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EP3044169A1 - Procédé de décontamination d'un cours d'eau contaminé et contenant plastique y afférant - Google Patents

Procédé de décontamination d'un cours d'eau contaminé et contenant plastique y afférant

Info

Publication number
EP3044169A1
EP3044169A1 EP13796007.6A EP13796007A EP3044169A1 EP 3044169 A1 EP3044169 A1 EP 3044169A1 EP 13796007 A EP13796007 A EP 13796007A EP 3044169 A1 EP3044169 A1 EP 3044169A1
Authority
EP
European Patent Office
Prior art keywords
water
plastic container
contaminated
contaminated water
decontaminating
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Withdrawn
Application number
EP13796007.6A
Other languages
German (de)
English (en)
Inventor
Reinhard Heuser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP3044169A1 publication Critical patent/EP3044169A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/344—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for digestion of mineral oil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B63B35/285—Flexible barges, e.g. bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • C02F1/682—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of chemical compounds for dispersing an oily layer on water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/041—Devices for distributing materials, e.g. absorbed or magnetic particles over a surface of open water to remove the oil, with or without means for picking up the treated oil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/045—Separating means for recovering oil floating on a surface of open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/046—Collection of oil using vessels, i.e. boats, barges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/008—Mobile apparatus and plants, e.g. mounted on a vehicle
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/10—Esters of organic acids, i.e. acylates

Definitions

  • the present invention relates to a method for decontaminating a contaminated water body according to the preamble of claim 1.
  • the subject matter of the invention is a plastic container for use in a method for decontaminating a contaminated water body.
  • the invention has for its object to provide a method for the decontamination of a contaminated body of water, which can be decontaminated quickly and effectively with a manageable effort and large-scale contamination in waters.
  • This object is achieved in that the contaminated water is mixed after pumping with a particular liquid decontaminating agent and then in a body of water, preferably floating plastic container is filled, the plastic container then remains in the water.
  • the contaminated water is pumped out of the surface of the water.
  • the method is preferably used in case of contamination when the contamination floats on the water, as it is, for example, in oil-contaminated waters.
  • the method can be used in particular for the large-area decontamination of contaminated water surfaces, e.g. to avoid so-called oil disasters.
  • a large-scale intake is preferably used when pumping.
  • the contaminated water is pumped by a device into a plastic container designed as a flexible film tank, which floats in the water.
  • the film can be very thin due to the complete pressure equalization between the contaminated water in the film tank and the water outside the film tank. be formed film-like, since it has to withstand substantially no pressure. Because of the low weight of the film tank floats or floats the filled film tank in the water. The volume of the film tank is almost arbitrary and is limited only by the manufacturing process and the handling of the film tank.
  • plastic containers are used, which are closable.
  • the film tank is first filled and then closed by a closing device.
  • the liquid decontaminant acts on the contaminated water and decontamination takes place.
  • closing prevents the contaminated water from mixing with clean water after filling.
  • this has no internal volume before filling. So he is folded in particular, laid or rolled and unfolds when filling. This avoids that by filling in the plastic container air complete filling of the plastic container is not possible.
  • the mixing with a decontaminating agent takes place on a vessel floating on the contaminated water in a device provided for this purpose or on the bank of the contaminated water body in a device provided for this purpose.
  • the device in each case sucks the contaminated water from the water surface via a pump, mixes it with the liquid decontaminating agent and then pumps the mixture into the plastic container floating in the water.
  • the decontaminating agent comprises a surfactant, wherein in particular microorganisms (microbes) are added to the surfactant.
  • a decontaminating agent can be purposefully used to decontaminate different contaminants under different environmental conditions, e.g. Heat or cold, fresh water or sea water, etc. are produced. Appropriate choice of microorganisms can effectively support decontamination.
  • the decontaminating agent is already in the tank before filling the tank with contaminated water.
  • Surfactants have the property of producing a very low surface tension.
  • the surfactant acts e.g. in a mixture of oil or fatty substances with water as an emulsifier and thus leads to a very finely divided oil / water emulsion, which provides a large attack surface preparatory to decontamination.
  • Surfactants are also biodegradable.
  • the liquid decontaminant of the process of the invention comprises, for example, a mixture of various surfactants, e.g. made from hemp oil and yeast. This results in a particularly good and rapid biodegradability of these surfactant mixtures, since the microorganisms that provide for the degradation, this natural surfactant mixture with the oil or fatty substances degrade faster than a chemically produced surfactant.
  • microorganisms can be selected for specific use.
  • the Institute of Microbiology of the University of Greifswald maintains a collection of microorganisms, in particular with different oil-degrading microorganisms, with correspondingly powerful microorganisms can be selected for different uses.
  • the complete decontamination can take place within about 30 days and takes place automatically by the decomposition process of the emulsion in the plastic container.
  • the duration of the decomposition process is temperature dependent. Once all the oil has been removed, the microorganisms die.
  • a material of the plastic container is biodegradable in water.
  • the material of the plastic container is chosen so that it decomposes only after the expiration of the degradation time of the contaminated substance (oil-contaminated water about 30 days), so after the decontamination process is completed in the plastic container.
  • the plastic container is made of biodegradable materials and may include, for example, cellulose esters, polyhydroxyalkanoates (PHA), polycaprolactones (PCL), polybutylene adipate terephthalate (PBAT) and / or polybutylene succinate (PSB). Due to the decomposition of the plastic container, the decontaminated water is automatically returned to the natural cycle of nature without human intervention.
  • the inventive method is thus particularly effective and particularly environmentally friendly.
  • the method according to the invention can also be used.
  • only the plastic container must be opened manually after the degradation of the contamination by being slashed, for example.
  • Figure 1 is a representation of the sequence of the method according to the invention on a floating ship.
  • Figure 2 is a representation of the sequence of the method according to the invention on a bank of a contaminated water body.
  • FIG. 1 shows a ship 12 floating on a sea 10, the ship 12 carrying a device 14 for decontaminating scalded water 16.
  • the scared water 16 floats on the water, as it is the case, for example, in oil-contaminated sea water after an oil spill.
  • the ship 12 can drive on any polluted waters.
  • a conduit system 18 is connected, on the one hand has a floating on the sea 10 intake 20 for sucking the contaminated water 16 and on the other hand, a delivery line 22, the mixed in the device 14 with a liquid decontaminating agent 23 contaminated water 16 in a in the sea 10 floating plastic container 24 pumps.
  • the flow direction of the contaminated water 16 in the conduit system 18 is designated by the reference numeral 26.
  • the intake manifold 20 is preferably formed over a large area.
  • the plastic container 24 is preferably formed as a flexible film tank, similar to a plastic bag.
  • the film can be made very thin because of the complete pressure equalization between the contaminated water 16 in the film tank 24 and the water outside of the film tank 24 because it has to withstand substantially no pressure. Because of the low weight of the film tank 24 floats or floats the filled film tank 24 in the water.
  • the film tank 24 preferably has no internal volume prior to filling, and in particular is folded, laid or rolled. It unfolds when filling. This avoids that by filling in the film tank 24 air complete filling of the film tank 24 is not possible or difficult. After filling, the film tank 24 remains in the sea 10.
  • the vessel 12 travels, for example, after a large-scale decontamination, the contaminated water area 16 and continuously sucks the contaminated water 16 by means of the intake manifold 20 via the conduit system 18 in the device 14, wherein the liquid decontaminating agent 23 mixed into the contaminated water 16 becomes. Subsequently, the mixture is pumped through a closable opening in the floating flexible film tank 24. If the flexible film tank 24 is completely filled, it is closed by a closing device provided at the opening.
  • the volume of the film tank 24 is almost arbitrary and is limited only by the manufacturing process and the handling of the film tank 24.
  • the film tanks 24 can be made available while driving on the sea 10. Regardless of how many flexible film tanks 24 are required, the film tanks 24 remain in the sea 10.
  • biodegradable plastic is used.
  • the plastic may consist of cellulose esters, polyhydroxyalkanoates (PHA), polycaprolactones (PCL), polybutylene adipate terephthalate (PBAT) and / or polybutylene succinate (PSB).
  • PHA polyhydroxyalkanoates
  • PCL polycaprolactones
  • PBAT polybutylene adipate terephthalate
  • PSB polybutylene succinate
  • the liquid decontamination agent 23 essentially comprises a surfactant or a surfactant mixture of different surfactants, which has been mixed with microorganisms (microbes). Such a decontamination agent 23 may be targeted for decontaminating various contaminants under different environmental conditions, such as e.g. Heat or cold, fresh water or sea water, etc. are produced. Appropriate choice of microorganisms can effectively support decontamination.
  • FIG. 2 shows an apparatus 14 for decontaminating scalded water 16 which is constructed on the bank of a river or any inland watercourse 28.
  • the device 14 is preferably mobile, i. arranged on a vehicle.
  • the contaminated water 16 floats on the surface, as it is the case, for example, oil-contaminated water after an oil spill.
  • the contaminated water 16 floating, for example, on the water 28 is sucked up with the intake 20 and further treated according to the method described above.
  • the contaminated water 16 mixed with the liquid decontamination agent 23 is pumped into the flexible film tank 24.
  • the film tank 24 then remains in the inland water 28, within a certain period of time the contamination in the film tank 24 is reduced. Thereafter, the film tank 24 can decompose or it is opened manually. As a result, the decontaminated water is automatically returned to the natural cycle of nature without human intervention.
  • a contamination is floating on a river
  • a special intake 20 may be provided which is so far extended in length, that it - as far as possible - over the entire width of the river, the fumigated water 16 can absorb (not shown).
  • the device 14 must be set up downstream to initiate the contamination. Otherwise, the method described above is performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Public Health (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Transportation (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Removal Of Floating Material (AREA)

Abstract

L'invention concerne un procédé de décontamination d'un cours d'eau contaminé, l'eau contaminée étant pompée et retraitée. Une fois pompée, l'eau contaminée est mélangée à un agent décontaminant liquide puis cédée à un contenant plastique se trouvant dans le cours d'eau, de préférence flottant, le contenant plastique demeurant ensuite dans le cours d'eau. L'invention concerne également un contenant plastique.
EP13796007.6A 2013-09-09 2013-09-09 Procédé de décontamination d'un cours d'eau contaminé et contenant plastique y afférant Withdrawn EP3044169A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/068600 WO2015032446A1 (fr) 2013-09-09 2013-09-09 Procédé de décontamination d'un cours d'eau contaminé et contenant plastique y afférant

Publications (1)

Publication Number Publication Date
EP3044169A1 true EP3044169A1 (fr) 2016-07-20

Family

ID=49674258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13796007.6A Withdrawn EP3044169A1 (fr) 2013-09-09 2013-09-09 Procédé de décontamination d'un cours d'eau contaminé et contenant plastique y afférant

Country Status (3)

Country Link
US (1) US20160326035A1 (fr)
EP (1) EP3044169A1 (fr)
WO (1) WO2015032446A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829417B (zh) * 2017-12-08 2023-04-07 宁波工程学院 一种利用表面张力清理水面污染物的装置及其应用
CN109650553A (zh) * 2018-12-20 2019-04-19 周刚 利用兼性异养微生物治理河流污染的方法及其应用
CN115093679B (zh) * 2022-06-20 2023-04-25 郑州大学 Pbat多孔海绵及其制备方法和应用

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914804A1 (de) * 1989-05-05 1989-11-02 Tomas Klimecky Aufblasbares oelabsaugboot
DE4114184A1 (de) * 1991-04-30 1993-06-17 Luc Dr Med Barrut Verfahren und vorrichtung zum entsorgen von auf und/oder unter wasser befindlichen oelen und/oder emulsionen
US5964369A (en) * 1995-10-18 1999-10-12 Gnesys, Inc. Mobile collapsible floating oil container
US6436289B1 (en) * 1999-10-15 2002-08-20 Duncan Johnstone Vertical membrane storage system and method of storing liquids using the same
DE102007050769A1 (de) * 2007-10-22 2009-04-23 Biotec Biologische Naturverpackungen Gmbh & Co. Kg Polymeres Material und Verfahren zu dessen Herstellung
DE102009024916A1 (de) * 2009-06-15 2010-12-16 Georg Fritzmeier Gmbh & Co. Kg Verfahren und Produkt zum Abbau von organischen Verbindungen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015032446A1 *

Also Published As

Publication number Publication date
US20160326035A1 (en) 2016-11-10
WO2015032446A1 (fr) 2015-03-12

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