CN107185959A - A kind of method by planting three-coloured amaranth reduction soil heavy metal cadmium - Google Patents
A kind of method by planting three-coloured amaranth reduction soil heavy metal cadmium Download PDFInfo
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- CN107185959A CN107185959A CN201710453358.3A CN201710453358A CN107185959A CN 107185959 A CN107185959 A CN 107185959A CN 201710453358 A CN201710453358 A CN 201710453358A CN 107185959 A CN107185959 A CN 107185959A
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- coloured amaranth
- cadmium
- stalk
- soil
- heavy metal
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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
- 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 discloses a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium.The inventive method plants rehabilitation plant in cadmium pollution soil, and beneficial bacteria agent and stalk humification solution 1 are poured to the cadmium pollution soil according to water capacity for the 60%~70% of field capacity in repairing efficiency:The mixture of 1 weight, after repairing efficiency terminates, the rehabilitation plant is integrally removed from the cadmium pollution soil.The inventive method is on the premise of being based on three-coloured amaranth as biomass material, when with three-coloured amaranth cadmium pollution soil repair, pass through the activation inducing action of beneficial bacteria agent and stalk humification solution, improve the biological effectiveness of heavy metal cadmium, promote the absorption enrichment of plant pair cadmium, so as to accelerate heavy-metal contaminated soil phytoremediation speed, beneficial bacteria agent and stalk humification solution promotes three-coloured amaranth aerial part and cauline leaf in addition, the increase of root system amount of dry matter, it is finally reached recovery fertility, promote regional landscape harmonious, the ecological balance and the long-term goal of sustainable development.
Description
Technical field
It is more particularly to a kind of to reduce a soil huge sum of money by planting three-coloured amaranth the present invention relates to the bioremediation technology of contaminated soil
Belong to the method for cadmium pollution.
Background technology
At present the whole nation there are about 1.5 hundred million mu by the arable land of heavy metal, chemical fertilizer, pollution by pesticides, account for the 1/10 of total cultivated area with
On.Data display in viewpoint of Chinese food safety Forum report in 2009, the arable land of China 1/6 is dirty by heavy metal pollution
Contaminate at least 20,000,000 hectares of soil erosion.
Heavy metal pollution of soil brings serious consequence：One is influence farmland quality, causes direct economic loss.According to estimating
Calculate, the whole nation is annual because the grain of heavy metal pollution is up to 12,000,000 tons, and the direct economic loss caused is more than 20,000,000,000 yuan.Two be shadow
Food security is rung, health is threatened.Heavy metal is accumulated in crops, and enters human body by food chain, triggers various diseases
Disease, is finally detrimental to health.Three be the influence export of farm produce, reduces international competitiveness.Since the nineties in last century, because of agricultural chemicals
Residual and content of beary metal are exceeded, and the event that the export of farm produce is returned goods by foreign side, claims damages and terminated a contract happens occasionally, and part is passed
Large agricultural product of uniting are forced to exit international market.Particularly after China's entry into the World Trade Organization, developed country is to China's export
Agricultural product require to improve, outlet pressure increase.The characteristics of having cumulative bad, hysteresis quality, irreversibility due to soil pollution, administers
Difficulty is big, cost is high, the cycle is long, by the development of long-term influence economic society.Soil contamination problem has become influence masses' body
Body health, infringement mass interest, the key factor for threatening agricultural product security.Therefore, the repairing research of heavy metal pollution is not allowed to neglect
Depending on.
Reparation is a very arduous and important task.Conventional remediation contaminated soil method has leaching method, visitor at present
The chemical methodes such as physical method and biological reducing method, complex compound extraction such as local method, absorption fixation.Physical method takes effect slow
Slowly, though chemical method easily brings secondary pollution soon
The content of the invention
The purpose of the embodiment of the present invention be for above-mentioned prior art defect there is provided a kind of cost it is low, to environmental perturbation
Less, the plant restoration method for the cadmium pollution soil having no side effect.
To achieve these goals, a kind of side that soil heavy metal cadmium is reduced by planting three-coloured amaranth of the present invention
Method, it is characterised in that：Including following technical step：Rehabilitation plant is planted in cadmium pollution soil, according to soil in repairing efficiency
Earth water-holding capacity pours beneficial bacteria agent to the cadmium pollution soil for the 60%~70% of field capacity and stalk humification is molten
Liquid 1:The mixture of 1 weight, after repairing efficiency terminates, the rehabilitation plant is integrally removed from the cadmium pollution soil；
The rehabilitation plant is three-coloured amaranth；The beneficial bacteria agent is bacillus subtilis, thermophilic hair bacillus, colloid gemma bar
Bacterium, the fixation support be 20-30% dregs of beans, 15-20% bitter buckwheat husks, 40-45% corn stigmas, 2-3% maize straws,
0.05-0.2%NH4NO3, 0.03-0.05%MgSO4·7H2O；
The stalk humification solution is the stalk section that stalk is ground into 20cm length after wheat, maize straw harvest；Press
The amount of stalk quality 20% adds feces of livestock and poultry, adds water so that stalk section and feces of livestock and poultry drench completely；Every 1000 parts of stalks add
Enter the KH of stalk parts by weight2PO46 parts, MnSO4·4H20.8 part of O, Na2-EDTA·2H24 parts of O 0.1, glycine, is mixed thoroughly,
Heap is set to haystack, keeps haystack humidity to be made compost in 45-55%.
It is described that rehabilitation plant is planted in cadmium pollution soil, excavation is carried out to top layer 20cm soil layers before planting and digged, often
Interval 40~50cm making ridges stay ditch, apply fertilizer to the subsoil simultaneously；The plantation row of three-coloured amaranth two per ridge, 10~20cm of line space, strain spacing 20~
30cm；After plantation 25~50 days, any nitrogenous fertilizer is imposed in urea, carbon ammonium, sulphur ammonium, ammonium nitrate, high-nitrogen compound fertilizer once, consumption
30~50kg/ mus；Irrigate in good time, using the rainwater retained in governance unit, soil moisture content is preferably maintained at field water holding for a long time
The 60~75% of amount.
The dressing fertilizer also includes organic materials organic materials：Stalk, peat, wood chip, chicken manure, grass meal；Inorganic material：Stone
Ash, calcium magnesium phosphate, siliceous fertilizer, solid sulfate；And any or combination in microorganism formulation.
The base fertilizer uses the Lignin sustained-release fertilizer being composited by lignin and inorganic nutrients, and its content of organic matter is
500~900g/kg, total humic acid is 260~500g/kg, and full nitrogen is 8~14g/kg, and full phosphorus is 5~8g/kg, and available potassium is
280~330mg/kg, applied amount is every plant of 0.2~0.5kg.
The base fertilizer uses the Lignin sustained-release fertilizer being composited by lignin and inorganic nutrients, and its content of organic matter is
500~800g/kg, total humic acid is 260~450g/kg, and full nitrogen is 10~12g/kg, and full phosphorus is 5~6g/kg, and available potassium is
280~300mg/kg, applied amount is every plant of 0.2~0.3kg.
The kind of the three-coloured amaranth is Taide.
Peptide glycan on the B. subtilis cell wall, can coordinate substantial amounts of metal ion from the aqueous solution, special
It is not most of transition metal, such as the first B metal of enrichment can be more than 1nmol/ μ g (relative to peptide glycan deadweight).
The three-coloured amaranth is harvested in collecting season, and harvested aboveground vegetation part is carried out to burn ashing processing.
It is of the present invention a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium, it is characterised in that：This hair
Bright method is on the premise of being based on three-coloured amaranth as biomass material, when with three-coloured amaranth cadmium pollution soil repair, to pass through beneficial bacterium bacterium
Agent and the activation inducing action of stalk humification solution, improve the biological effectiveness of heavy metal cadmium, promote the suction of plant pair cadmium
Enrichment is received, so as to accelerate heavy-metal contaminated soil phytoremediation speed, beneficial bacteria agent and stalk humification solution promotees in addition
Enter three-coloured amaranth aerial part and cauline leaf, the increase of root system amount of dry matter, be finally reached recovery fertility, promote regional landscape and
The humorous, ecological balance and the long-term goal of sustainable development.
Embodiment
Embodiment 1
It is of the present invention a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium, it is characterised in that：Including
Following technical step：Rehabilitation plant is planted in cadmium pollution soil, in repairing efficiency according to water capacity be field water holding
The 60% of amount pours beneficial bacteria agent and stalk humification solution 1 to the cadmium pollution soil:The mixture of 1 weight, repairs week
After phase terminates, the rehabilitation plant is integrally removed from the cadmium pollution soil；Rehabilitation plant is three-coloured amaranth；Beneficial bacteria agent is
Bacillus subtilis, thermophilic hair bacillus, colloid bacillus cereus, fixation support are 20% dregs of beans, 15% bitter buckwheat husk, 40% jade
Rice palpus, 2% maize straw, 0.05%NH4NO3, 0.03%MgSO4·7H2O；Stalk humification solution is in wheat, corn stalk
After stalk harvest, stalk is ground into the stalk section of 20cm length；The amount for pressing stalk quality 20% adds feces of livestock and poultry, adds water so that stalk
Section and feces of livestock and poultry drench completely；Every 1000 parts of stalks add the KH of stalk parts by weight2PO46 parts, MnSO4·4H2O 0.8
Part, Na2-EDTA·2H24 parts of O 0.1, glycine, is mixed thoroughly, and heap is set to haystack, keeps haystack humidity to be made compost in 45-55%；In cadmium
Rehabilitation plant is planted in contaminated soil, carrying out excavation to top layer 20cm soil layers before planting is digged, and ditch is stayed at interval of 40cm making ridges,
Apply fertilizer to the subsoil simultaneously；The row of three-coloured amaranth two, line space 10cm, strain spacing 20cm are planted per ridge；After plantation 25 days, urea, carbon ammonium, sulphur are imposed
In ammonium, ammonium nitrate, high-nitrogen compound fertilizer any nitrogenous fertilizer once, 30kg/ mus of consumption；The three-coloured amaranth is harvested in collecting season,
Harvested aboveground vegetation part is carried out to burn ashing processing.
Embodiment 2
It is of the present invention a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium, it is characterised in that：Including
Following technical step：Rehabilitation plant is planted in cadmium pollution soil, in repairing efficiency according to water capacity be field water holding
The 65% of amount pours beneficial bacteria agent and stalk humification solution 1 to the cadmium pollution soil:The mixture of 1 weight, repairs week
After phase terminates, the rehabilitation plant is integrally removed from the cadmium pollution soil；Rehabilitation plant is three-coloured amaranth；The beneficial bacterium bacterium
Agent is bacillus subtilis, thermophilic hair bacillus, colloid bacillus cereus, and the fixation support is 25% dregs of beans, 20% duck wheat
Skin, 45% corn stigma, 3% maize straw, 0.2%NH4NO3, 0.05%MgSO4·7H2O；Stalk humification solution is small
After wheat, maize straw harvest, stalk is ground into the stalk section of 20cm length；The amount for pressing stalk quality 20% adds feces of livestock and poultry, plus
Water causes stalk section and feces of livestock and poultry to drench completely；Every 1000 parts of stalks add the KH of stalk parts by weight2PO46 parts, MnSO4·
4H20.8 part of O, Na2-EDTA·2H24 parts of O 0.1, glycine, is mixed thoroughly, and heap is set to haystack, keeps haystack humidity to be macerated 45%
Fertilizer.
Embodiment 3
It is of the present invention a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium, it is characterised in that：Including
Following technical step：Rehabilitation plant is planted in cadmium pollution soil, in repairing efficiency according to water capacity be field water holding
The 70% of amount pours beneficial bacteria agent and stalk humification solution 1 to the cadmium pollution soil:The mixture of 1 weight, repairs week
After phase terminates, the rehabilitation plant is integrally removed from the cadmium pollution soil；Rehabilitation plant is three-coloured amaranth；The beneficial bacterium bacterium
Agent is bacillus subtilis, thermophilic hair bacillus, colloid bacillus cereus, and the fixation support is 22% dregs of beans, 18% duck wheat
Skin, 45% corn stigma, 3% maize straw, 0.2%NH4NO3, 0.05%MgSO4·7H2O；Stalk humification solution is small
After wheat, maize straw harvest, stalk is ground into the stalk section of 20cm length；The amount for pressing stalk quality 20% adds feces of livestock and poultry, plus
Water causes stalk section and feces of livestock and poultry to drench completely；Every 1000 parts of stalks add the KH of stalk parts by weight2PO46 parts, MnSO4·
4H20.8 part of O, Na2-EDTA·2H24 parts of O 0.1, glycine, is mixed thoroughly, and heap is set to haystack, keeps haystack humidity to be macerated 55%
Fertilizer.
The Experimental comparison of embodiment 4
Three-coloured amaranth is harvested when growing into 50 days, and point ground and root system two parts are harvested.
Measure project is：Soil sample is divided into Rhizosphere Soil content of beary metal and Non-rhizosphere soil content of beary metal, plant sample point on the ground
Part and under ground portion, determine plant weights, content of beary metal.
Result of the test is as follows：
(1) beneficial bacteria agent and stalk humification solution can promote the increase of dry matter weight so that three-coloured amaranth root system pair
50mg/kg heavy metal cadmium has good patience.
(2) beneficial bacteria agent and stalk humification solution is conducive to the growth of three-coloured amaranth root system so that three-coloured amaranth root system is to 50mg/
Kg heavy metal cadmium has good patience.
Present invention experiment shows to plant three-coloured amaranth in the soil of cadmium pollution, and beneficial bacteria agent and stalk humification solution is lured
The effect led can promote the increase of three-coloured amaranth aerial part and root system amount of dry matter, activate heavy metal in soil cadmium, promote plant
Absorption enrichment to cadmium, improves the remediation efficiency of cadmium pollution soil, accelerates polluted soil phyto repair process, be finally reached recovery
Fertility, promotes the ecological balance and the long-term goal of sustainable development.
Claims (8)
1. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium, it is characterised in that：Including following technical step：
Rehabilitation plant is planted in cadmium pollution soil, according to 60%~70% that water capacity is field capacity in repairing efficiency
Beneficial bacteria agent and stalk humification solution 1 are poured to the cadmium pollution soil:The mixture of 1 weight, after repairing efficiency terminates,
The rehabilitation plant is integrally removed from the cadmium pollution soil；
The rehabilitation plant is three-coloured amaranth；The beneficial bacteria agent be bacillus subtilis, thermophilic hair bacillus, colloid bacillus cereus,
The fixation support is 20-30% dregs of beans, 15-20% bitter buckwheat husks, 40-45% corn stigmas, 2-3% maize straws, 0.05-
0.2%NH4NO3, 0.03-0.05%MgSO4·7H2O；
The stalk humification solution is the stalk section that stalk is ground into 20cm length after wheat, maize straw harvest；Press stalk
The amount of quality 20% adds feces of livestock and poultry, adds water so that stalk section and feces of livestock and poultry drench completely；Every 1000 parts of stalks add straw
The KH of stalk parts by weight2PO46 parts, MnSO4·4H20.8 part of O, Na2-EDTA·2H24 parts of O0.1, glycine, is mixed thoroughly, heap is set to
Haystack, keeps haystack humidity to be made compost in 45-55%.
2. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 1, it is characterised in that：Institute
State and rehabilitation plant is planted in cadmium pollution soil, carrying out excavation to top layer 20cm soil layers before planting digs, at interval of 40~
50cm making ridges stay ditch, apply fertilizer to the subsoil simultaneously；The row of three-coloured amaranth two, 10~20cm of line space, 20~30cm of strain spacing are planted per ridge；Plantation 25
After~50 days, any nitrogenous fertilizer is imposed in urea, carbon ammonium, sulphur ammonium, ammonium nitrate, high-nitrogen compound fertilizer once, 30~50kg/ of consumption
Mu；In good time irrigate, using the rainwater retained in governance unit, soil moisture content be preferably maintained at for a long time field capacity 60~
75%.
3. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 2, it is characterised in that：Institute
Stating dressing fertilizer also includes organic materials organic materials：Stalk, peat, wood chip, chicken manure, grass meal；Inorganic material：Lime, calcium and magnesium phosphorus
Fertilizer, siliceous fertilizer, solid sulfate；And any or combination in microorganism formulation.
4. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 3, it is characterised in that：Institute
It is 35-40 days after plantation three-coloured amaranth to state the addition time topdressed.
5. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 2, it is characterised in that：Institute
State base fertilizer and use the Lignin sustained-release fertilizer being composited by lignin and inorganic nutrients, its content of organic matter is 500~900g/
Kg, total humic acid is 260~500g/kg, and full nitrogen is 8~14g/kg, and full phosphorus is 5~8g/kg, and available potassium is 280~330mg/
Kg, applied amount is every plant of 0.2~0.5kg.
6. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 5, it is characterised in that：Institute
State base fertilizer and use the Lignin sustained-release fertilizer being composited by lignin and inorganic nutrients, its content of organic matter is 500~800g/
Kg, total humic acid is 260~450g/kg, and full nitrogen is 10~12g/kg, and full phosphorus is 5~6g/kg, and available potassium is 280~300mg/
Kg, applied amount is every plant of 0.2~0.3kg.
7. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 6, it is characterised in that：Institute
The kind for stating three-coloured amaranth is Taide.
8. it is a kind of by planting the method that three-coloured amaranth reduces soil heavy metal cadmium as claimed in claim 7, it is characterised in that：Institute
The content for stating cadmium in the soil of cadmium pollution is 45-55mg/kg.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380667A (en) * | 2018-02-06 | 2018-08-10 | 中国科学院华南植物园 | A method of it improving rehabilitation plant and absorbs Cadmium in Soil efficiency |
| CN109369226A (en) * | 2018-11-09 | 2019-02-22 | 绵阳师范学院 | A kind of bio-bacterial manure and application of fortification of plants cadmium pollution soil repair |
| CN109628103A (en) * | 2018-11-27 | 2019-04-16 | 中冶南方都市环保工程技术股份有限公司 | A kind of activator and its preparation method and application for cadmium pollution soil reparation |
| CN110064647A (en) * | 2019-06-05 | 2019-07-30 | 湖南双晟科技信息咨询有限公司 | A kind of processing method of cadmium pollution soil |
| CN111014276A (en) * | 2019-12-20 | 2020-04-17 | 西南林业大学 | Method for improving heavy metal pollution in agricultural products |
| CN111389901A (en) * | 2020-03-30 | 2020-07-10 | 山东省农业科学院蔬菜花卉研究所 | Plant efficient restoration method for sunlight greenhouse cadmium overproof soil |
| CN111872108A (en) * | 2020-06-18 | 2020-11-03 | 宋红刚 | Plant root system growth induction device based on heavy metal soil restoration technology |
| CN112275795A (en) * | 2020-10-10 | 2021-01-29 | 山东省科学院生态研究所 | Method for remedying heavy metal contaminated soil by combining alfalfa and bacillus |
| CN113926849A (en) * | 2021-10-29 | 2022-01-14 | 四川农业大学 | Application and method of grain amaranth in repairing nickel-contaminated soil |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380667A (en) * | 2018-02-06 | 2018-08-10 | 中国科学院华南植物园 | A method of it improving rehabilitation plant and absorbs Cadmium in Soil efficiency |
| CN109369226A (en) * | 2018-11-09 | 2019-02-22 | 绵阳师范学院 | A kind of bio-bacterial manure and application of fortification of plants cadmium pollution soil repair |
| CN109369226B (en) * | 2018-11-09 | 2021-08-03 | 绵阳师范学院 | Biological bacterial fertilizer for strengthening phytoremediation of cadmium-polluted soil and application thereof |
| CN109628103A (en) * | 2018-11-27 | 2019-04-16 | 中冶南方都市环保工程技术股份有限公司 | A kind of activator and its preparation method and application for cadmium pollution soil reparation |
| CN110064647A (en) * | 2019-06-05 | 2019-07-30 | 湖南双晟科技信息咨询有限公司 | A kind of processing method of cadmium pollution soil |
| CN111014276A (en) * | 2019-12-20 | 2020-04-17 | 西南林业大学 | Method for improving heavy metal pollution in agricultural products |
| CN111389901A (en) * | 2020-03-30 | 2020-07-10 | 山东省农业科学院蔬菜花卉研究所 | Plant efficient restoration method for sunlight greenhouse cadmium overproof soil |
| CN111872108A (en) * | 2020-06-18 | 2020-11-03 | 宋红刚 | Plant root system growth induction device based on heavy metal soil restoration technology |
| CN112275795A (en) * | 2020-10-10 | 2021-01-29 | 山东省科学院生态研究所 | Method for remedying heavy metal contaminated soil by combining alfalfa and bacillus |
| CN112275795B (en) * | 2020-10-10 | 2022-04-08 | 山东省科学院生态研究所 | Method for remedying heavy metal contaminated soil by combining alfalfa and bacillus |
| CN113926849A (en) * | 2021-10-29 | 2022-01-14 | 四川农业大学 | Application and method of grain amaranth in repairing nickel-contaminated soil |
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