CN107159692A - Heavy metal pollution place disposal system and method - Google Patents
Heavy metal pollution place disposal system and method Download PDFInfo
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- CN107159692A CN107159692A CN201710530077.3A CN201710530077A CN107159692A CN 107159692 A CN107159692 A CN 107159692A CN 201710530077 A CN201710530077 A CN 201710530077A CN 107159692 A CN107159692 A CN 107159692A
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 19
- 239000002689 soil Substances 0.000 claims abstract description 81
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000004888 barrier function Effects 0.000 claims abstract description 29
- 238000001179 sorption measurement Methods 0.000 claims abstract description 23
- 230000008595 infiltration Effects 0.000 claims abstract description 16
- 238000001764 infiltration Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 238000007596 consolidation process Methods 0.000 claims description 29
- 241000196324 Embryophyta Species 0.000 claims description 28
- 239000002131 composite material Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 20
- 230000001413 cellular effect Effects 0.000 claims description 19
- 229920002635 polyurethane Polymers 0.000 claims description 16
- 239000004814 polyurethane Substances 0.000 claims description 16
- 229920000620 organic polymer Polymers 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 7
- 241000244423 Pteris cretica Species 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 241001517997 Polypodium glycyrrhiza Species 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 241001453830 Pteridium Species 0.000 claims description 5
- 241000091944 Pteris biaurita Species 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 241000258920 Chilopoda Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 76
- 238000005516 engineering process Methods 0.000 description 8
- 241000051984 Blepharidachne Species 0.000 description 7
- 241000223782 Ciliophora Species 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052785 arsenic Inorganic materials 0.000 description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005067 remediation Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- FGIWMSAVEQNPPQ-UHFFFAOYSA-N arsenic;hydrate Chemical compound O.[As] FGIWMSAVEQNPPQ-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- -1 fixes it Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mycology (AREA)
- Soil Sciences (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of heavy metal pollution place disposal system, is designed mainly for repairing contaminated by heavy metals place, including the accommodating hole for accommodating contaminated soil and the plant life disposal layer of absorption heavy metal-polluted soil；The accommodating hole bottom is provided with impervious barrier, and the sidepiece in the accommodating hole is disposed with first filter layer and adsorption layer from inside to outside.The present invention is by the impervious barrier in accommodating hole bottom, and the infiltration of surrounding activated carbon is adsorbed and planted raw disposal layer and is combined, and harm of the contaminated site to surrounding environment is avoided to greatest extent；Base impervious layer infiltration coefficient is less than 10‑10Cm/s, can prevent soil permeability liquid from polluting lower soil and underground water；Surrounding activated carbon infiltration adsorption layer can adsorb heavy metal available state in soil penetrating fluid, it is to avoid the pollution to surrounding environment；Generating layer is planted, airborne dust can be prevented and treated and cause atmosphere pollution, environment can be afforested and beautified again, while plant can be enriched with the heavy metal in contaminated soil.
Description
Technical field
The present invention relates to a kind of heavy metal pollution place disposal system and method.
Background technology
Heavy-metal contaminated soil reparation, which refers to, utilizes physics, chemistry and biological method transfer, absorption, degraded and conversion soil
In heavy metal, its concentration or risk of toxicity is reduced to acceptable level, meet the requirement of corresponding land use pattern.Weight
Metallic prosthetic can be divided into two kinds from governance way, and a kind of is the existing forms for changing heavy metal in soil, fixes it, drops
Its low migration and bioavailability in the environment；Another is that removing heavy metals are removed from soil, it is retained concentration and connects
It is near or reach heavy metal-polluted soil background value or standard.Can be divided into from Treatment process peripheral doses technology, chemical remediation technology,
Physical chemistry recovery technique and phytoremediation technology.Some technologies (such as electro reclamation) are transported due to lacking complete funds with engineering
Row parameter, it is not long in the practical application time that contaminated site repairs field, can't be expanded；Some technologies (such as vitrifying and
Thermal desorption technology) influenceed to use without being widely popularized by certain due to operating cost, technical sophistication degree.
At present, conventional heavy metal pollution recovery technique has：Obstruct landfill, curing/stabilizing, phytoremediation, soil clear
Wash with mercury contaminated soil Thermal desorption etc..These technologies are all to realize that contaminated soil is administered in a short time, thus quantities is big, administer into
This height, is the bottleneck problem that current contaminated site soil remediation industry faces.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of heavy metal pollution that can eliminate contaminated site to the harm of surrounding environment
Place disposal system and method.
To reach above-mentioned purpose, a kind of heavy metal pollution place disposal system of the invention, including soil is contaminated for accommodating
The accommodating hole of earth and the plant life disposal layer for adsorbing heavy metal-polluted soil；The accommodating hole bottom is provided with impervious barrier, described accommodating
The sidepiece in hole is disposed with first filter layer and adsorption layer from inside to outside；The openend in the accommodating hole is provided with.
Further, the impervious barrier is mixed by EVA or polyurethane water soluble organic polymer with soil, described anti-
The thickness range of infiltration layer is 1-5cm.
Further, the adsorption layer is cellular activated carbon composite, the hole count of the cellular activated carbon composite
Scope is 100-250 holes/square inch；The thickness range of the cellular activated carbon composite is 50-200mm.
Further, the material of the first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh, mesh
Mesh number scope is 50-200 mesh.
Further, the raw disposal layer of the plant includes the vegetation being planted in contaminated soil and is arranged on contaminated soil table
The consolidation growth-promoting layer in face；The thickness range of the consolidation growth-promoting layer is 1-5cm.
Further, the consolidation growth-promoting layer is mixed by EVA or polyurethane water soluble organic polymer with soil, institute
The thickness range for stating consolidation growth-promoting layer is 1-5cm.
Further, the vegetation include ciliate desert-grass, cretan brake, the licorice fern that comes into leaves, Pteris biaurita L and, Ryukyu
Any one or a few in brake fern；The planting density scope of the vegetation is -40 plants/square metres of 30 plant/square metre.
To reach above-mentioned purpose, a kind of heavy metal pollution place method of disposal of the invention, methods described comprises the following steps：
First, contaminated soil is dug out to form an accommodating hole；
2nd, the accommodating hole bottom spraying seepage prevention material in step one, impervious barrier is formed after infiltration, solidification；
3rd, to outer laying first filter layer and adsorption layer successively in having on the side wall in accommodating hole；
4th, filling out contaminated soil can house in hole；
5th, vegetation is planted in the contaminated soil in step 4, and is formed to the top layer spraying cementing material of contaminated soil
Consolidate growth-promoting layer.
Further, impervious material is EVA or polyurethane in the step 2, and spraying concentration scope is 8-20%.
Further, the thickness range of the impervious barrier is 1-5cm.
Further, the absorption layer material is cellular activated carbon composite；The cellular activated carbon composite by
Activated carbon, clay and adhesive material mix according to predetermined ratio, is calcined and is made.
Further, the cellular activated carbon composite hole count is 100-250 holes/square inch, thickness 50-
200mm。
Further, the material of the first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh, mesh
Mesh number scope is 50-200 mesh.
Further, the cementing material of step 6 spraying is water soluble organic polymer, including EVA or polyurethane；
The concentration range of sprinkling is 3-5%；It is 1-5cm to consolidate growth-promoting thickness degree.
The present invention is by the impervious barrier in accommodating hole bottom, and the infiltration of surrounding activated carbon is adsorbed and planted generating layer and is combined, maximum
Limit avoids harm of the contaminated site to surrounding environment；Base impervious layer infiltration coefficient is less than 10-10Cm/s, can prevent soil
Earth penetrating fluid is polluted to lower soil and underground water；Surrounding activated carbon infiltration adsorption layer can adsorb weight in soil penetrating fluid
Metal available state, it is to avoid the pollution to surrounding environment；Generating layer is planted, airborne dust can be prevented and treated and cause atmosphere pollution, can be afforested and beautified again
Environment, while plant can be enriched with the heavy metal in contaminated soil.
Brief description of the drawings
Fig. 1 is heavy metal pollution place disposal system schematic diagram of the present invention；
Fig. 2 is heavy metal pollution place disposal system base impervious of the present invention layer schematic diagram；
Fig. 3 is that heavy metal pollution place disposal system activated carbon of the present invention permeates adsorption layer front schematic view；
Fig. 4 is that heavy metal pollution place disposal system activated carbon of the present invention permeates adsorption layer side schematic view；
Fig. 5 is disposal system active carbon module cell schematics in heavy metal pollution place of the present invention；
Fig. 6 is that heavy metal pollution place of the present invention disposal system plants raw disposal layer schematic diagram.
In figure：1st, impervious barrier；2nd, activated carbon infiltration adsorption layer；3rd, raw disposal layer is planted；4th, soil particle；5th, macromolecule is consolidated
Body；6th, active carbon module unit；7th, first filter layer；8th, duct；9th, activated carbon skeleton；10th, soil consolidation growth-promoting layer；11st, heavy metal
Enriching plant；
Embodiment
With reference to Figure of description, the present invention will be further described.
Embodiment 1
With reference to Fig. 1, Fig. 2 and Fig. 6, a kind of heavy metal pollution place disposal system of the invention, including for accommodating contaminated
The accommodating hole of soil and the plant life disposal layer 3 for adsorbing heavy metal-polluted soil；The accommodating hole bottom is provided with antiseepage, 1, the appearance
The sidepiece for putting hole is disposed with first filter layer 7 and adsorption layer 2 from inside to outside.
As the concrete scheme of embodiment 1, with reference to Fig. 2, the impervious barrier is by EVA or polyurethane water soluble organic polymer
Mixed with soil, soil particle 4 is consolidated into macromolecular solid knot body 5, and the thickness range of the impervious barrier is 1-5cm.
With reference to Fig. 3, adsorption layer 2 is cellular activated carbon composite including some active carbon module units 6, the honeycomb
The hole count scope of absorbent charcoal composite material is 100-250 holes/square inch；The thickness range of the cellular activated carbon composite
For 50-200mm.
Specifically, the material of the first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh 8, mesh
Mesh number scope is 50-200 mesh.
Specifically, the raw disposal layer of plant includes the vegetation being planted in contaminated soil and is arranged on contaminated soil surface
Consolidation growth-promoting layer；The thickness range of the consolidation growth-promoting layer is 1-5cm.
Specifically, the consolidation growth-promoting layer 10 is mixed by EVA or polyurethane water soluble organic polymer with soil, institute
The thickness range for stating consolidation growth-promoting layer is 1-5cm.
The vegetation 11 include ciliate desert-grass, cretan brake, the licorice fern that comes into leaves, Pteris biaurita L and, Ryukyu's brake fern
In any one or a few；The planting density of the vegetation is 36 plants/square metre, wherein the spacing of adjacent two plants of vegetation is
20cm。
Soil permeability liquid is prevented to pollute lower soil and underground water by oozing impervious barrier in the present embodiment, by setting
Heavy metal available state in soil penetrating fluid can be adsorbed by putting adsorption layer, it is to avoid pollution of the contaminated soil to surrounding environment；It is logical to set
Top layer consolidation plants generating layer, can prevent and treat airborne dust and cause atmosphere pollution, environment can be afforested and beautified again, while plant can be enriched with pollution
Heavy metal in soil；
Embodiment 2
As the concrete scheme of embodiment 1, the impervious barrier is mixed by EVA or polyurethane water soluble organic polymer with soil
Conjunction is formed, and the thickness of the impervious barrier is 1cm；The impervious barrier is specially to apply impervious material to the spraying of hole bottom for EVA or poly- ammonia
Ester is formed, and spray concentration is 3-5%；If spraying concentration is less than 3%, consolidation effect is bad, low intensity；Concentration is more than 5%, then
Induration hardness is excessive, is unfavorable for plant growth.
Adsorption layer is cellular activated carbon composite, the hole count scope of the cellular activated carbon composite for 100 holes/
Square inch；The thickness of the cellular activated carbon composite is 50mm.Wherein, if hole count is less than 100 holes/square inch,
Kong Tai great, one side intensity can be reduced, and on the other hand infiltration is accelerated, and is unfavorable for heavy metal adsorption；Hole count be more than 250 holes/square
Inch, then Kong Tai little, easily blocks, and poor permeability.
The material of first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh, and mesh mesh number is 50 mesh；Its
If in mesh mesh number be less than 50 mesh, initial filter effect is bad, and cellular activated carbon composite easily blocks, and mesh mesh number is more than 200
Mesh, then resistance increase, influences osmotic effect.
The raw disposal layer of plant includes the vegetation being planted in contaminated soil and the consolidation growth-promoting for being arranged on contaminated soil surface
Layer；The thickness of the consolidation growth-promoting layer is 1cm.It is EVA that the consolidation growth-promoting layer specially sprays cementing material to upper soll layer
Form, spray concentration is 3-5%；If spraying concentration is less than 3%, consolidation effect is bad, low intensity；Concentration is more than 5%, then solid
Knot body hardness is excessive, is unfavorable for plant growth.
Vegetation includes ciliate desert-grass, cretan brake, the licorice fern that comes into leaves, Pteris biaurita L and Ryukyu's brake fern；It is described to plant
The planting density scope of quilt is -40 plants/every square metre of 30 plant/square metre.
Embodiment 3
As the concrete scheme of embodiment 1, the impervious barrier is mixed by EVA or polyurethane water soluble organic polymer with soil
Conjunction is formed, and the thickness of the impervious barrier is 5cm；
Adsorption layer is cellular activated carbon composite, the hole count of the cellular activated carbon composite for 175 holes/square
Inch；The thickness of the cellular activated carbon composite is 125mm.
The material of first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh, and mesh mesh number is 125 mesh.
The raw disposal layer of plant includes the vegetation being planted in contaminated soil and the consolidation growth-promoting for being arranged on contaminated soil surface
Layer；The thickness of the consolidation growth-promoting layer is 3cm.
The consolidation growth-promoting layer is mixed by EVA or polyurethane water soluble organic polymer with soil, and the consolidation promotees
The thickness of generating layer is 3cm.
Vegetation is ciliate desert-grass；Wherein the planting density scope of vegetation is 36 plants/square metre, wherein between adjacent two plants of vegetation
Away from for 20cm.
Embodiment 4
As the concrete scheme of embodiment 1, the impervious barrier is mixed by EVA or polyurethane water soluble organic polymer with soil
Conjunction is formed, and the thickness of the impervious barrier is 3cm；
Adsorption layer is cellular activated carbon composite, the hole count of the cellular activated carbon composite for 250 holes/square
Inch；The thickness of the cellular activated carbon composite is 200mm.
The material of first filter layer is PE, PP or nylon；The first filter layer is provided with filter mesh, and mesh mesh number is 200 mesh.
The raw disposal layer of plant includes the vegetation being planted in contaminated soil and the consolidation growth-promoting for being arranged on contaminated soil surface
Layer；The thickness of the consolidation growth-promoting layer is 5cm.
The consolidation growth-promoting layer is mixed by EVA or polyurethane water soluble organic polymer with soil, and the consolidation promotees
The thickness of generating layer is 5cm.
Vegetation includes ciliate desert-grass, cretan brake and Ryukyu's brake fern；The planting density scope of the vegetation be 40 plants/
Every square metre；
Embodiment 5
A kind of heavy metal pollution place of the invention method of disposal, methods described comprises the following steps：
First, contaminated soil is dug out to form an accommodating hole；
2nd, the accommodating hole bottom spraying seepage prevention material in step one, impervious barrier is formed after infiltration, solidification；
3rd, to outer laying first filter layer and adsorption layer successively in having on the side wall in accommodating hole；
4th, filling out contaminated soil can house in hole；
5th, vegetation is planted in the contaminated soil in step 4, and is formed to the top layer spraying cementing material of contaminated soil
Consolidate growth-promoting layer.
Embodiment 6
With reference to Fig. 1 to Fig. 6, as the concrete scheme of embodiment 5, arsenic pollution place is disposed in the present embodiment, its
Contaminated area is 200m2(20m*10m)；Pollution depth is 5.5m；Method of disposal is as follows：Contaminated site is excavated first, digs deep
3m, bottom sprays 15% concentration hydrophilic polyurethane, quantity for spray 5L/m at excavation2, penetrate into soil, and be solidified into high score
Sub- induration 5, consolidated soil particle 4 does impervious barrier 1, impervious barrier thickness 3.1cm.After after soil consolidation desiccation in one week, then opening
Cave surrounding laying active carbon module unit 6 of digging pit builds absorbent charcoal composite material infiltration adsorption layer 2, activated carbon infiltration absorption thickness
Spend for 10cm, hole count is 180 holes/square inch, and one layer of first filter layer 7 spread outside infiltration adsorption layer, mesh mesh number is 100 mesh,
Prevent soil particle from blocking activated carbon infiltration adsorption layer duct 8；Original soil is finally filled out into go back to original place, a ground surface plantation huge sum of money on the scene again
Belong to accumulation ability strong ciliate desert-grass, cretan brake and the licorice fern 11 that comes into leaves, planting density is 20cm*20cm.Spray 4% dense
The hydrophilic polyurethane of degree, quantity for spray is 3L/m2, topsoil is consolidated, soil consolidation growth-promoting layer 10 is formed, consolidates growth-promoting thickness
Spend for 1.3cm.
Soil sample arsenic (As) test in contaminated site, the results are shown in Table 1 before and after being administered in the present embodiment；Polluted before and after administering
Soil sampling and sampling of ground water arsenic (As) test around place, as a result as shown in table 2.
The present embodiment is additionally provided with a comparative example, comparative example to be disposed to pollution level identical arsenic pollution place,
Its contaminated area is 200m2(20m*10m)；Pollution depth is 5.5m；Method of disposal is as follows：Contaminated site is excavated first, dug
Deep 3m, bentonite is laid in bottom at excavation, re-lays geomembrane and builds impervious barrier, impervious barrier thickness is 3cm, then original soil is filled out
Original place is gone back to, ground surface plantation heavy metal accumulation ability on the scene strong ciliate desert-grass, cretan brake and the licorice fern that comes into leaves are planted close
Spend for 30 plants/square metre.
Soil sample arsenic (As) test in contaminated site, the results are shown in Table 1 before and after administering；Taken before and after administering around contaminated site
Soil sample and sampling of ground water arsenic (As) test, as a result as shown in table 2.
The unit of table 1：mg/L
| Before processing | After processing after 6 months | |
| Embodiment 6 | 0.32 | 0.01 |
| Comparative example | 0.32 | 0.28 |
Note：Soil is extracted using sulfonitric method (HJ/T299-2007).
The unit of table 2：mg/L
Note：Soil is extracted using sulfonitric method (HJ/T299-2007).
By comparative example 6 and comparative example, the system by the present invention disposes heavy metal pollution place can be fast
Speed effectively prevents harm of the contaminated site to surrounding environment, while cost of disposal is low, there is afforestation effect again.And comparative example is used
It is anti-to blend the effect that barrier very well and reduction soil remediation are not played in planting plants measure.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (10)
1. a kind of heavy metal pollution place disposal system, it is characterised in that including the accommodating hole for accommodating contaminated soil with
And the plant life disposal layer of absorption heavy metal-polluted soil；The accommodating hole bottom is provided with impervious barrier, and the sidepiece in the accommodating hole is by interior
To being disposed with first filter layer and adsorption layer outside.
2. heavy metal pollution place according to claim 1 disposal system, it is characterised in that the impervious barrier by EVA or
Polyurethane water soluble organic polymer is mixed with soil, and the thickness range of the impervious barrier is 1-5cm.
3. heavy metal pollution place according to claim 1 disposal system, it is characterised in that the adsorption layer is lived for honeycomb
Property carbon composite, the hole count scope of the cellular activated carbon composite is 100-250 holes/square inch；The honeycomb is lived
Property carbon composite thickness range be 50-200mm.
4. heavy metal pollution place according to claim 1 disposal system, it is characterised in that the material of the first filter layer is
PE, PP or nylon；The first filter layer is provided with filter mesh, and mesh mesh number scope is 50-200 mesh.
5. heavy metal pollution place according to claim 1 disposal system, it is characterised in that the plant life disposal layer includes
The vegetation that is planted in contaminated soil and the consolidation growth-promoting layer for being arranged on contaminated soil surface；The thickness of the consolidation growth-promoting layer
Scope is 1-5cm.
6. heavy metal pollution place according to claim 5 disposal system, it is characterised in that the consolidation growth-promoting layer by
EVA or polyurethane water soluble organic polymer are mixed with soil, and the thickness range of the consolidation growth-promoting layer is 1-5cm.
7. heavy metal pollution place according to claim 5 disposal system, it is characterised in that the vegetation includes centipede
Any one or a few in grass, cretan brake, the licorice fern that comes into leaves, Pteris biaurita L and Ryukyu's brake fern；The vegetation
Planting density scope be -40 plants/square metres of 30 plant/square metre.
8. a kind of heavy metal pollution place method of disposal, it is characterised in that methods described comprises the following steps：
First, contaminated soil is dug out to form an accommodating hole；
2nd, the accommodating hole bottom spraying seepage prevention material in step one, impervious barrier is formed after infiltration, solidification；
3rd, to outer laying first filter layer and adsorption layer successively in having on the side wall in accommodating hole；
4th, contaminated soil is filled out back in accommodating hole；
5th, vegetation is planted in the contaminated soil in step 4, and is consolidated to the top layer spraying cementing material formation of contaminated soil
Growth-promoting layer.
9. contaminated site method of disposal according to claim 8, it is characterised in that impervious material is in the step 2
EVA or polyurethane, spraying concentration scope are 8-20%.
10. heavy metal pollution place according to claim 8 method of disposal, it is characterised in that the thickness of the impervious barrier
Scope is 1-5cm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408818A (en) * | 2018-03-27 | 2018-08-17 | 中国科学院武汉岩土力学研究所 | A kind of industrial pollution area building substrate contamination object separation purifying system |
| CN109092888A (en) * | 2018-08-22 | 2018-12-28 | 山西华欣久泰科技有限公司 | A kind of mixing restorative procedure of heavy-metal contaminated soil |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136795A (en) * | 2007-12-07 | 2009-06-25 | Sophia Co Ltd | Composite material, method for producing the same, adsorption material, purification equipment, and method for purifying contaminated water |
| CN101972630A (en) * | 2010-11-12 | 2011-02-16 | 丽水市禾子净化设备有限公司 | Manufacturing method of honeycomb type purification activated carbon |
| CN202356397U (en) * | 2011-10-20 | 2012-08-01 | 杨哲 | Anti-seepage device for preventing soil pollution |
| CN102652480A (en) * | 2012-04-26 | 2012-09-05 | 北京北林绿源生态技术研究院有限责任公司 | Vegetation recovery method for acid metal mine solid waste stock dump |
| CN103817145A (en) * | 2014-03-07 | 2014-05-28 | 深圳市万信达生态环境股份有限公司 | Method for treating farmland soil polluted by cadmium |
| CN103821153A (en) * | 2014-01-10 | 2014-05-28 | 东南大学 | Arsenic sandstone slope treating method |
| CN104475433A (en) * | 2014-11-19 | 2015-04-01 | 湖南广义科技有限公司 | Harmless control and resource recovery method of lands polluted by heavy metals |
| CN204550288U (en) * | 2015-04-17 | 2015-08-12 | 三峡大学 | A kind of soil ecology treatment unit |
| WO2016028136A1 (en) * | 2014-08-22 | 2016-02-25 | Universiti Malaysia Sabah | Waste storage landfill cell |
| CN105598144A (en) * | 2016-03-22 | 2016-05-25 | 安徽工程大学 | Restoration method of polluted soil |
| CN106064178A (en) * | 2016-06-02 | 2016-11-02 | 东莞市环境科学研究所 | A kind of method for safely planting in heavy metal pollution farmland |
| CN106623401A (en) * | 2016-12-05 | 2017-05-10 | 上海绿强新材料有限公司 | Method for repairing heavy metal polluted soil based on permeation absorption wall |
| CN207103407U (en) * | 2017-06-30 | 2018-03-16 | 中冶华天工程技术有限公司 | Heavy metal pollution place disposal system |
-
2017
- 2017-06-30 CN CN201710530077.3A patent/CN107159692A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136795A (en) * | 2007-12-07 | 2009-06-25 | Sophia Co Ltd | Composite material, method for producing the same, adsorption material, purification equipment, and method for purifying contaminated water |
| CN101972630A (en) * | 2010-11-12 | 2011-02-16 | 丽水市禾子净化设备有限公司 | Manufacturing method of honeycomb type purification activated carbon |
| CN202356397U (en) * | 2011-10-20 | 2012-08-01 | 杨哲 | Anti-seepage device for preventing soil pollution |
| CN102652480A (en) * | 2012-04-26 | 2012-09-05 | 北京北林绿源生态技术研究院有限责任公司 | Vegetation recovery method for acid metal mine solid waste stock dump |
| CN103821153A (en) * | 2014-01-10 | 2014-05-28 | 东南大学 | Arsenic sandstone slope treating method |
| CN103817145A (en) * | 2014-03-07 | 2014-05-28 | 深圳市万信达生态环境股份有限公司 | Method for treating farmland soil polluted by cadmium |
| WO2016028136A1 (en) * | 2014-08-22 | 2016-02-25 | Universiti Malaysia Sabah | Waste storage landfill cell |
| CN104475433A (en) * | 2014-11-19 | 2015-04-01 | 湖南广义科技有限公司 | Harmless control and resource recovery method of lands polluted by heavy metals |
| CN204550288U (en) * | 2015-04-17 | 2015-08-12 | 三峡大学 | A kind of soil ecology treatment unit |
| CN105598144A (en) * | 2016-03-22 | 2016-05-25 | 安徽工程大学 | Restoration method of polluted soil |
| CN106064178A (en) * | 2016-06-02 | 2016-11-02 | 东莞市环境科学研究所 | A kind of method for safely planting in heavy metal pollution farmland |
| CN106623401A (en) * | 2016-12-05 | 2017-05-10 | 上海绿强新材料有限公司 | Method for repairing heavy metal polluted soil based on permeation absorption wall |
| CN207103407U (en) * | 2017-06-30 | 2018-03-16 | 中冶华天工程技术有限公司 | Heavy metal pollution place disposal system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408818A (en) * | 2018-03-27 | 2018-08-17 | 中国科学院武汉岩土力学研究所 | A kind of industrial pollution area building substrate contamination object separation purifying system |
| CN108408818B (en) * | 2018-03-27 | 2024-03-29 | 中国科学院武汉岩土力学研究所 | Industrial pollution area building substrate pollutant isolation and purification system |
| CN109092888A (en) * | 2018-08-22 | 2018-12-28 | 山西华欣久泰科技有限公司 | A kind of mixing restorative procedure of heavy-metal contaminated soil |
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Application publication date: 20170915 |