WO1995033894A1 - Procede d'etancheification de formations du sol, en particulier pour la realisation de decharges controlees sans drainage - Google Patents

Procede d'etancheification de formations du sol, en particulier pour la realisation de decharges controlees sans drainage Download PDF

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Publication number
WO1995033894A1
WO1995033894A1 PCT/LU1995/000002 LU9500002W WO9533894A1 WO 1995033894 A1 WO1995033894 A1 WO 1995033894A1 LU 9500002 W LU9500002 W LU 9500002W WO 9533894 A1 WO9533894 A1 WO 9533894A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
waste
seal
base
additive
Prior art date
Application number
PCT/LU1995/000002
Other languages
German (de)
English (en)
Other versions
WO1995033894A9 (fr
Inventor
Zeljo Zovko
Original Assignee
Firma Eco-Eco S.A.H.
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 Firma Eco-Eco S.A.H. filed Critical Firma Eco-Eco S.A.H.
Priority to AU27544/95A priority Critical patent/AU2754495A/en
Publication of WO1995033894A1 publication Critical patent/WO1995033894A1/fr
Publication of WO1995033894A9 publication Critical patent/WO1995033894A9/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B1/00—Dumping solid waste

Definitions

  • the present invention describes a simple, ecological and inexpensive method for sealing soil formations by means of mineral sealing layers, which is outstanding in the field of civil engineering or environmental protection, e.g. can be used for the production of inexpensive orderly landfills or for the rehabilitation of old disordered landfills.
  • German TA Technical 0 Instructions
  • the object on which the present invention is based is to use industrial overburden products, such as sludge, marl or ash, economically and to create a mineral seal for soil formations, in particular for landfills, which
  • the object is achieved according to the present invention in that industrial waste products are used as sealing materials.
  • the entire sealing system consists of at least three different sealing layers:
  • Sludge as a waste product from wet gravel and sand separation forms the basic material for the basic waterproofing.
  • This mud ⁇ Fig. l (2)> is treated with plenty of water and applied to the surface to be sealed ⁇ Fig. 1 (1)> - eg gravel and sand.
  • the sludge sinks into the gaps and unevenness of the surface, whereby the water prevents air bubbles from penetrating into the sludge layer that forms.
  • a second sealing layer ⁇ Fig. 1 (3)> is applied, which consists of a mixture of sludge (of the origin described above) and a broken, high-shear strength aggregate (e.g. fine, pure marl, as a waste product from a coal mine).
  • the basic seal thus finished achieves a permeability coefficient of k ⁇ 10 -11 m / s (!), which represents a reliable protection of the groundwater against seepage water.
  • the garbage to be deposited is covered daily on the landfill by an inexpensive and water-absorbent aggregate (e.g. slag with ash from a boiler) and mechanically compacted.
  • an inexpensive and water-absorbent aggregate e.g. slag with ash from a boiler
  • the resulting intermediate seal ⁇ Fig. 1 (4)> still achieves a permeability coefficient k ⁇ 10 9 m / s.
  • the last barrier is the surface seal ⁇ Fig. 1 (5)>.
  • humus is mixed with a fine, very low-shear aggregate (e.g. marl from a coal mine) and applied to the landfill body.
  • a fine, very low-shear aggregate e.g. marl from a coal mine
  • a landfill manufactured in this way works well without a drainage system: On the one hand, the landfill body is covered with a new intermediate sealing layer at short intervals (e.g. daily). On the other hand, this seal, in particular, acts like a sponge due to its water-absorbent additives, which does not pass on the moisture it absorbs.
  • the base and intermediate seals each with a slight incline, can be arranged in cross-sections one above the other in a cassette or honeycomb manner ⁇ Fig. 2>.
  • the garbage-containing intermediate seals (2) are encapsulated by several high-density base sealing layers (1), so that even larger landfills can be built using this method without drainage, but with the greatest possible protection of the groundwater.
  • Fig.1 shows schematically a cross section through the mineral seal.
  • sludge (2) or a mixture (3) of sludge and fine marl forms the base seal, which is applied to a surface to be sealed (1) - eg sand and gravel.
  • the intermediate seal (4) consists of a compressed mixture of waste and slag with ash.
  • the mixture of humus and marl forms the surface seal (5).
  • FIG. 2 shows the cassette or honeycomb-like arrangement of the sealing layers in the diagram, the intermediate seals (2) being encapsulated by the base layers (1).
  • the cassette system is covered by a mixture of humus and marl (3).
  • the advantage of the invention described here lies in the very cost-effective way, above all, of producing large-area seals, which can be used economically mainly in landfill construction or in the remediation of contaminated sites.
  • the use of industrial waste and overburden products as sealing materials is an important ecological component of this invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention a pour objet un procédé d'étanchéification de formations du sol, en particulier pour encapsuler des déchets anciens ou pour réaliser des décharges contrôlées sans drainage. Le procédé utilise trois couches d'étanchéification minérales séparées, la couche de base (2, 3) et la couche superficielle (5) présentant des coefficients de perméabilité extrêmement faibles, tandis que la couche intermédiaire (4), entourant les déchets anciens ou les ordures, présente un pouvoir de sorption élevé et un coefficient de perméabilité également faible. Le pouvoir de sorption élevé de cette couche, ainsi qu'une structure en nids d'abeille de la couche de base et de la couche intermédiaire, permettent de se passer d'un système de drainage, dans le cas d'une décharge. L'utilisation de déchets et de déblais spécifiques en tant que matériaux d'étanchéité pour les différentes couches (par exemple marne, scorie, cendres et boues issues de la séparation humide de gravier et de sable) permet d'obtenir un procédé assurant une réalisation économique et écologique de l'étanchéification ou de l'encapsulation.
PCT/LU1995/000002 1994-06-02 1995-06-01 Procede d'etancheification de formations du sol, en particulier pour la realisation de decharges controlees sans drainage WO1995033894A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27544/95A AU2754495A (en) 1994-06-02 1995-06-01 Method of sealing earth structures, in particular for creating controlled waste dumps without drainage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88493 1994-06-02
LU88493A LU88493A1 (de) 1994-06-02 1994-06-02 Verfahren zur Abdichtung mittels Erdbarrieren, insbesondere zur Hertellung von geordneten Deponien ohne Drainage

Publications (2)

Publication Number Publication Date
WO1995033894A1 true WO1995033894A1 (fr) 1995-12-14
WO1995033894A9 WO1995033894A9 (fr) 1996-02-15

Family

ID=19731475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/LU1995/000002 WO1995033894A1 (fr) 1994-06-02 1995-06-01 Procede d'etancheification de formations du sol, en particulier pour la realisation de decharges controlees sans drainage

Country Status (3)

Country Link
AU (1) AU2754495A (fr)
LU (1) LU88493A1 (fr)
WO (1) WO1995033894A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322137A (en) * 1997-02-14 1998-08-19 Unilever Plc Detergent composition with soil release agents
WO2012006981A1 (fr) * 2010-07-12 2012-01-19 K + S Aktiengesellschaft Système d'étanchéité de base pour une décharge, en particulier une décharge de résidus de sel
US8920693B2 (en) 2011-02-04 2014-12-30 Universität Kassel Method for the production of a fiber-reinforced thermoplastic polymer and extrusion die and device for the temperature control a fiber strand impregnated with a polymer melt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505076A1 (de) * 1985-02-14 1986-08-14 Ed. Züblin AG, 7000 Stuttgart Adsorptionsschicht
WO1989001547A1 (fr) * 1987-08-20 1989-02-23 Kuegler Jost Ulrich Procede pour etancher des couches de sol, notamment pour creer des decharges de dechets
WO1991016153A1 (fr) * 1990-04-20 1991-10-31 Klaus Grabbe Decharge de dechets et son procede de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505076A1 (de) * 1985-02-14 1986-08-14 Ed. Züblin AG, 7000 Stuttgart Adsorptionsschicht
WO1989001547A1 (fr) * 1987-08-20 1989-02-23 Kuegler Jost Ulrich Procede pour etancher des couches de sol, notamment pour creer des decharges de dechets
WO1991016153A1 (fr) * 1990-04-20 1991-10-31 Klaus Grabbe Decharge de dechets et son procede de fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322137A (en) * 1997-02-14 1998-08-19 Unilever Plc Detergent composition with soil release agents
WO2012006981A1 (fr) * 2010-07-12 2012-01-19 K + S Aktiengesellschaft Système d'étanchéité de base pour une décharge, en particulier une décharge de résidus de sel
US8920693B2 (en) 2011-02-04 2014-12-30 Universität Kassel Method for the production of a fiber-reinforced thermoplastic polymer and extrusion die and device for the temperature control a fiber strand impregnated with a polymer melt

Also Published As

Publication number Publication date
LU88493A1 (de) 1994-12-01
AU2754495A (en) 1996-01-04

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