CN104861983B - A kind of agricultural land soil conditioner and preparation method thereof - Google Patents
A kind of agricultural land soil conditioner and preparation method thereof Download PDFInfo
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- CN104861983B CN104861983B CN201510229828.9A CN201510229828A CN104861983B CN 104861983 B CN104861983 B CN 104861983B CN 201510229828 A CN201510229828 A CN 201510229828A CN 104861983 B CN104861983 B CN 104861983B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention belongs to agricultural environment child care and recovery technique field, specifically discloses a kind of agricultural land soil conditioner and preparation method thereof.The present invention mixes in proportion raw material quick lime, bentonite, zeolite and the sepiolite handled well, produces product.The conditioning agent prescription of the present invention is reasonable, it is easy to implement the method, it is simple to operate, have the multiple functions such as repairing heavy metal in soil pollution and regulation and control soil acidity or alkalinity concurrently, the available Cd in polluted agricultural land, lead is have dropped 24.1% 35.1% respectively, 28.7% 44.8%, cadmium, lead content in rice is have dropped 34.9% 44.7% respectively simultaneously, 32.3% 46.1%, soil pH improves 0.20 0.31.Suitable for the various contaminated by heavy metals and serious agricultural land soil of soil acidification.
Description
Technical field
The present invention relates to agricultural environment child care and recovery technique field, and in particular to a kind of agricultural land soil conditioner, simultaneously
A kind of preparation method of above-mentioned agricultural land soil conditioner is further related to, the conditioner is applied to various contaminated by heavy metals and soil
It is acidified serious agricultural land soil.
Background technology
With modern science and technology and economic fast development, the discharge of Industrial " three Waste ", sewage irrigation, agricultural sludge, agricultural chemicals
With the long-term unreasonable administration of chemical fertilizer, cause farmland soil heavy metals to pollute, and turn into a problem by extensive concern.Soil
In heavy metal food chain can be entered by plant absorption, and then health is constituted a serious threat.According to national soil pollution
Investigation publication show that soil total exceeding standard rate in China's is 16.1%, wherein slightly, slightly, moderate and serious pollution point position ratio
Respectively 11.2%, 2.3%, 1.5% and 1.1%.China arable soil point position exceeding standard rate be 19.4%, wherein slightly, slightly,
Moderate and serious pollution point position ratio are respectively 13.7%, 2.8%, 1.8% and 1.1%, and major pollutants are cadmium, nickel, copper, lead
Deng heavy metal.This has seriously affected farmland quality, food security or even the health of the mankind and the stabilization of society.
At present, the recovery technique of heavy-metal contaminated soil mainly includes：(1) engineering reparation, as soil moved in improve the original, soil removal and replacement and deep ploughing are turned over
Soil etc., the method quantities is big, and investment cost is high, is not suitable for the improvement of pollution in wide area soil；(2) peripheral doses, it is such as electronic
Reparation and electric heating reparation, the soil remediation positive effect small to pollution weight, area, but easily cause soil texture destruction and fertility
Decline, be unsuitable for the reparation of agricultural land soil；(3) it is biological prosthetic, such as microorganism remediation and phytoremediation, wherein microorganism remediation skill
Art is also limited to scientific research and laboratory level, and application example is few, and the phytoremediation cycle is grown, and influences farming work, therefore difficult
Used with large area in being polluted in farmland soil heavy metals；(4) chemical remediation, such as chemical leaching, chemical passivation.Chemical passivation
Reparation is to add conditioner into soil to change the physics of soil, chemical property, by the absorption of its heavy metal, precipitation, from
The effects such as son exchanges, complexing, change existence of the heavy metal in soil, reduce its bioactivity.Skill is repaired in chemical passivation
Art is so that its cost is cheap, reparation is quick, simple operation and other advantages are taken seriously, suitable for repairing for large area heavy-metal contaminated soil
It is multiple.
The conditioner of conventional chemical passivation recovery technique includes basic matterial, phosphorated material, rich in iron and manganese oxides
Mineral and organic materials etc..But conventional conditioner has respective limitation, is in as chronic administration phosphorated material can make soil
Strong basicity simultaneously induces body eutrophication；Fe, Mn couple be present because cost is of a relatively high in the mineral rich in iron and manganese oxides
Crop poisons risk；Organic materials can reduce the validity of heavy metal in firm apply to soil, but with the ore deposit of organic matter
Change and decompose, it is possible to cause adsorbed heavy metal ion to discharge again.
The content of the invention
For the deficiencies in the prior art, the purpose of the present invention is to be the provision of a kind of agricultural land soil conditioner.
It is made up by a certain percentage of four kinds of quick lime, bentonite, zeolite, sepiolite raw materials, the conditioner be by change soil pH,
Increasing the approach such as adsorption by soil site, antagonism of ions reduces bioavailability of heavy metals.It can be widely applied to various by heavy metal
The agricultural land soil of pollution, especially southern acid agricultural land soil.
Conditioner the advantages of combining various conventional conditioners of the present invention, rich in a variety of reparative factors, have it is quick and
Continual and steady notable repairing effect, the raw material sources of conditioner are extensive, and cost is cheap, environment-friendly, non-secondary pollution, are easy to
It is widely applied.
Another object of the present invention is to be the provision of a kind of preparation method of agricultural land soil conditioner, simple to operate,
It is easy to implement the method.
In order to realize foregoing invention purpose, present invention employs following technical measures：
A kind of agricultural land soil conditioner, it is made up of four kinds of following raw materials of percentage by weight：
A kind of agricultural land soil conditioner, it is made up (preferred scope) of four kinds of following raw materials of percentage by weight：
A kind of agricultural land soil conditioner, it is made up (optimum proportioning) of four kinds of following raw materials of percentage by weight：
The quick lime is the powder that 60-140 mesh sieves are crossed after the calcining of lime stone raw ore is crushed；
The bentonite is the powder that raw ore of calcium base bentonite is air-dried to mistake 60-140 mesh sieves after crushing；
The zeolite is the powder that zeolite raw ore is air-dried to mistake 60-140 mesh sieves after crushing；
The sepiolite is the powder that sepiolite raw ore is air-dried to mistake 60-140 mesh sieves after crushing；
A kind of preparation method of agricultural land soil conditioner, it comprises the following steps：
A. prepared by raw material quick lime：From lime stone raw ore, 60-140 mesh sieves are crossed in calcining after crushing, standby.
B. prepared by raw material bentonite：From raw ore of calcium base bentonite, air-dry and 60-140 mesh sieves are crossed after crushing, it is standby.
C. prepared by raw material zeolite：From zeolite raw ore, air-dry and 60-140 mesh sieves are crossed after crushing, it is standby.
D. prepared by raw material sepiolite：From sepiolite raw ore, air-dry and 60-140 mesh sieves are crossed after crushing, it is standby.
E. step A, B, C, D raw material prepared are mixed in proportion, obtains a kind of agricultural land soil conditioning of the present invention
Agent.
Compared with prior art, the advantages of the present invention are：
A. the method is mainly characterized in that the adjustable soil pH of reasonable disposition, increase adsorption by soil site, forming ion
The raw material of antagonism, product is set to reduce Study on Availability Control of Heavy Metals in Soil from multi-angle.Pilot plant test and Demonstration And Extension knot
Fruit shows：After this product, the content of beary metal such as cadmium, lead in agricultural product meets《National food safety standard》.
B. the present invention not only has the function of in-situ passivation soil metal, and can also greatly improve soil pH
Value, promote soil granular structure to be formed, the permeability of enhancing soil, have concurrently and repair acidified soil, improve soil tillage quality etc.
Function, it is a kind of broad spectrum type, multi-functional environment-friendly products suitable for the soil of various soil parent materials development.
C. raw material sources of the invention are extensive, and preparation method is simple, easy, easy to use, and popularizing application prospect is wide.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiment, but is not to the claims in the present invention
The limitation of scope is claimed in book, the equivalent substitution of all any this areas made according to the disclosure of invention, belongs to this
The protection domain of invention.
In example 1 below -10, raw material quick lime is crossed 80 mesh sieves after being crushed by the calcining of lime stone raw ore and is prepared,
The raw material quick lime is provided by Lime Factory of xiangtan, hunan province county, wherein CaO mass percentage content >=75%；
In example 1 below -10, raw material bentonite, zeolite, sepiolite are to cross 80 mesh after its corresponding raw ore air-dries crushing
Sieve is prepared；These three raw ores provide by Ningxiang County mineral powder factory of Hunan Province.
Embodiment 1：A kind of agricultural land soil conditioner, it is made up of four kinds of following raw materials of percentage by weight：
A kind of preparation method of agricultural land soil conditioner, its step are：By raw material quick lime, bentonite, zeolite and Hai Pao
Stone mixes in proportion, and produces product, and it is a kind of agricultural land soil conditioner for reducing heavy metals in farmland pollution.
Embodiment 2- embodiments 10：A kind of agricultural land soil conditioner, it is made up of four kinds of following raw materials of percentage by weight：
| Embodiment | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Quick lime | 40% | 40% | 45% | 45% | 50% | 55% | 55% | 60% | 60% |
| Bentonite | 20% | 20% | 20% | 15% | 20% | 25% | 20% | 5% | 15% |
| Zeolite | 25% | 20% | 25% | 25% | 10% | 15% | 20% | 25% | 10% |
| Sepiolite | 15% | 20% | 10% | 15% | 20% | 5% | 5% | 10% | 15% |
Its preparation methods steps are same as Example 1.
The pilot plant test of above-mentioned agricultural land soil conditioner is as described below：
During 2014, Field trial experiment has been carried out in ChangSha, Hunan Province county crossing town and gold township of Wangcheng area two places.
Above-mentioned two places are that pilot is repaired in Chang-Zhu-Tan Delta Region key area heavy metal pollution arable land.
A. test process
Any conditioner (i.e. CK) and every mu of administration 120, the 160kg product of the embodiment of the present invention 1 (FM) three are not applied in setting
Individual processing, is repeated three times, random district's groups arrangement.Each processing Monitoring of Paddy Rice Plant Area is 20m2(4m × 5m), used between each processing
The ridge (buried depth 0.3m) of thick plastic film parcel wide 0.2m separates.Fertilization Level and other field management measures, each processing
It is completely the same.
B. for examination crop varieties
Each processing is unified to account for rice (late rice) from the excellent China in day
C. application process
Applied before turning over together with base fertilizer.
D. see (inspection) and survey project
Detect soil available cadmium, lead content during rice harves, cadmium, lead content in agricultural product, soil pH value.
E. main result
As a result show, using the product of the embodiment of the present invention 1, make the available Cd in the polluted farmland soil of Changsha County crossing town
24.1%, 27.0% is have dropped respectively, and lead have dropped 28.7%, 40.4% respectively, the cadmium content in rice is declined respectively
34.9%th, 41.3%, lead content have dropped 32.3%, 46.1% respectively, soil pH has been respectively increased 0.23,0.31.
Using the product of the embodiment of the present invention 1, the available Cd in gold township of Wangcheng area polluted farmland soil is set to decline respectively
27.8%, 35.1%, lead have dropped 34.1%, 44.8% respectively, the cadmium content in rice is respectively have dropped 36.2%,
44.7%, lead content have dropped 36.1%, 43.6% respectively, soil pH is improved 0.20,0.29.
The drop cadmium effect that the product of subordinate list -1 is applied on rice
The drop lead effect that the product of subordinate list -2 is applied on rice
The product of subordinate list -3 increases the effect of soil pH value
Claims (4)
1. a kind of agricultural land soil conditioner, it is characterised in that it is made up of four kinds of following raw materials of percentage by weight：
Raw material weight percentage（%）
Quick lime 40-60,
Bentonite 5-25,
Zeolite 10-25,
Sepiolite 5-20；
The quick lime is the powder that 60-140 mesh sieves are crossed after the calcining of lime stone raw ore is crushed；
The bentonite is the powder that raw ore of calcium base bentonite is air-dried to mistake 60-140 mesh sieves after crushing；
The zeolite is the powder that zeolite raw ore is air-dried to mistake 60-140 mesh sieves after crushing；
The sepiolite is the powder that sepiolite raw ore is air-dried to mistake 60-140 mesh sieves after crushing.
2. agricultural land soil conditioner according to claim 1, it is characterised in that it is by four kinds of following originals of percentage by weight
Material is made：
Raw material weight percentage（%）
Quick lime 45-55,
Bentonite 10-20,
Zeolite 15-25,
Sepiolite 5-15.
3. agricultural land soil conditioner according to claim 1, it is characterised in that it is by four kinds of following originals of percentage by weight
Material is made：
Raw material weight percentage（%）
Quick lime 50,
Bentonite 15,
Zeolite 20,
Sepiolite 15.
4. the preparation method of any described agricultural land soil conditioner, its step are as follows in a kind of claim 1-3：
Raw material quick lime, bentonite, zeolite and sepiolite are mixed in proportion.
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| CN104861983B true CN104861983B (en) | 2017-12-26 |
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| CN105524619A (en) * | 2015-12-16 | 2016-04-27 | 江苏盖亚环境工程有限公司 | Acid soil amendment and preparation method thereof |
| CN106967441A (en) * | 2017-04-21 | 2017-07-21 | 航天凯天环保科技股份有限公司 | A kind of farmland cadmium pollution soil renovation agent and its preparation method and application |
| CN106944472A (en) * | 2017-04-21 | 2017-07-14 | 航天凯天环保科技股份有限公司 | A kind of paddy field cadmium pollution soil renovation agent and its preparation method and application |
| CN107090297A (en) * | 2017-04-21 | 2017-08-25 | 航天凯天环保科技股份有限公司 | A kind of heavy metal polluted soil of farmland renovation agent and its preparation method and application |
| CN107573135B (en) * | 2017-08-21 | 2021-03-12 | 河南心连心化学工业集团股份有限公司 | Multifunctional acidic farmland conditioner and preparation method thereof |
| CN107903902A (en) * | 2017-11-22 | 2018-04-13 | 格丰科技材料有限公司 | One kind is used for agricultural land soil removing heavy metals soil conditioner and preparation method thereof |
| CN110153168A (en) * | 2018-03-05 | 2019-08-23 | 苏州睿烁环境科技有限公司 | A kind of renovation agent of heavy-metal contaminated soil and preparation method thereof |
| CN108795430A (en) * | 2018-05-22 | 2018-11-13 | 北京市农林科学院 | A kind of renovation agent and soil remediation method of cadmium pollution soil |
| CN109530414B (en) * | 2018-11-09 | 2021-05-04 | 中国科学院广州能源研究所 | Method for restoring heavy metals in soil by utilizing compost humic acid |
| CN110591728B (en) * | 2019-10-31 | 2021-03-30 | 环保桥(湖南)生态环境工程股份有限公司 | Conditioner for mercury-polluted soil and preparation method thereof |
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| JP2005255737A (en) * | 2004-03-09 | 2005-09-22 | Sumitomo Osaka Cement Co Ltd | Method for producing heavy metal adsorbent from waste and heavy metal adsorbent obtained by the method |
| JP2006272144A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Heavy metal insolubilizing material and method of treating heavy metal |
| CN102985191B (en) * | 2010-08-10 | 2015-01-07 | 太平洋水泥株式会社 | Method for purifying cadmium-containing paddy soil |
| CN102174326B (en) * | 2011-03-11 | 2012-06-27 | 中国科学院亚热带农业生态研究所 | Heavy metal composite passivating agent used for paddy soil and preparation method thereof |
| CN103663887B (en) * | 2012-09-06 | 2015-07-22 | 郑百祥 | Sludge treatment method and treatment system |
| CN104338742A (en) * | 2013-07-29 | 2015-02-11 | 杨葆华 | Rice field cadmium pollution treatment engineering material ratio and construction method |
| CN104355934A (en) * | 2014-11-04 | 2015-02-18 | 湖南新宇农业科技有限公司 | Secondary element composite fertilizer capable of increasing yield and improving quality and preparation method of secondary element composite fertilizer |
| CN104496639A (en) * | 2014-11-26 | 2015-04-08 | 湖南农业大学 | Paddy rice cadmium-reducing novel carbon-based biological compound fertilizer |
| CN104479683B (en) * | 2014-12-15 | 2016-03-02 | 湖南省土壤肥料研究所 | Can be used for soil conditioner of soil acidification conditioning and cadmium pollution reparation and preparation method thereof |
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Address after: 410205 808, 8th floor, N unit, 4th building, Yuyuan, Lugu, 27 Wenxuan Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Patentee after: Environmental Bridge (Hunan) Eco-environmental Engineering Co., Ltd. Address before: 410205 Room 808, Building C4, Lugu Enterprise Square, 27 Wenxuan Road, Changsha High-tech Zone, Changsha City, Hunan Province Patentee before: Environmental protection bridge (Hunan) ecological restoration Co., Ltd. |