CN102653680B - Heavy metal treating agent for soil - Google Patents
Heavy metal treating agent for soil Download PDFInfo
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- CN102653680B CN102653680B CN201110050130.2A CN201110050130A CN102653680B CN 102653680 B CN102653680 B CN 102653680B CN 201110050130 A CN201110050130 A CN 201110050130A CN 102653680 B CN102653680 B CN 102653680B
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- treating agent
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Abstract
The invention discloses a heavy metal treating agent for soil. The heavy metal treating agent comprises the following components in percentage by weight: 30 to 40 percent of clay minerals, 30 to 40 percent of organic fertilizer, and 20 to 40 percent of algae. In the heavy metal treating agent for soil, the algae is a plant which lives in sea water for a long time, has good adsorption and fixing effect to heavy metals, can quickly adsorb the heavy metals in the soil when entering the soil polluted by heavy metals, and enables the heavy metals to loss bioactivity by combination effect of organic matters in the organic fertilizer, so that absorption of plants and animals to heavy metals can be reduced, beneficial elements in the clay minerals can be replaced through crystal replacement by utilizing the porous property of the clay minerals, and inactivated heavy metal elements can enter the clay minerals to achieve the effect of treating heavy metal polluted soil.
Description
Technical field
The present invention relates to a kind of soil heavy metal treatment agent.
Background technology
Heavy metal refers to that density is greater than 4(g/cm
3) metal, exist mainly with compound form at occurring in nature, along with the exploitation of mankind's heavy metal, smelting, processing and business manufacture, make many heavy metals enter in air, water body or soil as lead, cadmium, mercury etc., cause serious heavy metal contamination.Soil is the important natural resources of human survival and development, and the heavy metal contamination of soil will directly affect the health of the mankind and whole TERRESTRIAL ECOSYSTEMS.Heavy metal contamination is different from Organic pollutants, and heavy metal itself is difficult to be degraded, and easily produces inrichment by plant or animal, and therefore the difficulty of governance of heavy metal pollution of soil is larger.The process of heavy metal pollution of soil conventional at present, adopt Agro-ecological Engineering measure, the soil being subject to heavy metal contamination breeds special plant and microorganism, the heavy metal that the plant special by these and microorganism siphon away or degrade in soil, thus reach the object of purification soil, but this method treatment time is grown, it is slow to take effect, the soil of process can be allowed to lose utility value in a long time.Someone proposes to adopt physics, physical and chemical principle to administer heavy-metal contaminated soil, as isolation method, washing out method, thermal treatment, electrochemical process etc., solution heavy metal pollution of soil problem that can be quick, thorough, stable, but the disposable input of this method is high, and without investment repayment, be difficult to apply in ongoing operations.
Summary of the invention
The object of this invention is to provide a kind of soil heavy metal treatment agent, quick solution heavy metal is to the pollution of soil.
In order to realize above object, the technical solution adopted in the present invention is: a kind of soil heavy metal treatment agent, and the component primarily of following weight percent forms: clay mineral 30-40%, fertilizer 30-40%, marine alga 20-40%.
Soil heavy metal treatment agent of the present invention is pulverized and mixed by each component to make, and applies farmland during use as base fertilizer, mixed, use treatment agent 100-300 kilogram of the present invention according to heavy metal pollution degree every mu by plough, rake and soil.
In soil heavy metal treatment agent of the present invention, marine alga is a class life waterplant in the seawater, heavy metal has good adsorption, entering in the soil by heavy metal contamination, the heavy metal in soil can be adsorbed fast, heavy metal is made to lose biological activity by fertilizer again, reduce the absorption of plant and animal heavy metal, utilize the porosity characteristic of clay mineral, by putting brilliant replacement, the beneficial element in clay mineral is replaced out, the heavy metal element of inactivation is allowed to enter in clay mineral, heavy metal is thoroughly fixedly sealed up for safekeeping, reach the effect reducing heavy metal pollution of soil.Treatment agent of the present invention itself has certain fertility in addition, can substitute a part of fertilizer and secondary and micro-element fertilizers, to the quality and yield successful improving farm crop.
Soil heavy metal treatment agent of the present invention, wherein clay mineral can adopt common kaolin, polynite, illite, wilkinite, talcum, mica, vermiculite, chlorite, sepiolite etc., can be used alone or several used in combination.Fertilizer can carry out routine and select, as farm manure, cake fertilizer, compost, make compost, barnyard manure, natural pond are fertile, green manure or sludge, concrete fertilizer can carry out routine selection according to the kind of plantation.Wherein marine alga specifically can select fresh sea-tangle, huge marine alga, North Sea marine alga or other seaweed plant.
Embodiment
Embodiment 1
The soil heavy metal treatment agent of the present embodiment is mixed by the component of following weight percent: clay mineral 30%, fertilizer 30%, and said components is pulverized and mixed and makes soil heavy metal treatment agent by marine alga 40%.Specifically select clay mineral, fertilizer and marine alga according to varieties of plant, the present embodiment is to plant wheat, and clay mineral adopts polynite and the kaolin of 1:1, the farm manure that fertilizer adopts feces of livestock and poultry to make, and marine alga adopts commercially available fresh sea-tangle.
Heavy metal-polluted soil process is tested:
With the free of contamination cinnamon soil in Henan Province for carrier, the pedotheque after air-dry prepares against test by 2 mm sieves.Add allogenic water dissolubility plumbic acetate, Cadmium Sulphate, pollute by Pb 100mg/kg, Cd 1mg/kg simulated soil Pb, Cd, after aging 7 days, add the treatment agent of the present embodiment according to 1g/kg consumption, cultivate 14 days under 35 DEG C of conditions, drying, pulverizing make testing sample, measure its DTPA(diethylene triamine pentacetic acid (DTPA) respectively) Pb, Cd content of state, in the soil after process, Pb, Cd content is respectively 84.4mg/kg, 0.806mg/kg, remarkable reduction Pb, Cd content 15.6%, 19.4%.
Embodiment 2
The soil heavy metal treatment agent of the present embodiment is mixed by the component of following weight percent: clay mineral 40%, fertilizer 40%, and said components is pulverized and mixed and makes soil heavy metal treatment agent by marine alga 20%.Specifically select clay mineral, fertilizer and marine alga according to varieties of plant, the present embodiment is for maize planting, and clay mineral adopts wilkinite, the farm manure that fertilizer adopts feces of livestock and poultry to make, and marine alga adopts commercially available huge marine alga.
Heavy metal-polluted soil process is tested:
With the free of contamination cinnamon soil in Henan Province for carrier, the pedotheque after air-dry prepares against test by 2 mm sieves.Add allogenic water dissolubility plumbic acetate, Cadmium Sulphate, pollute by Pb 100mg/kg, Cd 1mg/kg simulated soil Pb, Cd, after aging 7 days, add the treatment agent of the present embodiment according to 2g/kg consumption, cultivate 14 days under 35 DEG C of conditions, drying, pulverizing make testing sample, measure its DTPA(diethylene triamine pentacetic acid (DTPA) respectively) Pb, Cd content of state, in the soil after process, Pb, Cd content is respectively 65.7mg/kg, 0.848mg/kg, remarkable reduction Pb, Cd content 14.3%, 15.2%.
Embodiment 3
The soil heavy metal treatment agent of the present embodiment is mixed by the component of following weight percent: clay mineral 35%, fertilizer 35%, and said components is pulverized and mixed and makes soil heavy metal treatment agent by marine alga 30%.Specifically select clay mineral, fertilizer and marine alga according to varieties of plant, the present embodiment is for manufacturing soybean, and clay mineral adopts wilkinite, the farm manure that fertilizer adopts feces of livestock and poultry to make, and marine alga adopts commercially available North Sea marine alga.
Heavy metal-polluted soil process is tested:
With the free of contamination cinnamon soil in Henan Province for carrier, the pedotheque after air-dry prepares against test by 2 mm sieves.Add allogenic water dissolubility plumbic acetate, Cadmium Sulphate, pollute by Pb 100mg/kg, Cd 1mg/kg simulated soil Pb, Cd, after aging 7 days, add the treatment agent of the present embodiment according to 2g/kg consumption, cultivate 14 days under 35 DEG C of conditions, drying, pulverizing make testing sample, measure its DTPA(diethylene triamine pentacetic acid (DTPA) respectively) Pb, Cd content of state, in the soil after process, Pb, Cd content is respectively 85.1mg/kg, 0.817mg/kg, remarkable reduction Pb, Cd content 14.9%, 18.3%.
Soil heavy metal treatment agent of the present invention; under the prerequisite meeting main component percentage composition clay mineral 30-40%, fertilizer 30-40% and marine alga 20-40%; other auxiliary material of 0-20% can also be added; such as sterilant, trace element fertilizer, NPK fertilizers, soil redeposition etc. are conducive to the ancillary component of plant growth; as long as have employed the main component of suitable percentage composition in the present invention, all protection scope of the present invention should be fallen into.
Claims (3)
1. a soil heavy metal treatment agent, is characterized in that: the component primarily of following weight percent forms: clay mineral 30 ~ 40%, fertilizer 30 ~ 40%, marine alga 20 ~ 40%.
2. soil heavy metal treatment agent according to claim 1, is characterized in that: described clay mineral is that one or more in kaolin, polynite, illite, wilkinite, talcum, mica, vermiculite, chlorite, sepiolite are arbitrarily than mixture.
3. soil heavy metal treatment agent according to claim 1, is characterized in that: described marine alga selects fresh sea-tangle or North Sea marine alga.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050130.2A CN102653680B (en) | 2011-03-02 | 2011-03-02 | Heavy metal treating agent for soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050130.2A CN102653680B (en) | 2011-03-02 | 2011-03-02 | Heavy metal treating agent for soil |
Publications (2)
| Publication Number | Publication Date |
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| CN102653680A CN102653680A (en) | 2012-09-05 |
| CN102653680B true CN102653680B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110050130.2A Expired - Fee Related CN102653680B (en) | 2011-03-02 | 2011-03-02 | Heavy metal treating agent for soil |
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| CN102921142B (en) * | 2012-11-06 | 2016-04-27 | 莱沃睿智绿色科技（北京）有限公司 | Heavy metal contaminants immobilized reagent composition and immobilization administering method |
| CN103909086A (en) * | 2013-01-08 | 2014-07-09 | 中国科学院城市环境研究所 | Soil improvement agent and method for reducing heavy metal content in tea |
| CN103710029B (en) * | 2013-12-20 | 2017-01-04 | 中节能六合天融环保科技有限公司 | A kind of targeting stabilizer of restoration of soil polluted by heavy metal |
| CN105710117A (en) * | 2014-08-06 | 2016-06-29 | 天津农学院 | Method for preparing microbe-modified clay mineral material |
| CN104293353A (en) * | 2014-09-19 | 2015-01-21 | 广西地源之本肥业有限公司 | Soil heavy metal processing agent |
| CN104190702B (en) * | 2014-09-19 | 2016-08-17 | 广西地源之本肥业有限公司 | A kind of processing method of contaminated soil |
| CN104259191A (en) * | 2014-09-19 | 2015-01-07 | 广西地源之本肥业有限公司 | Treatment method for heavy metal contaminated soil |
| CN105130694A (en) * | 2015-07-15 | 2015-12-09 | 中国科学院地理科学与资源研究所 | Compounded alga bio-fertilizer for repairing cadmium-polluted soil, preparation method and application thereof |
| CN105368460A (en) * | 2015-12-08 | 2016-03-02 | 江苏盖亚环境工程有限公司 | Lead metal soil pollution nanometer repairing agent and preparation method thereof |
| CN105885858A (en) * | 2016-04-12 | 2016-08-24 | 中国科学院南京土壤研究所 | Rhizosphere amendment used in acid heavy metal contaminated soil for preventing vegetables from absorbing cadmium and application of rhizosphere conditioner |
| CN105838380A (en) * | 2016-04-22 | 2016-08-10 | 广西喷施宝股份有限公司 | Soil restoration conditioner for treating cadmium pollution |
| CN106675563A (en) * | 2016-11-21 | 2017-05-17 | 陈雪华 | Heavy metal contaminated soil restoration agent as well as preparation method and application thereof |
| CN106630085A (en) * | 2016-12-22 | 2017-05-10 | 郑州丽福爱生物技术有限公司 | Environment-friendly treating agent for heavy metal-containing wastewater |
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| CN106635039A (en) * | 2016-12-27 | 2017-05-10 | 郑州源冉生物技术有限公司 | Nickel-contaminated soil repairing agent and preparation method thereof |
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| CN107459428A (en) * | 2017-08-31 | 2017-12-12 | 四川长虹格润再生资源有限责任公司 | A kind of farmland soil heavy metals cadmium renovation agent and its application method |
| CN108976074A (en) * | 2018-06-30 | 2018-12-11 | 浙江瑞美生态建设股份有限公司 | A kind of heavy metal-polluted soil passivation renovation agent and its restorative procedure |
| CN109824427A (en) * | 2019-01-25 | 2019-05-31 | 兰州大学 | A kind of Slow-release organic fertilizer improving heavy metal pollution of soil |
| CN109824426A (en) * | 2019-01-25 | 2019-05-31 | 兰州大学 | A kind of slow release fertilizer improving heavy metal pollution of soil |
| CN110616073A (en) * | 2019-03-31 | 2019-12-27 | 上海康恒环境修复有限公司 | Agent for efficiently treating high-concentration arsenic and antimony polluted soil and application thereof |
| CN110125161A (en) * | 2019-04-30 | 2019-08-16 | 湖南大学 | A kind of heavy metal soil-repairing agent and method cooperateing with compost based on magnesia-montmorillonite composite material |
| CN110055082A (en) * | 2019-05-07 | 2019-07-26 | 浙江绿垚生态环境有限公司 | A kind of heavy-metal contaminated soil repairs medicament and its application method |
| CN110128202A (en) * | 2019-05-31 | 2019-08-16 | 襄阳农博源农业有限公司 | A kind of biological organic fertilizer and preparation method thereof |
| CN112094650A (en) * | 2020-09-28 | 2020-12-18 | 杨剑飞 | Soil remediation agent and preparation method and application thereof |
| CN116586419A (en) * | 2023-06-14 | 2023-08-15 | 甘肃昊洲土壤修复科技有限责任公司 | Method for repairing heavy metal pollution of mineral fertilizer to saline-alkali soil |
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| CN1850739A (en) * | 2006-05-18 | 2006-10-25 | 陕西杨凌华阳化工有限责任公司 | Polar-molecule composite fertilizer additive |
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| CN102653680A (en) | 2012-09-05 |
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Inventor after: Chen Puqing Inventor after: Wang Kemin Inventor before: Wang Kemin |
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