CN107649510A - A kind of heavy-metal contaminated soil renovation agent and its application - Google Patents
A kind of heavy-metal contaminated soil renovation agent and its application Download PDFInfo
- Publication number
- CN107649510A CN107649510A CN201710710037.7A CN201710710037A CN107649510A CN 107649510 A CN107649510 A CN 107649510A CN 201710710037 A CN201710710037 A CN 201710710037A CN 107649510 A CN107649510 A CN 107649510A
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- powder
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- contaminated soil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The invention discloses a kind of heavy-metal contaminated soil renovation agent and its application, including 15~40 parts by weight oyster shell powders, 5~15 parts by weight lotus leaf powders, 5~15 parts by weight bracketplant powder, 10~30 parts by weight tea seed episperm powder, 5~10 parts by weight agricultural crop straw powder, 5~10 parts by weight almond powder, 5~10 parts by weight plum pit powder, 0.01~0.05 parts by weight poly-aspartate, 2~5 parts by weight sorbierites, 2~5 parts by weight hydroxylapatite powders and 5~10 weight parts of fine coal ash.The agricultural crop straw powder includes the one or more in reed straw powder, cattail stalk powder, maize straw powder, wheat stalk powder or broomcorn straw powder.The heavy-metal contaminated soil renovation agent can be applied to restoration of soil polluted by heavy metal, especially by Cr, Cu, Pb, Cd contaminated soil.Compared with prior art, the present invention program has the advantages that manufacturing cost is cheap, repairing effect is good, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to environmental technology field, and in particular to a kind of heavy-metal contaminated soil renovation agent and its application.
Background technology
National economy it is fast-developing while bringing the very big material of people and meeting, also bring a series of pollutions and ask
Topic, especially for the pollution problem of soil.Soil is foundation for the survival of mankind, and most important a kind of thing on the earth
Matter, the even more source of mankind's basic living and guarantee." bread is the staff of life, eats with soil as this ", has said soil to human survival
Indispensable property, also said dependence of the human survival to soil.However, heavy metal pollution be soil contamination problem most
One of big harm, and human foods chain may be entered by crops.Heavy metal once enters human body, because it can not be voluntarily
Metabolism is decomposed, and human health will be caused greatly to endanger, as heavy metal causes fetal anomaly, children's lead poisoning to cause children to give birth to
Long hypoevolutism, arsenic poisoning, " itai-itai " etc..
At present, mainly have for the recovery technique of heavy-metal contaminated soil：Soil replacement method, original position or ex-situ chemical washing, heat
Desorption method, vitrifying reparation etc., wherein, soil replacement method, implementation quantities is big, and investment cost is high, destroys soil structures, and right
The dirt soil to swap out is dealt carefully with again can just prevent secondary pollution, therefore, be not suitable for the improvement of pollution in wide area soil；It is in situ
Or ex-situ chemical washing, this method have it is with high costs, and for washed off soil reagent enter soil after will cause secondary dirt
Dye；Thermal desorption method, being only used for processing has volatile heavy metal, such as mercury, and needs consumption substantial amounts of in processing procedure
Energy, financial cost are higher；Vitrifying reparation, this method remediation efficiency is high, but the soil after reparation needs landfill disposal, repairs
Soil after cost height and reparation can not be agricultural again.
The content of the invention
The technical problems to be solved by the invention are：A kind of economical and practical and energy-conserving and environment-protective heavy-metal contaminated soils are provided
Renovation agent and its application.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of heavy-metal contaminated soil renovation agent,
Including 15~40 parts by weight oyster shell powders, 5~15 parts by weight lotus leaf powders, 5~15 parts by weight bracketplant powder, 10~30 parts by weight tea seeds
Shell powder, 5~10 parts by weight agricultural crop straw powder, 5~10 parts by weight almond powder, 5~10 parts by weight plum pit powder, 0.01~
0.05 parts by weight poly-aspartate, 2~5 parts by weight sorbierites, 2~5 parts by weight hydroxylapatite powders and 5~10 weight parts of fine coal
Ash.
The beneficial effects of the present invention are：Using a variety of discarded objects as raw material, the manufacturing has been saved into cost, " has been become simultaneously
Waste be changed into values, with pollution treatment of giving up ", there is good economy and environmental benefit；Micro content is high, suitable for the suction to various heavy
Attached, absorption property is strong.The present invention program carries out physical enrichment absorption by the shellfish material heavy metal ion with microcellular structure
A variety of things such as the heavy metal ion such as effect, sorbierite is chelated and the heavy metal ion such as hydroxylapatite powder swaps
The reparation of the cooperative achievement heavy-metal contaminated soil of Physicochemical restorative procedure, and at the same time, it is a variety of to provide calcium etc. for soil
Nutrient, improve the remediation efficiency and repairing effect of heavy metal contaminated soil；Micro poly-aspartate dispersant is with the addition of, is kept away
Soil hardening and then lifting repairing effect after being excused from a college course again.
Present invention additionally comprises a kind of application of above-mentioned heavy-metal contaminated soil renovation agent, the heavy-metal contaminated soil reparation
Agent is applied to restoration of soil polluted by heavy metal.
The beneficial effects of the present invention are：The present invention program is applicable to the reparation of various heavy contaminated soil, is applicable
Scope is wide, practical；All components are the species of safety and environmental protection, and repair process is without the energy consumption steps such as heating, energy-saving ring
Protect.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, it is explained below in conjunction with embodiment.
The design of most critical of the present invention is：With oyster shell powder, tea seed episperm powder, agricultural crop straw powder, almond powder, plum pit
A variety of bio-wastes such as powder are that raw material prepares heavy-metal contaminated soil renovation agent, economic and environment-friendly；Shellfish material with microcellular structure
The heavy metal ions such as the suction-operated of material heavy metal ion progress physical enrichment, sorbierite are chelated and hydroxylapatite powder
Etc. the reparation for the cooperative achievement heavy-metal contaminated soil that heavy metal ion such as swaps at a variety of physical chemistry restorative procedures, repair
Multiple effect is good and remediation efficiency is high.
The present invention provides a kind of heavy-metal contaminated soil renovation agent, including 15~40 parts by weight oyster shell powders, 5~15 weights
Measure part lotus leaf powder, 5~15 parts by weight bracketplant powder, 10~30 parts by weight tea seed episperm powder, 5~10 parts by weight agricultural crop straw powder, 5
~10 parts by weight almond powder, 5~10 parts by weight plum pit powder, 0.01~0.05 parts by weight poly-aspartate, 2~5 parts by weight sorbs
Alcohol, 2~5 parts by weight hydroxylapatite powders and 5~10 weight parts of fine coal ash.
It was found from foregoing description, the beneficial effects of the present invention are：Using a variety of discarded objects as raw material, the manufacturing has been saved
Into cost, " turn waste into wealth, with pollution treatment of giving up " simultaneously, there is good economy and environmental benefit；Micro content is high, suitable for more
The absorption of heavy metal species, absorption property are strong.The present invention program is carried out by the shellfish material heavy metal ion with microcellular structure
The heavy metal ion such as physical enrichment suction-operated, sorbierite is chelated and the heavy metal ion such as hydroxylapatite powder is carried out
The reparation of the cooperative achievement heavy-metal contaminated soils of a variety of physical chemistry restorative procedures such as exchange, and at the same time, carried for soil
A variety of nutrients such as calcium have been supplied, have improved the remediation efficiency and repairing effect of heavy metal contaminated soil；It with the addition of micro poly- asparagus fern
Propylhomoserin dispersant, avoid the soil hardening after repairing and then lift repairing effect.
Preferably, a kind of heavy-metal contaminated soil renovation agent, including 25~40 parts by weight oyster shell powders, 5~10 parts by weight
Lotus leaf powder, 5~10 parts by weight bracketplant powder, 15~20 parts by weight tea seed episperm powder, 5~8 parts by weight agricultural crop straw powder, 6~9 weights
Measure part almond powder, 5~7 parts by weight plum pit powder, 0.02~0.04 parts by weight poly-aspartate, 2~3 parts by weight sorbierites, 2~4
Parts by weight hydroxylapatite powder and 8~10 weight parts of fine coal ash.
It was found from foregoing description, the beneficial effects of the present invention are：Optimize the parameter of each component, ensure and preferably repair effect
Fruit.
Preferably, the weight ratio of the oyster shell powder and the tea seed episperm powder is 1~4：1.
Further, the agricultural crop straw powder includes reed straw powder, cattail stalk powder, corn stalk powder
One or more in end, wheat stalk powder or broomcorn straw powder.
It was found from foregoing description, the beneficial effects of the present invention are：The agricultural crop straw heavy metal ion such as cattail has
Exchange and complexing, while add stalk can also strengthen repair after soil fertility.
Preferably, the agricultural crop straw powder comprises at least cattail stalk powder.
It was found from foregoing description, the beneficial effects of the present invention are：Cattail stalk except heavy metal there is exchange can be complexed
Effect is outer also to have the effect of enrichment, is advantageous to lift repairing effect.
Further, the mass ratio of the oyster shell powder and the poly-aspartate is 1000~2000：1.
It was found from foregoing description, the beneficial effects of the present invention are：The addition of poly-aspartate is reduced, avoids poly- asparagus fern
Propylhomoserin influences the repair of heavy metal ion.
Preferably, the various component particles sizes in the heavy-metal contaminated soil renovation agent are at least 50 mesh.
Present invention additionally comprises a kind of application of above-mentioned heavy-metal contaminated soil renovation agent, the heavy-metal contaminated soil reparation
Agent is applied to restoration of soil polluted by heavy metal.
It was found from foregoing description, the beneficial effects of the present invention are：The present invention program is applicable to various heavy pollution
The reparation of soil, it is applied widely, it is practical；All components are the species of safety and environmental protection, and repair process is without heating etc.
Energy consumption step, energy-conserving and environment-protective.
Further, the heavy-metal contaminated soil includes one or more of heavy metal pollutions in Cr, Cu, Pb, Cd
Soil.
It was found from foregoing description, the beneficial effects of the present invention are：The heavy-metal contaminated soil renovation agent of the present invention program
There is more excellent repairing effect to Cr/Cu/Pb/Cd contaminated soils.
Further, the heavy-metal contaminated soil renovation agent is applied to restoration of soil polluted by heavy metal, including following step
Suddenly：Heavy-metal contaminated soil renovation agent is added in soil to be repaired by every mu of 300~600kg, is adding soil remediation
Watered in 1~3 before agent, and do not watered in 2 days after soil-repairing agent is added.
It was found from foregoing description, the beneficial effects of the present invention are：Repair time is short, can complete soil in 2 days substantially
Repair.
Embodiments of the invention one are：A kind of heavy-metal contaminated soil renovation agent, including 15 parts by weight oyster shell powders, 15 weights
Measure part lotus leaf powder, 15 parts by weight bracketplant powder, 15 parts by weight tea seed episperm powder, 10 parts by weight agricultural crop straw powder, 10 parts by weight apricots
Core powder, 10 parts by weight plum pit powder, 0.015 parts by weight poly-aspartate, 5 parts by weight sorbierites, 5 parts by weight hydroxylapatite powders
With 5 weight parts of fine coal ash.It is 3 that the agricultural crop straw powder, which includes weight ratio,：2 cattail stalk powder and corn stalk powder
End.
The heavy-metal contaminated soil renovation agent is applied to repair by the serious contaminated soils of Cr and Cu, by heavy metal pollution
Soil-repairing agent is added to by every mu of 600kg in soil to be repaired, 3 before soil-repairing agent is added in carry out watering and make soil
Moisture state is kept, and is not watered in 2 days after soil-repairing agent is added, Cr the and Cu contents before and after measure is repaired in soil,
The present invention is calculated to Cr adsorption rate up to 96.22%, to Cu adsorption rate up to 97.83%.
Embodiments of the invention two are：A kind of heavy-metal contaminated soil renovation agent, including 40 parts by weight oyster shell powders, 10 weights
Measure part lotus leaf powder, 10 parts by weight bracketplant powder, 20 parts by weight tea seed episperm powder, 8 parts by weight agricultural crop straw powder, 8 parts by weight almonds
Powder, 6 parts by weight plum pit powder, 0.05 parts by weight poly-aspartate, 3 parts by weight sorbierites, 4 parts by weight hydroxylapatite powders and 10 weights
Measure part flyash.
The heavy-metal contaminated soil renovation agent is applied to repair by the serious contaminated soil of Cd, Pb and Cu, by heavy metal
Contaminated soil remediation agent is added to by every mu of 400kg in soil to be repaired, 3 before soil-repairing agent is added in carry out watering and make
Soil conservation moisture state, and not watered in 2 days after soil-repairing agent is added, Cd, Pb before and after measure is repaired in soil and
Cu contents, the present invention is calculated to Cd adsorption rate up to 95.37%, to Cu adsorption rate up to 97.02%, to Pb adsorption rate
Up to 97.48%.
Embodiments of the invention three are：A kind of heavy-metal contaminated soil renovation agent, including 25 parts by weight oyster shell powders, 15 weights
Measure part lotus leaf powder, 10 parts by weight bracketplant powder, 25 parts by weight tea seed episperm powder, 8 parts by weight agricultural crop straw powder, 7 parts by weight almonds
Powder, 6 parts by weight plum pit powder, 0.02 parts by weight poly-aspartate, 3 parts by weight sorbierites, 4 parts by weight hydroxylapatite powders and 10 weights
Measure part flyash.
The heavy-metal contaminated soil renovation agent is applied to repair by the serious contaminated soils of Cd and Pb, by heavy metal pollution
Soil-repairing agent is added to by every mu of 300kg in soil to be repaired, 3 before soil-repairing agent is added in carry out watering and make soil
Moisture state is kept, and is not watered in 2 days after soil-repairing agent is added, Cd the and Pb contents before and after measure is repaired in soil,
The present invention is calculated to Cd adsorption rate up to 96.44%, to Pb adsorption rate up to 95.84%.
It is from the foregoing, it will be observed that reachable to Cd/Pb/Cu/Cr adsorption rate using the heavy-metal contaminated soil renovation agent of the present invention
More than 95%.
In summary, the present invention provides a kind of heavy-metal contaminated soil renovation agent and its application, and the renovation agent is with a variety of useless
Gurry is raw material, has saved the manufacturing into cost, " has turned waste into wealth, with pollution treatment of giving up " simultaneously, have good economy and environment
Benefit；Micro content is high, strong suitable for the absorption to various heavy, absorption property.The present invention program passes through band microcellular structure
Shellfish material heavy metal ion carry out the heavy metal ions such as physical enrichment suction-operated, sorbierite and chelated and hydroxyl
The heavy metal ion such as floats such as swaps at the cooperative achievement heavy-metal contaminated soil of a variety of physical chemistry restorative procedures
Reparation, and at the same time, a variety of nutrients such as calcium are provided for soil, improve heavy metal contaminated soil remediation efficiency and
Repairing effect；Micro poly-aspartate dispersant is with the addition of, the soil hardening after repairing is avoided and then lifts repairing effect.This hair
Bright scheme is applicable to the reparation of various heavy contaminated soil, applied widely, practical；All components are safety collar
The species of guarantor, repair process is without the energy consumption steps such as heating, energy-conserving and environment-protective.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright description is made, or the technical field of correlation is directly or indirectly used in, similarly it is included in this hair
In bright scope of patent protection.
Claims (10)
- A kind of 1. heavy-metal contaminated soil renovation agent, it is characterised in that：Including 15~40 parts by weight oyster shell powders, 5~15 weight Part lotus leaf powder, 5~15 parts by weight bracketplant powder, 10~30 parts by weight tea seed episperm powder, 5~10 parts by weight agricultural crop straw powder, 5~ 10 parts by weight almond powder, 5~10 parts by weight plum pit powder, 0.01~0.05 parts by weight poly-aspartate, 2~5 parts by weight sorbierites, 2~5 parts by weight hydroxylapatite powders and 5~10 weight parts of fine coal ash.
- 2. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：Including 25~40 parts by weight oysters Shell powder, 5~10 parts by weight lotus leaf powders, 5~10 parts by weight bracketplant powder, 15~20 parts by weight tea seed episperm powder, 5~8 parts by weight farmings Thing stalk powder, 6~9 parts by weight almond powder, 5~7 parts by weight plum pit powder, 0.02~0.04 parts by weight poly-aspartate, 2~3 Parts by weight sorbierite, 2~4 parts by weight hydroxylapatite powders and 8~10 weight parts of fine coal ash.
- 3. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：The oyster shell powder and the tea The weight ratio of seed shell powder is 1~4：1.
- 4. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：The agricultural crop straw powder bag Include reed straw powder, cattail stalk powder, maize straw powder, wheat stalk powder or one kind in broomcorn straw powder or It is several.
- 5. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：The agricultural crop straw powder is extremely Include cattail stalk powder less.
- 6. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：The oyster shell powder gathers with described The mass ratio of aspartic acid is 1000~2000：1.
- 7. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that：The heavy-metal contaminated soil is repaiied Various component particles sizes in multiple agent are at least 50 mesh.
- A kind of 8. application of heavy-metal contaminated soil renovation agent as described in any one of claim 1~7, it is characterised in that：Institute State heavy-metal contaminated soil renovation agent and be applied to restoration of soil polluted by heavy metal.
- 9. the application of the heavy-metal contaminated soil renovation agent according to claim 8, it is characterised in that：The heavy metal Contaminated soil includes the soil of one or more of heavy metal pollutions in Cr, Cu, Pb, Cd.
- 10. the application of the heavy-metal contaminated soil renovation agent according to claim 8, it is characterised in that：The huge sum of money Category contaminated soil remediation agent is applied to restoration of soil polluted by heavy metal, comprises the following steps：By heavy-metal contaminated soil renovation agent Be added to by every mu of 300~600kg in soil to be repaired, 1~3 before soil-repairing agent is added in watered, and adding Do not watered in 2 days after entering soil-repairing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710710037.7A CN107649510A (en) | 2017-08-18 | 2017-08-18 | A kind of heavy-metal contaminated soil renovation agent and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710710037.7A CN107649510A (en) | 2017-08-18 | 2017-08-18 | A kind of heavy-metal contaminated soil renovation agent and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107649510A true CN107649510A (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710710037.7A Withdrawn CN107649510A (en) | 2017-08-18 | 2017-08-18 | A kind of heavy-metal contaminated soil renovation agent and its application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857674A (en) * | 2017-11-07 | 2018-03-30 | 厦门康浩生态农业有限公司 | Oyster shell soil-repairing agent and preparation method thereof |
| CN108496615A (en) * | 2018-02-12 | 2018-09-07 | 中国科学院南京土壤研究所 | A kind of blade face barrier and its preparation method and application |
| CN108889773A (en) * | 2018-05-29 | 2018-11-27 | 深圳文科园林股份有限公司 | A kind of cadmium pollution mine soil renovation agent and preparation and application method |
| CN112591843A (en) * | 2020-12-26 | 2021-04-02 | 昆明理工大学 | Method for treating heavy metal-containing acidic wastewater by using waste |
-
2017
- 2017-08-18 CN CN201710710037.7A patent/CN107649510A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857674A (en) * | 2017-11-07 | 2018-03-30 | 厦门康浩生态农业有限公司 | Oyster shell soil-repairing agent and preparation method thereof |
| CN108496615A (en) * | 2018-02-12 | 2018-09-07 | 中国科学院南京土壤研究所 | A kind of blade face barrier and its preparation method and application |
| CN108496615B (en) * | 2018-02-12 | 2020-03-31 | 中国科学院南京土壤研究所 | Foliar blocking agent and preparation method and application thereof |
| CN108889773A (en) * | 2018-05-29 | 2018-11-27 | 深圳文科园林股份有限公司 | A kind of cadmium pollution mine soil renovation agent and preparation and application method |
| CN112591843A (en) * | 2020-12-26 | 2021-04-02 | 昆明理工大学 | Method for treating heavy metal-containing acidic wastewater by using waste |
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Application publication date: 20180202 |