CN102515939A - Method for converting heavy metal-enriched plant into miscellaneous fertilizer containing biological carbon special for mine vegetation recovery - Google Patents
Method for converting heavy metal-enriched plant into miscellaneous fertilizer containing biological carbon special for mine vegetation recovery Download PDFInfo
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- CN102515939A CN102515939A CN2011103812021A CN201110381202A CN102515939A CN 102515939 A CN102515939 A CN 102515939A CN 2011103812021 A CN2011103812021 A CN 2011103812021A CN 201110381202 A CN201110381202 A CN 201110381202A CN 102515939 A CN102515939 A CN 102515939A
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Abstract
The invention relates to a method for converting a heavy metal-enriched plant into a miscellaneous fertilizer containing biological carbon special for mine vegetation recovery, which comprises the following steps of: (1) collecting and drying a straw; (2) collecting a bamboo branch and a bamboo pole, cutting the bamboo pole into a bamboo tube and drying the bamboo branch and the bamboo tube; (3) collecting and drying the heavy metal-enriched plant growing in a mine pollution area; (4) selecting soil on which weeds are grown, shoveling and digging the weeds together with the soil, preparing a blocky turf with soil, and drying; and (5) selecting a patch, bedding the straw and the bamboo branch, covering the bamboo tube on the straw and the bamboo branch, covering the heavy metal-enriched plant on the bamboo tube to pile into a woodpile, covering the turf with the soil on the woodpile, exposing the lower part of the woodpile, igniting the woodpile from the lower part, slowly burning, collecting burned soil and biological carbon after the extinguishment of fire and sieving to prepare the miscellaneous fertilizer containing the biological carbon. The method has the beneficial effects that the heavy metal-enriched plant growing in the mine area is utilized for burning the miscellaneous fertilizer, and the miscellaneous fertilizer is then utilized for improving a mine pollution matrix and promoting the growth of the plant, so that the safe recycling of a phytoremediation harvested product is realized.
Description
Technical field
The present invention relates to environmental pollution control field, particularly relating to a kind of is the special-purpose method that contains the charcoal farmyard manure of recovering plant cover of mine with the enriching heavy metal Plant Transformation.
Background technology
The conventional repair techniques of administering heavy metal contamination mainly comprises engineering, physical technique, chemical technology and physical chemistry technology etc.There is the expense height in conventional repair techniques, can causes Soil structure to destroy and limitations such as fertility is impaired, secondary pollution.The heavy metal-polluted plants reparation is to utilize plant to cut down, purify heavy metal or reduction heavy metal toxicity and minimizing heavy metal transport property in the soil.It is few, effective, easy to operate and be applicable to advantages such as big area reparation that phytoremediation technology possesses expense, can produce good ecology and social benefit.Adopt phytoremediation technology to administer in the heavy metal pollution of soil process, plant can the enrichment plurality of heavy metal.The safe handling of enriching heavy metal plant is the important step that achieve effective control is polluted with utilizing.
Mine heavy metal contamination phytoremediation relates generally to plant extract and fixing two aspects of plant.Plant extract is repaired: plant is absorption of contaminants from environment, and the transhipment pollutent gathers in the plant shoot branch, environment purification to the plant shoot branch.Plant fixed and repaired: utilize Revegetation and base material improvement,, reduce the pollutent biological effectiveness and move moving property, hinder and control Pollutants Diffusion through absorbing, adsorb, accumulate and precipitate passivation and fixed-contamination thing.The mine degenerate region is seriously polluted, and the total amount of pollutant is big, and it is dark to distribute, and it is long to adopt the plant extract recovery technique to purify the required cycle of heavy metal-polluted soil, is difficult in practice carry out.Adopt plant fixed and repaired technology restore vegetation in a short time, stablize the mine ecosystem, reduce soil erosion, effectively resistance control heavy metal diffusion, therefore, adopting plant fixed and repaired technology prevention and control mine pollution is optimal selection.
Mine degenerate region matrix heavy metal content is high, and nutrition is poor, and a little less than the retention ability, most plants are difficult to settle down growth.The degenerate region restore vegetation in the mine needs improvement matrix, increases fertility and retention ability, reduces the biological effectiveness of heavy metal, promotes plant-growth.
Charcoal is one type of height aromatize insoluble solids.Charcoal belongs to a type of black carbon.Charcoal, bamboo charcoal, straw carbon and rice hull carbon etc. are common charcoals.The height aromatize structure of charcoal makes it have higher biological chemistry and thermostability than other any type of organic carbon, but prolonged preservation is in environment and ancient settling and be difficult for by mineralising.Charcoal has that hole prosperity, specific surface area are big, there are characteristics such as a large amount of negative charges and electric density height on the surface, and these characteristics make charcoal have very strong adsorptive power.Charcoal can increase soil pH value, soil nutrient is had certain constraint and holds give over to usefulness, reduces soil nutrient leaching and loss; Increase the silty loam retention ability and reduce the soil erosion; Absorption is heavy metal fixedly, reduces the toxicity of contaminated soil, promotes plant and microorganism growth.
To the safe handling of enriching heavy metal plant in the phytoremediation process with utilize problem; With the Plant Transformation of enriching heavy metal is the farmyard manure that contains charcoal, adds farmyard manure to the mill tailings district, improvement matrix; Promote plant-growth and Revegetation, reduce the diffusion of soil erosion and heavy metal.
Summary of the invention
The purpose of this invention is to provide a kind of is the method that contains the charcoal farmyard manure that is exclusively used in recovering plant cover of mine with the enriching heavy metal Plant Transformation.Utilize the enriching heavy metal plant production that produces in the phytoremediation process to contain the charcoal farmyard manure, with farmyard manure improvement mine pollution matrix, promote Revegetation again, realize polluting the safe utilization of plant.
Technical scheme of the present invention
A kind of is the special-purpose method that contains the charcoal farmyard manure of recovering plant cover of mine with the enriching heavy metal Plant Transformation, may further comprise the steps:
(1) collects straw, dry;
(2) collect bamboo branch and bamboo bar, the bamboo bar is cut into thick bamboo tube, dry bamboo branch and thick bamboo tube;
(3) collect the enriching heavy metal plant that grows in the mine pollution district, dry;
(4) soil of the long weeds of selection is with soil to shovel together weeds and is dug, and processes lump zone soil turf, dries;
(5) select a small area of ground, place mat straw and bamboo branch cover thick bamboo tube on straw and the bamboo branch; Cover the enriching heavy metal plant on the thick bamboo tube, build up rick, cover tape soil turf on the rick with this; The rick bottom is exposed, lights rick from the bottom, smoulder; Fire extinguishes the back and collects these baked wheaten cake soil and charcoals, sieves, and processes to contain the charcoal farmyard manure;
Said enriching heavy metal plant be dyers' grapes (
Phytolacca americana), black nightshade (
Solanum nigrum) and Pinnate Beggarticks (
Bidens maximowicziana) in one or more.
Principle is:The plants such as dyers' grapes, black nightshade and Pinnate Beggarticks of mine pollution district growth can enriching heavy metal.When these enriching heavy metal plants were fired into charcoal, heavy metal was fixed in the charcoal with regard to chelating.
Mine tailing territorial matrix heavy metal content is high, and nutrition is poor, a little less than the retention ability.Charcoal can hinder the control heavy metal and accumulated by plant absorbing, can fetter and hold and stay soil nutrient, reduces nutrient loss, increases mine tailing matrix retention ability; The farmyard manure mineral nutrition is abundant, and pathogeny is biological few.Therefore, add the farmyard manure that is rich in charcoal, can improve mine tailing matrix, promote plant-growth and Revegetation, reduce the diffusion of soil erosion and heavy metal in the mine tailing district.Charcoal stability is strong, is difficult for by mineralising, and the chelating fixed heavy metal can be kept at the mine tailing district with the long-term fixing of charcoal.In addition, the water-soluble heavy metal in the also adsorbable fixedly mine tailing of charcoal prevents that heavy metal from transferring in the water and soil of surrounding area.
Beneficial effect of the present invention:
(1) the enriching heavy metal Plant Transformation becomes charcoal, can prevent these plant litter drifts with the wind, causes the heavy metal diffusion.
When (2) the enriching heavy metal plant was fired into charcoal, heavy metal was fixed in the charcoal with regard to chelating; When adding charcoal to the mine tailing district, the chelating fixed heavy metal can be with the charcoal prolonged preservation in mine tailing matrix, the diffusion of can not migrating.
(3) contain a large amount of mineral nutritions in the farmyard manure, can be plant-growth nutrient is provided.
(4) adsorbable the holding of charcoal stayed soil nutrient, increases soil water retention power, promotes plant-growth.
(5) charcoal can reduce the bio-toxicity of heavy-metal contaminated soil, promotes the breeding of plant-growth and soil microorganisms.
(6) utilize the enriching heavy metal plant of area, mine growth to fire farmyard manure, with farmyard manure improvement mine pollution matrix and promotion plant-growth, realized the safe recycle of phytoremediation cutting again.
(7) Chinese tallow tree (
Sapium sebiferum), paulownia (
Paulownia fortunei) and fragrant camphor tree (
Cinnamomum camphora) have important economic worth, uncorrelated with the human foods chain.
(8) present technique is drawn materials conveniently, and is simple.
Embodiment:
Below in conjunction with embodiment the present invention is described in detail.
Embodiment 1
Experimentize in the Xiangtan Manganese Mine district year October in August, 2007 to 2009.
In August, (1) 2007, collect straw, bamboo branch and bamboo bar, the bamboo bar cuts into the long thick bamboo tube of 1m, shines dry rice straw, bamboo branch and thick bamboo tube.
(2) soil of the long weeds of periphery selection in uranium mine tailing storehouse is with soil to shovel together weeds and is dug, and processes lump zone soil turf, dries.
(3) collect the periphery zone of pollution growth of uranium tail storehouse enriching heavy metal plant dyers' grapes (
Phytolacca americana), dry.
(4) place mat straw and bamboo branch on a small area of ground of reservoir area, lay thick bamboo tube on straw and the bamboo branch covers dyers' grapes on the thick bamboo tube; Build up rick with this, cover tape soil turf on the rick, the rick bottom is exposed; Light rick from the bottom, smoulder, fire extinguishes the back and collects these baked wheaten cake soil and charcoals; Sieve, process the farmyard manure that contains charcoal.
In March, (5) 2008, select 1 piece kind of ground at the uranium mining tailing wasteland, dig the plantation hole, plantation hole specification is: long 50cm, wide 30cm, dark 50cm.The fragrant camphor tree of transplanting in the hole (
Cinnamomum camphora) seedling, add the 6kg farmyard manure in each hole, with tailings overburden soil miscellaneous fertilizers.
In September, (6) 2008, appearance ground to be investigated, fragrant camphor tree survival rate is 92%, the plant height rate of increase is 15%.Investigate in October, 2009, and fragrant camphor tree survival rate is 88%, and the plant height rate of increase is 23%.
Embodiment 2
Experimentize in the Xiangtan Manganese Mine district year October in September, 2008 to 2010.
In September, (1) 2008, collect straw, bamboo branch and bamboo bar, the bamboo bar cuts into the long thick bamboo tube of 1m, shines dry rice straw, bamboo branch and thick bamboo tube.
(2) soil of the long weeds of selection in the manganese ore surrounding area is with soil to shovel together weeds and is dug, and processes lump zone soil turf, dries.
(3) collect the growth of manganese ore zone of pollution enriching heavy metal plant Pinnate Beggarticks (
Bidens maximowicziana), dry.
(4) place mat straw and bamboo branch on manganese ore district a small area of ground, lay thick bamboo tube on straw and the bamboo branch covers Pinnate Beggarticks on the thick bamboo tube; Build up rick with this, cover tape soil turf on the rick, the rick bottom is exposed; Light rick from the bottom, smoulder, fire extinguishes the back and collects these baked wheaten cake soil and charcoals; Sieve, process the farmyard manure that contains charcoal.
In March, (5) 2009, select 1 piece kind of ground at manganese ore tailings accumulation area, dig the plantation hole, plantation hole specification is: long 50cm, wide 30cm, dark 50cm.In the hole, transplant Chinese tallow tree (
Sapium sebiferum) seedling, add the 6kg farmyard manure in each hole, with tailings overburden soil miscellaneous fertilizers.
In September, (6) 2009, appearance ground to be investigated, the Chinese tallow tree survival rate is 87%, the plant height rate of increase is 18%.Investigate in October, 2010, and the Chinese tallow tree survival rate is 84%, and the plant height rate of increase is 19%.
Embodiment 3
Experimentize in the Xiangtan Manganese Mine district year October in September, 2008 to 2010.
In September, (1) 2008, collect straw, bamboo branch and bamboo bar, the bamboo bar cuts into the long thick bamboo tube of 1m, shines dry rice straw, bamboo branch and thick bamboo tube.
(2) soil of the long weeds of selection in the manganese ore surrounding area is with soil to shovel together weeds and is dug, and processes lump zone soil turf, dries.
(3) collect the growth of manganese ore zone of pollution the enriching heavy metal plant black nightshade (
Solanum nigrum), dry.
(4) place mat straw and bamboo branch on manganese ore district a small area of ground, lay thick bamboo tube on straw and the bamboo branch covers black nightshade on the thick bamboo tube; Build up rick with this, cover tape soil turf on the rick, the rick bottom is exposed; Light rick from the bottom, smoulder, fire extinguishes the back and collects these baked wheaten cake soil and charcoals; Sieve, process the farmyard manure that contains charcoal.
In March, (5) 2009, select 1 piece kind of ground at manganese ore tailings accumulation area, dig the plantation hole, plantation hole specification is: long 50cm, wide 30cm, dark 50cm.In the hole, transplant paulownia (
Paulownia fortunei) seedling, add the 6kg farmyard manure in each hole, with tailings overburden soil miscellaneous fertilizers.
In September, (6) 2009, appearance ground to be investigated, the paulownia survival rate is 91%, the plant height rate of increase is 16%.Investigate in October, 2010, and paulownia survival rate 87%, plant height rate of increase are 26%.
The invention is not restricted to above-mentioned three kinds of embodiment, can also collect mine pollution district growth enriching heavy metal plant dyers' grapes (
Phytolacca americana), Pinnate Beggarticks (
Bidens maximowicziana) and black nightshade (
Solanum nigrum) in any two or three, dry, other is with embodiment 1 or embodiment 2 or embodiment 3.
Claims (2)
1. one kind is the special-purpose method that contains the charcoal farmyard manure of recovering plant cover of mine with the enriching heavy metal Plant Transformation, it is characterized in that, may further comprise the steps:
(1) collects straw, dry;
(2) collect bamboo branch and bamboo bar, the bamboo bar is cut into thick bamboo tube, dry bamboo branch and thick bamboo tube;
(3) collect the enriching heavy metal plant that grows in the mine pollution district, dry;
(4) soil of the long weeds of selection is with soil to shovel together weeds and is dug, and processes lump zone soil turf, dries;
(5) select a small area of ground, place mat straw and bamboo branch cover thick bamboo tube on straw and the bamboo branch; Cover the enriching heavy metal plant on the thick bamboo tube, build up rick, cover tape soil turf on the rick with this; The rick bottom is exposed, lights rick from the bottom, smoulder; Fire extinguishes the back and collects these baked wheaten cake soil and charcoals, sieves, and processes the farmyard manure that is rich in charcoal.
2. according to claim 1 is the special-purpose method that contains the charcoal farmyard manure of recovering plant cover of mine with the enriching heavy metal Plant Transformation, it is characterized in that, said enriching heavy metal plant be dyers' grapes (
Phytolacca americana), black nightshade (
Solanum nigrum) and Pinnate Beggarticks (
Bidens maximowicziana) in one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103812021A CN102515939B (en) | 2011-11-26 | 2011-11-26 | Method for converting heavy metal-enriched plant into miscellaneous fertilizer containing biological carbon special for mine vegetation recovery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103812021A CN102515939B (en) | 2011-11-26 | 2011-11-26 | Method for converting heavy metal-enriched plant into miscellaneous fertilizer containing biological carbon special for mine vegetation recovery |
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| Publication Number | Publication Date |
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| CN102515939A true CN102515939A (en) | 2012-06-27 |
| CN102515939B CN102515939B (en) | 2013-05-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102792801A (en) * | 2012-08-27 | 2012-11-28 | 王光敏 | Method of returning straw and sod smoldered soil to field |
| CN103922822A (en) * | 2014-03-03 | 2014-07-16 | 江苏上田环境修复有限公司 | Method for making manganese-containing organic fertilizer by utilization of manganese hyperaccumulation remediation plant Phytolacca acinosa |
| CN106311146A (en) * | 2016-09-20 | 2017-01-11 | 中国环境科学研究院 | Biological charcoal prepared by countryside heavy-metal-enriched plant biomass and preparation method and application of biological charcoal |
| CN109529773A (en) * | 2019-01-17 | 2019-03-29 | 三峡大学 | Iris is enriched with the preparation method and applications of the charcoal of manganese element |
| CN109987973A (en) * | 2019-03-13 | 2019-07-09 | 南京师范大学 | A kind of awns beanstalk lime-ash RE microbial fertilizer and the application of the method and its production producing RE microbial fertilizer using rehabilitation plant awns beanstalk |
| CN115591926A (en) * | 2022-09-26 | 2023-01-13 | 重庆大学（Cn） | Ecological restoration method for soil polluted by perfluorinated polyfluoroalkyl compound |
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| CA2272849C (en) * | 1996-08-30 | 2011-11-01 | University Of Maryland | Method for phytomining of nickel, cobalt and other metals from soil |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102792801A (en) * | 2012-08-27 | 2012-11-28 | 王光敏 | Method of returning straw and sod smoldered soil to field |
| CN102792801B (en) * | 2012-08-27 | 2015-11-25 | 王光敏 | Stalk, turf are boiled in a covered pot over a slow fire soil and are returned field method |
| CN103922822A (en) * | 2014-03-03 | 2014-07-16 | 江苏上田环境修复有限公司 | Method for making manganese-containing organic fertilizer by utilization of manganese hyperaccumulation remediation plant Phytolacca acinosa |
| CN103922822B (en) * | 2014-03-03 | 2016-04-20 | 上田环境修复股份有限公司 | A kind of manganese ultraproduct that utilizes tires out the method for rehabilitation plant Phytolacca acinosa making containing manganese organic fertilizer |
| CN106311146A (en) * | 2016-09-20 | 2017-01-11 | 中国环境科学研究院 | Biological charcoal prepared by countryside heavy-metal-enriched plant biomass and preparation method and application of biological charcoal |
| CN109529773A (en) * | 2019-01-17 | 2019-03-29 | 三峡大学 | Iris is enriched with the preparation method and applications of the charcoal of manganese element |
| CN109987973A (en) * | 2019-03-13 | 2019-07-09 | 南京师范大学 | A kind of awns beanstalk lime-ash RE microbial fertilizer and the application of the method and its production producing RE microbial fertilizer using rehabilitation plant awns beanstalk |
| CN109987973B (en) * | 2019-03-13 | 2022-08-26 | 南京师范大学 | Method for producing rare earth micro-fertilizer by using remediation plant dicranopteris pedata, dicranopteris pedata ash rare earth micro-fertilizer produced by method and application of dicranopteris pedata ash rare earth micro-fertilizer |
| CN115591926A (en) * | 2022-09-26 | 2023-01-13 | 重庆大学（Cn） | Ecological restoration method for soil polluted by perfluorinated polyfluoroalkyl compound |
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| CN102515939B (en) | 2013-05-29 |
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