• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    System and method of implantation, extraction and/or operation of phytoremediation filters of wastewater. The invention relates to a system (1) for the implantation, extraction and/or operation of phytoremediation waste water filters, suitable for use in an artificial wetland (6), comprising: a main support beam (4) configured for partial or total immersion in the artificial wetland (6); and a plurality of fastening rods (5), arranged as fixing means for the vegetable filters, connected to the main beam (4). The system also comprises a substantially vertical ground support pin (3), connected to the main support beam (4), and comprising rotating means relative to a main axis, for the extraction of the beam (4) main support to a region (6 ') outside the artificial wetland (6). The invention also relates to a method of treating wastewater by phytoremediation plant filters in an artificial wetland (6), which is carried out by means of said system (1). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2679720A1
    申请号:ES201730049
    申请日:2017-01-17
    公开日:2018-08-30
    发明作者:Diego CICERO FERNÁNDEZ
    申请人:Asoc Ria；Asociacion Ria；
    IPC主号:
    专利说明:

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    SYSTEM AND METHOD OF IMPLEMENTATION, EXTRACTION AND / OR OPERATION OF VEGETABLE FILTERS OF FITORREMEDIATION OF WASTEWATER
    FIELD OF THE INVENTION
    The present invention is part of the technical field corresponding to the urban, agricultural and industrial wastewater treatment sector. More specifically, the invention relates, albeit without limitation, to purification of wastewater generated in small urban centers, or in isolated locations. The invention also results in application in the purification of eutrophizing effluents; purification of effluents with contaminants that can be eliminated by plant species with phytoremediation capacity; restoration and creation of wetlands and other aquatic habitats.
    BACKGROUND OF THE INVENTION
    Within the technical scope of urban, agricultural and industrial wastewater treatment, there are techniques called "unconventional", "extensive" or "natural soft systems" for water treatment. These include those based on "phytoremediation"; that is, in the use of vegetables (algae or plants) for water treatment; also called "phytosystems" or "phytodepurators".
    Phytoremediation systems can be especially advantageous at the socioeconomic and environmental level, in particular to serve in cases that are still pending to be managed efficiently and sustainably, such as wastewater generated in a large number of small urban centers ( less than 2000 equivalent inhabitants). It is also the case of wastewater generated by activities frequently isolated and not integrated into population centers such as rural accommodation, restaurants and other hospitality businesses or industries commonly located in rural areas, such as: sector transformation companies dairy; of liquor and food products; agricultural and livestock farms or industrial activities of various types such as mining. However, at present, the aforementioned wastewater still lacks collection and purification systems appropriate and appropriate to the physical characteristics,
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    chemical and microbiological of its effluents, and also lack specific adaptation pathways to the type of sites where they are located.
    Additionally, the sensitivity, high ecological and landscape value of the receiving means of the polluting effluents, the high degree of dispersion of the sources of wastewater in the territory, their small entity in many cases, and their typological diversity, they are the main factors that hinder and in many cases make the application of conventional sanitation and purification infrastructures unfeasible. Likewise, the limited economic resources, both of public and private entities, to assume the high costs associated with these infrastructures also suppose limiting factors to their implementation. It is therefore essential to determine more sustainable, effective, efficient, versatile and environmentally friendly sanitation alternatives that improve known technologies.
    Within the techniques of phytoremediation of water, the artificial wetlands of heliophytes or emerging macrophytes (genera: Phragmites, Typha or Sparganium, among others) are those that have been shown to be the most effective, efficient and least costly, and are the most widespread in the actuality All artificial wetlands of macrophyte plants for water purification consist of pre-treatment infrastructures and normally waterproofed rafts or canals, where plants are installed to form a plant tapestry whose root systems and associated microorganisms act by degrading and purifying pollutants from circulating water
    Of all the purification systems based on heliophytes or emerging macrophyte plants, floating and semi-submerged heliophyte systems are the two most advantageous and competitive alternatives today. These plants or vegetable filters - these two terms will be treated as synonyms in this document -, depending on their typology, both densities of specific plants and their immersion at specific depths are required for optimum functioning. To meet this need, some wastewater treatment systems of this type have been devised, such as those described in patent applications ES 2530762 B1 and ES 2490515 B1.
    In patent ES 2530762 B1 a modular system for water purification by phytoremediation through vegetable filters of the macrophyte plants type is disclosed. The system comprises a plurality of modules collaterally coupled and floating in water. In this case, the system cannot be regulated in relation to the depth of
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    immersion and flotation takes place due to the low density material from which the modules are made. The modules have arranged glasses where the vegetable filters are fixed. Nor can this system regulate plant density, as it is fixed in the module design itself. This limits the type of plants used to only one. On the other hand, the system may lose the original flotation or depth due to changes in the environment such as heavy snowfalls that increase the weight of the tapestry. Finally, a dismantling of the tapestry is necessary for its maintenance and cleaning, being necessary to resort to specialized personnel for it.
    As an alternative, patent ES 2490515 B1 discloses a heliophyte support structural module for wastewater treatment, configured to be completely submerged in water at a fixed depth. Said module comprises a frame with openings and open containers fixed vertically therein. The use of metal carpentry squares anchored directly to the frame that in turn screw to the walls of the channel or purification raft by means of screws, allows to fix the installation unit at a certain height. However, in this document there is always a system where the position of said main beams is always fixed, and where it is only possible to extract the vegetable filters housed in the rods by uninstalling the complete system.
    Although known phytoremediation systems allow to meet certain needs of plant filters for wastewater treatment, they are not yet exempt from the technical problem of providing a system for implanting, extracting and / or operating plant filters for sewage phytoremediation that allows an easy implantation to the required depth of the vegetable filters, to obtain an optimum operation, maintaining the suitable depth even when the vegetal tapestry differs in its total mass with the passage of time (for example, a change in the mass, originated by heavy snowfall), in addition to allowing the use of more than one type of plant filters, allowing the density of plants to be varied for it, and that additionally all this is reversible without the need for complete reinstallation, in an easy and clean way.
    With the limitations described in the previous paragraphs, it is necessary, in the present technical field, to provide a system of sewage treatment by phytoremediation, whose efficiency in implantation, extraction and / or operation, cleaning and maintenance improves the known solutions of the state of technique On the other hand, it
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    At the same time, it requires the system to offer substantial advantages in terms of sustainability and economic competitiveness, especially important in the purification of wastewater from small towns or small facilities where limited economic resources make it difficult to implement and maintain water sanitation infrastructure.
    For this purpose, the present invention thus proposes a removable wastewater treatment system by phytoremediation designed, although not limited, for its implementation in sewage treatment plants of small towns or small installations, whose technical implementation allows to overcome the problems detailed above.
    BRIEF DESCRIPTION OF THE INVENTION
    An object of the present invention preferably relates to the development of an implantation, extraction and / or operation system for plant sewage phytoremediation filters, suitable for use in an artificial wetland, comprising:
    - a main support beam configured for partial or total immersion in the artificial wetland;
    - a plurality of fastening rods, arranged as fixing means of the vegetable filters, connected to the main beam.
    Advantageously, said system also comprises a substantially vertical ground support pivot, connected to the main support beam, and comprising rotating means relative to a main axis, for the extraction of the main support beam to an outer region. to the artificial wetland. With this, the extraction is achieved in a way that can be both automatic and manual of the vegetable filters for maintenance and / or cleaning without dismantling the system and ensuring that the vegetable filters suffer the minimum stress, improving the known systems quickly and simply. of the state of the art.
    In a preferred embodiment of the invention, the spacing of the system rods, in their connection to the main support beam, is adjustable to be adapted to the type of vegetable filters used. This achieves the adaptation of the density of vegetable filters to the specific type of these. Moreover, by configuring the rods in more than a single spacing, it is possible to offer a way to install more than one type of vegetable filters, with different optimum densities.
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    In a preferred embodiment of the invention, the system further comprises a secondary support bar and / or one or more support braces as structural reinforcement.
    In a preferred embodiment of the invention, the support pivot is height adjustable, so that the system is configurable between at least:
    - a first position with the beam submerged inside the artificial wetland;
    - a second position with the beam above the wetland water level;
    - a third position with the semi-submerged beam in the wetland.
    This achieves the adaptation of the depth of the vegetable filters to the needs of each type for optimal phytoremediation of wastewater. Moreover, in view of possible changes in the environment, the depth at which the vegetable filters are found can be rectified, thus avoiding damage to the health of the plant filters.
    In a preferred embodiment of the invention, the main axis of the rotating means, for the extraction of the main support beam to a region outside the artificial wetland, is a substantially vertical axis or a substantially horizontal axis to propitiate, respectively, a displacement horizontal or vertical on said main beam. With this, it is possible to extract the vegetable filters in two different configurations, according to need.
    In a preferred embodiment of the invention, the system further comprises secondary means for fixing or securing vegetable filters connected to the main beam and / or to the rods.
    In a preferred embodiment of the invention, the system further comprises a second support beam connected to a second plurality of grill-shaped rods configured to arrange the stems of the vegetable filters in a certain orientation and prevent the aerial biomass from falling to the wetland, being retained on the grill. This is achieved by separating the aerial biomass while it is generated.
    Another object of the present invention relates to a wastewater treatment plant comprising at least one artificial wetland, where one or more systems for implanting, extracting and / or operating plant sewage phytoremediation filters are housed, according to any of the embodiments described herein.
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    The object of the present invention is also a method of wastewater treatment by means of phytoremediation vegetable filters in an artificial wetland, which is carried out by means of a system or a plant according to any of the embodiments described herein. Advantageously, said method comprises performing the following steps:
    - the vegetable filters are fixed to the system rods;
    - the beam is submerged with the rods and the vegetable filters inside the artificial wetland;
    - the vegetable filters are kept submerged for a period of time for the realization of wastewater phytoremediation.
    Preferably, the wastewater treatment method may further comprise the step of extracting the rods and the vegetable filters from the wetland to a region outside it to proceed with the maintenance of the vegetable filters. With this, it is possible to carry out maintenance and / or cleaning operations of the vegetable filters and the system from outside the water, without having to require an operator to enter the wetland for this. All this subjecting the vegetable filters to the minimum stress.
    More preferably, the wastewater treatment method may comprise an additional stage where, by keeping the rods and vegetable filters in the outer region of the wetland, the existing biomass is removed from outside the wetland. It is thus possible to remove the biomass without the need to introduce an operator into the wetland for it and without the risk that part of the biomass falls into the water.
    More preferably at the stages of extraction, cleaning of vegetable filters and removal of biomass, the wastewater treatment method may additionally comprise a stage in which maintenance operations are carried out inside the wetland. This makes it easier to clean the wetland without damaging the vegetable filters, as these are sufficiently far from the wetland at this stage.
    In a preferred embodiment of the invention, the wastewater treatment method may comprise successive stages in which the spacing of the rods is adjusted for the adaptation of the density of the vegetable filters with a better work of vegetable filtration of the wastewater. This is achieved by being able to change the density of
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    Vegetable filters once these are installed in the system when the density of the vegetal tapestry undergoes changes, without the need to reposition the filters one by one.
    In a preferred embodiment of the invention, the wastewater treatment method may comprise successive stages in which the height of the pivot is adjusted for the adaptation of the height of the vegetable filters in relation to the surface of the wetland water according to the characteristics of the water to be treated and the type of vegetable filters. With this, it is possible to correct the depth of placement of the vegetable filters in the wetland so that phytoremediation is optimal at all times.
    In a preferred embodiment of the invention in which the vegetable filters are constituted by macrophyte plants naturally endowed with an airborne (air chambers in their tissues), the wastewater treatment method may comprise successive stages in which the height of the pivot is automatically adjusts during episodes of increased circulating flow and water level thanks to the thrust exerted upwards by the air chambers that confer a low density to the tissues of the vegetable filters, against the weight of the implantation, extraction and / or system operation.
    In the preferred embodiment of the invention in which the system comprises a second support beam connected to a second plurality of grill-shaped rods, the wastewater treatment method may comprise an additional stage, in which the part is cut aerial of the plants at a level above the surface of the grill (for example by means of machinery equipped with a pole to work from the outside of the wetland as hedge trimmers or high trimmers) and the second support beam is extracted to an external region of the wetland by means of the vertical folding of said beam for the harvest of the aerial biomass of the vegetable filters. As the second support beam rises, once the vertical axis is exceeded, the aerial biomass falls by gravity directly depositing on the auxiliary surface of the edge of the raft or channel or on a trailer, truck or transport device. the biomass With this, it is possible to remove the aerial biomass in a simple and independent way from the extraction of the main beam, avoiding having to extract the vegetable filters if it is not necessary for other maintenance and / or cleaning operations.
    The invention thus allows to propose a wastewater treatment solution through a system, plant and method of water treatment by phytoremediation, whose
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    System dimensions are perfectly scalable to suit the needs of any case by expanding the size of the system and / or by increasing the number of treatment systems arranged in series. The invention makes it possible to carry out the different phases of installation of the vegetable filters and wastewater treatment. The invention further enables the regulation of the depth of the vegetable filters as well as varying the density of the plant tapestry. The invention enables the extraction of the system (s) and, preferably, the cleaning and / or maintenance of the vegetable filters and the discharge of the aerial biomass in a region outside the artificial wetland. This allows the maintenance of said system in a clean, simple and non-contaminating way of biomass the water being treated. This ensures that the operator in charge of maintenance must not come into contact with the substances to be treated or physically enter the infrastructure for such maintenance. The invention is especially functional and suitable for small treatment plants whose managers wish to carry out an operation with their own non-specialized personnel in a sustainable way.
    DESCRIPTION OF THE FIGURES
    Figure 1 shows a plan view of the wastewater treatment system in the position with the beam inside the wetland, according to a preferred embodiment of the invention.
    Figure 2 shows a profile view of the wastewater treatment system in the position with the beam within the wetland, according to a preferred embodiment of the invention.
    Figure 3 shows a plan view of the wastewater treatment system in the position with the beam in a region outside the wetland, according to a preferred embodiment of the invention.
    Figure 4 shows a profile view of the wastewater treatment system in the position with the beam submerged in the wetland, according to a preferred embodiment of the invention.
    Figure 5 shows a profile view of the wastewater treatment system in the position with the beam outside the wetland, according to a preferred embodiment of the invention.
    Figure 6 shows a profile view of the wastewater treatment system in the position with the beam in a region outside the wetland, according to a preferred embodiment of the invention.
    5 Figures 7A-7D show plan and profile views of a wastewater treatment system with a vertical rotation mechanism compatible with another horizontal rotation mechanism, according to a preferred embodiment of the invention.
    NUMERICAL REFERENCES USED IN THE FIGURES
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    In order to help a better understanding of the technical characteristics of the invention, the aforementioned Figures 1-7 are accompanied by a series of numerical references where, for illustrative and non-limiting purposes, the following is represented:
     (one)  System of implantation, extraction and / or operation of vegetable filters
     (2)  Hot shoe
     (3)  Support pivot
     (4)  Main support beam
     (4')  Second support beam
     (5)  Plurality of rods
     (5')  Plurality of grill-shaped rods
     (6)  Artificial wetland
     (6 ’)  Region outside the wetland
     (7)  Flip module
     (8)  Pin and vertical axis of rotation
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    DETAILED DESCRIPTION OF THE INVENTION
    A preferred embodiment of the present invention will be described below, provided for illustrative but not limiting purposes.
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    A main object of the invention relates, as described in the preceding sections, and as represented in Figures 1-6, to a wastewater treatment system (1) comprising: a shoe (2) as a foundation of the system (1), a pivot (3) supporting it on the shoe (2), a main support beam (4) 25 and a plurality of rods (5) for fixing plant or plant filters .
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    The wastewater treatment system (1) is suitable for use in an artificial canal, raft or wetland (6). More specifically, the elements for the realization of the treatment system are described below, as shown in Figures 1-6:
    - a foundation shoe (2) where the support pivot (3) is arranged or anchored. Said foundation can be carried out, for example, by concreting.
    - a support pivot (3) whose height is preferably adjustable, for example through a hydraulic, pneumatic, mechanical or electromechanical and rotary mechanism with respect to a main axis for the extraction of the main support beam (4) up to a region (6 ') outside the artificial wetland (6).
    - a main support beam (4) connected to the pivot (3) that is preferably bent at two points to overcome the slope of the wetland edge (6), configured for partial or total immersion in the wetland (6).
    - a plurality of fixing rods (5) connected to the main beam (4), whose spacing is preferably adjustable and which are used for fixing and development of plants or plant filters.
    A description of the operation of the removable system (1) for the corresponding wastewater treatment is detailed below:
    For the correct operation of the treatment system (1) it is necessary, first, to fix the plants thereto. The plants can be fixed to the rods (5) in different ways depending on the format in which the plants are supplied. In a preferred embodiment of the invention, the plants are strung laterally on the rods (5) through the root ball or installed by interlocking the rhizomes between adjacent rods (5). This fixation is preferably performed in an external region (6 ’) to the wetland (6); region (6 ’) shown in Figures 3 and 6.
    In a preferred embodiment of the invention, the planting density is variable through the adjustable spacing of the rods (5), depending on the requirements of the species to be used or the particularities of the body of water to be treated. In a preferred embodiment of the invention, for greater safety, the plants can be fixed to the structure with wire, rope or similar materials.
    The plants form a vegetal tapestry once fixed to the rods (5). The fixing rods (5) are connected to the main support beam (4) which in turn is welded to the support pivot (3) arranged in the shoe (2). A hydraulic, pneumatic mechanism,
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    mechanical or electromechanical regulates the height of the pivot (Figures 2,4 and 5). In addition, the pivot (3) is rotary, preferably allowing a rotation of up to 360 degrees with respect to its main axis (said axis being, in this embodiment, a vertical axis). By means of this mechanism, it is possible to rotate the pivot (3) to place the beam (4) that supports the tapestry above the wastewater (Fig. 5) and then submerge the tapestry in the wetland (6) (Fig. 2 ).
    Preferably, for periodic maintenance of the plant tapestry, it is extracted from the wetland (6). The extraction process occurs in reverse of the immersion process: first the beam (4) is removed by regulating the height of the pivot (3) and then the pivot (3) is rotated horizontally to deposit the beam (4) out of the wetland ( 6) (Fig. 6).
    The maintenance work of the type: mowing, harvesting, replacing marras and removing biomass takes place outside the wetland (6) without modifying the position of the tapestry, thus subjecting the plants to minimum stress while protecting the water from the unwanted fall of biomass.
    Optionally, once the beam (4) is removed with the tapestry, the free end of the beam can be supported on a custom stand. Likewise, the elevation and regulation of the height of the pivot (3) can be carried out manually or through a motorized apparatus.
    Optionally, in a preferred embodiment of the invention in which the vegetable filters are constituted by macrophyte plants naturally endowed with an airbrush (air chambers in their tissues), the height of the pivot (3) can be automatically adjusted in successive stages during episodes of increase of the circulating flow and of the level of the water thanks to the push exerted upwards by the air chambers of said macrophyte plants that confer a low density to the tissues of the vegetal filters, against the weight of the system (1) of implantation, extraction and / or operation.
    Alternatively, two or more spacing of the rods (5) can be combined to obtain a plant tapestry of different species, adapting the spacing to the needs of the plants of interest and achieving an optimization of the phytoremediation process, or expanding the spectrum of types of sewage that can be treated.
    Once the main object of the invention has been described, a second main object of the invention referred to a system (1) is then described to which a
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    module (7) abatióle for the harvest of aerial biomass, which is shown schematically in Figures 7A-7D of this document. Said module (7) comprises a second support beam (4 '), arranged in a region greater than the main beam (4) of the system (1) of the invention, preferably having a pivot fixing point (3) to pin mode (8), and which works at the same time as a vertical axis of rotation to be able to lower said beam (4 '), allowing its insertion or extraction of the water body.
    At its distal end, the beam (4 ') preferably has a ring or means of related engagement (not shown in the figures), from which a fixing element (cable, wire, rod, etc.) to the beam (4) main support. This ring also serves to fix adjacent beams (4 ’) with a hoop-to-hoop through bar, thus allowing several or all of the folding modules (7) to be lifted from a channel or wetland (6) simultaneously.
    Attached or welded to the first square that makes the support beam (4 ') it is possible, optionally, to have one or more secondary bars with two functions at rest: give a structural reinforcement to said beam (4') and serve as a module support point (7) foldable.
    On the beam (4 '), a second plurality of grill-shaped rods (5') and / or polygonal cells of adequate size are also seated to allow the growth of stems and leaves through the grill (5 ') , spaced so that the leaves and fragments of biomass are retained on it when they fall naturally, or when mowing or pruning.
    A third main object of the invention is based on a system (1) whose main axis of the rotating means for the extraction of the support beam (4) to a region outside (6 ') to the artificial wetland (6) is an axis substantially vertical to promote vertical displacement in said main beam (4). Said beam (4) is connected to a plurality of vegetable filter fixing rods (5) and to a grounded support pin (3).
    Another object of the invention relates to a wastewater treatment plant comprising at least one artificial wetland (6), where one or more systems (1) are housed, according to any of the embodiments described herein.
    权利要求:
    Claims (15)
    [1]
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    1. - System (1) for implantation, extraction and / or operation of plant filters for sewage phytoremediation, suitable for use in an artificial wetland (6), comprising:
    - a main support beam (4) configured for partial or total immersion in the artificial wetland (6);
    - a plurality of fastening rods (5), arranged as fixing means of the vegetable filters, connected to the main beam (4); Y
    characterized in that the system also includes
    - a substantially vertical ground support pivot (3), connected to the main support beam (4), and comprising rotating means relative to a main axis, for the extraction of the main support beam (4) up to a region (6 ') outside the artificial wetland (6).
    [2]
    2. - System (1) according to the preceding claim, wherein the spacing of the rods
    (5) in its connection to the main support beam (4) it is adjustable to be adapted to the type of vegetable filters used.
    [3]
    3. - System (1) according to any of the preceding claims, further comprising a secondary support bar and / or one or more support braces as structural reinforcement.
    [4]
    4. - System (1) according to any of the preceding claims, wherein the support pivot (3) is height adjustable, such that the system is configurable between at least:
    - a first position with the beam (4) submerged inside the artificial wetland (6):
    - a second position with the beam (4) above the wetland water level
    (6):
    - a third position with the beam (4) semi-submerged in the wetland (6).
    [5]
    5. - System (1) according to any of the preceding claims, wherein the main axis of the rotating means, for the extraction of the main support beam (4) to a region (6 ') outside the artificial wetland (6), it is a substantially vertical axis or a substantially horizontal axis to propitiate, respectively, a horizontal or vertical displacement in said main beam (4).
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    [6]
    6. - System (1) according to any of the preceding claims which further comprises a second support beam (4 ') connected to a second plurality of grill-shaped rods (5'), configured to arrange the stems of the vegetable filters in a certain orientation and prevent the aerial biomass from falling into the wetland (6).
    [7]
    7. - Purification plant comprising at least one artificial wetland (6), where one or more systems (1) according to any of the preceding claims are housed.
    [8]
    8. - Method of wastewater treatment by means of phytoremediation vegetable filters in an artificial wetland (6), which is carried out by means of a system (1) according to any one of the preceding claims 1-6 or a plant according to claim 7 , and characterized in that it comprises performing the following steps:
    - the vegetable filters are fixed to the rods (5) of the system (1);
    - the beam (4) is submerged with the rods (5) and the vegetable filters inside the
    wetland (6) artificial;
    - vegetable filters are kept submerged for a period of time for
    realization of phytoremediation of wastewater.
    [9]
    9. - Wastewater treatment method according to the preceding claim, wherein additionally the rods (5) and the vegetable filters are extracted from the wetland (6) to a region (6 ') outside the wetland (6) and maintenance is carried out of vegetable filters.
    [10]
    10. - Wastewater treatment method according to the preceding claim, where the rods (5) and the vegetable filters remain in the outer region (6 ') of the wetland (6), the existing biomass is removed from outside the wetland (6 ).
    [11]
    11. - Wastewater treatment method according to claims 9 and 10, where maintenance operations are carried out inside the wetland (6).
    [12]
    12. - Wastewater treatment method according to the preceding claims 8-11 wherein further the spacing of the rods (5) is adjusted in successive stages for the adaptation of the density of the vegetable filters with a better work of vegetable water filtration residual.
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    [13]
    13. - Wastewater treatment method according to the claims
    previous 8-12, where also the height of the pivot (3) is adjusted in successive stages for the adaptation of the height of the vegetable filters in relation to the surface of the wetland water (6) according to the characteristics of the water to be treated and the type of vegetable filters.
    [14]
    14. - Wastewater treatment method according to the claims
    previous 8-13 where the vegetable filters are constituted by macrophyte plants, where
    In addition, the height of the pivot (3) is automatically adjusted in successive stages during episodes of increased circulating flow and water level thanks to the thrust exerted upwards by the air chambers of said macrophyte plants that confer a low density to the tissues of the vegetable filters, against the weight of the system (1) of implantation, extraction and / or operation.
    [15]
    15. - Wastewater treatment method according to the claims
    previous 8-14, where the system (1) comprises a second support beam (4 ’) connected to a second plurality of grill-shaped rods (5’) and where, in addition:
    - the aerial part of the vegetable filters is cut at a level above the surface of the grill (5 ’);
    - said second support beam (4 ’) is extracted to an external region (6’) of the wetland (6) by means of a vertical folding of said beam (4 ’) to harvest the aerial biomass of the vegetable filters.
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    同族专利:
    公开号 | 公开日
    ES2679720B1|2019-07-05|
    EP3572380A4|2020-10-28|
    EP3572380B1|2022-03-16|
    EP3572380A1|2019-11-27|
    WO2018134459A1|2018-07-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2120388B1|1997-04-04|1999-03-01|Univ Madrid Politecnica|PROCEDURE FOR THE TREATMENT OF WASTEWATER AND POLLUTANT DISCHARGES BASED ON CROPS OF EMERGING MACROPHYTES CONVERTED INTO FLOATS.|
    US7776216B1|2007-04-10|2010-08-17|Aquafiber Technologies Corp.|Floating aquatic plant culture systems and associated methods|
    ES2324277B2|2009-03-25|2010-04-28|Universidad Politecnica De Madrid|CONTINUOUS COVER OF HELOFITANT PLANTS WITH LASTRE FOR SEMISUMERGED USE IN THE WASTEWATER CLEANING.|
    ES2331556B2|2009-04-29|2010-10-14|Universidad Politecnica De Madrid|PLANTATION UNIT FOR THE CROP OF HELOPHIT PLANTS AND PLANTATION SYSTEM THAT INCLUDES THE SAME.|
    ES2448040B1|2012-09-13|2014-12-19|Pedro Luis SIGUERO LLORENTE|Float culture of macrophytes in reservoirs|
    US8889006B2|2013-01-21|2014-11-18|Leon A. Lassovsky|System for wastewater treatment using aquatic plants|
    ES2490515B1|2013-03-01|2015-04-27|Quarq Enterprise, S.A.|Modular suspension system of macrophyte plants for natural water purification|
    ES2530762B1|2014-11-20|2016-05-27|Blue Water Solutions S L|Helofite support structural module, water treatment installation comprising it, structural module assembly method and water treatment method|
    法律状态:
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    优先权:
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    PCT/ES2018/070031| WO2018134459A1|2017-01-17|2018-01-16|System and method for implanting, extracting and/or operating phytoremediation plant filters for wastewater|
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