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DE20023685U1 - Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well - Google Patents

Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well Download PDF

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Publication number
DE20023685U1
DE20023685U1 DE20023685U DE20023685U DE20023685U1 DE 20023685 U1 DE20023685 U1 DE 20023685U1 DE 20023685 U DE20023685 U DE 20023685U DE 20023685 U DE20023685 U DE 20023685U DE 20023685 U1 DE20023685 U1 DE 20023685U1
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Germany
Prior art keywords
well
ground water
injection well
oxygen
nitrogen
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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.)
Expired - Lifetime
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DE20023685U
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German (de)
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DE20023685U8 (en
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IUG INGENIEURGESELLSCHAFT fur
Iug Ingenieurgesellschaft fur Umweltgeologie und Geotechnik Gommeringer and Partner
Original Assignee
IUG INGENIEURGESELLSCHAFT fur
Iug Ingenieurgesellschaft fur Umweltgeologie und Geotechnik Gommeringer and Partner
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Application filed by IUG INGENIEURGESELLSCHAFT fur, Iug Ingenieurgesellschaft fur Umweltgeologie und Geotechnik Gommeringer and Partner filed Critical IUG INGENIEURGESELLSCHAFT fur
Priority to DE20023685U priority Critical patent/DE20023685U1/en
Publication of DE20023685U1 publication Critical patent/DE20023685U1/en
Publication of DE20023685U8 publication Critical patent/DE20023685U8/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Physical Water Treatments (AREA)

Abstract

Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well to promote chemical and/or microbial conversion of the alkyl lead compounds into inorganic lead.

Description

Beschreibung und Zweck der Vorrichtung:Description and purpose the device:

Die Vorrichtung Luftinjektionsbrunnen dient der in-situ Reinigung der gesättigten Bodenzone. Die Vorrichtung besteht aus einem Luftinjektionsbrunnen. Der Luftinjektionbrunnen ist eine Grundwassersanierungstechnik nach dem Prinzip des Grundwasserzirkulationsverfahrens. Zweck ist, durch Eintrag von Luftsauerstoff und/oder Anreicherung des Grundwassers mit einem anderen Gas eine chemische und/oder mikrobiologische Umwandlung von Grundwasserschadstoffen zu bewirken. Weiter wird bezweckt, eine Mobilisierung der löslichen Grundwasserschadstoffe in Bereiche außerhalb der in Gang gesetzten Grundwasser-Zirkulationswalze zu verhindern. Außerdem wird bezweckt, durch Ausstrippen die leichtflüchtigen Grundwasserschadstoffe zu entfernen.The Air injection well is used for in-situ cleaning of the saturated Soil zone. The device consists of an air injection well. The air injection well is a groundwater remediation technique the principle of the groundwater circulation method. Purpose is through Entry of atmospheric oxygen and / or enrichment of groundwater with another gas a chemical and / or microbiological conversion of groundwater pollutants. Next is the purpose of one Mobilization of the soluble Groundwater pollutants in areas outside of the set Groundwater circulation roll to prevent. In addition, the purpose is through Stripping out the volatiles To remove groundwater pollutants.

Das Einblasen von Luft bewirkt eine Aufhöhung des Grundwasserspiegels in der Umgebung des Brunnens (6). Die im Brunnenrohr aufsteigenden Luftblasen erzeugen ein Wasser-Luft-Gemisch mit der Spiegellage ΔlB über dem Grundwasserspiegel. Die eingeblasene Luftmenge ist relativ gering und ist abhängig von der gewünschten Aufhöhung der Wasser-Luft-Spiegellage. Die einzubringende Luftmenge bei einem durchschnittlich durchlässigen Porengrundwasserleiter mit kf = 10–4 m/s beträgt ca. 1,5 m3/h. Infolge der Erhöhung der Wasser-Luft-Spiegellage im Brunnenrohr wird ein Druckunterschied im Brunnenrohr und im umgebenden Aquifer erzeugt, wodurch ein Zu- und Abfluß im Brunnenrohr bzw. eine Zirkulationsströmung (12) um den Brunnen in Gang gesetzt wird. Aufgrund der Kontinuitätsbedingung entspricht der Grundwasserzustrom (10) dem Grundwasserabstrom (11) des Brunnens.The injection of air causes an elevation of the groundwater level in the vicinity of the well ( 6 ). The rising in the well pipe bubbles create a water-air mixture with the mirror position .DELTA.l B above the groundwater level. The amount of air blown in is relatively small and depends on the desired elevation of the water-air mirror position. The amount of air to be introduced in an average permeable pore aquifer with k f = 10 -4 m / s is about 1.5 m 3 / h. As a result of the increase in the water-air mirror position in the well pipe, a pressure difference is generated in the well pipe and in the surrounding aquifer, whereby an inflow and outflow in the well pipe or a circulation flow ( 12 ) is started around the fountain. Due to the continuity condition, the groundwater inflow ( 10 ) the groundwater outflow ( 11 ) of the fountain.

Zur Trennung des Luft/Wassergemisches (Schaumbildung) in die Einzelkomponenten kann der Brunnenkopf mit größerem Durchmesser ausgebildet sein.to Separation of the air / water mixture (foaming) into the individual components can the wellhead with larger diameter be educated.

Der Betrieb eines Luftinjektionsbrunnens reichert den Grundwasserleiter mit Luftsauerstoff (13) oder mit einem anderen Gas an. Die Anreicherung des Grundwassers mit Luftsauerstoff oder einem anderen Gas wird durch Einblasen mittels einer Injektionslanze am Brunnenfußpunkt bewirkt. Die Verteilung des gelösten Gases im Grundwasser erfolgt durch Grundwasserzirkulation (12). Durch die Anreicherung des Grundwassers mit dem gelösten Gas werden im Boden adaptierte Mikroorganismen aktiviert und zur Transformation bzw. zum Abbau von Schadstoffen (14) angeregt.The operation of an air injection well enriches the aquifer with atmospheric oxygen ( 13 ) or with another gas. The enrichment of the groundwater with atmospheric oxygen or another gas is effected by blowing in by means of an injection lance at the base of the well. The distribution of the dissolved gas in the groundwater is carried out by groundwater circulation ( 12 ). By enriching the groundwater with the dissolved gas, microorganisms adapted in the soil are activated and used for the transformation or degradation of pollutants ( 14 ).

Claims (3)

Der Luftinjektionsbrunnen besteht aus einem handelsüblichen Brunnenaufbau, in der Regel aus Kostengründen mit ø DN 50, und wird in der gesättigten Bodenzone mit Wickeldrahtfilterrohren z.B. aus VA oder aus PVC-Schlitzbrückenfilterrohren (3) zusammengesetzt. Es können auch größere oder kleine Brunnenrohrdurchmesser sowie alle für den Brunnenbau gängigen Werkstoffe verwendet werden. Die ungesättigte Bodenzone (7) wird über ihre gesamte Mächtigkeit T mit einem Vollrohr ausgebaut.The air injection well consists of a commercially available well structure, usually for cost reasons with ø DN 50, and is in the saturated soil zone with winding wire filter tubes, for example made of VA or PVC slot bridge filter tubes ( 3 ). It is also possible to use larger or smaller well pipe diameters and all common materials for well engineering. The unsaturated soil zone ( 7 ) is expanded over its entire thickness T with a full pipe. Der Einbau der Brunnenrohre in das Erdreich ist dadurch gekennzeichnet, daß er mit oder ohne Kiesschüttung erfolgt.The installation of the well pipes in the soil is characterized characterized in that with or without gravel he follows. Der Einbau der Brunnenfilterrohre (3) ist dadurch gekennzeichnet, daß die Brunnenfilterrohre möglichst mit der Lage der Grundwasseroberfläche (8) abschließen. Der Brunnen ist an der Sohle mit einer Abdeckung (5) versehen.The installation of the well filter tubes ( 3 ) is characterized in that the well filter tubes as possible with the location of the groundwater surface ( 8th ) to lock. The well is on the sole with a cover ( 5 ) Mistake.
DE20023685U 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well Expired - Lifetime DE20023685U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20023685U DE20023685U1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000129344 DE10029344A1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well
DE20023685U DE20023685U1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well

Publications (2)

Publication Number Publication Date
DE20023685U1 true DE20023685U1 (en) 2005-12-15
DE20023685U8 DE20023685U8 (en) 2006-05-04

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Family Applications (2)

Application Number Title Priority Date Filing Date
DE2000129344 Ceased DE10029344A1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well
DE20023685U Expired - Lifetime DE20023685U1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE2000129344 Ceased DE10029344A1 (en) 2000-06-20 2000-06-20 Treatment of ground water contaminated with alkyl lead compounds comprises introducing air, oxygen or nitrogen into the ground water through an injection well

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Also Published As

Publication number Publication date
DE20023685U8 (en) 2006-05-04
DE10029344A1 (en) 2001-10-18

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20060119

R150 Term of protection extended to 6 years

Effective date: 20060116

R157 Lapse of ip right after 6 years

Effective date: 20070103