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Novel environment-friendly durable impermeable and impermeable structure based on solid waste, and impermeable barrier material

A barrier material and a new type of technology, applied in infrastructure engineering, protection devices, buildings, etc., can solve the problem of lack of special specifications for the structure of the anti-seepage layer, and achieve the effect of reducing pollution risks and blocking leakage

Pending Publication Date: 2019-07-09
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no special specification for the structure of the anti-seepage layer of Class II industrial solid waste disposal sites, and the design refers to the anti-seepage layer of landfill sites

Method used

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  • Novel environment-friendly durable impermeable and impermeable structure based on solid waste, and impermeable barrier material
  • Novel environment-friendly durable impermeable and impermeable structure based on solid waste, and impermeable barrier material
  • Novel environment-friendly durable impermeable and impermeable structure based on solid waste, and impermeable barrier material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment one: see Figure 1-3 , a new environment-friendly and durable anti-seepage and anti-seepage structure based on solid waste, including a base layer, an anti-seepage layer and a closure cover layer. The anti-seepage barrier substrate, HDPE film and geotextile made by pouring the seepage barrier material, pour the anti-seepage barrier material on the base layer according to the potential and extend to the edge of the pit mouth to form the anti-seepage barrier substrate, in the anti-seepage barrier lining Lay HDPE film and geotextile on the bottom in turn, fill the mine pit with industrial solid waste and compact it until the pit mouth and form an arched surface, and pour impermeable barrier materials on the arched surface according to the potential to form a closure cover layer. The field cover layer is connected to the upper edge of the anti-seepage barrier substrate, and the matrix soil layer for vegetation greening is laid on the field closure cover layer.

...

Embodiment 2

[0051] Embodiment two, see Figure 4 , the anti-seepage and anti-seepage structure is slightly different from Example 1. The difference is that the anti-seepage structure omits the groundwater collection flow channel. This structure is used to landfill Class I industrial solid waste. Proceed as follows:

[0052] (1) Select a suitable mine pit as a Class I industrial solid waste landfill, use a mechanical rammer to compact the bottom and edges of the pit after manually leveling the pit, and use a compaction coefficient of 0.93 as the base layer;

[0053] (2) The formula of the impermeable barrier material used: by weight percentage, 80% of fly ash,

[0054] 8% desulfurized gypsum and 12% activator quicklime were weighed separately;

[0055] Mix the above materials evenly to obtain gelling material powder; respectively pour the gelling material powder and water (water-binder ratio 0.25) into a mixer and mix to obtain an impermeable barrier material;

[0056] (3) Pour the conf...

Embodiment 3

[0060] Embodiment 3 is slightly different from Embodiment 1, and the difference lies in: the preparation method of the impermeable barrier material used:

[0061] (1) In terms of weight percentage, measure according to the ratio of 70% fly ash, 15% blast furnace slag, 8% desulfurized gypsum, and 7% cement clinker; mix all raw materials evenly to obtain cementitious material powder;

[0062] (2) Measure water according to the weight ratio of water-binder ratio of 0.3, pour the cementitious material powder and water into the mixer for mixing, pour the mixed anti-seepage material on the bottom and edge of the base layer, and pour in the order of "Z" (Construction site temperature > 5°C), pouring thickness is 40cm, vibrate after pouring;

[0063] (3) Curing starts 16 hours after pouring, using watering for natural curing, covering the surface of the material with tarpaulin and plastic cloth, and curing lasts for 30 days to obtain an impermeable barrier material.

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Abstract

The invention relates to a novel environment-friendly durable impermeable and impermeable structure based on solid waste, and an impermeable barrier material. The impermeable and impermeable structurecomprises a foundation layer, an anti-seepage layer and a sealing field cover layer; an impermeable barrier material is poured on a base layer according to potential to form an impermeable barrier substrate; an HDPE film and geotextile are laid on the substrate, a mine pit is filled with industrial solid waste and compacted, and an arch-shaped surface is formed at a mine pit opening; an impermeable barrier material is poured on the arch-shaped surface according to the potential to form a field sealing cover layer, the field sealing cover layer is connected with the upper edge of the impermeable barrier substrate, and a matrix soil layer is laid on the field sealing cover layer. According to the invention, solid wastes such as fly ash, desulfurized gypsum, blast furnace slag and the like are utilized to prepare the impermeable barrier material; industrial solid waste is buried in a waste mine pit for storage, harmless treatment is achieved, the impermeable barrier material can effectively block leakage of a solid waste leaching solution, the risk of underground water pollution is reduced, and the mine pit is designed according to the standard of a solid waste resource storage, so that further comprehensive utilization is facilitated.

Description

technical field [0001] The invention relates to the technical field of solid waste material treatment, in particular to a solid waste-based novel environmentally friendly and durable anti-seepage and anti-seepage structure and an anti-seepage barrier material. Background technique [0002] With the rapid growth of my country's industrial development, the amount of industrial solid waste storage is increasing. As far as the types of solid waste are concerned, general industrial solid waste such as fly ash and metallurgical slag accounts for a large proportion, and bulk industrial solid waste such as fly ash and metallurgical slag The generation and storage of solid waste has the most serious impact on environmental quality, and it is a key environmental problem that needs to be solved urgently. At present, the disposal methods of industrial solid waste are mainly open-air stacking without any harmless treatment measures, and only a few are disposed of by landfill and soil cove...

Claims

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Application Information

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IPC IPC(8): E02D31/00C04B28/04
CPCE02D31/004E02D31/006C04B28/04C04B2111/00724C04B2111/00293C04B18/08C04B18/142C04B22/145C04B22/064C04B14/104
Inventor 张雪峰贾晓林徐文利丁茂刘芳
Owner INNER MONGOLIA UNIV OF SCI & TECH
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