WO1994010095A1 - Matieres minerales en vrac a pores ouverts avec microorganismes immobilises, leur fabrication et utilisation - Google Patents

Matieres minerales en vrac a pores ouverts avec microorganismes immobilises, leur fabrication et utilisation Download PDF

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Publication number
WO1994010095A1
WO1994010095A1 PCT/EP1993/002892 EP9302892W WO9410095A1 WO 1994010095 A1 WO1994010095 A1 WO 1994010095A1 EP 9302892 W EP9302892 W EP 9302892W WO 9410095 A1 WO9410095 A1 WO 9410095A1
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WO
WIPO (PCT)
Prior art keywords
open
pore
mineral bulk
pore mineral
reaction vessel
Prior art date
Application number
PCT/EP1993/002892
Other languages
German (de)
English (en)
Inventor
Dettmar Rose
Dieter Fischer
Walter Petersen
Original Assignee
Leca Deutschland Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE4235892A external-priority patent/DE4235892C2/de
Priority claimed from DE4243627A external-priority patent/DE4243627A1/de
Application filed by Leca Deutschland Gmbh filed Critical Leca Deutschland Gmbh
Priority to EP93923502A priority Critical patent/EP0665818A1/fr
Publication of WO1994010095A1 publication Critical patent/WO1994010095A1/fr

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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
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C02F3/085—Fluidized beds
    • 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
    • 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
    • B01D53/85—Biological processes with gas-solid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
    • 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
    • C02F3/025—Biological purification using sources of oxygen other than air, oxygen or ozone
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/14—Enzymes or microbial cells immobilised on or in an inorganic carrier
    • 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
    • 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

Definitions

  • the present invention relates to open-pore mineral bulk materials, a means for removing pollutants from substrates contaminated with pollutants, a method for producing open-pore mineral bulk materials, a method for cleaning materials from pollutants and the use of open-pore mineral bulk materials for cleaning pollutant-contaminated materials.
  • contaminated soils are worked up with pollutant-degrading bacteria.
  • the contaminated soil is mechanically processed and mixed with organic aggregates and coarse fractions.
  • the bacteria which are defined depending on the type of load, are multiplied in a nutrient solution and added together with this by spraying the finished soil mixture.
  • the object of the present invention is therefore to provide a means and method which do not have the aforementioned disadvantages.
  • the essence of the present invention is to be seen in applying suitable microorganisms to open-pore mineral bulk materials before they are used to remove pollutants from substances contaminated with pollutants.
  • Expanded clay, expanded shale, lava, pumice, perlite, brick chippings and mixtures of these substances are examples of open-pore mineral bulk materials that can be used according to the invention.
  • Pumice sometimes called pumice stone, can be used as pumice sand (grain sizes up to approx. 7 mm) and pumice gravel (grain size approx. 7 to 40 mm) become.
  • the perlite that can be used is also known as expanded tuff.
  • any other open-pored clay product can also be used as a carrier for immobilized microorganisms.
  • any open-pore mineral bulk material is suitable as a carrier, provided that it provides the microorganisms with a settable surface.
  • the biocatalysts are bound to the carrier by adsorption.
  • the cells adhere to the solid.
  • the porous structure makes it possible to achieve a high loading with biocatalysts and thus a high specific activity.
  • the immobilization capacity is determined by the settable surface of the carrier material and limited by a pore size range from approx. 2 ⁇ m to approx. 50 ⁇ .
  • this settable surface is approx. 6 m 2 / l. By breaking open this area is increased to approx. 50 m 2 / l. It is therefore particularly preferred to use broken expanded clay or expanded slate.
  • the pore wall area in the plant-available water storage area for broken material increases to approx. 400 m 2 / l (for the range 0.2 ⁇ m to 50 ⁇ m).
  • This open-pore mineral filler which has been immobilized with immobilized microorganisms, can be easily worked into and mixed into soils with conventional equipment, thus enabling homogeneous distribution in the substrate.
  • the open-pore mineral bulk material itself provides permanent ventilation and moisture release during the biological degradation and thus an optimal climate for the microorganisms. Due to their inert properties, the open-pore mineral bulk materials are stable in their broken form against rotting and erosion.
  • Another advantage of the object according to the invention is that it can be carried out without the addition of composts or similar organic solid additives. This gives e.g. the possibility of carrying out a biological renovation on pure building sands or gravel. Sands and gravel can be used again as buildable underground substrates or aggregates for the concrete industry after the renovation has been completed, since they remain free of cohesive or organic components.
  • microorganisms can be used that can use petroleum as a carbon source. It is important that the petroleum components are broken down or converted into harmless molecules by the bacteria. In principle, it is possible to use microorganisms that can utilize any pollutant and decompose it into harmless substances.
  • the microorganisms added are preferably bacteria. As already mentioned above, it has proven to be particularly favorable if the bacteria used can utilize hydrocarbons.
  • microorganism cultures to be used for immobilization are obtained according to common microbiological processes. For this purpose, a selective enrichment of microorganisms from the contaminated starting material takes place. It is important to test the endogenous microflora for their ability to break down the pollutant (s) to be removed. Following the selection, microorganism production is started. If available, starter cultures that are already available can of course also be used.
  • the carrier material is usually conditioned with a buffered mineral medium for two days.
  • the actual immobilization then takes place in a suitable reactor, for example a fluid mixed bed reactor (FMB reactor).
  • FMB reactor fluid mixed bed reactor
  • the reactor is filled with expanded clay and / or expanded shale and an aqueous phase (mineral medium or bacterial suspension).
  • the aqueous phase in the lower area is kept in motion by the existing Ruhr works, which results in a homogeneous liquid distribution and loading of the carrier without greater shear force.
  • the oxygen supply can take place through the use of hydrogen peroxide, for example through a 30% solution. It is advantageous to arrange the dosing station so that the dosing takes place directly at the height of the Ruhr works.
  • the reactor is favorably connected to a bio-fermenter system via a full pipe and a drain pipe, in which the pollutant-degrading microorganisms are cultivated.
  • Level compensation ensures that the bacterial suspension is transported back through the drainage pipe into the fermenter while the bacterial suspension is fed in from the biofermenter.
  • the feed from the fermenter into the reactor takes place via a suitable pump, which pumps the bacterial solution into the carrier material floating layer via a full nozzle horizontally attached in the floating expanded clay or expanded slate layer.
  • the reactor is operated under anoxic conditions. This requires a gastight construction and the entry of nitrogen, for example, to maintain the anaerobiosis of the reactor.
  • the duration of the immobilization reaction should be between 2 and 200 hours. With shorter reaction times, that is
  • the reaction time in the reactor for immobilizing the microorganisms is therefore preferably 20 to 70 hours and in particular 50 hours.
  • an immobilization efficiency (percent immobilized cells) of about 50% was determined over a period of 50 hours.
  • Expanded clay / expanded slate material loaded with microorganisms can be used immediately.
  • the possible uses specified below are mentioned as examples.
  • the loaded expanded clay or expanded shale material is introduced into wastewater or exhaust air purification systems, such as fixed bed or fluidized bed reactors, and treated until the pollutant content of the fluid has reached a predetermined limit value.
  • the soil to be treated is classified. Anthropogenic contaminants such as scrap and rubbish are sorted out. Coarse components such as stones and concrete are broken as far as they are contaminated. After thorough laboratory control, the soil is mixed with nutrients and the specific imilisate. The material is then piled up in rents. It is important to ensure that the parameters of temperature, soil moisture and nutrient content are optimally set, continuously monitored and adjusted if necessary become.
  • a favorable, constant environment for the microorganisms can be created, for example, by treating the floor in halls or tents.
  • the water supply and floor ventilation are significantly improved by the expanded clay or expanded slate material used. The consequence of this is that, depending on the amount of expanded clay or expanded slate material added, the floor rents only have to be implemented at greater intervals than rents which contain no microorganisms immobilized on expanded clay or expanded slate.
  • the minimum amount of expanded clay or expanded slate to which immobilizate is applied is preferably 10% by volume.
  • An upper limit is not critical.
  • a cost / benefit analysis has shown that a share of 25 to 30% by volume is particularly favorable.
  • water-soaked expanded clay or expanded slate material that is not loaded with immobilizate can be used.
  • expanded clay or expanded slate material loaded with microorganisms in suspension processes is due to the physical properties, e.g. low density of the suspension, particularly favorable. It has proven to be advantageous for the cleaning of sludges if they have a water content of 60 to 80% by volume.
  • the pretreated carrier shows excellent distribution behavior in sludge, is inert and can be easily separated for a further cleaning step after the cleaning process has ended.
  • a minimum amount of 5% by volume of expanded clay or expanded slate loaded with immobilizate is advantageously used. 15 to 30% by volume, in particular 25% by volume, are particularly preferred.
  • Open-pore mineral fillers can be used universally for the immobilization of aerobic and anaerobic microorganisms.
  • Open-pore mineral fillers are a pre-adapted reactor filling material in exhaust air and wastewater treatment.
  • Open-pore mineral fillers are an inexpensive and reusable carrier material for the biological cleaning of substrates.
  • Microorganisms can be contaminated more homogeneously
  • the carrier materials with immobilized microorganisms applied can be brought in using conventional earth-working machines. Good airflow is guaranteed even with a thick layer, as the open-pore mineral bulk material prevents the substrate from being compressed or eroded.
  • Microorganisms By using on open pore mineral bulk immobilized microorganisms can reduce the mechanical tillage intervals.
  • Open-pore mineral bulk materials charged with Immobilisat are a suitable catalyst for pollutant degradation and a structural improver in soil remediation within the framework of rental techniques, since the material can be used universally for all types of soil, the water supply ("buffer effect") is optimized, a selection advantage for highly specialized microorganisms the autochthonous microflora is created in the soil, an entry of easily usable, complex (undefined) substrates, as is the case with the use of straw, bark or other mulch material, is avoided, no masking of pollutants takes place, for example it is possible when using aggregates containing humic material, a structural improvement is achieved with a view to later reuse, and a permanent structural improvement is achieved in the case of cohesive soils.
  • a mixed bacterial culture from a soil sample contaminated with mineral oil was enriched in a phosphate-buffered mineral salt medium (MMF60) with the addition of 0.5% (v / v) hydrocarbon (diesel / mineral oil 1: 1).
  • the scale-up step was carried out with the addition of 0.01% (v / v) peptone and 0.2% (v / v) hydrocarbon.
  • the one used Production fermenter had a capacity of 5,000 1. It was a bubble column reactor with external circulation via a centrifugal pump.
  • the culture was carried out in a complex complete medium (TGE medium; data in g / 1: trypton 5.0 / meat extract 3.0 / glucose 1.0 / distilled water 100 ml, pH 7.0) for 2 Incubated days until the end of the logarithmic growth phase. The biomass was then centrifuged off and the bacterial pellet was transferred to a carbon-free mineral medium (MMF60). This ensured that the culture did not continue to grow. With this culture, experiments to determine the immobilization efficiency could be carried out.
  • TGE medium complex complete medium
  • MMF60 carbon-free mineral medium
  • the optical density (OD) was determined as a further parameter for the indirect cell count determination.
  • the decrease in the circulating number of cells is a measure of the immobilization of the bacteria.
  • 1 shows the determination of the optical density (OD) at 600 nm over a period of 120 h for four different expanded clay materials.
  • the significant decrease in the initial absorbance value from over 3 to values between 0.1 and Figure 2 shows that a significant portion of the bacterial suspension has been withdrawn and immobilized on the expanded clay material. Furthermore, it was found that apart from expanded clay material 3, which showed satisfactory values, excellent immobilization values could be achieved. From Fig.
  • broken expanded clay with a particle size distribution of 4 to 8 mm was again used as the carrier material.
  • the immobilization was carried out in a 30 ⁇ fluid mixed bed reactor (FMB reactor).
  • FMB reactor fluid mixed bed reactor
  • the tub of the FMB reactor was filled with 15 m ⁇ expanded clay.
  • the reactor was filled with an aqueous phase (mineral medium or bacterial suspension).
  • the aqueous phase in the lower region was kept in motion by a propeller agitator, which resulted in a homogeneous liquid distribution and loading of the carrier without greater shear force.
  • the FMB reactor was connected to the biofermenter via a filling pipe and a drain pipe. By leveling a return transport of the bacterial suspension through the Drain pipe in the fermenter with simultaneous feeding of bacterial suspension from the biofermenter guaranteed.
  • the feed from the fermenter into the FMB reactor took place via a centrifugal pump, which pumped the bacterial solution into the carrier material floating layer via a filler neck mounted horizontally in the floating expanded clay layer.
  • Another 30 m ⁇ tub is used both for washing the expanded clay material with tap water and for conditioning with mineral medium. Using an eccentric screw pump, this additional tub was installed in the system as an alternative to the bio-fermenter. The washing and conditioning of the expanded clay material was as follows.
  • the reactor pan was filled with 10 m 3 tap water. Then 15 - ⁇ expanded clay granules were blown in using a silo wagon. The reactor was then flooded with tap water. The carrier material was washed twice using the FMB reactor propeller stirrer and at the same time circulating the wash water via an eccentric screw pump. The dirty water was drained through the drain pipe system, collected in a dirty water tank and used to moisten sandy soil material (improving the grain size distribution). After the second washing process, the reactor pan was flooded with mineral medium (MMF60) and the carrier material was conditioned for two days.
  • MMF60 mineral medium
  • the immobilization procedure was as described in Example 1.
  • the oxygen supply of the bacteria in the FMB reactor was ensured by the use of 30% hydrogen peroxide.
  • the metering station was arranged so that the metering was carried out directly at the level of the propeller agitator.
  • bacteria were supplied with oxygen using a side channel compressor.
  • the immobilization process was carried out over a period of two days.
  • the expanded clay material thus obtained which is loaded with immobilized bacteria, can either be processed immediately or filled into so-called “big bags” and transported to the appropriate places of use. It is important to ensure that the material does not dry out during transport and / or storage and is used as quickly as possible.

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  • Environmental & Geological Engineering (AREA)
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Abstract

La présente invention propose des matières minérales en vrac à pores ouverts, par exemple argile expansée, schiste expansé, lave, ponce, perlite, granulat de briques concassées ainsi que leurs mélanges, sur lesquels sont appliqués des microorganismes immobilisés. Elle concerne par ailleurs un moyen permettant l'élimination de substances nocives contenues dans des substrats chargés de telles substances. Elle concerne en outre un procédé permettant d'immobiliser des microorganismes sur des matières minérales en vrac à pores ouverts. Et finalement elle concerne un procédé de nettoyage pour des matières chargées de substances nocives.
PCT/EP1993/002892 1992-10-23 1993-10-19 Matieres minerales en vrac a pores ouverts avec microorganismes immobilises, leur fabrication et utilisation WO1994010095A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93923502A EP0665818A1 (fr) 1992-10-23 1993-10-19 Matieres minerales en vrac a pores ouverts avec microorganismes immobilises, leur fabrication et utilisation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4235892.2 1992-10-23
DE4235892A DE4235892C2 (de) 1992-10-23 1992-10-23 Blähton und/oder Blähschiefer mit immobilisierten Mikroorganismen, deren Herstellung und Verwendung
DE4243627A DE4243627A1 (de) 1992-12-22 1992-12-22 Offenporige mineralische Schüttstoffe mit immobilisierten Mikroorganismen, deren Herstellung und Verwendung
DEP4243627.3 1992-12-22

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Publication Number Publication Date
WO1994010095A1 true WO1994010095A1 (fr) 1994-05-11

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692319A1 (fr) * 1994-07-15 1996-01-17 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Procédé et dispositif pour assainir un sol chimiquement pollué
WO1997019036A1 (fr) * 1995-11-17 1997-05-29 Helsinki University Licensing Ltd. Oy Procedes de compostage ameliores
EP0896830A2 (fr) * 1997-08-11 1999-02-17 UFZ-UMWELTFORSCHUNGSZENTRUM Leipzig-Halle GmbH Procédé pour la décontamination continue de gravats pollués
WO2004080620A2 (fr) * 2003-03-13 2004-09-23 Enitecnologie S.P.A. Barriere permeable bio-reactive pour la degradation de contaminants organiques
FR2855512A1 (fr) * 2003-06-02 2004-12-03 Inst Francais Du Petrole Procede de traitement d'un effluent pollue par du mtbe ou du tame utilisant la souche mycobacterium austroafricanum i-2562 fixee sur un support mineral comprenant de la perlite
CN1308302C (zh) * 2001-07-10 2007-04-04 辛塔医药品有限公司 紫杉醇增强化合物
CN102190371A (zh) * 2010-03-18 2011-09-21 华东师范大学 一种厌氧氨氧化颗粒污泥的培育方法
CZ303464B6 (cs) * 2010-12-08 2012-09-26 DEKONTA, a.s. Nosný materiál pro tvorbu biofilmu
AT16097U1 (de) * 2016-12-16 2019-01-15 Schuller Burkhard Vulkangestein-Streugut für Garten-/Landschaftsbau und Agraranwendungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181210A2 (fr) * 1984-11-08 1986-05-14 International Technology Corporation Stimulation des processus de bioxydation dans les formations souterraines
DE3816679A1 (de) * 1988-05-17 1989-11-23 Int Biotech Lab Verfahren und vorrichtung zur kontinuierlichen beseitigung von schadstoffen aus waessern
WO1990007992A1 (fr) * 1989-01-14 1990-07-26 Basf Lacke + Farben Aktiengesellschaft Procede pour la decontamination microbiologique du sol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181210A2 (fr) * 1984-11-08 1986-05-14 International Technology Corporation Stimulation des processus de bioxydation dans les formations souterraines
DE3816679A1 (de) * 1988-05-17 1989-11-23 Int Biotech Lab Verfahren und vorrichtung zur kontinuierlichen beseitigung von schadstoffen aus waessern
WO1990007992A1 (fr) * 1989-01-14 1990-07-26 Basf Lacke + Farben Aktiengesellschaft Procede pour la decontamination microbiologique du sol

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692319A1 (fr) * 1994-07-15 1996-01-17 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Procédé et dispositif pour assainir un sol chimiquement pollué
WO1997019036A1 (fr) * 1995-11-17 1997-05-29 Helsinki University Licensing Ltd. Oy Procedes de compostage ameliores
US5685891A (en) * 1995-11-17 1997-11-11 Helsinki University Licensing, Ltd. Composting methods
EP0896830A2 (fr) * 1997-08-11 1999-02-17 UFZ-UMWELTFORSCHUNGSZENTRUM Leipzig-Halle GmbH Procédé pour la décontamination continue de gravats pollués
EP0896830A3 (fr) * 1997-08-11 2000-11-02 UFZ-UMWELTFORSCHUNGSZENTRUM Leipzig-Halle GmbH Procédé pour la décontamination continue de gravats pollués
CN1308302C (zh) * 2001-07-10 2007-04-04 辛塔医药品有限公司 紫杉醇增强化合物
WO2004080620A3 (fr) * 2003-03-13 2004-12-16 Enitecnologie Spa Barriere permeable bio-reactive pour la degradation de contaminants organiques
WO2004080620A2 (fr) * 2003-03-13 2004-09-23 Enitecnologie S.P.A. Barriere permeable bio-reactive pour la degradation de contaminants organiques
EP1484288A2 (fr) * 2003-06-02 2004-12-08 Institut Francais Du Petrole Procédé de traitment d'un effluent pollué par du MTBE ou du TAME utilisant la souche Mycobacterium austroafricanum I-2562 fixée sur un support minéral comprenant de la perlite
FR2855512A1 (fr) * 2003-06-02 2004-12-03 Inst Francais Du Petrole Procede de traitement d'un effluent pollue par du mtbe ou du tame utilisant la souche mycobacterium austroafricanum i-2562 fixee sur un support mineral comprenant de la perlite
EP1484288A3 (fr) * 2003-06-02 2008-01-23 Institut Francais Du Petrole Procédé de traitment d'un effluent pollué par du MTBE ou du TAME utilisant la souche Mycobacterium austroafricanum I-2562 fixée sur un support minéral comprenant de la perlite
US7368278B2 (en) 2003-06-02 2008-05-06 Institute Francais Du Petrole Process for treating an effluent polluted by MTBE or TAME using the Mycobacterium austroafricanum I-2562 strain fixed on a mineral support comprising perlite
CN102190371A (zh) * 2010-03-18 2011-09-21 华东师范大学 一种厌氧氨氧化颗粒污泥的培育方法
CN102190371B (zh) * 2010-03-18 2013-01-30 华东师范大学 一种厌氧氨氧化颗粒污泥的培育方法
CZ303464B6 (cs) * 2010-12-08 2012-09-26 DEKONTA, a.s. Nosný materiál pro tvorbu biofilmu
AT16097U1 (de) * 2016-12-16 2019-01-15 Schuller Burkhard Vulkangestein-Streugut für Garten-/Landschaftsbau und Agraranwendungen

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