EP2582634A1 - Traitement de depollution d'une eau contaminee par des micro-polluants et/ou des polluants emergents, notamment par des composes organochlores - Google Patents
Traitement de depollution d'une eau contaminee par des micro-polluants et/ou des polluants emergents, notamment par des composes organochloresInfo
- Publication number
- EP2582634A1 EP2582634A1 EP11731253.8A EP11731253A EP2582634A1 EP 2582634 A1 EP2582634 A1 EP 2582634A1 EP 11731253 A EP11731253 A EP 11731253A EP 2582634 A1 EP2582634 A1 EP 2582634A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- planted
- contaminated
- water
- tetrachlorobenzene
- trichlorobenzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F3/02—Aerobic processes
- C02F3/04—Aerobic processes using trickle filters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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 relates to a method for treating water contaminated with micro-pollutants or emerging pollutants, preferably of the organochlorine type, with a solution of planted organic filters.
- micro-pollutants The treatment of pollutants called micro-pollutants or emerging is a recent concern, less than ten years, if only because the techniques of analysis and measurement of this type of pollution are still under development while the identification of the 200 substances at risk and their effects are just beginning to be known for human health.
- activated carbon is used in granular form in a gravity bed or under pressure with a minimum contact time of 5 to 60 minutes. This results in the use of large volumes of activated carbon to treat several hundred m 3 per day.
- the adsorption capacity of the filter is limited to 20% or even 30% compared to the mass of coal.
- the materials of these filters must be completely renewed at a frequency to be determined (several weeks to several months) according to volumes and concentrations treated; used media must be processed. It is therefore an industrially acceptable solution preferentially for small flows.
- a second solution in full development is based on in situ biodegradation techniques (bioremediation).
- bioremediation uses the natural ability of the endogenous microflora to degrade toxic substances.
- biodegradation potential is not sufficient and when the conditions of the endogenous biodegradation are not met, stimulation of this activity is performed by bio-increase.
- a supply of nutrients increasing the development of aerobic bacteria and / or introduction of adapted bacterial strains is implemented.
- soybean oil, ethanol, methanol, cellulose or glucose it is possible to mention soybean oil, ethanol, methanol, cellulose or glucose.
- organochlorine compounds tetrachlorethylene, trichlorethylene, trichloroethane and carbon tetrachloride
- concentration of organochlorine compounds could be reduced from 190 to 88 mg / l for a polluted layer after 5 years of treatment, ie a reduction of around 50%.
- organochlorine compounds it is possible to cite the following bacterial species: Hydrogenophaga flava, Clostridiu bifermantans, Cehalospirillum mutivorans, Oesulfomonile tiedjei, and Lesulfito bacterium.
- the bacteria of the genus Rhodococcus or the species Nitrosomonas europaea and Pseudomonas putida are most often used.
- the third family of solutions is traditional phytoremediation through the use of higher plants of poplar and eucalyptus type. Generally, these plants are used either as hydraulic barriers around contaminated sites to block the diffusion of pollutants, or as an area for spreading water to be cleaned on site.
- the sizing of these phytoremediation solutions is based on the evapotranspiration capacities of these plants of about 4 to 6 liters per m 2 per day during a period of full plant growth (between 5 and 15 years after planting).
- the most used plants because of their natural resistance to the toxicity of different salt forms are the white poplar (P pu / us alba), the Eucalyptus (Eucalyptus camaldulensii) and the Tamarisk (Tamarix parviflovà).
- Another treatment solution is the creation of artificial "subflow" type wetlands using traditional aquatic plants: reeds ⁇ Phragmites austral / s, Typha latifolià and Rushes (especially of the genus Scirpus).
- the Applicant has highlighted a new solution by organic planted filter whose efficiency exceeds that of the three families of traditional treatment solutions.
- the permanent planting support present does not saturate with respect to the carbon filter, has a rhizosphere with naturally multiple bacterial strains unlike the targeted solutions of bioremediation, and does not present the limits.
- the method according to the invention thus makes it possible to provide a much more efficient solution in terms of volumes processed per hour and in terms of the durability of the structure used.
- the process according to the invention thus makes it possible to treat from 50 to 100 liters per m 2 / h, or even more, with a very high pollutant abatement rate (greater than 80% for all the compounds tested) and to have available an installation that does not require a substrate change for several years.
- the treatment principle is based on at least one planted filter comprising various support materials comprising all or part of organic material.
- the planted organic substrate is composed of non-soluble compost and aggregates, which compost can be made to measure.
- the method according to the invention comprises the use of the combination of several planted filters.
- the present invention thus relates to a method for the depollution of water contaminated with micropollutants or emerging pollutants characterized in that it comprises a step of introducing said contaminated water into a device comprising a planted organic filter.
- vertical filtration which planted organic filter comprises: - an inlet for the contaminated water to be treated,
- said means Filtration filtration e ⁇ take the form of a planted organic substrate composed of compost and insoluble aggregates to maintain a permeability of said organic substrate of at least 40 liters per hour and per m 2 , preferably from minus 70 liters per hour and m 2 , and particularly preferably at least 100 liters per hour and per m 2 or more.
- the process according to the invention which is both simple and economical, is based on a plant-grown organic filter and may furthermore exhibit the characteristics of the depollution process as described in PCT International Application WO 2006/030164.
- organic filter planted vertical filtration means an organic filter for the depollution of contaminated water that runs vertically.
- Micropollutants or emerging pollutants are preferably the pollutants described in Directive 2008/105 / EC of the European Parliament and of the Council of 16 December 2008 establishing environmental quality standards in the field of water, namely Alachlor. , anthracene, atrazine, benzene, brominated diphenyl ethers, cadmium and its compounds (depending on the hardness classes of water), carbon tetrachloride, C10-13 chloroalkanes, chlorfenvinphos, chlorpyrifos ( ethylchlorpyrifos), cyclodiene pesticides, aldrin, dieidrin, endrin, isodrine, total ùT, para-para-DDT, 1,2-dichloroethane, dichloromethane, di (2-ethylhexyl) phthalate (DEHP), diuron, lendosulfan, fluoranthene, hexachlorobenzene, hexachlorobutadiene, he
- micropollutants or emerging pollutants means a compound selected from the group comprising the dichloromethane, chlorobenzene, 1,2 dichlorobenzene (1,2 bCB), 1,3 dichlorobenzene (1,3 bCB), 1,4 dichlorobenzene (1,4 DCB), 1,2 dichloroethane (1,2 DCE), 1,2 cis dichloroethylene (1,2 cis DCE), 1,2 trans dichloroethylene (1,2 ⁇ rans bCE), alpha hexachlorohexane (HCH Alpha), beta hexachlorohexane (HCH Beta), delta hexachlorohexane (HCH Delta), hexachlorohexane gamma or lindane (HCH Gamma), hexachlorobenzene, hexachlorobutadiene, hexachloroethane, mono chlorobenzene, pentachlorobenzene,
- said micropollutants or emerging pollutants are organochlorine compounds.
- organochlorine compounds an organic synthetic compound comprising at least one chlorine atom and optionally used as a solvent, pesticide, insecticide, fungicide, refrigerant or as an intermediate synthesis molecule in chemistry and pharmacy.
- organochlorine compounds By way of particularly preferred example of such organochlorine compounds, mention may be made of 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, 1,3,5-trichlorobenzene, 1,2,4-trichlorobenzene, 1,2,3 trichlorobenzene, 1,2,3,5 tetrachlorobenzene, 1,2,4,5 tetrachlorobenzene, 1,2,3,4 tetrachlorobenzene, hexachlorocyclohexane alpha, hexachlorocyclohexane gamma, hexachlorocyclohexane beta and hexachlorocyclohexane delta.
- the process according to the invention makes it possible to eliminate more than 85% of the organochlorine compounds described above, and even more than 95% for the majority of them.
- said insoluble aggregates mentioned above are chosen from pozzolan, flint and siliceous sands.
- said insoluble aggregates correspond to pozzolan.
- compost is meant preferably a compost as defined by the NF U44-051 standard.
- the characteristics defined by this standard can be obtained simply with a minimum composting time of 3 years of plant debris or with brown peat.
- said planted organic filter is an organic filter planted with bank plants selected from the group comprising Phrag ites australis, Typha angustifolia, Typha latifolia and Iris pseudacorus.
- said bank plant is a common reed or Phragmites australis.
- the density of bank plants is between 5 and 15 plants / m 2 , preferably this density is 10 plants / m 2 on average.
- the thickness of the organic substrate is between 300 and 1500 mm depending on the pollution to be performed, preferably between 300 and 700mm.
- said device further comprises at least one organic filter, whether or not planted, which organic filter is vertical or horizontal, and is arranged upstream of the vertical-filtering organic filter described above.
- the device may comprise a combination of the type: a non-planted organic filter with vertical filtration and then a vertical filter planted vertical filtration; an organic filter planted with horizontal filtration followed by a plant-grown filter with vertical filtration; or an organic filter planted vertically followed by an organic filter planted vertical filtration.
- the device will comprise a vertical filter planted vertically followed by a vertical filter planted vertically.
- the device comprises several filter stages in parallel to organize rest periods and feeding times, in particular in order to have a thorough biodegradation of all the organochlorine compounds treated.
- the alternation of aerobic and anaerobic periods not only promotes the biodegradation of pollutants but also reduces stress for plants and also promotes their development.
- the device may therefore comprise, in particular upstream, two unplanted organic filters and then a stage of two organic filters planted with vertical filtration.
- the combination of the planted organic substrate and the rhizosphere allows a particularly important development of many colonies of all very active bacteria, in particular in the degradation of organochlorine compounds, which combination can make it possible to explain the particularly high performance of the device.
- this combination allows the establishment of stationary factors very stable over time including pH and redox potential.
- the microorganisms are stimulated in an anaerobic environment at the origin of the formation of an acid medium, hence the interest of starting the treatment queue with a horizontal filter.
- the combination of a horizontal filtration organic filter and a vertical filtration organic filter makes sense.
- the outlet for treated contaminated water advantageously takes the form of one or more recovery drains, which are well known to those skilled in the art.
- the outlet is positioned in a draining layer consisting of pebbles, gravel or other equivalent draining material.
- its thickness is chosen between 100 and 1500 mm, preferably between 150 and 1000 mm and, particularly preferably, between 200 and 500 mm.
- the planted organic filter is advantageously isolated from the soil by means of sealing means, which prevent the infiltration of pollutants into the natural environment and are well known to those skilled in the art.
- sealing means may in particular take the form of a geomembrane.
- the planted organic filter further advantageously comprises an aeration system, which preferably connects the draining layer to the surface.
- This aeration system makes it possible to improve the efficiency of the periods of dewatering in the framework of the organization of the successions of irrigation / drying cycles described in PCT international application WO 2006/030164.
- This aeration system can take the form of vents connected to the base of the organic filter planted by means of ducts or ducts. Said aeration system may in particular be connected to the recovery drains arranged in the draining layer.
- this aeration system takes the form of vents connected on the one hand to the organic substrate and, on the other hand, to the recovery drains arranged in the draining layer at the base of the planted organic filter and this by means of ducts. or pipes.
- the planted organic filter may comprise one or more wa es associated with the outlet and / or the inlet for the water contaminated to clean up. These different valves improve the supply and drainage of the planted organic filter.
- these different valves make it possible to organize the succession of irrigation / drying cycles (anaerobic / aerobic period) of the process as described in PCT International Application WO 2006/030164 in order to optimize the degradation of pollutants. by the microorganisms of the rhizosphere.
- these valves make it possible to organize a distribution of the irrigation / drying periods corresponding to a ratio of 2/1 to 1/50, preferably of 1/1 to 1/20, for example of 1/2 to 1/20, and particularly preferably from 1/3 to 1/20.
- these different valves can modulate the flow so as to organize the continuous supply of the device according to the invention.
- a second object of the invention is the use of a device as described above for the depollution of water contaminated with micropollutants or emerging pollutants as defined above.
- the present invention aims at the use of such a device for the depollution of water contaminated with micropollutants or with emerging pollutants, preferably water contaminated with organochlorine compounds as described above.
- Figure 1 illustrates the structure of the three types of devices tested for the treatment of water contaminated by micropollutants or emerging pollutants.
- the devices with a first vertical organic filter incorporate a polluted water inlet (1) opening on the filter (3) causing the effluents to be treated at the first vertical organic filter.
- the wastewater effluent then passes through the organic substrate (4 and 15) which, in the case of the planted filter, is planted with semi-aquatic plants (16), in this case Phragmifes australis.
- This organic substrate consists of a compost layer of at least 40 cm through which the effluents pass before arriving in a draining layer (5 and 14), which in this case is nearly 30 cm thick.
- This draining layer (5 and 14) comprises non-soluble aggregates and also comprises within it an outlet drain (6 and 17) associated with an aeration vent to allow good oxygenation of the entire volume of the filter.
- This outlet drain makes it possible to evacuate the treated water towards the second vertical organic planted filter whose operation is the same as that previously described, except that its outlet drain (17) potentially constitutes an exit route for the device.
- the device with a first horizontal organic filter slightly differs from the previous devices in that it incorporates an arrival of the effluent opening into a bedding for diffusion to the filter head (8).
- the effluents then pass through an organic substrate (9) as described above but with a thickness of 70 cm.
- This organic substrate is also planted with semi-aquatic plants (11), again preferably Phragmifes australis.
- the effluents then arrive in a draining layer (10) comprising within it an outlet drain (12) for discharging the treated water to the second vertical organic planted filter whose operation is the same as that previously described, except that its output drain (17) is potentially an output channel of the device.
- Tables I and II present the results obtained for devices having two vertical organic filters as described above, with respectively a first planted filter (Table I) or not (Table II) and for the reduction in highly contaminated water (more ten times the authorized thresholds) of different organochlorines over a period from April 29, 2009 to February 5, 2010.
- the results obtained with the device incorporating a first horizontal filtration filter are about 10% lower in terms of abatement. compared to those obtained with the other two devices.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Processing Of Solid Wastes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Removal Of Specific Substances (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1002564A FR2961504A1 (fr) | 2010-06-17 | 2010-06-17 | Traitement de depollution d'une eau contaminee par des micro-polluants et/ou des polluants emergents, notamment pär des composes organochlores |
PCT/EP2011/002932 WO2011157406A1 (fr) | 2010-06-17 | 2011-06-15 | Traitement de depollution d'une eau contaminee par des micro-polluants et/ou des polluants emergents, notamment par des composes organochlores |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2582634A1 true EP2582634A1 (fr) | 2013-04-24 |
Family
ID=43607959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11731253.8A Withdrawn EP2582634A1 (fr) | 2010-06-17 | 2011-06-15 | Traitement de depollution d'une eau contaminee par des micro-polluants et/ou des polluants emergents, notamment par des composes organochlores |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130105387A1 (fr) |
EP (1) | EP2582634A1 (fr) |
CN (1) | CN102947230A (fr) |
BR (1) | BR112012032274A2 (fr) |
FR (1) | FR2961504A1 (fr) |
WO (1) | WO2011157406A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9469981B2 (en) | 2009-12-22 | 2016-10-18 | Oldcastle Precast, Inc. | Fixture cells for bioretention systems |
US8911626B2 (en) | 2009-12-22 | 2014-12-16 | Oldcastle Precast, Inc. | Bioretention system with internal high flow bypass |
EP2716607B1 (fr) * | 2011-05-24 | 2019-11-13 | Sung Il En-Tech Co. Ltd. | Système d'épuration d'eau pour marais artificiel hybride, dispositif de traitement des eaux usées l'utilisant et dispositif de purification non ponctuelle naturelle permettant de purifier simultanément de l'eau de rivière et de l'eau de lac |
US9512606B2 (en) | 2011-08-21 | 2016-12-06 | Oldcastle Precast, Inc. | Bioretention swale overflow filter |
US9506233B2 (en) | 2013-06-14 | 2016-11-29 | Oldcastle Precast, Inc. | Stormwater treatment system with gutter pan flow diverter |
WO2015171570A1 (fr) | 2014-05-05 | 2015-11-12 | Agri-Tech Producers, Llc | Procédé de production de biomasse et de bioproduit de remédiation combiné |
AT14441U1 (de) * | 2014-10-07 | 2015-11-15 | Heinz Gattringer | Vertikale Pflanzenkläranlage zur Reinigung von Grauwasser und Industrieabwässer |
US10118846B2 (en) | 2014-12-19 | 2018-11-06 | Oldcastle Precast, Inc. | Tree box filter with hydromodification panels |
US10563392B2 (en) * | 2015-08-11 | 2020-02-18 | Mmt, Inc. | Stormwater biofiltration system and method |
FR3065720B1 (fr) | 2017-04-28 | 2020-10-30 | Suez Groupe | Zone humide artificielle dimensionnee pour l'elimination de polluants |
WO2019079479A1 (fr) | 2017-10-17 | 2019-04-25 | Oldcastle Precast, Inc. | Système de gestion d'eau de pluie à dérivation interne |
CN109292982B (zh) * | 2018-09-11 | 2021-03-23 | 山东建筑大学 | 低浓度重金属废水的模块化复合深度处理系统及运行方法 |
FR3109094A1 (fr) * | 2020-04-14 | 2021-10-15 | Maxime Duhamel | Processus de traitement et dégradation des micropolluants organiques par fermentation des plantes |
MA49998B1 (fr) | 2020-06-08 | 2022-03-31 | Univ Sidi Mohamed Ben Abdellah | Dispositif de traitement des eaux usées par filtres vétiver zizania et biochar à flux ascendant à aération forcé par cannesd'injection d'oxygène réglables |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7510649B1 (en) * | 2004-01-09 | 2009-03-31 | Ronald Lavigne | Top loading vertical flow submerged bed wastewater treatment system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE486818T1 (de) * | 2004-09-16 | 2010-11-15 | Phytorestore | Verfahren zur behandlung von schadstoffen durch pflanzenauslaugung |
FR2893607B1 (fr) * | 2005-11-24 | 2008-02-22 | Agro Environnement Sa | Systeme et procede d'epuration des eaux usees |
-
2010
- 2010-06-17 FR FR1002564A patent/FR2961504A1/fr not_active Withdrawn
-
2011
- 2011-06-15 CN CN2011800299268A patent/CN102947230A/zh active Pending
- 2011-06-15 WO PCT/EP2011/002932 patent/WO2011157406A1/fr active Application Filing
- 2011-06-15 BR BR112012032274A patent/BR112012032274A2/pt not_active IP Right Cessation
- 2011-06-15 EP EP11731253.8A patent/EP2582634A1/fr not_active Withdrawn
- 2011-06-15 US US13/703,752 patent/US20130105387A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7510649B1 (en) * | 2004-01-09 | 2009-03-31 | Ronald Lavigne | Top loading vertical flow submerged bed wastewater treatment system |
Also Published As
Publication number | Publication date |
---|---|
BR112012032274A2 (pt) | 2016-11-29 |
WO2011157406A1 (fr) | 2011-12-22 |
FR2961504A1 (fr) | 2011-12-23 |
CN102947230A (zh) | 2013-02-27 |
US20130105387A1 (en) | 2013-05-02 |
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Inventor name: JACQUET, THIERRY Inventor name: BAUDRIER, FREDERIK Inventor name: ANTOINETTE, YVES Inventor name: FRESNEAU, ALEXANDRA Inventor name: PILAS-BEGUE, AGNES |
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