CN102806227A - Method of restoring soil polluted by heavy metal - Google Patents
Method of restoring soil polluted by heavy metal Download PDFInfo
- Publication number
- CN102806227A CN102806227A CN2011101510385A CN201110151038A CN102806227A CN 102806227 A CN102806227 A CN 102806227A CN 2011101510385 A CN2011101510385 A CN 2011101510385A CN 201110151038 A CN201110151038 A CN 201110151038A CN 102806227 A CN102806227 A CN 102806227A
- Authority
- CN
- China
- Prior art keywords
- soil
- grass
- ciliate desert
- arsenic
- heavy metal
- 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.)
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- 239000002689 soil Substances 0.000 title claims abstract description 52
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 15
- 241000051984 Blepharidachne Species 0.000 claims abstract description 46
- 241000223782 Ciliophora Species 0.000 claims abstract description 46
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 32
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 238000005213 imbibition Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000035784 germination Effects 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005067 remediation Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000018109 developmental process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to remediation of heavy metal pollution in the environment, in particular to a method of restoring soil polluted by heavy metal, which belongs to the field of environmental pollution remediation. The method is characterized in that a root system of ciliate desert-grass is used for absorbing arsenic from the soil, the arsenic from the soil is stored in leaves to ensure that the content of arsenic in the leaves of the ciliate desert-grass reaches 0.5-0.8 %, the leaves of the ciliate desert-grass are removed periodically, the underground part is reserved, and arsenic transportation and transfer can be performed continuously, so that the purpose of lowering the content of arsenic in the soil is achieved. The method has the benefits that the method is low in cost and high in restoring efficiency, simplifies the soil restoring procedure and is suitable for popularization and application; the harvested leaves are subjected to safe landfill or incineration concentratedly; no secondary pollution is generated; the diversity of soil organisms is restored and improved; a new plant resource variety is developed for a plant for restoring the soil polluted by the heavy metal; and a new advancement and development space is brought to the deep development of a plant restoring technology.
Description
Technical field
The present invention relates to the reparation of heavy metal pollution in a kind of environment, belong to environmental pollution and recover the field, a kind of specifically reparation receives the method for heavy-metal contaminated soil.
Background technology
Pollutant is to be accompanied by the development of human being's production life activity and to produce, accumulate; Heavy metal Hg, lead, pot, chromium, arsenic etc.; Mainly be in industrial processes such as mining, ore dressing, smelting, forging, processing, transportation; With waste gas, waste water, waste sludge discharge, make heavy metal concentration in the environment thousands of in addition tens thousand of times to background values.
Particularly serious is, after heavy metal gets into open environment, can change valence state and between each medium shuttling movement, extremely difficultly from open environment, disappear, form permanent pollution to environment.Certainly, under certain condition, certain heavy metal species can be subdued to the level near background values in certain medium, but this must make this metal in other media, form more serious pollution.
The high concentration heavy metal that exists in the contaminated environment produces multiple influence to the physiological activity of the biology beginning, makes some biological disease even death take place, and makes finally that ecosystem balance is destroyed, the deterioration of the ecological environment.Ciliate desert-grass can effectively be administered the heavy metal pollution problem in the soil, and administering the most effective way of soil issues at present still is the phytoremediation method.That is to say the plant that receives to plant in the serious soil of heavy metal pollution those ability strong absorption heavy metals at some; Research proof pteridophyte ciliate desert-grass has very strong ultra enrichment function to arsenic, and its blade arsenic content is up to 8 ‰.Ciliate desert-grass can absorb the arsenic in the soil through root system, deposits them in the blade then.If people in the ground, plant in oneself garden or in the whole sub-district of living and go up a certain amount of ciliate desert-grass, can beautify the environment on the one hand, can remove the heavy metal hidden danger in the soil on the other hand again.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, solve the problem of the plant variety inadequate resource of prior art heavy metal pollution of soil biological restoration, the method that provides a kind of reparation to receive heavy-metal contaminated soil is to reduce the heavy metal in soil pollutant load.
A kind of reparation of the present invention receives the method for heavy-metal contaminated soil; It is characterized in that: utilized ciliate desert-grass to absorb the arsenic in the soil, then the arsenic in the soil has been deposited in the blade, made that arsenic content reaches 5～8 ‰ in the ciliate desert-grass blade through root system; And regularly extract the ciliate desert-grass blade; The reservation lower part then can continue transportation and transhipment arsenic, to reach the purpose that reduces heavy metal in soil arsenic content.
A kind of reparation of the present invention receives the method for heavy-metal contaminated soil, and its practical implementation step is:
A. with the imbibition 3 hours in pure water of ciliate desert-grass seed; The temperature of opening in dark place is 25～30 ℃ of germinations in 3 days; Again with growing seedlings in its greenhouse; Temperature is that 25～26 ℃, humidity are 60～70%, light intensity is 240～245Lux, and 2 true leaves were grown in illumination every day in 16～18 hours, will grow to the ciliate desert-grass of 2～3 true leaves of tool and transplant;
B. adopt the direct transplanting mode, under the natural conditions ciliate desert-grass is planted in the soil of heavy metal pollution, keep 75% field capacity; The every kilogram of soil that applies fertilizer is executed nitrogen 0.30g, phosphorus 0.20g, potassium 0.30g, and liming is regulated pH to 6～7, line-spacing 7～10cm; Spacing in the rows 5～20cm; 4～6 months ciliate desert-grass well-growns of growing are regularly extractd the ciliate desert-grass blade, the reservation lower part; Make ciliate desert-grass continue growth, continue to transport and transport arsenic, to reduce the content of heavy metal in soil arsenic;
C. regularly extract the ciliate desert-grass blade 2～3 times/year; Let the sustainable growth of ciliate desert-grass; Continue to extract the ciliate desert-grass blade, reach the limited range of local environmental requirement, the ciliate desert-grass blade of regularly extracing is carried out Unified Treatment up to the content of heavy metal in soil arsenic; Landfill or burning in the place of safety are to avoid the secondary pollution of heavy metal to soil.
Ciliate desert-grass is effectively administered the heavy metal pollution problem in the soil, and it absorbs the heavy metal arsenic in the soil through root system, deposits them in the blade then.
A kind of reparation of the present invention receives the method for heavy-metal contaminated soil, and its beneficial effect is: easy, the robust growth of ciliate desert-grass cultivation, and low level management just can reach good growth result; Can the heavy metal of accumulating in the soil be absorbed, and it is transported to aerial part, but enriching heavy metal arsenic is applied to the heavy metal arsenic in the plant extract contaminated soil, cost is low, remediation efficiency is high and the characteristics of perennation, is suitable for phytoremediation; Lasting transportation of the present invention and transhipment arsenic arrive in the ciliate desert-grass blade, to reach the problem of heavy metal pollution in the rehabilitating soil, have simplified the program of rehabilitating soil, are suitable for applying; The blade of being gathered in the crops is concentrated security landfill or burning, can not cause secondary pollution, improves soil because of soil degradation and the productivity that heavy metal pollution causes descends, and recovers and raising geobiont diversity; For receiving the rehabilitation plant of heavy metal pollution, soil developed new plant resource variety simultaneously, for the deep development of phytoremediation technology has brought new progress and development space.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is made further detailed description.
Embodiment 1
A. with the imbibition 3 hours in pure water of ciliate desert-grass seed; The temperature of opening in dark place is 30 ℃ germinateed in 3 days, and again with growing seedlings in its greenhouse, temperature is that 25 ℃, humidity are 65%, light intensity is 240Lux; 2 true leaves were grown in illumination every day in 18 hours, will grow to the ciliate desert-grass of 2 true leaves of tool and transplant;
B. adopt the direct transplanting mode, under the natural conditions ciliate desert-grass is planted in the soil of heavy metal pollution, keep 75% field capacity; The every kilogram of soil that applies fertilizer is executed nitrogen 0.30g, phosphorus 0.20g, potassium 0.30g, and liming is regulated pH to 6, line-spacing 7cm; Spacing in the rows 15cm; 5 months ciliate desert-grass well-growns of growing are regularly extractd the ciliate desert-grass blade, the reservation lower part; Make ciliate desert-grass continue growth, continue to transport and transport arsenic, to reduce the content of heavy metal in soil arsenic;
C. regularly extract the ciliate desert-grass blade 2 times/year; Let the sustainable growth of ciliate desert-grass; Continue to extract the ciliate desert-grass blade, reach the limited range of local environmental requirement, the ciliate desert-grass blade of regularly extracing is carried out Unified Treatment up to the content of heavy metal in soil arsenic; Landfill or burning in the place of safety are to avoid the secondary pollution of heavy metal to soil.
Claims (2)
1. a reparation receives the method for heavy-metal contaminated soil; It is characterized in that: utilized ciliate desert-grass to absorb the arsenic in the soil, then the arsenic in the soil has been deposited in the blade, made that arsenic content reaches 5～8 ‰ in the ciliate desert-grass blade through root system; And regularly extract the ciliate desert-grass blade; The reservation lower part then can continue transportation and transhipment arsenic, to reach the purpose that reduces heavy metal in soil arsenic content.
2. a kind of according to claim 1 reparation receives the method for heavy-metal contaminated soil, it is characterized in that: the practical implementation step is:
A. with the imbibition 3 hours in pure water of ciliate desert-grass seed; The temperature of opening in dark place is 25～30 ℃ of germinations in 3 days; Again with growing seedlings in its greenhouse; Temperature is that 25～26 ℃, humidity are 60～70%, light intensity is 240～245Lux, and 2 true leaves were grown in illumination every day in 16～18 hours, will grow to the ciliate desert-grass of 2～3 true leaves of tool and transplant;
B. adopt the direct transplanting mode, under the natural conditions ciliate desert-grass is planted in the soil of heavy metal pollution, keep 75% field capacity; The every kilogram of soil that applies fertilizer is executed nitrogen 0.30g, phosphorus 0.20g, potassium 0.30g, and liming is regulated pH to 6～7, line-spacing 7～10cm; Spacing in the rows 5～20cm; 4～6 months ciliate desert-grass well-growns of growing are regularly extractd the ciliate desert-grass blade, the reservation lower part; Make ciliate desert-grass continue growth, continue to transport and transport arsenic, to reduce the content of heavy metal in soil arsenic;
C. regularly extract the ciliate desert-grass blade 2～3 times/year; Let the sustainable growth of ciliate desert-grass; Continue to extract the ciliate desert-grass blade, reach the limited range of local environmental requirement, the ciliate desert-grass blade of regularly extracing is carried out Unified Treatment up to the content of heavy metal in soil arsenic; Landfill or burning in the place of safety are to avoid the secondary pollution of heavy metal to soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101510385A CN102806227A (en) | 2011-06-01 | 2011-06-01 | Method of restoring soil polluted by heavy metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101510385A CN102806227A (en) | 2011-06-01 | 2011-06-01 | Method of restoring soil polluted by heavy metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102806227A true CN102806227A (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101510385A Pending CN102806227A (en) | 2011-06-01 | 2011-06-01 | Method of restoring soil polluted by heavy metal |
Country Status (1)
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| CN (1) | CN102806227A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071669A (en) * | 2013-01-08 | 2013-05-01 | 华东师范大学 | Method for soil heavy metal pollution remediation through grass family with enrichment capacity |
| CN103272832A (en) * | 2013-04-26 | 2013-09-04 | 浙江工商大学 | Method for reinforced plant remediation of heavy metal-polluted soil |
| CN103406349A (en) * | 2013-08-21 | 2013-11-27 | 广西壮族自治区环境保护科学研究院 | Method for remediating acid/heavy metal lead composite polluted soil by using Pennisetum hydridum |
| CN103817141A (en) * | 2014-02-25 | 2014-05-28 | 四川农业大学 | Application of cleavers in restoration of heavy metal cadmium pollution in farmland soil in winter |
| CN105945042A (en) * | 2016-06-02 | 2016-09-21 | 龚松贵 | Method for removing soil arsenic pollution by interplanting pteris vittata |
| CN106583430A (en) * | 2016-12-09 | 2017-04-26 | 北京高能时代环境技术股份有限公司 | Method for repairing arsenium-polluted farmland soil through microorganisms and plants in combined manner |
| CN107671112A (en) * | 2017-09-11 | 2018-02-09 | 甘肃省地质矿产勘查开发局第三地质矿产勘查院 | Wild plant restoration method for heavy metal contaminated soil |
| CN107855356A (en) * | 2017-10-23 | 2018-03-30 | 汪箭 | Method for soil remediation |
| CN108246798A (en) * | 2017-12-28 | 2018-07-06 | 青岛冠中生态股份有限公司 | Utilize the method for spray seeding technique restoration of soil polluted by heavy metal |
| CN108293550A (en) * | 2017-08-15 | 2018-07-20 | 平南县德湖种养农民专业合作社 | A kind of Novel planting method of podocarpus |
| CN108655172A (en) * | 2018-04-28 | 2018-10-16 | 中国科学院地理科学与资源研究所 | A method of repairing As polluted soil using work between super enriching plant and industrial crops |
| CN108739110A (en) * | 2018-06-01 | 2018-11-06 | 江西绿巨人生态环境股份有限公司 | A kind of soil remediation method |
| CN108889774A (en) * | 2018-09-11 | 2018-11-27 | 通化县金汇生态农业发展有限公司 | A kind of processing method of heavy-metal contaminated soil |
| CN109174959A (en) * | 2018-08-20 | 2019-01-11 | 湖南省农业环境生态研究所 | A kind of ecological restoring method of As polluted soil |
| CN109290347A (en) * | 2018-10-08 | 2019-02-01 | 湖北农谷畅响土壤修复科技股份有限公司 | A method of repairing the soil of arsenic pollution with ciliate desert-grass |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071669B (en) * | 2013-01-08 | 2014-03-05 | 华东师范大学 | Method for remediating heavy metal pollution in soil by enrichment of gramineous plants |
| CN103071669A (en) * | 2013-01-08 | 2013-05-01 | 华东师范大学 | Method for soil heavy metal pollution remediation through grass family with enrichment capacity |
| CN103272832A (en) * | 2013-04-26 | 2013-09-04 | 浙江工商大学 | Method for reinforced plant remediation of heavy metal-polluted soil |
| CN103272832B (en) * | 2013-04-26 | 2015-09-02 | 浙江工商大学 | A kind of method of fortification of plants restoration of soil polluted by heavy metal |
| CN103406349A (en) * | 2013-08-21 | 2013-11-27 | 广西壮族自治区环境保护科学研究院 | Method for remediating acid/heavy metal lead composite polluted soil by using Pennisetum hydridum |
| CN103406349B (en) * | 2013-08-21 | 2015-08-19 | 广西壮族自治区环境保护科学研究院 | Hybrid giant napier is utilized to repair the method for acid and heavy metal lead combined contamination soil |
| CN103817141A (en) * | 2014-02-25 | 2014-05-28 | 四川农业大学 | Application of cleavers in restoration of heavy metal cadmium pollution in farmland soil in winter |
| CN103817141B (en) * | 2014-02-25 | 2015-11-18 | 四川农业大学 | Clearvers repairs the application in farmland soil heavy metals cadmium pollution in the winter time |
| CN105945042A (en) * | 2016-06-02 | 2016-09-21 | 龚松贵 | Method for removing soil arsenic pollution by interplanting pteris vittata |
| CN106583430A (en) * | 2016-12-09 | 2017-04-26 | 北京高能时代环境技术股份有限公司 | Method for repairing arsenium-polluted farmland soil through microorganisms and plants in combined manner |
| CN108293550A (en) * | 2017-08-15 | 2018-07-20 | 平南县德湖种养农民专业合作社 | A kind of Novel planting method of podocarpus |
| CN107671112A (en) * | 2017-09-11 | 2018-02-09 | 甘肃省地质矿产勘查开发局第三地质矿产勘查院 | Wild plant restoration method for heavy metal contaminated soil |
| CN107855356A (en) * | 2017-10-23 | 2018-03-30 | 汪箭 | Method for soil remediation |
| CN107855356B (en) * | 2017-10-23 | 2019-05-03 | 广州穗土环保工程有限公司 | Method for soil remediation |
| CN108246798A (en) * | 2017-12-28 | 2018-07-06 | 青岛冠中生态股份有限公司 | Utilize the method for spray seeding technique restoration of soil polluted by heavy metal |
| CN108655172A (en) * | 2018-04-28 | 2018-10-16 | 中国科学院地理科学与资源研究所 | A method of repairing As polluted soil using work between super enriching plant and industrial crops |
| CN108739110A (en) * | 2018-06-01 | 2018-11-06 | 江西绿巨人生态环境股份有限公司 | A kind of soil remediation method |
| CN109174959A (en) * | 2018-08-20 | 2019-01-11 | 湖南省农业环境生态研究所 | A kind of ecological restoring method of As polluted soil |
| CN108889774A (en) * | 2018-09-11 | 2018-11-27 | 通化县金汇生态农业发展有限公司 | A kind of processing method of heavy-metal contaminated soil |
| CN109290347A (en) * | 2018-10-08 | 2019-02-01 | 湖北农谷畅响土壤修复科技股份有限公司 | A method of repairing the soil of arsenic pollution with ciliate desert-grass |
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Application publication date: 20121205 |