Refuse landfill surface covering material and application thereof

A technology for landfill and surface covering, which is used in the field of surface covering materials for landfills and environmental protection, can solve the problems of low material utilization rate and easy combustion, and achieve the effects of long service life, low cost and simple construction.

Inactive Publication Date: 2014-07-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spray covering uses a lot of organic materials, which are easy to burn
Clay is used as covering material in CN201010213155 and CN200810069470, but the utilization rate of the material is low, and there are still half of the flammable organic materials

Method used

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  • Refuse landfill surface covering material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] formula:

[0023] 1) Gel adhesive, gypsum 18 kg;

[0024] 2) Aggregate, fly ash 35 kg;

[0025] 3) Foaming agent, protein foaming agent (commercially available, produced by Tianjin Xiongguan Technology Development Co., Ltd.) 5 kg;

[0026] 4) Surfactant, sodium dodecyl sulfate (SDS) 2 kg;

[0027] 5) Water, 40 kg;

[0028] Pour the raw materials of this formula into a blender, stir for 60 minutes to mix evenly, then pour into a foaming machine (commercially available) for foaming; the foamed material is sprayed on the surface of the garbage dump with a jet machine, and it will lose water and solidify after 24 hours Form a protective layer of about 6cm on the surface of the garbage.

Embodiment 2

[0030] formula:

[0031] 1) Gel adhesive, cement (sulfoaluminate cement) 18 kg;

[0032] 2) Aggregate, vitrified beads 35 kg;

[0033] 3) Foaming agent, protein foaming agent (commercially available, produced by Tianjin Xiongguan Technology Development Co., Ltd.) 5 kg;

[0034] 4) Surfactant, sodium dodecylbenzene sulfate (K12) 2 kg;

[0035] 5) Water, 40 kg;

[0036] Pour the raw materials of this formula into a blender, stir for 60 minutes and mix evenly, then pour into a foaming machine (commercially available) for foaming. The foamed material is sprayed onto the surface of the garbage dump with a jet machine. After 24 hours, it will lose water and solidify to form a protective layer of about 6cm on the surface of the garbage.

Embodiment 3

[0038] 1) Gel adhesive, cement (sulfoaluminate cement) 18 kg;

[0039] 2) Aggregate, fly ash 35 kg;

[0040] 3) Foaming agent, hydrogen peroxide 5 kg;

[0041] 4) Surfactant, sodium dodecylbenzene sulfate (K12) 2 kg;

[0042] 5) Water, 40 kg;

[0043] Pour the raw materials of this formula into a blender, stir for 60 minutes and mix evenly, then pour into a foaming machine (commercially available) for foaming. The foamed material is sprayed onto the surface of the garbage dump with a jet machine. After 24 hours, it will lose water and solidify to form a protective layer of about 5cm on the surface of the garbage.

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Abstract

The invention discloses a refuse landfill surface covering material and an application thereof. The refuse landfill surface covering material consists of a gel adhesive, aggregates, a foaming agent, a surfactant and a viscosity regulator. The refuse landfill surface covering material has characteristics of being low in cost, environment-friendly, less in organic substance content, convenient to construct, and the like; and the refuse landfill surface covering material is applied to covering the refuse landfill surface, less in dosage, good in sealing effect, low in cost and capable of being widely popularized and used.

Description

technical field [0001] The invention relates to a landfill surface covering material and its application, belonging to the technical category of environmental protection. Background technique [0002] In my country's "Technical Specifications for Municipal Solid Waste Sanitary Landfill (CJJ17-2004)", it is required that landfill waste should be operated in units and layers. After the completion of each unit operation, daily coverage should be carried out. The thickness of the covering layer is determined according to the covering material. The thickness of the soil covering layer is 20-25cm; For intermediate covering, the thickness of the covering layer is determined according to the covering material, and the thickness of the soil covering layer is greater than 30cm. When the landfill reaches the design closure conditions, it shall be covered finally, and the thickness of the covering layer shall be 90cm. The materials used for garbage covering should take into account th...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/10C04B28/14C04B38/02C04B18/08C04B14/10C04B14/22
CPCY02W30/91
Inventor 江文辉
Owner CENT SOUTH UNIV
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