DE3912662A1 - Contaminated soil cleaning - by mobile washing plant in two stacks - Google Patents

Contaminated soil cleaning - by mobile washing plant in two stacks

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Publication number
DE3912662A1
DE3912662A1 DE19893912662 DE3912662A DE3912662A1 DE 3912662 A1 DE3912662 A1 DE 3912662A1 DE 19893912662 DE19893912662 DE 19893912662 DE 3912662 A DE3912662 A DE 3912662A DE 3912662 A1 DE3912662 A1 DE 3912662A1
Authority
DE
Germany
Prior art keywords
soil
solvent
contaminated soil
cleaning
chemically
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Withdrawn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
DE19893912662
Other languages
German (de)
Inventor
Kalman Peter Gyoery
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 DE19893912662 priority Critical patent/DE3912662A1/en
Publication of DE3912662A1 publication Critical patent/DE3912662A1/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28Treating solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/02Extraction using liquids, e.g. washing, leaching, flotation

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

Abstract

Soil which has been contaminated chemically or radioactively is cleaned in situ by mobile washing plant, using suitable solvents and/or binding agents for the elutriation. The process is applied in at lesast two stages, resting on balloon tyres has a cent bucket wheel to excavate the soil which is tipped on a plastic screen plate which oscillates and is made of explosion-proof plastic material. Several graded screens follow in an enclosed chamber and nozzles spray a solvent on the soil. In the second stage, the chemically cleaned soil is passed to a second separate screening system where steam or hot water remove any remnants of the solvent. Solvent and steam are extracted in containers for distillation and re-use. ADVANTAGE - Soil is returned at once to site. Much of the solvent used can be recovered.

Description

Die Erfindung betrifft ein Verfahren zur Entgiftung von Erdreich, das mit Erdöl oder anderen Chemikalien verseucht ist, indem der Boden durch Auswaschen mit dem entsprechenden Lösungsmittel in eine für diesen Zweck konstruierten stationären- oder mobilen Reinigungsmaschine ge­ füllt wird.The invention relates to a method for detoxifying soil, the is contaminated with petroleum or other chemicals by the soil Wash out with the appropriate solvent in one for this Purpose constructed stationary or mobile cleaning machine ge is filled.

Zur Zeit wird das durch Erdöl oder durch andere Chemikalien ver­ seuchte Erdreich entweder abgebaggert, durch Abbrennen entgiftet oder aber woanders (oft illegal) abgelagert. Diese Verfahren sind entweder zu teuer oder/und nicht umweltfreundlich (giftige Abgase) oder aber das Problem wird einfach nur räumlich verlagert. Eine tatsächliche Lö­ sung existiert z. Z. für eine Erdreichentsorgung somit nicht.This is currently being done by petroleum or other chemicals contaminated soil either dredged, detoxified by burning or but deposited elsewhere (often illegally). These procedures are either too expensive and / or not environmentally friendly (toxic fumes) or else the problem is simply relocated. An actual Lö solution exists e.g. So not for soil disposal.

In Anbetracht die Häufigkeit von Havarien bei rohöltransportierenden Schiffen, wobei das auslaufende Öl oft sehr lange Strandabschnitte verseucht und die zahlreich vorhandenen, mit verschiedenen giftigen Chemikalien verseuchten Areale von ehemaligen chemischen Fabriken, was zu einer permanenten Grundwasservergiftung führt, besteht ein sehr großer Handlungsbedarf und die Notwendigkeit für eine praktikable und umweltfreundliche Lösung dieser Problematik.Considering the frequency of accidents with crude oil transporters Ships, with the oil spilling often very long stretches of beach contaminated and the numerous, with various toxic Chemical contaminated areas of former chemical factories, what leads to permanent groundwater poisoning exists a very great need for action and the need for a workable and environmentally friendly solution to this problem.

Der Erfindung liegt die Aufgabe zugrunde, die oben beschriebenen Pro­ bleme im finanziell vertretbaren Rahmen zu lösen, indem verseuchtes Erd­ reich nicht woanders gelagert, sondern maschinell gereinigt wird.The invention has for its object the pro described above Solve bleme in a financially acceptable manner by contaminated soil not stored elsewhere, but cleaned by machine.

Entsprechend der Erfindung werden je nach Bedarf stationäre und mo­ bile Erdreichwaschanlagen gebaut. Diese Anlagen arbeiten ähnlich wie eine überdimensionale Waschmaschine, wobei als Waschmittel jeweils ein für die zu beseitigende Chemikalien passendes, nach Möglichkeit ungif­ tiges Lösungs- und eventuell Bindemittel verwendet wird. Die Anlagen werden so konstruiert, daß das Lösungs- und/oder Bindemittel sich in einem geschlossenen Kreislauf befindet und nach dessen Sättigung ab­ gesaugt und durch frisches Mittel ersetzt wird.According to the invention, stationary and mo bile soil washers built. These systems work similarly an oversized washing machine, each as a detergent suitable for the chemicals to be removed, if possible ungif Solvent and possibly binder is used. The facilities are constructed so that the solvent and / or binder are in a closed circuit and after its saturation sucked and replaced by fresh agent.

Die Anlage selber wird in groben Zügen wie folgt konstruiert:The system itself is roughly constructed as follows:

Bei mobilen Anlagen besteht das Fahrwerk aus höhenregulierbaren gro­ ßen Ballonreifen oder Raupen. Hierbei kann die Höhenregulierung seitlich, vorne oder hinten voneinander unabhängig betätigt werden. Unter der Anlage befindet sich ein Förderrad, das durch das Eigengewicht der Anlage den zum Ausbaggern des Erdreiches erforderlichen Gewichts­ druck erhält. Das so ausgebaggerte Erdreich wird auf einer, wegen der eventuellen Explosionsgefahr aus Kunststoffmaterial hergestellten, groben und sich in Rüttelbewegung befindlichen Siebplatte abgelagert. Diese Siebplatte ist der obere Teil eines sich untereinander platzierten, fein­ heitsmäßig abgestuften Siebsystems. Das Siebsystem befindet sich in ei­ ner hermetisch abschließbaren Kammer, die an allen Seiten mit Hoch­ druckdüsen versehen ist. Wenn das Siebsystem mit dem ausggebaggerten Erdreich gefüllt ist, wird die Kammer automatisch geschlossen und das für die Reinigung des Erdreiches notwendige Lösungsmittel wird auf das auf den Sieben befindliche Erdreich unter hohen Druck gesprüht und das Erdreich somit gereinigt. Der zu realisierenden Reinigungsgrad kann mittels eines eingebaute Prüfmechanismusses oder mittels der Ana­ lyse von manuell entnommenen Proben ermittelt werden.In mobile systems, the chassis consists of height-adjustable large eat balloon tires or caterpillars. The height adjustment can be done laterally, can be operated independently at the front or rear. Under the There is a conveyor wheel, which is due to the weight of the system Plant the weight required to excavate the soil receives pressure. The dredged soil is on one because of the possible explosion risk made of plastic material, rough and deposited sieve plate in the shaking motion. These Sieve plate is the upper part of a fine placed one below the other screen system graded in terms of safety. The screening system is in egg ner hermetically lockable chamber, with high on all sides pressure nozzles is provided. If the screening system with the dredged Soil is filled, the chamber is closed automatically and that Solvent necessary for cleaning the soil is opened the soil on the seven sprayed under high pressure and cleaned the soil. The degree of cleaning to be achieved can be done by means of a built-in test mechanism or by means of the Ana lysis of manually taken samples.

Als zweite Stufe wird nach dem Abschluß der chemischen Reinigung die Kammer automatisch geöffnet und das sich dort befindliche und chemisch gereinigte Erdreich auf ein zweites Siebsystem umgelagert. Dieses befindet sich ebenfalls in einer verschließbaren Kammer. Der Transport des Erdreiches dorthin kann z. B. durch Abkippen erfolgen. The second stage is after chemical cleaning is complete the chamber opens automatically and the there and chemically cleaned soil transferred to a second screening system. This is also located in a lockable chamber. The Transport of the earth there can be done e.g. B. done by tipping.  

In der zweiten Kammer soll das Erdreich mittels Dampf oder durch heißes Wasser von den Resten des verwendeten Lösungsmittels gerei­ nigt werden. Nach diesem Vorgang entleert sich die zweite Kammer je nach Lage und Bedarf direkt auf den Boden oder auf ein Transport­ band. Das verwendete Lösungsmittel und auch der verwendete Dampf oder das Heißwasser wird nach erfolgter Sättigung in entsprechende Behälter abgesaugt und anschließend durch Destillation, chemische Bin­ dung oder auf eine andere Art gereinigt. Das so gereinigte Erdreich kann dann an seinen ursprünglichen Platz wieder abgelagert werden.In the second chamber, the earth should be steam or through hot water from the remains of the solvent used be inclined. After this process, the second chamber empties depending on location and need directly on the floor or on a transport tape. The solvent used and also the steam used or the hot water is turned into appropriate after saturation Aspirated container and then by distillation, chemical bin or cleaned in another way. Soil cleaned in this way can then be put back in its original place.

Claims (3)

1. Verfahren zur Reinigung von chemisch oder radioaktiv verseuchten Erdreich, dadurch gekennzeichnet, daß das Erdreich mittels vornehmlich mobilen Waschanlagen durch Verwendung von entsprechenden Lösungs- und/oder Bindemitteln durch Auswaschung gereinigt wird.1. A method for cleaning chemically or radioactively contaminated soil, characterized in that the soil is cleaned by means of primarily mobile washing systems by using appropriate solvents and / or binders by washing. 2. Verfahren zur Reinigung von chemisch oder radioaktiv verseuchten Erdreich nach Anspruch 1, dadurch gekennzeichnet, daß die Reinigung des verseuchten Erdreiches mindestens in zwei Stufen, nämlich als erstes mit dem entsprechenden chemischen Lösungs- und/oder Binde­ mittel, zweitens mit Wasser oder Dampf, jeweils in insich geschlossenen Kreisläufen, vorgenommen wird.2. Process for cleaning chemically or radioactively contaminated Soil according to claim 1, characterized in that the cleaning of the contaminated soil at least in two stages, namely as first with the appropriate chemical solution and / or bandage medium, secondly with water or steam, each in self-contained Cycles. 3. Verfahren zur Reinigung von chemisch oder radioaktiv verseuchten Erdreich nach Anspruch 1-2, dadurch gekennzeichnet, daß zur Reinigung vornehmlich mobile Anlagen verwendet werden, die mit mindestens einem nach Feinheit abgestuftes Siebsystem und mit mindestens einer hermetisch abschließbaren Kammer, versehen mit Hochdruckdüsen, aus­ gestattet sind.3. Process for cleaning chemically or radioactively contaminated Soil according to claims 1-2, characterized in that for cleaning primarily mobile systems are used, which with at least a screen system graded according to fineness and with at least one hermetically lockable chamber, equipped with high pressure nozzles are allowed.
DE19893912662 1989-04-18 1989-04-18 Contaminated soil cleaning - by mobile washing plant in two stacks Withdrawn DE3912662A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893912662 DE3912662A1 (en) 1989-04-18 1989-04-18 Contaminated soil cleaning - by mobile washing plant in two stacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893912662 DE3912662A1 (en) 1989-04-18 1989-04-18 Contaminated soil cleaning - by mobile washing plant in two stacks

Publications (1)

Publication Number Publication Date
DE3912662A1 true DE3912662A1 (en) 1990-10-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029022A1 (en) * 1990-09-13 1992-03-26 Krauss Maffei Ag Tracked vehicle for clearing oil on water and sepg. mixt. - having suction appts. with adjustable height on front of vehicle, can be used in shallow water, and has beach and cross-country capability
EP0533494A2 (en) * 1991-09-18 1993-03-24 British Nuclear Fuels PLC Treatment of radioactivity contaminated soil
DE9410041U1 (en) * 1994-06-24 1994-09-08 SEG Umwelt-Service GmbH, 66693 Mettlach Control vehicle for landfills and contaminated areas
EP0656234A1 (en) * 1993-11-04 1995-06-07 Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica Process for the biological treatment of solid waste and mud contaminated by hydrocarbons
WO1997045212A1 (en) * 1996-05-24 1997-12-04 Firma Dr. Ralf Schenke Floor-sanitation process and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029022A1 (en) * 1990-09-13 1992-03-26 Krauss Maffei Ag Tracked vehicle for clearing oil on water and sepg. mixt. - having suction appts. with adjustable height on front of vehicle, can be used in shallow water, and has beach and cross-country capability
EP0533494A2 (en) * 1991-09-18 1993-03-24 British Nuclear Fuels PLC Treatment of radioactivity contaminated soil
EP0533494A3 (en) * 1991-09-18 1993-06-09 British Nuclear Fuels PLC Treatment of radioactivity contaminated soil
EP0656234A1 (en) * 1993-11-04 1995-06-07 Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica Process for the biological treatment of solid waste and mud contaminated by hydrocarbons
DE9410041U1 (en) * 1994-06-24 1994-09-08 SEG Umwelt-Service GmbH, 66693 Mettlach Control vehicle for landfills and contaminated areas
WO1997045212A1 (en) * 1996-05-24 1997-12-04 Firma Dr. Ralf Schenke Floor-sanitation process and device

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