Bayer Aktiengesellschaft

Slt Lining Technology Gmbh

Rolf Rink

Bernd Koglin

Wolfgang Vogel

Joachim Beyer

Josef Schafer

Hartmut Fuhr

Thomas Menzel

John-Edwin Roth

Rudolf Krause

Gerd Bauer

Heinz Bahnmuller

Hans-Otto Fricke

Method for the mutual chemical and compaction treatment of inorganic

Arrangement for covering the surface, which may be inclined, of loose material, in particular earth or waste dump material, comprising a sealing course which is provided with a top fill. In order to improve the adhesion between the sealing course and the top fill, a rough layer is arranged on the sealing course, on top of the rough layer an adhesive non-woven fabric, which cooperates with the rough layer in an adhesive manner, and on top of the non-woven fabric a retaining mat, which bonds with the top fill. The adhesive non-woven fabric and the retaining mat may be a known geotextile drainage layer which, when reversed, is used for a standard drainage arrangement.

Arrangement for covering inclined loose material surfaces

A waste dump of a standard dump class is covered with at least one waste layer of a lower dump class having a correspondingly lower hazard potential. Furthermore, at least the outer waste layer is provided with a surface-sealing system. Particularly good encapsulation of hazardous wastes is achieved if the latter are covered with other waste layers where the dump class decreases in an outward direction, so that each waste layer is enclosed by a waste layer which lies on top and is of a lower dump class. In this way, waste dumps having a high hazard potential can be reliably enclosed for a long time and isolated from the environment at less expense than in the past.

Process for sealing the surface of dumps

The accumulated waste is pressed under high pressure to form blocks or boards having high strength, low elutability and low permeability, then packed in film individually or in stacks in a dust-tight and water-tight manner and deposited in this form on a dump like building bricks. The process can be used universally for all waste which is available as bulk material and has no coarse components, such as stones, metal pieces and the like.

Process for the disposal of waste

In an operating dump, intermediate sealing layers which are provided with a drainage layer are applied for the production of a multibarrier system to prevent the penetration of seepage water, the seepage water which is collected in the drainage layer being removed and fed to a disposal system. Plastic films or sheets overlapping in the form of roofing tiles or laid as webs have proved suitable as an intermediate covering.

Process for the intermediate sealing of dumps

Growing community of inventors

Cologne, Germany

Rolf Rink