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Household refuse landfill in-situ pollution control method

A technology for pollution control and domestic waste, applied in separation methods, chemical instruments and methods, contaminated groundwater/leachate treatment, etc. cost, the effect of reducing pollution intensity and reducing operating costs

Active Publication Date: 2022-04-26
TIANJIN JIANCHANG ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) Scale problem: due to the low population density in the loess area and the scattered townships, the township population is also scattered. Most townships have about 20,000 people, and the daily garbage output is between 10 and 30 tons. If garbage is disposed of in a centralized manner, the local government will bear high transportation costs
[0008] (4) Rainfall: The meteorological characteristics of this area are high evaporation, less precipitation, and evaporation is far greater than rainfall. In such a dry area, the additional leachate produced by the landfill due to rainfall is also small, and it is also Greatly reduces the disadvantage of high leachate output of landfill technology for waste disposal

Method used

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Experimental program
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Effect test

Embodiment 1

[0050] A method for in-situ pollution control of domestic waste landfills, comprising the steps of:

[0051] ① Cover the surface of the pile with loess

[0052] The garbage dump body 1 is leveled and compacted, and then the loess is paved to compact the loess, with a height of 30cm, and the thickness of loose paving is no more than 30cm each time, to complete the laying of the loess covering layer 2; in the loess area, the loess resource is very rich, and the The advantage of loess as a covering layer is that it is low in cost. In addition, its natural water content is between 3 and 26%, and its water holding capacity is poor, so it is suitable as an irrigation covering layer.

[0053] ②The leachate circulation irrigation pipeline system is laid on the top of the loess covering

[0054] After the laying of the top loess cover layer 2 is completed, the leachate circulation irrigation pipeline system shall be laid by the way of secondary slotting. 2 The bottom of the geotechni...

Embodiment 2

[0064] A method for in-situ pollution control of domestic waste landfills, comprising the steps of:

[0065] ① Cover the surface of the pile with loess

[0066] The rubbish dump body 1 is leveled and compacted, and then the loess is paved and compacted, with a height of 50cm, and the thickness of each loose layer is not more than 30cm, and the laying of the loess covering layer 2 is completed; in the loess area, the loess resource is very rich, and the The advantage of loess as a covering layer is that it is low in cost. In addition, its natural water content is between 3 and 26%, and its water holding capacity is poor, so it is suitable as an irrigation covering layer.

[0067] ②The leachate circulation irrigation pipeline system is laid on the top of the loess covering

[0068] After the laying of the top loess cover layer 2 is completed, the leachate circulation irrigation pipeline system shall be laid by the way of secondary slotting. 2 The bottom of the geotechnical fil...

Embodiment 3

[0078] A method for in-situ pollution control of domestic waste landfills, comprising the steps of:

[0079] ① Cover the surface of the pile with loess

[0080]The rubbish dump body 1 is leveled and compacted, and then the loess is paved and compacted, with a height of 45cm, and the thickness of loose paving is no more than 30cm each time, and the laying of the loess covering layer 2 is completed; in the loess area, the loess resource is very rich, and the The advantage of loess as a covering layer is that it is low in cost. In addition, its natural water content is between 3 and 26%, and its water holding capacity is poor, so it is suitable as an irrigation covering layer.

[0081] ②The leachate circulation irrigation pipeline system is laid on the top of the loess covering

[0082] After the laying of the top loess cover layer 2 is completed, the leachate circulation irrigation pipeline system shall be laid by the way of secondary slotting. 2 The bottom of the geotechnical...

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Abstract

The invention relates to an in-situ pollution control method for a household garbage landfill. The in-situ pollution control method comprises the following steps: (1) covering the surface of a heap with loess; (2) laying a leachate circulating irrigation pipeline system on the loess covering top; (3) laying a perforated aeration pipeline; (4) mounting an aeration fan; (5) installing a circulating lift pump; and (6) in-situ pollution control operation. The method has the advantages that the purpose of degrading the landfill leachate in the loess arid area in the landfill can be achieved, reduction of the leachate can be completed through the evaporation effect of the covering layer, and finally the effect that the landfill leachate is not discharged outwards is achieved; meanwhile, by means of the function of the biological reaction bed of the covering layer, odor discharged from the surface of the garbage heap is adsorbed and degraded, the pollution intensity of the odor is reduced, and then the purpose of in-situ pollution control over the domestic garbage landfill in the loess area is achieved.

Description

technical field [0001] The invention relates to the technical field of garbage landfill, in particular to an in-situ pollution control method of domestic garbage landfill. Background technique [0002] The secondary pollutants of domestic waste landfills are mainly leachate and odor, which are also the main reasons affecting the NIMBY effect of domestic waste landfills. Usually the leachate needs to be treated centrally by the leachate treatment plant, and the direct cost of treatment is as high as 80-150 yuan / m 3 , is also an extremely important factor that causes the high operating cost of the landfill; and the odor is indeed the main factor of the air environment around the landfill, and the traditional method of covering the landfill with auxiliary chemical deodorization is not very effective. [0003] my country's loess geological area is about 635,280 square kilometers, accounting for about 4.9% of the world's total loess distribution area and 6% of my country's land ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14B01D53/84C02F103/06
CPCC02F9/00B01D53/84C02F7/00C02F1/04C02F3/28C02F2103/06B01D2257/90Y02A50/20
Inventor 胡泸丹蒲红霞张根升魏新庆彭浏湘张旭晨贺实月薛剑凡张蕾王立彤夏季
Owner TIANJIN JIANCHANG ENVIRONMENTAL PROTECTION
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