DE29621395U1 - A biofilter operated with plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandry - Google Patents
A biofilter operated with plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandryInfo
- Publication number
- DE29621395U1 DE29621395U1 DE29621395U DE29621395U DE29621395U1 DE 29621395 U1 DE29621395 U1 DE 29621395U1 DE 29621395 U DE29621395 U DE 29621395U DE 29621395 U DE29621395 U DE 29621395U DE 29621395 U1 DE29621395 U1 DE 29621395U1
- Authority
- DE
- Germany
- Prior art keywords
- filter medium
- wash
- exhaust air
- chamber
- filter
- 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.)
- Expired - Lifetime
Links
- 239000012876 carrier material Substances 0.000 title claims description 7
- 238000004887 air purification Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 244000005700 microbiome Species 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 235000015097 nutrients Nutrition 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 239000013505 freshwater Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000011362 coarse particle Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000005260 corrosion Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001771 impaired effect Effects 0.000 claims 1
- 230000009965 odorless effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 239000005416 organic matter Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 239000011800 void material Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000002361 compost Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 235000007575 Calluna vulgaris Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Materials (AREA)
Description
• ··
Ein mit Kunststoffkörpern als Filtermedium bzw. Trägermaterial betriebener Biofilter zur biologischen Abluftireinigung in der TierhaltungA biofilter using plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandry
Biofilter üblicher Bauarten benutzen vorwiegend als Trägermaterial Komposte (Müll-, Baumrindenkomposte oder Komposte sonstigen Ursprungs), Fasertorfund Heidekraut sowie deren Mischungen untereinander.Biofilters of conventional designs mainly use compost (garbage, tree bark compost or compost of other origin), fibrous peat and heather as well as mixtures of these as carrier material.
Die luftverunreinigten Stoffe aus den Abgasen werden auf der Oberfläche der Trägersubstanz sorbiert und durch Mikroorganismen abgebaut.The air pollutants from the exhaust gases are sorbed on the surface of the carrier substance and broken down by microorganisms.
Bestand und Aktivität der Mikroorganismen sind nur dann optimal gewährleistet, wenn in der Schicht bestimmte Milieubedingungen (Feuchtigkeit, pH-Wert, Sauerstoffgehalt, Temperatur, Nährstoffe usw.) innerhalb bestimmter Grenzen eingehalten werden.The existence and activity of microorganisms can only be optimally guaranteed if certain environmental conditions (humidity, pH value, oxygen content, temperature, nutrients, etc.) are maintained within certain limits in the layer.
Da die Mikroorganismen von Änderungen ihrer Lebensbedingungen beeinflußt werden, ist bei Inbetriebnahme oder bei Veränderungen der Betriebszustände u.U. mit hohen Anpassungenszeiten zu rechnen (siehe VDI-Richtlinien 3477).Since the microorganisms are influenced by changes in their living conditions, long adaptation times may be required during commissioning or when the operating conditions change (see VDI guidelines 3477).
Durch die Beschaffenheit des Trägermaterials entstehen hohe Druckverluste (maximale Schütthöhen von 1,5m), die mit zusätzlicher Energie (erhöhte Ventilatorleistung) ausgeglichen werden müssen. Die hohen Verrottungsgeschwindigkeiten und die damit verbundenen kurzen Standzeiten sind durch die kurzen Wartungsintervalle, die das Aufbringen von neuen Trägermaterialen beinhalten, gekennzeichnet.The nature of the carrier material results in high pressure losses (maximum filling heights of 1.5 m), which must be compensated for with additional energy (increased fan power). The high rotting speeds and the associated short service lives are characterized by the short maintenance intervals, which include the application of new carrier materials.
Beim Einsatz von herkömmlichen Trägermaterialen in Biowäschern werden derzeit Geruchsabscheidungen von bis zu 90 % sowie Ammoniakabscheidungen von bis zu 35 % erreicht. Die Kosten liegen aufgrund der hohen Energie und Wasserverbräuche bei ca. 15,- bis 25,-- DM je Mastschwein (Forschungsprojekt: „Minderung von Emissionen aus Stallanlagen", der Universität Hohenheim).When using conventional carrier materials in biowashers, odor removal rates of up to 90% and ammonia removal rates of up to 35% are currently achieved. Due to the high energy and water consumption, the costs are around 15 to 25 DM per fattening pig (research project: "Reducing emissions from livestock facilities", at the University of Hohenheim).
Der in den Schutzansprüchen 1-12 angegebenen Erfindung liegt das Problem zugrunde, einen Biofilter zu schaffen, der bei hoher Geruchs- und Ammoniakminderung die Betriebskosten, wie Energie- und Wasserverbrauch, sowie durch vereinfachte Bauweise, die Baukosten reduziert. Weiterhin soll durch die Wahl der Bauelemente, die Verfahrensvereinfachung, den wartungsarmen Betrieb und durch automatische Steuerungen der Einsatz in den verschiedenartigsten Bau- und Anwendungsbereiche ermöglicht werden.The invention specified in claims 1-12 is based on the problem of creating a biofilter that reduces operating costs, such as energy and water consumption, and construction costs through simplified construction while achieving a high reduction in odor and ammonia. Furthermore, the choice of components, the simplification of the process, low-maintenance operation and automatic controls should enable use in a wide variety of construction and application areas.
Diese Probleme werden mit den Schutzansprüchen 1-12 aufgeführten Merkmalen wie:These problems are addressed by features listed in claims 1-12 such as:
Einsatz von Spezial Kunststoffkörper als Trägermaterial Schütthöhen von bis zu 5m
loser SchüttungUse of special plastic bodies as carrier material Dumping heights of up to 5m
loose bulk
reine Punkt- und Strichberührungen der Kunststoffkörper Diffiisorartige Bauweisepure point and line contact of the plastic body diffuser-like construction
Manuelle und / oder Vollautomatische Elektroniksteuerung vereinfachte SteuerungsbauweiseManual and / or fully automatic electronic control simplified control design
eine der Umwälzpumpe vorgeschaltetem Mehrkammersystem Intervallbefeuchtung
Vorbefeuchtunga multi-chamber system upstream of the circulation pump interval humidification
Pre-humidification
Einsatz von Streifenvorhängen zur Strömungsregulierung Vorhalteeinrichtung zur Nährstoffversorgung
gelöst.Use of strip curtains for flow regulation Provision device for nutrient supply
solved.
Mit der Erfindung wird nach Schutzanspruch 1-12 folgendes erreicht:The invention achieves the following according to claims 1-12:
Durch die spezielle Oberfläche (angeraut und wasseranziehend) der Kunststoffkörper ist eine hohe Anhaftung von Mikroorganismen möglich. Die große Oberfläche von > 90 m2/m3 kann als Mikroorganismenbesatz genutzt werden. Die Oberfläche eignet sich besonders durch die gute Anhaftung von organischer Masse, die zur Versorgung von Mikroorganismen notwendig ist. Durch den geringen Eigengeruch wird keine zusätzliche Emission hervorgerufen. Die Verrottungsgeschwindigkeit ist minimal und somit sind lange Standzeiten und große Wartungsintervalle möglich.The special surface (roughened and water-attracting) of the plastic body allows a high level of adhesion of microorganisms. The large surface of > 90 m 2 /m 3 can be used as a microorganism population. The surface is particularly suitable due to the good adhesion of organic mass, which is necessary to supply microorganisms. The low inherent odor means that no additional emissions are caused. The rotting speed is minimal, which means long service lives and long maintenance intervals are possible.
Aufgrund seines geringen Schüttgewichtes (< 50 kg / m3) treten geringe statische Probleme auf. Es sind somit verschiedenartige Bauausführungen möglich (z. B. Dachintegration), Durch minimale Druckverluste auch bei hoher Schüttung von bis zu 5m (HobJraumvolumen > 80%) ist der Einsatz von herkömmlichen Axialventilatoren aus der Stallentlüftung möglich. Es wird somit kein zusätzlicher Energiebedarf für die Stallentlüftung benötigt.Due to its low bulk density (< 50 kg / m 3 ), static problems are minimal. This means that different types of construction are possible (e.g. roof integration). Due to minimal pressure losses even with high bulk density of up to 5m (bulk volume > 80%), the use of conventional axial fans from the stable ventilation is possible. This means that no additional energy is required for the stable ventilation.
Durch die lose Schüttung ist eine sehr gute homogene Dradnage und Sauerstoffversorgung möglich. Somit ist eine optimale Ausnutzung des Filtermediums bzw. der Mikroorganismen gewährleistet. Folglich können genaue Anlagengrößenauslegungen erfolgen.The loose filling enables very good, homogeneous drainage and oxygen supply. This ensures optimal use of the filter medium and microorganisms. As a result, precise system size designs can be made.
Da die einzelnen Kunststofikörper untereinander nur Punkt oder Strichberührungen haben, treten nur sehr geringe Oberflächenverluste auf.Since the individual plastic bodies only have point or line contact with each other, only very small surface losses occur.
Die Strömungsgeschwindigkeiten der Stallabluft wird herabgesetzt. Dadurch wird die Verweilzeit der Stallabluft im Filtermedium vergrößert und somit die Wirkzeit der Mikroorganismen erhöht.The flow speed of the stable exhaust air is reduced. This increases the dwell time of the stable exhaust air in the filter medium and thus increases the duration of the microorganisms’ activity.
Durch elektronische Steuerung wird der optimale Arbeitsbereich automatisch angefahren. Dadurch werden Energie und Kosten gespart und ein wartungsarmer Betrieb geschaffen.The optimal working area is automatically approached through electronic control. This saves energy and costs and creates low-maintenance operation.
Die übersichtliche und einfache Bedienung der Anlage wird gewährleistet.The clear and simple operation of the system is guaranteed.
Die Trennung von groben Schwebe- und Sinkstoffen aus dem im Kreislauf geführten Waschwasser verhindert die Verstopfung der Befeuchtungsdüsen. Dadurch werden Störungen vermieden und ein wartungsarmer Betrieb gewährleistet.The separation of coarse suspended and settling particles from the circulating wash water prevents the humidification nozzles from becoming clogged. This avoids malfunctions and ensures low-maintenance operation.
Energie- und Wasserkosten für die Befeuchtung der Abluft und des Filtermediums sind geringEnergy and water costs for humidifying the exhaust air and the filter medium are low
Anreicherung der Abluft mit Waschwasser im gesättigten Zustand (100% Luftfeuchtigkeit) dient als Vorreinigung zur Auswaschung der groben Partikel aus der Stalluft. Zusätzlich wird durch die Anreicherung eine erhöhte Tätigkeit der Mikroorganismen im Filtermedium erzielt. Folglich wird ein erhöhter ReinigungsefFekt erzielt.Enrichment of the exhaust air with washing water in a saturated state (100% humidity) serves as a pre-cleaning process to wash out the coarse particles from the stable air. In addition, the enrichment results in increased activity of the microorganisms in the filter medium. As a result, an increased cleaning effect is achieved.
Durch die homogene Luftverteilung und die bodennahe Einleitung der Abluft in der Filterkammer wird der Reinigungseffekt erhöht.The cleaning effect is increased by the homogeneous air distribution and the introduction of the exhaust air into the filter chamber close to the ground.
Bei geringer nährstofihaltiger Abluft wird das Filtermedium und die darin anhafteten Mikroorganismen mit zusätzlichen Nährstoffen versorgt, um somit die volle Funktionstüchtigkeit der Abluftreinigung sicherzustellen.If the exhaust air contains a low level of nutrients, the filter medium and the microorganisms adhering to it are supplied with additional nutrients in order to ensure that the exhaust air purification system functions fully.
Die Abluft aus dem Stall wird durch den Axialventilator (10) in die Vorwaschkammer (14) geblasen. Dort wird im Intervall (je nach Abluftmenge) die Abluft über Vorwaschdüsen (7) angefeuchtet. Durch den Streifenvorhang (5) wird die Abluft gleichmäßig (homogen) in Bodennähe der Filterkammer (15) eingeleitet. Durch den Diflusoreffekt in der Filterkammer (15) nimmt die Strömungsgeschwindigkeit ab. Die Abluft steigt aufwärts durch das Filtermedium (1) das mit Mikroorganismen angereichert ist. Durch Anfeuchten des Filtermaterials (1) über die Filterdüsen (6) im Intervall, wird den Mikroorganismen im Filtermedium (1) ein optimaler Lebensraum geschaffen. Je nach Schütthöhe (5) und Abluftgeschwindigkeit haben die Mikroorganismen Zeit, die Geruchsstoffe aus der Abluft zu verarbeiten. Nach einer gewissen Verweildauer der Abluft; im Filtermedium (1) tritt die dann gereinigte Abluft in die freie Atmosphäre ein.The exhaust air from the stable is blown into the pre-wash chamber (14) by the axial fan (10). There, the exhaust air is moistened at intervals (depending on the amount of exhaust air) via pre-wash nozzles (7). The strip curtain (5) feeds the exhaust air evenly (homogeneously) close to the floor of the filter chamber (15). The flow speed decreases due to the diffuser effect in the filter chamber (15). The exhaust air rises upwards through the filter medium (1) which is enriched with microorganisms. By moistening the filter material (1) via the filter nozzles (6) at intervals, an optimal habitat is created for the microorganisms in the filter medium (1). Depending on the filling height (5) and the exhaust air speed, the microorganisms have time to process the odorous substances from the exhaust air. After the exhaust air has remained in the filter medium (1) for a certain period of time, the cleaned exhaust air enters the open atmosphere.
Die Steuereinheit (12) die ihre elektr. Kenndaten über Meßsensoren (11) bzw. über den Stromverbrauch des Axialventilators (10) erhält, steuert die Umlaufpumpe (3), die Schlammpumpe (4) und die Frischwasserpumpe (9) je nach Voreinstellung an. In Abhängigkeit der Verdunstung und der Aufsalzung des Waschwassers (13) wird über die Schlammpumpe (4) eine definierte Menge an Waschwasser (13) in den Güllekanal des Stalls abgepumpt bzw. über die Frischwasserpumpe frisches Wasser über die Frischwasserdüsen (8) in die Vorwaschkammer (14) gespritzt.The control unit (12), which receives its electrical data via measuring sensors (11) or via the power consumption of the axial fan (10), controls the circulation pump (3), the sludge pump (4) and the fresh water pump (9) depending on the pre-setting. Depending on the evaporation and the salinity of the washing water (13), a defined amount of washing water (13) is pumped into the slurry channel of the stable via the sludge pump (4) or fresh water is sprayed into the pre-wash chamber (14) via the fresh water pump via the fresh water nozzles (8).
Um Verstopfungen der Vorwaschdüsen (7) und der Filterdüsen (6) vorzubeugen, ist der Umlaufpumpe (3) ein Mehrkammersystem (17) vorgeschaltet, damit Schwebe- und Sinkstoffe des Waschwassers nicht in den Umlaufkreislauf gelangen.To prevent blockages of the pre-wash nozzles (7) and the filter nozzles (6), a multi-chamber system (17) is installed upstream of the circulation pump (3) so that suspended and settling matter in the wash water does not enter the circulation circuit.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29621395U DE29621395U1 (en) | 1996-12-10 | 1996-12-10 | A biofilter operated with plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29621395U DE29621395U1 (en) | 1996-12-10 | 1996-12-10 | A biofilter operated with plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandry |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29621395U1 true DE29621395U1 (en) | 1997-03-13 |
Family
ID=8033066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE29621395U Expired - Lifetime DE29621395U1 (en) | 1996-12-10 | 1996-12-10 | A biofilter operated with plastic bodies as a filter medium or carrier material for biological exhaust air purification in animal husbandry |
Country Status (1)
Country | Link |
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DE (1) | DE29621395U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2960443A1 (en) * | 2010-05-27 | 2011-12-02 | Algotec Internat | Biofiltration installation for biofilteration of volatile organic compounds from gas effluent in e.g. oil refining industry, has storage unit storing micro-organisms and/or nutriments contained in solution and distributed regularly |
DE10157321B4 (en) * | 2001-11-23 | 2012-03-22 | Störk-Küfers Inh. Hans Störk e.K. | Process for cleaning exhaust air |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543937A (en) * | 1968-08-02 | 1970-12-01 | Joseph M Choun | Filter media |
DE3217923A1 (en) * | 1982-05-13 | 1983-11-17 | Ceilcote Korrosionstechnik GmbH, 6081 Biebesheim | METHOD AND DEVICE FOR PURIFYING EXHAUST AIR |
DE3227678A1 (en) * | 1982-07-24 | 1984-01-26 | Bayer Ag, 5090 Leverkusen | METHOD FOR BIOLOGICAL PURIFICATION OF EXHAUST AIR |
DE3341374A1 (en) * | 1983-11-15 | 1985-05-23 | Eberhard 8930 Schwabmünchen Friebe | Exhaust air cleaning apparatus |
DE3611582A1 (en) * | 1986-04-07 | 1987-10-08 | Herding Entstaubung | CARRIER MATERIAL FOR IMOBILIZING MICROORGANISMS |
DE9010082U1 (en) * | 1990-07-03 | 1991-11-07 | Hebel Alzenau GmbH & Co, 63755 Alzenau | Biological exhaust gas purification system, in particular exhaust air purification system |
DE9115115U1 (en) * | 1991-12-05 | 1992-02-06 | H. Seus GmbH & Co. Systemtechnik KG, 2940 Wilhelmshaven | Biofilter system |
DE4032234A1 (en) * | 1990-10-11 | 1992-04-16 | Kottwitz Max Anton Dipl Ing Di | Gas purifying filter device - with filter bed contg. support bodies to prevent settling |
DE9304082U1 (en) * | 1993-03-19 | 1993-07-08 | S A P - Sanierungsanlagenprojektierungsgesellschaft Grimma mbH, O-7240 Grimma | Biofilter for air purification |
DE9203062U1 (en) * | 1992-03-09 | 1993-07-15 | Schönhammer, Johann, 8317 Mengkofen | Biological exhaust air scrubber |
DE9317300U1 (en) * | 1993-11-05 | 1994-01-27 | Otto, Annegret, Dipl.-Ing., 12557 Berlin | Textile material as a carrier and settlement surface for microorganisms for aerobic and anaerobic wastewater and gas purification and a composite receptacle |
DE9320360U1 (en) * | 1993-06-30 | 1994-08-25 | Müller Elastics GmbH, 51674 Wiehl | Filling compound for bioreactors |
DE9414406U1 (en) * | 1994-09-06 | 1994-11-17 | Envicon Klärtechnik Verwaltungsgesellschaft mbH, 46537 Dinslaken | Support frame for biological filter material |
-
1996
- 1996-12-10 DE DE29621395U patent/DE29621395U1/en not_active Expired - Lifetime
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543937A (en) * | 1968-08-02 | 1970-12-01 | Joseph M Choun | Filter media |
DE3217923A1 (en) * | 1982-05-13 | 1983-11-17 | Ceilcote Korrosionstechnik GmbH, 6081 Biebesheim | METHOD AND DEVICE FOR PURIFYING EXHAUST AIR |
DE3227678A1 (en) * | 1982-07-24 | 1984-01-26 | Bayer Ag, 5090 Leverkusen | METHOD FOR BIOLOGICAL PURIFICATION OF EXHAUST AIR |
DE3341374A1 (en) * | 1983-11-15 | 1985-05-23 | Eberhard 8930 Schwabmünchen Friebe | Exhaust air cleaning apparatus |
DE3611582A1 (en) * | 1986-04-07 | 1987-10-08 | Herding Entstaubung | CARRIER MATERIAL FOR IMOBILIZING MICROORGANISMS |
DE9010082U1 (en) * | 1990-07-03 | 1991-11-07 | Hebel Alzenau GmbH & Co, 63755 Alzenau | Biological exhaust gas purification system, in particular exhaust air purification system |
DE4032234A1 (en) * | 1990-10-11 | 1992-04-16 | Kottwitz Max Anton Dipl Ing Di | Gas purifying filter device - with filter bed contg. support bodies to prevent settling |
DE9115115U1 (en) * | 1991-12-05 | 1992-02-06 | H. Seus GmbH & Co. Systemtechnik KG, 2940 Wilhelmshaven | Biofilter system |
DE9203062U1 (en) * | 1992-03-09 | 1993-07-15 | Schönhammer, Johann, 8317 Mengkofen | Biological exhaust air scrubber |
DE9304082U1 (en) * | 1993-03-19 | 1993-07-08 | S A P - Sanierungsanlagenprojektierungsgesellschaft Grimma mbH, O-7240 Grimma | Biofilter for air purification |
DE9320360U1 (en) * | 1993-06-30 | 1994-08-25 | Müller Elastics GmbH, 51674 Wiehl | Filling compound for bioreactors |
DE9317300U1 (en) * | 1993-11-05 | 1994-01-27 | Otto, Annegret, Dipl.-Ing., 12557 Berlin | Textile material as a carrier and settlement surface for microorganisms for aerobic and anaerobic wastewater and gas purification and a composite receptacle |
DE9414406U1 (en) * | 1994-09-06 | 1994-11-17 | Envicon Klärtechnik Verwaltungsgesellschaft mbH, 46537 Dinslaken | Support frame for biological filter material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10157321B4 (en) * | 2001-11-23 | 2012-03-22 | Störk-Küfers Inh. Hans Störk e.K. | Process for cleaning exhaust air |
FR2960443A1 (en) * | 2010-05-27 | 2011-12-02 | Algotec Internat | Biofiltration installation for biofilteration of volatile organic compounds from gas effluent in e.g. oil refining industry, has storage unit storing micro-organisms and/or nutriments contained in solution and distributed regularly |
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