WO2024062095A1 - Installation de traitement des eaux usées et bâtiment comportant une telle installation - Google Patents
Installation de traitement des eaux usées et bâtiment comportant une telle installation Download PDFInfo
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- WO2024062095A1 WO2024062095A1 PCT/EP2023/076213 EP2023076213W WO2024062095A1 WO 2024062095 A1 WO2024062095 A1 WO 2024062095A1 EP 2023076213 W EP2023076213 W EP 2023076213W WO 2024062095 A1 WO2024062095 A1 WO 2024062095A1
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- WIPO (PCT)
- Prior art keywords
- water
- filter
- treatment
- building
- phytopurification
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Classifications
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/005—Black water originating from toilets
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/36—Biological material, e.g. enzymes or ATP
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/14—Treatment of water in water supply networks, e.g. to prevent bacterial growth
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Definitions
- the present invention enters the field of water purification. It concerns more particularly a wastewater treatment installation from a building and a building comprising such an installation.
- Waste water corresponds to “raw water” leaving directly from collective or individual buildings. Wastewater consists of domestic water called “gray water” and black water called “sewage water”.
- Black water comes from toilets and sanitary facilities in buildings. Black water is made up of a mixture of solid compounds, notably fecal matter, and liquid compounds or compounds dissolved in a liquid medium, notably urine.
- So-called “domestic” or “gray” water is that coming mainly from showers, sinks, washing machines and dishwashers, installed in these buildings. Household water is lightly polluted and in particular free of fecal or urine contamination. This results in a strong potential for the recovery of household water, particularly for use in flushing toilets or for irrigation or watering green spaces.
- the main aim of the present invention is to respond at least partially, and preferably substantially in full, to the aforementioned request.
- the present invention relates to an installation for treating wastewater from a building, characterized in that it comprises:
- a pre-treatment module configured to transform said waste water into pre-treated water
- a phytopurification treatment module positioned at the roof of the building and configured to transform pretreated water into purified water
- the treatment module comprising at least one planted filter with saturated-unsaturated flow.
- the wastewater treatment installation of the invention has a simplified structure and requires little time and resources for management and maintenance by an operator, in particular for the phytopurification treatment module which has almost autonomous operation. over time.
- the space taken up by the installation of the invention within the building is limited, in particular due to the installation of the processing module by phytopurification on the roof and a limited number of storage means.
- the volume occupied by the installation of the invention within the building is optimized to limit its deployment in valuable areas of the building, favorably suited to another use.
- the phytopurification treatment module on the roof of the installation of the invention also makes it possible to directly and simply recover rainwater, in addition to the wastewater to be treated, to create a buffer zone, to improve the thermal and even sound insulation of the building and enhance its aesthetics by giving it a “green” character and ecological marking, by setting up a planted area on the roof.
- This vegetated zone in the form of a planted aquatic environment also gives the building specific thermal insulation and cooling properties at roof level. Due to its specificity, it also contributes to biodiversity in urban areas.
- the installation of the invention makes it possible to limit energy consumption and building costs by recycling the majority of wastewater, particularly household wastewater.
- wastewater particularly household wastewater.
- by limiting or avoiding the use of drinking water for uses without direct contact with people it is possible to reduce the consumption of this resource which is currently becoming more expensive and which must be preserved.
- the installation of the invention contributes to the depollution, to the cooling of the atmosphere near the building and to the improvement of the urban landscape environment, in particular by the presence on the roof of plants from the phytopurification treatment module.
- the installation of the invention therefore constitutes a simple and effective structural means for the treatment of wastewater from a building, favorably allowing their recycling and revaluation locally as water and hydraulic resources, by prioritizing a reuse of said water treated inside or around said building, in particular for example in the sanitary toilet network of said building, in possible vehicle cleaning installations, in the building or its surroundings, or in an irrigation or water network. watering, possibly automated, of surrounding green spaces or of plants installed on balconies for example.
- the installation of the invention respects the environment.
- the installation of the invention combines aesthetics and eco-responsible design and is part of a logic of preserving planetary water resources, without however harming the safety, comfort and need for water use of the population, particularly those of heavily populated areas.
- FIG. 1 represents a schematic perspective view of a building equipped with a wastewater treatment installation according to the invention
- FIG. 2 represents a functional schematic view of a domestic water treatment installation of the invention
- FIG. 3 represents a schematic top view of one embodiment of the phytopurification treatment module
- FIG. 4 represents a schematic sectional view along A-A of the water phytopurification treatment module, shown in Figure 3,
- Fig. 5 is a perspective view of an overflow means forming part of the module of Figures 3 and 4.
- building mainly and preferably designates collective buildings, such as residential, tertiary or professional buildings, but can also designate individual buildings, such as individual houses.
- domestic water designates lightly polluted water from showers, sinks, washing machines, dishwashers, without fecal or urinary contamination, in an overall liquid form but which may contain solid compounds. , such as food or organic waste/residues, hair, natural or synthetic fibers.
- pretreated water designates water having undergone pretreatment aimed at eliminating, advantageously by mechanical filtration, coarse solid or viscous materials in flotation, in suspension, particularly also excess fats and oil. Such pretreatment may or may not be useful or necessary depending on the nature and quality of the wastewater to be treated.
- purified water designates pretreated water, after passing through the phytopurification treatment module, which has undergone phytopurification treatment.
- Phytopurification is a water purification treatment involving the depollution of water by adapted plants and by microorganisms associated with the root systems of these plants. Examples of implementing phytopurification are described in particular in documents US 6277274, FR 2942791 and WO 2021/018629.
- treated water designates herein the water purified within the storage means after application of the microbiological disinfection means.
- the treated waters present, for an application in France of the invention, a microbiological quality meeting the standard of the Regional Health Agency (ARS) and the Order of August 2, 2010 relating to the use of water from the purification treatment of urban waste water for the irrigation of crops or green spaces and the French Decree of January 11, 2007 relating to the limits and quality references of raw water and water intended for human consumption mentioned in articles R. 1321 -2, R. 1321 -3, R. 1321 -7 and R. 1321 -38 of the French public health code.
- ARS Regional Health Agency
- the treated water AND will present a microbiological quality meeting the regulations and health criteria in force locally by a corresponding adaptation of the means of the invention, which is at the scope of those skilled in the art having knowledge of the present invention.
- the “treated water” obtained at the end of treatment by installation 1 has at least a concentration of pollutants and microorganisms admissible for:
- the present invention relates to a treatment installation 1 for EM wastewater from a building 2, characterized in that it comprises:
- a pre-treatment module 4 configured to transform said EM wastewater into EP pretreated water
- a phytopurification treatment module 6 positioned at the level of the roof 21 of building 2 and configured to transform pretreated water EP into purified water EE,
- a storage means 8 of said EE purified water advantageously equipped with a microbiological disinfection means 9 configured to transform the EE purified water into ET treated water, and
- the phytopurification treatment module 6 comprising at least one planted filter 62 with saturated-unsaturated flow.
- the treatment installation 1 has a simple structural configuration with a reduced number of means, but nevertheless allows the transformation of waste water EM, in particular of the household waste water type, at least into purified water EE, preferably into water treated AND of sufficient microbiological quality for use both internally in the building and in its surrounding space.
- the phytopurification treatment module 6 constituting the component occupying the most floor space is installed on the roof21.
- the treatment installation 1 being preferentially deployed mainly on the top of the building (flat roof 21), its deployment on the ground is thus limited, which favors the freeing up of space and the possibilities for developing natural areas in the urban landscape near the building, in addition to providing a green space at roof level 21.
- the structure of the roof and the supporting elements of the building are not excessively stressed.
- pretreatment module 4 (with its buffer storage tank 42) and the storage means 8, and possibly other elements constituting the installation 1 (other than the module 6), can be arranged in a room or equivalent space T in the basement of building 2 containing installation 1 (see figures 1 and 2).
- the hydraulic operating principle of the or each planted filter 62 is of the unsaturated/saturated type.
- the water flows vertically and gravitationally into the porosity of the filter bed 622 planted with plants 623 of the planted filter 62 concerned, until saturation of the porosity of said bed over a variable height depending on the volume of water to be treated.
- the saturation associated with a hydraulic residence time contributes to the purifying performance of the planted filter 62.
- the planted filter 62 in question is completely or partially drained, thus allowing its reoxygenation.
- the alternation of filling and emptying phases, preferably associated with a supply through tarpaulins, makes it possible to vary the oxygenation conditions in said filter and therefore to establish aerobic/anaerobic conditions in the filter, favorable to the treatment.
- a more precise description of this mode of operation of a planted filter 62 implemented within the framework of the invention is presented below.
- the treatment installation 1 in addition to preserving the environment by revaluing the available water resources, makes it possible to guarantee the quality of the treated water for the specific use.
- the treatment installation 1 promotes the improvement of the quality of the atmosphere in the city, and contributes to the depollution and improvement of the aesthetics of the urban landscape by notably allowing the development and growth of plants. on the roofs of buildings.
- the installation 1 integrates a pretreatment module 4 and a storage means 8. Furthermore, to ensure the circulation of water between the different components functional of the installation 1, the latter may include, in addition to the means 3 for collecting waste water EM, also means 5 for transferring pretreated water EP and/or means 7 for collecting and conveying purified water EE.
- the installation 1 comprises more precisely:
- transfer means 5 for transferring pretreated water EP (from module 4) to the phytopurification treatment module 6, these transfer means 5 advantageously comprising at least one self-curing lifting pump 51 associated with a lifting column 52,
- the means 5 for transferring the pretreated water EP to the phytopurification treatment module 6 are configured and controlled to provide a tarpaulin supply of the planted filter(s) 62 and the means 7 for collecting the purified water EE and d routing of these towards the storage means 8 are configured and controlled to carry out, in a controlled manner or at regular intervals corresponding to a pre-programmed length of stay, a partial or total emptying of the purified water EE from the installed filter(s) 62, resulting in the aforementioned alternation of filling and emptying phases of the phytopurification treatment module 6.
- the pre-treatment module 4 preferably positioned within the lower part or the cellar of the building 2, for example in a room technique T in the basement together with the storage tank 8 and possibly at least part of their accessory equipment, includes:
- At least one separation means 41 configured to separate EM wastewater from solid waste, in particular food or organic waste, for example a self-curing separator filter, where appropriate swirling, and,
- At least one storage means 42 of waste water EM possibly provided with a mechanical filtration means 43, such as a pre-filtration tank equipped with ventilation vents and overflows opening onto the sanitation network B , the evacuation of which is preferably directed by gravity towards the transfer means (5).
- a mechanical filtration means 43 such as a pre-filtration tank equipped with ventilation vents and overflows opening onto the sanitation network B , the evacuation of which is preferably directed by gravity towards the transfer means (5).
- the pretreatment module 4 Positioned in the lower part of building 2, the pretreatment module 4 is easy to access for an operator, particularly in the event of an inspection, and makes it possible to recover wastewater coming from the heights of building 2 by the simple effect of gravity, without the need for an additional energy-consuming moving device.
- placing the pretreatment module 4 inside the building 2 protects it against bad weather and climatic agents, and in particular freeze-thaw phenomena, and ensures its preservation over time.
- the positioning in the lower part of the building 2 of the pretreatment module 4 facilitates the rejection of solid waste, of the food type directly into the evacuation network provided for this purpose, after the separation operation via the means separation 41.
- the separation means 41 physically separates, mechanically, the solid waste from liquid EM wastewater. Different means known to those skilled in the art to achieve this separation can be implemented.
- the separation means 41 comprises at least one self-curing separator filter.
- the latter makes it possible to roughly separate the conveyed solid waste from the liquid fraction of EM wastewater, in particular of the food waste type.
- the solid waste is directed into the sanitation network B by any known suitable means and the waste water EM is directed to at least one storage means 42 by any known means of the type conduit or pipeline.
- said at least one storage means 42 is intended for storing EM wastewater before its transfer to the phytopurification treatment module 6.
- the storage means may consist of a tank or a storage tank.
- the storage means 42 is provided with a mechanical filtration means 43 allowing additional filtration of EM wastewater and their separation from solid waste.
- this storage means 42 is constructively configured to prevent the development of flies, mosquitoes and other harmful insects.
- the storage means 42 consists for example of a prefiltration tank 42 provided with at least one mechanical separation filter 43 of the granular filter type making it possible to separate EM waste water from solid food waste by vertical filtration through the granular material.
- the mechanical separation filter 43 is configured to separate EM wastewater from its solid waste more finely than the separation means 41.
- the installation 1 can comprise means for dispersing and surface distribution 61 of the pretreated water (EP) at the level of the module 6 of treatment by phytopurification 6.
- the transfer means 5 comprise at least one self-curing lifting pump 51 associated with a lifting column 52, which opens onto said dispersion and surface distribution means 61 which preferably ensure a substantially homogeneous distribution over the entire surface of the module 6.
- These means 61 can for example, in a non-limiting manner, consist of nozzles with extended angular spraying.
- the lifting column 52 is configured and dimensioned to allow the creation of a Venturi effect during the transfer of the pretreated water EP to the phytopurification treatment module 6, so as to create oxygenation of the pretreated water EP within the lifting column 52.
- This oxygenation creates microbubbles in the pretreated water EP and also makes it possible to homogenize its transfer and its distribution speed within the lifting column 52, so as to discharge this water according to a distribution and a homogeneous flow through the dispersion means 61.
- the dispersion means 61 consist of at least one spreading system.
- the spreading system consists of a network of spreading booms opening onto dispersion nozzles arranged so as to cover the entire surface of the module with EP pretreated water. treatment by phytopurification 6, and this in a homogeneous manner.
- the phytopurification treatment module 6, positioned on the roof 21 of the building 2, comprises:
- the planted filter 62 may comprise a single filter unit 622, or possibly at least two filter units 622, for example arranged and supplied in parallel, or then arranged in series.
- the phytopurification treatment module 6 positioned on the roof 21 makes it possible to improve the aesthetics of the local urban landscape and to benefit from a functional green space easily accessible by an operator, and possibly by residents, without encroaching on spaces in the building useful for other purposes.
- the phytopurification treatment module 6 on the roof makes it possible to recover and treat, in addition to EP pretreated water, also rainwater.
- Rainwater harvesting is consistent with positive and eco-responsible management of water available to humans and thus contributes to preserving water resources.
- the treatment module 6 comprises at least one planted filter 62 with saturated-unsaturated flow allowing biological purification in fine granular media.
- the operating principle of the planted filter of module 6 lies in hydraulic management (filling/emptying) of the basin containing it, which results in an alternation of saturation phases (anaerobic) and oxygenation phases (aerobic).
- the planted filter 62 comprises either a single block 622 as shown in Figures 3 and 4, or at least two filter blocks 622 positioned in parallel and supplied in parallel, the whole being installed in a single compartmentalized basin thus forming a unitary module 6, or in several separate basins, thus constituting a planted filter with a modular structure, easily adaptable to varying needs.
- the filtration of the pretreated water EP is carried out through the filter mass(es) 622.
- the filter mass(es) 622 is preferably made up of a filtration media based on inert aggregates (for example based on coal), of particle sizes different, in which plants 623 helophytes develop predominantly or exclusively, such as for example reeds.
- filtration media forming the or each filter mass 622 that is to say essentially inert aggregates, as well as the nature of the plants 623, can be defined by those skilled in the art according to the quantity of water to be treated, the desired filtration capacities and the quality of the desired EE purified water.
- the principle of water treatment by phytopurification is based on the development of a dense network of rhizomes of helophytic plants which makes it possible to provide, to the filter bed(s) 622, a growth support microbial participating in the water purification process.
- the presence of helophyte plants 623 plays a mechanical role in unclogging the surface of the filter bed and promotes the percolation of pretreated water EP coming from the dispersion means 61 into the inert aggregate filtration media.
- the EP pretreated water will be drained along the roots towards the base of the filter bed 622 concerned, while the suspended solids will be retained on the surface, then mineralized in aerobic conditions during the emptying phases of the bed in order to serve as a nutrient. to plants.
- microorganisms of the rhizosphere have a biological purifying action, they:
- the structure of the phytopurification treatment module 6 through the planted filter 62 with its filter bed(s) 622 planted with plants 623 makes it possible to transform pretreated water EP into purified water EE.
- a planted filter 62 with saturated-unsaturated flow is chosen which is made up either of a single filter block 622 planted with plants 623, or at least two filter beds 622 planted with plants 623 hydraulically separated, arranged in parallel (forming two sub-modules arranged constructively and functionally in parallel and together corresponding to a floor) and operating alternately.
- at least two planted filters 62, forming two stages of module 6 arranged in series, can be considered depending on the treatment and operation sought.
- the implementation of the planted filter 62 with saturated-unsaturated flow advantageously relies on a supply of tarpaulins (sequentially alternating) and homogeneous on the surface of the filter mass 622, or of one or the other of the two masses filters 622 arranged in parallel with the same stage of the planted filter 62 (which may possibly include at least two filtration stages in series).
- the pretreated water EP arrives via the dispersion means 61 alternately on one or the other of the filter masses 622. Consequently, with a planted flow filter saturated-unsaturated, one of the filter masses 622 will be in the “rest phase” without discharge of EP pretreated water, while the other will be in the “supply phase” with a continuous discharge of EP pretreated water. For a planted filter 6 with a single filter bed 622, these two phases follow one another sequentially.
- the pretreated water EP percolates through the filter media of aggregates and rhizome for a predefined residence time to exit in the form of purified water EE.
- the other filter unit 622 is in the “rest phase”, that is to say emptying, without a supply of EP pretreated water.
- the “rest phase” of a filter mass 622 allows the suspended matter accumulated during a previous “feeding phase” to dry and mineralize.
- the rest phase is necessary to promote the process of regeneration of its filtering properties by ensuring that the aerobic treatment conditions of the filter bed concerned are maintained.
- the two phases power supply and rest necessarily follow one another sequentially.
- the “rest phases” and the “feeding phases” with a defined “residence time” are important to its proper functioning, its reliability and its durability in the time, and result in an alternation of saturation phases (anaerobic) and oxygenation phases (aerobic).
- the “residence time” corresponds to the duration necessary to treat the pretreated water EP and transform it into purified water EE, that is to say the duration of exposure to EP pretreated water with the 622 filter mass depending on its size and the content of the filter media (granulate + plant rhizomes).
- the phytopurification treatment module (6) comprises a single planted filter (62) which comprises a single filter bed (622) planted with plants (623). and subjected to alternating phases of filling and partial or total emptying.
- the phytopurification treatment module (6) comprises at least two planted filters (62), either arranged in series and thus forming two successive filtration stages of the module (6), either arranged and supplied in parallel, the two planted filters (62) then being subjected alternately to successive phases of filling and partial or total emptying.
- the or each planted filter (62) of the phytopurification treatment module (6) comprises at least two filter beds (622) planted with plants (623), which are positioned in parallel and supplied with parallel, these filter masses (622) being installed in a single compartmentalized basin thus forming a planted filter (62) with a unitary structure, or in several separate basins, thus constituting a planted filter (62) with a modular structure, the different filter masses being advantageously fed and drained alternately between them.
- the latter can include at least one phytopurification basin with a total height or depth of approximately 30 cm which contains a planted filter 62 which constitutes the biological treatment sector.
- the bottom of the filter block 622 of said filter is preferably with zero slope.
- the filter bed 622 also forming a growth substrate for the planted plants 623, has a height or depth of approximately 20 cm and incorporates added, inert, small mineral aggregates.
- the planted filter 62 is supplied with pretreated gray water EP via a specific irrigation system (dispersion means 61 supplied by the transfer means 5 over the entire surface of the planted filter 62.
- maximum loading height is in this example 20 cm (maximum height of the water level in the filter bed). Beyond this height, an overflow system 63 allows evacuation to the wastewater network (network B) excess water generated by unusually high supply or intense rainfall events.
- the filter bed 62 is vegetated with plants 623 belonging to hardy marsh species, called macrophytes of the helophyte type, selected for example from Iris, Carex, Rushes, Common Loosestrife, Meadowsweets. These particular species, mainly emerging with their feet in the water, accept regular variations in water height.
- the filter mass 62 is fed intermittently to promote its reoxygenation, the residence time of the water in the filter mass 62 is advantageously at least 4 hours.
- the transfer by gravity of the purified water EE leaving the filter mass 62 towards the storage tank 8 can, for example, be controlled either actively by the intermittent opening of a controlled evacuation 7, 71, or passively by means of of a hydraulic device of the so-called “bell siphon” type.
- the filter mass 62 can include plants 623 fixed aerobically on a fine support, for example 20 cm of pozzolan with a particle size of 3/6 mm.
- the flow is of the combined type, namely vertical (upper fraction of the filter bed 62) and horizontal (lower fraction of the filter bed 62).
- the supply of EP pretreated gray water is carried out by successive controlled tanks, the emptying being controlled for example by means of a controlled or programmed solenoid valve 71.
- the alternating operation of the filter (in particular with the absence of power during the night, associated with saturation and emptying phases) leads to the control of the development of the biomass of the planted filter 62.
- the dispersion means 61 of the phytopurification pretreatment module 6 carry out the spreading (extended surface sprinkling) of the pretreated water EP on the filter bed 622 in the “feeding phase”.
- the spreading also contributes to the oxygenation of the filter media which promotes the growth of microorganisms in the rhizosphere and contributes to the elimination of pathogenic microorganisms and pollutants. some water.
- the treatment installation 1 comprises means for managing and controlling the supply and spreading of the pretreated water EP on the filter mass(es) 622 of the phytopurification treatment module 6.
- the phytopurification treatment module 6 In order to compensate for a rainy episode and the accumulation of rainwater in the filter bed(s) 622, in addition to the pretreated water EP, the phytopurification treatment module 6 also includes an overflow means 63, visible on Figure 4 and shown specifically in Figure 5.
- This overflow means 63 allows passive management of the quantity of water volume present within the filtering masses 622.
- the overflow means 63 makes it possible either to store the excess water until the end of the rainy episode, or to evacuate it to the sanitation network external b.
- the overflow means 63 is in the form of a sealed hollow box (or chute) placed in the module 6 and forming a retention dam at the outlet of said module 6. It is equipped with orifices located at one or more predefined heights and calibrated to regulate the evacuation and also prevent the penetration of residues, in particular such as leaves, substrate or root debris, into the box.
- the means 7 for collecting and conveying the purified water EE are present at the outlet of the at least two filtering masses 622, preferably in outlet of the overflow means 63 collecting the water having passed through said filtering masses 622.
- These collection and routing means 7 advantageously include means for managing the residence time 71 of the pretreated water EP within the phytopurification treatment module 6.
- the collection and conveying means 7 comprise collection drains with slots facing downwards of the phytopurification treatment module 6, possibly connected to ventilation chimneys 72 and a solenoid valve 71 controlled to manage the residence time of the pretreated water EP in the filter bed 622.
- Opening the solenoid valve 71 makes it possible to transfer the purified water EE produced from the phytopurification treatment module 6 to the storage means 8 of the tank type. Closing the solenoid valve 71 makes it possible to conserve the water within the phytopurification treatment module 6 at least for the residence time necessary for the purification of the pretreated water EP via the filter bed 622.
- the residence time management means 71 for example of the solenoid valve 71 type, are associated with mechanical filtration means, for example of the sieve filter type, so as to avoid the spilling into the storage means 8 of purified water EE comprising solid compounds coming in particular from the filter mass 622.
- the storage means 8 comprises a storage tank which is arranged at the outlet of the phytopurification treatment module 6 and which is equipped with a microbiological disinfection means 9 allowing the transformation of the EE purified water leaving module 6 as treated water AND respecting the criteria of the health regulations in force locally, taking into account the intended use.
- the storage means 8 comprises a means for managing the volume and regulating the water supply.
- the means for managing the volume and regulating the supply of the quantity of water comprises a pressure switch intended to manage the supply of the storage means 8 either with purified water EE by phytopurification, or by C water from the city network.
- the storage means 8 must include a sufficient volume of water for the actuation of the microbiological disinfection means 9, and therefore, in the event of insufficient volume, the pressure switch makes it possible to supplement the storage means 8 with water. water C from the public drinking water network, or even from another source, natural or not.
- the microbiological disinfection means 9 comprises a means 91 for injecting a disinfection solution and a means 92 for controlling the degree of disinfection 92 of EE purified water.
- the injection means 91 comprises a piston or pump for injecting a disinfection solution which consists, for example, of hydrogen peroxide in the form of hydrogen peroxide solution.
- a disinfection solution which consists, for example, of hydrogen peroxide in the form of hydrogen peroxide solution.
- the oxygenation of the purified water EE contained in the storage means 8 allows its immediate disinfection so as to obtain treated water AND of microbiological quality meeting the standards of the ARS, for its use in flushing toilets in the building 2 or in the green space watering network.
- the means 92 for controlling the disinfection of purified water EE comprises a means of continuous verification of the operating state of the means 91 for injecting a disinfection solution.
- the means of continuous verification of the operating state of the injection means 91 consists of a module for controlling the volume of disinfection solution injected into the storage means 8, which is equipped with a device reporting in the event of insufficient quantity of disinfection solution in the storage means 8.
- the disinfection control means 91 makes it possible to guarantee adequate treatment of the purified water EE to obtain treated water AND of microbiological quality meeting the standards in force, for its revaluation in the supply circuit B1 flushing toilets or watering crops for example.
- the microbiological quality of the treated water ET is guaranteed by the proper operation, preferably continuously, of the microbiological disinfection means 9.
- the permanent injection of a disinfection solution in the storage means 8 makes it possible to disinfect and treat the purified water EE to transform it into treated water ET. Consequently, the microbiological quality of the ET treated water is ensured by the disinfection control means 92 which permanently monitors and verifies the proper functioning of the injection means 91 so as to adjust, in the event of a failure, the volume of injection solution.
- the microbiological disinfection means 9 is configured to ensure a microbiological quality of the treated water (ET) conforming to the criteria of the health regulations in force taking into account the intended use.
- the means 10 of discharge and/or recirculation may comprise a means of additional verification of the microbiological quality of the water processed AND.
- the means of additional verification of the microbiological quality of the treated water ET consists of at least one means of taking water samples, present on the distribution means 10. Taking samples allows microbiological analysis of treated water to verify that it meets standards.
- the sampling means is positioned upstream of a multi-way valve connected both to the external sanitation network B and to the circuit B1 supplying the toilet flushes or watering devices of the building 2, so as to be able to direct the water according to the sample result selectively towards the appropriate network, with of course a preference for circuit B1 if the normative conditions are respected.
- the water is directed to circuit B1 for supplying the toilet flushes or devices watering of building 2 by a multi-way valve.
- the means 10 of discharge and/or recirculation comprise a network of pipes configured to direct the treated water AND towards the ( s) supply circuit(s) B1 for toilet flushes in building 2 and/or at least one device for watering plants and/or green spaces located in or around said building 2, and/or towards the external sanitation or wastewater evacuation network B.
- the means 10 for spilling and/or recirculation further comprise at least upstream of circuit B1 for supplying toilet flushes and/or local watering devices, additional means of mechanical filtration 101.
- the additional means of mechanical filtration 101 are for example in the form of a sieve filter (for example filtration at 150 microns) and/or a zeolite filter (for example filtration at 50 microns), visible in Figure 2.
- the additional mechanical filtration means 101 are present at least upstream of said supply circuit B1 for flushing toilets in building 2 or for watering devices in green spaces, so as to guarantee by an additional means the quality of the water treated AND intended for this use.
- the pre-treatment module 4 of which the or a storage means 42 of the waste water EM preferably forms part, and/or the storage means 8 of the purified water (EE), includes at least one overflow evacuation system.
- the overflow evacuation system makes it possible to evacuate excess water to the sanitation network B so as to avoid saturation or overflow of the storage means 42 or 8 and a malfunction of the treatment facility 1.
- the treatment installation 1 therefore makes it possible to transform EM wastewater from a building into treated water AND of sufficient microbiological quality for its use in a circuit B1 for supply by recirculation, local equipment, such as flushing the toilets of building 2 concerned or watering devices for green spaces, by minimally distorting the environment outside the building, by favoring eco-responsible means which contribute to the depollution of the atmosphere in the environment urban.
- the subject of the invention is also, as shown schematically in Figure 1, a building 2, in particular a tertiary or residential building, catering or collective housing, characterized in that it comprises a treatment installation 1 EM wastewater, in particular or exclusively of the household wastewater type, produced by its occupants, as described above.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23776355.2A EP4590644A1 (fr) | 2022-09-23 | 2023-09-22 | Installation de traitement des eaux usées et bâtiment comportant une telle installation |
| CA3266950A CA3266950A1 (fr) | 2022-09-23 | 2023-09-22 | Facility for treating wastewater and building comprising such a facility |
| CN202380067347.5A CN119998239A (zh) | 2022-09-23 | 2023-09-22 | 用于处理废水的设施和包括这种设施的建筑物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2209671 | 2022-09-23 | ||
| FR2209671A FR3140081A1 (fr) | 2022-09-23 | 2022-09-23 | Installation de traitement des eaux usées et bâtiment comportant une telle installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024062095A1 true WO2024062095A1 (fr) | 2024-03-28 |
Family
ID=84331241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/076213 Ceased WO2024062095A1 (fr) | 2022-09-23 | 2023-09-22 | Installation de traitement des eaux usées et bâtiment comportant une telle installation |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4590644A1 (fr) |
| CN (1) | CN119998239A (fr) |
| CA (1) | CA3266950A1 (fr) |
| FR (1) | FR3140081A1 (fr) |
| WO (1) | WO2024062095A1 (fr) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306199A3 (cs) | 1998-02-27 | 2000-02-16 | Boehringer Ingelheim Pharmaceuticals, Inc. | Chimérní gen |
| US6277274B1 (en) | 1999-04-16 | 2001-08-21 | Larry Steven Coffman | Method and apparatus for treating stormwater runoff |
| US20090001002A1 (en) | 2004-05-07 | 2009-01-01 | Hartmut Bauer | Wastewater Purification Plant By Means of Plants |
| US7754079B2 (en) | 2004-05-07 | 2010-07-13 | Deere & Company | Plant-based sewage treatment system for purifying wastewater |
| FR2942791A1 (fr) | 2009-03-09 | 2010-09-10 | Voisin J | Dispositif d'assainissement compact par filtre plante, notamment du type plante de roseaux |
| CZ306199B6 (cs) * | 2015-01-26 | 2016-09-21 | Liko-S, A. S. | Způsob tepelné stabilizace objektů opatřených z vnějšku zelenou vegetací a zařízení k provádění tohoto způsobu |
| WO2021018629A1 (fr) | 2019-08-01 | 2021-02-04 | Aquatiris | Ouvrage d'assainissement des eaux usées |
| FR3105208A1 (fr) | 2019-12-24 | 2021-06-25 | Ecole Nationale Des Ponts Et Chaussees | Système de traitement des eaux grises d’une habitation ou d’un immeuble d’habitations |
-
2022
- 2022-09-23 FR FR2209671A patent/FR3140081A1/fr active Pending
-
2023
- 2023-09-22 CN CN202380067347.5A patent/CN119998239A/zh active Pending
- 2023-09-22 EP EP23776355.2A patent/EP4590644A1/fr active Pending
- 2023-09-22 CA CA3266950A patent/CA3266950A1/fr active Pending
- 2023-09-22 WO PCT/EP2023/076213 patent/WO2024062095A1/fr not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306199A3 (cs) | 1998-02-27 | 2000-02-16 | Boehringer Ingelheim Pharmaceuticals, Inc. | Chimérní gen |
| US6277274B1 (en) | 1999-04-16 | 2001-08-21 | Larry Steven Coffman | Method and apparatus for treating stormwater runoff |
| US20090001002A1 (en) | 2004-05-07 | 2009-01-01 | Hartmut Bauer | Wastewater Purification Plant By Means of Plants |
| US7754079B2 (en) | 2004-05-07 | 2010-07-13 | Deere & Company | Plant-based sewage treatment system for purifying wastewater |
| FR2942791A1 (fr) | 2009-03-09 | 2010-09-10 | Voisin J | Dispositif d'assainissement compact par filtre plante, notamment du type plante de roseaux |
| CZ306199B6 (cs) * | 2015-01-26 | 2016-09-21 | Liko-S, A. S. | Způsob tepelné stabilizace objektů opatřených z vnějšku zelenou vegetací a zařízení k provádění tohoto způsobu |
| WO2021018629A1 (fr) | 2019-08-01 | 2021-02-04 | Aquatiris | Ouvrage d'assainissement des eaux usées |
| FR3105208A1 (fr) | 2019-12-24 | 2021-06-25 | Ecole Nationale Des Ponts Et Chaussees | Système de traitement des eaux grises d’une habitation ou d’un immeuble d’habitations |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4590644A1 (fr) | 2025-07-30 |
| CN119998239A (zh) | 2025-05-13 |
| FR3140081A1 (fr) | 2024-03-29 |
| CA3266950A1 (fr) | 2024-03-28 |
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