FR2607490A1 - Biological process for the treatment of vegetable and animal fats using bacteria in purification stations and application of the said process - Google Patents

Biological process for the treatment of vegetable and animal fats using bacteria in purification stations and application of the said process Download PDF

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Publication number
FR2607490A1
FR2607490A1 FR8616785A FR8616785A FR2607490A1 FR 2607490 A1 FR2607490 A1 FR 2607490A1 FR 8616785 A FR8616785 A FR 8616785A FR 8616785 A FR8616785 A FR 8616785A FR 2607490 A1 FR2607490 A1 FR 2607490A1
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tank
tanks
bacteria
water
fats
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1205Particular type of activated sludge processes
    • C02F3/121Multistep treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/20Activated sludge processes using diffusers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/343Biological treatment of water, waste water, or sewage characterised by the microorganisms used for digestion of grease, fat, oil
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/348Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Biological process for the treatment of vegetable and animal fats. The fats to be destroyed arrive via a pipeline 1 from the station scrapers; these fats overflow into a first tank 2 which precedes a second tank 3 and a third tank 4; tanks 2 and 3 comprise oxidation dip-pipes 5 which are fed with compressed air by a compressor unit 6; heating coils 7 are arranged on the walls 8 of tanks 2 and 3; dispensers for bacteria 9 and 10 are arranged at the tanks 2 and 3; a pump is arranged at the bottom of tank 2, tank 3 comprises a pump 12 which draws in the treated water and discharges it towards tank 4, which is used to recover the water thus treated. The invention applies to the treatment of animal and vegetable fats in sewage.

Description

L'invention a pour objet un procédé biologique de traitement des graisses végétales et animales par les bactéries dans les stations d'épuration et dispositif pour la mise en oeuvre dudit procédé. The subject of the invention is a biological process for the treatment of vegetable and animal fats by bacteria in treatment plants and a device for implementing said process.

Les graisses animales et végétales ont toujours posé des problèmes. Animal and vegetable fats have always been a problem.

Actuellement, l'acheminement des eaux usées vers les stations d'épuration suit deux voies distinctes. Currently, the transportation of wastewater to treatment plants follows two separate routes.

1) Le tout-à-l'égout
Ce flux est aidé par plusieurs pompes de relevage situées en aval de la station d'épuration. Le tout-à-l'égout draine toutes les eaux y compris les graisses ménagères et de restauration non piégées par des bacs à graisses.
1) Sewerage
This flow is helped by several lifting pumps located downstream from the treatment plant. The mains drainage drains all the water, including household and catering grease, not trapped by grease traps.

Les graisses restent fréquemment piégées dans les stations de relevage, bloquant les flotteurs et les sytèmes hydrauliques. Elles sont régulièrement pompées par des camions citernes qui viennent curer et vidanger les bacs à graisses et qui déversent les graisses récupérées ainsi dans des stations d'épuration. Grease frequently remains trapped in lifting stations, blocking floats and hydraulic systems. They are regularly pumped by tanker trucks which clean and empty the grease traps and which discharge the grease thus recovered in treatment plants.

2) Les vidangeurs assainisseurs
Les vidangeurs vident le contenu de leur camion directement en station d'épuration lorsqu'il s'agit de fosse septique. Ces vidangeurs vident ces graisses dans les stations qui les acceptent, soit malheureusement dans des égouts retirés, nuisant ainsi à l'ensemble du réseau.
2) The drainers
The emptiers empty the contents of their truck directly to the treatment plant when it is a septic tank. These emptiers empty these greases in the stations which accept them, that is to say unfortunately in withdrawn sewers, thus harming the whole network.

Ces graisses sont indestructibles si ce n'est par des moyens chimiques qui nuisent considérablement au bon fonctionnement des stations d'épuration, biologiques ou physico-chimiques. These fats are indestructible if not by chemical means which considerably affect the proper functioning of treatment plants, biological or physico-chemical.

Par contre, ces graisses peuvent être traitées directement par un procédé bactérien (digestion par les bactéries, rejet d'eau et de gaz méthane). Ce procédé bactérien est déjà utilisé dans des bacs à graisse de type classique (restauration, collectivité, grande hôtellerie). Ce procédé permet d'éliminer 90% des graisses, mais ne règle pas le problème des vidangeurs qui, vident les graisses soit en station, soit dans des égouts retirés en polluant le réseau. On the other hand, these fats can be treated directly by a bacterial process (digestion by bacteria, rejection of water and methane gas). This bacterial process is already used in conventional grease traps (catering, community, large hotels). This process makes it possible to eliminate 90% of the greases, but does not solve the problem of the emptiers who, empty the greases either in station, or in sewers withdrawn by polluting the network.

Le dispositif selon l'invention consiste à traiter les graisses par un procédé bactérien à la station d'épuration. The device according to the invention consists in treating fats by a bacterial process at the purification station.

Le dispositif selon l'invention consiste à traiter les graisses dans des bacs successifs dont la température de l'eau est maintenue entre 20 et 400C, au moyen de serpentins de chauffe, alimentés par une chaudière électrique pour obtenir un meilleur rendement dans le développement bactérien et dans la digestion des graisses par les bactéries, les bacs sont oxygénés par des cannes d'oxygénation qui assurent, d'une part, l'oxygénation du liquide dans lesdits bacs et, d'autre part, le brassage pour faire remonter les graisses en surface où elles sont digérées par les bactéries ; des pompes de relevage disposées au fond desdits bacs évacuent l'eau du premier bac vers le second et ainsi de suite, en cascade, vers le dernier bac qui est un bac de décantation et un bassin d'analyse. The device according to the invention consists in treating the fats in successive tanks whose water temperature is maintained between 20 and 400C, by means of heating coils, supplied by an electric boiler to obtain a better yield in the bacterial development. and in the digestion of fats by bacteria, the tanks are oxygenated by oxygenation rods which ensure, on the one hand, the oxygenation of the liquid in said tanks and, on the other hand, the stirring to bring up the fats on the surface where they are digested by bacteria; lifting pumps placed at the bottom of said tanks evacuate the water from the first tank to the second and so on, in cascade, to the last tank which is a settling tank and an analysis tank.

Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention. The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

La figure 1 est une vue schématique du dispositif pour la mise en oeuvre du procédé selon l'invention. Figure 1 is a schematic view of the device for implementing the method according to the invention.

Les graisses à détruire arrivent par une canalisation 1 des racleurs de la station. The grease to be destroyed arrives via a line 1 of the station scrapers.

Ces graisses sont déversées dans un premier bac 2, qui précède un second bac 3 et un troisième bac 4. These greases are poured into a first tank 2, which precedes a second tank 3 and a third tank 4.

Les bacs 2 et 3 comportent des cannes d'oxygénation 5 qui sont alimentées en air comprimé par un groupe compresseur 6. Cet air comprimé forme une émulsion qui permet aux graisses de remonter ou de rester en surface. The tanks 2 and 3 include oxygenation rods 5 which are supplied with compressed air by a compressor group 6. This compressed air forms an emulsion which allows the fats to rise or remain on the surface.

Des serpentins de chauffe 7, alimentés par une chaudière électrique, sont disposés sur les parois 8 des bacs 2 et 3 afin de maintenir la température aux environs de 20 à 400C qui est la température idéale pour un meilleur rendement des bactéries. Heating coils 7, supplied by an electric boiler, are arranged on the walls 8 of tanks 2 and 3 in order to maintain the temperature around 20 to 400C which is the ideal temperature for a better yield of bacteria.

Les bactéries peuvent être par exemple des bactéries PROLIBAG.G (marque déposée par SANOSIL). The bacteria may for example be PROLIBAG.G bacteria (trademark registered by SANOSIL).

Des doseurs de bactéries 9 et 10 sont disposés au niveau des bacs 2 et 3 pour déverser et ensemencer la quantité de bactéries nécessaire pour une bonne destruction biologique des graisses. Bacteria feeders 9 and 10 are placed at the level of tanks 2 and 3 in order to pour and seed the quantity of bacteria necessary for good biological destruction of fat.

Une pompe aspirante refoulante 11 est disposée au fond du bac 2, elle aspire l'eau et la refoule vers le bac 3 pour un second traitement bactérien qui peut être plus doux. A suction pump 11 is disposed at the bottom of the tank 2, it sucks the water and delivers it to the tank 3 for a second bacterial treatment which can be milder.

Le bac 3 comporte également une pompe aspirante refoulante 12 qui aspire l'eau traitée et la refoule vers le bac 4 qui sert à récupérer les eaux ainsi traitées à les décanter et à les analyser pour déterminer le lieu de rejet final (station d'épuration, drainage ou rejet dans un ruisseau). The tank 3 also includes a pressure suction pump 12 which sucks the treated water and delivers it to the tank 4 which is used to recover the water thus treated, decant it and analyze it to determine the place of final discharge (treatment plant , drainage or discharge into a stream).

A cet effet, ce dernier bac 4 peut lui aussi comporter une pompe aspirante refoulante 13.  To this end, this last tank 4 can also include a pressure suction pump 13.

Claims (4)

REVENDICATIONS 1. Procédé biologique de traitement des graisses végétales et animales par les bactéries caractérisé par le fait 1. Biological process for the treatment of vegetable and animal fats by bacteria, characterized by the fact qu'il consiste à traiter les eaux usées par un procédé bactérien à la station d'épuration et ce, dans une série de bacs successifs où s'exerce l'action bactérienne, les eaux traitées du premier bac (2), étant traitées ensuite par le second bac (3) et ainsi de suite jusqu'au dernier bac (4) qui est un bac d'analyse et de décantation. that it consists in treating the waste water by a bacterial process at the purification station and this, in a series of successive tanks where the bacterial action is exerted, the treated water of the first tank (2), being treated then by the second tank (3) and so on until the last tank (4) which is an analysis and settling tank. 2. Procédé selon la revendication 1 caractérisé par le fait 2. Method according to claim 1 characterized in that que les bactéries utilisées sont des bactéries connues par exemple sous la marque PROLIBAG.G déposée par SANOSIL ou similaire. that the bacteria used are bacteria known for example under the trade mark PROLIBAG.G registered by SANOSIL or the like. 3. Procédé selon l'une quelconque des revendications 1 ou 2 caractérisé par le fait 3. Method according to any one of claims 1 or 2 characterized in that qu'il consiste à traiter les graisses dans des bacs successifs (2, 3, 4) dont la température de l'eau est maintenue entre 20 et 400C au moyen de serpentins de chauffe (7), alimentés par une chaudière électrique, pour obtenir le meilleur rendement dans le développement bactérien et dans la digestion des graisses par les bactéries, les bacs (2, 3, 4) sont oxygénés par des cannes d'oxygénation (5) qui assurent, d'une part, l'oxygénation du liquide dans lesdits bacs et, d'autre part, le brassage pour faire remonter les graisses en surface où elles sont digérées par les bactéries ; des pompes de relevage disposées au fond desdits bacs évacuent l'eau du premier bac vers le second et ainsi de suite, en cascade, vers le dernier bac (4) qui est un bac de décantation et un bassin d'analyse. that it consists of treating the greases in successive tanks (2, 3, 4) whose water temperature is maintained between 20 and 400C by means of heating coils (7), supplied by an electric boiler, to obtain the best performance in bacterial development and in the digestion of fats by bacteria, the tanks (2, 3, 4) are oxygenated by oxygenation rods (5) which ensure, on the one hand, the oxygenation of the liquid in said tanks and, on the other hand, stirring to bring up the fat on the surface where they are digested by bacteria; lifting pumps arranged at the bottom of said tanks evacuate the water from the first tank to the second and so on, in cascade, to the last tank (4) which is a settling tank and an analysis tank. 4. Dispositif pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1, 2 ou 3 caractérisé par le fait 4. Device for implementing the method according to any one of claims 1, 2 or 3 characterized in that que les graisses à détruire arrivent par une canalisation (1) des racleurs de la station ; ces graisses sont déversées dans un premier bac (2), qui précède un second bac (3) et un troisième bac (4) ; les bacs comportent des cannes d'oxygénation (5) qui sont alimentées en air comprimé par un groupe compresseur (6) ; des serpentins de chauffe (7) sont disposés sur les parois (8) des bacs (2 et 3) ; des doseurs de bactéries (9 et 10) sont disposés au niveau des bacs (2 et 3) pour déverser et ensemencer la quantité de bactéries nécessaire ; une pompe aspirante refoulante (11) est disposée au fond du bac (2), elle aspire l'eau et la refoule vers le bac (3) pour un second traitement bactérien qui peut être plus doux ; le bac (3) comporte également une pompe aspirante refoulante (12) qui aspire l'eau traitée et la refoule vers le bac (4) qui sert à récupérer les eaux ainsi traitées à les décanter et à les analyser.  that the grease to be destroyed arrives via a pipe (1) from the station scrapers; these greases are poured into a first tank (2), which precedes a second tank (3) and a third tank (4); the tanks include oxygenation rods (5) which are supplied with compressed air by a compressor unit (6); heating coils (7) are arranged on the walls (8) of the tanks (2 and 3); bacteria feeders (9 and 10) are arranged at the level of the tanks (2 and 3) to discharge and seed the quantity of bacteria required; a pressure suction pump (11) is disposed at the bottom of the tank (2), it sucks the water and delivers it to the tank (3) for a second bacterial treatment which can be milder; the tank (3) also includes a pressure suction pump (12) which sucks the treated water and delivers it to the tank (4) which is used to recover the water thus treated, to decant it and analyze it.
FR8616785A 1986-11-28 1986-11-28 BIOLOGICAL PROCESS FOR THE TREATMENT OF VEGETABLE AND ANIMAL FAT BY BACTERIA IN PURIFICATION PLANTS AND THE IMPLEMENTATION OF SAID PROCESS Expired - Lifetime FR2607490B1 (en)

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FR8616785A FR2607490B1 (en) 1986-11-28 1986-11-28 BIOLOGICAL PROCESS FOR THE TREATMENT OF VEGETABLE AND ANIMAL FAT BY BACTERIA IN PURIFICATION PLANTS AND THE IMPLEMENTATION OF SAID PROCESS

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FR8616785A FR2607490B1 (en) 1986-11-28 1986-11-28 BIOLOGICAL PROCESS FOR THE TREATMENT OF VEGETABLE AND ANIMAL FAT BY BACTERIA IN PURIFICATION PLANTS AND THE IMPLEMENTATION OF SAID PROCESS

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FR2607490B1 FR2607490B1 (en) 1990-04-27

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372520A2 (en) * 1988-12-09 1990-06-13 Rhone-Poulenc Chimie Slime and deposits controlling process in industrial plants
EP0421223A1 (en) * 1989-10-04 1991-04-10 Achille Poglio A process and plant for disposal of organic effluents
FR2659645A1 (en) * 1990-03-13 1991-09-20 So Ge Val Sa Process for the biological degradation of fatty matter present in sewage
FR2669916A1 (en) * 1990-11-30 1992-06-05 Lyonnaise Eaux Dumez Process for the biological degradation of fats and fatty waste
WO1996005145A2 (en) * 1994-08-08 1996-02-22 Vodní Stavby Praha Disposal of waste from olive oil production
EP0723939A1 (en) * 1993-10-16 1996-07-31 Fusao Yamada Excreta deodorization method and apparatus
FR2757843A1 (en) * 1996-12-30 1998-07-03 Tombeur Michel Treatment of a fluid to remove fats and starch
US6063271A (en) * 1998-06-25 2000-05-16 Howard; Russell J. Portable waste water treatment plant
WO2002048055A1 (en) * 2000-12-14 2002-06-20 Michel Tombeur Method and apparatus for biological treatment of effluents

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR651682A (en) * 1928-01-25 1929-02-21 Dansk Gaerings Industri As Improvements to processes for the biological purification of wastewater
US3152983A (en) * 1961-12-12 1964-10-13 Socony Mobil Oil Co Inc Microbial disposal of oily wastes
US4179366A (en) * 1974-11-18 1979-12-18 Union Carbide Corporation Method for the biological purification of effluent and the plant for carrying out the process
US4288545A (en) * 1979-01-17 1981-09-08 Sybron Corporation Microbiological process for removing oleaginous material from wastewater and microbiological combination capable of same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR651682A (en) * 1928-01-25 1929-02-21 Dansk Gaerings Industri As Improvements to processes for the biological purification of wastewater
US3152983A (en) * 1961-12-12 1964-10-13 Socony Mobil Oil Co Inc Microbial disposal of oily wastes
US4179366A (en) * 1974-11-18 1979-12-18 Union Carbide Corporation Method for the biological purification of effluent and the plant for carrying out the process
US4288545A (en) * 1979-01-17 1981-09-08 Sybron Corporation Microbiological process for removing oleaginous material from wastewater and microbiological combination capable of same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372520A2 (en) * 1988-12-09 1990-06-13 Rhone-Poulenc Chimie Slime and deposits controlling process in industrial plants
EP0372520A3 (en) * 1988-12-09 1990-09-12 Oberkofler, Jorg, Dr. Dipl.-Ing. Slime and deposits controlling process in industrial plants
EP0421223A1 (en) * 1989-10-04 1991-04-10 Achille Poglio A process and plant for disposal of organic effluents
FR2659645A1 (en) * 1990-03-13 1991-09-20 So Ge Val Sa Process for the biological degradation of fatty matter present in sewage
BE1006033A3 (en) * 1990-11-30 1994-04-26 Lyonnaise Eaux Dumez Deterioration process of organic waste fats and greasy.
ES2036953A1 (en) * 1990-11-30 1993-06-01 Lyonnaise Eaux Dumez Process for the biological degradation of fats and fatty waste
FR2669916A1 (en) * 1990-11-30 1992-06-05 Lyonnaise Eaux Dumez Process for the biological degradation of fats and fatty waste
EP0723939A1 (en) * 1993-10-16 1996-07-31 Fusao Yamada Excreta deodorization method and apparatus
EP0723939A4 (en) * 1993-10-16 1997-07-23 Fusao Yamada Excreta deodorization method and apparatus
WO1996005145A2 (en) * 1994-08-08 1996-02-22 Vodní Stavby Praha Disposal of waste from olive oil production
WO1996005145A3 (en) * 1994-08-08 1996-04-25 Vodni Stavby Praha Disposal of waste from olive oil production
FR2757843A1 (en) * 1996-12-30 1998-07-03 Tombeur Michel Treatment of a fluid to remove fats and starch
US6063271A (en) * 1998-06-25 2000-05-16 Howard; Russell J. Portable waste water treatment plant
WO2002048055A1 (en) * 2000-12-14 2002-06-20 Michel Tombeur Method and apparatus for biological treatment of effluents
FR2818265A1 (en) * 2000-12-14 2002-06-21 Michel Tombeur ECO AUTOMATIC CLOSER (EFA)

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