CN108570326A - Composition and its preparation method and application for in-situ passivation acid soil heavy metal - Google Patents
Composition and its preparation method and application for in-situ passivation acid soil heavy metal Download PDFInfo
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- CN108570326A CN108570326A CN201810499577.XA CN201810499577A CN108570326A CN 108570326 A CN108570326 A CN 108570326A CN 201810499577 A CN201810499577 A CN 201810499577A CN 108570326 A CN108570326 A CN 108570326A
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- 239000002689 soil Substances 0.000 title claims abstract description 79
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 56
- 238000002161 passivation Methods 0.000 title claims abstract description 42
- 239000002253 acid Substances 0.000 title claims abstract description 20
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002028 Biomass Substances 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 241000209094 Oryza Species 0.000 claims abstract description 24
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 24
- 235000009566 rice Nutrition 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 19
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229920005550 ammonium lignosulfonate Polymers 0.000 claims abstract description 17
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 17
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 240000008042 Zea mays Species 0.000 claims description 17
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 17
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 17
- 235000005822 corn Nutrition 0.000 claims description 17
- 241000209140 Triticum Species 0.000 claims description 15
- 235000021307 Triticum Nutrition 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 229910052745 lead Inorganic materials 0.000 abstract description 22
- 229910052793 cadmium Inorganic materials 0.000 abstract description 21
- 239000011573 trace mineral Substances 0.000 abstract description 7
- 235000013619 trace mineral Nutrition 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000010903 husk Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 34
- 238000012545 processing Methods 0.000 description 34
- 241000196324 Embryophyta Species 0.000 description 26
- 238000000034 method Methods 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 239000008139 complexing agent Substances 0.000 description 8
- 239000003337 fertilizer Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000536 complexating effect Effects 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- PLZFHNWCKKPCMI-UHFFFAOYSA-N cadmium copper Chemical compound [Cu].[Cd] PLZFHNWCKKPCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 210000000170 cell membrane Anatomy 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000009920 chelation Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 229930002875 chlorophyll Natural products 0.000 description 2
- 235000019804 chlorophyll Nutrition 0.000 description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- -1 CEC Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 244000038559 crop plants Species 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000701 toxic element Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Pest Control & Pesticides (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
For the composition and its preparation method and application of in-situ passivation acid soil heavy metal, it is made of by weight following raw material:30~80 parts of biomass ash, 3~50 parts of rice hull carbon, 3~30 parts of ammonium lignosulphonate, 5~30 parts of ferrous sulfate.The present invention is acted synergistically with multicomponents such as biomass ash, rice hull carbon, ammonium lignosulphonate, ferrous sulfate, and research and development heavy metal Cd, Pb in-situ passivation agent promote soil pH value, while providing abundant middle trace element for soil, promote the yield and quality of crops.It solves the problem of environmental pollutions such as biomass ash stacking, dust and the high ph-values of biomass power plant generation, realizes the comprehensive utilization of the waste resources such as biomass ash, rice husk.
Description
Technical field
The invention belongs to technical field of soil remediation, and in particular to be used for the composition of in-situ passivation acid soil heavy metal
And its preparation method and application.
Background technology
Due to cropping pattern, inorganic fertilizer a large amount of applications, the discharge of trade waste, indiscriminate use of pesticide and weather etc. because
The influence of element, China's heavy metal in soil is seriously polluted at present, and on the rise.China is by the weight such as cadmium, arsenic, chromium, lead at present
The nearly 20.0*10 of cultivated area of metallic pollution3km2, account for about the 1/5 of total area under cultivation;Wherein Industrial " three Waste " pollution arable land
10.0*103km2, the farmland area of sewage irrigation oneself reach 3.3*103km2.Heavy metal pollution brings following harm:(1) serious
Economic loss, annual just more than 1,000 ten thousand tons of underproduction grain due to heavy metal pollution in the whole nation, serious heavy metal pollution can lead to farming
The object underproduction is even had no harvest, in addition also up to 12,000,000 tons or more every year of contaminated by heavy metals grain, adds up to economic loss at least
Reach 20,000,000,000 yuan or more.(2) seriously affect crops quality, there are many good fortune in the foods such as grain, vegetables and fruit in place,
The content of beary metal such as chromium, arsenic, lead are exceeded and close to critical value.(3) health is seriously endangered, heavy metal is in plant (work) object
Accumulation, and be enriched in human body and animal body by food chain, human and livestock health is endangered, cancer and Other diseases etc. are caused.
China's acid soil far surpasses 300,000,000 mu, and soil is even on the south the Changjiang river is acidified for acidity, especially Soils In Hunan Province, heavy metal
It is seriously polluted.The pH value of most of acid soil is less than 5.5, and some is even lower than 4.5.Soil acidification is brought to endanger as follows:
(1) cation exchange capacity (CEC) (CEC) and salt loading degree reduce, and soil fertility is caused to decline;(2) promote other nutrient (ratios
Such as phosphorus) fixation, substantially reduce the effective rate of utilization of P elements;(3) promote certain toxic element (such as heavy metals and aluminium ion
Deng) release, activation, dissolution, contaminated soil and water environment, or even threaten health;(4) inhibit soil beneficial microorganism
Growth influences the decomposition of the soil organism and the cycle of C, N, P and S in soil;As non-regeneration energy crisis increasingly sharpens,
Biomass generation rapidly develops in China, and more than 665, whole nation biomass electric power plant produces biomass ash per year up to 26,600,000 tons at present
More than, processing mode only stack by simple landfill or leased land at present, causes seriously to pollute to ambient atmosphere, soil, water.
Heavy metal in soil method for governing pollution mainly has:Soil agrochemistry improves control methods, gongwu chemical method and life
Object restorative procedure, gongwu chemical method are suitble to the soil pollution of processing plant, processing cost high.Biological renovation method not from
Soil radical change is administered, and is not a kind of long-term administering method.Soil agrochemistry improves control methods by adjusting soil pH value, organic
Matter, CEC, soil water grading factors improve its biological effectiveness, an abatement huge sum of money to change the water solubility of heavy metal in soil
Belong to contamination hazard, it is at low cost, it is suitble to farmland to administer heavy metal.But key is how the amount of searching out is big, the raw material of stable quality.
The product that the country adjusts soil pH mainly uses quick lime, and quick lime is the natural mineral matter burnt into stone,
Production process consumes mass energy, and chronic administration, soil hardening can be caused by supplementing a large amount of Ca elements, if discontinuous use, soil acid
Change even more serious, while the uniform content stability of heavy metal is also be worth discussion the problem of in national quick lime.
105670636 A of Chinese invention CN it is a kind of repair cadmium copper pollution acid soil passivating material and preparation method and
Using the pH 10~13 of passivating material, raw material is biomass power plant ash, lime, rock phosphate in powder under conditions of not adding adhesive
Balling-up, the heavy metal cadmium copper being passivated in acid soil;106010542 A one kind of Chinese invention CN is used for heavy-metal contaminated soil
Sludge organism charcoal of reparation and preparation method thereof prepares sludge base charcoal using municipal sludge and palygorskite mixing gasifying, makees
For heavy metal pollution soil-repairing agent, heavy metal activity is reduced just with the adsorptivity of charcoal;Chinese invention CN
The reparation conditioner and preparation method thereof of 103242849 A copper cadmium pollution acid soils, utilizes organic fertilizer, quick lime and nanometer hydroxyl
Base apatite prepares the reparation conditioner for repairing copper cadmium pollution.These invention material therefors and principle be with the present invention not
Together, the present invention improves the pH value of soil with the middle trace element in biomass ash, improves soil physico-chemical property, for a passivation huge sum of money
Category creates conditions;Charcoal in rice hull carbon and contained active SiO itself2After plant absorption, silicified cell is formed with plant cell,
The intensity of plant cell wall is improved, permeability of cell membrane is reduced, inhibits absorption of the plant to heavy metal Cd, Pb, Cr etc.;Lignin
Ichthyodin complexing reduces the activity of Cd, Pb;Reducing agent FeSO4Middle Fe2+It is adsorbed to form iron film by root system of plant in the soil, hinder
Hinder contact of the heavy metal ion with root system of plant;Make Cr6+It is converted into Cr3+, the activity of heavy metal Cr is reduced, and the present invention is passivated
The pH value of material is 10~13, has the compound collaboration passivation heavy metal-polluted soil of a variety of principles, better.
Biomass ash be biomass power plant generate waste, pH value 10~13, main component be k, Si, Ca, Mg,
The metal oxides such as Fe, Cu, Zn, Mn, B, this dvielement be plant growth must and the middle trace element that lacks in soil, contain
Amount ratio with it is almost the same needed for plant, the pH value of soil can be improved, while having restored the metal cation element in soil, it is right
The liveness of heavy metal-passivated ion plays the role of long-term, stable;Meanwhile the active SiO in biomass ash2It is absorbed by plants
Afterwards, silicified cell is formed with plant cell, improves the intensity of plant cell wall, reduce permeability of cell membrane, inhibit plant counterweight
The absorption of metal Cd, Pb, Cr etc., play passivation.
Rice hull carbon is the byproduct that rice production factory generates, it is allowed to be carbonized under anaerobic state, generates rice hull carbon, main
Ingredient is activated carbon and SiO2;(1) activated carbon has adsorptivity, hinders the absorption of heavy metal in soil Cd, Pb, promotes in soil
The breeding and growth of microorganism;(2) activity SiO2It is absorbed by plants, forms silicified cell with plant cell, improve plant cell
The intensity of wall reduces permeability of cell membrane, inhibits absorption of the plant to heavy metal Cd, Pb, plays passivation.
Ammonium lignosulphonate is aromatic series macromolecular compound, has complexing, chelation, is carried out to heavy metal Cd, Pb
Complexing, reduces activity, plays passivation;The metal cations such as Ca, Mg, Fe, Cu, Zn, Mn simultaneously and in biomass ash
Complexing, reduction outflow with water, micro- utilization rate in raising.
Ferrous sulfate (FeSO4) function:(a)Fe2+It is adsorbed to form iron film by root system of plant in the soil, hinders heavy metal
Contact of the ion with root system of plant;(b)Fe2+Make Cr6+It is reduced to Cr3+, reduce the activity and toxicity of heavy metal Cr;(c)SO4 2-With
Pb2+Form the PbSO for being slightly soluble in water4, play passivation;(d) it is that soil supplements ferro element, promotes the formation of chlorophyll.
It is acted synergistically, is researched and developed in soil using multicomponents such as biomass ash, rice hull carbon, ammonium lignosulphonate and ferrous sulfate
Heavy metal Cd, Pb In-situ reaction passivating agent products are domestic initiations.
Invention content
The technical issues of solution:The present invention is provided to the composition of in-situ passivation acid soil heavy metal and its preparation sides
Method and application.The present invention is acted synergistically with multicomponents such as biomass ash, rice hull carbon, ammonium lignosulphonate, ferrous sulfate, research and development weight
Metal Cd, Pb in-situ passivation agent promotes soil pH value, while providing abundant middle trace element for soil, promotes crops
Yield and quality.Solve the problem of environmental pollutions such as biomass ash stacking, dust and the high ph-values of biomass power plant generation, it is real
The comprehensive utilization of the waste resources such as biomass ash, rice husk is showed.
Technical solution:For the composition of in-situ passivation acid soil heavy metal, it is made of by weight following raw material:It is raw
30~80 parts of substance ash, 3~50 parts of rice hull carbon, 3~30 parts of ammonium lignosulphonate, 5~30 parts of ferrous sulfate.
Preferably, it is made of by weight following raw material:50 parts of biomass ash, 25 parts of rice hull carbon, ammonium lignosulphonate 10
Part, 15 parts of ferrous sulfate.
The preparation method of the above-mentioned composition for in-situ passivation acid soil heavy metal, step are:(1) biomass ash,
Rice hull carbon, ammonium lignosulphonate, ferrous sulfate are for use after puddling;(2) mixture of step (1) is removed into iron by iron remover, it is defeated
It send to comminutor;(3) the semi-finished product drying cooling after being granulated, is made after screening packing.
The above-mentioned composition for in-situ passivation acid soil heavy metal is in preparing corn or wheat planting passivator
Application.
Advantageous effect:(1) biomass ash be biomass power plant waste, pH value 10~13, main component k,
The metal oxides such as Si, Ca, Mg, Fe, Cu, Zn, Mn and B, this dvielement is that plant growth is required and soil is micro- in being lacked
Ratio needed for secondary element, content ratio and plant is almost the same, is the quality raw materials of heavy metal-passivated Cd, Pb.(2) rice husk
Activated carbon adsorption function in charcoal hinders Cd, Pb movement, plays passivation, at the same promote the breeding of Soil Microorganism with
Growth;Activity SiO in rice hull carbon2It is absorbed by root system of plant, forms silicified cell with plant cell, improve the strong of plant cell wall
Degree reduces permeability of cell membrane, inhibits absorption of the plant to heavy metal Cd, Pb, plays passivation.(3) ammonium lignosulphonate
It is macromolecular aromatic compound, there is complexing, chelation and heavy metal Cd, Pb complexings, reduce the activity of Cd, Pb;Simultaneously
With the cation complex of the elements such as Ca, Mg, Fe, Cu, Zn, Mn in biomass ash, promotes the absorption of plant, reduce and be lost in, carry
Senior middle school's trace element utilization rate.(4) ferrous sulfate FeSO4The PbSO for being slightly soluble in water is formed with Pb ions4, passivation is played, is made
Cr6+It is reduced to Cr3+, the activity and toxicity of heavy metal Cr are reduced, iron fertilizer is filled to plant, promotes the formation of chlorophyll.
Description of the drawings
Fig. 1:Corn planting heavy metal in soil Cd, Pb concentration trend chart;
Fig. 2:Wheat planting heavy metal in soil Cd, Pb concentration trend chart;
Fig. 3:Crop plants corn, wheat yield trend chart.
Specific implementation mode
Following embodiment only technical concepts and features to illustrate the invention, its object is to allow person skilled in the art
It is to can understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent transformation or modification that Spirit Essence is done, should be covered by the protection scope of the present invention.
Embodiment 1
Preparation method:50 parts of biomass ash, 25 parts of rice hull carbon, 10 parts of ammonium lignosulphonate, 15 parts of ferrous sulfate.
(1) biomass ash, rice hull carbon, ammonium lignosulphonate, ferrous sulfate are puddled, for use;
(2) mixture of step (1) is removed into iron by iron remover, is delivered to comminutor;
(3) it is put in storage after the semi-finished product drying, cooling, screening, packing after being granulated.
1 test objective
In order to verify the passivator field using effect of different formulations, applicant the Anhui Province Linquan County cities and towns Ambassadors corn,
It is tested on wheat crop, verifies its effect and economic benefit, be that heavy metal Cd, the large area of Pb passivator push away from formula and dosage
Wide application provides scientific basis.
2 profile tests
2.1 for examination place and edaphic condition
Test site selects in the Linquan County cities and towns Ambassadors, and soil is clay, and soil status see the table below 1.
Table 1 tests preceding plot Analysis on Soil Nutrients result
2.2 for studying object
Two kinds of crop tests, corn, magnificent Anhui 267;Wheat, Anhui wheat 38.
2.3 for examination fertilizer and passivator
The grand ternary compound fertilizer of 45% Anhui brightness (28:6:6) 40%, (25:12:8) 45%, apply the passivation of different formulations heavy metal
Agent.
2.4 test recipes design
Experiment sets 5 kinds of processing, respectively handles 3 repetitions, random district's groups arrangement.Each processing test area 100m2。
Experimental field block length is rectangular, and the small ridge of plastic film is done in each minizone of corn, single to fill single, prevents liquid manure between different disposal
It exchanges, processing setting is as follows:
2 passivator of table, fertilizer formula and use scale
Experiment is corn, wheat, is come into effect from corn, and two kinds of crop processing are identical.
The experiment dosage managed everywhere in passivator of the present invention is 150kg/ mus, and basic nursery is identical, other agricultures respectively handled
Thing measure is consistent, keeps single difference.
2.5 corn trials
Corn applied fertilizer on June 1st, 2015 and passivator, fertilizer and passivator dosage are carried out by upper table;June 6 corn
Sowing, September harvest on the 16th
Soil physical and chemical property, production statistics table under table 3, corn different formulations treatment conditions
From table 3 it is observed that there are pole significant differences between control 1 and processing 5 by heavy metal in soil Cd, Pb:
(1) it is passivated Cd:Processing 2 compared with control 1, has passivation to processing 5 to heavy metal Cd, from passivation effect point
Analysis, as multicomponent complexing agent acts synergistically, passivation effect rises, and 5 complexing agent passivation effects of processing are best, and available state declines
88.14%;
(2) it is passivated Pb:Processing 2 compared with control 1, has passivation to processing 5 to heavy metal Pb, from passivation effect point
Analysis, as multicomponent complexing agent acts synergistically, passivation effect is more and more excellent, and 5 complexing agent passivation effects of processing are best, under available state
It drops up to 89.55%;
(3)pH:Processing 2 increases to processing 5 and all to acid soil pH, and effect most preferably handles 3, promotes 0.8,
It handles 5pH and improves 0.4.
(4) yield:Processing 2 all increased to processing 5 with comparison, yield is compareed, 4 volume increase 34.95% of processing, processing 5
Volume increase 35.39%, effect is more satisfactory.
Corn trials:Formula is the composite passivant of biomass ash+rice hull carbon+ammonium lignosulphonate+ferrous sulfate to soil
Heavy metal Cd, Pb passivation effects are best in earth, while 35.59% or more corn yield increasing.
2.6 wheats test process
Wheat is administered fertilizer and passivator on October 20th, 2015 by table 1;On October 25th, 2015 wheat cultivation,
On June 2nd, 2016 harvests.
Soil biology character and production statistics table under table 4, wheat different formulations treatment conditions
As can be seen from Table 4, there are pole significant differences between control 1 and processing 5 by heavy metal in soil Cd, Pb:
(1) it is passivated Cd:Processing 2 is compared to processing 5 with compareing 1, has passivation to heavy metal Cd, from passivation effect point
Analysis, as multicomponent complexing agent acts synergistically, passivation effect is more and more obvious, and 5 composite passivant effects of processing are best, available state
Fall to 84.52%;
(2) it is passivated Pb:Processing 2 compared with control 1, has passivation to processing 5 to heavy metal Pb, from passivation effect point
Analysis, as multicomponent complexing agent acts synergistically, passivation effect is more and more obvious, and 5 complexing agent passivation effects of processing are best, available state
Decline up to 89.94%;
(3)pH:Processing 2 all increases to processing 5 with 1 comparison, soil pH is compareed, and effect most preferably handles 3, pH and carries
1.0 are risen, processing 5pH improves 0.3.
(4) yield:Processing 2 has increase, 4 volume increase 20.00% of processing, processing 5 to increase to processing 5 with 1 comparison, yield is compareed
Production 19.61%, effect is more satisfactory.
Wheat is tested:Formula is that the multicomponent collaboration of biomass ash+rice hull carbon+ammonium lignosulphonate+ferrous sulfate is compound
Passivator is best to heavy metal in soil Cd, Pb passivation effect, while wheat increase yield 19.61%.
3 conclusions
The heavy metal deactivator of a variety of different formulations of this experiment is tested, and is analyzed and is tied from table 3, table 4 and Fig. 1, Fig. 2, Fig. 3
Fruit:Corn is in wheat experiment, and each group of formula has passivation effect, and yield increases, but handles the compound of 5 multicomponents collaboration
Best results promote the pH value of soil with the middle trace element in biomass ash, create conditions to be heavy metal-passivated, while again multiple
Close the synergistic effects such as rice hull carbon, complexing agent, reducing agent;Heavy metal in soil Cd available states are declined up to 88.14% on corn,
Pb available states decline 89.55%, and soil pH promotes 0.4, and yield increases by 35.59%.Have to heavy metal in soil Cd on wheat
It imitates state to decline up to 84.52%, Pb available states decline 52.10%, soil pH promotes 0.3, and yield increases by 89.94%.
It is formulated the multicomponents such as biomass ash, rice hull carbon, ammonium lignosulphonate, ferrous sulfate and cooperates with compound acid soil weight
Matal deactivator provides middle trace element for soil, improves soil physico-chemical property, promotion soil pH value, heavy metal-passivated Cd, Pb
Activity and output increased have obvious effect, have popularizing application prospect.
Claims (4)
1. the composition for in-situ passivation acid soil heavy metal, it is characterised in that be made of by weight following raw material:It is raw
30~80 parts of substance ash, 3~50 parts of rice hull carbon, 3~30 parts of ammonium lignosulphonate, 5~30 parts of ferrous sulfate.
2. being used for the composition of in-situ passivation acid soil heavy metal according to claim 1, it is characterised in that by following original
Material forms by weight:50 parts of biomass ash, 25 parts of rice hull carbon, 10 parts of ammonium lignosulphonate, 15 parts of ferrous sulfate.
3. the preparation method described in claims 1 or 2 for the composition of in-situ passivation acid soil heavy metal, it is characterised in that
Step is:(1)Biomass ash, rice hull carbon, ammonium lignosulphonate, ferrous sulfate are for use after puddling;(2)By step(1)Mixing
Object removes iron by iron remover, is delivered to comminutor;(3)Semi-finished product drying cooling after granulation, is made after screening packing.
4. the composition described in claims 1 or 2 for in-situ passivation acid soil heavy metal is preparing corn or wheat planting
With the application in passivator.
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