CN102675000A - Method for preparing soil culture medium suitable for growth of plants in industrial alkaline tailings dam - Google Patents
Method for preparing soil culture medium suitable for growth of plants in industrial alkaline tailings dam Download PDFInfo
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- CN102675000A CN102675000A CN2012101820278A CN201210182027A CN102675000A CN 102675000 A CN102675000 A CN 102675000A CN 2012101820278 A CN2012101820278 A CN 2012101820278A CN 201210182027 A CN201210182027 A CN 201210182027A CN 102675000 A CN102675000 A CN 102675000A
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Abstract
The invention relates to a method for preparing a soil culture medium suitable for growth of plants in an industrial alkaline tailings dam. In the following steps, the constituents all based on one part by weight of granulating agent as a benchmark. Firstly, proper clean water and the granulating agent are filled in a container, uniformly mixed, and placed for standby; then clay, an inorganic fertilizer, a soil stabilizer, a bean cake and turfy soil are added into another container, a proper amount of clean water is added into the mixture to be uniformly mixed with the mixture; then brim stone and plaster are added into the mixture to regulate the pH value to obtain a slurry mixed material; the granulating agent solution is added into the slurry mixed material to be mixed together until the clean water seeps from the soil to complete the soil granulation, and the soil culture medium suitable for the growth of the plants in the industrial alkaline tailings dam can be obtained. The soil culture medium prepared by the method has the advantages of large porosity, good water retention and nutrient preserving capability and the like, the physicochemical property of the alkaline soil can be remarkably improved, the complexing of heavy metal ions can be achieved, the alkaline soil can be weakened, the alkalization degree of the soil and the soluble metal ions in the soil are be reduced, the organic content of the soil is increased, and various kinds of inorganic nutrient elements required for the plants are provided.
Description
Technical field
The present invention relates to a kind of preparation method of soil culture medium, especially relate to a kind of soil culture medium that is suitable for industrial alkaline tailing dam plant-growth.
Background technology
Mine tailing is meant " waste residue " that ore that metal or non-metal mine are exploited out discharges after valuable concentrate is selected in the dressing-works, under current condition of technology and economy, and should not be in further sorting.China's metal tailings amount accumulative total reaches 5,000,000,000 tons, has formed a large amount of bare side slopings, has not only destroyed ecotope, can also cause that local miniclimate changes and the destruction of biologic chain.Under the situation of face of land stacking, mine tailing is prone to take place hypergenes such as oxidation, hydrolysis and weathering and changes, and making originally, free of contamination component becomes pollution components.Wherein many mine tailings contain higher alkalescence, and for example red mud heap (alumina technology) pH value is between 10～12, and most plants under normal circumstances are difficult to existence, and multiple green work brings bigger difficulty to side slope.
For adapting to needs such as extreme terrain landforms, vegetation growth, environment recovery; Artificial soil adopts formulated (like Chinese patent ZL00120508.0) such as greening base material, stablizer, agent usually under certain condition; Associated materials after the preparation is ejected into formation one deck soil moved in to improve the original layer on rock or the soil-slope, expects plant germinating growth therein then.
CN1766035A discloses a kind of working method of artificial soil conditioner for slope, and it is formed by quality %: algae-residue 15%～65%; Wormcast 10%～40%; Valonex 1%～8%; Humic acids 5%～35%; Plant ash 2%～15%; The water cut of algae-residue, wormcast is 5%～30%; Valonex, humic acids are taken from industrial valonex, humic acids, and plant ash is taken from agricultural and uses plant ash.
CN1292988A discloses a kind of bed for planting vegetation on rock slope to protect it, and its component is the % meter by weight: greening base material 86%～93%; Grass seed mix 1.5%～4.0%; Stablizer 5.0%～1.0%; Granule agent 0.4%～1.0%.Wherein, greening base material component is made up of plateau peat, clay, compost, potash fertilizer, phosphate fertilizer, nitrogenous fertilizer, long-acting full price slow-release fertilizer, bio-feritlizer, unslaked lime, water-holding agent, robust fibre, viscous fiber, sawdust.
CN101743793A discloses plant growth soil culture medium and preparation method thereof, and its component by volume % is counted by clay 30%～32%; Organic 35%～38%; Vegetable fibre 19%～25%; Stablizer 3%～6%; Granule agent 0.035%～0.085%; Fertilizer 2%; Clear water 36%～45%; Seed 0.9%～3.3%.
The multiple green requirement to soil culture medium of the alkaline tailing dam of industry is very harsh, and general soil culture medium can not fundamentally solve saline and alkaline problem and anti-scouring capability.
Summary of the invention
The physico-chemical property that soil culture medium of the present invention can be improved the soil; Complexation heavy metal ion; Increase soil organic matter content, improve water stability coacervate content, strengthen soil anti-impact corrosion stability greater than 0.25mm; Improve local ecotope, the multiple green work of the alkaline tailing dam of solution industry of putting things right once and for all.
The object of the invention provides a kind of soil culture medium preparation method who is suitable for industrial alkaline tailing dam plant-growth, and this soil culture medium can solve tailing dam saline alkali problem and soil erosion problem; And have stable crumb structure, water-retentivity, nutrient preserving capability, air permeability are all good, are fit to plant-growth.
A kind of preparation method who is suitable for the soil culture medium of industrial alkaline tailing dam plant-growth comprises the steps, below in each step each component be benchmark all with the granule agent of 1 weight part:
A, in a container proper amount of clear water of 15 ℃～25 ℃ of implantation temperatures, add the granule agent of 1 weight part, evenly stirred 10～20 minutes, obtain an agent solution, shelve subsequent use;
B, with the 1000-1100 parts by weight of clay; The inorganic fertilizer of 28-45 weight part; The soil stabilizer of 20-40 weight part, the water cut of 200-400 weight part are the soya-bean cake of 0.5% (weight), the turfy soil of 200-300 weight part; Join in another container, add proper amount of clear water and evenly stirred 10～20 minutes;
C, add sulphur 14-26 weight part again, gypsum 8-16 weight part is regulated its pH5.5～6.5, obtains the mud compound;
The mud compound that D, the granule agent solution gradation adding C step that the A step is obtained obtain fully mixes; In soil, ooze out clear water; Accomplish soil granularization, can obtain the described soil culture medium that is suitable for industrial alkaline tailing dam plant-growth.
The specific conductivity 2ms/cm of this soil culture medium～3.5ms/cm; Saltiness 0.1%～0.3%; Effectively water holding capacity (volume) % is 20.4%～39.1%; Saturation moisture capacity (volume) % is 30.9%～50.6%.
Described inorganic fertilizer comprises nitrogenous fertilizer, phosphate fertilizer and potash fertilizer.Described nitrogenous fertilizer is at least a nitrogen fertilizer in urea, saltpetre, bicarbonate of ammonia, ammonium sulfate, the ammonium phosphate; Described phosphate fertilizer is at least a phosphatization fertilizer that contains in ammonium phosphate, ground phosphate rock, superphosphate of lime, fused(calcium magnesium)phosphate, the double superhosphate; Described potash fertilizer is at least a potassium fertilizer that contains in Repone K, vitriolate of tartar, saltpetre, the potassium primary phosphate.
Beneficial effect is: described gypsum can be replaced metallic aluminium ion and the iron ion in the soil, reduces the saline alkali of soil.The hydroxide ion of described sulphur in can sweetening of the soil significantly reduces saline and alkaline, is adjusted to the suitable pH value that is fit to plant-growth.This plant-growth soil culture medium that obtains provides necessary edaphic condition and nutrient condition preferably, promoted matrix the slaking of one-tenth soil, increase the available nutrient of soil supply, improved soil physico-chemical characteristic, promoted that Revegetation has significant effect.
Raw material involved in the present invention except that specifying, all can be buied from market, is industry raw material commonly used.
Embodiment
Place: Zibo City, Shandong Province, aluminium ore red mud heap; Area: 1000m
2The gradient: 60 °; PH value: 10.37.
Embodiment 1
Be suitable for the preparation method of the soil culture medium of industrial alkaline tailing dam plant-growth, comprise the steps, below in each step each component be benchmark all with the granule agent of 1kg:
A, in a container proper amount of clear water of 15 ℃ of implantation temperatures, add the granule agent of 1kg, evenly stirred 10 minutes, obtain an agent solution, shelve subsequent use;
B, with the clay of 1000kg, the mixture of the urea of 30kg, ground phosphate rock and vitriolate of tartar is as inorganic fertilizer, the stablizer of 22kg; The water cut of 200kg is the soya-bean cake of 0.5% (weight); The turfy soil of 200kg joins in another container, adds an amount of 20 ℃ of clear water and evenly stirs 15 minutes;
C, add sulphur 14kg again, gypsum 14kg regulates its pH6.5, obtains the mud compound;
D, the mud compound that the C step is obtained fully mix, and in soil, ooze out clear water, accomplish soil granularization, can obtain the described soil culture medium that is suitable for industrial alkaline tailing dam plant-growth.
The specific conductivity 2ms/cm of this soil culture medium; Saltiness 0.1%; Effectively water holding capacity (volume) % is 20.4%; Saturation moisture capacity (volume) % is 30.9%; Described gypsum can be replaced metallic aluminium ion and the iron ion in the soil, reduces the saline alkali of soil, the hydroxide ion of described sulphur in can sweetening of the soil; Significantly reduce saline and alkaline, be adjusted to the suitable pH value that is fit to plant-growth.Each item index of this soil culture medium is: pH value 5.78; Specific conductivity 2.46ms/cm; Saltiness 0.16%; Effective water holding capacity 31.89% (volume %); Saturation moisture capacity (volume %) 40.55%; Organic content 48g/kg.
Embodiment 2
Be suitable for the preparation method of the soil culture medium of industrial alkaline tailing dam plant-growth, comprise the steps, below in each step each component be benchmark all with the granule agent of 1kg:
A, in a container proper amount of clear water of 15 ℃～25 ℃ of implantation temperatures, add the granule agent of 1kg, evenly stirred 20 minutes, obtain an agent solution, shelve subsequent use;
B, with the clay of 1100kg; The mixture of the saltpetre of 40kg, double superhosphate and potassium primary phosphate is as inorganic fertilizer; The stablizer of 40kg, the water cut of 300kg are the soya-bean cake of 0.5% (weight), the turfy soil of 300kg; Join in another container, add an amount of 20 ℃ of clear water and evenly stirred 10～20 minutes;
C, add sulphur 24kg again, gypsum 16kg regulates its pH5.5, obtains the mud compound;
D, the mud compound that the C step is obtained fully mix, and in soil, ooze out clear water, accomplish soil granularization, can obtain the described soil culture medium that is suitable for industrial alkaline tailing dam plant-growth.The specific conductivity 3.5ms/cm of this soil culture medium; Saltiness 0.3%; Effectively water holding capacity (volume) % is 39%; Saturation moisture capacity (volume) % is 50.2%.This plant-growth soil culture medium that obtains provides necessary edaphic condition and nutrient condition preferably, promoted matrix the slaking of one-tenth soil, increase the available nutrient of soil supply, improved soil physico-chemical characteristic, promoted that Revegetation has significant effect.
Claims (4)
1. a preparation method who is suitable for the soil culture medium of industrial alkaline tailing dam plant-growth is characterized in that comprising the steps, below in each step each component be benchmark all with the granule agent of 1 weight part:
A, in a container proper amount of clear water of 15 ℃～25 ℃ of implantation temperatures, add the granule agent of 1 weight part, evenly stirred 10～20 minutes, obtain an agent solution, shelve subsequent use;
B, with the 1000-1100 parts by weight of clay; The inorganic fertilizer of 28-45 weight part; The soil stabilizer of 20-40 weight part, the water cut of 200-400 weight part are the soya-bean cake of 0.5% (weight), the turfy soil of 200-300 weight part; Join in another container, add proper amount of clear water and evenly stirred 10～20 minutes;
C, add sulphur 14-26 weight part again, gypsum 8-16 weight part is regulated its pH5.5～6.5, obtains the mud compound;
The mud compound that D, the granule agent solution gradation adding C step that the A step is obtained obtain fully mixes; In soil, ooze out clear water; Accomplish soil granularization, can obtain the described soil culture medium that is suitable for industrial alkaline tailing dam plant-growth.
2. method according to claim 1 is characterized in that the specific conductivity 2ms/cm～3.5ms/cm of this soil culture medium; Saltiness 0.1%～0.3%; Effectively water holding capacity (volume) % is 20.4%～39.1%; Saturation moisture capacity (volume) % is 30.9%～50.6%.
3. method according to claim 1 is characterized in that described inorganic fertilizer comprises nitrogenous fertilizer, phosphate fertilizer and potash fertilizer.
4. method according to claim 3 is characterized in that described nitrogenous fertilizer is at least a nitrogen fertilizer in urea, saltpetre, bicarbonate of ammonia, ammonium sulfate, the ammonium phosphate; Described phosphate fertilizer is at least a phosphatization fertilizer that contains in ammonium phosphate, ground phosphate rock, superphosphate of lime, fused(calcium magnesium)phosphate, the double superhosphate; Described potash fertilizer is at least a potassium fertilizer that contains in Repone K, vitriolate of tartar, saltpetre, the potassium primary phosphate.
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| CN2012101820278A CN102675000A (en) | 2012-05-07 | 2012-06-05 | Method for preparing soil culture medium suitable for growth of plants in industrial alkaline tailings dam |
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| CN201210137509.1 | 2012-05-07 | ||
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| CN2012101820278A CN102675000A (en) | 2012-05-07 | 2012-06-05 | Method for preparing soil culture medium suitable for growth of plants in industrial alkaline tailings dam |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265361A (en) * | 2013-05-22 | 2013-08-28 | 潘志刚 | Macromolecular aggregate plant growth substrate and preparation method thereof |
| CN103262692A (en) * | 2013-05-02 | 2013-08-28 | 青岛冠中生态股份有限公司 | Water retention and fertilizer retention artificial soil spray seeding greening method |
| CN106258588A (en) * | 2016-08-15 | 2017-01-04 | 大连地拓重工有限公司 | A kind of Pb-Zn tailings planting soil and preparation method thereof |
| CN106258586A (en) * | 2016-08-15 | 2017-01-04 | 大连地拓重工有限公司 | A kind of molybdic tailing planting soil and preparation method thereof |
| CN106365908A (en) * | 2016-08-31 | 2017-02-01 | 湖南凯天重金属污染治理工程有限公司 | Tailing pond soil conditioner and application method thereof |
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| CN1676570A (en) * | 2004-03-29 | 2005-10-05 | 吉林农业大学 | Saline-alkali soil modifying agent and modifying method |
| CN101743793A (en) * | 2009-12-31 | 2010-06-23 | 青岛高次团粒生态技术有限公司 | Plant growth soil culture medium and preparation method thereof |
| CN101849493A (en) * | 2010-06-11 | 2010-10-06 | 李生发 | Culture method of red-peel red-pulp honey pomelos |
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2012
- 2012-06-05 CN CN2012101820278A patent/CN102675000A/en active Pending
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| CN1156712A (en) * | 1996-10-15 | 1997-08-13 | 清华大学 | Bio-fertilizer and its producing process |
| CN1676570A (en) * | 2004-03-29 | 2005-10-05 | 吉林农业大学 | Saline-alkali soil modifying agent and modifying method |
| CN101743793A (en) * | 2009-12-31 | 2010-06-23 | 青岛高次团粒生态技术有限公司 | Plant growth soil culture medium and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262692A (en) * | 2013-05-02 | 2013-08-28 | 青岛冠中生态股份有限公司 | Water retention and fertilizer retention artificial soil spray seeding greening method |
| CN103262692B (en) * | 2013-05-02 | 2015-03-18 | 青岛冠中生态股份有限公司 | Water retention and fertilizer retention artificial soil spray seeding greening method |
| CN103265361A (en) * | 2013-05-22 | 2013-08-28 | 潘志刚 | Macromolecular aggregate plant growth substrate and preparation method thereof |
| CN106258588A (en) * | 2016-08-15 | 2017-01-04 | 大连地拓重工有限公司 | A kind of Pb-Zn tailings planting soil and preparation method thereof |
| CN106258586A (en) * | 2016-08-15 | 2017-01-04 | 大连地拓重工有限公司 | A kind of molybdic tailing planting soil and preparation method thereof |
| CN106365908A (en) * | 2016-08-31 | 2017-02-01 | 湖南凯天重金属污染治理工程有限公司 | Tailing pond soil conditioner and application method thereof |
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Application publication date: 20120919 |