CN110283599A - A kind of heavy-metal contaminated soil renovation agent and preparation method thereof - Google Patents
A kind of heavy-metal contaminated soil renovation agent and preparation method thereof Download PDFInfo
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- CN110283599A CN110283599A CN201910615997.4A CN201910615997A CN110283599A CN 110283599 A CN110283599 A CN 110283599A CN 201910615997 A CN201910615997 A CN 201910615997A CN 110283599 A CN110283599 A CN 110283599A
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- contaminated soil
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- 239000002689 soil Substances 0.000 title claims abstract description 84
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 40
- 238000009418 renovation Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000002028 Biomass Substances 0.000 claims abstract description 55
- 239000003610 charcoal Substances 0.000 claims abstract description 31
- 239000005416 organic matter Substances 0.000 claims abstract description 30
- 244000005700 microbiome Species 0.000 claims abstract description 29
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000000855 fungicidal effect Effects 0.000 claims abstract description 27
- 239000000417 fungicide Substances 0.000 claims abstract description 27
- 239000011591 potassium Substances 0.000 claims abstract description 27
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 19
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 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 claims abstract description 14
- 239000004021 humic acid Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 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 claims abstract description 3
- 239000011734 sodium Substances 0.000 claims abstract description 3
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- 241000894006 Bacteria Species 0.000 claims description 16
- 241000193755 Bacillus cereus Species 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 8
- 241000194106 Bacillus mycoides Species 0.000 claims description 7
- 241000233866 Fungi Species 0.000 claims description 7
- 241000237502 Ostreidae Species 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 235000020636 oyster Nutrition 0.000 claims description 7
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 7
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 241001655322 Streptomycetales Species 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- 241000193468 Clostridium perfringens Species 0.000 claims description 5
- 241000589517 Pseudomonas aeruginosa Species 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000002068 microbial inoculum Substances 0.000 claims description 4
- 239000003337 fertilizer Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 2
- 244000105624 Arachis hypogaea Species 0.000 claims description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 2
- 235000018262 Arachis monticola Nutrition 0.000 claims description 2
- 244000020551 Helianthus annuus Species 0.000 claims description 2
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 241000124033 Salix Species 0.000 claims description 2
- 239000010828 animal waste Substances 0.000 claims description 2
- 238000010411 cooking Methods 0.000 claims description 2
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 claims description 2
- 210000003608 fece Anatomy 0.000 claims description 2
- 239000010903 husk Substances 0.000 claims description 2
- 244000144972 livestock Species 0.000 claims description 2
- 235000020232 peanut Nutrition 0.000 claims description 2
- 244000144977 poultry Species 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 230000000813 microbial effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 229910052793 cadmium Inorganic materials 0.000 description 10
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 150000001661 cadmium Chemical class 0.000 description 2
- -1 cadmium ion form hydrogen Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000011066 ex-situ storage Methods 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000193403 Clostridium Species 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction 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
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical compound C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- 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
-
- 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)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The present invention provides a kind of heavy-metal contaminated soil renovation agents, are made of the raw material of following mass parts: 50~65 parts of modified biomass charcoal, 20~30 parts of organic matter, 6~15 parts of complex micro organism fungicide, 5~10 parts of polyacrylamide, 12~20 parts of organic fertilizer, 6~12 parts of iron powder；Wherein modified biomass charcoal by biomass carbon with vulcanized sodium is mixed and modified obtains；Wherein organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to 2~4:6~8:3 mass ratio.The present invention also protects the preparation method of heavy-metal contaminated soil renovation agent.Heavy-metal contaminated soil renovation agent preparation process of the invention is simple, mild condition, and heavy metal in soil removal rate is high after reparation, with higher realistic meaning good to the repairing effect of soil.
Description
Technical field
The present invention relates to soil pollution renovation agent, specially a kind of heavy-metal contaminated soil renovation agent.
Background technique
Soil is the important component of human environment, is indispensable, non-renewable natural resources, is all living things
The important foundation depended on for existence is the important place of terrestrial ecosystem substance, energy exchange and circulation.With China's industry
Change, the fast development of urbanization, massive discharge of pollutant, the use of unqualified agricultural substance, the unreasonable of mineral resources open
Adopt so that heavy metal constantly enters in soil environment, when it is accumulated over it is a certain amount of after will result in the pollution of soil, from
And the problem of environmental pollution of soil is made to be on the rise, especially heavy metal pollution of soil problem.Heavy metal pollution of soil has hidden
Covering property, chronicity and irreversibility, the residence time of pollutant in the soil is long, and plant or microorganism are difficult to degrade, and not only may be used
To cause degeneration, the crops of soil impaired, the life and health of the mankind can be also directly threatened.In recent years, while as environment is disliked
The exacerbation of change, the heavy metal pollution problem of soil also present increasingly complicated trend.A large amount of pollution plot there is
While heavy metal pollution, there is also the pollution of serious toxic organic compound, resident and ecological environment to surrounding are brought sternly
The threat of weight.
Currently, the recovery technique for heavy-metal contaminated soil mainly has: soil replacement method, original position or ex-situ chemical washing, heat
Desorption method, vitrifying reparation etc., wherein soil replacement method, implementation project amount is big, and investment cost is high, destroys soil structures, and right
The dirt soil to swap out is dealt carefully with again can just prevent secondary pollution, therefore, be not suitable for the improvement of pollution in wide area soil；It is in situ
Or ex-situ chemical washing, this method have it is with high costs, and for washed off soil reagent enter soil after will cause secondary dirt
Dye；Thermal desorption method, being only used for processing has volatile heavy metal, such as mercury, and needs to consume in treatment process a large amount of
Energy, economic cost are higher；Vitrifying reparation, this method remediation efficiency is high, but the soil after reparation needs landfill disposal, repairs
Soil after at high cost and reparation can not be agricultural again.
The above-mentioned restorative procedure to by heavy-metal contaminated soil, some completely cannot thoroughly eliminate the huge sum of money in soil
Belong to, some even bring new pollutant, there are various defects, therefore, for above-mentioned status, design one kind and remove removing heavy metals
Effect is good and not generate new contaminated soil renovation agent very necessary.
Summary of the invention
The purpose of the present invention is to solve the deficiencies of above-mentioned technology, provide a kind of heavy-metal contaminated soil renovation agent, will
Modified biomass charcoal is used in combination with organic matter, complex micro organism fungicide, can either adsorb the heavy metal in fixing soil, and energy
Enough improve soil texture, and repair process does not generate new pollutant, repairing effect is good.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following mass parts:
50~65 parts of modified biomass charcoal, 20~30 parts of organic matter, 6~15 parts of complex micro organism fungicide, polyacrylamide 5
~10 parts, 12~20 parts of organic fertilizer, 6~12 parts of iron powder；
The modified biomass charcoal by biomass carbon with vulcanized sodium is mixed and modified obtains；
The organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to 2~4:6~8:3 mass ratio；
The complex micro organism fungicide is made of the raw material of following mass parts: 1~4 part of bacillus cereus, perfringens
1~3 part of clostridium, 1~5 part of bacillus mycoides, 2~3 parts of colloid bacillus cereus, 5~12 parts of white-rot fungi, citric acid bacillus 2
~5 parts, 3~5 parts of oyster ash streptomycete, 1~4 part of pseudomonas aeruginosa.
Preferably, the living bacteria count of each bacterium is 1 × 10 in the complex micro organism fungicide9~3 × 109CFU/g。
Preferably, the ripe fertilizer after the organic fertilizer is house refuse, rubbish from cooking mixing feces of livestock and poultry is fermented.
The present invention also protects the preparation method of above-mentioned heavy-metal contaminated soil renovation agent, comprising the following steps:
Step 1: biomass carbon is impregnated 35~40h in sodium sulfide solution, it is washed with water, filtered and dried, and in indifferent gas
In 500~600 DEG C of 1~3h of calcining in body atmosphere, 1~2h is kept the temperature, modified biomass charcoal is obtained, it is spare；
Humic acid, potassium humate, potassium fulvate are mixed to get organic matter according to 2~4:6~8:3 mass ratio, it is spare；
In terms of mass fraction, by 1~4 part of bacillus cereus, 1~3 part of C.perfringens, bacillus mycoides 1~5
Part, 2~3 parts of colloid bacillus cereus, 5~12 parts of white-rot fungi, 2~5 parts of citric acid bacillus, 3~5 parts of oyster ash streptomycete, verdigris
1~4 part of Pseudomonas alba mixing, obtains complex micro organism fungicide；
Step 2: weighing 60~65 parts of modified biomass charcoal that step 1 obtains, the organic matter 20~30 that step 1 obtains
Part, 6~15 parts of complex micro organism fungicide, 5~10 parts of polyacrylamide, 12~20 parts of organic fertilizer, 6~12 parts of iron powder are spare；
Step 3: the weighed complex micro organism fungicide of step 2 and water are mixed to get according to the volume ratio of 1:170~190
Complex microorganism bacterium solution, and be uniformly mixed with the weighed modified biomass charcoal of step 2, ultrasound is dry, obtains mixture；
Step 4: the mixing that the weighed organic matter of step 2, polyacrylamide, organic fertilizer, iron powder and step 3 are obtained
Object is uniformly mixed, and obtains heavy-metal contaminated soil renovation agent.
Preferably, in step 1, the mass fraction of sodium sulfide solution is 10~30%.
Preferably, in step 1, the preparation process of biomass carbon are as follows: by biomass material and calcium oxide according to 20~22:1
Mass ratio mixing in 600~800 DEG C of 1~3h of pyrolysis, cool down and obtain biomass carbon and in atmosphere of inert gases.
Preferably, biomass material is agricultural crop straw, peanut shell, deseeding sunflower plate, willow leaf, rice husk, animal wastes
With one of sawdust or a variety of.
Preferably, in step 3, the dry condition of ultrasound are as follows: ultrasonic power is 100~200W, supersonic frequency 20kHz.
Compared with prior art, beneficial effects of the present invention are as follows:
1, biomass carbon of the invention is obtained by pyrolysis biomass in inert atmosphere, under an inert atmosphere biology obtained
Matter charcoal porosity is high, and absorption property is good, and addition calcium oxide can effectively facilitate biomass carbon in biomass carbon preparation process
Yield increase, duct it is abundant, while can also soil pH value be made to improve, so that soil surface negative electrical charge be made to increase, make soil
The compatibility of heavy metal is increased, heavy metal in soil can also be promoted to form hydroxide or reference state precipitating or co-precipitation；And
And the present invention has carried out sulphur modification to biomass carbon, significantly increases biomass carbon surface sulfur-bearing functional group quantity, enhances pair
The adsorption capacity of heavy metal, and sulfur-bearing functional group can promote the reduction of sexavalence cadmium, and stability is high, will not generate secondary dirt
Dye；
2, the present invention makes full use of resource using biomass such as agricultural crop straws as raw material, avoids environment caused by burning because of it
Pollution, and modified biomass charcoal is used in combination with organic fertilizer, having improves soil physico-chemical property, adjusts soil pH and raising
The effect of soil fertility so that renovation agent has not only repaired heavy metal, but also improves the property of soil；
3, the present invention can adsorb simultaneously curing heavy metal by the way that modified biomass charcoal to be used in combination with organic matter；With much money
Belong to substance to exist in the soil with variform, such as cadmium includes soluble cadmium ionic forms, insoluble sulfur cadmium and cadmium salt；This
It include humic acid, potassium humate and potassium fulvate in invention organic matter, potassium humate can make soluble cadmium ion form hydrogen
Cadmium oxide is passivated in the soil, while discharging potash fertilizer, and humic acid can adsorb insoluble cadmium sulfide and cadmium salt, at this time modified life
Substance charcoal can adsorb the cadmium hydroxide in soil；Humic acid itself has Plant-stimulating activity, potassium fulvate tool simultaneously
Have improvement soil texture, chesson is increase soil fertility, fixed nitrogen, activation potassium and fortification of plants root system adhesive force and quickly
The effect of absorbability；
4, the present invention can effectively absorb the heavy metals such as cadmium, lead, zinc by the way that complex micro organism fungicide is added；Iron powder can
The substances such as cadmium, chromium are reduced to low toxicity or nonpoisonous state；Polyacrylamide is high molecular polymer, there is good water solubility, nothing
Physical property that is malicious, non-corrosive, can improving soil increases soil macro aggregate number, improves soil hydraulic and aqueous
Amount, slows down soil losses, soil can be allowed to come into full contact with passivator；In addition, polyacrylamide has carboxyl and amide groups etc. living
Property group, can have the synergistic effect of stable chromium ion by forming coordinate bond with the metal ion on soil particle surface.
Specific embodiment
Below by specific embodiment example, the present invention will be described in detail.The scope of the present invention is not limited to the tool
Body embodiment.
Embodiment 1
The present embodiment provides a kind of heavy-metal contaminated soil renovation agents, are made of the raw material of following mass parts:
57 parts of modified biomass charcoal, 25 parts of organic matter, 10 parts of complex micro organism fungicide, 7 parts of polyacrylamide, organic fertilizer 16
Part, 9 parts of iron powder；
Wherein organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to the mass ratio of 3:7:3；
Wherein complex micro organism fungicide is made of the raw material of following mass parts: 2.5 parts of bacillus cereus, perfringens shuttle
2 parts of bacterium, 3 parts of bacillus mycoides, 2.5 parts of colloid bacillus cereus, 8.5 parts of white-rot fungi, 3.5 parts of citric acid bacillus, oyster ash chain
4 parts of mould, 2.5 parts of pseudomonas aeruginosa；The living bacteria count of each bacterium is 1 × 10 in complex micro organism fungicide9CFU/
g。
The present embodiment also provides the preparation method of above-mentioned renovation agent, comprising the following steps:
Step 1: agricultural crop straw is mixed with calcium oxide according to the mass ratio of 20:1, and under protection of argon gas in 700 DEG C
It is pyrolyzed 2h, cooling obtains biomass carbon；Biomass carbon is impregnated into 37.5h, water in the sodium sulfide solution that mass fraction is 20%
It washes, filters, it is dry, and keep the temperature 1h in 550 DEG C of calcining 2h in argon atmosphere, obtain modified biomass charcoal, it is spare；
Humic acid, potassium humate, potassium fulvate are mixed to get organic matter according to the mass ratio of 3:7:3, it is spare；
Step 2: weigh 57 parts of modified biomass charcoal that step 1 obtains, obtain 25 parts of organic matter of step 1 are compound micro-
It is 10 parts of bacteria agent, 7 parts of polyacrylamide, 16 parts of organic fertilizer, 9 parts of iron powder, spare；
Step 3: the weighed complex micro organism fungicide of step 2 and water are mixed to get according to the volume ratio of 1:180 compound
Microbial inoculum, and be uniformly mixed with the weighed modified biomass charcoal of step 2, ultrasound is dry, obtains mixture；
Step 4: the mixing that the weighed organic matter of step 2, polyacrylamide, organic fertilizer, iron powder and step 3 are obtained
Object is uniformly mixed, and obtains heavy-metal contaminated soil renovation agent.
Embodiment 2
The present embodiment provides a kind of heavy-metal contaminated soil renovation agents, are made of the raw material of following mass parts:
50 parts of modified biomass charcoal, 20 parts of organic matter, 6 parts of complex micro organism fungicide, 5 parts of polyacrylamide, organic fertilizer 12
Part, 6 parts of iron powder；
Wherein organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to the mass ratio of 2:6:3；
Wherein complex micro organism fungicide is made of the raw material of following mass parts: 1 part of bacillus cereus, C.perfringens
1 part, 1 part of bacillus mycoides, 2 parts of colloid bacillus cereus, 5 parts of white-rot fungi, 2 parts of citric acid bacillus, 3 parts of oyster ash streptomycete,
1 part of pseudomonas aeruginosa；The living bacteria count of each bacterium is 2 × 10 in complex micro organism fungicide9CFU/g。
The present embodiment also provides the preparation method of above-mentioned renovation agent, comprising the following steps:
Step 1: agricultural crop straw is mixed with calcium oxide according to the mass ratio of 22:1, and under protection of argon gas in 600 DEG C
It is pyrolyzed 3h, cooling obtains biomass carbon；Biomass carbon is impregnated into 40h in the sodium sulfide solution that mass fraction is 10%, is washed,
Filtering, it is dry, and keep the temperature 2h in 500 DEG C of calcining 3h in argon atmosphere, obtain modified biomass charcoal, it is spare；
Humic acid, potassium humate, potassium fulvate are mixed to get organic matter according to the mass ratio of 2:6:3, it is spare；
Step 2: weigh 50 parts of modified biomass charcoal that step 1 obtains, obtain 20 parts of organic matter of step 1 are compound micro-
It is 6 parts of bacteria agent, 5 parts of polyacrylamide, 12 parts of organic fertilizer, 6 parts of iron powder, spare；
Step 3: the weighed complex micro organism fungicide of step 2 and water are mixed to get according to the volume ratio of 1:170 compound
Microbial inoculum, and be uniformly mixed with the weighed modified biomass charcoal of step 2, ultrasound is dry, obtains mixture；
Step 4: the mixing that the weighed organic matter of step 2, polyacrylamide, organic fertilizer, iron powder and step 3 are obtained
Object is uniformly mixed, and obtains heavy-metal contaminated soil renovation agent.
Embodiment 3
The present embodiment provides a kind of heavy-metal contaminated soil renovation agents, are made of the raw material of following mass parts:
65 parts of modified biomass charcoal, 30 parts of organic matter, 15 parts of complex micro organism fungicide, 10 parts of polyacrylamide, organic fertilizer
20 parts, 12 parts of iron powder；
Wherein organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to the mass ratio of 4:8:3；
Wherein complex micro organism fungicide is made of the raw material of following mass parts: 4 parts of bacillus cereus, C.perfringens
3 parts, 5 parts of bacillus mycoides, 3 parts of colloid bacillus cereus, 12 parts of white-rot fungi, 5 parts of citric acid bacillus, 5 parts of oyster ash streptomycete,
4 parts of pseudomonas aeruginosa；The living bacteria count of each bacterium is 3 × 10 in complex micro organism fungicide9CFU/g。
The present embodiment also provides the preparation method of above-mentioned renovation agent, comprising the following steps:
Step 1: agricultural crop straw is mixed with calcium oxide according to the mass ratio of 22:1, and under protection of argon gas in 800 DEG C
It is pyrolyzed 1h, cooling obtains biomass carbon；Biomass carbon is impregnated into 35h in the sodium sulfide solution that mass fraction is 30%, is washed,
Filtering, it is dry, and keep the temperature 2h in 600 DEG C of calcining 1h in argon atmosphere, obtain modified biomass charcoal, it is spare；
Humic acid, potassium humate, potassium fulvate are mixed to get organic matter according to the mass ratio of 4:8:3, it is spare；
Step 2: weigh 65 parts of modified biomass charcoal that step 1 obtains, obtain 30 parts of organic matter of step 1 are compound micro-
It is 15 parts of bacteria agent, 10 parts of polyacrylamide, 20 parts of organic fertilizer, 12 parts of iron powder, spare；
Step 3: the weighed complex micro organism fungicide of step 2 and water are mixed to get according to the volume ratio of 1:190 compound
Microbial inoculum, and be uniformly mixed with the weighed modified biomass charcoal of step 2, ultrasound is dry, obtains mixture；
Step 4: the mixing that the weighed organic matter of step 2, polyacrylamide, organic fertilizer, iron powder and step 3 are obtained
Object is uniformly mixed, and obtains heavy-metal contaminated soil renovation agent.
Comparative example 1
It is identical as the composition of embodiment 1 and preparation method, the difference is that being added without complex micro organism fungicide.
Comparative example 2
It is identical as the composition of embodiment 1 and preparation method, the difference is that is be added is biomass carbon, that is, biomass carbon
Without modification.
Comparative example 3
The biomass carbon of embodiment 1.
Comparative example 4
The modified biomass charcoal of embodiment 1.
The renovation agent of 1~embodiment of the embodiment of the present invention 3 has good repairing effect, we are by embodiment 1~reality
The sample of the sample, 1~comparative example of comparative example 4 of applying example 3 has carried out reparative experiment.
We conducted the reparative experiments to heavy-metal contaminated soil first, first set the soil of heavy metal pollution respectively
In in 7 identical containers, then apply 1~embodiment of embodiment 3 and comparative example respectively according to the quality of soil weight 5%
Deionized water is added after being sufficiently mixed in the sample of 1~comparative example 4, makes soil moisture 30~40%, then adds water to make reality daily
The humidity for testing soil is constant, and pedotheque is acquired after 30d, carries out content of beary metal test.Table 1 is soil after different samples are repaired
The content of beary metal tables of data of sample.
The content of beary metal tables of data of pedotheque after the different samples of table 1 are repaired
As it can be seen from table 1 heavy metal soil-repairing agent of the invention for heavy metal pollution soil have it is good
Repairing effect.
Influence experiment of the soil to growing plant, detailed process after we are repaired simultaneously are as follows: take sieving fine earth system
The standby cadmium pollution soil at 400mg/kg, after being sufficiently mixed, is fitted into flowerpot, and every basin fills soil 500g, and deionized water, which is added, to be made to contain
Water is the 30% of field capacity, and balance applied 1~embodiment of embodiment 3 and comparative example 1~comparison after one month respectively
The soil-repairing agent of example 4.Then complete, health, full wheat seed are chosen, every basin sows 30, depth of planting 2cm.By 7
A flowerpot is cultivated in intelligent artificial climate vegetation box, and day temperature is 25 ± 2 DEG C, full exposure, and evening temperature is 18 ± 2 DEG C,
Dark, whole day humidity are 60~70%, pour a water every two days.Thinning after a week is grown, every basin stays 15 plants of seedling.After growth 30 days
Plant and root soil sample are acquired, the content of heavy metal cadmium in plant and root soil is measured, the results are shown in Table 2.
The cadmium content of soil plantation wheat after table 2 is repaired
From table 2 it can be seen that renovation agent of the invention influences significantly cadmium available state in soil, renovation agent of the present invention can
The intracorporal cadmium content of wheat is effectively reduced.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of heavy-metal contaminated soil renovation agent, which is characterized in that be made of the raw material of following mass parts:
50~65 parts of modified biomass charcoal, 20~30 parts of organic matter, 6~15 parts of complex micro organism fungicide, polyacrylamide 5~10
Part, 12~20 parts of organic fertilizer, 6~12 parts of iron powder；
The modified biomass charcoal by biomass carbon with vulcanized sodium is mixed and modified obtains；
The organic matter is mixed to get by humic acid, potassium humate, potassium fulvate according to 2~4:6~8:3 mass ratio；
The complex micro organism fungicide is made of the raw material of following mass parts: 1~4 part of bacillus cereus, C.perfringens 1
~3 parts, 1~5 part of bacillus mycoides, 2~3 parts of colloid bacillus cereus, 5~12 parts of white-rot fungi, 2~5 parts of citric acid bacillus,
3~5 parts of oyster ash streptomycete, 1~4 part of pseudomonas aeruginosa.
2. a kind of heavy-metal contaminated soil renovation agent according to claim 1, which is characterized in that the composite microbial bacteria
The living bacteria count of each bacterium is 1 × 10 in agent9~3 × 109CFU/g。
3. a kind of heavy-metal contaminated soil renovation agent according to claim 1, which is characterized in that the organic fertilizer is life
Ripe fertilizer after rubbish, rubbish from cooking mixing feces of livestock and poultry are fermented.
4. a kind of preparation method of described in any item heavy-metal contaminated soil renovation agents, feature exist according to claim 1~3
In, comprising the following steps:
Step 1: biomass carbon is impregnated 35~40h in sodium sulfide solution, it is washed with water, filtered and dried, and in inert gas atmosphere
In 500~600 DEG C of 1~3h of calcining in enclosing, 1~2h is kept the temperature, modified biomass charcoal is obtained, it is spare；
Humic acid, potassium humate, potassium fulvate are mixed to get organic matter according to 2~4:6~8:3 mass ratio, it is spare；
In terms of mass fraction, by 1~4 part of bacillus cereus, 1~3 part of C.perfringens, 1~5 part of bacillus mycoides,
2~3 parts of colloid bacillus cereus, 5~12 parts of white-rot fungi, 2~5 parts of citric acid bacillus, 3~5 parts of oyster ash streptomycete, the false list of verdigris
1~4 part of born of the same parents bacillus mixing, obtains complex micro organism fungicide；
Step 2: weigh 60~65 parts of modified biomass charcoal that step 1 obtains, obtain 20~30 parts of organic matter of step 1, step
Rapid one 6~15 parts of obtained complex micro organism fungicide, 5~10 parts of polyacrylamide, 12~20 parts of organic fertilizer, 6~12 parts of iron powder,
It is spare；
Step 3: the weighed complex micro organism fungicide of step 2 and water are mixed to get according to the volume ratio of 1:170~190 compound
Microbial inoculum, and be uniformly mixed with the weighed modified biomass charcoal of step 2, ultrasound is dry, obtains mixture；
Step 4: the mixture that the weighed organic matter of step 2, polyacrylamide, organic fertilizer, iron powder and step 3 obtain is mixed
It closes uniformly, obtains heavy-metal contaminated soil renovation agent.
5. a kind of preparation method of heavy-metal contaminated soil renovation agent according to claim 4, which is characterized in that the step
In rapid one, the mass fraction of sodium sulfide solution is 10~30%.
6. a kind of preparation method of heavy-metal contaminated soil renovation agent according to claim 4, which is characterized in that the life
The preparation process of substance charcoal are as follows: mix biomass material according to the mass ratio of 20~22:1 with calcium oxide, and in inert gas
In atmosphere, in 600~800 DEG C of 1~3h of pyrolysis, cooling obtains biomass carbon.
7. a kind of preparation method of heavy-metal contaminated soil renovation agent according to claim 6, which is characterized in that the life
Raw material of substance is one of agricultural crop straw, peanut shell, deseeding sunflower plate, willow leaf, rice husk, animal wastes and sawdust or more
Kind.
8. a kind of preparation method of heavy-metal contaminated soil renovation agent according to claim 4, which is characterized in that the step
In rapid three, the dry condition of ultrasound are as follows: ultrasonic power is 100~200W, supersonic frequency 20kHz.
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