FR2662435A1 - Process for the regeneration of spent or dirty water by overpressure and oxygenation - Google Patents
Process for the regeneration of spent or dirty water by overpressure and oxygenation Download PDFInfo
- Publication number
- FR2662435A1 FR2662435A1 FR9006960A FR9006960A FR2662435A1 FR 2662435 A1 FR2662435 A1 FR 2662435A1 FR 9006960 A FR9006960 A FR 9006960A FR 9006960 A FR9006960 A FR 9006960A FR 2662435 A1 FR2662435 A1 FR 2662435A1
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- France
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- water
- tank
- called
- purifying
- pressure
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 9
- 238000006213 oxygenation reaction Methods 0.000 title description 2
- 230000008929 regeneration Effects 0.000 title 1
- 238000011069 regeneration method Methods 0.000 title 1
- 238000000746 purification Methods 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims abstract description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000010908 decantation Methods 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 230000000813 microbial effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 244000052616 bacterial pathogen Species 0.000 claims description 2
- 230000006378 damage Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000003651 drinking water Substances 0.000 claims 1
- 235000020188 drinking water Nutrition 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 235000019645 odor Nutrition 0.000 claims 1
- 239000008213 purified water Substances 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000003643 water by type Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3221—Lamps suspended above a water surface or pipe
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
DESCRIPTION
Procédé de régénération des eaux usées ou sales par surpression et oxygénation
L'invention concerne un procédé d'épuration continue des eaux, qui comprend un ensemble de dispositifs épurateurs mis en série et sous pression,en circuit fermé, d'un volume réduit, permettant d'obtenir en un temps trés court, de l'ordre de 2 à 3 heures seulement, une eau en sortie présentant des caractéristiques physiques, chimiques et biologiques, conformes, voire supérieures en qualité, à celles exigées actuellement par la législation française pour les rejets en rivière des eaux résiduaires urbaines.DESCRIPTION
Process for regenerating used or dirty water by overpressure and oxygenation
The invention relates to a process for the continuous purification of water, which comprises a series of purifying devices placed in series and under pressure, in a closed circuit, of a reduced volume, making it possible to obtain in a very short time, only about 2 to 3 hours, leaving water having physical, chemical and biological characteristics, in accordance with, or even better in quality, than those currently required by French legislation for discharges of urban wastewater into rivers.
Les eaux usées provenant du poste de dégrillage(l) Fig 5 puis du poste de dégraissage et dessablage (2) Fig 5,classi- ques, sont prises en charge par une pompe qui transportera ces eaux dégraissées dans une cuve dite " d'aération forcée" (3) Fig 5. Cette cuve est à une pression de 1 à 4 bars. Elle est de préférence cylindrique, visitable car présente un couvercle amovible (4) Fig 1, de forme arrondie . L'arrivée des eaux à traiter, se situe sur la partie superieure de la cuve, elle est munie d'un clapet anti-retour (10) Fig 1 afin d'éviter un refoulement de l'eau et de pouvoir maintenir une pression stable et adéquate. The waste water from the screen station (l) Fig 5 and then from the degreasing and sand removal station (2) Fig 5, conventional, are taken care of by a pump which will transport this degreased water in a so-called "aeration tank" forced "(3) Fig 5. This tank is at a pressure of 1 to 4 bars. It is preferably cylindrical, accessible because it has a removable cover (4) Fig 1, of rounded shape. The arrival of the water to be treated, is located on the upper part of the tank, it is fitted with a non-return valve (10) Fig 1 in order to prevent backflow of the water and to be able to maintain a stable pressure and adequate.
Cette cuve comporte une arrivée d'air (6) FIG 1 qui est sous pression. Elle se présente sous la forme d'un tube en inox, d'une longueur égale au diamètre de la cuve, perforé de multiples trous. This tank has an air inlet (6) FIG 1 which is under pressure. It is in the form of a stainless steel tube, with a length equal to the diameter of the tank, perforated with multiple holes.
Le fond de cette cuve est arrondi (5) Fig 1 et comprend la sortie des eaux usées (9) Fig 1 . La cuve repose sur un chassis (8) Fig 1. The bottom of this tank is rounded (5) Fig 1 and includes the waste water outlet (9) Fig 1. The tank rests on a frame (8) Fig 1.
Le débit de sortie de cette cuve est régulé par le clapet de retenue (10) Fig 1, qui maintient la pression interne à une valeur adéquate, la pression étant contrôlée à l'aide d'un manocontact (7) Fig 1. The outlet flow rate of this tank is regulated by the check valve (10) Fig 1, which maintains the internal pressure at an adequate value, the pressure being controlled using a pressure switch (7) Fig 1.
La contenance de cette cuve variera suivant le débit d'eau à traiter. Par exemple, pour un traitement de 50 M3 /heure, elle aura une contenance de l'ordre de 3 M3.The capacity of this tank will vary according to the flow of water to be treated. For example, for a treatment of 50 M3 / hour, it will have a capacity of the order of 3 M3.
L'air injecté au niveau (6) Fig 1, à l'aide d'un compresseur (11) Fig 5, devra avoir une pression de l'ordre de 10 bars afin que le mélange air + eau contenue dans la cuve, soit à une pression résultante de 1 à 4 bars, pression que l'on pourra faire varier sensiblement suivant le degré de purification désiré lors du traitement. The air injected at level (6) Fig 1, using a compressor (11) Fig 5, should have a pressure of the order of 10 bars so that the air + water mixture contained in the tank, either at a resulting pressure of 1 to 4 bars, a pressure which can be varied appreciably according to the degree of purification desired during the treatment.
Cet air sous pression, mis en présence d'un liquide, lui même sous pression, se dispersera dans le liquide sous la forme de micro-bulles, rendant l'eau gazeuse, aérant et oxygénant celle-ci et celà en quelques secondes, durée de temps suffisante pour améliorer et abaisser sensiblement la
DBO et DCO.This pressurized air, put in the presence of a liquid, itself under pressure, will disperse in the liquid in the form of micro-bubbles, making the gaseous water, aerating and oxygenating it and this in a few seconds, duration sufficient time to significantly improve and lower the
BOD and COD.
En effet, en amont de l'arrivée de l'air (6) Fig 1, se trouve un appareil dit " épurateur électrochimique " (12) Fig 5, qui se présente sous la forme d'un cylindre en matière plastique et qui a pour fonction de créer au passage de l'air une haute tension capacitive ( système Latour )(18) Fig 4 et de produire un ensemble de décharges électriques à l'aide de 2 électrodes (16) Fig 4, reliées à une série de pointes (17)
Fig 4. Au niveau de l'arrivée d'air sous pression (13) Fig 4, est injectée à l'aide d'une pompe doseuse (15) Fig 4, une quantité de Peroxyde, d'Hydrogène, de l'ordre de quelques ppm par M3 d'air, qui se trouvera alors vaporisé dans l'enceinte même de cet appareil.C'est cette micro-nébulisation de Peroxyde d'Hydrogène qui permettra par sa présence la conductivité entre les 2 électrodes et la création d'étincelles ( arc électrique) et une production d'un air oxygéné, chargé en ozone qui s'échappera par une sortie (14) Fig 4, directement reliée au tube perforé en inox (6) Fig 1.Indeed, upstream of the air inlet (6) Fig 1, there is a device called "electrochemical purifier" (12) Fig 5, which is in the form of a plastic cylinder and which has for the function of creating in the passage of air a high capacitive voltage (Latour system) (18) Fig 4 and of producing a set of electric discharges using 2 electrodes (16) Fig 4, connected to a series of points (17)
Fig 4. At the level of the pressurized air inlet (13) Fig 4, is injected using a metering pump (15) Fig 4, a quantity of Peroxide, Hydrogen, of the order of a few ppm per M3 of air, which will then be vaporized in the very enclosure of this device. It is this micro-nebulization of Hydrogen Peroxide which will allow, by its presence, the conductivity between the 2 electrodes and the creation of sparks (electric arc) and the production of oxygenated air, charged with ozone which will escape through an outlet (14) Fig 4, directly connected to the perforated stainless steel tube (6) Fig 1.
Une deuxième arrivée de peroxyde d'hydrogène (19) fig 4 est prévue à la sortie du dispositif dit " épurateur électrochimique ", également sous la forme d'une vaporisation fine, qui viendra s'ajouter lors de l'aération sous pression des eaux à traiter,obtenue dans la cuve (3) Fig 5. Cette adjonction supplémentaire de Peroxyde d'Hydrogène sera faite dans le but d'obtenir une épuration encore plus poussée de l'eau et per mettre, si nécessaire une dénitrification jusqu'à obtenir des teneurs en nitrates conformes à la règlementation en vigueur actuellement. A second arrival of hydrogen peroxide (19) fig 4 is provided at the outlet of the device called "electrochemical purifier", also in the form of a fine vaporization, which will be added during the aeration under pressure of the waters to be treated, obtained in the tank (3) Fig 5. This additional addition of Hydrogen Peroxide will be made in order to obtain an even more thorough purification of the water and to allow, if necessary, a denitrification until obtaining nitrate contents in accordance with current regulations.
Le passage des eaux à traiter, dans cette première cuve représente un premier stade dans ce procédé de traitement et il se fait en continu et en circuit fermé. The passage of the water to be treated in this first tank represents a first stage in this treatment process and it takes place continuously and in a closed circuit.
Delà, cette eau alimentera, toujours sous pression une deuxième cuve dite " de décantation accélérée "(20) Fig 5. From there, this water will feed, still under pressure, a second tank called "accelerated settling" (20) Fig 5.
L'alimentation se fera par une arrivée latérale de l'eau (21)
Fig 2 et Fig 3 afin que le liquide aéré, arrive dans cette cuve en jet tournant.The supply will be by a lateral water inlet (21)
Fig 2 and Fig 3 so that the aerated liquid arrives in this tank in a rotating jet.
Cette cuve sera d'une capacité similaire à la première cuve, soit pour l'exemple pré-cité d'un volume de l'ordre de 3 M3. Elle aura de préférence la forme cylindro-conique. Elle est composée d'un tambour rotatif perforé (22) Fig 2 et Fig 3, tournant à petite vitesse, de façon continue. A l'interieur de ce tambour est soudée une vis d'Archimède (23) Fig 2 qui permet de faire circuler l'eau vers le bas. Ce tambour rotatif a pour effet d'aider les particules en suspension à descendre plus vite vers le fond de la cuve en forme d'entonnoir (24) Fig 2 où se situe la sortie des boues (25) Fig 2. Ces boues sont maintenues à ce niveau par un clapet de retenue de pression réglable et seront aspirées par intermittence à l'aide d'une pompe. This tank will have a capacity similar to the first tank, ie for the above-mentioned example with a volume of the order of 3 M3. It will preferably have the cylindro-conical shape. It is composed of a perforated rotary drum (22) Fig 2 and Fig 3, rotating at low speed, continuously. Inside this drum is welded an Archimedes screw (23) Fig 2 which allows the water to circulate downwards. This rotating drum has the effect of helping the particles in suspension to descend more quickly towards the bottom of the funnel-shaped tank (24) Fig 2 where the sludge outlet (25) is located Fig 2. These sludges are maintained at this level by an adjustable pressure check valve and will be sucked in intermittently using a pump.
A la partie supérieure de cette deuxième cuve, se trouve solidaire au grand tambour rotatif, un deuxième tambour (26)
Fig 2, perforé de multiples trous (27) Fig 2, permettant une sélection des particules lourdes en suspension et de les refouler à ltexterieur. Est prévue une arrivée(351 Fig 2 pour-adjuvants.Ce système de deuxième cuve permet de récuperer en circuit continu et en un temps bref, de l'ordre de quelques minutes, un maximum de boues denses et de les évacuer. Ces boues présentent à ce stade l'avantage d'être en partie purifiées et d'être désodorisées. On pourra accélérer et parfaire cette décantation des eaux, en associant à l'arrivée de l'eau, une arrivée (28) Fig 2, de lait de chaux, injecté sous pression ou de sels metalliques. Un motovariateur (29) Fig 2 permettra le réglage de la vitesse de rotation des deux tambours.Une sortie, située au niveau superieur de cette cuve (30) Fig 2, munie d'un clapet de retenue (34) Fig 5 réglable afin de maintenir une pression stable et adéquate, permet l'évacuation de l'eau décantée vers un bassin (31) Fig 5.At the upper part of this second tank, is attached to the large rotary drum, a second drum (26)
Fig 2, perforated with multiple holes (27) Fig 2, allowing a selection of the heavy particles in suspension and to push them outside. An arrival is planned (351 Fig 2 pour-adjuvants.This second tank system allows to recover in continuous circuit and in a short time, of the order of a few minutes, a maximum of dense sludge and to evacuate them. at this stage the advantage of being partly purified and of being deodorized. This decantation of the waters can be accelerated and perfected, by associating with the arrival of the water, an arrival (28) Fig 2, of lime, injected under pressure or metallic salts. A variable speed motor (29) Fig 2 will allow the speed of rotation of the two drums to be adjusted. An outlet, located at the upper level of this tank (30) Fig 2, fitted with a valve retaining (34) Fig 5 adjustable to maintain a stable and adequate pressure, allows the evacuation of decanted water to a basin (31) Fig 5.
Ce bassin (31) Fig 5 dit de "décantation finale ", est muni d'un râcloir de surface (32) Fig 5 pour éliminer les dernières particules en suspension flottantes et présente de multiples déversoirs ( dispositif classique ). Il servira à une ultime clarification des eaux. Au fond de ce bassin, les dernières boues résiduelles sont reprises (33) Fig 5 pour être réinjectées dans le circuit primaire au niveau (2) Fig 5. This basin (31) Fig 5 called "final decantation", is provided with a surface scraper (32) Fig 5 to remove the last floating particles in suspension and has multiple weirs (conventional device). It will be used for a final clarification of the waters. At the bottom of this tank, the last residual sludge is taken up (33) Fig 5 to be reinjected into the primary circuit at level (2) Fig 5.
La contenance de ce bassin sera de l'ordre de 200 M3 pour 50 M3/heure. Il pourra, vu sa faible capacité, être le siège d'un traitement aux ultrats violets et être éventuellement couvert.The capacity of this basin will be around 200 M3 for 50 M3 / hour. It may, given its low capacity, be the site of treatment for purple ultratum and possibly be covered.
Les eaux à la sortie (30) Fig 2, subissent à ce niveau une brutale chute de pression, se trouvant alors en contact avec l'air libre à l'ouverture du clapet de retenue de pression (34) Fig 5. Cette variation de pression a pour but de participer à la destruction de la flore microbienne présente dans les eaux à traiter, car en effet, de nombreux germes microbiens ne résistent pas à un brusque changement de pression. The water at the outlet (30) Fig 2, undergoes a sudden pressure drop at this level, being then in contact with the open air at the opening of the pressure check valve (34) Fig 5. This variation in pressure aims to participate in the destruction of the microbial flora present in the water to be treated, because indeed, many microbial germs do not resist a sudden change in pressure.
Les boues résiduelles pourront être prises en charge au niveau de la cuve de décantation (20) Fig 5 par une centrifugeuse (système classique), qui les rendra encore plus denses et qui Seront par l'intermédiaire d'un compacteur mélangeur, associées à une faible quantité de paille broyée ou de sciure, augmentant leur volume d'environ par deux et permettant de rendre possible leur granulation afin de les destiner à un usage agricole aisé et à volume restreint. The residual sludge can be taken care of at the level of the settling tank (20) Fig 5 by a centrifuge (conventional system), which will make them even denser and which will be via a mixing compactor, associated with a small amount of crushed straw or sawdust, increasing their volume by about two and allowing their granulation to be possible in order to destine them for easy agricultural use and with limited volume.
L'ensemble de ce nouveau système épurateur des eaux peut fonctionner en automaticité complète. Il est valable pour des stations de traitement ayant une capacité de 20 à 500 M3/heure voire plus. The whole of this new water purifier system can operate in full automaticity. It is valid for treatment stations with a capacity of 20 to 500 M3 / hour or more.
Dans le simple cas d'un traitement d'eaux résiduaires urbaines, pour un rejet direct à la rivière, on peut se dispenser du dernier passage des eaux dans le bassin de décantation finale, cette eau ayant déjà les caractéristiques conformes aux normes actuelles de rejet. In the simple case of an urban waste water treatment, for a direct discharge to the river, one can dispense with the last passage of the waters in the final settling tank, this water already having the characteristics conforming to current discharge standards. .
Cette simplification du traitement, permet d'envisager une mise en application de ce système épurateur sous la forme d'unités mobiles de traitement, pouvant être destinées à dépolluer temporairement des lacs et étendues d'eau à usage ou pas de baignade, ou piscicole. This simplification of the treatment makes it possible to envisage an application of this purifying system in the form of mobile treatment units, which may be intended to temporarily clean up lakes and expanses of water for use or not for swimming, or fish farming.
Claims (6)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9006960A FR2662435B1 (en) | 1990-05-28 | 1990-05-28 | PROCESS FOR REGENERATING WASTE OR SALT WATER BY OVERPRESSURE AND OXYGENATION. |
| FR9010848A FR2666323B2 (en) | 1990-05-28 | 1990-08-29 | PROCESS FOR REGENERATING WASTE OR SALT WATER BY OVERPRESSURE AND OXYGENATION. |
| PCT/FR1991/000418 WO1991018839A1 (en) | 1990-05-28 | 1991-05-27 | Method for recycling waster water using excess pressure and oxygenation |
| EP19910910911 EP0484510A1 (en) | 1990-05-28 | 1991-05-27 | Method for recycling waster water using excess pressure and oxygenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9006960A FR2662435B1 (en) | 1990-05-28 | 1990-05-28 | PROCESS FOR REGENERATING WASTE OR SALT WATER BY OVERPRESSURE AND OXYGENATION. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2662435A1 true FR2662435A1 (en) | 1991-11-29 |
| FR2662435B1 FR2662435B1 (en) | 1993-12-10 |
Family
ID=9397280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9006960A Expired - Lifetime FR2662435B1 (en) | 1990-05-28 | 1990-05-28 | PROCESS FOR REGENERATING WASTE OR SALT WATER BY OVERPRESSURE AND OXYGENATION. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0484510A1 (en) |
| FR (1) | FR2662435B1 (en) |
| WO (1) | WO1991018839A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0495707A1 (en) * | 1991-01-16 | 1992-07-22 | OTV (OMNIUM de TRAITEMENTS et de VALORISATION) | Method and device for the oxidation of organic micropollutants in water by O3/H2O2 coupling |
| FR2687395A1 (en) * | 1992-02-17 | 1993-08-20 | Guasco Roger | Process for the treatment of waste water using a rotating lamellar effect |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2182704B1 (en) * | 2001-06-25 | 2004-05-16 | Jose Toro Galvez | WASTE WATER CLEANING SYSTEM FROM THE PROCESSING OF THE OLIVE BY MEANS OF AIR-NEUTRALIZATION-FILTRATION IN ACTIVE CARBON-OZONIZATION. |
| ES2224853B1 (en) * | 2003-05-21 | 2007-03-01 | Santiago Lopez Martinez | WATER CLEANING PROCEDURE OF ALMAZARA. |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2010250A1 (en) * | 1968-06-06 | 1970-02-13 | Fmc Corp | |
| US3804755A (en) * | 1971-08-02 | 1974-04-16 | L Cervantes | Sewage treatment system |
| US3853760A (en) * | 1973-03-28 | 1974-12-10 | Texaco Inc | Sewage ozonizing unit |
| US3864254A (en) * | 1973-03-28 | 1975-02-04 | Texaco Inc | Sewage treatment unit |
| US3879290A (en) * | 1973-05-29 | 1975-04-22 | Jr Nathaniel D Arnot | Domestic sewage system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677935A (en) * | 1964-05-04 | 1972-07-18 | Atomic Energy Commission | Treatment of sewage |
| US3825494A (en) * | 1972-08-30 | 1974-07-23 | D Call | Mini sewage treatment system |
| US4601822A (en) * | 1982-02-17 | 1986-07-22 | Frank Zamburro | Water purifying apparatus |
-
1990
- 1990-05-28 FR FR9006960A patent/FR2662435B1/en not_active Expired - Lifetime
-
1991
- 1991-05-27 WO PCT/FR1991/000418 patent/WO1991018839A1/en not_active Application Discontinuation
- 1991-05-27 EP EP19910910911 patent/EP0484510A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2010250A1 (en) * | 1968-06-06 | 1970-02-13 | Fmc Corp | |
| US3804755A (en) * | 1971-08-02 | 1974-04-16 | L Cervantes | Sewage treatment system |
| US3853760A (en) * | 1973-03-28 | 1974-12-10 | Texaco Inc | Sewage ozonizing unit |
| US3864254A (en) * | 1973-03-28 | 1975-02-04 | Texaco Inc | Sewage treatment unit |
| US3879290A (en) * | 1973-05-29 | 1975-04-22 | Jr Nathaniel D Arnot | Domestic sewage system |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPIL, Nr.83-749085 Ý35¨, Derwent & HU-A 25514 (TATABANYAI SZENBANYAK) 28.07.83 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0495707A1 (en) * | 1991-01-16 | 1992-07-22 | OTV (OMNIUM de TRAITEMENTS et de VALORISATION) | Method and device for the oxidation of organic micropollutants in water by O3/H2O2 coupling |
| FR2687395A1 (en) * | 1992-02-17 | 1993-08-20 | Guasco Roger | Process for the treatment of waste water using a rotating lamellar effect |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0484510A1 (en) | 1992-05-13 |
| WO1991018839A1 (en) | 1991-12-12 |
| FR2662435B1 (en) | 1993-12-10 |
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