DE19954643A1 - Floating oil binder for removing oil and fat spills from water or solid surfaces comprises from tanned fibrous proteins or scrap leather, carrying immobilized microorganism to break down adsorbed oil - Google Patents
Floating oil binder for removing oil and fat spills from water or solid surfaces comprises from tanned fibrous proteins or scrap leather, carrying immobilized microorganism to break down adsorbed oilInfo
- Publication number
- DE19954643A1 DE19954643A1 DE19954643A DE19954643A DE19954643A1 DE 19954643 A1 DE19954643 A1 DE 19954643A1 DE 19954643 A DE19954643 A DE 19954643A DE 19954643 A DE19954643 A DE 19954643A DE 19954643 A1 DE19954643 A1 DE 19954643A1
- Authority
- DE
- Germany
- Prior art keywords
- oil
- oils
- oil binder
- binder
- microorganisms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/001—Treatment of dispersed oil or similar pollution on roads, for instance devices for applying treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3028—Granulating, agglomerating or aggregating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4856—Proteins, DNA
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Medicinal Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Public Health (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
Gegenstand dieser Erfindung ist die Herstellung eines Ölbindemittels auf der Basis von Faserproteinen in Kombination mit ölabbauenden Mikroorganismen sowie dessen Einsatz im Bereich der Dekontamination von ölverschmutzten festen Oberflächen und wässrigen Flüssigkeiten.The object of this invention is the production of an oil binder on the basis of fiber proteins in combination with oil-degrading microorganisms as well its use in the field of decontamination of oil-contaminated solid Surfaces and aqueous liquids.
Ölbindemittel werden in verschiedenen Industriebereichen in großen Mengen zum Aufsaugen von ausgelaufenem Öl auf Böden eingesetzt. Feuerwehren und Wasserwachten setzen Ölbindemittel bei Ölunfällen auf Land und Wasser ein. Die auf dem Markt befindlichen Ölbindemittel werden aus PUR-Granulaten oder Phenolharzen hergestellt und sind kaum oder gar nicht schwimmfähig. Eigene Versuche zeigten nun, dass die hydrophoben Eigenschaften bestimmter faserbildender Proteine wie z. B. Collagen, Gelantine, Casein oder Keratin verstärkt werden können, wenn sie mit Substanzen wie Chrom(III)-sulfat, Kalium- Aluminiumsulfat oder Gerbstoffen wie Tannin behandelt werden. Die chemischen Vorgänge sind recht komplex und haben gemein, dass eine Vernetzung der Proteinfasern und damit eine Hydrophobierung und Stabilisierung erfolgt. Ein weiterer resultierender, sehr wichtiger Effekt der chemischen Behandlung ist die Verbesserung der Schwimmfähigkeit der Produkte.Oil binders are used in large quantities in various industrial sectors Used to suck up leaking oil on floors. Fire brigades and Water guards use oil binding agents in oil spills on land and water. The oil binders on the market are made from PUR granules or Phenolic resins are produced and are hardly or not buoyant. Our own experiments have now shown that the hydrophobic properties of certain fiber-forming proteins such. B. collagen, gelatin, casein or keratin reinforced if they are mixed with substances such as chromium (III) sulfate, potassium Aluminum sulfate or tannins like tannin can be treated. The chemical Processes are quite complex and have in common that a networking of Protein fibers and thus hydrophobization and stabilization takes place. Another the resulting, very important effect of chemical treatment is Improve the buoyancy of the products.
Die chemischen Modifikationen wirken wie folgt:
The chemical modifications work as follows:
- - Chrom(III)-sulfat führt zur Bildung zweikerniger Chromkomplexe zwischen zwei Carboxylgruppen von Aminosäuren im Proteingerüst.- Chromium (III) sulfate leads to the formation of dinuclear chromium complexes between two Carboxyl groups of amino acids in the protein scaffold.
- - Tannine bilden Wasserstoffbrücken zwischen den phenolischen Anteilen und den Aminosäuren im Proteingerüst. Carboxylgruppen des Tannins bilden salzartige Verbindungen mit den freien Aminogruppen. Aldehydgruppen reagieren besonders mit der Aminogruppe des Lysins.- Tannins form hydrogen bonds between the phenolic components and the amino acids in the protein scaffold. Form carboxyl groups of tannin salt-like compounds with the free amino groups. Aldehyde groups react particularly with the amino group of the lysine.
Weiterhin zeigte sich, dass Granulate aus Rohstoffen wie Federn und Haaren, die aus den o. g. Proteinen bestehen, in gleicher Weise behandelt werden können und gleiche Eigenschaften entwickeln.It was also shown that granules made from raw materials such as feathers and hair from the above Proteins exist, can be treated in the same way and develop the same characteristics.
Recycling-Produkte wie Granulate aus Altleder und Altschuhen, deren Lederanteile im Allgemeinen schon gegerbt sind, zeigen auch ohne weitere chemische Behandlung hervorragende Eigenschaften hinsichtlich Ölaufnahme und Schwimmfähigkeit. Versuche mit diesen Recycling-Produkten, bei denen Erdöl, Getriebeöl oder Altöle auf die Wasseroberfläche aufgegeben wurden, zeigten, dass diese Granulate das aufschwimmende Öl selektiv und nahezu vollständig aus dem Wasser entfernen. Die mit Öl beladenen Granulat-Teilchen sinken auch nicht auf den Grund der Gefäße. Die Eigenschaften hinsichtlich Ölaufnahmekapazität ließen sich durch chemische Modifizierung mit Chrom(III)-sulfat, Kalium-Aluminiumsulfat oder Gerbstoffen noch verbessern. Recycling products such as granules from old leather and old shoes, their leather parts in general are already tanned, even without any other chemical Treatment excellent properties in terms of oil absorption and Buoyancy. Try these recycling products that use petroleum, Gear oil or waste oils that were placed on the water surface showed that These granules selectively and almost completely remove the floating oil from the Remove water. The granulate particles loaded with oil do not sink to the Bottom of the vessels. The properties with regard to oil absorption capacity could be by chemical modification with chromium (III) sulfate, potassium aluminum sulfate or Improve tannins.
Die bisher auf dem Markt befindlichen Produkte erfüllen nur jeweils Teile der
Anforderungen für den praktischen Einsatz von Ölbindemitteln, die da sind:
The products previously on the market only meet parts of the requirements for the practical use of oil binders, which are:
- - bei Bodenunebenheiten sollte das Öl auch aus kleinen Poren aufgesaugt werden- If the floor is uneven, the oil should also be sucked out of small pores become
- - das Produkt muss im Wasser schwimmfähig sein- The product must float in water
- - es muss eine hohe Aufnahmekapazität für Öle verschiedenster Art aufweisen- It must have a high absorption capacity for a wide variety of oils
- - in Gegenwart von Wasser sollte Öl so selektiv wie möglich aufgenommen werden- In the presence of water, oil should be absorbed as selectively as possible become
- - bei Einsatz auf Straßen sollte das Mittel einen Abstumpfungseffekt hervorrufen- When used on roads, the agent should have a blunting effect cause
- - Staubentwicklungen während des Einsatzes sind unerwünscht- Dust development during use is undesirable
- - die Entsorgung des beladenen Mittels sollte möglichst einfach sein.- The disposal of the loaded agent should be as simple as possible.
Das hier zum Patent angemeldete Ölbindemittel wird allen diesen Anforderungen,
zum Teil in hervorragender Weise gerecht:
The oil binder, which has been registered for a patent here, meets all of these requirements, in some cases in an outstanding way:
- - die Aufnahmekapazität ist mit 7-10 kg Öl pro kg Produkt sehr gut- The absorption capacity is very good with 7-10 kg of oil per kg of product
- - die Selektivität für Öl in Gegenwart von Wasser sowie die Schwimmfähigkeit sind hervorragend- The selectivity for oil in the presence of water and the buoyancy are excellent
- - der Saugeffekt für Öle ist auch bei Bodenunebenheiten vorhanden- The suction effect for oils is also present when the floor is uneven
- - der Ölabbau des beladenen Produkts wird durch die immobilisierten Mikroorganismen beschleunigt und damit die Entsorgung vereinfacht.- The oil degradation of the loaded product is carried out by the immobilized Microorganisms are accelerated, making disposal easier.
1 kg Gelantine-Granulat (100 mesh) wird in einem Glasgefäß mit einer wässrigen Lösung von Chrom(III)-Sulfat (33%) bei Raumtemperatur und pH 3.5 vier Stunden vorsichtig gerührt. Nach Reaktionsende wird der Überstand abgegossen und das Granulat dreimal mit vollentsalztem Wasser gewaschen und getrocknet. 1 kg of gelatin granules (100 mesh) is in a glass vessel with an aqueous Solution of chromium (III) sulfate (33%) at room temperature and pH 3.5 for four hours carefully stirred. After the reaction has ended, the supernatant is poured off and that Granules washed three times with deionized water and dried.
1 kg Gelantine-Granulat (100 mesh) wird in einem Glasgefäß mit einer wässrigen Suspension von Tannin (100 g/l) bei 40°C und pH 5.0 vier Stunden vorsichtig gerührt. Nach Reaktionsende wird der Überstand abgegossen und das Granulat dreimal mit vollentsalztem Wasser gewaschen und getrocknet.1 kg of gelatin granules (100 mesh) is in a glass vessel with an aqueous Carefully suspend suspension of tannin (100 g / l) at 40 ° C and pH 5.0 for four hours touched. After the reaction has ended, the supernatant is poured off and the granules washed three times with deionized water and dried.
500 kg Altleder wird mit einem Schredder (Firma Alpine, Siebgröße 3 cm) vorzerkleinert und über ein Förderband transportiert, auf dem über einen Magnetabscheider Metallteile entfernt werden. Danach wird das Material in einer Schneidmühle (Fa. Rapid) auf eine Korngröße von < 5 mm zerkleinert. Über eine Sprühvorrichtung wird danach eine wässrige Suspension mit ölabbauenden Bakterien auf das Material aufgebracht.500 kg of waste leather is shredded (Alpine company, screen size 3 cm) pre-shredded and transported on a conveyor belt, on which one Magnetic separator metal parts can be removed. Then the material is in a Cutting mill (Rapid) crushed to a grain size of <5 mm. An aqueous suspension is then added to a spray device oil-degrading bacteria applied to the material.
Ein Wasserbecken wird mit 20 Liter Leitungswasser befüllt und 1 Liter Altöl zugegeben bis sich ein Ölteppich bildet. Danach werden 150 g Ölbindemittel (hergestellt entsprechend Beispiel 3) auf den Ölteppich aufgestreut. Der Vorgang wird mittels einer Videokamera verfolgt: anhand der Ölschlieren ist zu beobachten, dass das Öl selektiv vom Ölbindemittel aufgesaugt wird. Der Vorgang dauert 10 Minuten. Das beladene Ölbindemittel wird abgeschöpft. Es bleibt kein sichtbares Öl auf der Wasseroberfläche zurück.A water basin is filled with 20 liters of tap water and 1 liter of used oil added until an oil slick forms. Then 150 g of oil binder (made according to Example 3) sprinkled on the oil slick. The process is followed using a video camera: using the oil streaks it can be observed that the oil is selectively absorbed by the oil binder. The The process takes 10 minutes. The loaded oil binder is skimmed off. It stays no visible oil on the water surface.
Auf einem Gehweg mit Asphaltbelag wird 1 Liter Erdöl ausgeschüttet. Auf die Erdöllache wird 300 g Ölbindemittel (hergestellt aus Altschuhmaterial, entsprechen Beispiel 3) aufgestreut. Nach dreißig Minuten wird das beladene Material mit einem Besen aufgekehrt. Es sind keine Ölreste auf dem Boden zu sehen. Die Oberfläche ist nicht mehr glatt.1 liter of petroleum is poured out on a pavement with asphalt. 300 g of oil binder (made from used shoe material, correspond to example 3) scattered. After thirty minutes the loaded one Material swept up with a broom. There are no oil residues on the floor too see. The surface is no longer smooth.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19954643A DE19954643A1 (en) | 1999-11-13 | 1999-11-13 | Floating oil binder for removing oil and fat spills from water or solid surfaces comprises from tanned fibrous proteins or scrap leather, carrying immobilized microorganism to break down adsorbed oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19954643A DE19954643A1 (en) | 1999-11-13 | 1999-11-13 | Floating oil binder for removing oil and fat spills from water or solid surfaces comprises from tanned fibrous proteins or scrap leather, carrying immobilized microorganism to break down adsorbed oil |
Publications (1)
Publication Number | Publication Date |
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DE19954643A1 true DE19954643A1 (en) | 2001-06-13 |
Family
ID=7928921
Family Applications (1)
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DE19954643A Withdrawn DE19954643A1 (en) | 1999-11-13 | 1999-11-13 | Floating oil binder for removing oil and fat spills from water or solid surfaces comprises from tanned fibrous proteins or scrap leather, carrying immobilized microorganism to break down adsorbed oil |
Country Status (1)
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007003644A1 (en) | 2007-01-21 | 2008-07-24 | Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung Stiftung des öffentlichen Rechts | Bioremediation process for the accelerated biodegradation of petroleum hydrocarbons in the polar sea ice-covered regions and bacterial and enzyme mixtures as a means of carrying out the process |
WO2009043130A1 (en) * | 2007-10-03 | 2009-04-09 | Falnes Elingsen, Hans | Improved system and manufacturing process of bio- repair of substances in the liquid state which contain carbon molecules in its structure |
EP2085138A1 (en) | 2008-02-04 | 2009-08-05 | Kalle GmbH | Binding agent for absorbtion of liquids, especially for oil |
DE102008018112A1 (en) | 2008-04-09 | 2009-10-15 | Hotrega Gmbh | Biodegradable binder system for chemicals and oils |
DE102013008845A1 (en) * | 2013-05-24 | 2014-11-27 | Asa Spezialenzyme Gmbh | Biotechnical modification of particles from renewable raw materials to improve the aggregation and floating on aqueous surfaces |
WO2015028506A1 (en) * | 2013-08-27 | 2015-03-05 | Technische Universität Dresden | Porous oil binder and method for the production thereof |
WO2018145722A1 (en) | 2017-02-09 | 2018-08-16 | Zachert Wolfgang | Device for cleaning a fluid contaminated with oil |
DE102017001223A1 (en) | 2017-02-09 | 2018-09-20 | Wolfgang Zachert | Device for cleaning an oil contaminated with oil |
CN109467196A (en) * | 2018-12-27 | 2019-03-15 | 四川大学 | Application of the Rhodopseudomonas palustris in processing oil field waste and the method using Rhodopseudomonas palustris processing oil field waste |
CN109821509A (en) * | 2019-02-28 | 2019-05-31 | 长沙埃比林环保科技有限公司 | A kind of preparation method of collagen fiber adsorption material |
CN110965512A (en) * | 2019-10-24 | 2020-04-07 | 曾涵宇 | Machining place ground oil stain cleaning equipment capable of preventing pits and ditches from being cleared |
-
1999
- 1999-11-13 DE DE19954643A patent/DE19954643A1/en not_active Withdrawn
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007003644A1 (en) | 2007-01-21 | 2008-07-24 | Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung Stiftung des öffentlichen Rechts | Bioremediation process for the accelerated biodegradation of petroleum hydrocarbons in the polar sea ice-covered regions and bacterial and enzyme mixtures as a means of carrying out the process |
US8444962B2 (en) | 2007-01-21 | 2013-05-21 | Stiftung Alfred-Wegener-Insitut fuer Polar-und Meeresforschung | Bioremediation method for accelerated biological decomposition of petroleum hydrocarbons in sea ice-covered polar regions, and bacteria and enzyme mixtures as agents for carrying out said method |
US8968718B2 (en) | 2007-01-21 | 2015-03-03 | Alfred-Wegener-Institut Helmholtz-Zentrum Fuer Polar-Und Meeresforschung | Bioremediation method for accelerated biological decomposition of petroleum hydrocarbons in sea ice-covered polar regions, and bacteria and enzyme mixtures as agents for carrying out said method |
WO2009043130A1 (en) * | 2007-10-03 | 2009-04-09 | Falnes Elingsen, Hans | Improved system and manufacturing process of bio- repair of substances in the liquid state which contain carbon molecules in its structure |
EP2085138A1 (en) | 2008-02-04 | 2009-08-05 | Kalle GmbH | Binding agent for absorbtion of liquids, especially for oil |
DE102008007475A1 (en) | 2008-02-04 | 2009-08-06 | Kalle Gmbh | Binders for holding liquids, in particular oil |
DE102008018112A1 (en) | 2008-04-09 | 2009-10-15 | Hotrega Gmbh | Biodegradable binder system for chemicals and oils |
DE102013008845A1 (en) * | 2013-05-24 | 2014-11-27 | Asa Spezialenzyme Gmbh | Biotechnical modification of particles from renewable raw materials to improve the aggregation and floating on aqueous surfaces |
WO2015028506A1 (en) * | 2013-08-27 | 2015-03-05 | Technische Universität Dresden | Porous oil binder and method for the production thereof |
US20160200602A1 (en) * | 2013-08-27 | 2016-07-14 | Technische Universitat Dresden | Porous oil binder and method for the production thereof |
US10519354B2 (en) * | 2013-08-27 | 2019-12-31 | Technische Universitaet Dresden | Porous oil binder and method for the production thereof |
WO2018145722A1 (en) | 2017-02-09 | 2018-08-16 | Zachert Wolfgang | Device for cleaning a fluid contaminated with oil |
DE102017001223A1 (en) | 2017-02-09 | 2018-09-20 | Wolfgang Zachert | Device for cleaning an oil contaminated with oil |
DE102017001223B4 (en) | 2017-02-09 | 2019-05-29 | Wolfgang Zachert | Device for cleaning an oil contaminated with oil |
CN109467196A (en) * | 2018-12-27 | 2019-03-15 | 四川大学 | Application of the Rhodopseudomonas palustris in processing oil field waste and the method using Rhodopseudomonas palustris processing oil field waste |
CN109821509A (en) * | 2019-02-28 | 2019-05-31 | 长沙埃比林环保科技有限公司 | A kind of preparation method of collagen fiber adsorption material |
CN110965512A (en) * | 2019-10-24 | 2020-04-07 | 曾涵宇 | Machining place ground oil stain cleaning equipment capable of preventing pits and ditches from being cleared |
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