CN109530415A - A method of it is repaired using heavy-metal contaminated soil charcoal repair materials - Google Patents

A method of it is repaired using heavy-metal contaminated soil charcoal repair materials Download PDF

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Publication number
CN109530415A
CN109530415A CN201811504976.7A CN201811504976A CN109530415A CN 109530415 A CN109530415 A CN 109530415A CN 201811504976 A CN201811504976 A CN 201811504976A CN 109530415 A CN109530415 A CN 109530415A
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CN
China
Prior art keywords
heavy
charcoal
repaired
contaminated soil
modification biological
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Pending
Application number
CN201811504976.7A
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Chinese (zh)
Inventor
韩哲
朱英
邵艳秋
单然然
何媛
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New Material Institute of Shandong Academy of Sciences
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New Material Institute of Shandong Academy of Sciences
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Priority to CN201811504976.7A priority Critical patent/CN109530415A/en
Publication of CN109530415A publication Critical patent/CN109530415A/en
Pending legal-status Critical Current

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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
    • B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
    • 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

Abstract

The present invention relates to heavy metal adsorption fields, and in particular to a method of it is repaired using heavy-metal contaminated soil charcoal repair materials.By the modifying function of charcoal, the suction-operated of heavy metal ion is further increased, there is apparent suction-operated to metal cation, especially for containing Cu2、Zn2、Hg2、Pb2+Ionic adsorption effect is obvious.

Description

A method of it is repaired using heavy-metal contaminated soil charcoal repair materials
Technical field
The invention belongs to heavy metal adsorption fields, and in particular to a kind of to utilize heavy-metal contaminated soil charcoal repair materials The method repaired.
Background technique
Heavy metal pollution of soil, which refers to, brings heavy metal substance into soil due to mankind's activity, makes heavy metal content in soil phase It is significantly higher compared with Natural Background Values, and then the phenomenon that destruction ecological environment.Heavy metal pollution of soil will have plant absorption, herding It is enriched with and enters human body eventually by food chain, and then induce various diseases, endanger human health.It will lead to kidney damage as cadmium is exceeded The lesions such as wound, osteoporosis, cancer；The exceeded symptom that may cause similar Parkinson disease of manganese；Lead doping then can to blood, The human organs such as nervous centralis, reproductive system, immune system, kidney and the circulatory system cause to damage.Therefore, administer and repair weight Metallic pollution soil is to preserving the ecological environment, ensure that human health is of great significance.
Summary of the invention
The application's is designed to provide a kind of side repaired using heavy-metal contaminated soil charcoal repair materials Method, technical scheme are as follows:
The method repaired using heavy-metal contaminated soil charcoal repair materials, steps are as follows:
(1) FeCl of 0.1mol/L is used3Solution carries out Soil leaching；
(2) it selects ciliate desert-grass or Sedum alfredii Hance to be planted in heavy metal soil, is irrigated and apply fertilizer；
(3) terminate when vegetation period, the plant containing heavy metal is removed；
(4) modification biological Carbon Materials are applied into the soil after removal plant, is uniformly mixed, is aged 30-60 days.
Modification biological Carbon Materials the preparation method is as follows:
(1) plant material is immersed in concentration is 2.5mol/LFeCl3Solution in 12-48h, it is dry at 60-70 DEG C, It crushes, is then pyrolyzed in a nitrogen atmosphere, temperature is 600-800 DEG C, and heating rate is 10-15 DEG C/min, is then cooled down To room temperature, 80 meshes are crossed, plant powder material is obtained；
(2) plant powder that step (1) obtains is added in the acetum of 1mol/L, stirring 20-40min is allowed to fill Divide mixing, be then added in isopropyl titanate solution, stirs 30-40min, dried at 60-70 DEG C, obtain modification biological raw material of wood-charcoal Material.
Preferably, the isopropyl titanate solution concentration in step (2) is 0.2mol/L.
Preferably, fertilizer is the mixture of potassium chloride, magnesium chloride, calcium chloride and modification biological charcoal.
Preferably, fertilizer potassium chloride: magnesium chloride: calcium chloride: modification biological charcoal=2:3:3:4.
Preferably, modification biological charcoal applied amount is 12-16g/m in fertilizer2。
The beneficial effects of the present invention are:
1. the suction-operated of heavy metal ion is further increased by the modifying function of charcoal, to metal sun from Son has apparent suction-operated, especially for containing Cu2+、Zn2+、Hg2+、Pb2+Ionic adsorption effect is obvious；
2. charcoal technology and phytoremediation, elution technique are combined by the present invention, pass through modification biological charcoal and other Fertilizer reasonably matches, and while promoting plant growth, improves the adsorption efficiency of plant, expands use scope；
3. adsorbent material performance is stablized, reproducibility is good, realizes resource utilization.
Specific embodiment
This programme is described further below in conjunction with specific example.These examples are not limited to for illustrating the present invention It limits the scope of the invention.Implementation condition used in the examples can do further adjustment according to the condition of specific producer, be Dated implementation condition is usually the condition in routine experiment.
In the present embodiment waste water, Cu2+Content be 0.53mg/L, Zn2+Content be 0.64mg/L, Hg2+Content be 0.31mg/L, Pb2+Content be 0.52mg/L.
Embodiment 1:
The method repaired using heavy-metal contaminated soil charcoal repair materials, steps are as follows:
(1) FeCl of 0.1mol/L is used3Solution carries out Soil leaching；
(2) it selects ciliate desert-grass or Sedum alfredii Hance to be planted in heavy metal soil, is irrigated and apply fertilizer；
(3) terminate when vegetation period, the plant containing heavy metal is removed；
(4) modification biological Carbon Materials are applied into the soil after removal plant, is uniformly mixed, is aged 30-60 days.
Modification biological Carbon Materials the preparation method is as follows:
(1) plant material is immersed in concentration is 2.5mol/L FeCl3Solution in 12h, dry, pulverize at 60 DEG C, Then it is pyrolyzed in a nitrogen atmosphere, temperature is 600 DEG C, and heating rate is 10 DEG C/min, is then cooled to room temperature, and 80 mesh are crossed Sieve, obtains plant powder material；
(2) plant powder that step (1) obtains is added in the acetum of 1mol/L, stirring 25min is allowed to abundant Then mixing is added in isopropyl titanate solution, stir 30min, dry at 60 DEG C, obtain modification biological Carbon Materials.
Preferably, the isopropyl titanate solution concentration in step (2) is 0.2mol/L.
Preferably, fertilizer is the mixture of potassium chloride, magnesium chloride, calcium chloride and modification biological charcoal.
Preferably, fertilizer potassium chloride: magnesium chloride: calcium chloride: modification biological charcoal=2:3:3:4.
Preferably, modification biological charcoal applied amount is 15g/m in fertilizer2。
To Cu2Adsorption efficiency reach 89.2%, to Hg2+Adsorption efficiency reach 88.4%, Zn2+Adsorption efficiency reach 91.7%, to Pb2+Adsorption efficiency reach 90.1%.
Embodiment 2:
The method repaired using heavy-metal contaminated soil charcoal repair materials, steps are as follows:
(1) FeCl of 0.1mol/L is used3Solution carries out Soil leaching；
(2) it selects ciliate desert-grass or Sedum alfredii Hance to be planted in heavy metal soil, is irrigated and apply fertilizer；
(3) terminate when vegetation period, the plant containing heavy metal is removed；
(4) modification biological Carbon Materials are applied into the soil after removal plant, is uniformly mixed, is aged 40 days.
Modification biological Carbon Materials the preparation method is as follows:
(1) plant material is immersed in concentration is 2.5mol/LFeCl3Solution in for 24 hours, dry, pulverize at 70 DEG C, Then it is pyrolyzed in a nitrogen atmosphere, temperature is 800 DEG C, and heating rate is 15 DEG C/min, is then cooled to room temperature, and 80 mesh are crossed Sieve, obtains plant powder material；
(2) plant powder that step (1) obtains is added in the acetum of 1mol/L, stirring 30min is allowed to abundant Then mixing is added in isopropyl titanate solution, stir 30-40min, dry at 60-70 DEG C, obtain modification biological raw material of wood-charcoal Material.
Preferably, the isopropyl titanate solution concentration in step (2) is 0.2mol/L.
Preferably, fertilizer is the mixture of potassium chloride, magnesium chloride, calcium chloride and modification biological charcoal.
Preferably, fertilizer potassium chloride: magnesium chloride: calcium chloride: modification biological charcoal=2:3:3:4.
Preferably, modification biological charcoal applied amount is 14g/m in fertilizer2.To Cu2Adsorption efficiency reach 87.5%, to Hg2+ Adsorption efficiency reach 92.3%, Zn2+Adsorption efficiency reach 92.7%, to Pb2+Adsorption efficiency reach 91.6%.
Embodiment 3:
The method repaired using heavy-metal contaminated soil charcoal repair materials, steps are as follows:
(1) FeCl of 0.1mol/L is used3Solution carries out Soil leaching；
(2) it selects ciliate desert-grass or Sedum alfredii Hance to be planted in heavy metal soil, is irrigated and apply fertilizer；
(3) terminate when vegetation period, the plant containing heavy metal is removed；
(4) modification biological Carbon Materials are applied into the soil after removal plant, is uniformly mixed, is aged 60 days.
Modification biological Carbon Materials the preparation method is as follows:
(1) plant material is immersed in concentration is 2.5mol/LFeCl3Solution 48h, dry, pulverize at 70 DEG C, so It is pyrolyzed in a nitrogen atmosphere afterwards, temperature is 700 DEG C, and heating rate is 15 DEG C/min, is then cooled to room temperature, and 80 mesh are crossed Sieve, obtains plant powder material；
(2) plant powder that step (1) obtains is added in the acetum of 1mol/L, stirring 30min is allowed to abundant Then mixing is added in isopropyl titanate solution, stir 30min, dry at 70 DEG C, obtain modification biological Carbon Materials.
Preferably, the isopropyl titanate solution concentration in step (2) is 0.2mol/L.
Preferably, fertilizer is the mixture of potassium chloride, magnesium chloride, calcium chloride and modification biological charcoal.
Preferably, fertilizer potassium chloride: magnesium chloride: calcium chloride: modification biological charcoal=2:3:3:4.
Preferably, modification biological charcoal applied amount is 16g/m in fertilizer2。
To Cu2Adsorption efficiency reach 92.1%, to Hg2+Adsorption efficiency reach 93.2%, Zn2+Adsorption efficiency reach 90.4%, to Pb2+Adsorption efficiency reach 92.5%.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention In the protection scope of art scheme.

Claims (6)

1. a kind of method repaired using heavy-metal contaminated soil charcoal repair materials, which is characterized in that steps are as follows:
(1) FeCl of 0.1mol/L is used3Solution carries out Soil leaching；
(2) it selects ciliate desert-grass or Sedum alfredii Hance to be planted in heavy metal soil, is irrigated and apply fertilizer；
(3) terminate when vegetation period, the plant containing heavy metal is removed；
(4) modification biological Carbon Materials are applied into the soil after removal plant, is uniformly mixed, is aged 30-60 days.
2. the method according to claim 1 repaired using heavy-metal contaminated soil charcoal repair materials, special Sign is, the modification biological Carbon Materials the preparation method is as follows:
(1) plant material is immersed in concentration is 2.5mol/L FeCl3Solution in 12-48h, dry at 60-70 DEG C, powder It is broken, it is then pyrolyzed in a nitrogen atmosphere, temperature is 600-800 DEG C, and heating rate is 10-15 DEG C/min, is subsequently cooled to Room temperature crosses 80 meshes, obtains plant powder material；
(2) plant powder that step (1) obtains is added in the acetum of 1mol/L, stirring 20-40min is allowed to sufficiently mixed It closes, is then added in isopropyl titanate solution, stir 30-40min, dried at 60-70 DEG C, obtain modification biological Carbon Materials.
3. the method according to claim 2 repaired using heavy-metal contaminated soil charcoal repair materials, special Sign is that the isopropyl titanate solution concentration in the step (2) is 0.2mol/L.
4. the method repaired according to claim 3 using heavy-metal contaminated soil charcoal repair materials, which is characterized in that The fertilizer is the mixture of potassium chloride, magnesium chloride, calcium chloride and modification biological charcoal.
5. the method according to claim 4 repaired using heavy-metal contaminated soil charcoal repair materials, special Sign is, the fertilizer potassium chloride: magnesium chloride: calcium chloride: modification biological charcoal=2:3:3:4.
6. the method according to claim 5 repaired using heavy-metal contaminated soil charcoal repair materials, special Sign is that modification biological charcoal applied amount is 12-16g/m in the fertilizer2。
CN201811504976.7A 2018-12-10 2018-12-10 A method of it is repaired using heavy-metal contaminated soil charcoal repair materials Pending CN109530415A (en)

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005279373A (en) * 2004-03-29 2005-10-13 Matsushita Electric Ind Co Ltd Environment cleaning method
CN104258809A (en) * 2014-09-15 2015-01-07 河南农业大学 Modified biomass charcoal and remediation method of heavy metal contaminated soil
CN104307855A (en) * 2014-09-30 2015-01-28 武汉科技大学 Method for repairing heavy metal contaminated soil in situ by adopting multifunctional biological charcoal
CN105127186A (en) * 2015-09-30 2015-12-09 河南行知专利服务有限公司 Restoration method for heavy metal polluted soil of ore districts
CN105149345A (en) * 2015-09-30 2015-12-16 河南行知专利服务有限公司 Method collaboratively repairing soil heavy metal pollution by microorganisms, plants and biological carbon
CN106734123A (en) * 2016-11-18 2017-05-31 东莞中科土壤科技开发有限公司 A kind of composite conditioner repaired for heavy metal polluted soil of farmland and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005279373A (en) * 2004-03-29 2005-10-13 Matsushita Electric Ind Co Ltd Environment cleaning method
CN104258809A (en) * 2014-09-15 2015-01-07 河南农业大学 Modified biomass charcoal and remediation method of heavy metal contaminated soil
CN104307855A (en) * 2014-09-30 2015-01-28 武汉科技大学 Method for repairing heavy metal contaminated soil in situ by adopting multifunctional biological charcoal
CN105127186A (en) * 2015-09-30 2015-12-09 河南行知专利服务有限公司 Restoration method for heavy metal polluted soil of ore districts
CN105149345A (en) * 2015-09-30 2015-12-16 河南行知专利服务有限公司 Method collaboratively repairing soil heavy metal pollution by microorganisms, plants and biological carbon
CN106734123A (en) * 2016-11-18 2017-05-31 东莞中科土壤科技开发有限公司 A kind of composite conditioner repaired for heavy metal polluted soil of farmland and preparation method thereof

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Application publication date: 20190329