de membrana que se bobinan en espiral en torno a un tubo central de recogida de permeado, y el concentrado fluye por el módulo a lo largo de la superficie de la membrana drenándose en el material de drenaje a través de varias bobinas espirales hasta el tubo de recogida.The ultrafiltration permeate is sent from the osmosis work tank to the osmosis modules reverse, provided with several double layers of membrane that spiral winding around a central collection tube of permeate, and the concentrate flows through the module along the membrane surface draining into drainage material at through several spiral coils to the collection tube.
Posteriormente, el concentrado se envía a la cabecera para ser eliminado de forma progresiva, manteniéndose en todo momento unas condiciones mínimas de presión y temperatura que no superen los 20ºC.Subsequently, the concentrate is sent to the header to be removed progressively, staying in at all times minimum pressure and temperature conditions that do not exceed 20ºC.
Claims (5)
descarga.2. Procedure for the integral treatment of slurries, according to the first claim, characterized in that in the flotation treatment microbubbles are generated by induced air formed by flotation by cavitation air in the injection of microbubbles directly into the wastewater, without prior air supply , the floating solids being swept by rake shovels driven by a set of chains and directed to a discharge channel towards the receiving raft, recycling being made to the water aeration chamber by means of recirculation pipes, while the clarified water flows towards an adjustable overflow that allows control of the level of the main tank, and the clarified water passes directly from the overflow to the chamber of
discharge.
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| ES2088749B1 (en) * | 1995-01-13 | 1997-03-01 | Pitarch Dionisio Mulet | SWINE AND SIMILAR WASTE PURIFICATION INSTALLATION. |
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