CN107838183A - A kind of method for repairing antimony pollution soil - Google Patents
A kind of method for repairing antimony pollution soil Download PDFInfo
- Publication number
- CN107838183A CN107838183A CN201711035492.8A CN201711035492A CN107838183A CN 107838183 A CN107838183 A CN 107838183A CN 201711035492 A CN201711035492 A CN 201711035492A CN 107838183 A CN107838183 A CN 107838183A
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- Prior art keywords
- antimony
- soil
- pollution soil
- repairing
- activator
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Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The present invention relates to a kind of method for repairing antimony pollution soil, antimony activator is applied in antimony pollution soil by elder generation, water, which is ploughed, to be mixed, keep 13 centimetres of waterlogging, ready to balance plants brake fern when topsoil still moistens after 37 days, keep warm in whole growth course, moisten, without being persistently exposed to the sun, pouring antimony activator solution within 10 15 days before harvest, behind most vigorous 10 15 days of plant growth, aboveground vegetation part is removed and carries out harmless treatment；Whether the content of heavy metal in soil antimony is up to standard after detection is repaired, if below standard, the plantation of the white jade brake fern of next group is carried out by the above method, untill up to standard.By adding activator into soil, migration and accumulation of the antimony in soil to aboveground vegetation part can not only be effectively facilitated, and soil environment and the condition needed for plant growth can also be improved, realizes the purpose of phytoremediation antimony pollution soil；Also have the advantages that repairing effect is good, rehabilitation cost is low and environmental risk is small.
Description
Technical field
The present invention relates to a kind of method for repairing antimony pollution soil, more particularly to a kind of activator to combine with enriching plant and repaiies
The method of multiple antimony pollution soil, belong to heavy-metal contaminated soil and repair field.
Background technology
For antimony as a kind of pollution element, the high content antimony in environment necessarily affects the normal of endemic plant especially crops
Growth and its yield, it is exceeded to also result in agricultural product antimony content, then by food chain in people's cylinder accumulation.Antimony has been found
A kind of poisonous carcinogenic elements, the metabolism of vivo protein and sugar can be disturbed, moreover it is possible to damage liver by being combined with sulfydryl in human body
Dirty, heart and nervous system, stimulation is produced to mucous membrane.Sent out when investigating 609 Xikuangshan Antimony Deposit In Hunan area workers
Existing, 20.03% worker has suffered from pneumoconiosis；Antimony content is up to 15.9mg.kg in the mining area locality human hair-1.In Guizhou Province Guizhou Province
Many chronic antimony poisoning patients are have also discovered in the southern long-term resident for living in Near Antimony Mine Area in area.Although current national soil environment
Quality standard is not to the limit value of antimony, but antimony pollution has polluted crops and endangered the health of contaminated area resident.
Therefore, it has been extremely urgent to solve soil antimony pollution environmental problem.
At present, the recovery technique of soil antimony pollution is few, is broadly divided into physics and chemistry repairing method and phytoremediation, wherein physics and chemistry
Repairing method mainly includes soil moved in improve the original, soil removal and replacement, electro reclamation, chemical leaching and chemosetting etc., but these physical chemistry recovery techniques
Not only cost is high, takes effect slow but also easily produces secondary pollution, larger to the environmental destruction of soil, therefore is applied to repair
Earth backing earth antimony pollution problem is not permanent skill.Phytoremediation technology is that certain or some huge sum of moneys are resistant to and accumulated based on plant
Based on the ability for belonging to element, by being harvested after plant absorption heavy metal, and dealt carefully with, you can by the heavy metal
Soil is removed, reaches a kind of environmental pollution treatment technology of the purpose of pollution control and restoration of the ecosystem.Phytoremediation due to its
Administer on soil antimony pollution that cost of investment is low, repairing effect is good and non-secondary pollution so that it becomes ability region soil with much money
Belong to the study hotspot and emphasis repaired.And enriching plant is then the research emphasis of phytoremediation, although enriching plant heavy metal
With good enrichment, but because the features such as its biomass is low, and repairing efficiency is long causes applying for phytoremediation technology
Limitation to a certain extent.
Therefore work out a kind of biomass of repairing effect that can improve plant plant of and can increase simultaneously, reduce plant
The method in the cycle of reparation is just particularly important.
The content of the invention
In view of the shortcomings of the prior art, combine it is an object of the invention to provide a kind of activator with enriching plant and repair antimony
The method of contaminated soil, give full play to the effect of activator activating soil antimony, it is intended to improve antimony to enriching plant biological effectiveness
The problems such as, and then the concentration effect of plant is improved, it is that a kind of rehabilitation cost is low, repairing effect is good and the soil weight of non-secondary pollution
The restorative procedure of metallic antimony.
In order to solve the above-mentioned technical problem, technical scheme is as follows：A kind of method for repairing antimony pollution soil, bag
Include following steps：
S1, apply antimony activator in antimony pollution soil, water, which is ploughed, to be mixed, and keeps 1-3 centimetres of waterlogging, ready to balance 3-7
Brake fern is planted when topsoil still moistens after it, keeps warm growing environment, moistening, nothing to continue in whole growing process sudden and violent
Shine, then behind 10-15 days that brake fern grows most animated period, harvest brake fern and carry out harmless treatment；
Whether S2, the content of detection heavy metal in soil antimony after step S1 reparations are up to standard, if below standard, according to step
S1 method carries out the plantation of the brake fern of next group, untill Antimony In The Soils content is up to standard.
When whether the content of the heavy metal in soil antimony after detection is repaired in step S2 is up to standard, referring especially to local soil antimony
Background values are carried out, if detecting, the heavy metal in soil antimony content after repairing reaches local soil antimony background values,
It is up to standard；It is not up to standard if being higher by local soil antimony background values.
Local soil antimony background value refer to it is local not by mankind's pollution effect Antimony In The Soils element content.
By into soil add antimony activator, lifted soil in antimony activity, promote soil in antimony to plant
The migration and accumulation of upper part, the condition needed for improvement soil environment and plant growth, realize phytoremediation antimony pollution soil
Purpose.
Preferably, antimony activator is pulvis.
The antimony activator is calcium carbonate.
Antimony activator can improve activity of the heavy metal in soil, promote accumulation of the heavy metal-polluted soil in plant.
CaCO3It is strong to the activation capacity of Antimony In The Soils, and a kind of natural minerals product is used as, there is safe and reliable, low raw-material cost
The advantages that.
The water that is applied to of the antimony activator is ploughed before measure, and the applied amount of antimony activator is 0.5-1.5 tons/mu, preferably
For 1.25 tons/mu.
In order to supplement or strengthen enrichment of the white jade brake fern to antimony, before brake fern harvest 10-15 days to antimony pollution soil
Pour antimony activator solution.
Preferably, the antimony activator solution is unsaturated carbonate calcium solution.
The brake fern is white jade brake fern.
Enriching plant of the white jade brake fern as antimony, using spore seed propagation, ripe spore uniform broadcasting is being sterilized
Matrix on, then connect basin and immerse among shallow water, be sufficiently humidified so as to basin soil, cover glass is placed in shady and cool canopy above basin, keeps 20-25
DEG C, grow sporophyll within 60 days or so.
In step S1, using outdoor planting, periodically watering, ground moistening is kept, soil moisture content is maintained at field and holds
The 70-80% of water.
In step S1, harvest brake fern refers mainly to remove the aerial part of brake fern.
The aerial part that phoenix tail is fainted refers mainly to phoenix tail and fainted the parts such as the stem exposed on ground, leaf.
In step S1, harmless treatment includes burning, gas cleaning, the lime-ash solidification of brake fern, landfill step.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) present invention has cost of investment using plant soil restoration antimony pollution compared to other physical chemistry repairing methods
Low, the advantages that repairing effect is good, simple to operate, non-secondary pollution.
(2) the antimony activator CaCO that the present invention uses3Have that activation effect is good to the antimony in soil, and raw material is simply easy
The characteristics of obtaining.
(3) present invention is by using application CaCO3Method, given full play to CaCO3Effect, add biomass, carry
High Sb enriching quantities, the production cycle is shortened, while reduce the heavy metal element such as Cd, Pb, Cu that may be present in soil
Biological effectiveness, the comprehensive toxic action for reducing heavy metal on plants.
Brief description of the drawings
Fig. 1 is the influence that different activator additions handle to antimony content in plant in the embodiment of the present invention 1.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
This pot experiment region is located in the laboratory that applicant builds, and laboratory location belongs to subtropical zone monsoon
Moist climate, make a clear distinction between the four seasons, be about with sufficient sunshine-duration and rainwater, more 17.5 DEG C of average temperatures of the whole year, annual rainfall
1200 millimeters, year sunshine total hour be about 2000 hours, frost-free period in year is about 240 days or so.This pot experiment soil picks up from
Paddy field topsoil soils (0-20 centimetres) near Hunan Province's antimony mining, ore dressing, soil types belong to red soil, soil natural
After air-drying, the plant remained in soil and chad, ground 10 mesh nylon mesh are removed, measuring its basic physical and chemical is：PH value
For 5.21, organic matter 26.32g/kg, full phosphorus is 0.71g/kg, and full nitrogen is 2.87g/kg, and full antimony is 632.24mg/kg.
White jade brake fern uses division propagation, and the big container made of bamboo, wicker, ratten, etc. of white jade brake fern in a upper season is transplanted after plant division, per 3 plants of basin, and
Apply a certain amount of Chemical Mixed Fertilizer simultaneously, the n-p-k element concentration in being manured into soil is 100mg/kg, 80mg/kg and 100mg/
kg。
Being fitted into for examination soil in basin for 10 mesh sieves will be spent, 2kg soil is loaded per basin.The cool place of culture environment is kept, simultaneously
Potted plant moisturizing often is given regarding water shortage status, ensure the 70%-90% that the moisture content in potted plant is field capacity.
After plant maturation, its aerial part and under ground portion are sampled respectively, adopt the plant sample running water returned
Clean up, then cleaned with deionized water.Plant sample is dried, finish 30min at 105 DEG C, is dried at a temperature of 70 DEG C
Constant weight, claim its weight, pulverization process is being carried out to plant, pack is to be measured.
Below in conjunction with instantiation, the invention will be further described.
Embodiment 1
Middle saturation CaCO is applied respectively within 10 days before plant harvest to potted plant3Water, and control experiment is carried out with blank group, often
Group experiment is repeated 3 times.
1 different CaCO of table3Influence under concentration processing to aboveground vegetation part biomass and plant heavy metal antimony content
As it can be seen from table 1 compared with blank group, to potted plant middle a certain amount of CaCO of addition3Plant can significantly be changed
The biomass of thing aerial part, the content of aboveground vegetation part antimony and aboveground vegetation part antimony uptake and remediation efficiency.Wherein
Add the CaCO of 1.25 tons/mu3It is optimal to the repairing effect of soil antimony, add the CaCO of 1.5 tons/mu3Plant aboveground can be improved
Partial antimony content, but the biomass of plant can be reduced, so as to slightly reduce remediation efficiency of the plant to soil antimony.
Embodiment 2
Middle a quarter saturation CaCO is applied respectively within 15 days before plant harvest to potted plant3Water, and carried out pair with blank group
According to the facts test, every group of experiment is repeated 3 times.
2 different CaCO of table3Influence under concentration processing to aboveground vegetation part biomass and plant heavy metal antimony content
From table 2 it can be seen that compared with blank group, to potted plant middle a certain amount of CaCO of addition3Plant can significantly be changed
The biomass of thing aerial part, the content of aboveground vegetation part antimony and aboveground vegetation part antimony uptake and remediation efficiency.Wherein
Add the CaCO of 1.25 tons/mu3It is optimal to the repairing effect of soil antimony, add the CaCO of 1.5 tons/mu3Plant aboveground can be improved
Partial antimony content, but the biomass of plant can be reduced, so as to slightly reduce remediation efficiency of the plant to soil antimony.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the present invention, after the present invention has been read, the various equivalent form of values of the those skilled in the art to the present invention
Modification each fall within the application appended claims limited range.
Claims (9)
- A kind of 1. method for repairing antimony pollution soil, it is characterised in that comprise the following steps：S1, apply antimony activator in antimony pollution soil, water, which is ploughed, to be mixed, and keeps 1-3 centimetres of waterlogging, ready to balance is after 3-7 days Brake fern is planted when topsoil still moistens, keeps warm growing environment, moistening, nothing to be persistently exposed to the sun in whole growing process, Then behind 10-15 days that brake fern grows most animated period, harvest brake fern and carry out harmless treatment；Whether S2, the content of detection heavy metal in soil antimony after step S1 reparations are up to standard, if below standard, according to step S1's Method carries out the plantation of the brake fern of next group, untill Antimony In The Soils content is up to standard.
- 2. the method according to claim 1 for repairing antimony pollution soil, it is characterised in that the antimony activator is carbonic acid Calcium.
- 3. the method according to claim 1 for repairing antimony pollution soil, it is characterised in that the antimony activator is applied to Water is ploughed before measure, and the applied amount of antimony activator is 0.5-1.5 tons/mu.
- 4. the method according to claim 1 for repairing antimony pollution soil, it is characterised in that the 10-15 before brake fern harvest It pours antimony activator solution to antimony pollution soil.
- 5. the method according to claim 4 for repairing antimony pollution soil, it is characterised in that the antimony activator solution is full And calcium carbonate soln.
- 6. the method according to claim 1 for repairing antimony pollution soil, it is characterised in that the brake fern is white jade phoenix tail Fern.
- 7. the method according to claim 1 for repairing antimony pollution soil, it is characterised in that in step S1, using outdoor cultivation Training, periodically watering, keeps ground moistening, soil moisture content is maintained at the 70-80% of field capacity.
- 8. the method for the reparation antimony pollution soil according to claim any one of 1-7, it is characterised in that in step S1, receive Brake fern is obtained to refer mainly to remove the aerial part of brake fern.
- 9. the method for the reparation antimony pollution soil according to claim any one of 1-7, it is characterised in that in step S1, nothing Evilization processing includes burning, gas cleaning, the lime-ash solidification of brake fern, landfill step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035492.8A CN107838183B (en) | 2017-10-30 | 2017-10-30 | Method for repairing antimony-polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711035492.8A CN107838183B (en) | 2017-10-30 | 2017-10-30 | Method for repairing antimony-polluted soil |
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| CN107838183A true CN107838183A (en) | 2018-03-27 |
| CN107838183B CN107838183B (en) | 2020-08-07 |
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| CN201711035492.8A Active CN107838183B (en) | 2017-10-30 | 2017-10-30 | Method for repairing antimony-polluted soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746170A (en) * | 2018-07-31 | 2018-11-06 | 杭州绿风生态环境建设集团有限公司 | A kind of method of pteridophyte restoration of soil polluted by heavy metal |
| CN111804727A (en) * | 2020-06-29 | 2020-10-23 | 北京泷涛环境修复有限公司 | Method for treating antimony-polluted soil |
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| CN111804727A (en) * | 2020-06-29 | 2020-10-23 | 北京泷涛环境修复有限公司 | Method for treating antimony-polluted soil |
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| CN107838183B (en) | 2020-08-07 |
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Effective date of registration: 20220614 Address after: 410329 Liuyang National Biomedical Industrial Base, Changsha City, Hunan Province (beside National Highway 319) Patentee after: YONKER ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 410330 the 319 National Road of Liuyang National Economic Development Zone, Changsha, Hunan. Patentee before: Hunan Yonker Environmental Protection Research Institute Co.,Ltd. |
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