CS210864B1 - The way to dispose of the Gudron landfill - Google Patents

Abstract

The purpose of the invention is to solve the liquidation of a tar dump by covering it and eliminating its negative effects on the environment. The stated purpose is achieved by placing a mesh fabric that is resistant to the environment on the entire surface of the tar dump. A multilayer grate made of a material with a lower bulk density than 1.0 Mp.m is made on it. Then the upper liquid layer is pumped out, the grate rests on the mushy surface of the deposit. The entire space of the grate is filled with limestone aggregates, or dolorites, which together with the tar will form a solid mass. The design of the grate will allow movement on the tar dump when depositing aggregates. The mesh fabric will not allow the aggregates to drown at an uncontrollable depth. The entire grate and aggregates are covered with soil, humus and grass.

Description

The present invention relates to a method for disposing of a landfill site formed by a dam.

Gudrons are waste in some manufacturing processes in the petrochemical industry. They are mushy consistency, inaccessible, cannot be covered.

A disadvantage of the previously known landfills is that water-soluble sulphides, loose and oils are leached out of the gudrons by precipitation water, which make it impossible to evaporate the precipitation water.

In order not to spill over the top of the liquid layer, which increases constantly after each rain over the crown of the perimeter dam, the gudron dump must be laboriously maintained even after it has been filled. Contaminated rainwater from the Gudron dump has a negative impact on the recipient into which it is discharged. Waterfowl - often rare and protective species and often also animals - die on the surface.

The current method of disposing of shallow dumps in small landfills consisted in their imperfect filling with soil. Gudron landfills disposed of in this way continue to have a negative impact on the environment. So far, the case of the disposal of a deeper and larger landfill of gudrons is not known.

It is known that gudrons chemically bind with limestone to form a solid mass. However, it is necessary to mix them intensively, which cannot be realized in a full landfill.

These disadvantages are overcome by the process according to the invention. According to the invention, the method of disposal of the landfill site is as follows:

A single or multilayer mesh is laid over the entire surface of the gudron composition, resistant to the environment in which it is located and strong enough to withstand the uneven stresses to which it will be subjected when laying additional layers. On the netting, a multilayer grid made of a material with a lower density than water or of lightened elements is made and joined with it.

The netting and grid can be made in winter on ice (most preferably), at another time of the year with the help of boats, or prepared in portions on the shore and connected on the surface.

After the ice has thawed, the liquid surface layer is drained. The grate, together with the mesh, sits on the surface of the gudrons. The whole grate area is filled with crushed limestones or dolomites, which form a solid mass with gudrons. Týaito ^- these advantages are achieved; The construction of the grate will allow movement on the gudron dump while depositing crushed limestone (dolomite).

The netting under the grate will not allow drowning in limestone / dolomite / gudrons in uncontrolled depth. At the same time, however, it will allow gudrons of slurry consistency to penetrate under the weight of the overburden through the meshes up into the layer of crushed limestone (dolomite). Gudrons and limestone (dolomites) form a solid layer. Their intensive mixing will be replaced by rectified penetration and a time factor.

Limestones (dolomites) should be covered with impermeable material to prevent atmospheric precipitation from entering the limestones (dolomites) and gudrons, then condense, graze and suitably be used subsequently.

Example of implementation

Gudron landfill with a flat area of 1.2 ha is bordered by an existing slope on two hillsides and by a 17.0 m high dam on two sides.

To hide:

They lie on the ice in only one direction at a distance of about 1.0 m from each other inferior

210864 2 thatch that I can safely move people around. Thereafter, a PVC-based woven synthetic fabric with 2x2 mm meshes and a 20 X overlap of the individual strips of fabric is stretched in two layers over the flat 1.2 hectares, the top layer perpendicular to the bottom. On two layers of fabric, a 4-layer 60 cm-high rod grate is made.

After the ice has thawed, the water is drained off to allow the grate to touch the surface of the gudrons. The entire grate area with a 10 cm overlap over the bar is filled with crushed dolomite. A layer of clay is laid on the dolomite by min. 0.5 m thick with a surface adjusted to a slight slope. The entire surface is thickened and grassed.

Over time, I will penetrate the acidic gudron wastes into the dolomites and react together to form a solid mass.

Claims (2)

OBJECT OF THE INVENTION 1. A method of disposing of a landfill of gudrons, characterized in that a single or multilayer mesh or a perforated sheet of a chemically resistant mass is deposited on the surface of the tank filled with gudrons, or a perforated film of a chemically resistant mass is deposited thereon; 0 Mp.with mesh with a diameter of 0.20 and 2.5 mo volume weight below 1.0 Mp.m also from environment-resistant material and after the liquid layer has been drained and the grate has settled on the slurry surface, the empty space of the grate is filled with aggregate limestone or other carbonate and these are covered with soil or other suitable coating. 2. Method according to claim 1, characterized in that the netting and the grid are deposited on the frozen surface of the gudron dump.