EP0484510A1 - Method for recycling waster water using excess pressure and oxygenation - Google Patents
Method for recycling waster water using excess pressure and oxygenationInfo
- Publication number
- EP0484510A1 EP0484510A1 EP19910910911 EP91910911A EP0484510A1 EP 0484510 A1 EP0484510 A1 EP 0484510A1 EP 19910910911 EP19910910911 EP 19910910911 EP 91910911 A EP91910911 A EP 91910911A EP 0484510 A1 EP0484510 A1 EP 0484510A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- tank
- called
- purifying
- purification
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000006213 oxygenation reaction Methods 0.000 title description 2
- 238000004064 recycling Methods 0.000 title 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 230000006378 damage Effects 0.000 claims abstract description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 238000010908 decantation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000813 microbial effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 244000052616 bacterial pathogen Species 0.000 claims 1
- 239000003651 drinking water Substances 0.000 claims 1
- 235000020188 drinking water Nutrition 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 235000019645 odor Nutrition 0.000 claims 1
- 150000002978 peroxides Chemical class 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000008213 purified water Substances 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 claims 1
- 239000003643 water by type Substances 0.000 abstract description 3
- 238000005238 degreasing Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 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
- 239000000654 additive Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 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
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
Definitions
- 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 2 to 3 hours, leaving water having characteristics, physical, chemical and biological, conforming, or even superior in quality, to those currently required by French legislation for discharges of urban wastewater into rivers.
- 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 inlet 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 avoid backflow of the water and to be able to maintain a stable pressure and adequate.
- 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.
- 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.
- the outlet flow rate of this tank is regulated by the valve retainer (10) Fig 1, which maintains the pressure
- This tank will vary depending on the flow of water to be treated. For example, for a treatment of 50m3 / hour, it will have a capacity of the order of 3m3.
- 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 is at a resulting pressure of 1 to 4 bars, a pressure which can be varied substantially depending on the degree of purification desired during the treatment.
- This additional addition of hydrogen peroxide will be made in order to obtain an even more thorough purification of the water and allow, if necessary, a denitrification until obtaining nitrate contents in accordance with the regulations in force at present.
- the passage of the waters to be treated in this first tank represents a first stage in this treatment process, which takes place continuously and in a closed circuit.
- this water will feed, still under pressure, a second tank called "accelerated settling” (20) Fig 5.
- the supply will be by a side inlet of the water (21) Fig 2 and Fig 3, so that the aerated liquid arrives in this tank in a rotating jet.
- This tank will have a capacity similar to the first tank, ie for the aforementioned example, with a volume of the order of 3m3. 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 archimedean 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.
- this second tank 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 driving them back to the 'outside.
- An arrival (35) Fig 2 is provided for additives.
- This settling of water can be accelerated and perfected by combining the arrival of water with an inlet (28) Fig 2 of milk of lime or of metallic salts, injected under pressure.
- a variable speed motor (29) Fig 2 will allow the speed of rotation of the two drums to be adjusted.
- This basin (31) Fig 5 called “final decantation”, is provided with a surface scraper ("é) Fig 5 to remove the last floating suspended particles, it has multiple weirs (conventional device).
- REPLACEMENT SHEET takes place in an expansion chamber, its purpose is to participate in the release of gaseous substances and in the destruction of part of the microbial flora which will not resist this sudden difference in pressure.
- the whole of this new water purifier system can operate in full automaticity. It is interesting for treatment stations with a capacity of 20 to 500 m3Lhour, or even more.
Abstract
Le procédé consiste à purifier les eaux usées en un temps très bref et de manière continue. Il permet d'obtenir dans un premier stade, en 2 à 3 heures, une eau présentant les caractéristiques physiques, chimiques et biologiques conformes, voires supérieures en qualité, aux normes françaises de rejet des eaux résiduaires. Le procédé permet la destruction de la flore anaérobie et une partie de la flore aérobie. Le système d'épuration accélérée, associé à certains dispositifs classiques d'épuration tertiaire, permet d'atteindre un stade de potabilité. Les eaux à traiter, prises après dégrillage, dessablage et dégraissage classiques, sont introduites successivement dans deux cuves en série, sous pression en circuit fermé. La première cuve dite 'd'aération forcée' (3), oxygène les eaux, de façon intense et les gazéifie par l'injection d'air comprimé oxygéné et chargé d'ozone. La deuxième cuve dite de 'décantation accélérée' (20), permet une récupération en fond de cuve de boues en partie purifiées et désodorisées. En sortie, les eaux présentent à ce stade les caractéristiques des normes de rejet. La troisième cuve (31) permet d'améliorer l'épuration, et pour atteindre la potabilité, on peut additionner du péroxyde d'hydrogène dans le système épurateur et des dispositifs classiques de filtre. La rapidité et la qualité de traitement de ce système épurateur qui peut fonctionner dans un espace relativement réduit, rend possible sa mise en application sous forme d'unités mobiles de traitement.The process consists in purifying wastewater in a very short time and continuously. It allows to obtain in a first stage, in 2 to 3 hours, a water having the physical, chemical and biological characteristics in conformity, see superior in quality, to the French standards of discharge of waste waters. The process allows the destruction of the anaerobic flora and part of the aerobic flora. The accelerated purification system, associated with certain conventional tertiary purification devices, makes it possible to reach a potability stage. The water to be treated, taken after screening, regular sanding and degreasing, is successively introduced into two tanks in series, under pressure in a closed circuit. The first so-called 'forced ventilation' tank (3) oxygenates the water intensively and gasifies it by injecting compressed oxygenated and ozone-laden air. The second so-called 'accelerated settling tank' (20) allows recovery of partially purified and deodorized sludge at the bottom of the tank. At the outlet, the waters present at this stage the characteristics of the discharge standards. The third tank (31) makes it possible to improve the purification, and to reach the potability, it is possible to add hydrogen peroxide in the purifying system and conventional filter devices. The speed and quality of treatment of this purification system, which can operate in a relatively small space, makes it possible to apply it in the form of mobile treatment units.
Description
PROCEDE DE REGENERATION DES EAUX USEES PAR SURPRESSION ET OXYGENATION. PROCESS FOR REGENERATING WASTEWATER BY OVERPRESSURE AND OXYGENATION.
i 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 très 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.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 2 to 3 hours, leaving water having characteristics, physical, chemical and biological, conforming, or even superior in quality, to those currently required by French legislation for discharges of urban wastewater into rivers.
Les eaux usées provenant du poste de dégrillage (1) Fig 5, puis du poste de dessablage et dégraissage ( 2 ) Fig 5, classiques, 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 supérieure 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.Waste water from the screen station (1) Fig 5, then from the grit removal and degreasing station (2) Fig 5, conventional, are taken care of by a pump which will transport this degreased water in a tank called "forced ventilation" "(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 inlet 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 avoid 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 châssis (8) Fig 1. Le débit de sortie de cette cuve est régulé par le clapet de retenue (10) Fig 1, qui maintient la pressionThe 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. The outlet flow rate of this tank is regulated by the valve retainer (10) Fig 1, which maintains the pressure
B f8 LACEl^ε^T
interne à une valeur adéquate, la pression étant contrôlée à l'aide d'un manocontact (7) Fig 1.B f 8 L ACEl ^ ε ^ T internal to 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 50m3/heure, elle aura une contenance de l'ordre de 3m3.The capacity of this tank will vary depending on the flow of water to be treated. For example, for a treatment of 50m3 / hour, it will have a capacity of the order of 3m3.
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 contenu 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 is at a resulting pressure of 1 to 4 bars, a pressure which can be varied substantially depending on 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 forme de micro-bulles, rendant l'eau gazeuse, aérant et oxygénant celle-ci et cela, 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 carbonated water, aerating and oxygenating it and this, in a few seconds, duration sufficient time to significantly improve and lower BOD and COD.
En effet, en amont de l'arrivée de l'air (6) Fig 1, se trouve un appareil dit " épurateur électro-chimique " (&é) 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 ( systèmeIndeed, upstream of the air inlet (6) Fig 1, there is a device called "electro-chemical purifier" (& é) Fig 5, which is in the form of a plastic cylinder and which has the function of creating in the passage of air, a high capacitive voltage (system
Latour ) (8) 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'un pompe dσseuse (15) Fig 4 , une quantité de peroxyde d'hydrogène, de l'ordre de quelques ppm par m3 d'air, qui se trouvera vaporisé dans l'enceinte même de cet appareil. C'est cette micro-nébullisation de peroxyde d'hydrogène qui permettra par sa présence la conductivité entre les 2 électrodes et la création d'arcs électriques avec 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.Latour) (8) Fig 4 and produce a set of electric shocks using 2 electrodes (16) Fig 4, connected to a series of spikes (17) Fig 4. At the level of the air supply under pressure (13) Fig 4, is injected using a metering pump (15) Fig 4, an amount of hydrogen peroxide, of the order of a few ppm per m3 of air, which will be vaporized in the very enclosure of this unit. It is this micro-nebulization of hydrogen peroxide which, by its presence, will allow the conductivity between the 2 electrodes and the creation of electric arcs with 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 " épurateurA second arrival of hydrogen peroxide (19) Fig 4 is provided at the outlet of the device called "purifier
FEUILLE DE REMPLACERAI
électro-chimique ", 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 de l'eau encore plus poussée et permettre si nécessaire une dénitrification jusqu'à obtenir des teneurs en nitrates conformes à la réglementation en vigueur actuellement. Le passage des eaux à traiter dans cette première cuve représente un premier stade dans ce procédé de traitement . Il se fait en continu et en circuit fermé.REPLACEMENT SHEET electro-chemical ", also in the form of a fine vaporization, which will be added during the aeration under pressure of the water 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 allow, if necessary, a denitrification until obtaining nitrate contents in accordance with the regulations in force at present. The passage of the waters to be treated in this first tank represents a first stage in this treatment process, which takes place continuously and in a closed circuit.
Ensuite, cette eau alimentera, toujours sous pression, une deuxième cuve dite de " décantation accélérée " (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.Then, this water will feed, still under pressure, a second tank called "accelerated settling" (20) Fig 5. The supply will be by a side inlet of the water (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 3m3. Elle aura de préférence la forme cylindro-conique. Elle est compsé d'un tambour rotatif perforé (22) Fig 2 et Fig 3, tournant à petite vitesse, de façon continue. A l'intérieur 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 aforementioned example, with a volume of the order of 3m3. 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 archimedean 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 l'extérieur. Est prévue une arrivée (35) Fig 2 pour adjuvants. Ce système de deuxième cuve permet de récupérer en un temps bref, deAt 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 driving them back to the 'outside. An arrival (35) Fig 2 is provided for additives. This second tank system makes it possible to recover in a short time,
FEUILLE DE REMPLACEMENT
l'ordre de quelques minutes et en continu un maximum de boues denses et de les évacuer. Ces boues présentent à ce stade, l'avantage d'êtres en partie purifiées et 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 ou de sels métalliques,injectés sous pression. Un motovariateur (29) Fig 2 permettra le réglage de la vitesse de rotation des deux tambours. Une sortie, située au niveau supérieur 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.REPLACEMENT SHEET the order of a few minutes and continuously a maximum of dense sludge and to dispose of them. At this stage, this sludge has the advantage of being partly purified and deodorized. This settling of water can be accelerated and perfected by combining the arrival of water with an inlet (28) Fig 2 of milk of lime or of metallic salts, injected under pressure. 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, provided with a check valve (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 racloir de surface ("é) Fig 5 pour éliminer les dernières particules en suspension flottantes,il présente de multiples déversoirs ( dispositif classique ). Il servira à une ultime clarification des eaux, en association avec un procédé de traitement pelliculaire, composé de trois dispositifs agissant à la surface de 1'eau:This basin (31) Fig 5 called "final decantation", is provided with a surface scraper ("é) Fig 5 to remove the last floating suspended particles, it has multiple weirs (conventional device). a final clarification of the waters, in association with a film treatment process, composed of three devices acting on the surface of the water:
- Dispositif émettant un rayonnement UV stérilisant.- Device emitting sterilizing UV radiation.
- Dispositif émettant une lumière polarisée, grâce à un système réfléchissant la lumière de lampes halogènes, ceci permettant la décantation de métaux lourds et autres substances chimiques.- Device emitting polarized light, thanks to a system reflecting the light of halogen lamps, this allowing the settling of heavy metals and other chemical substances.
Dispositif émettant un champ magnétique continu favorisant la décantation de sels et autres substances chimiques. 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. Ce bassin pourra être éventuellement couvert.Device emitting a continuous magnetic field favoring the settling of salts and other chemical substances. At the bottom of this basin, the last residual sludge is taken up (33) Fig 5 to be reinjected into the primary circuit at level (2) Fig 5. This basin could possibly be covered.
Les eaux en sortie (30) Fig 2, subissent à ce niveau 5une brutale chute de pression, se trouvant alors au contact de l'air libre à l'ouverture du clapet de retenue de pression (34) Fig 5. Cette variation de pression.The outlet water (30) Fig 2, undergo at this level 5 a sudden drop in pressure, being then in contact with the open air at the opening of the pressure check valve (34) Fig 5. This pressure variation .
FEUILLE DE REMPLACEMENT
s'effectue dans une chambre de détente, elle a pour but de participer à la libération de substances gazeuses et à la destruction d'une partie de la flore microbienne qui ne résistera pas à cette différence brutale de pression. L'ensemble de ce nouveau système épurateur des eaux peut fonctionner en automaticité complète. Il est intéressant pour des stations de traitement d'une capacité de 20 à 500 m3Lheure, voire plus.REPLACEMENT SHEET takes place in an expansion chamber, its purpose is to participate in the release of gaseous substances and in the destruction of part of the microbial flora which will not resist this sudden difference in pressure. The whole of this new water purifier system can operate in full automaticity. It is interesting for treatment stations with a capacity of 20 to 500 m3Lhour, or even 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 dit de " décantation finale ", cette eau ayant déjà les caractéristiques des normes de rejets.In the simple case of treatment of urban waste water, for a direct discharge to the river, one can dispense with the last passage of water in the basin known as "final decantation", this water already having the characteristics of the standards of rejections.
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 ponctuellemnt, entre autres, des lacs et étendues d'eau à usage 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 clean up punctually, inter alia, lakes and bodies of water for bathing or fish farming use.
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Claims
1. Procédé d'épuration des eaux usées urbaines, industrielles ou agricoles, qui permet d'obtenir, en un temps très court, de façon continue, sans stockage ni odeurs, des eaux épurées dont les caractéristiques physiques, chimiques et biologiques sont conformes aux normes françaises actuelles de rejet. Ce procédé, associé à des dispositifs complémentaires épurateurs, peut donner des eaux potables. Le système épurateur est principalement caractérisé par le maintient sous pression d'un ensemble de deux dispositifs épurateurs, mis en série, en circuit fermé: une cuve dite "d'aération forcée" et une cuve dite de "décantation accélérée" et d'un dispositif à pression admosphérique, une cuve dite de "décantation finale".1. Process for purifying urban, industrial or agricultural wastewater, which makes it possible to obtain, in a very short time, continuously, without storage or odors, purified water whose physical, chemical and biological characteristics comply with current French rejection standards. This process, combined with additional purifying devices, can give drinking water. The purifier system is mainly characterized by maintaining under pressure a set of two purifiers, placed in series, in a closed circuit: a tank called "forced ventilation" and a tank called "accelerated settling" and a admospheric pressure device, a so-called "final settling tank".
2. Procédé épurateur d'eau, qui selon la revendication 1, 5 est caractérisé par un premier passage des eaux à traiter dans la cuve dite "d'aération forcée", où est injecté de l'air sous pression associé à du peroxyde d'hydrogène. Ce mélange d'air oxygéné qui se charge d'ozone après un passage dans un dispositif dit "d'épuration o électrochimique haute tension", aère, oxygène et gazéifie l'eau à traiter, l'épurant en grande partie et cela en quelques secondes.2. A water purifying method, which according to claim 1, 5 is characterized by a first passage of the water to be treated in the so-called "forced ventilation" tank, into which air is injected under pressure associated with peroxide d 'hydrogen. This mixture of oxygenated air which is charged with ozone after passing through a device called "high voltage electrochemical or o purification", aerates, oxygenates and gasifies the water to be treated, largely purifying it and this in a few seconds.
3. Procédé épurateur électro-chimique haute tension qui 5 selon la revendication 2, est caractérisé par un système haute tension ( système Latour ) dont la conductivité entre deux électrodes, est favorisée par l'addition de peroxyde d'hydrogène permettant un bon rendement de fabrication d'ozone. 03. High-voltage electro-chemical purifying process which according to claim 2, is characterized by a high-voltage system (Latour system) whose conductivity between two electrodes is favored by the addition of hydrogen peroxide allowing a good yield of ozone manufacturing. 0
4. Procédé épurateur qui selon la revendication 2, est caractérisé par le fait que l'on peut faire un apport supplémentaire de peroxyde d'hydrogène, de façon4. purifying process which according to claim 2, is characterized in that one can make an additional supply of hydrogen peroxide, so
FEUILLE DE REMPLACEMENT indépendante, à la sortie d'air du système dit "épurateur électrochimique haute tension". Il s'additionne au mélange air/ozone injecté dans l'eau à traiter. Cet apport supplémentaire de peroxyde d'hydrogène permet d'augmenter le degré de purification et de dénitrifier si nécessaire.REPLACEMENT SHEET independent, at the air outlet of the system called "high voltage electrochemical purifier". It is added to the air / ozone mixture injected into the water to be treated. This additional supply of hydrogen peroxide makes it possible to increase the degree of purification and to denitrify if necessary.
5. Procédé épurateur d'eau, qui selon la revendication 1, est caractérisé par un passage des eaux déjà aérées, dans une deuxième cuve de décantation accélérée, sous pression, à tambour rotatif, permettant, grâce à l'ensemble de son dispositif, de recueillir de façon continue, en un temps très bref, sans stockage, des boues désodorisées et partiellement épurées.5. A water purifying process, which according to claim 1, is characterized by a passage of already aerated water, in a second accelerated settling tank, under pressure, with a rotary drum, allowing, thanks to all of its device, to collect continuously, in a very short time, without storage, deodorized and partially purified sludge.
6. Procédé épurateur d'eau qui selon la revendication 1, est caractérisé par le fait qu'à la sortie de la cuve de décantation accélérée, l'eau subit une brutale chute de pression, lors de l'ouverture du clapet de sortie, ceci permettant la destruction de cetains germes microbiens.6. A water purifying method which according to claim 1, is characterized in that at the outlet from the accelerated settling tank, the water undergoes a sudden drop in pressure, when the outlet valve is opened, this allows the destruction of certain microbial germs.
7. Procédé d'épuration, caractérisé par le fait qu'il peut être simplifié au maximum, en n'utilisant que deux cuves: aération forcée et décantation accélérée, en série, sous pression, en circuit fermé. Il permet un traitement pour simple rejet en rivière aux normes légales. Ce système épurateur étant d'un volume très réduit, il peut être rendu mobile sur remorque et permettre une utilisation sur différents sites: lacs, étangs pollués...7. Purification process, characterized in that it can be simplified as much as possible, by using only two tanks: forced aeration and accelerated decantation, in series, under pressure, in closed circuit. It allows treatment for simple discharge into the river to legal standards. This purifier system being of a very reduced volume, it can be made mobile on trailer and allow a use on different sites: lakes, polluted ponds ...
8.Procédé épurateur , qui selon la revendication 1, est caractérisé par la présence dans la cuve dite de "décantation finale" de trois dispositifs de traitement pelliculaire de l'eau: - un rayonnement UV durs pour stérilisation. - une émission de lumière polarisée, à partir d'un système réfléchissant la lumière émise par des lampes halogènes, favorisant, entre autres, la décantation des métaux8. purifying process, which according to claim 1, is characterized by the presence in the so-called "final decantation" tank of three film treatment devices for the water: - hard UV radiation for sterilization. - an emission of polarized light, from a system reflecting the light emitted by halogen lamps, promoting, among other things, the settling of metals
FEUÎLLE DE REMPLACEMENT lourds .FIRE Î LLE REPLACEMENT heavy.
- un champ magnétique continu favorisant la décantation des certains sels et substances chimiques.- a continuous magnetic field favoring the settling of certain salts and chemical substances.
FEUILLE DE REMPLACEMENT REPLACEMENT SHEET
Applications Claiming Priority (2)
| 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. |
| FR9006960 | 1990-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0484510A1 true EP0484510A1 (en) | 1992-05-13 |
Family
ID=9397280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19910910911 Withdrawn EP0484510A1 (en) | 1990-05-28 | 1991-05-27 | Method for recycling waster water using excess pressure and oxygenation |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0484510A1 (en) |
| FR (1) | FR2662435B1 (en) |
| WO (1) | WO1991018839A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671548B1 (en) * | 1991-01-16 | 1995-03-24 | Omnium Traitement Valorisa | PROCESS AND DEVICE FOR OXIDATION OF ORGANIC MICROPOLLUTANTS IN WATERS BY TORQUE 03 / H2O2. |
| FR2687395B1 (en) * | 1992-02-17 | 1995-01-20 | Roger Guasco | PROCESS FOR THE TREATMENT OF WASTEWATER BY A ROTATING LAMELLAR EFFECT. |
| 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. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677935A (en) * | 1964-05-04 | 1972-07-18 | Atomic Energy Commission | Treatment of sewage |
| US3530067A (en) * | 1968-06-06 | 1970-09-22 | Fmc Corp | Method of treating sewage |
| US3804755A (en) * | 1971-08-02 | 1974-04-16 | L Cervantes | Sewage treatment system |
| US3825494A (en) * | 1972-08-30 | 1974-07-23 | D Call | Mini sewage treatment system |
| US3864254A (en) * | 1973-03-28 | 1975-02-04 | Texaco Inc | Sewage treatment unit |
| US3853760A (en) * | 1973-03-28 | 1974-12-10 | Texaco Inc | Sewage ozonizing unit |
| US3879290A (en) * | 1973-05-29 | 1975-04-22 | Jr Nathaniel D Arnot | Domestic sewage 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 EP EP19910910911 patent/EP0484510A1/en not_active Withdrawn
- 1991-05-27 WO PCT/FR1991/000418 patent/WO1991018839A1/en not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9118839A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2662435A1 (en) | 1991-11-29 |
| FR2662435B1 (en) | 1993-12-10 |
| WO1991018839A1 (en) | 1991-12-12 |
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