CN110184067A - A kind of repairing polluted soil modifying agent and modification method - Google Patents
A kind of repairing polluted soil modifying agent and modification method Download PDFInfo
- Publication number
- CN110184067A CN110184067A CN201910477208.5A CN201910477208A CN110184067A CN 110184067 A CN110184067 A CN 110184067A CN 201910477208 A CN201910477208 A CN 201910477208A CN 110184067 A CN110184067 A CN 110184067A
- Authority
- CN
- China
- Prior art keywords
- soil
- modifying agent
- bermuda grass
- zeolite
- lime
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002689 soil Substances 0.000 title claims abstract description 251
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 112
- 238000002715 modification method Methods 0.000 title abstract description 22
- 244000052363 Cynodon dactylon Species 0.000 claims abstract description 92
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 73
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 claims abstract description 41
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 36
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 36
- 239000004571 lime Substances 0.000 claims abstract description 36
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 35
- 239000010457 zeolite Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 13
- 230000006872 improvement Effects 0.000 claims description 11
- 206010010254 Concussion Diseases 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 230000009514 concussion Effects 0.000 claims description 8
- 239000012153 distilled water Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 239000003516 soil conditioner Substances 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract description 51
- 229910052787 antimony Inorganic materials 0.000 abstract description 48
- 241000196324 Embryophyta Species 0.000 abstract description 36
- 239000004615 ingredient Substances 0.000 abstract description 28
- 238000005516 engineering process Methods 0.000 abstract description 17
- 238000003900 soil pollution Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 238000002161 passivation Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 29
- 230000000694 effects Effects 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 230000008439 repair process Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000002956 ash Substances 0.000 description 9
- 239000011734 sodium Substances 0.000 description 9
- 210000003608 fece Anatomy 0.000 description 8
- 239000010871 livestock manure Substances 0.000 description 8
- 239000003895 organic fertilizer Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000035558 fertility Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000001079 digestive effect Effects 0.000 description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000004021 humic acid Substances 0.000 description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[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 XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 3
- 238000005067 remediation Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 240000005002 Erythronium dens canis Species 0.000 description 2
- 244000166124 Eucalyptus globulus Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 240000006024 Lactobacillus plantarum Species 0.000 description 2
- 235000013965 Lactobacillus plantarum Nutrition 0.000 description 2
- 241000878006 Miscanthus sinensis Species 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229940072205 lactobacillus plantarum Drugs 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 244000283207 Indigofera tinctoria Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- DMGNFLJBACZMRM-UHFFFAOYSA-N O[P] Chemical compound O[P] DMGNFLJBACZMRM-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- LWNCNSOPVUCKJL-UHFFFAOYSA-N [Mg].[P] Chemical compound [Mg].[P] LWNCNSOPVUCKJL-UHFFFAOYSA-N 0.000 description 1
- YMKIRWHSXOBLCF-UHFFFAOYSA-N [Mg].[P].[Ca] Chemical compound [Mg].[P].[Ca] YMKIRWHSXOBLCF-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- FAWGZAFXDJGWBB-UHFFFAOYSA-N antimony(3+) Chemical compound [Sb+3] FAWGZAFXDJGWBB-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002881 soil fertilizer Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
-
- 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
Abstract
The present invention relates to a kind of modifying agent of repairing polluted soil and modification methods; the modifying agent is by 1~3 part of calcium magnesium phosphate; 0.5~7 part of lime; any one or a few changed in 1.5~12 parts of ingredients of surname zeolite mixes; by the way that modifying agent is mixed with soil; passivation, the purpose that repairing polluted soil is realized in modification methods such as grown on soil Bermuda grass; the present invention combines chemical technology and plant technology; it can not only play the role of soil protection structure; soil pollution caused by antimony is repaired in the case where low cost, moreover it is possible to have the function that beautify the environment.
Description
Technical field
The present invention relates to soil remediation and field of planting, and in particular to a kind of repairing polluted soil modifying agent and improvement side
Method.
Background technique
The rapid development of modern industry keeps the world increasing to the demand of antimony and its compound, causes to antimonial resources
Large scale mining utilize, therefore antimony ore accumulates a large amount of tailings.Lead to the tail of air storage due to lacking effective treatment measures
Mine can discharge a large amount of antimony element under by various external influences.These antimony elements influence mining area nearby residents by food chain
Health, and great pollution is caused to Near Antimony Mine Area surrounding soil environment.China is used as most important antimony producing country in the world,
Epigentic Geochemistry and antimony pollution study on prevention in relation to antimony are also very weak.As people to the understanding of soil ecosystem and grind
Study carefully intensification, people increasingly pay attention to soil to ecology, the purification of environment, repair ability and soil to animals and humans health
It influences.The variation of soil quality directly influences the variation of global climate, the variation of ecological environment, disappearance of species etc., therefore,
The research of soil quality has become the hot spot of soil science research at present.
There is presently no finding to administer good method about antimony pollution, common are in the past physics, chemistry, microorganism,
The technologies such as plant, these single technologies processing contaminated soil efficiency be not it is very high, as phytoremediation technology growth cycle is long；
Chemical reagent may act on lower significant effect the short time, but under prolonged external influence, it is possible to can be released again out；
The condition of microbial technique is more harsh, is difficult to meet the requirements under general environment；The soil moved in improve the original of physical technique turns over and soil removal and replacement method
Costly, project amount is big, soil texture can be destroyed and make soil fertility decline etc..
Number of patent application in the prior art: CN201410277079.2, denomination of invention: compound heavy-metal contaminated soil changes
Good dose and its application and method of administration, the proportion of Ingredients Weight are as follows: plant ash: calcium magnesium phosphate: quick lime: zeolite: hydroxyl phosphorus
Lime stone: organic fertilizer=(0.3-1.1): (0.1-1.2): (0.4-2.1): (0.1-0.6): (0.008-0.06): (0.4-1.2).
Invention combines the organic fertilizer such as plant ash, organic fertilizer mutually to improve the fertility of contaminated soil, persistently strengthens the reparation of polluted soil,
It is stability with higher, good environmentally friendly, low in cost, it can be passivated and repair various heavy contaminated soil,
Soil pollution caused by especially discharging waste residue industrial and mining enterprises has good repairing effect, can reach management goal, and
Secondary pollution will not be generated, is easy to be widely applied.
Number of patent application: CN201410277079.2 has the following defects, and (1) uses zeolite, rather than modified zeolite；
(2) pass through the inorganic components fixed-contaminations such as lime, calcium magnesium phosphate, the phosphate in hydroxyapatite, the potassium carbonate in plant ash
Heavy metal in soil, and mutually improve the fertility of contaminated soil in conjunction with the organic fertilizer such as plant ash, organic fertilizer, but and be not associated with
Bermuda grass pollution administration soil dye, single technology is inefficient in processing contaminated soil, and specification is not recorded the invention and can be repaired
Soil pollution caused by antimony；(3) effect not up to beautified the environment；(4) the modifying agent ingredient used is more, higher cost.
Number of patent application in the prior art: CN201810463984.5, a kind of denomination of invention: acid soil heavy metal pollution
Ecological modifying agent and preparation method thereof, acid soil heavy metal pollution ecological modifying agent are made of raw material from the following weight: stone
30-60 parts of ashes, 20-50 parts of zeolite, 10-20 parts of lactobacillus plantarum, 8-16 parts of bio-bacterial manure, 5-15 parts of nano magnesia, indigo plant
6-17 parts of algae powder, 12-25 parts of ardealite powder, 10-20 parts of calcium magnesium phosphate, silica gel embed 10-20 parts of yeast thallus, calcium aluminate
10-20 parts, 20-30 parts of gangue, 16-28 parts of Humic Acid Resin, powdered activated carbon 10-22 parts wooden, sodium base modified alta-mud
15-30 parts.Acid soil heavy metal pollution ecological modifying agent of the present invention, at low cost, environmental pollution is small, can repair the weight such as antimony
The heavy metal pollution of soil of metallic pollution can reduce the toxic of heavy metal in soil to guarantee environment sustainable development,
Soil fertility can also be increased, ASI systematic approach can be improved.
Number of patent application CN201810463984.5 has the following defects, and (1) is not associated with Bermuda grass and administers the heavy metals such as antimony
Polluted Soil dye, single technology is in the effect that is inefficient, and not up to beautifying the environment of the heavy-metal contaminated soils such as processing antimony；
(2) the modifying agent ingredient used is more, higher cost；(3) modifying agent preparation method is cumbersome.
Number of patent application in the prior art: 201810032232.3, denomination of invention: utilize the compound improvement of charcoal-barnyard manure
The method that agent and plant separation layer stablize polymetallic ore mountain refuse dump heavy metal, the invention discloses multiple using charcoal-barnyard manure
It closes modifying agent and plant separation layer stablizes the method for polymetallic ore mountain refuse dump heavy metal, the present invention is by exploring modifying agent research and development
It is screened with vegetation cropping pattern, improvement and stablizing effect and leguminous seeds, business herbaceous seeds in conjunction with soil conditioner,
The oxidation of heavy metallic mineral (such as Pb, Zn, Cu, Cd), and a huge sum of money can be effectively suppressed in the fine and close separation layer that Chinese silvergrass and eucalyptus are formed
Belong to the H+ plasma diffusing W,Mo of sum, reduces the loss of heavy metal in refuse dump.
Number of patent application 201810032232.3 has the following defects, only effectively inhibit heavy metallic mineral (such as Pb, Zn,
Cu, Cd) oxidation and heavy metal sum H+ plasma diffusing W,Mo, reduce the loss of heavy metal in refuse dump, but can not play
The effect of reparation.
To solve the above problems, the present invention combines chemical technology and plant technology, soil protection knot can not only be played
The effect of structure repairs soil pollution caused by the heavy metals such as antimony, moreover it is possible to have the function that beautify the environment in the case where low cost.
Summary of the invention
The object of the present invention is to provide a kind of modifying agents of contaminated soil.
Another object of the present invention is to provide a kind of modification method of contaminated soil.
Particular content of the present invention is as follows:
Soil conditioner of the present invention is mixed by any one or a few in following component: calcium magnesium phosphate 1~3
Part, 0.5~7 part of lime, change 1.5~12 parts of surname zeolite.
Preferably, modifying agent of the present invention is made of according to the following ratio following component: 1 part of calcium magnesium phosphate, lime 2.5
Part, change 5 parts of surname zeolite.
It is further preferred that modifying agent of the present invention is made of according to the following ratio following component: 1 part of lime, modified boiling
2 parts of stone.
Still more preferably, modifying agent of the present invention is made of according to the following ratio following component: 1 part of calcium magnesium phosphate,
5 parts of modified zeolite.
Still more preferably, modifying agent of the present invention is made of according to the following ratio following component: 1 part of lime, calcium and magnesium
2.5 parts of phosphate fertilizer.
Modified zeolite of the present invention is added the 1mol/L's of 500ml the preparation method comprises the following steps: weigh 50g raw ore zeolite
In the beaker of Nacl solution, 25 DEG C of 20~28h of constant temperature mixing concussion, then clean with distilled water flushing, 105 DEG C of bakings in baking oven
Dry 3~7h, obtains Na type modified zeolite, is put in spare in drying box.
Preferably, modified zeolite of the present invention is added 500ml's the preparation method comprises the following steps: weigh 50g raw ore zeolite
In the beaker of the Nacl solution of 1mol/L, 25 DEG C of constant temperature mixing concussions are for 24 hours, then clean with distilled water flushing, 105 in baking oven
DEG C drying 5h, obtain Na type modified zeolite, be put in spare in drying box.
The partial size of modified zeolite of the present invention be 5mm, the lime, calcium magnesium phosphate powder partial size be respectively less than 100 mesh.
Improvement of contaminated soil method of the present invention specifically:
1) 2~20g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%-80%.
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Preferably, improvement of contaminated soil method of the present invention specifically:
1) 17g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%.
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Source of the present invention:
The slag around Near Antimony Mine Area is retained in after mining mostly all without being directly exposed to mine by suitable processing
Area's peripheral ground soil, causes the tenor in soil obviously to rise, this can not only pollute farmland, make farmland by
It is discarded, the problem of arable land lacks is exacerbated, and long-term accumulation can also seriously endanger the health of human body.Therefore, in order to solve antimony
The problem of contaminated soil, the present invention add modifying agent in the soil and plant Bermuda grass to improve soil physico-chemical property and soil knot
Structure.By choosing 1~3 part of calcium magnesium phosphate, 0.5~7 part of lime, any one or a few changed in 1.5~12 parts of surname zeolite is mixed
Conjunction is tested, and the present invention uses zeolite for modified zeolite instead, soil pH can be improved, and utilize the porous aluminosilicate of itself
Crystal adsorbs the metallic antimony in soil, reaches suction-operated；Confirmed by repetition test, with not plus modifying agent compared with, soil and
Antimony content in plant decreases, and increases to plant height, the dry weight of Bermuda grass, wherein three kinds of modifying agent mixing are added
Reclamation result it is best；At four months, Bermuda grass aerial part antimony content is to apply calcium magnesium phosphate+modified zeolite to handle
Highest, Bermuda grass antimony content is ground > underground, and plant is all greater than 0.5 from the transfer ratio that underground is transferred to ground, and
At six months, the antimony content accumulated in Bermuda grass is underground > ground.Therefore, it is relatively strong for having that modifying agent and Bermuda grass are added
Repair, therefore the present invention choose 1~3 part of calcium magnesium phosphate, 0.5~7 part of lime, change in 1.5~12 parts of surname zeolite appoint
Meaning one or more are mixed and made into modifying agent, and combine the soil of Bermuda grass corporation governance antimony pollution, i.e., by chemical technology and plant
Object technology combines, and can not only play the role of soil protection structure, and the heavy metals such as antimony are repaired in the case where low cost and are caused
Soil pollution, moreover it is possible to have the function that beautify the environment.
The invention has the advantages that:
The present invention is compared with prior art:
1, number of patent application in the prior art: CN201410277079.2, denomination of invention: compound heavy-metal contaminated soil
Modifying agent and its application and method of administration, the invention has the following deficiencies: that (1) uses zeolite, rather than modified zeolite；(2)
Pass through the inorganic components fixed-contamination soil such as the phosphate in lime, calcium magnesium phosphate, hydroxyapatite, potassium carbonate in plant ash
In heavy metal, and mutually improve the fertility of contaminated soil in conjunction with the organic fertilizer such as plant ash, organic fertilizer, but and unbonded dog tooth
Radical cure reason Polluted Soil dye, single technology is inefficient in processing contaminated soil, cannot repair pollution caused by antimony；(3) and not
Have the function that beautify the environment；(4) the modifying agent ingredient used is more, higher cost.
And the present invention can overcome the defect of foregoing invention, specifically: (1) modified zeolite is used, soil can be improved
PH, and using the metallic antimony in the porous aluminosilicate crystal of itself absorption soil, reach suction-operated；(2) of the invention by calcium
Magnesium-phosphorus fertilizer, lime, any one in three kinds of ingredients of modified zeolite combine Bermuda grass to administer the pollutions of the heavy metals such as slag antimony, at
It is point less, therefore the cost for treating slag antimony pollution is smaller.(3) present invention, i.e., will be chemical due to impurely planting Bermuda grass
Technology and plant technology combine, and can not only play the role of soil protection structure, and the weight such as antimony is repaired in the case where low cost
Soil pollution caused by metal, moreover it is possible to have the function that beautify the environment.
2, number of patent application in the prior art: CN201810463984.5, denomination of invention: a kind of acid soil is heavy metal-polluted
Ecological modifying agent and preparation method thereof is contaminated, has the following deficiencies: that (1) is not associated with Bermuda grass pollution administration soil dye, single technology
It is inefficient in processing contaminated soil, pollution caused by antimony cannot be repaired；(2) and not up to the effect beautified the environment；(3) it uses
Modifying agent ingredient it is more, higher cost；(4) modifying agent also needs to use after the processing of corresponding preparation method, because
This uses cumbersome.
And the present invention can overcome the defect of foregoing invention, specifically: (1) it is of the invention due to impurely planting Bermuda grass,
Chemical technology and plant technology are combined, soil protection structure can not only be played the role of, is repaired in the case where low cost
Soil pollution caused by the heavy metals such as multiple antimony, moreover it is possible to have the function that beautify the environment.(2) present invention has only used calcium magnesium phosphate,
Lime, any one in three kinds of ingredients of modified zeolite, ingredient is less, therefore the cost for treating slag antimony pollution is smaller；(3) originally
Invention directly mixing can be used, easy to use because the method is simple.
3, number of patent application: 201810032232.3, denomination of invention: utilize charcoal-barnyard manure composite modifying agent and plant
The method that separation layer stablizes polymetallic ore mountain refuse dump heavy metal, has the following defects, and only effectively inhibits heavy metallic mineral (such as
Pb, Zn, Cu, Cd) oxidation and heavy metal sum H+ plasma diffusing W,Mo, do not reduce the loss of heavy metal in refuse dump, but not
It can play the role of repairing polluted soil.And the present invention can overcome the defect of foregoing invention, can play and repair through overtesting confirmation
The effect of the soil of heavy metal pollutions such as multiple antimony.
4, the present invention has the advantages that with not plus compared with modifying agent
(1) with not plus compared with modifying agent, the antimony content in soil and plant decreases, to the plant height of Bermuda grass, dry
Weight increases, wherein the reclamation result that the mixing of three kinds of modifying agents is added is best；
At (2) four months, Bermuda grass aerial part antimony content is to apply calcium magnesium phosphate+modified zeolite processing highest, dog
Root of the tooth antimony content is ground > underground, and plant is all greater than 0.5 from the transfer ratio that underground is transferred to ground, and six months
When, the antimony content accumulated in Bermuda grass is underground > ground.Therefore, modifying agent and Bermuda grass is added to have the soil of antimony pollution
There is stronger repair.
(3) Bermuda grass furcation area number of the present invention, ground tiller number, plant height, dry weight are superior to comparative example 1,2,3 and without improvement
Agent.
(4) organic matter of the present invention, pH, conductivity are superior to comparative example 1,2,3 and without modifying agents.
(5) present invention is experimentally verified that the effect of antimony pollution soil remediation better than comparative example 1,2,3 and without modifying agent.
(6) present invention repairs contaminated soil using modifying agent and plant (Bermuda grass), does not destroy the physics and chemistry of soil
Property does not cause secondary pollution, increases the Substantial evaluation of soil, reduces land resource waste.
(7) Bermuda grass of the present invention has enrichment to antimony, and adaptive capacity to environment is stronger, keeps water
Soil, the advantages that beautifying the environment.
Below by specific embodiment, technical solution of the present invention is further illustrated.
Embodiment 1
Ingredient: calcium magnesium phosphate 1g, lime 0.5g change surname zeolite 1.5g.
Modification method:
1) modifying agent of 2g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 2
Ingredient: calcium magnesium phosphate 1g, lime 0.5g change surname zeolite 1.5g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired when Bermuda grass grows into four months and six months respectively and Bermuda grass is measured.
Embodiment 3
Ingredient: calcium magnesium phosphate 1g, lime 0.5g change surname zeolite 1.5g.
Modification method:
1) 17g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 4
Ingredient: calcium magnesium phosphate 3g, lime 7g change surname zeolite 12g.
Modification method:
1) modifying agent of 2g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 5
Ingredient: calcium magnesium phosphate 3g, lime 7g change surname zeolite 12g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 6
Ingredient: calcium magnesium phosphate 3g, lime 7g change surname zeolite 12g.
Modification method:
1) 17g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 7
Ingredient: 1 part of calcium magnesium phosphate, 2.5 parts of lime, change 5 parts of surname zeolite.
Modification method:
1) modifying agent of 2g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 8
Ingredient: calcium magnesium phosphate 1g, lime 2.5g change surname zeolite 5g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 9
Ingredient: calcium magnesium phosphate 1g, lime 2.5g change surname zeolite 5g.
Modification method:
1) 17g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 10
Ingredient: lime 1g, modified zeolite 2g.
Modification method:
1) modifying agent of 2g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 11
Ingredient: lime 1g, modified zeolite 2g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 12
Ingredient: lime 1g, modified zeolite 2g.
Modification method:
1) 15g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 13
Ingredient: calcium magnesium phosphate 1g, modified zeolite 5g.
Modification method:
1) modifying agent of 2g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 14
Ingredient: calcium magnesium phosphate 1g, modified zeolite 5g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 15
Ingredient: calcium magnesium phosphate 1g, modified zeolite 5g.
Modification method:
1) 12g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 16
Ingredient: lime 1g, calcium magnesium phosphate 2.5g.
Modification method:
1) modifying agent of 20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
80%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 17
Ingredient: lime 1g, calcium magnesium phosphate 2.5g.
Modification method:
1) 7g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
Embodiment 18
Modified zeolite preparation method: weighing 50g raw ore zeolite, be added in the beaker of Nacl solution of the 1mol/L of 500ml,
25 DEG C of constant temperature mixing concussion 20h, then clean with distilled water flushing, 105 DEG C of drying 3h, obtain Na type modified zeolite in baking oven,
It is put in spare in drying box.
Embodiment 19
Modified zeolite preparation method: weighing 50g raw ore zeolite, be added in the beaker of Nacl solution of the 1mol/L of 500ml,
25 DEG C of constant temperature mixing concussion 28h, then clean with distilled water flushing, 105 DEG C of drying 7h, obtain Na type modified zeolite in baking oven,
It is put in spare in drying box.
Embodiment 20
Modified zeolite preparation method: weighing 50g raw ore zeolite, be added in the beaker of Nacl solution of the 1mol/L of 500ml,
For 24 hours, then clean with distilled water flushing, 105 DEG C of drying 5h, obtain Na type modified zeolite in baking oven for 25 DEG C of constant temperature mixing concussions,
It is put in spare in drying box.
In order to further prove effectiveness of the invention, inventor has done a series of test, specific as follows:
One, experimental example 1
1, experiment purpose: by adding different types of modifying agent (modified zeolite, lime, calcium and magnesium phosphorus into contaminated soil
Fertilizer) and Bermuda grass is planted to the repairing effect of heavy metal.And compared with comparative example counterweight metallic prosthetic effect.
2, experimental setup:
The present invention: using Bermuda grass seed as experimental material, the contaminated soil that setting antimony concentration is 30mg/kg, the Polluted Soil
Earth is to mix cleaning soil and mine slag by a certain concentration proportion, specific as follows:
With lime (SH), calcium magnesium phosphate (GM), modified zeolite (GF) and in mass ratio example configure lime: calcium magnesium phosphate
(1:2.5), 1kg soil add 7g modifying agent；Calcium magnesium phosphate: modified zeolite (1:5), 1kg soil add 12g modifying agent；Lime: modified
Zeolite (1:2), 1kg soil add 15g modifying agent；Calcium magnesium phosphate: modified zeolite: lime (1:5:2.5) 1kg soil adds 17g to improve
Agent；Blank group forms 8 groups of experiment process altogether, and every group in triplicate.
According to above experimental design, it is (straight that the preparatory soil mixing of each modifying agent of precise is placed on plastic tub
Diameter=7cm, the high H=7cm of basin) in, after ready to balance one month, directly sowing after being impregnated after Bermuda grass seed is carried out disinfection for 24 hours
In basin, selected seed is 10 of the same size.Direct outdoor cultivation is irregularly poured originally according to basin water shortage situation
Water makes soil moisture content be maintained at the 60-80% of field capacity.Acquired after four months corresponding soil and plant sample into
Row analysis measurement.
Comparative example 1:
Number of patent application: CN201410277079.2
Denomination of invention: compound heavy metal contaminated soil conditioner and its application and method of administration
The proportion of Ingredients Weight are as follows: plant ash: calcium magnesium phosphate: quick lime: zeolite: hydroxyapatite: organic fertilizer=(0.3-
1.1): (0.1-1.2): (0.4-2.1): (0.1-0.6): (0.008-0.06): (0.4-1.2).
Soil improvement method: it selects to apply in the soil (region is intermediate pollution region) containing Ag, Cd heavy metal pollution
With this compound heavy metal contaminated soil conditioner, additive amount is 40kg/ mus, balanced soil improvement time 10 days.
Comparative example 2:
Number of patent application: CN201810463984.5, a kind of denomination of invention: acid soil heavy metal pollution ecological modifying agent
And preparation method thereof.
Ingredient: 30-60 parts of pulverized limestone, 20-50 parts of zeolite, 10-20 parts of lactobacillus plantarum, 8-16 parts of bio-bacterial manure, nanometer
5-15 parts of magnesia, 6-17 parts of blue algae powder, 12-25 parts of ardealite powder, 10-20 parts of calcium magnesium phosphate, silica gel embed yeast thallus
10-20 parts, 10-20 parts of calcium aluminate, 20-30 parts of gangue, 16-28 parts of Humic Acid Resin, it is powdered activated carbon 10-22 parts wooden,
15-30 parts of sodium base modified alta-mud.
Soil conditioner preparation method:
S1, each raw material is weighed according to parts by weight；
S2, zeolite, gangue, wooden powdered activated carbon are mixed, are placed in Muffle furnace in 500-550 DEG C of calcining 2-3h,
Cooling, milling obtains mixed-powder A, spare；
S3, by pulverized limestone, nano magnesia, blue algae powder, ardealite powder, calcium aluminate, sodium base modified alta-mud, plant ash
Mixing after dry and be put into blender and stir 25-35min, moves it in crusher be uniformly crushed after mixing evenly,
Obtain mixed powder B；
S4, the mixed powder B of mixed-powder A and S3 made from step S2 are mixed, the deionized water of the quality such as addition surpasses
Sound dispersion, obtains the mixture of ultrasonic disperse processing；
Bio-bacterial manure, microelement, calcium magnesium phosphate, silica gel is added in S5, the mixture handled to step S4 ultrasonic disperse
It is uniformly mixed to embed yeast thallus, Humic Acid Resin, drying process moves back into Squeezinggranulator extrusion granulation, dries.
Comparative example 3
Number of patent application: 201810032232.3；
Denomination of invention: stablize polymetallic ore mountain refuse dump weight using charcoal-barnyard manure composite modifying agent and plant separation layer
The method of metal；
1) polymetallic ore mountain refuse dump topsoil is turned over, by 3~6 tons of application modifying agents per acre, by modifying agent and soil
It mixes；The modifying agent is mixed in proportion by sludge organism charcoal and chicken manure, and wherein sludge organism charcoal dosage is that modifying agent is total
The 8~12% of amount；
2) leguminous seeds, business herbaceous seeds are sowed in step treated soil upwards, and plants Chinese silvergrass and eucalyptus.
3, the preparation of modified zeolite
50g raw ore zeolite is weighed, is added in the beaker of Nacl solution of the 1mol/L of 500ml, (25 degrees Celsius) of constant temperature mixed
Close concussion for 24 hours, it is then clean with distilled water flushing.105 degrees Celsius of drying 5h, obtain Na type modified zeolite, are put in dry in baking oven
It is spare in dry case.
4, detection method
Glass electrode method measures soil pH (water: soil=2.5:1).Pedotheque 4g is weighed in 50ml centrifuge tube, is added
10ml deionized water covers lid and is placed on isothermal vibration device and acutely shakes 5min, removes static 1h and surveys after solution clarification
It is fixed.
Conductivity meter measures conductivity (Tu Shui ratio=1:5).Pedotheque 4g is weighed in 50ml centrifuge tube, 20 is added and takes the photograph
The 20ml water of family name's degree, covers bottle cap, is placed on reciprocating horizontal isothermal vibration device and shakes 30min.Remove tube stand 30min
Afterwards, to be measured.
Potassium bichromate titrimetric method-dilution and diffusion measures the soil organism (OM) content.Soil sample 0.02g is weighed in 500ml's
In triangular flask, 1mol/l (1/6K is accurately added2Cr2O7) for solution 10ml in pedotheque, rotation bottle is allowed to uniformly mixed,
Then concentrated sulfuric acid 20ml is added, triangular flask is slowly rotated into 1min, promotes mixing to guarantee that reagent is sufficiently acted in soil, it is cooling
After be diluted with water to 250ml, add 3-4 drop o-phenanthrolin indicator, then use 0.5mol/l FeSO4Standard solution is supported, end
Point is brick-red.
Soil, plant Sb are using nitric acid+perchloric acid+sulfuric acid (volume ratio 4:1:2) resolution.Weigh soil, vegetative sample
0.2g is placed in 250ml triangular flask, and nitric acid+perchloric acid (4:1) mixed solution 5ml is added, and concentrated sulfuric acid 2ml is then added, and is impregnated
It stands overnight.Next day, in the heating resolution that (has draught cupboard) on electric hot plate to digestive juice in faint yellow or colourless, addition about 20ml
Ultrapure water continues heating and catches up with acid until digestive juice is 0.5-1ml, is transferred to 25ml colorimetric cylinder and constant volume with ultrapure water after cooling.
Absorption 5ml digestive juice is in 10ml colorimetric cylinder respectively, addition 1ml hydrochloric acid, 5% thiourea and ascorbic acid solution 2.5ml, and use is pure
Water is settled to scale, shakes up standby survey.
Atomic fluorescence method (AFS-230E) measurement.National standard reference material (plant: GBW10047 (GSB-25)；Soil:
(GBW07410) quality control when being measured.All samples do corresponding reagent blank, and standard sample measurement result is equal
Within the allowable range.
5, it the results are shown in Table 1-3.
(1) furcation area number, ground tiller number, plant height, dry weight the results are shown in Table 1
1 furcation area number of table, ground tiller number, plant height, dry weight result table
As known from Table 1, Bermuda grass furcation area number of the present invention, ground tiller number, plant height, dry weight are superior to comparative example 1,2,3
And without modifying agent.
(2) organic matter, PH, Conductivity Results are shown in Table 2
2 organic matter of table, pH, Conductivity Results table
As known from Table 2, organic matter of the present invention, PH, conductivity are superior to comparative example 1,2,3 and without modifying agents.
(3) content results of antimony are shown in Table 3 in plant and contaminated soil
Content (the mg.kg of antimony in 3 plant of table and contaminated soil-1) table
Table 3 the result shows that, with not plus modifying agent compared with, the antimony content in soil and plant decreases, to Bermuda grass
Plant height, dry weight increase, wherein be added three kinds of modifying agents mixing reclamation result it is best；At four months, dog tooth
Root aerial part antimony content is to apply calcium magnesium phosphate+modified zeolite processing highest, and Bermuda grass antimony content is ground > underground, and
Plant is all greater than 0.5 from the transfer ratio that underground is transferred to ground, and at six months, the antimony content accumulated in Bermuda grass is
Underground > ground.Therefore, adding modifying agent and Bermuda grass has stronger repair for the soil of antimony pollution.Present invention warp
Test confirms to be better than comparative example 1,2,3 to the effect of antimony pollution soil remediation.
Although above having used general explanation, specific embodiment and test, the present invention is made to retouch in detail
State, but on the basis of the present invention, it can be made it is some modify or improve, this is aobvious and easy to those skilled in the art
See.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Range.
Claims (10)
1. a kind of contaminated soil conditioner, which is characterized in that the modifying agent is by any one or a few mixing in following component
It forms: 1~3 part of calcium magnesium phosphate, 0.5~7 part of lime, changing 1.5~12 parts of surname zeolite.
2. modifying agent according to claim 1, which is characterized in that the modifying agent is by following component group according to the following ratio
At: 1 part of calcium magnesium phosphate, 2.5 parts of lime, change 5 parts of surname zeolite.
3. modifying agent according to claim 1, which is characterized in that the modifying agent is by following component group according to the following ratio
At: 1 part of lime, 2 parts of modified zeolite.
4. modifying agent according to claim 1, which is characterized in that the modifying agent is by following component group according to the following ratio
At: 1 part of calcium magnesium phosphate, 5 parts of modified zeolite.
5. modifying agent according to claim 1, which is characterized in that the modifying agent is by following component group according to the following ratio
At: 1 part of lime, 2.5 parts of calcium magnesium phosphate.
6. modifying agent according to claim 1-4, which is characterized in that the modified zeolite the preparation method comprises the following steps:
50g raw ore zeolite is weighed, is added in the beaker of Nacl solution of the 1mol/L of 500ml, 25 DEG C of constant temperature mixing 20~28h of concussion,
Then clean with distilled water flushing, 105 DEG C of 3~7h of drying, obtain Na type modified zeolite in baking oven, are put in spare in drying box.
7. modifying agent according to claim 6, which is characterized in that the modified zeolite is the preparation method comprises the following steps: weigh 50g original
Mine zeolite is added in the beaker of Nacl solution of the 1mol/L of 500ml, and 25 DEG C of constant temperature mixing concussions for 24 hours, are then rushed with distilled water
Wash clean, 105 DEG C of drying 5h, obtain Na type modified zeolite in baking oven, are put in spare in drying box.
8. modifying agent according to claim 1-5, which is characterized in that the partial size of the modified zeolite is 5mm, institute
State lime, the partial size of calcium magnesium phosphate powder is respectively less than 100 mesh.
9. a kind of method using any one of the claim 1-5 modifying agent improvement soil, which is characterized in that the method tool
Body are as follows:
1) modifying agent of 2~20g is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
60%-80%.
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
10. the method for modifying agent improvement soil according to claim 9, which is characterized in that the method specifically:
1) 17g modifying agent is added in every 1kg soil；
2) modifying agent is mixed with soil, is passivated；
3) after soil is passivated one month, in grown on soil Bermuda grass；
4) it is watered according to soil water shortage situation, so that soil moisture content is maintained at field capacity in its growth course
75%；
5) soil is acquired respectively when Bermuda grass grows into four months and six months and Bermuda grass is measured.
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