CN107641512A - Cd Pollution in Soil renovation agent - Google Patents
Cd Pollution in Soil renovation agent Download PDFInfo
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- CN107641512A CN107641512A CN201610594069.0A CN201610594069A CN107641512A CN 107641512 A CN107641512 A CN 107641512A CN 201610594069 A CN201610594069 A CN 201610594069A CN 107641512 A CN107641512 A CN 107641512A
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- heavy metal
- soil
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- high molecular
- molecular polymer
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Abstract
The present invention, which provides a kind of Cd Pollution in Soil renovation agent, includes high molecular polymer and filler, high molecular polymer can form stable chelate with heavy metal ion, effectively the free heavy metal ion in soil is adsorbed and fixed, reduce heavy metal activity, prevent crop from absorbing, and its migration is controlled by the suction-operated of filler；The mass ratio of high molecular polymer and filler is (2 4):(20‑40).The preparation method of heavy metal-polluted soil renovation agent of the present invention is simple to operate, is adapted to industrialized production.Result of the test shows that heavy metal-polluted soil renovation agent of the present invention can reduce heavy metal-polluted soil activity, improve soil physical and chemical property, reduce soil aciditiy, culture fertility, promote paddy growth, improve rice yield and reduce the content of cadmium heavy metal in rice, ensure that the cadmium amount in rice reaches below safety value 0.2mg/kg.
Description
Technical field
The present invention relates to a kind of heavy metal pollution of soil recovery technique, belong to environmental technology field.
Background technology
Farmland soil heavy metals pollute, and particularly Cd enrichment pollutions are on the rise, and greatly affect Rice Cropping industry
Sustainable development.Zhang Liangyun takes 70 at random to peasant household of the rice producing region such as China Jiangxi, Hunan, Anhui and Guangdong partial contamination area
Part rice sample measure shows that more than 70% test sample Cd contents exceed national food hygienic standard value (0.20mg/kg).
More seriously, rice has a large amount of characteristics for inhaling Cd, and brown rice testing result amount containing Cd exceedes sanitary standard several times, even
More than 10 times..
The content of the invention
A kind of Cd Pollution in Soil renovation agent of offer of the present invention, effectively fixes heavy metal in soil ionic adsorption, controls
It is migrated, and is prevented crop from absorbing heavy metal ion and is reduced into lower valency ion, so as to reduce its toxicity.
The technical scheme is that：A kind of Cd Pollution in Soil renovation agent includes high molecular polymer and filler, macromolecule
Polymer can form stable chelate with heavy metal ion, effectively adsorb the free heavy metal ion in soil and fix,
Heavy metal activity is reduced, prevents crop from absorbing, and its migration is controlled by the suction-operated of filler；High molecular polymer and filler
Mass ratio be (2-4):(20-40).
Further, heavy metal-polluted soil renovation agent of the present invention also includes macronutrient fertilizer, middle amount nutrient
One or more in fertilizer, micronutrient fertiliser, microbial activator, soil can be prevented with the acidity of sweetening of the soil
Middle heavy metal ion releasing, while the nutrition of crop needs is supplemented, activating soil prevents hardened；The high molecular polymer is with filling out
Material, macronutrient fertilizer, middle amount nutrient fertilizer, micronutrient fertiliser, the quality of activation of microorganism agent fertilizer
Than for (2-4):(20-40)：(15-45):(15-45):(3-9):(2-4).
The preparation method of heavy metal-polluted soil renovation agent of the present invention is simple to operate, is adapted to industrialized production.Result of the test is shown
Heavy metal-polluted soil renovation agent of the present invention can reduce heavy metal-polluted soil activity, improve soil physical and chemical property, reduce soil aciditiy,
Culture fertility, promote paddy growth, improve rice yield and reduce the content of cadmium heavy metal in rice, ensure the cadmium amount in rice
Reach below safety value 0.2mg/kg.
Embodiment
Further to illustrate the present invention, below in conjunction with preferred embodiment, the present invention is described in further details.
Embodiment 1
A kind of Cd Pollution in Soil renovation agent includes high molecular polymer and filler, high molecular polymer energy and heavy metal ion
Stable chelate is formed, effectively the free heavy metal ion in soil is adsorbed and fixed, reduces heavy metal activity, prevents to make
Thing absorbs, and controls its migration by the suction-operated of filler；The mass ratio of high molecular polymer and filler is 3:30.
Embodiment 2
A kind of Cd Pollution in Soil renovation agent includes high molecular polymer and filler, high molecular polymer energy and heavy metal ion
Stable chelate is formed, effectively the free heavy metal ion in soil is adsorbed and fixed, reduces heavy metal activity, prevents to make
Thing absorbs, and controls its migration by the suction-operated of filler；The mass ratio of high molecular polymer and filler is 2:20.
Embodiment 3
A kind of Cd Pollution in Soil renovation agent includes high molecular polymer and filler, high molecular polymer energy and heavy metal ion
Stable chelate is formed, effectively the free heavy metal ion in soil is adsorbed and fixed, reduces heavy metal activity, prevents to make
Thing absorbs, and controls its migration by the suction-operated of filler；The mass ratio of high molecular polymer and filler is 4:40.
Embodiment 4
A kind of Cd Pollution in Soil renovation agent includes macronutrient fertilizer, middle amount nutrient fertilizer, micronutrient member
One or more in fertilizer, microbial activator, it can prevent heavy metal in soil ion from analysing with the acidity of sweetening of the soil
Go out, while supplement the nutrition of crop needs, activating soil prevents hardened；The high molecular polymer and filler, a large amount of nutrition member
Fertilizer, middle amount nutrient fertilizer, micronutrient fertiliser, the mass ratio of activation of microorganism agent fertilizer are 2：20：15:
15:5:2。
Claims (2)
1. a kind of Cd Pollution in Soil renovation agent, it is characterised in that including high molecular polymer and filler, high molecular polymer can be with
Heavy metal ion forms stable chelate, effectively adsorbs the free heavy metal ion in soil and fixes, reduces heavy metal
Activity, prevent crop from absorbing, and its migration is controlled by the suction-operated of filler；The mass ratio of high molecular polymer and filler is
(2-4):(20-40)。
A kind of 2. according to claim 1, Cd Pollution in Soil renovation agent, it is characterised in that including macronutrient fertilizer,
One or more in middle amount nutrient fertilizer, micronutrient fertiliser, microbial activator, can be with the acid of sweetening of the soil
Property, heavy metal in soil elemental release is prevented, while the nutrition of crop needs is supplemented, activating soil prevents hardened；The high score
Sub- polymer and filler, macronutrient fertilizer, middle amount nutrient fertilizer, micronutrient fertiliser, activation of microorganism
The mass ratio of agent fertilizer is (2-4):(20-40)：(15-45):(15-45):(3-9):(2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594069.0A CN107641512A (en) | 2016-07-21 | 2016-07-21 | Cd Pollution in Soil renovation agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594069.0A CN107641512A (en) | 2016-07-21 | 2016-07-21 | Cd Pollution in Soil renovation agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107641512A true CN107641512A (en) | 2018-01-30 |
Family
ID=61110000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610594069.0A Withdrawn CN107641512A (en) | 2016-07-21 | 2016-07-21 | Cd Pollution in Soil renovation agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107641512A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531551A (en) * | 2014-11-24 | 2015-04-22 | 苏州嘉禧萝生物科技有限公司 | Cadmium contaminated soil microbe repairing agent and application thereof |
| CN104560049A (en) * | 2015-02-09 | 2015-04-29 | 湖南神隆超级稻丰产工程有限公司 | Soil heavy metal repairing agent |
| CN105713616A (en) * | 2016-02-04 | 2016-06-29 | 周益辉 | Cadmium contaminated soil restoring agent and using method and application thereof |
-
2016
- 2016-07-21 CN CN201610594069.0A patent/CN107641512A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531551A (en) * | 2014-11-24 | 2015-04-22 | 苏州嘉禧萝生物科技有限公司 | Cadmium contaminated soil microbe repairing agent and application thereof |
| CN104560049A (en) * | 2015-02-09 | 2015-04-29 | 湖南神隆超级稻丰产工程有限公司 | Soil heavy metal repairing agent |
| CN105713616A (en) * | 2016-02-04 | 2016-06-29 | 周益辉 | Cadmium contaminated soil restoring agent and using method and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180130 |
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| WW01 | Invention patent application withdrawn after publication |