CN106613138A - Ecological restoration method of solid waste yards - Google Patents

Ecological restoration method of solid waste yards Download PDF

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Publication number
CN106613138A
CN106613138A CN201611008490.5A CN201611008490A CN106613138A CN 106613138 A CN106613138 A CN 106613138A CN 201611008490 A CN201611008490 A CN 201611008490A CN 106613138 A CN106613138 A CN 106613138A
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CN
China
Prior art keywords
solid waste
clay
compaction
thickness
compacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611008490.5A
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Chinese (zh)
Inventor
张卫
王勇坚
娄志平
谢施施
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Xishi Eco Polytron Technologies Inc
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Xishi Eco Polytron Technologies Inc
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Publication date
Application filed by Xishi Eco Polytron Technologies Inc filed Critical Xishi Eco Polytron Technologies Inc
Priority to CN201611008490.5A priority Critical patent/CN106613138A/en
Publication of CN106613138A publication Critical patent/CN106613138A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005Cultivation methods
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G20/00Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B1/00Dumping solid waste
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/006Sealing of existing landfills, e.g. using mining techniques

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Botany (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a method for ecological restoration of solid waste yards including heavy metal residues and toxic chemical waste. Its feature is that it comprises the following steps :( 1) the solid wastes in the yards are mixed uniformly with fixing agent and water, and then rolled in compaction. (2)In the process of compaction, the center position of yards is the high spot, the slope gradually tilted to the surrounding with a degree more than 5 degrees less than 45 degrees; (3) after the compaction of solid wastes,an impervious layer is placed on the solid wastes, then pile and compact the clay of thickness of 10 cm - 20 cm on impermeable layer; (4) a sand layer of thickness of 1 cm to 3 cm is placed and compacted on the compacted clay;(5) soil of cultivation of thickness of 30 cm - 45 cm is laid on the compacted sand layer, trees or grass seedlings are planted on the soil of cultivation ; the invention adopts the non-woven fabric and waterproof blanket in the clay to closed solid waste ,pollutants is effectively prevented from leaking into the water and spreading out; Grass and trees are planted on top of the cultivated soil to achieve the goal of ecological restoration of solid waste yards.

Description

Solid waste stacks field ecological recovery method
Technical field
The present invention relates to a kind of processing method of discarded object, specifically a kind of solid waste stacking field ecological recovery Method, more particularly to a kind of solid waste stacking field ecological recovery for including heavy metal residue and noxious chemical wastess Method.
Background technology
At present, due to industrialization and urbanization, the solid waste such as produced many industrial refuses, house refuse is stacked In the periphery in factory, mine or city.Because the country does not carry out mandatory classifications to rubbish, the also custom without refuse classification, Therefore, solid waste is particularly in Mine Solid Wastes and mixes metallic residue emphatically and poisonous chemical waste unavoidably, Pile up on soil surface, destroy soil, natural landscape and the vegetation of earth's surface, soil erosion aggravation is caused seriously to ecological environment Destruction, and content of beary metal and chemical agent in solid waste are more, and to surface water and groundwater severe contamination is caused.Mesh Before, it is general using process or reclaim process or the landfill disposal of banking up(Brief talk the process of Mine Solid Wastes and created using science and technology New № .02 environmental sciences P146 of Leader 2013.).
The content of the invention
It is an object of the invention to provide a kind of solid waste stacks field ecological recovery method.
The present invention is adopted the following technical scheme that and realizes its goal of the invention, and a kind of solid waste stacks field ecological recovery Method, it is comprised the following steps:
(1) the solid waste in field will be stacked to be well mixed with fixative and water, compacting is rolled;
(2) in compacting process, the center for making stacking field is high point, is gradually inclined to periphery with 5 ° of 45 ° of < gradients <;
(3) impervious barrier is placed in solid waste after compaction, the clay that thickness is 10 ㎝~20 ㎝, pressure are stacked on impervious barrier It is real;
To avoid impervious barrier from moving in solid waste, the present invention step (3) in, solid waste first after compaction It is upper to stack the clay that thickness is 10 ㎝~20 ㎝, compacting;Impervious barrier is placed again, stacks thickness on impervious barrier again for 10 ㎝~20 ㎝ Clay, compacting.
(4) the sand bed that thickness is 1 ㎝~3 ㎝, compacting are stacked on clay after compaction;
(5) after compaction the cultivation of ㎝~45 ㎝ of laying depth 30 is native above sand bed, and upper sapling or grass seedling are planted on cultivation soil.
Impervious barrier of the present invention is non-woven fabrics or waterproof blanket.
Due to adopting above-mentioned technical proposal, the present invention preferably to realize goal of the invention, to solid waste by middle height, The low design of periphery is implemented smooth and is rolled, and one is to reduce the space that solid waste is occupied;Two is using embedding nothing in clay Spin cloth or waterproof blanket closes the extexine of solid waste, rainwater oozes out to descending along the inclined-plane that solid waste is constituted, has Effect prevents rainwater from penetrating into solid waste, so as to prevent solid waste because rainwater penetrate into pollute thing dissolve in rainwater and Outwards seepage diffusion;Three is that fixative is added with solid waste, can be under conditions of watering down without rainwater, by chemistry Reaction and attached function reduce the activity of chemical pollutant and heavy metal element;Four is on the cultivation soil at the top of solid waste Plant grass, plant trees, reach the purpose that solid waste stacks field ecological recovery.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Embodiment 1:
As shown in Figure 1, a kind of solid waste stacks field ecological recovery method, and it is comprised the following steps:
(1) the solid waste in field will be stacked to be well mixed with fixative and water, compacting is rolled;
(2) in compacting process, the center for making stacking field is high point, is gradually inclined to periphery with 5 ° of 45 ° of < gradients <;
(3) impervious barrier is placed in solid waste after compaction, the clay that thickness is 10 ㎝~20 ㎝, pressure are stacked on impervious barrier It is real;
(4) the sand bed that thickness is 1 ㎝~3 ㎝, compacting are stacked on clay after compaction;
(5) after compaction the cultivation of ㎝~45 ㎝ of laying depth 30 is native above sand bed, and upper sapling or grass seedling are planted on cultivation soil.
Impervious barrier of the present invention is non-woven fabrics or waterproof blanket.
The present embodiment is first well mixed to stacking the solid waste 1 on field with fixative and water, is implemented to grind with mechanization Pressure compacting, in compacting process, the center for making stacking field is high point, is inclined gradually to periphery with 10 ° of the gradient from high point. The fixative is a kind of chemical fixatives repaired for heavy-metal contaminated soil disclosed in the patent No. 201310224997.4. Using when, solid waste 1:Fixative:The ratio of water is 100:(4~6):(30~50).
Impervious barrier 3 is placed in solid waste 1 after compaction, the clay 2 that thickness is 20 ㎝, pressure are stacked on impervious barrier 3 It is real;Impervious barrier 3 selects non-woven fabrics.
The sand bed 4 that thickness is 3 ㎝, compacting are stacked on clay 2 after compaction;The above laying depth of sand bed 4 after compaction The cultivation soil 5 of 30 ㎝, plants upper grass seedling 6 on cultivation soil 5.
Soil 5 is cultivated described in the present embodiment includes clean soil, organic matter, fertilizer, water-loss reducer, stabilizer, acidity regulator And disinfectant, by a certain percentage mixture form(By weight).Clean soil takes unpolluted soil, and organic matter adopts straw Or rice straw or wood fiber powder are broken into 10 ㎜~15 ㎜, fertilizer increases barren side slope fertility using quick-acting chemical fertilizer and slow chemical fertilizer, carries For the nutrition required for plant growth, water-loss reducer adopts polyacrylamide, stabilizer to select pollution-free adhesive, acidity regulator Adjust the pH value of soil so as in neutral acidity on the weak side, disinfectant is used for killing except harmful bacteria contained in soil.
Solid waste of the present invention 1 is implemented smooth and is rolled by middle height, the low design of periphery, and one is to reduce solid to give up The space that gurry is occupied;Two is the extexine that solid waste is closed using embedding non-woven fabrics in clay or waterproof blanket, rainwater along The inclined-plane that solid waste is constituted oozes out to descending, effectively prevents rainwater from penetrating into solid waste, so as to prevent solid waste Thing dissolves in rainwater and outside seepage diffusion because rainwater infiltration pollutes thing;Three is that fixative is added with solid waste, Chemical pollutant and heavy metal element can be reduced by chemical reaction and attached function under conditions of watering down without rainwater Activity;Four is to plant grass on cultivation soil at the top of solid waste, plant trees, and has reached solid waste and has stacked field ecological recovery Purpose.
Embodiment 2:
As shown in Figure 2, to avoid impervious barrier 3 from moving in solid waste 1, the present invention step (3) in, first after compaction Solid waste 1 on stack thickness be 10 ㎝~20 ㎝ clay 2, compacting;Impervious barrier 3 is placed again, is stacked again on impervious barrier 3 Thickness is the clay 2 of 10 ㎝~20 ㎝, compacting.
The present embodiment impervious barrier 3 adopts waterproof blanket, and the waterproof blanket is GCL, and it is natural by what is matched somebody with somebody through level Na-bentonite soil particle and corresponding additive are mixed into raw material, Jing needling processes and equipment, and bentonite clay particle is fixed on Blanket waterproof roll made by between geotextiles and plastic woven cloth.GCL was both all special with earth working material Property, and with excellent waterproof(Ooze)Performance.
So, impervious barrier 3 is difficult movement in solid waste 1, enhances the antiseepage effect of impervious barrier 3.
Remaining same embodiment 1.

Claims (3)

1. a kind of solid waste stacks field ecological recovery method, it is characterized in that it is comprised the following steps:
(1) the solid waste in field will be stacked to be well mixed with fixative and water, compacting is rolled;
(2) in compacting process, the center for making stacking field is high point, is gradually inclined to periphery with 5 ° of 45 ° of < gradients <;
(3) impervious barrier is placed in solid waste after compaction, the clay that thickness is 10 ㎝~20 ㎝, pressure are stacked on impervious barrier It is real;
(4) the sand bed that thickness is 1 ㎝~3 ㎝, compacting are stacked on clay after compaction;
(5) after compaction the cultivation of ㎝~45 ㎝ of laying depth 30 is native above sand bed, and upper sapling or grass seedling are planted on cultivation soil.
2. solid waste according to claim 1 stacks field ecological recovery method, it is characterized in that step (3) in, first The clay that thickness is 10 ㎝~20 ㎝, compacting are stacked in solid waste after compaction;Impervious barrier is placed again, on impervious barrier again Stack the clay that thickness is 10 ㎝~20 ㎝, compacting.
3. the solid waste according to claim 1 or 2 or 3 stacks field ecological recovery method, it is characterized in that the antiseepage Layer is non-woven fabrics or waterproof blanket.
CN201611008490.5A 2016-11-16 2016-11-16 Ecological restoration method of solid waste yards Pending CN106613138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611008490.5A CN106613138A (en) 2016-11-16 2016-11-16 Ecological restoration method of solid waste yards

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Application Number Priority Date Filing Date Title
CN201611008490.5A CN106613138A (en) 2016-11-16 2016-11-16 Ecological restoration method of solid waste yards

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107241988A (en) * 2017-06-14 2017-10-13 深圳市万卉园景观工程有限公司 A kind of antiseepage antiskid type bare slope revegetation matrix Rotating fields
CN107593018A (en) * 2017-09-15 2018-01-19 大连地拓环境科技有限公司 A kind of method and conditioned soil by Abandoned Land of Mine reparation into nursery land used
CN108273833A (en) * 2018-03-13 2018-07-13 上海市园林科学规划研究院 The layering on the spot of building solid waste utilizes and the application on reducing soil alkaline
CN108513849A (en) * 2018-03-13 2018-09-11 上海市园林科学规划研究院 A method of the more caves of plantation arbor are layered consumption solid waste
CN110106826A (en) * 2019-04-18 2019-08-09 重庆交通大学 River bed microorganism grouting ecological anti-seepage system and its construction method
CN110130307A (en) * 2019-05-09 2019-08-16 河海大学 A kind of ecological restoration of mine system and ecological restoring method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1843923A (en) * 2006-04-03 2006-10-11 贵阳铝镁设计研究院 House-sealing method for dry-process piling yard of red mud
CN103275725A (en) * 2013-06-07 2013-09-04 中南大学 Chemical fixing agent for heavy metal contaminated soil remediation and preparation and application thereof
CN205530203U (en) * 2015-12-16 2016-08-31 北京高能时代环境技术股份有限公司 Domestic waste landfill yard closes structure for wastes material is sharp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1843923A (en) * 2006-04-03 2006-10-11 贵阳铝镁设计研究院 House-sealing method for dry-process piling yard of red mud
CN103275725A (en) * 2013-06-07 2013-09-04 中南大学 Chemical fixing agent for heavy metal contaminated soil remediation and preparation and application thereof
CN205530203U (en) * 2015-12-16 2016-08-31 北京高能时代环境技术股份有限公司 Domestic waste landfill yard closes structure for wastes material is sharp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107241988A (en) * 2017-06-14 2017-10-13 深圳市万卉园景观工程有限公司 A kind of antiseepage antiskid type bare slope revegetation matrix Rotating fields
CN107593018A (en) * 2017-09-15 2018-01-19 大连地拓环境科技有限公司 A kind of method and conditioned soil by Abandoned Land of Mine reparation into nursery land used
CN108273833A (en) * 2018-03-13 2018-07-13 上海市园林科学规划研究院 The layering on the spot of building solid waste utilizes and the application on reducing soil alkaline
CN108513849A (en) * 2018-03-13 2018-09-11 上海市园林科学规划研究院 A method of the more caves of plantation arbor are layered consumption solid waste
CN110106826A (en) * 2019-04-18 2019-08-09 重庆交通大学 River bed microorganism grouting ecological anti-seepage system and its construction method
CN110130307A (en) * 2019-05-09 2019-08-16 河海大学 A kind of ecological restoration of mine system and ecological restoring method

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