Summary of the invention
Technical problem to be solved by this invention provides a kind of stalk charcoal preparation methods and application; Utilize the abundant and cheap stalk charcoal of stock number to prepare as the high adsorption material; Can avoid or reduce the leaching loss of nitrogenous fertilizer nutrient and the slightly solubility of titanium pigment fertilizer nutrient fixes; Thereby improve the utilization rate of crop to nitrogen phosphorus fertilizer, the blocking-up farm environment is to the discharging of water pollution from the source.
In order to solve the problems of the technologies described above, the invention provides a kind of stalk charcoal preparation methods, comprising:
Preparation 0.2~5.0mol L
-1Water-soluble metal salting liquid or metal oxide solution, the pH value of regulating said solution with corresponding inorganic acid is in 5.0~6.0 scopes; By 0.2~20: 100 weight ratio is added the said solution of regulating through the pH value in the stalk charcoal to, fully mix, and the pH value scope of control and regulation mixture stirs infiltration placement 1~2 hour frequently between 6.5~7.5; Remove by filter the excessive aqueous solution, dry under 60~80 ℃, make the stalk charcoal sorbing material that is rich in reactive metal oxides.
Preferably,
The water-soluble metal salting liquid is any one in liquor ferri trichloridi, ferric chloride solution, iron nitrate solution, copperas solution, ferrum sulfuricum oxydatum solutum, calcium chloride solution, calcium nitrate solution, magnesium chloride solution, the magnesium nitrate solution, and metal oxide solution is calcium oxide solution or magnesium oxide solution;
The corresponding inorganic acid of liquor ferri trichloridi, ferric chloride solution, iron nitrate solution and ferrum sulfuricum oxydatum solutum is respectively hydrochloric acid, nitric acid and sulfuric acid; The corresponding inorganic acid of calcium chloride solution, magnesium chloride solution, calcium nitrate solution, magnesium nitrate solution, calcium oxide solution and magnesium oxide solution is respectively hydrochloric acid, nitric acid;
The stalk charcoal sorbing material that is rich in reactive metal oxides is the stalk charcoal sorbing material that is rich in activated ferric oxide or active calcium oxide or activated magnesia.
Preferably,
Calcium oxide solution or magnesium oxide solution are respectively calcium oxide solution of at present joining or the magnesium oxide solution of at present joining.
Preferably, this method also comprises:
Ratio by the weight 100: 0.5~1.0: 0.8~1.0 of stalk charcoal sorbing material, useful active bacteria and urea takes by weighing weight respectively; Useful active bacteria and urea are dissolved in an amount of water; Stir stalk charcoal sorbing material on one side; Evenly spray the mixed solution of useful active bacteria and said urea on one side; After integral body mixed, air-dry and control moisture was in 5% scope, made to possess the soil beneficial microorganism and be rich in activated ferric oxide or calcium oxide or magnesian stalk charcoal sorbing material.
Preferably, this method also comprises:
In stalk charcoal sorbing material, add adhesive, after mixing, extruder grain, dry under 60~80 ℃, make and be rich in activated ferric oxide or calcium oxide or magnesian stalk charcoal particulate adsorbent material or foreign odor flavor adsorption removal material.
Preferably,
This adhesive is to contain in 12%~20% urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane and the polyvinyl alcohol one or more.
Preferably, this method also comprises:
Get a certain amount of stalk charcoal, spray an amount of moistening moisture, logical while stirring sour gas, the stalk charcoal that the stalk charcoal is converted into be rich in corresponding inorganic acid salt compound;
Stalk charcoal sorbing material is mixed by 1: 0.2~100 weight ratio with the stalk charcoal that is rich in the inorganic acid salt compound; And the bonding adjustment agent of interpolation low amounts of dust; After fully mixing; Dry under 60~80 ℃, make the have activated ferric oxide or calcium oxide or magnesian stalk charcoal that are rich in corresponding inorganic salts and adsorb the snow melt material.
Preferably,
Sour gas is CO
2Or coal electricity waste gas SO
2Or NO
2In any one, the inorganic acid salt compound is corresponding to CO
2Be carbonate compound, or corresponding to SO
2Be sulphate cpd, or corresponding to NO
2Be nitrate compound;
The bonding adjustment agent of dust is to contain in 0.5%~5% urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane and the polyvinyl alcohol one or more.
In order to solve the problems of the technologies described above, what the invention provides that a kind of as previously mentioned stalk charcoal of utilization preparation methods makes is rich in activated ferric oxide or calcium oxide or the application of magnesian stalk charcoal sorbing material aspect soil improvement.
In order to solve the problems of the technologies described above; What the invention provides that a kind of as previously mentioned stalk charcoal of utilization preparation methods makes is rich in activated ferric oxide or calcium oxide or magnesian stalk charcoal sorbing material as microbial carrier material, protects the application aspect holding at the soil and fertilizer nutrient.
In order to solve the problems of the technologies described above, the be rich in activated ferric oxide or calcium oxide or magnesian stalk charcoal sorbing material that the invention provides that a kind of as previously mentioned stalk charcoal of utilization preparation methods makes are resisted the application of cryogenic freezing ability to strengthening field-crop.
In order to solve the problems of the technologies described above, the invention provides that a kind of as previously mentioned stalk charcoal of utilization preparation methods makes be rich in activated ferric oxide or calcium oxide or magnesian stalk charcoal sorbing material aspect snow melt application or in application in environmental purification.
The present invention passes through the preparation of stalk charcoal as the high adsorption material; The nitrate nitrogen and the phosphate that can adsorb anion; The liquid manure that improves soil is protected accumulation of energy and is done, avoid or reduce the leaching loss of nitrogenous fertilizer nutrient with the slightly solubility of phosphate fertilizer nutrient is fixed, thereby the raising crop is to the utilization rate of nitrogen phosphorus fertilizer.The adsorption removal that simultaneously, can the preparation of stalk charcoal be applied to the organic-inorganic pollutant in waste water and the environment water is handled.The soda acid of regulating the stalk charcoal is neutral, and the cellular porous carrier structure of carbide and the characteristics such as accumulating nutrient of preserving moisture can provide the place for soil beneficial microbe appendix nourishes.Have again; With in inorganic or organic acid or the sour gas with the strong basicity process of stalk charcoal; Particularly given stalk charcoal composition and be rich in environment friendly type snow melt salt, and brought into play the stalk charcoal, can be applicable to farmland, cities and towns snow melt inorganic and strong characterization of adsorption organic pollution with the organic acid neutralization; Wherein, the heavy metal and the organic pollution of sedimentation on the road surface can also be adsorbed with its snow melt in cities and towns, remove or alleviate cities and towns and pollute enrichment.
The specific embodiment
The same charing body with active carbon of agricultural crop straw charcoal forms cellular porous structure, and the surface area of every g stalk charcoal can reach 200~400m
2, show have damping dehumidifying, to the characteristic of mineral ion and organic good adsorption effect, sterilization effectively, deodorizing and guarantor hold soil nutrient, so aspect the depollution of environment, good prospects for application is arranged.
The stalk charcoal is at first that as its advantage of sorbing material price is very cheap.Secondly, the crop material stock number is abundant, and also having forestry thinnings, waste wood, hill residue, processing of farm products solid slag etc. to fully utilize can sustainable development.Moreover the ionic adsorption performance of stalk charcoal is high, and without putrefaction can improve the permeability of soil air and moisture; Its nutrient preserving capability is good, can adjust soil acidity or alkalinity, and can replenish the essential constant of some crops and micro-element nutrition is used for improving the soil, thereby promotes the good growth of crop root.The stalk charcoal has the ability of adsorbed moisture and mineral ion, and cellular porous structure also helps the soil beneficial microorganism to nourish, thereby helps improving and promoting plant growth.The stalk charcoal is used on lawn, golf course and so on greenery patches can make lawn growth good, helps the penetrating and water management of place soil moisture.The stalk charcoal can also preserve soil moisture at soil temperature raising, improves 1~1.5 ℃ of the soil moisture early spring, for field-crop is resisted the cryogenic freezing ability, and makes aspect such as Snow Agent and obtains good effect.
Embodiment 1
Preparation 0.2~5.0mol L
-1Liquor ferri trichloridi, and the pH that uses HCl to regulate this solution is 5.0, takes by weighing (crops such as wheat or corn) stalk charcoal of 100g is that 5.0 liquor ferri trichloridi sprays equably and adds in the stalk charcoal with pH, fully mixes.Potassium oxide in inorganic molysite solution and the stalk charcoal is the alkaline reaction of principal component, and iron ion forms ferric hydroxide colloid in the stalk charcoal, makes mixture pH value reach 5.0.Afterwards, mix frequently, soak into and placed 1~2 hour.Remove by filter the excessive aqueous solution, 60~80 ℃ of dryings make the stalk charcoal adsorption function type material that is rich in oxide of high activity iron.
In the drip washing pipe (diameter 3.3cm, long 35cm) of bottom pad one deck absorbent cotton and the thick filter paper of 1.0cm, fill the soil that is uniformly mixed to form by 200g dry soil and the common stalk charcoal of 10g, pass through with distilled water and irritate until anhydrous following, this earth pillar is with comparing; Simultaneously, fill in through the same drip washing pipe of handling by 200g dry soil and 10g at another and to be rich in the soil that the stalk charcoal of oxide of high activity iron is uniformly mixed to form, pass through filling until anhydrous following with distilled water, this earth pillar is with dealing with.Add 10 milliliters of 0.1mol L respectively from two earth pillar upper ends
-1Potassium nitrate solution; Infiltrate native face to potassium nitrate solution; Add high distilled water rapidly apart from soil table 1cm; And the content of measuring the nitrate ion in the filter liquor respectively observes the adsorption capacity of two earth pillars to nitrate ion, wherein mixes the stalk charcoal earth pillar that is rich in oxide of high activity iron the adsorption capacity of nitrate ion is reached 50~59% than common stalk charcoal earth pillar increase rate.
Embodiment 2
Preparation 0.2~5.0mol L
-1Ferrum sulfuricum oxydatum solutum, and use H
2SO
4The pH that regulates this solution is 6.0, takes by weighing (paddy rice or crops such as soybean or cotton) stalk charcoal of 100g, is that 6.0 ferrum sulfuricum oxydatum solutum sprays equably and adds in the stalk charcoal with pH, fully mixes.Potassium oxide in inorganic molysite solution and the stalk charcoal is the alkaline reaction of principal component, and iron ion forms ferric hydroxide colloid in the stalk charcoal, makes mixture pH value reach 8.5.Afterwards, mix frequently, soak into and placed 1~2 hour.Remove by filter the excessive aqueous solution, 60~80 ℃ of dryings make the stalk charcoal adsorption function type material that is rich in oxide of high activity iron.
The drip washing pipe of pad one deck absorbent cotton and the thick filter paper of 1.0cm in the bottom (diameter 3.3cm, long 35cm), the soil that interior filling is uniformly mixed to form by 200g dry soil and the common stalk charcoal of 10g passes through filling until anhydrous following with distilled water, and this earth pillar is with comparing; Simultaneously, fill by 200g dry soil and 10g and be rich in the soil that the stalk charcoal of oxide of high activity iron is uniformly mixed to form, pass through filling until anhydrous following with distilled water, this earth pillar is with dealing with.Add 10 milliliters of 0.1mol L from two earth pillar upper ends respectively
-1Potassium nitrate solution; Infiltrate native face to potassium nitrate solution; Add high distilled water rapidly apart from soil table 1cm; The nitrate ion content of measuring in the filter liquor is observed the adsorption capacity of two earth pillars to nitrate ion, wherein mixes the stalk charcoal earth pillar that is rich in oxide of high activity iron the adsorption capacity of nitrate ion is reached 45~52% than common stalk charcoal earth pillar increase rate.
Embodiment 3
Preparation 0.2~5.0mol L
-1Iron nitrate solution, and use HNO
3The pH that regulates this solution is 5.5, takes by weighing the forestry thinnings of 100g or the carbide of waste wood or dry branches and fallen leaves or hill residue or processing of farm products solid slag etc., is that 5.5 iron nitrate solution sprays equably and adds in the stalk charcoal with pH, fully mixes.Potassium oxide in inorganic molysite solution and the stalk charcoal is the alkaline reaction of principal component, and iron ion forms ferric hydroxide colloid in the stalk charcoal, makes mixture pH value reach 7.5.Afterwards, mix frequently, soak into and placed 1~2 hour.Remove by filter the excessive aqueous solution, 60~80 ℃ of dryings make the stalk charcoal adsorption function type material that is rich in oxide of high activity iron.
The stalk charcoal that is rich in oxide of high activity iron that present embodiment is made is used for the phosphatic absorption of the aqueous solution, promptly under normal temperature condition, in 100 milliliters of 0.01mol L
-1Add the stalk charcoal that is rich in oxide of high activity iron of 0.1~10g in the potassium phosphate solution of concentration, vibrate after 1 hour, measure phosphate ion content in the filtered fluid, improve 0.8~1.5 times than the adsorption capacity of common stalk charcoal.
Embodiment 4
Preparation 0.2~5.0mol L
-1Calcium chloride solution or magnesium chloride solution or the calcium oxide solution of at present joining or the magnesium oxide solution of at present joining; Take by weighing the forestry thinnings of 100g or the carbide of waste wood or dry branches and fallen leaves or hill residue or processing of farm products solid slag etc.; Calcium chloride or magnesium chloride solution or the calcium oxide solution of at present joining or the magnesium oxide solution of at present joining sprayed equably add in the stalk charcoal; Mix, and with HCl or HNO
3It is closely neutral to regulate pH, fully mixes.Soluble calcium salt or solubility magnesium salts or calcium oxide or magnesia should mix with the stalk charcoal, regulated the pH value, and calcium ion or magnesium ion form hydroxide colloid in the stalk charcoal, make mixture pH value reach 7.5.Afterwards, mix frequently, soak into and placed 1~2 hour.Remove by filter the excessive aqueous solution, 60~80 ℃ of dryings make and are rich in highly active calcium oxide or magnesian stalk charcoal adsorption function type material.
The stalk charcoal that is rich in highly active calcium oxide or magnesium that present embodiment is made is used for the phosphatic absorption of waste water solution, promptly under normal temperature condition, in 100 milliliters of 0.01mol L
-1Add the stalk charcoal that is rich in highly active calcium oxide or magnesium of 0.1~10g in the potassium phosphate solution of concentration, vibrate after 1 hour, measure phosphate ion content in the filtered fluid, improve 1.2~2.2 times than the adsorption capacity of common stalk charcoal.
In the present embodiment; If calcium oxide for preparing already or magnesium oxide solution; Can absorb carbon dioxide in air and produce deposition, the calcium ion or the magnesium ion in the magnesia that can influence thus in the calcium oxide mix the stalk charcoal sorbing material that magnesia or calcium oxide are rich in generation with the stalk charcoal.If join at present calcium oxide or magnesium oxide solution, then can reduce this influence.
Any one stalk charcoal that is rich in oxide of high activity iron that embodiment 1 or embodiment 2 or embodiment 3 are made spreads fertilizer over the fields 100~300kg/ mu; Minimizing nitrate nitrogen leaching loss of nutrient and soluble phosphate slightly solubility are fixed in agricultural land soil; Improve crop to the nitrogen phosphorus fertilizer nutrient utilization, blocking-up polluted-water ambient source hair is waved effect.Simultaneously, reduce the soil weight, improve soil temperature raising soil moisture conservation characteristic, early spring, test improved 0.8~2.0 ℃ of the soil moisture, and the stalk charcoal absorbs the infra-red radiation effect after the solar energy, for field-crop is resisted the cryogenic freezing ability.Help the penetrating and water and fertilizer management of lawn, golf course and so on greenery patches soil moisture.
The above-mentioned stalk charcoal of the present invention is the carbide of agricultural crop straw (all agricultural crop straws such as wheat, corn, paddy rice, soybean, cotton), forestry thinnings, waste wood, dry branches and fallen leaves, hill residue, processing of farm products solid slag etc.Above-mentioned inorganic molysite is iron chloride, ferric nitrate or ferric sulfate.
Embodiment 5
Preparation 0.2~2.0mol L
-1Iron nitrate solution or calcium nitrate solution or magnesium nitrate solution, and use HNO
3The pH value of regulating this solution is 5.5; Take by weighing (wheat, corn, paddy rice, soybean, cotton, forestry thinnings or waste wood or dry branches and fallen leaves or hill residue or processing of farm products solid slag etc.) carbide stalk charcoal of 100g; With the pH value is that 5.5 iron nitrate solution sprays equably and adds in this stalk charcoal, fully mixes.Potassium oxide in inorganic molysite solution or calcium oxide solution or magnesium oxide solution or soluble calcium salt or solubility magnesium salts and the stalk charcoal is the alkaline reaction of principal component; Iron ion or calcium ion or magnesium ion form hydroxide colloid in the stalk charcoal; Make the pH value scope of mixture reach 7.5, mix frequently, soak into and placed 1~2 hour.After adding adhesive (promptly contain in 5%~10% urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane and the polyvinyl alcohol one or more) afterwards and mixing; Extruder grain; Dry under 60~80 ℃, make the stalk charcoal particulate adsorbent material that is rich in oxide of high activity iron.
100: 0.5: 0.8 ratio of weight by stalk charcoal sorbing material, useful active bacteria and urea takes by weighing weight respectively; Useful active bacteria and urea are dissolved in the suitable quantity of water; Stir stalk charcoal sorbing material on one side, on one side the even mixed solution that sprays useful active bacteria and urea, after integral body mixes; Air-dry and control moisture is in 5% scope, makes to possess the soil beneficial microorganism and be rich in the stalk charcoal adsorption function type material of oxide of high activity iron.
Embodiment 6
Preparation 0.2~1.5molL
-1Liquor ferri trichloridi or calcium chloride solution or magnesium chloride solution; And the pH value of using HCl to regulate this solution is 5.5; Take by weighing (wheat, corn, paddy rice, soybean, cotton, forestry thinnings or waste wood or dry branches and fallen leaves or hill residue or processing of farm products solid slag etc.) carbide stalk charcoal of 100g; With the pH value is that 5.5 liquor ferri trichloridi sprays equably and adds in this stalk charcoal, fully mixes.Inorganic molysite solution or calcium oxide or magnesia or soluble calcium salt or solubility magnesium salts should be the alkaline reaction of principal component with the potassium oxide in the stalk charcoal; Iron ion or calcium ion or magnesium ion form hydroxide colloid in the stalk charcoal; Make the pH value scope of mixture reach 6.5, mix frequently, soak into and placed 1~2 hour.After adding adhesive (promptly contain in 12%~20% urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane and the polyvinyl alcohol one or more) afterwards and mixing; Extruder grain; Dry under 60~80 ℃, make the stalk charcoal particulate adsorbent material or the foreign odor flavor adsorption removal material that are rich in oxide of high activity iron.
100: 1.0: 1.5 ratio of weight by stalk charcoal sorbing material, useful active bacteria and urea takes by weighing weight respectively; Useful active bacteria and urea are dissolved in the suitable quantity of water; Stir stalk charcoal sorbing material on one side, on one side the even mixed solution that sprays useful active bacteria and urea, after integral body mixes; Air-dry and control moisture is in 5% scope, makes to possess the soil beneficial microorganism and be rich in the stalk charcoal adsorption function type material of oxide of high activity iron.
Embodiment 7
Get a certain amount of (wheat, corn, paddy rice, soybean, cotton, forestry thinnings or waste wood or dry branches and fallen leaves or hill residue or processing of farm products solid slag etc.) carbide stalk charcoal; Press the method for embodiment 1~3; With water-soluble trivalent inorganic molysite saturated solution; The pH value of using corresponding hydrochloric acid or sulfuric acid or nitric acid regulator solution is 5.0~6.0 scopes, and the weight ratio by 100: 0.2~20 is added this spray solution in the stalk charcoal to, fully mixes; The pH value scope of control and regulation mixture is between 6.5~7.5; Mixed frequently, place 1~2 hour, and, made the stalk charcoal adsorption function type material that is rich in oxide of high activity iron 60~80 ℃ of dryings.
Simultaneously, get a certain amount of stalk charcoal, spray an amount of moistening moisture, logical while stirring CO
2Or coal electricity waste gas SO
2Or NO
2Deng sour gas, make the inorganic oxide in the stalk charcoal fully absorb CO
2Or SO
2Be converted into carbonate or sulphate cpd.Afterwards, with stalk charcoal that is rich in oxide of high activity iron and absorption CO
2Or SO
2Or NO
xBe rich in the stalk charcoal of carbonate or sulfate or nitrate compound; Weight ratio by 1: 0.2~100 is mixed; Add the bonding adjustment agent of low amounts of dust (promptly contain in 0.5%~5% urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane and the polyvinyl alcohol one or more); After fully mixing; Dry under 60~80 ℃, make the stalk charcoal adsorption function type snow melt material that is rich in potassium chloride (or potassium nitrate or potassium sulfate) and potash inorganic salts such as (or saleratus) with oxide of high activity iron.
The above is merely the preferable implementation of the present invention; But protection scope of the present invention is not limited thereto; The present invention has many distortion and variation and does not break away from spirit of the present invention; All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.The calcium salt or magnesium salts of for example in the foregoing description, giving an example, the salt that belongs to other metal in the alkali earth metal series also is fine, and considers that just reducing cost of material reaches the problems such as harmful effect to environment, and calcium salt or magnesium salts are preferred.Equally, except molysite, the salt of metals such as manganese, nickel, copper, zinc, aluminium also is fine, and considers that just reducing cost of material reaches the problems such as harmful effect to environment, and molysite is preferred.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.