CN109628105A - Heavy-metal contaminated soil renovation agent - Google Patents
Heavy-metal contaminated soil renovation agent Download PDFInfo
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- CN109628105A CN109628105A CN201811573296.0A CN201811573296A CN109628105A CN 109628105 A CN109628105 A CN 109628105A CN 201811573296 A CN201811573296 A CN 201811573296A CN 109628105 A CN109628105 A CN 109628105A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
The invention belongs to the technical fields of soil remediation, specifically disclose heavy-metal contaminated soil renovation agent, including the first renovation agent, 60-75 parts of soil, 1-8 parts of nitrogenous fertilizer, 15-35 parts of kaolin, 5-15 parts of plant ash；First renovation agent further includes natural zeolite, and several holes are offered on natural zeolite, are filled with the water suction spherolite for having water imbibition in each hole, are attached with Rhodopseudomonas palustris, Rhodospirillum rubrum and magnetotactic spirillum on the spherolite that absorbs water；Second renovation agent, the second renovation agent include bacillus cereus liquid, colloid bacillus cereus liquid, bacillus megaterium liquid and citric acid bacillus liquid；Third renovation agent, third renovation agent include bacillus mycoides liquid, Shewanella liquid, P. aeruginosa bacterium solution and white-rot fungi liquid；4th renovation agent, the 4th renovation agent include nitrogenous fertilizer, phosphate fertilizer, muck.This programme solves the problems, such as that existing recovery technique can cause secondary pollution to soil.
Description
Technical field
The invention belongs to the technical fields of soil remediation, specifically disclose heavy-metal contaminated soil renovation agent.
Background technique
China is one of heavy metal mining area big in the world, is dispersed with a large amount of high-quality heavy metal mining area.For a long time, exist
In the recovery process of heavy metal mineral reserve, place of the exploitation enterprise to wastes such as waste residue, sewage, the tailings generated during exploitation
It manages not in place or even untreated, waste residue, sewage etc. is caused to be directly discharged in river or be deposited in earth's surface.Waste residue,
Content of beary metal in sewage is very high, and the content of beary metal in soil is caused to steeply rise, meanwhile, heavy metal is difficult to degrade,
The restoring force for only leaning on soil itself, needs the century-old time just soil restoration can be made to normal state.A huge sum of money in soil
Belong to too high levels, easily leads to the crops that the microorganism in soil is dead, cultivates and also contain the further contaminant water of heavy metal, soil
Source and air；If human or animal has eaten the crop of heavy metal soil tilth, heavy metal can also be entered in human or animal's body,
Serious influence is caused on the health of human or animal.
Existing soil restoring technology is generally used the modes such as metal adsorption, solidification, and heavy metal adsorption is concentrated or made
Heavy metal reaction generates the high compound of stability, but a large amount of chemistry examination must be just put into soil using which
Agent, these chemical reagent may cause secondary pollution to soil, generate more serious destruction to soil.
Summary of the invention
The purpose of the present invention is to provide heavy-metal contaminated soil renovation agents, can be to soil to solve existing recovery technique
The problem of causing secondary pollution.
In order to achieve the above object, base case of the invention are as follows:
Heavy-metal contaminated soil renovation agent,
Including the first renovation agent, first renovation agent includes parts by weight meter, 60-75 parts of soil, 1-8 parts of nitrogenous fertilizer, height
Soil 15-35 parts of ridge, 5-15 parts of plant ash；First renovation agent further includes natural zeolite, offers several holes on the natural zeolite
Hole, filled with the water suction spherolite for having water imbibition in each described hole, be attached on the water suction spherolite marsh it is red it is false singly
Born of the same parents bacterium, Rhodospirillum rubrum and magnetotactic spirillum；
It further include the second renovation agent, second renovation agent includes bacillus cereus liquid, colloid bacillus cereus liquid, huge
Bacillus liquid and citric acid bacillus liquid；
It further include third renovation agent, the third renovation agent includes bacillus mycoides liquid, Shewanella liquid, the false list of verdigris
Born of the same parents' bacterium solution and white-rot fungi liquid；
It further include the 4th renovation agent, the 4th renovation agent includes nitrogenous fertilizer, phosphate fertilizer, muck.
The working principle of this base case is: being adsorbed, is swallowed using zeolite, kaolin and all kinds of microbial bacterial liquid
Heavy metal, to achieve the purpose that rehabilitating soil.
The beneficial effect of this base case is:
1, being added in this programme has soil, subsequent containing enough microorganisms, nutrient etc. in unpolluted soil
When planting plant, plant can from soil draw nutrient；Meanwhile the concentration of heavy metal ion in contaminated soil is high, and not
The concentration of heavy metal ion polluted in soil is low, and after the two mixing, heavy metal ion enters in uncontaminated soil in which will be slow,
To reduce the concentration of metal ions in contaminated soil, the indigenous microorganisms in soil is enable to survive.
2, Cadium In Polluted Soil metal can make the part microorganism in soil dead, and the part microorganism can be soil
The nutriment of nitrogen is provided, so the high soil of cadmium metal content extremely lacks nitrogen, nitrogenous fertilizer is added in this programme to guarantee
Nitrogen content in soil guarantees that plant can absorb in the soil nitrogen and survive.
3, being added in this programme has kaolin and plant ash, and kaolin and plant ash can absorb the heavy metal in water, lead
Cause the content of beary metal in entire soil higher, still, after kaolin and plant ash absorption heavy metal, heavy metal will not be in water
The lower part for quickly sinking, even sinking to underground water of effect, avoids heavy metal and has an impact to underground water.The prior art
In, there is using the method for Soil leaching the content of beary metal for reducing soil, although its effect is good, in fact, heavy metal
It is gradually to deposit downward under the action of water, causes the pollution of lower soil quite serious, meanwhile, over time, weight
Metal continues to sink, and finally influences whether the water quality of underground water.
4, it joined zeolite in this programme, zeolite has the function of adsorbing heavy metal ion, can be effectively reduced soil
Interior content of beary metal.It is provided with hole on zeolite in this programme, water suction spherolite is filled in hole, water suction spherolite can absorb greatly
Moisture is measured, absorbs and is attached with Rhodopseudomonas palustris, Rhodospirillum rubrum and magnetotactic spirillum on spherolite；Firstly, water suction spherolite can
Large quantity of moisture is absorbed, provides the environment of growth for microorganism, meanwhile, zeolite surface has a large amount of gap, these gaps also can be
Microorganism provides growing environment keeps microorganism fast so zeolite can carry a large amount of microorganisms before placing into the soil
Fast ground is proliferated in the soil.Meanwhile the Rhodopseudomonas palustris of this programme selection, Rhodospirillum rubrum are solution of photosynthetic bacteria,
Necessary nutrient can be provided for plant growth, meanwhile, Rhodopseudomonas palustris also has the function of removing cadmium metal.
5, the second renovation agent in this programme has the function of stronger absorption cadmium metal, efficiently reduces cadmium gold in soil
The content of category.
6, the third renovation agent in this programme has the function of stronger absorption lead zinc metal, efficiently reduces lead in soil
The content of zinc metal.
7, the 4th renovation agent in this programme can enhance the fertility of soil, provide nutrient for plant.
8, the first renovation agent, the second renovation agent, third renovation agent and the 4th renovation agent are fabricated separately in this programme, are had
The effect of cadmium, lead zinc metal in substep removal soil.
Further, the water suction spherolite for cotton or plucks mist cotton.Using this programme, the good water absorption of cotton is cheap；
Plucking mist cotton is emerging product in recent years, and water sorption with super strength can grow for microorganism and provide a large amount of moisture, but
Its price is more expensive, and user can select according to economic budget.Mist cotton is plucked from periodical " Advanced materials "
The 8th phase paper of page 1149 of volume 25 in 2013, thesis topic are " Temperature-Triggered Collection
and Release of Water from Fogs by a Sponge-Like Cotton Fabric》。
Further, the component and proportion of second renovation agent are as follows: based on parts by weight, 1-4 parts of bacillus cereus liquid,
2-3 parts of colloid bacillus cereus liquid, 2-3 parts of bacillus megaterium liquid and 2-5 parts of citric acid bacillus liquid.It is repaired using this programme, second
The effect of multiple agent removal cadmium metal is best.
Further, the component and proportion of the third renovation agent are as follows: based on parts by weight, 1-5 parts of bacillus mycoides liquid,
5-10 parts of Shewanella liquid, 4-11 parts of P. aeruginosa bacterium solution and 6-13 parts of white-rot fungi liquid.Using this programme, third renovation agent
The effect for removing lead zinc is best.
Soil remediation method, comprising the following steps:
S1: soil is loosened, and is screened out the part metals waste residue in soil using the mode of magnetic separation；
S2: the first renovation agent is put into soil, and natural zeolite is embedded in the depths soil 0.1m-1m；
After S3:15-45 days, the second renovation agent is put into soil, then after 15-45 days, short plant is planted on soil；
Cape jasmine, sophora flower, rose, madder or safflower；
S4: after blooming twice or thrice, by slow growth, bloom less, the plant of withered death is rooted out completely, and plant
For making industrial natural dye；
S5: loosening soil again, and the second renovation agent is put into soil, after 15-45 days, by withered, dead plant
It roots out completely and is used to make industrial natural dye, then plant vetiver or false indigo, after blooming once or twice, will grow
Slowly, it blooms less, the plant of withered death is rooted out completely and is used to make industrial natural dye；
S6: loosening soil again, and third renovation agent is put into soil, after 15-45 days, withered, dead plant is complete
It roots out entirely and is used to make industrial natural dye, then plant Chinese sumac.
The working principle and beneficial effect of this programme are:
1, in S1, soil is loosened, it, can also be by bulk therein while loosening soil convenient for launching the first renovation agent
Metal waste residue screens out, and is reduced as far as polluting, and metal waste residue is all deposited in earth's surface, and it is useless that deep soil does not have metal substantially
Slag, so it is fabulous to screen out waste residue effect in this step.
2, in S2, the first renovation agent is put into soil, and be embedded to natural zeolite.Three kinds of huge sum of moneys of cadmium, lead, zinc in soil
Belong to, cadmium metal can generate greatly adverse effect to the microorganism of the script in soil, lead to most microorganism death, make
, plant barren at soil nutrient can not be planted.First put into this programme the first renovation agent effect be improve soil fertility, by
Gradually restore the microbial survival environment in soil, absorbs heavy metal simultaneously, lays foundation for the plantation of plant.
3, in S3, the second renovation agent is put into soil, the second renovation agent can play the work of good removal cadmium metal
With.After removing cadmium metal, the photosynthetic microorganism in soil can quickly be proliferated growth, provide fertility for soil.Meanwhile we
The plants such as cape jasmine, the sophora flower planted in case belong to dye yielding herb, and leaf, flower, root etc. can be used in making natural dye, can
Economic value is enough generated, the cost of entire recovery project is reduced.Meanwhile cadmium metal belongs to not easily settled one of heavy metal,
The speed deposited downwards with dampening is very slow, and most of cadmium metal is all in upper layer of soil.The plants such as cape jasmine, sophora flower belong to short
The plant of plant, the depth that very fast, rhizome of growth etc. gos deep into soil is shallower, and rhizome part can only be absorbed from upper layer of soil
Nutrient, thus this kind of plant absorb cadmium metal effect it is best, and cadmium metal be distributed in plant floral leaf part it is more, work as floral leaf
Part is for after making dyestuff, cadmium metal just to be separated from soil completely.
4, in S4, the bad production of growing state is rooted out, the cadmium metal that this kind of plant absorbs is more or malnutritive, will
It can plant new plant after rooting out, accelerate plant and absorb the efficiency of cadmium metal, while also avoid its rear cadmium metal weight that rots
Return soil.Meanwhile the plant planted in this programme is only used for process industry dyestuff, industrial dye will not enter people's substantially
In food chain, it is avoided to adversely affect people.
5, in S5, putting into the second renovation agent again can be improved the efficiency that microorganism absorbs cadmium metal；False indigo is planted, it is purple
The plant such as fringe Chinese scholartree and cape jasmine are different, and it is more that the plant such as cape jasmine absorb cadmium metal, and to absorb lead zinc metal more for false indigo, at this time cadmium
The content of metal has been greatly lowered, so needing to carry out the processing of lead zinc metal, while false indigo can also further inhale
Cadmium metal is received, in the hope of completely removing cadmium metal.
6, in S6, Chinese sumac is planted.In this step, the content of cadmium metal tails off in soil, the microbial population in soil
Be gradually recovered, nutrient becomes more, can provide enough growing environments into xylophyta, but lead zinc metal is more, it is still desirable to
Carry out purified treatment.For Rhus in xylophyta, root growth is deeper, can absorb lead zinc gold in middle layer or lower soil
Belong to, meanwhile, the floral leaf of Chinese sumac, which can be used in dyestuff is made, brings economic value.
Further, S2 is into S6, after planting plant, monthly launches into soil the 4th renovation agent 2-3 time, and every month is to soil
It waters 4-8 times in earth.During soil remediation, irrigation amount is reduced to the greatest extent, and heavy metal is avoided to settle with dampening to deep subsoil.
Further, in S6, after loosening soil, natural zeolite is cleaned up from soil.Zeolite can absorb heavy metal,
A large amount of microorganisms on zeolite also absorb many heavy metals, focus on after being cleaned up, and can efficiently reduce soil
Content of beary metal in earth.
Specific embodiment
It is further described below by specific embodiment:
Embodiment one:
One heavy metal species soil-repairing agent:
Including the first renovation agent, the first renovation agent includes soil 6kg, nitrogenous fertilizer 0.1kg, kaolin 15kg, plant ash 0.5kg
And natural zeolite, several holes are offered on natural zeolite, and cotton has been filled in hole, has been attached with marsh on hole and cotton
Red pseudomonas, Rhodospirillum rubrum and magnetotactic spirillum；
It further include the second renovation agent, the second renovation agent includes bacillus cereus liquid 1kg, colloid bacillus cereus liquid 2kg, huge
Bacterium anthracoides liquid 2kg and citric acid bacillus liquid 2kg；
It further include third renovation agent, third renovation agent includes bacillus mycoides liquid 1kg, Shewanella liquid 5kg, verdigris vacation
Unit cell bacterium solution 4kg and white-rot fungi liquid 6kg；
It further include the 4th renovation agent, the 4th renovation agent includes nitrogenous fertilizer 0.25kg and phosphate fertilizer 1.1kg.
Soil remediation method, comprising the following steps:
S1: soil is loosened, and is screened out the part metals waste residue in soil using the mode of magnetic separation；
S2: the first renovation agent is put into soil, the first renovation agent input amount is every square metre of 3.5kg, and will naturally be boiled
Stone is embedded in the depths soil 0.75m, and the input amount of natural zeolite is 20 pieces every square metre；
After S3:35 days, the second renovation agent is put into soil, the second renovation agent input amount is every square metre of 2.5kg, then every
After 35 days, cape jasmine is planted on soil, the plantation density of cape jasmine is line-spacing 1m；
S4: after blooming twice, by slow growth, bloom less, the plant of withered death is rooted out completely, and plant is for making
Make industrial natural dye；
S5: loosening soil again, and the second renovation agent is put into soil, and the input amount of the second renovation agent is every square metre
0.8kg after 30 day, withered, dead plant is rooted out completely and is used to make industrial natural dye, then plants vetiver, fragrant
The Planting Row Distance of root grass be 0.1m, after once blooming, by slow growth, bloom less, the plant of withered death is rooted out simultaneously completely
For making industrial natural dye；
S6: loosening soil again, and natural zeolite is cleaned up from soil, and third renovation agent is put into soil, the
The input amount of three renovation agents is every square metre of 3.2kg, after 30 days, withered, dead plant is rooted out completely and is used to make work
Industry natural dye, then plant Chinese sumac.
Wherein, it after S2 kind plants cape jasmine, monthly waters into soil and launches the 4th renovation agent, the dispensing of the 4th renovation agent
Amount is every square metre of 0.8kg, and irrigation amount is monthly 6 times.
Embodiment two:
Embodiment two and the difference of embodiment one are only that:
One heavy metal species soil-repairing agent:
Including the first renovation agent, the first renovation agent includes soil 7.5kg, nitrogenous fertilizer 0.8kg, kaolin 35kg, plant ash
1.5kg and natural zeolite offer several holes on natural zeolite, cotton have been filled in hole, has been adhered on hole and cotton
There are Rhodopseudomonas palustris, Rhodospirillum rubrum and magnetotactic spirillum；
It further include the second renovation agent, the second renovation agent includes bacillus cereus liquid 4kg, colloid bacillus cereus liquid 3kg, huge
Bacterium anthracoides liquid 3kg and citric acid bacillus liquid 5kg；
It further include third renovation agent, third renovation agent includes bacillus mycoides liquid 5kg, Shewanella liquid 10kg, verdigris
Pseudomonad liquid 11kg and white-rot fungi liquid 13kg；
It further include the 4th renovation agent, the 4th renovation agent includes nitrogenous fertilizer 0.25kg and phosphate fertilizer 1.1kg.
Embodiment three:
Embodiment three and the difference of embodiment one are only that:
One heavy metal species soil-repairing agent:
Including the first renovation agent, the first renovation agent includes soil 6.8kg, nitrogenous fertilizer 0.5kg, kaolin 28kg, plant ash 1kg
And natural zeolite, several holes are offered on natural zeolite, and cotton has been filled in hole, has been attached with marsh on hole and cotton
Red pseudomonas, Rhodospirillum rubrum and magnetotactic spirillum；
Further include the second renovation agent, the second renovation agent include bacillus cereus liquid 2kg, colloid bacillus cereus liquid 2.5kg,
Bacillus megaterium liquid 2.5kg and citric acid bacillus liquid 3kg；
It further include third renovation agent, third renovation agent includes bacillus mycoides liquid 3kg, Shewanella liquid 7kg, verdigris vacation
Unit cell bacterium solution 8kg and white-rot fungi liquid 8.5kg；
It further include the 4th renovation agent, the 4th renovation agent includes nitrogenous fertilizer 0.25kg and phosphate fertilizer 1.1kg.
Experimental example:
Four pieces of experimental plots of 10m*10m are opened up on contaminated soil, wherein respectively according to implementation in three pieces of experimental plots
Method in example one, two, three carries out soil remediation, plants cape jasmine, vetiver and Chinese sumac in last block experimental plot.
Second of florescence cape jasmine, florescence first time vetiver and First Year Chinese sumac in embodiment one, two, three are collected respectively
Blade as experimental group 1, experimental group 2 and experimental group 3；Cape jasmine, vetiver and Chinese sumac in last block experimental plot is received
Collect to get up group as a comparison.
Using graphite furnace atomic absorption spectrometry respectively to experimental group 1, experimental group 2, experimental group 3 and contrast groups carry out cadmium,
The content detection of lead, zinc, then its survival rate and most short survival number of days are calculated, it is as a result as follows:
Conclusion:
One, experimental group 3, i.e., carry out soil remediation in the way of embodiment three, and the heavy metal amount that plant absorbs is obviously few
In other three groups, illustrate that microbial treatment situation is preferable, while the survival rate of plant also highest, most short survival number of days longest, soil
The case where earth, is best；
Two, in experimental group 1 and experimental group 2, the content of beary metal that plant absorbs is considerably less than contrast groups, the survival rate of plant
Also above contrast groups, most short survival number of days also above contrast groups, the soil regime of the two is also just better than contrast groups；
Three, contrast groups plant absorb content of beary metal it is very high, and n plant survival rate 30% hereinafter, most short survival day
Number is 7,11 and 25, and the time-to-live is extremely short, and soil regime is worst.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.
Claims (7)
1. heavy-metal contaminated soil renovation agent, it is characterised in that:
Including the first renovation agent, first renovation agent includes parts by weight meter, 60-75 parts of soil, 1-8 parts of nitrogenous fertilizer, kaolin
15-35 parts, 5-15 parts of plant ash；First renovation agent further includes natural zeolite, several holes is offered on the natural zeolite, often
Filled with having the water suction spherolite of water imbibition in a described hole, be attached on the water suction spherolite Rhodopseudomonas palustris,
Rhodospirillum rubrum and magnetotactic spirillum；
It further include the second renovation agent, second renovation agent includes bacillus cereus liquid, colloid bacillus cereus liquid, huge gemma
Bacillus liquid and citric acid bacillus liquid；
It further include third renovation agent, the third renovation agent includes bacillus mycoides liquid, Shewanella liquid, pseudomonas aeruginosa
Liquid and white-rot fungi liquid；
It further include the 4th renovation agent, the 4th renovation agent includes nitrogenous fertilizer, phosphate fertilizer, muck.
2. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that: the water suction spherolite be cotton or
Pluck mist cotton.
3. heavy-metal contaminated soil renovation agent according to claim 2, it is characterised in that: the component of second renovation agent
And proportion are as follows: based on parts by weight, 1-4 parts of bacillus cereus liquid, 2-3 parts of colloid bacillus cereus liquid, bacillus megaterium liquid
2-3 parts and 2-5 parts of citric acid bacillus liquid.
4. heavy-metal contaminated soil renovation agent according to claim 3, it is characterised in that: the component of the third renovation agent
And proportion are as follows: based on parts by weight, 1-5 parts of bacillus mycoides liquid, 5-10 parts of Shewanella liquid, P. aeruginosa bacterium solution 4-11
Part and 6-13 parts of white-rot fungi liquid.
5. using the soil remediation method of the heavy-metal contaminated soil renovation agent of any of claims 1-4, feature
It is: the following steps are included:
S1: soil is loosened, and is screened out the part metals waste residue in soil using the mode of magnetic separation；
S2: the first renovation agent is put into soil, and natural zeolite is embedded in the depths soil 0.1m-1m；
After S3:15-45 days, the second renovation agent is put into soil, then after 15-45 days, short plant: Cape jasmine is planted on soil
Son, sophora flower, rose, madder or safflower；
S4: twice or thrice after the florescence, by slow growth, bloom less, the plant of withered death is rooted out completely, and plant is used for
Make industrial natural dye；
S5: loosening soil again, and the second renovation agent is put into soil, after 15-45 days, withered, dead plant is complete
It roots out and is used to make industrial natural dye, then plant vetiver or false indigo, it is after blooming once or twice, growth is slow
Slowly, bloom less, the plant of withered death is rooted out completely and is used to make industrial natural dye；
S6: loosening soil again, and third renovation agent is put into soil, and after 15-45 days, withered, dead plant is shoveled completely
It removes and is used to make industrial natural dye, then plant Chinese sumac.
6. soil remediation method according to claim 5, it is characterised in that: S2 is into S6, after planting plant, monthly to soil
Dispensing the 4th renovation agent 2-3 times in earth, every month waters 4-8 times into soil.
7. soil remediation method according to claim 6, it is characterised in that: in S6, loosen soil after, by natural zeolite from
It is cleaned up in soil.
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Cited By (4)
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| CN112170475A (en) * | 2020-09-08 | 2021-01-05 | 吉林省林业科学研究院 | Heavy metal contaminated soil remediation agent and remediation method |
| CN112552923A (en) * | 2020-11-23 | 2021-03-26 | 贵州欧瑞欣合环保股份有限公司 | Soil repairing agent and repairing method |
| CN113714274A (en) * | 2020-05-24 | 2021-11-30 | 中国环境科学研究院 | Plunger pump for microorganism soil layer dispersion mixing inoculation |
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| CN112552923A (en) * | 2020-11-23 | 2021-03-26 | 贵州欧瑞欣合环保股份有限公司 | Soil repairing agent and repairing method |
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