CN104774620B - A kind of compounding modifying agent and preparation method and modification method for pollution of vanadium soil - Google Patents
A kind of compounding modifying agent and preparation method and modification method for pollution of vanadium soil Download PDFInfo
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- CN104774620B CN104774620B CN201510191189.1A CN201510191189A CN104774620B CN 104774620 B CN104774620 B CN 104774620B CN 201510191189 A CN201510191189 A CN 201510191189A CN 104774620 B CN104774620 B CN 104774620B
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- 239000002689 soil Substances 0.000 title claims abstract description 124
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 48
- 238000013329 compounding Methods 0.000 title claims abstract description 33
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 28
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000002715 modification method Methods 0.000 title abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000002361 compost Substances 0.000 claims abstract description 19
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 15
- 230000006872 improvement Effects 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 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 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 229920002521 macromolecule Polymers 0.000 claims abstract description 6
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 5
- 241000051984 Blepharidachne Species 0.000 claims abstract description 4
- 241000223782 Ciliophora Species 0.000 claims abstract description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 4
- 235000015170 shellfish Nutrition 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 19
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 10
- 230000001976 improved effect Effects 0.000 abstract description 10
- 230000035558 fertility Effects 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 18
- 241000209140 Triticum Species 0.000 description 8
- 238000005341 cation exchange Methods 0.000 description 8
- 235000021307 Triticum Nutrition 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000035784 germination Effects 0.000 description 5
- 239000003516 soil conditioner Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000012010 growth Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000012216 bentonite Nutrition 0.000 description 2
- -1 branch Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 240000008120 Dendrocalamus strictus Species 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000008351 acetate buffer Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 239000002699 waste material 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- 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
- 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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Pest Control & Pesticides (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
A kind of compounding modifying agent and preparation method and modification method for pollution of vanadium soil, the modifying agent is made up of the component of following parts by weight：Component A：1.5~2.5 parts of macromolecule organic polyacrylamide PAM, 100~150 parts of desulfurized gesso of flue gas；B component：50~100 parts of compost sludge, 5~20 parts of sodium base modified alta-mud；Its modification method is：Main, soil moved in improve the original mixture；With B groups compounding modifying agent 2kg/m2~3kg/m2Applied amount put in mixture soil, A groups compounding modifying agent 0.08kg/m2~0.12kg/m2Applied amount be spread on mixture soil surface, sprinkle water；When surveying moisture content most 5%~15% after 2 days, in the soil after improvement the step of the plant such as plantation ciliate desert-grass, reed, yellow shellfish grass；The present invention, which has, to be improved by functions such as the fertility of the heavy-metal contaminated soils such as vanadium, water-holding capacity, ion exchange ratio and buffering soil pH values.
Description
Technical field
The invention belongs to technical field of land improvement, and in particular to a kind of compounding modifying agent and system for pollution of vanadium soil
Preparation Method and modification method.
Background technology
China's arable soil is serious by heavy metal pollution, and heavy metal is enriched with crops body, passes through food chain and then danger
The health of victimization class.It is relatively more for the improving technology research by cadmium, lead, As polluted soil at present, pollution of vanadium soil is changed
Good recovery technique is seldom.
In order to, for the soil of plant growth can be adapted to, will in the prior art be disclosed by the soil improvement of heavy metal pollution
Many methods, the Chinese patent literature of such as Application No. 201310477113.6 discloses one kind using biomass bamboo shoot shell through overdrying
Dry, pre- charing, charing obtain solid bamboo shoot shell base charcoal modifying agent and heavy metal in soil lead ion are adsorbed, fixed, can
Effectively lead ion is hindered to be migrated from soil into crops, retain water and nutrients ability of improved soil etc., but the modifying agent composition
It is excessively single, the soil of lead contamination can only be improved, it is unobvious for the improved effect by various heavy contaminated soil；Shen
Number it please disclose a kind of soil improvement being made up of red mud and white lime for 200910193692.5 a Chinese patent literature and mix
Thing, using plant and chemical combined repairing method, pH regulations are carried out to soil, by planting energy crop and surpassing by chemical method
Accumulator plant etc. carries out heavy metal-polluted soil absorption etc., so that play improved soil characteristic, gradually reduce heavy metal content in soil, and
The purpose of rehabilitating soil is finally reached, the efficiency of phytoremediation is improved, but the soil conditioner composition mistake described in the patent
In single, it is necessary to coordinate other soil conditioners just can really play the improved effect of its modifying agent.
Several soil amelioration techniques described above all have certain limitation, have researcher to show, PAM is as more normal
Soil conditioner, soil crust can be significantly reduced by applying a small amount of PAM, improve the infiltration rate of soil, reduce earth's surface footpath
Stream and the soil erosion, the water-holding capacity for improving soil (in strong, wait difference PAM application processes to soil infiltration and the shadow corroded
Ring, EI, 2010,26 (7)).Wang Xun, which is studied, to be shown, cation loose by the sludge quality of Composting treatment
Exchange capacity (CEC) is dramatically increased, and unit weight is reduced, the nutritional ingredient increase that can be utilized by plant, and pathogen and parasitic ovum are almost
All it is killed, and the nutritional ingredient such as N, P, K needed in sludge containing a large amount of organic substances for promoting plant growth and plant
And various trace elements, be important organic manure resource and good soil conditioner (Wang Xun compost sludges to timbered soil and
The influence research of plant, Nanjing Forestry University's Master degree candidate's master thesis, 2011.6).Ma Youhua is studied and pointed out, swelling
Soil has higher cation exchange capacity (CEC) (CEC), stronger water holding capacity and good caking property.Cation exchange capacity (CEC) is soil
One important indicator of earth fertilizer supply and preservation.The cation exchange capacity (CEC) of general soil is 5~30cmol/kg, and most of soil is 10
~20cmol/kg；And bentonitic cation exchange capacity (CEC) is general in 50~90cmol/kg, in addition, bentonitic water absorption rate is up to
100%~240%.These bentonitic performances are hot to the liquid manure gas for coordinating soil, increase soil fertility with good effect,
Soil conditioner (research and application of the Ma Youhua bentonites in soil improvement and fertilizer production, mineral products protection and profit can be used as
With 1996,1).Yang Xiuhong etc. also illustrates that sodium base modified alta-mud has good suction-operated to Cd2+, is particularly suited for soil
Improvement.(Yang Xiuhong waits absorption of the Na-modified Bentonites to Cd2+ to study, Environmental Chemistry, 2004,23 (5)).
It is not directed to the technology improved by the heavy metal vanadium V fertility lean soil polluted also in the prior art,
Without changing for the commercialization for being directed to a variety of soil properties such as raising soil water storage ability, soil fertility, cation exchange capacity (CEC) simultaneously
Good dose.
The content of the invention
In order to overcome the problem of above-mentioned prior art is present, it is used for pollution of vanadium soil it is an object of the invention to provide one kind
Compounding modifying agent and preparation method and modification method, be mainly used in solve for heavy metal pollution of vanadium fertility lean soil
The improvement reparation of progress, with raising by the fertility of the heavy-metal contaminated soils such as vanadium, water-holding capacity, ion exchange ratio and buffering
The functions such as soil pH value, are adapted to the growth of the various plants such as ciliate desert-grass, reed, yellow shellfish grass.
To achieve the above objectives, the present invention is adopted the following technical scheme that：
A kind of compounding modifying agent for pollution of vanadium soil, is made up of the component of following parts by weight：Component A：Macromolecule has
1.5~2.5 parts of machine thing polyacrylamide PAM, 100~150 parts of desulfurized gesso of flue gas；B component：50~100 parts of compost sludge,
5~20 parts of sodium base modified alta-mud.
The compost sludge carries out the compost sludge that aerobic compost is obtained for addition flyash, and wherein flyash addition is accounted for
The 15%~25% of whole compost material dry weights, the pH of compost sludge is 7.0~7.5, moisture content 30%~50%, and organic matter contains
Measure 300~400g/kg, complete 18~25g/kg of nitrogen, full phosphorus 9g/kg~12g/kg, complete 19~25g/kg of potassium.
The desulfurized gesso of flue gas is that coal fired power plant flue gas desulfurization gypsum passes through broken, screening, takes particle diameter<2mm particle
Gained.
A kind of preparation method of compounding modifying agent for pollution of vanadium soil described above, the B component preparation method
Comprise the following steps：
Step 1：By the compost sludge, sodium base modified alta-mud mix, and be put into mixer stir 15min~
20min, moves it in disintegrating machine after stirring and is uniformly crushed, and obtains crushing uniform mixture；
Step 2：Crush uniform mixture by described and move in Squeezinggranulator extruder grain into particulate matter；
Step 3：The particulate matter is moved in the cylinder round sifter that mesh number is 24~50 mesh, the qualified particle feeding on sieve
Film rotating cylinder film is wrapped up, that is, can obtain described B groups soil compounding modifying agent；Powder under sieve, which is returned, reclaims profit in mixer
With.
The particle diameter of particulate matter described in step 2 is 0.3mm~0.8mm.
The method that a kind of compounding modifying agent for pollution of vanadium soil described above improves pollution of vanadium soil, by main soil soil
Earth is with unpolluted soil moved in improve the original soil using mass ratio as 1:1~1.5:1 mixture；Described B component is compounded into modifying agent with 2kg/
m2~3kg/m2Applied amount put in mixture soil, turn over mixing, then A groups are compounded into modifying agent with 0.08kg/m2~
0.12kg/m2Applied amount be spread on mixture soil surface, sprinkle water；When survey moisture content is 5%~15% after 2 days, after improvement
The step of implementing plantation ciliate desert-grass, reed and/or yellow shellfish grass plant in soil.
Compared to the prior art compared with the present invention possesses following advantage：
1st, soil compounding modifying agent provided by the present invention is conducive to improving soil texture, soil is more suitable for plant life
It is long and more rich in the nutriment for being easy to plant absorption, the improvement reparation of growth and soil beneficial to plant.
2nd, gypsum is coal fired power plant flue gas desulfurization gypsum in A groups soil compounding modifying agent provided by the present invention, be can be achieved
Refuse reclamation, turns waste into wealth.
3rd, B groups soil compounding modifying agent provided by the present invention is granulating modifying agent, belongs to soil conditioner product, just
In commercialization popularization and application.
3rd, soil improvement method provided by the present invention for " table soil mixture --- earthing improvement --- planting trees and grass " it is integrated,
Comprehensive improving technology, mixing applies physics, chemistry, biological soil improvement recovery technique, and improving technology effect is obvious.
Brief description of the drawings
Fig. 1 is to measure the soil moisture content curve map of experiment process 1,2,3,4 in embodiment.
Fig. 2 is to measure the soil pH figure of experiment process 1,2,3,4 in embodiment.
Fig. 3 is to measure the soil cationic exchange capacity curve map of experiment process 1,2,3,4 in embodiment.
Fig. 4 by measured in embodiment experiment process 1,2,3,4 plant spring wheat germination percentage curve map.
Fig. 5 by measured in embodiment experiment process 1,2,3,4 plant spring wheat plant height figure.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Experiment master used, soil moved in improve the original earth are taken respectively from Hubei Province Yunxi County ordinary mining industry Co., Ltd location by navajoite dirt
The soil of dye and unpolluted soil, after main soil and soil moved in improve the original soil natural are air-dried, remove the impurity such as branch, stone,
Through 200 mesh sieves, then by the main soil after screening and soil moved in improve the original soil using mass ratio as 1:After 1 sufficiently mixing, mixture soil is obtained
Earth, it is standby.Measure soil pH value is 5.65 (soil ratios：2.5：1), the full content 1500mg/kg of heavy metal vanadium, acetate buffer solution method
Content of vanadium 123.75mg/kg in leaching liquor, full nitrogen 2.41g/kg, cation exchange capacity (CEC) 8cmol/kg.
Experiment compost sludge used, removes the impurity such as branch, stone, standby.
Experiment desulfurized gesso of flue gas used, through broken, screening, takes particle diameter<2mm particle, it is standby.
Embodiment 1
A kind of compounding modifying agent for pollution of vanadium soil of the present embodiment, it is by following weight proportion system by each component
Into：Component A：Macromolecule organic polyacrylamide (PAM) 0.003g, desulfurized gesso of flue gas 0.11g；B component：Compost sludge
22.73g, sodium base modified alta-mud 7.27g.
The described B groups for pollution of vanadium soil compound modifying agent, and its preparation method is prepared by following steps：
Step 1：Compost sludge, sodium base modified alta-mud are stirred into 10min in beaker, then moves in disintegrating machine and carries out
It is uniform broken.
Step 2：Extruder grain in Squeezinggranulator.Gained is the B group soil conditioners used in laboratory, standby (real
Test room and do not carry out screening in shape).
The soil compounding modifying agent is applied to the modification method of pollution of vanadium soil：250g mixture soil is taken in plastic cup
In, 2.2g B groups compounding modifying agent is bestowed in soil, mixing is turned over, then A group modifying agents are spread on soil surface, sprinkle water, 2
It is 5.32% that moisture content is surveyed after it, to handle 2, does not add the soil of compounding modifying agent to handle 1 while setting.In processing 1 and 2
Spring wheat 50 is sowed, thickness of earth covering 1.2cm pours 50ml deionized waters, is put in growth cabinet, every other day pours 100ml
Pure water, is cultivated 15 days.Determine soil moisture content, pH value, cation exchange capacity (CEC), germination percentage, plant height.
Embodiment 2
A kind of compounding modifying agent for pollution of vanadium soil of the present embodiment, it is by following weight proportion system by each component
Into：Component A：Macromolecule organic polyacrylamide (PAM) 0.004g, desulfurized gesso of flue gas 0.21g；B component：The institute of embodiment 1
B group modifying agents 2.5g is made.
The soil compounding modifying agent is applied to the modification method of pollution of vanadium soil：250g mixture soil is taken in plastic cup
In, B groups compounding modifying agent is bestowed in soil, mixing is turned over, then A group modifying agents are spread on soil surface, sprinkle water, surveyed after 2 days
Moisture content is 5.32%, for processing 3.Spring wheat 50 is sowed in processing 3, thickness of earth covering 1.2cm pours 50ml deionized waters,
It is put in growth cabinet, every other day pours 100ml pure water, cultivates 15 days.Determine soil moisture content, pH value, cation exchange
Amount, germination percentage, plant height.
Embodiment 3
A kind of compounding modifying agent for pollution of vanadium soil of the present embodiment：A groups：Macromolecule organic polyacrylamide
(PAM) 0.005g, desulfurized gesso of flue gas 0.31g；B groups：B groups modifying agent 3.0g obtained by embodiment 1.
The implementation of be the same as Example 2, experiment process is set to processing 4.
, can be with from figure as shown in figure 1, the soil moisture content curve map to measure experiment process 1,2,3,4 in embodiment
Find out：After addition compounding modifying agent, the moisture content of the soil of experiment process 2,3,4 than control treatment 1 be respectively increased 1.07 times,
0.60 times, 0.49 times.Experiment process 2 can significantly improve the Water-saving effect of soil.
As shown in Fig. 2 the soil pH figure to measure experiment process 1,2,3,4 in embodiment, as can be seen from the figure：Addition
Compound after modifying agent, the soil pH of experiment process 2,3,4 has been respectively increased 0.18 times, 0.29 times, 0.32 times than control treatment 1.
Compounding modifying agent can be effectively improved the acid-base value of soil, be conducive to plant growth.
As shown in figure 3, the soil cationic exchange capacity curve map to measure experiment process 1,2,3,4 in embodiment, from
It can be seen from the figure that：After addition compounding modifying agent, the soil cationic exchange capacity of experiment process 2,3,4 is than 1 point of control treatment
0.20 times, 0.60 times, 0.86 times is not improved.
As shown in figure 4, by measured in embodiment experiment process 1,2,3,4 plant spring wheat germination percentage curve map, from figure
In it can be seen that：After addition compounding modifying agent, the germination percentage that experiment process 2,3,4 plants spring wheat is carried respectively than control treatment 1
It is high 3.50 times, 4.38 times, 4.50 times.
As shown in figure 5, by measured in embodiment experiment process 1,2,3,4 plant spring wheat plant height figure, from figure
It can be seen that：After addition compounding modifying agent, the plant height that experiment process 2,3,4 plants spring wheat is respectively increased than control treatment 1
0.49 times, 0.86 times, 1.23 times.
Claims (6)
1. a kind of compounding modifying agent for pollution of vanadium soil, it is characterised in that：It is made up of the component of following parts by weight：Component A：
1.5~2.5 parts of macromolecule organic polyacrylamide PAM, 100~150 parts of desulfurized gesso of flue gas；B component：Compost sludge 50
~100 parts, 5~20 parts of sodium base modified alta-mud.
2. a kind of compounding modifying agent for pollution of vanadium soil according to claim 1, it is characterised in that：The compost is dirty
Mud carries out the compost sludge that aerobic compost is obtained for addition flyash, and wherein flyash addition accounts for whole compost material dry weights
15%~25%, the pH of compost sludge is 7.0~7.5, moisture content 30%~50%, 300~400g/kg of the content of organic matter, entirely
Nitrogen 18~25g/kg, full phosphorus 9g/kg~12g/kg, complete 19~25g/kg of potassium.
3. a kind of compounding modifying agent for pollution of vanadium soil according to claim 1, it is characterised in that：The flue gas takes off
Sulphur gypsum is that coal fired power plant flue gas desulfurization gypsum passes through broken, screening, takes particle diameter<Obtained by 2mm particle.
4. a kind of preparation method of compounding modifying agent for pollution of vanadium soil described in claim 1, it is characterised in that：It is described
B component preparation method comprises the following steps：
Step 1：The compost sludge, sodium base modified alta-mud are mixed, and are put into stirring 15min~20min in mixer, is stirred
Move it in disintegrating machine and uniformly crushed after mixing uniformly, obtain crushing uniform mixture；
Step 2：Crush uniform mixture by described and move in Squeezinggranulator extruder grain into particulate matter；
Step 3：The particulate matter is moved in the cylinder round sifter that mesh number is 24~50 mesh, the qualified particle feeding film on sieve
Rotating cylinder film is wrapped up, that is, can obtain described B groups soil compounding modifying agent；Powder under sieve, which is returned in mixer, to be recycled.
5. preparation method according to claim 4, it is characterised in that：The particle diameter of particulate matter described in step 2 be 0.3mm~
0.8mm。
6. the method that a kind of compounding modifying agent for pollution of vanadium soil described in claim 1 improves pollution of vanadium soil, it is special
Levy and be：By main soil and unpolluted soil moved in improve the original soil using mass ratio as 1:1~1.5:1 mixture；Described B component is answered
With modifying agent with 2kg/m2~3kg/m2Applied amount put in mixture soil, turn over mixing, then by A groups compound modifying agent with
0.08kg/m2~0.12kg/m2Applied amount be spread on mixture soil surface, sprinkle water；When survey moisture content is 5%~15% after 2 days,
The step of implementing plantation ciliate desert-grass, reed and/or yellow shellfish grass plant in soil after improvement.
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| CN106001098A (en) * | 2016-05-23 | 2016-10-12 | 葛洲坝中固科技股份有限公司 | Heavy metal repairing material based on organic sludge and use method of material |
| CN106064980B (en) * | 2016-05-26 | 2019-04-02 | 北京矿冶研究总院 | Ecological restoration matrix for vanadium ore waste rock storage yard and preparation method and application thereof |
| CN106178209A (en) * | 2016-08-05 | 2016-12-07 | 罗强 | A kind of laryngeal mask airway device with transmission of video function |
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| CN110463563B (en) * | 2019-09-12 | 2021-11-16 | 云南凯威特新材料股份有限公司 | Method for improving soil of mixture of industrial solid waste and sludge by using modified montmorillonite |
| CN112779022B (en) * | 2021-01-15 | 2021-12-24 | 清华大学 | Heavy metal contaminated soil remediation agent and preparation method and application thereof |
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