FR2531099A1 - Support for a bacterial bed - Google Patents
Support for a bacterial bed Download PDFInfo
- Publication number
- FR2531099A1 FR2531099A1 FR8213438A FR8213438A FR2531099A1 FR 2531099 A1 FR2531099 A1 FR 2531099A1 FR 8213438 A FR8213438 A FR 8213438A FR 8213438 A FR8213438 A FR 8213438A FR 2531099 A1 FR2531099 A1 FR 2531099A1
- Authority
- FR
- France
- Prior art keywords
- support
- fabric
- bacterial bed
- bed according
- frames
- 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.)
- Pending
Links
- 230000001580 bacterial effect Effects 0.000 title claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 241000894006 Bacteria Species 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 230000000696 methanogenic effect Effects 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000855 fermentation Methods 0.000 abstract description 2
- 230000004151 fermentation Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 108010077805 Bacterial Proteins Proteins 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 galvanized Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002211 methanization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- IEDVJHCEMCRBQM-UHFFFAOYSA-N trimethoprim Chemical compound COC1=C(OC)C(OC)=CC(CC=2C(=NC(N)=NC=2)N)=C1 IEDVJHCEMCRBQM-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/103—Textile-type packing
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/20—Material Coatings
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
- C12M25/06—Plates; Walls; Drawers; Multilayer plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Water Supply & Treatment (AREA)
- Sustainable Development (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Molecular Biology (AREA)
- Immunology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Clinical Laboratory Science (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
11Support pour lit bacterien
La pressente invention a pour objet un support pour lit bactérien.11Bacteria bed support
The present invention relates to a support for a bacterial bed.
Le terme "lit bactérien" tel qu'il est utilisé ciaprès désigne une concentration en bactéries en un lieu déterminé. The term "bacterial bed" as used below designates a concentration of bacteria in a determined place.
Lorsqu'on réalise la fermentation de matières organiques en vue d'une bioconversion méthanique, il est intéressant de réaliser une rétention des bactéries, afin de bénéficier d'une concentration importante de celles-ci dans le réacteur. En effet, pour ine grande masse d'effluents très fluides, la dégradation des matières organiques sera d'autant plus rapide, et la quantité de gaz produite sera d'autant plus importante, que la concentration en bacteries sera forte. Une telle concentration en bactéries permet également, pour un volume déterminé d'effluents à traiter, de diminuer l'importance des sous-ensembles fonctionnels que comprend l'installation et par conséquent de réduire le montant de l'investissement. When the fermentation of organic matter is carried out with a view to methane bioconversion, it is advantageous to carry out a retention of the bacteria, in order to benefit from a high concentration of these in the reactor. Indeed, for a large mass of very fluid effluents, the degradation of organic matter will be all the more rapid, and the quantity of gas produced will be all the more important, as the concentration of bacteria will be high. Such a concentration of bacteria also makes it possible, for a determined volume of effluents to be treated, to reduce the size of the functional sub-assemblies which the installation comprises and consequently to reduce the amount of the investment.
Une première solution permettant l'obtention d'un lit bacte'rien consiste à placer dans le fond du réacteur, un lit de cailloux poreux, qui accrochent les bactéries. A first solution enabling a bacterial bed to be obtained consists of placing a bed of porous pebbles at the bottom of the reactor, which catch the bacteria.
Cette solution présente l'inconvénient d'être très onéreuse, de ne permettre qu'une faible concentration en bacté- ries du fait de la surface de contact limitée entre les cailloux et l'effluent, et de nécessiter une conception particulière du réacteur pour que celui-ci puisse resis- ter à la charge des cailloux.This solution has the disadvantage of being very expensive, of allowing only a low concentration of bacteria due to the limited contact surface between the pebbles and the effluent, and of requiring a particular design of the reactor so that the latter can withstand the load of stones.
Une autre solution consiste à placer à l'intérieur du réacteur des supports rigides, soit en ceramique, soit en matière plastique, (du genre des anneaux de Rachig par exemple), qui possèdent un rapport surface/volume assez grand. Ces support sont intéressants lorsqu'ils permettent une fixation des bactéries.Leurs inconvénients, outre leur prix d'achat élevé, sont surtout la lenteur de leaccro- chage des bactéries qui retarde beaucoup la mise an régime de l'unité de méthanisation (plusieurs mois), le colmatage qui interdit dans ces cas le traitement des effluents contenant des taux élevés de matieres en suspension et le colt des installations lorsque les remplissages font intervenir des matériaux genre céramique en raison des poids élevés mis en jeu. Another solution consists in placing rigid supports, either ceramic or plastic, inside the reactor (such as Rachig rings for example), which have a fairly large surface / volume ratio. These supports are interesting when they allow bacteria to be fixed. Their drawbacks, in addition to their high purchase price, are above all the slowness of the bacteria catching up which considerably delays the start-up of the methanization unit (several months ), clogging which in these cases prohibits the treatment of effluents containing high levels of suspended matter and the cost of installations when the fillings involve ceramic materials due to the high weights involved.
La présente invention vise à remédier à ces incon- vônients. The present invention aims to remedy these drawbacks.
A cet effet, le support pour lit bactérien qu'elle concerne comprend une ossature sur laquelle est fixée une toile réalisée en un matériau non dégradable par les bac tories
L'irrégularité de la surface de la toile assure ltaccrochage des bactéries, ce qui permet de réaliser leur concentration et de former un lit bactérien. To this end, the support for a bacterial bed which it concerns comprises a framework on which is fixed a canvas made of a material which is not degradable by bac tories
The irregularity of the surface of the fabric ensures the attachment of bacteria, which makes it possible to achieve their concentration and to form a bacterial bed.
La toile est réalisée en fibres de verre on en une matière synthétique telle que du polychlorure de vinyle, et peut subir un traitement de surface mécanique etiou chimique, permettant d'améliorer et d'accélérer la fixation des bactéries méthanigènes. The fabric is made of glass fibers or a synthetic material such as polyvinyl chloride, and can undergo a mechanical and chemical surface treatment, making it possible to improve and accelerate the fixation of methanogenic bacteria.
Avantageusement, le chassis support du lit bactérien comprend un certain nombre de tiges parallèles servant au guidage avec maintien en tension de la toile, qui réalise au contact de celles-ci une sorte de pliage en accordéon, avec fixation sur les deux tiges dispose'es aux extrômitôs. Advantageously, the support frame of the bacterial bed comprises a number of parallel rods used for guiding with tensioning of the fabric, which achieves in contact with them a kind of folding accordion, with fixing on the two rods arranged. at the extrômitôs.
L'ôcartement entre deux surfaces de toiles sensible- ment parallèles est fonction de la teneur en matière sèche de l'effluent. Le réglage de l'écartement entre deux surfaces parallèles de toile peut etre obtenu soit en jouant sur ltôcarteinent des tiges servant au guidage de la toile, soit en jouant sur le diamètre des dites tiges. The distance between two substantially parallel fabric surfaces is a function of the dry matter content of the effluent. The adjustment of the spacing between two parallel surfaces of fabric can be obtained either by playing on ltôcarteinent rods used for guiding the canvas, or by playing on the diameter of said rods.
Selon une autre caractéristique de linvention, la trame de la toile est également choisie en fonction de la teneur en matière sèche de l'effluent à traiter. According to another characteristic of the invention, the weft of the fabric is also chosen as a function of the dry matter content of the effluent to be treated.
Coest ainsi que, si la teneur en matière sèche est de l'ordre.de 1 à 2 , la maille de la toile sera de l'or- dre de 4 mm, si la teneur en matière sèche est de l'ordre de 2 à 4 %, la maille de la toile sera de 5 mm, et si la eur en matière sèche est de l'ordre de 4 à 6%, la maille de la toile sera de 6 mm
Selon une forme d'exécution de l'invention, ce support comprend deux cadres parallèles entretoisés par un certain nombre de tiges parallèles entre elles et perpendiculaires aux cadres, disposées au moins le long de deux bords opposés des cadres, la toile passant alternativement derrière une tige située d'un côté des cadres, puis derrière une tige située au niveau du bord opposé des cadres.It is thus that, if the dry matter content is of the order of 1 to 2, the mesh of the fabric will be of the order of 4 mm, if the dry matter content is of the order of 2 at 4%, the mesh of the canvas will be 5 mm, and if the dry matter eur is of the order of 4 to 6%, the mesh of the canvas will be 6 mm
According to one embodiment of the invention, this support comprises two parallel frames braced by a number of rods parallel to each other and perpendicular to the frames, arranged at least along two opposite edges of the frames, the canvas passing alternately behind a rod located on one side of the frames, then behind a rod located at the opposite edge of the frames.
Les cadres et les tubes les reliant peuvent être réalisés en métal chromé, galvanisé, en acier inoxydable ou encore en matière systhétique par exemple. The frames and the tubes connecting them can be made of chromed metal, galvanized, stainless steel or even in systhetic material for example.
Ce dispositif présente l'intérêt d'une grande simplicité de réalisation, la forme des cadres étant adaptable à la forme du réacteur àéquiper, les cadres pouvent être de forme carrée, rectangulaire ou circulaire, en fonction de la section du réacteur In outre, ce support de lit bac- térien est extrêment léger, facile à mettre en place, tout en procurant intérieure du réacteur dans lequel est monté dans lequel il est monté. This device has the advantage of a great simplicity of embodiment, the shape of the frames being adaptable to the shape of the reactor to be equipped, the frames can be square, rectangular or circular, depending on the section of the reactor. the bac- terial bed support is extremely light, easy to install, while providing the interior of the reactor in which it is mounted in which it is mounted.
Afin de permettre sa fixation g l'intérieur du réne- teur, chaque cadre peut comporte des pattes de fixation sur la face intérieure du réacteur dans lequel est monté le support de lit bactérien. In order to allow its attachment to the interior of the reactor, each frame may have fixing lugs on the interior face of the reactor in which the bacterial bed support is mounted.
De toute façon, l'invention sera bien comprise 'a l'aide de la description qui suit en référence au dessin sché matique annexé représentant, à titre d'exemple non limita- tif, une forme d'exécution de ce support pour lit bacté- rien
Figure i en est une vue en perspective,
Figure 2 en est une vue de coté
Figure 3 en est une vue on coupe transversale selon la ligne 3-3 de figure 2
Figure 4 est une vue de détail et à échelle agrandie de 19assemblage d'une tige sur les deux cadres0 Le s support de lit bactérien représenté au dessin possède une forme générale parallélépipédique, correspondant à la forme d'un réacteur (2) à équiper, représenté an traits mixtes au dessin. Ce support de lit bactérien est constitué par une ossature, comprenant deux cadres metalliques parallèles, à savoir un cadre supérieur (3) et un cadre inférieur (4) chacun de section rectangulaire. Le cadre supérieur (3) est équipé d'un certain nombre de pattes de fixation (a) sur la face interne du réacteur. In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the accompanying diagrammatic drawing representing, by way of nonlimiting example, an embodiment of this support for bacteria bed. - nothing
Figure i is a perspective view,
Figure 2 is a side view
Figure 3 is a cross-sectional view along line 3-3 of Figure 2
FIG. 4 is a detail view and on an enlarged scale of assembly of a rod on the two frames. The bacterial bed support shown in the drawing has a generally parallelepipedal shape, corresponding to the shape of a reactor (2) to be fitted, shown in mixed lines in the drawing. This bacterial bed support is constituted by a frame, comprising two parallel metal frames, namely an upper frame (3) and a lower frame (4) each of rectangular section. The upper frame (3) is equipped with a number of fixing lugs (a) on the internal face of the reactor.
Les deux cadres (3) et (4) sont entretoisés par un certain nombre de tiges (6) parallèles entre elles, et perpendiculaires au plan des deux cadres. il est a noter que les tiges (6) entretoisent les deux cadres au niveau de deux bords opposés de ceux-ci, correspondant aux petits cotés du rectangle. The two frames (3) and (4) are braced by a number of rods (6) parallel to each other, and perpendicular to the plane of the two frames. it should be noted that the rods (6) brace the two frames at two opposite edges thereof, corresponding to the short sides of the rectangle.
Les tiges (6) servent au guidage et au maintien en tension, avec fixation à ses extrémités, d'une toile (7) réalisée en une matière résistant aux bactéries, telle qu'en fibres de verre ou en une matière synthétique, telle que du polychlorure de vinyle. The rods (6) are used for guiding and maintaining tension, with fixing at its ends, of a fabric (7) made of a material resistant to bacteria, such as glass fibers or a synthetic material, such as polyvinyl chloride.
Comme montré notamment aux figures 1 et 3, la toile (7) subit par passage au contact des tiges (6) une sorte de pliage en accordéon. As shown in particular in Figures 1 and 3, the fabric (7) undergoes by passing in contact with the rods (6) a kind of folding accordion.
il est intéressant de noter que la surface d'échange entre la toile (7) et l'effluent traversant le réacteur (2) est extrtmement importante, ce qui favorise ltaccro- chage des bactéries, notamment en raison de la rugosité de la toile. it is interesting to note that the exchange surface between the fabric (7) and the effluent passing through the reactor (2) is extremely large, which promotes the attachment of bacteria, in particular due to the roughness of the fabric.
Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante, en fournissant un support pour lit bactérien, de conception extrêmement simple, très léger, et pouvant sàdapter a des réacteurs possèdant des formes très diverses. As is apparent from the above, the invention brings a great improvement to the existing technique, by providing a support for a bacterial bed, of extremely simple design, very light, and capable of adapting to reactors having very diverse forms.
Comme il va de soi, ltinvention ne se limite pas à la seule forme d'exécution de ce support pour lit bactérien décrite ci-dessus à titre dèxemple; elle en embrasse au contraire toutes les variantes dexécution. It goes without saying that the invention is not limited to the sole embodiment of this support for bacterial bed described above by way of example; on the contrary, it embraces all variants of execution.
C1 est ainsi notamment que la forme de l'ossature pourrait entre telle que la toile ne subisse pas un pliage accordéon, mais occupe une forme différente, telle qu'un enroulement en spi rale par exemple, sans que l Bon sorte pour autant du cadre de l'invention C1 is thus in particular that the shape of the framework could between such that the fabric does not undergo an accordion folding, but occupies a different shape, such as a spiral winding for example, without the Good leaving the frame of invention
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8213438A FR2531099A1 (en) | 1982-07-27 | 1982-07-27 | Support for a bacterial bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8213438A FR2531099A1 (en) | 1982-07-27 | 1982-07-27 | Support for a bacterial bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2531099A1 true FR2531099A1 (en) | 1984-02-03 |
Family
ID=9276526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8213438A Pending FR2531099A1 (en) | 1982-07-27 | 1982-07-27 | Support for a bacterial bed |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2531099A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590269A1 (en) * | 1985-11-21 | 1987-05-22 | Ciden | Support for a bacterial bed |
| FR2617865A1 (en) * | 1987-07-10 | 1989-01-13 | Elf Aquitaine | IMPROVED PROCESS AND DEVICE FOR THE CULTURE OF MICROORGANISMS, AND THEIR USE, IN PARTICULAR IN THE PRODUCTION OF LIGNINASE |
| EP0486140A1 (en) * | 1990-10-05 | 1992-05-20 | Thermal Efficiency, Inc | Anaerobic digester |
| WO2012005833A1 (en) * | 2010-06-29 | 2012-01-12 | Innovative Cost Solutions, Inc. | Organic substrate treatment system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE561479C (en) * | 1930-12-31 | 1932-10-14 | Friedrich Ernst Schimrigk Dr I | Immersion body for biological wastewater treatment |
| FR2269498A1 (en) * | 1974-05-03 | 1975-11-28 | Hoechst Ag | Trickling bodies for waste water purification - consisting of fabric sheets of synthetic filament and-or staple fibre yarns |
-
1982
- 1982-07-27 FR FR8213438A patent/FR2531099A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE561479C (en) * | 1930-12-31 | 1932-10-14 | Friedrich Ernst Schimrigk Dr I | Immersion body for biological wastewater treatment |
| FR2269498A1 (en) * | 1974-05-03 | 1975-11-28 | Hoechst Ag | Trickling bodies for waste water purification - consisting of fabric sheets of synthetic filament and-or staple fibre yarns |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590269A1 (en) * | 1985-11-21 | 1987-05-22 | Ciden | Support for a bacterial bed |
| FR2617865A1 (en) * | 1987-07-10 | 1989-01-13 | Elf Aquitaine | IMPROVED PROCESS AND DEVICE FOR THE CULTURE OF MICROORGANISMS, AND THEIR USE, IN PARTICULAR IN THE PRODUCTION OF LIGNINASE |
| EP0300867A3 (en) * | 1987-07-10 | 1989-02-15 | Societe Nationale Elf Aquitaine | Process and apparatus for the culture of microorganisms, and use, particularly in the production of ligninase |
| EP0486140A1 (en) * | 1990-10-05 | 1992-05-20 | Thermal Efficiency, Inc | Anaerobic digester |
| WO2012005833A1 (en) * | 2010-06-29 | 2012-01-12 | Innovative Cost Solutions, Inc. | Organic substrate treatment system |
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