DE3619494A1 - Process for soil cleaning - Google Patents

Process for soil cleaning

Info

Publication number
DE3619494A1
DE3619494A1 DE19863619494 DE3619494A DE3619494A1 DE 3619494 A1 DE3619494 A1 DE 3619494A1 DE 19863619494 DE19863619494 DE 19863619494 DE 3619494 A DE3619494 A DE 3619494A DE 3619494 A1 DE3619494 A1 DE 3619494A1
Authority
DE
Germany
Prior art keywords
soils
soil
ground
injection holes
combustible
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.)
Granted
Application number
DE19863619494
Other languages
German (de)
Other versions
DE3619494C2 (en
Inventor
Heinz Dipl Ing Hoelter
Heinrich Dipl Ing Igelbuescher
Heinrich Ing Grad Gresch
Heribert Dipl Ing Dewert
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
Priority to DE19863619494 priority Critical patent/DE3619494A1/en
Publication of DE3619494A1 publication Critical patent/DE3619494A1/en
Application granted granted Critical
Publication of DE3619494C2 publication Critical patent/DE3619494C2/de
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/06Reclamation of contaminated soil thermally
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00Methods for working soil
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/14Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of contaminated soil, e.g. by oil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00In situ

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

It is known to excavate soils contaminated by light to medium hydrocarbons, such as oils, to treat them thermally or clean them by washing and provide them with soil bacteria in order to reuse the soils as cultivation soils. These known processes have the disadvantage that the soils must be excavated which represents a relatively high expense. In order to remove the contaminates from soils, according to the invention it is proposed that injection holes are introduced into the ground and from the deepest point of the injection hole a combustible mixture, preferably comprising a neutral gas and air excess, is ignited so that a high ambient temperature is inevitably generated such that the combustible constituents of the surrounding contaminated soil ignite, co-combust and thus, successively towards the surface of the ground, a thermal decomposition of the pollutants in the soils is unavoidably completed and at the surface the exhaust gases are collected by a hood-like shield and, purified by wet or dry methods, are released to the atmosphere in an environmentally tolerable manner.

Description

Es ist bekannt, Altlasten-Sanierungen durchzuführen, d. h. kontaminierte Böden auszugraben, thermisch zu behandeln oder waschtechnisch zu reinigen und mit Bodenbakterien zu versehen, um den Boden dann wieder als Wachstumsboden zu verwenden.It is known to remediate contaminated sites, d. H. Dig up contaminated soils thermally treat or wash and clean with To provide soil bacteria to the soil again to use as growth soil.

Es gibt verschiedene Methoden der thermischen Boden­ reinigung, wobei grundsätzlich bei den bekannten Ver­ fahren der Boden ausgebaggert und einer thermischen Behandlung in einer Vorrichtung dafür zugeführt wird.There are different methods of thermal soil cleaning, basically with the known Ver drive the ground dredged and a thermal Treatment is supplied in a device for this.

Weiterhin ist bekannt, Böden durch Sickerbrunnen und Schöpfbrunnen zu reinigen.It is also known soils through seepage wells To clean the well.

Die nachstehende Erfindung hat zur Aufgabe, bestimmte verunreinigte Böden an Ort und Stelle thermisch zu be­ handeln in der Form, z. B. fetthaltige Böden wie ölge­ tränkte Böden bzw. Böden, die mit leichten bis mittleren Kohlenwasserstoffen durch Straßenunglücksfälle z. B. ver­ seucht sind, preiswert zu reinigen.The following invention aims to determine certain to contaminate soils on the spot act in the form, e.g. B. fatty soils such as oil soaked floors or floors with light to medium Hydrocarbons from road accidents such. B. ver are addicted to clean inexpensively.

Erfindungsgemäß wird daher vorgeschlagen, in den Boden Injektionslanzen einzudrücken oder bohr­ technisch näher zu bringen, um aus dem Injektions­ lochtiefsten brennbare neutrale Stoffe ausfließen zu lassen, - die Gasbrennlanzen -, die z. B. gleich­ zeitig mit einem Luftüberschuß aus dem Injektions­ lochtiefsten eine regelrechte Hochtemperatur im Bereich des Austritts erzeugen und das Erdreich derart erhitzen, daß eine weitere Zündung und Anbrennen der Stoffe, die brennfähig sind, wie Altöle und dergleichen, erfolgt, um somit an Ort und Stelle, ohne den Boden ausbaggern zu müssen, ein Abbrennen der Bodenbelastung zu erzielen. Damit die Abgase nicht die Umwelt belasten, wird eine deckelförmige Bewehrung vorgesehen, und diese wird mit bekannten trockenen oder nassen Gas­ reinigungsverfahren gekuppelt, so daß die Rück­ standsprodukte aus dem Boden verbrannt werden und die Abluft aus dieser Verbrennung der gereinigten Atmosphäre übergeben wird.According to the invention it is therefore proposed in the Pushing in or lancing soil injection lances to bring technically closer to out of the injection Outflows of flammable neutral substances to let - the gas firing lances - the z. B. the same early with an excess of air from the injection deep down a veritable high temperature in the Generate area of exit and soil heat so that another ignition and Burning the substances that are flammable, such as Waste oils and the like, is done in order to be in place and place without having to dredge the ground to burn off the floor load. So that the exhaust gases do not pollute the environment a lid-shaped reinforcement is provided, and this comes with known dry or wet gas cleaning process coupled so that the return stand products are burned from the ground and the exhaust air from this combustion of the cleaned Atmosphere is passed.

Selbstverständlich ist die Erfindung nicht auf die im einzelnen beschriebene Ausbildungsform beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, kontaminierte Böden, die mit leichten bis mittel­ schweren Kohlenwasserstoffen belastet sind, injektionstechnisch aus dem notwendigen tiefsten Injektionsloch mit Luftüberschuß und brennbaren Stoffen wie Gas zu versehen, so daß eine Hoch­ temperaturzone zwangsläufig im Erdreich geschaffen wird, die zur Zündung und sukzessiven Verbrennung bis zur Oberfläche des kontaminierten Bodens führt.Of course, the invention is not limited to that limited form of training described in detail, there are numerous changes possible  without deviating from the basic idea, contaminated soils with light to medium heavy hydrocarbons, injection technology from the deepest necessary Injection hole with excess air and flammable To provide substances like gas, so that a high temperature zone inevitably created in the ground which is used for ignition and gradual combustion leads to the surface of the contaminated soil.

Claims (1)

Verfahren zur Beseitigung von leichten bis mittleren Kohlenwasserstoffen, wie Ölen und dergleichen, die als Erdreichverunreinigung vorliegen, dadurch gekennzeichnet, daß Injektionslöcher in das Erdreich eingebracht werden und aus dem Injektionslochtiefsten ein brennbares Gemisch, vorzugsweise aus neutralem Gas und Luftüberschuß bestehend, gezündet wird, so daß eine derart hohe Umgebungstemperatur zwangsläufig erzeugt wird, daß die brennbaren Bestandteile des umgebenden kontaminierten Bodens zünden, mitverbrennen und somit sukzessiv zur Erd­ oberfläche hin ein thermisches Zersetzen der Be­ lastungen in den Böden zwangsläufig vollzogen wird und an der Oberfläche durch eine haubenförmige Be­ wehrung die Abgase erfaßt und trocken- oder naß­ technisch gereinigt umweltfreundlich der Atmosphäre übergeben werden.Process for the removal of light to medium hydrocarbons, such as oils and the like, which are present as soil contamination, characterized in that injection holes are made in the soil and a combustible mixture, preferably consisting of neutral gas and excess air, is ignited from the deepest of the injection holes, so that such a high ambient temperature is inevitably generated that the combustible constituents of the surrounding contaminated soil ignite, co-incinerate and thus successively to the earth's surface thermal decomposition of the loads in the soil is inevitably carried out and the exhaust gases are detected on the surface by a hood-shaped reinforcement and passed dry or wet technically cleaned and environmentally friendly to the atmosphere.
DE19863619494 1986-06-10 1986-06-10 Process for soil cleaning Granted DE3619494A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863619494 DE3619494A1 (en) 1986-06-10 1986-06-10 Process for soil cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863619494 DE3619494A1 (en) 1986-06-10 1986-06-10 Process for soil cleaning

Publications (2)

Publication Number Publication Date
DE3619494A1 true DE3619494A1 (en) 1987-12-17
DE3619494C2 DE3619494C2 (en) 1988-11-17

Family

ID=6302697

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863619494 Granted DE3619494A1 (en) 1986-06-10 1986-06-10 Process for soil cleaning

Country Status (1)

Country Link
DE (1) DE3619494A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916617A1 (en) * 1989-05-22 1990-11-29 Ruhrkohle Ag FLOOR CLEANING
EP0489910A1 (en) * 1990-06-27 1992-06-17 HASEBE, Nobuyasu Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes
EP0597154A1 (en) * 1990-02-05 1994-05-18 Hrubetz Environmental Services, Inc. Method and apparatus for heating subsurface soil for decontamination
US5482402A (en) * 1990-02-05 1996-01-09 Hrubetz Environmental Services, Inc. Method and apparatus for heating subsurface soil for decontamination
WO2007066125A2 (en) * 2005-12-10 2007-06-14 The University Court Of The University Of Edinburgh Method and apparatus for remediating contamined land
WO2014074295A1 (en) 2012-11-09 2014-05-15 Chevron U.S.A. Inc. Thermal treatment of a volume of porous contaminated material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716275A1 (en) * 1987-05-15 1988-11-24 Westfaelische Berggewerkschaft Process and apparatus for the thermal decontamination of contaminated soils
CN103404265B (en) * 2013-07-01 2015-04-08 句容市浮山果园 Tea garden soil improvement method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951963C (en) * 1953-12-04 1956-11-08 Walter Widmer Arrangement for steaming cultivated soil
FR2111635A3 (en) * 1971-12-09 1972-06-09 Lefeuvre Jean Claude
DE3427532C1 (en) * 1984-07-26 1985-08-14 Ruhrkohle Ag, 4300 Essen Process and plant for the reclamation of industrially used, contaminated land

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951963C (en) * 1953-12-04 1956-11-08 Walter Widmer Arrangement for steaming cultivated soil
FR2111635A3 (en) * 1971-12-09 1972-06-09 Lefeuvre Jean Claude
DE3427532C1 (en) * 1984-07-26 1985-08-14 Ruhrkohle Ag, 4300 Essen Process and plant for the reclamation of industrially used, contaminated land

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916617A1 (en) * 1989-05-22 1990-11-29 Ruhrkohle Ag FLOOR CLEANING
EP0597154A1 (en) * 1990-02-05 1994-05-18 Hrubetz Environmental Services, Inc. Method and apparatus for heating subsurface soil for decontamination
US5482402A (en) * 1990-02-05 1996-01-09 Hrubetz Environmental Services, Inc. Method and apparatus for heating subsurface soil for decontamination
EP0489910A1 (en) * 1990-06-27 1992-06-17 HASEBE, Nobuyasu Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes
EP0489910A4 (en) * 1990-06-27 1993-07-21 Nobuyasu Hasebe Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes
WO2007066125A2 (en) * 2005-12-10 2007-06-14 The University Court Of The University Of Edinburgh Method and apparatus for remediating contamined land
WO2007066125A3 (en) * 2005-12-10 2007-11-15 Univ Edinburgh Method and apparatus for remediating contamined land
US8132987B2 (en) 2005-12-10 2012-03-13 University Court Of The University Of Edinburgh Method for remediating contaminated land
CN101365550B (en) * 2005-12-10 2012-05-09 爱丁堡大学董事会 Method and apparatus for remedying contaminated land
WO2014074295A1 (en) 2012-11-09 2014-05-15 Chevron U.S.A. Inc. Thermal treatment of a volume of porous contaminated material

Also Published As

Publication number Publication date
DE3619494C2 (en) 1988-11-17

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Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee