CN115193901A - Treatment method for heavy metal polluted saline-alkali soil - Google Patents
Treatment method for heavy metal polluted saline-alkali soil Download PDFInfo
- Publication number
- CN115193901A CN115193901A CN202210975402.8A CN202210975402A CN115193901A CN 115193901 A CN115193901 A CN 115193901A CN 202210975402 A CN202210975402 A CN 202210975402A CN 115193901 A CN115193901 A CN 115193901A
- Authority
- CN
- China
- Prior art keywords
- parts
- saline
- soil
- alkali soil
- heavy metal
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 137
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 56
- 239000003513 alkali Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000011282 treatment Methods 0.000 title claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- 235000013311 vegetables Nutrition 0.000 claims abstract description 42
- 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 28
- 239000004021 humic acid Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000003337 fertilizer Substances 0.000 claims abstract description 18
- 230000000813 microbial effect Effects 0.000 claims abstract description 18
- 241000907663 Siproeta stelenes Species 0.000 claims abstract description 16
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 16
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 241000692870 Inachis io Species 0.000 claims description 40
- 238000005067 remediation Methods 0.000 claims description 28
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 20
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 14
- 241000894006 Bacteria Species 0.000 claims description 13
- 239000010828 animal waste Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 230000012010 growth Effects 0.000 claims description 8
- 239000010902 straw Substances 0.000 claims description 7
- 239000000052 vinegar Substances 0.000 claims description 7
- 235000021419 vinegar Nutrition 0.000 claims description 7
- 241000228215 Aspergillus aculeatus Species 0.000 claims description 6
- 244000063299 Bacillus subtilis Species 0.000 claims description 6
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 6
- 241001465752 Purpureocillium lilacinum Species 0.000 claims description 6
- 235000019764 Soybean Meal Nutrition 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- 241000589651 Zoogloea Species 0.000 claims description 6
- 238000009331 sowing Methods 0.000 claims description 6
- 239000004455 soybean meal Substances 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 241000192700 Cyanobacteria Species 0.000 claims description 5
- 241001465754 Metazoa Species 0.000 claims description 5
- 241000187392 Streptomyces griseus Species 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- VQAPWLAUGBBGJI-UHFFFAOYSA-N [B].[Fe].[Rb] Chemical compound [B].[Fe].[Rb] VQAPWLAUGBBGJI-UHFFFAOYSA-N 0.000 claims description 5
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 5
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 235000010755 mineral Nutrition 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 241000589152 Azotobacter chroococcum Species 0.000 claims description 4
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- 241000607479 Yersinia pestis Species 0.000 claims description 3
- 238000003306 harvesting Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 3
- 241000589151 Azotobacter Species 0.000 claims description 2
- 229920000298 Cellophane Polymers 0.000 claims description 2
- 241000006383 Salimicrobium halophilum Species 0.000 claims description 2
- 235000013877 carbamide Nutrition 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 108010025899 gelatin film Proteins 0.000 claims description 2
- 229910001577 potassium mineral Inorganic materials 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 244000046052 Phaseolus vulgaris Species 0.000 claims 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 150000003839 salts Chemical class 0.000 abstract description 13
- 238000003973 irrigation Methods 0.000 abstract description 3
- 230000002262 irrigation Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 23
- 241000196324 Embryophyta Species 0.000 description 14
- 229910052793 cadmium Inorganic materials 0.000 description 9
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 9
- 239000002028 Biomass Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- -1 salt ions Chemical class 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 241001061906 Caragana Species 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000035784 germination Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 241000902876 Alticini Species 0.000 description 1
- 244000144730 Amygdalus persica Species 0.000 description 1
- 240000000467 Carum carvi Species 0.000 description 1
- 235000005747 Carum carvi Nutrition 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000005794 Hymexazol Substances 0.000 description 1
- 240000003450 Mallotus philippensis Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 241000255969 Pieris brassicae Species 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 241000918585 Pythium aphanidermatum Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 241000605118 Thiobacillus Species 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 241001233061 earthworms Species 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- KGVPNLBXJKTABS-UHFFFAOYSA-N hymexazol Chemical compound CC1=CC(O)=NO1 KGVPNLBXJKTABS-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229930195732 phytohormone Natural products 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000002728 pyrethroid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004016 soil organic matter Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mycology (AREA)
- Soil Sciences (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of contaminated soil treatment, and discloses a method for treating a heavy metal contaminated saline-alkali soil, which treats the heavy metal contaminated saline-alkali soil by means of land parcel arrangement, malachite vegetable planting, saline-alkali soil repairing agent application and the like, wherein denatured magnet powder is added when the land parcel is cleared up, a flood irrigation mode is adopted, and the formula of the added saline-alkali soil repairing agent is as follows: 50-60 parts of biochar, 13-17 parts of humic acid, 5-8 parts of nitrogen-phosphorus-potassium compound fertilizer, 12-20 parts of organic fertilizer, 11-15 parts of sawdust, 2-5 parts of microbial agent and 3-8 parts of diatomite. The invention adopts a comprehensive treatment method to treat the saline-alkali soil polluted by heavy metals, can effectively remove the heavy metals and the salt in the soil, improves the soil structure, and has short treatment time and obvious treatment effect.
Description
Technical Field
The invention belongs to the technical field of polluted soil treatment, and particularly relates to a method for treating a heavy metal polluted saline-alkali soil.
Background
With the development of industry and the progress of society, the production and application of heavy metals are widely developed, but because heavy metals are undegradable, highly toxic and difficult to degrade, the heavy metals are easily absorbed and enriched by crops in production activities, the yield and quality of the crops are seriously influenced, and the heavy metals can be accumulated in human bodies through food chains to harm health. Therefore, more and more manufacturers for producing and using heavy metals are moved to coastal saline-alkali land areas far away from cities and villages for production, but the saline-alkali land in the production areas is also polluted, and under the condition that the culturable land is less and less at present, the full development and utilization of saline-alkali land resources are in a reluctant situation.
The heavy metal soil remediation measures comprise physical and chemical treatment, microbial remediation, animal and plant remediation and the like. The physical and chemical methods mainly comprise an electrochemical method, a soil dressing method, soil leaching and the like, the toxicity of heavy metals in the soil can be reduced in a short time, but the soil dressing method is high in cost, chemical agents are artificially applied to the soil, secondary pollution is easily caused, and the leaching method can pollute underground water. On one hand, the microorganism can reduce the toxicity of heavy metals in the soil and can adsorb and accumulate the heavy metals; on the other hand, the microenvironment of the root system can be changed, so that the absorption, volatilization or fixation efficiency of the plant to the heavy metal is improved. However, most of the existing microbial remediation technologies are limited to scientific research and laboratory level, and the examples are not much researched, so that the technologies cannot be popularized in a large area. The research of repairing the heavy metal pollution by using some lower animals such as earthworms in the soil is still limited in the laboratory stage, and the repairing efficiency is general due to the restriction of factors such as the growth environment of the lower animals, so that the method is not an ideal repairing technology. According to the phytoremediation, a certain specific plant is planted on the soil polluted by the heavy metal, the soil has special absorption and enrichment capacity on the pollution elements in the soil, the heavy metal is moved out of the soil after the plant is harvested and properly treated (such as ashing recovery), the purposes of pollution treatment and ecological remediation are achieved, the phytoremediation time is long, and the defects that the plant root system cannot reach places to be remedied and the like exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a method for treating the saline-alkali soil polluted by the heavy metal. The method adopts a comprehensive treatment method to treat the saline-alkali soil polluted by heavy metals, can effectively remove the heavy metals and salt in the soil, improves the soil structure, and has short treatment time and obvious treatment effect.
In order to solve the technical problem, the technical scheme of the invention is as follows:
a method for treating saline-alkali soil polluted by heavy metals comprises the following steps:
a. and (3) land parcel sorting: selecting land blocks, deeply turning 50 cm of soil before treatment, paving a semipermeable membrane on the surface layer of the turned soil, adding 0.5-1.5 wt% of denatured magnet powder into the turned soil, uniformly mixing, covering and pouring with high water, and drying the surface layer for later use;
b. planting peacock vegetables: sowing peacock seeds in late March (covering films are needed for sowing in early spring); preparing soil before sowing: turning soil for 20-25 cm, applying saline-alkali soil remediation agent (50 kg per mu), leveling, raking finely, and ridging; then, uniformly scattering the treated peacock vegetable seeds in the grooves, covering the grooves with soil, and watering once;
c. field management: reasonable close planting is carried out during planting, and thinning is carried out properly; when the temperature is proper, the growth vigor is faster, more water and fertilizer are needed, and the soil humidity is not lower than 70%; when two or three leaves grow, nitrogen fertilizer is applied once; usually, attention is paid to pest control;
d. harvesting: the growth period of the peacock vegetables is 40-60 days, the peacock vegetables are harvested in time when mature, and the peacock vegetables are intensively destroyed after being harvested.
Preferably, the semi-permeable membrane is one of cellophane, parchment and gelatin film.
Preferably, the denatured magnet powder is prepared by stir-frying rubidium iron boron magnet powder at 130 ℃, dropwise adding hydrofluoric acid with the concentration of 20% while stir-frying, wherein the adding amount of the hydrofluoric acid is 0.2-0.3% of the total weight, and stir-frying for 12-18 minutes.
Preferably, the saline-alkali soil remediation agent consists of the following components in parts by weight: 50-60 parts of biochar, 13-17 parts of humic acid, 5-8 parts of nitrogen-phosphorus-potassium compound fertilizer, 12-20 parts of organic fertilizer, 11-15 parts of sawdust, 2-5 parts of microbial agent and 3-8 parts of diatomite.
Further, the saline-alkali soil remediation agent comprises the following components in parts by weight: 55 parts of biochar, 15 parts of humic acid, 6.5 parts of nitrogen-phosphorus-potassium compound fertilizer, 16 parts of organic fertilizer, 13 parts of sawdust, 3.5 parts of microbial agent and 5.5 parts of diatomite;
wherein the biochar is anaerobic biochar; the humic acid is primary humic acid; the nitrogen-phosphorus-potassium compound fertilizer is a mixture of urea, calcium superphosphate, potassium chloride and mineral powder residues; the organic fertilizer comprises animal waste, slaughtered animal wastes, crushed straws, soybean meal and vinegar residues; the microbial agent comprises halophil bacillus, azotobacter chroococcum, citric acid bacteria, cyanobacteria, zoogloea, streptomyces griseus, sulfate reducing bacteria, paecilomyces lilacinus, bacillus subtilis, aspergillus aculeatus and other mixed strains.
Preferably, 1000 kg of the nitrogen-phosphorus-potassium compound fertilizer contains 177.8kg of urea, 555.6kg of calcium superphosphate, 200kg of potassium chloride and 66.6kg of mineral powder residues.
Preferably, the mass ratio of the animal wastes, the sundries of slaughtered animals, the crushed straws, the soybean meal and the vinegar residues in the organic fertilizer is 45-55.
Preferably, the mass ratio of bacillus halophilus, azotobacter chroococcum, citric acid bacteria, cyanobacteria, zoogloea, streptomyces griseus, sulfate reducing bacteria, paecilomyces lilacinus, bacillus subtilis and aspergillus aculeatus in the microbial agent is 1 9 ～4.0×10 9 CFU。
Preferably, the malachite seed treatment comprises the steps of refrigerating the seeds in a refrigerator at the temperature of-30 ℃ for 10-15 minutes, soaking the seeds in the humic acid diluted liquid mixture for one minute, washing the seeds with clear water, and airing the seeds for later use. The treated seeds have fast germination, high germination rate and uniform germination.
Furthermore, the humic acid diluted liquid is prepared by dissolving 10 g of humic acid in 100 ml of tap water.
Preferably, the peacock vegetables are collected and then are subjected to centralized landfill or burning after being dried. To prevent secondary pollution.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the denatured magnet powder is adopted to adsorb heavy metal ions in soil, and then the magnet powder with heavy metals, salt ions and the like are deposited on the semipermeable membrane by leaching, so that the phenomenon that the heavy metals and the salt ions continuously sink to pollute underground water is avoided, and meanwhile, the semipermeable membrane also prevents the occurrence of salt return phenomenon. The processed semipermeable membrane can be kept in soil for a long time, or the semipermeable membrane and the soil layer above the semipermeable membrane by 5-10 cm are collected together and then are processed in a centralized way, so that the heavy metal ions and salt ions deposited after washing can be thoroughly removed.
2. According to the method, the saline-alkali soil remediation agent is added into the planting soil, wherein biochar, humic acid, diatomite and the like can perform chemical reactions such as complexation and chelation with heavy metal ions and salt ions in the polluted soil, and the heavy metals in the polluted soil are converted from an exchange state with high activity to an acid solution state with low activity and a residue state, so that harmfulness to an ecological system is reduced, and the salt ion concentration and the pH value of the soil are reduced; the organic fertilizer is added to supplement the fertility of the soil in the process of soil deep repair; the halophilic bacillus in the microbial agent can digest or transform saline and alkaline, and the soil condition is improved; the azotobacter can promote the growth of the malachite through the nitrogen fixation and phosphorus dissolution effects, release of phytohormone and the like, and promote the absorption and fixation of the malachite on heavy metals; the zoogloea and sulfate reducing bacteria can produce extracellular polymers such as polysaccharide and glycoprotein, and form a complex with heavy metal ions; the paecilomyces lilacinus, bacillus subtilis and aspergillus aculeatus have strong enrichment capacity on cadmium and lead; the citric acid bacteria can resist cobalt and thiobacillus bacteria and can oxidize copper, arsenic, molybdenum, iron and the like; and the combination of the bacteria can also degrade organic matters in soil so as to provide soil condition improvement and plant growth.
3. According to the method, the planted peacock vegetables are used for degrading or removing toxic substances in the polluted soil, and are used as newly appearing leaf-eating plants, except for eating, other applications are not found, the method is applied to the improvement of the saline-alkali soil polluted by heavy metals, the effect of the peacock vegetables on the improvement of the saline-alkali soil is found in the planting process, meanwhile, the enrichment capacity of the peacock vegetables on various heavy metals is far greater than that of other plants, and particularly, the method has better tolerance and repair capacity on the soil compositely polluted by cadmium and pyrene substances; therefore, the surface soil is repaired by using the malachite vegetable, and the treatment effect is good.
In a word, the treatment method has the advantages of wide application range, easy field construction and short repair period, can block the risk of residual heavy metals on the environment, can ensure that the saline-alkali soil energy after repair meets the standard of fertile farmlands, can plant common crops, has good treatment effect, is biologically safe and environment-friendly, and has popularization and application values.
Detailed Description
The invention is further illustrated by the following examples.
The first embodiment is as follows: production of saline-alkali soil repairing agent
a. Preparing a microbial agent: uniformly mixing finished products of halophil bacillus, azotobacter chroococcum, citric acid bacteria, cyanobacteria, zoogloea, streptomyces griseus, sulfate reducing bacteria, paecilomyces lilacinus, bacillus subtilis and aspergillus aculeatus (purchased from different microbial inoculum manufacturers) in a mass ratio of 1;
b. preparing an organic fertilizer: mixing and crushing animal wastes, slaughtered animal wastes, crushed straws, soybean meal and vinegar residues which are dried according to a mass ratio of 50;
c. preparing a nitrogen-phosphorus-potassium compound fertilizer: preparing 1000 kg of the fertilizer according to the proportion of 177.8kg of urea, 555.6kg of calcium superphosphate, 200kg of potassium chloride and 66.6kg of mineral powder slag for later use;
d. 55 parts of biochar, 15 parts of humic acid, 6.5 parts of nitrogen phosphorus potassium compound fertilizer, 16 parts of organic fertilizer, 13 parts of sawdust, 3.5 parts of microbial agent and 5.5 parts of diatomite are fully mixed according to the mass ratio and pressed into particles to obtain the finished product of the saline-alkali soil remediation agent.
Example two: production of saline-alkali soil repairing agent
a. Preparing a microbial agent: the method is the same as the first embodiment;
b. preparing an organic fertilizer: mixing and crushing animal wastes, slaughtered animal wastes, crushed straws, soybean meal and vinegar residues which are dried in a mass ratio of 45;
c. preparing a nitrogen-phosphorus-potassium compound fertilizer: the method is the same as the first embodiment;
d. fully mixing 60 parts of biochar, 13 parts of humic acid, 5 parts of nitrogen phosphorus potassium compound fertilizer, 12 parts of organic fertilizer, 15 parts of sawdust, 5 parts of microbial agent and 6 parts of diatomite according to the mass ratio, and pressing into particles to obtain the finished product of the saline-alkali soil remediation agent.
Example three: production of saline-alkali soil repairing agent
a. Preparing a microbial agent: the method is the same as the first embodiment; (ii) a
b. Preparing an organic fertilizer: mixing and crushing animal wastes, slaughtered animal wastes, crushed straws, soybean meal and vinegar residues which are dried according to a mass ratio of 55;
c. preparing a nitrogen-phosphorus-potassium compound fertilizer: the method is the same as the first embodiment;
d. fully mixing 50 parts of biochar, 17 parts of humic acid, 8 parts of nitrogen-phosphorus-potassium compound fertilizer, 20 parts of organic fertilizer, 11 parts of sawdust, 2 parts of microbial agent and 3 parts of diatomite according to the mass ratio, and pressing into particles to obtain the finished product of the saline-alkali soil remediation agent.
Example four: preparation of denatured magnet powder and caragana seed
The denatured magnet powder is prepared by stir-frying rubidium iron boron magnet powder at 130 ℃, dripping hydrofluoric acid with the concentration of 20 percent while stir-frying, wherein the addition amount of the hydrofluoric acid is 0.25 percent of the total weight, and stir-frying for 15 minutes;
the malachite seed is treated through cold storage in refrigerator at-30 deg.c for 12.5 min, soaking in diluted liquid mixture of humic acid in 10% concentration for one min, washing with clear water and drying in the air for use.
Example five: preparation of denatured magnet powder and caragana seed
The denatured magnet powder is prepared by stir-frying rubidium iron boron magnet powder at 130 ℃, dripping hydrofluoric acid with the concentration of 20 percent while stir-frying, wherein the addition amount of the hydrofluoric acid is 0.2 percent of the total weight, and stir-frying for 18 minutes;
the malachite seed treatment comprises refrigerating the seeds in a refrigerator at-30 deg.C for 10 min, soaking in a diluted liquid mixture of 10% humic acid for one min, washing with clear water, and air drying.
Example six: preparation of denatured magnet powder and caragana seed
The denatured magnet powder is prepared by stir-frying rubidium iron boron magnet powder at 130 ℃, dripping hydrofluoric acid with the concentration of 20% while stir-frying, wherein the addition amount of the hydrofluoric acid is 0.3% of the total weight, and stir-frying for 12 minutes;
the malachite seed treatment comprises refrigerating the seeds in a refrigerator at-30 deg.C for 15 min, soaking in a diluted liquid mixture of 10% humic acid for one min, washing with clear water, and air drying.
Example seven: treatment of heavy metal polluted saline-alkali soil
Experiments are carried out by adopting the saline-alkali soil remediation agent obtained in the first embodiment and the denatured magnet powder and caragana seeds obtained in the fourth embodiment. Experiments were conducted 3 months to 5 months in 2021.
a. And (3) land parcel sorting: selecting a 30X 30-meter sandy saline-alkali land plot in the Shandong Weifang coastal chemical industry park, turning over the land at 18-0 ℃ in 3 months and 5 days at 2021, deeply turning over 50 cm of soil, paving a semipermeable membrane on the surface layer after turning over the soil, arranging a plastic partition plate at the periphery of an experimental area to separate the plastic partition plate from the surrounding soil, performing contrast treatment on the surrounding soil (only planting caraway without treating seeds, and not performing any other treatment), adding 1.0 weight percent of denatured magnet powder into the turned-over soil, uniformly mixing, covering and returning, performing flood irrigation, and drying the surface layer for later use;
b. planting peacock vegetables: the peacock vegetables are sown in 25 days in 3 months (the peaches are back to the warmth in the same year without mulching films); preparing soil before sowing: turning soil by 20-25 cm, applying saline-alkali soil remediation agent (50 kg per mu), leveling, raking and ridging; then, uniformly scattering the treated peacock vegetable seeds in the grooves, covering the grooves with soil, and watering once;
c. and (3) field management: when in planting, reasonable close planting is carried out, dense plots are sowed, thinning is carried out properly, weak seedlings and sick seedlings are removed, and the management is easy only if the growth vigor is regular; when the temperature of the peacock vegetables is proper, the peacock vegetables grow fast, more water and fertilizer are needed, when the soil is dry, the peacock vegetables need to be watered once to permeate water, and the soil humidity is not lower than 70%; when two or three leaves grow, the field is kept moist, and when the growth is in a vigorous period, nitrogen fertilizer is applied once to promote the growth of the leaves; at ordinary times, the control of plant diseases and insect pests is paid attention to, the snails can spread plant ash in the field, and the flea beetles and cabbage caterpillars can be sprayed with the pyrethroid medicaments for control; damping-off, root rot, etc. can be prevented by spraying hymexazol;
d. harvesting: picking up peacock vegetables within 5 months and 20 days, sampling and detecting after picking, concentrating and drying in the sun, and then burning;
wherein, the soil is turned over in 3 months and 5 days, the soil is mixed with the deformed magnet powder, a semipermeable membrane is laid, after an isolation plastic plate is erected, a soil sample is taken for detection (three soil samples are taken randomly and mixed because of uniform mixing), meanwhile, the soil samples in the peripheral soil are taken (three places are taken randomly, and a soil sample in the depth of 20 cm is taken from each place respectively), and the soil samples in the same depth are mixed for detection; and when the peacock vegetables are harvested, detecting the salt content of the soil, the biomass of the peacock vegetables and the content of heavy metal ions in vegetable leaves, and comparing the soil conditions of the experimental plot with those of the surrounding control plots after the experiment is finished.
Comparative example one:
the plots surrounding the control-treated plots of the seven experiments of example were selected for the experiment of comparative example one, where peacock vegetable was planted only on the plots and no other treatment was performed.
Comparative example two:
the concrete experimental steps are the same as those in the seventh embodiment by adopting the modifying agent in the Chinese invention patent (CN 109759441A saline-alkali soil remediation method) as a control to carry out a comparison experiment.
Results and analysis:
in order to evaluate the specific technical effects of the saline-alkali soil remediation method, the same saline-alkali soil to be remediated is taken, the surface salt content of the saline-alkali soil is 32g/kg, the methods in the above embodiment and comparative example are respectively adopted to remediate the corresponding soil, the surface salt content of each soil is detected after remediation, the removal rate of the surface salt content is calculated, and the detection results are shown in table 1:
TABLE 1 salt content removal Rate
| Detecting items | Soil salinity (g/kg) before remediation | The salt content (g/kg) of the restored soil | Removal ratio (%) of salt content |
| Control group | 32 | 28 | 12.5 |
| Comparative example 1 | 32 | 23 | 28.1 |
| EXAMPLE seven | 32 | 6.2 | 80.6 |
| Comparative example No. two | 32 | 12.4 | 61.3 |
As can be seen from Table 1, the saline-alkali soil remediation method provided by the embodiment of the invention and the remediation method in the comparative example have remediation effects on saline-alkali soil. Wherein, the removal rates of the second comparative example and the seventh example on the salt content in the soil respectively reach 61.3 percent and 80.6 percent, which shows that the effect of applying the repairing agent of the invention is more obvious than that of applying the repairing conditioner of the first comparative example; meanwhile, the malachite planting after the iron powder treatment and the cold storage of the seeds and the liquid mixture dilution by humic acid also has a certain effect on removing the salt content of the saline-alkali soil, and compared with a control group, the removal rate of the salt content in the first comparative example is 15.6 percent higher.
The planting conditions of the peacocks in different treatments are shown in the table 2:
TABLE 2 Mallotus philippinensis aboveground and underground biomass
| Detecting items | The dry weight of the aerial plant (g/plant) | Plant dry weight of underground (g/plant) |
| Control group | 6.22 | 1.71 |
| Comparative example 1 | 6.37 | 1.79 |
| EXAMPLE seven | 7.16 | 1.98 |
| Comparative example No. two | 6.48 | 1.83 |
As can be seen from the table 2, under the same planting mode, the biomass of the malachite vegetables can be obviously increased by adding the soil remediation agent, wherein compared with a control group, the biomass of the overground part and the underground part of the malachite vegetables processed in the comparative example two is respectively increased by 4.2% and 7%, and the biomass of the overground part and the underground part of the malachite vegetables processed in the example seven is respectively increased by 15.1% and 15.8%. Meanwhile, the biomass of the peacock vegetables processed by the mixture of the refrigerated seeds and the diluted liquid of the humic acid is also increased, and compared with a control group, the biomass of the peacock vegetables processed by the mixture of the refrigerated seeds and the diluted liquid of the humic acid in the first comparative example is respectively 2.4 percent higher than that of the peacock vegetables processed by the mixture of the refrigerated seeds and 4.7 percent higher than that of the peacock vegetables processed by the mixture of the humic acid.
The soil changes for the different treatments are shown in table 3:
TABLE 3 basic soil Properties under different treatments
| Detecting items | pH | Organic matter (g/kg) | Available phosphorus (mg/kg) | Available nitrogen (mg/kg) | Quick-acting potassium (mu g/L) |
| Control group | 9.25 | 8.91 | 9.34 | 87 | 101 |
| EXAMPLE seven | 7.56 | 16.7 | 18.4 | 153 | 192 |
| Comparative example No. two | 8.41 | 9.23 | 11.2 | 102 | 147 |
As can be seen from table 3, the soil pH without the remediation agent applied was 9.25, and the soil pH after treatment of example seven and comparative example two was significantly reduced to 7.56 and 8.41, respectively. In addition, the soil nutrient after the treatment of the repairing agent of the embodiment is obviously improved, compared with a control group, the soil organic matter after the treatment of the comparative example II and the embodiment seven is respectively improved by 35.9 percent and 87.4 percent, the available phosphorus is respectively improved by 19.9 percent and 97 percent, the available nitrogen is respectively improved by 17.2 percent and 75.9 percent, and the available potassium is respectively improved by 45.5 percent and 90.1 percent.
The change of heavy metals in different treated soils is shown in table 4:
TABLE 4 determination of heavy metals in soil
As can be seen from Table 4, the concentration of lead, cadmium, copper and zinc ions in the treated soil reaches the secondary standard value of the heavy metal content of the agricultural dry land in the national soil environment quality standard GB 15618-2008. Compared with a control group, the heavy metal ion concentration in the soil after the repairing agent is applied is reduced, wherein the repairing agent has the most obvious effect. Compared with a control group, the copper content of the soil after the treatment of the comparative example II and the seventh example is respectively reduced by 70.4 percent and 96.7 percent, the lead content is respectively reduced by 42.9 percent and 91.4 percent, the zinc content is respectively reduced by 56.6 percent and 88.3 percent, and the cadmium content is respectively reduced by 57.6 percent and 82.9 percent. Meanwhile, the content of copper in the peacock treated soil treated by the iron powder treatment and the peacock seed treated by the mixture of the refrigerated storage and the humic acid diluted liquid is reduced by 14.2 percent, the content of lead is reduced by 14.3 percent, the content of zinc is reduced by 9.4 percent, and the content of cadmium is reduced by 19 percent.
The accumulation of the heavy metals in the peacock vegetables in different treatments is shown in table 5:
TABLE 5 accumulation of heavy metals in Malachi
| Detecting items | Cumulative amount of copper (μ g/strain) | Cumulative amount of lead (μ g/strain) | Cumulative amount of zinc (μ g/strain) | Cumulative amount of cadmium (μ g/strain) |
| Control group | 10.2 | 6.9 | 13.2 | 5.1 |
| Comparative example 1 | 10.8 | 7.6 | 14.9 | 6.3 |
| EXAMPLE seven | 14.7 | 10.1 | 21.2 | 8.5 |
| Comparative example No. two | 12.1 | 8.5 | 16.7 | 7.4 |
As can be seen from table 5, in the same planting mode, the total accumulated weight metals in the malachite vegetables can be significantly increased by applying the repairing agent (the repairing agent of the present invention and the improving agent of the comparative example, the prior art patent), and the repairing agent of the present invention is most effective. Compared with the control group, the accumulation amounts of copper, lead, zinc and cadmium in the peacock vegetables treated in the comparative example are respectively increased by 18.6%, 23.2%, 26.5% and 45.1%, and the accumulation amounts of copper, lead, zinc and cadmium in the peacock vegetables treated in the example seven are respectively increased by 44.1%, 46.4%, 60.6% and 66.7%. The method proves that the heavy metal absorbing capacity of the malachite can be obviously improved under the condition of applying the repairing agent in planting. Meanwhile, the adsorption effect of the peacock vegetables treated by the peacock vegetables with the seeds treated by the refrigerated and humic acid diluted liquid mixture on the soil heavy metal is also improved to a certain extent, and the accumulation amounts of copper, lead, zinc and cadmium in the peacock vegetables treated in the first comparative example are respectively improved by 5.9%, 10.1%, 12.9% and 23.5% compared with those in the control group.
The results show that the soil remediation method of the invention gives full play to the combined treatment mode of saline-alkali soil remediation agent, iron powder, flood irrigation and malachite planting, can obviously reduce the heavy metal pollution of the saline-alkali soil, and can increase the biomass of crops while improving the soil.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. A method for treating saline-alkali soil polluted by heavy metals is characterized by comprising the following steps:
a. arranging the land blocks: selecting a land mass, deeply ploughing 50 cm of soil before treatment, paving a semipermeable membrane on the surface layer after ploughing the soil, adding 0.5-1.5 wt% of denatured magnet powder into the ploughed soil, uniformly mixing, covering and pouring with big water, and waiting for drying the surface layer for later use;
b. planting peacock vegetables: sowing peacock seeds in late March; preparing soil before sowing: turning soil for 20-25 cm, applying a saline-alkali soil remediation agent, leveling, raking finely, and making beds; then, uniformly scattering the treated peacock vegetable seeds in the grooves, covering the grooves with soil, and watering once;
c. field management: reasonable close planting is carried out during planting, and appropriate thinning is carried out; the soil humidity is not lower than 70%, and when two or three leaves grow, nitrogen fertilizer is applied once; usually, attention is paid to pest control;
d. harvesting: the growth period of the peacock vegetables is 40-60 days, the peacock vegetables are harvested in time when mature, and the peacock vegetables are intensively destroyed after being harvested.
2. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 1, which is characterized in that: the semi-permeable membrane is one of cellophane, parchment and gelatin film.
3. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 1, which is characterized in that: the denatured magnet powder is prepared by stir-frying rubidium iron boron magnet powder at 130 ℃, dripping hydrofluoric acid with the concentration of 20 percent while stir-frying, wherein the addition amount of the hydrofluoric acid is 0.2 to 0.3 percent of the total weight, and stir-frying for 12 to 18 minutes.
4. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 1, which is characterized in that: the saline-alkali soil remediation agent comprises the following components in parts by weight: 50-60 parts of biochar, 13-17 parts of humic acid, 5-8 parts of nitrogen-phosphorus-potassium compound fertilizer, 12-20 parts of organic fertilizer, 11-15 parts of sawdust, 2-5 parts of microbial agent and 3-8 parts of diatomite.
5. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 4, wherein the method comprises the following steps: the saline-alkali soil remediation agent comprises the following components in parts by weight: 55 parts of biochar, 15 parts of humic acid, 6.5 parts of nitrogen-phosphorus-potassium compound fertilizer, 16 parts of organic fertilizer, 13 parts of sawdust, 3.5 parts of microbial agent and 5.5 parts of diatomite.
6. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 4, wherein the method comprises the following steps: the biochar is anaerobic biochar; the humic acid is primary humic acid; the nitrogen-phosphorus-potassium compound fertilizer is a mixture of urea, calcium superphosphate, potassium chloride and mineral powder residues; the organic fertilizer comprises animal waste, slaughtered animal wastes, crushed straws, soybean meal and vinegar residues; the microbial agent comprises halophilus bacillus, azotobacter chroococcum, citric acid bacteria, cyanobacteria, zoogloea, streptomyces griseus, sulfate reducing bacteria, paecilomyces lilacinus, bacillus subtilis and aspergillus aculeatus.
7. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 4, wherein the method comprises the following steps: 1000 kilograms of the nitrogen-phosphorus-potassium compound fertilizer contains 177.8 kilograms of urea, 555.6 kilograms of calcium superphosphate, 200 kilograms of potassium chloride and 66.6 kilograms of mineral powder residues; the mass ratio of the animal waste, the sundries of slaughtered animals, the crushed straws, the bean pulp and the vinegar residue in the organic fertilizer is 45-55; the mass ratio of bacillus halophilus, azotobacter torvum, citric acid bacteria, cyanobacteria, zoogloea, streptomyces griseus, sulfate reducing bacteria, paecilomyces lilacinus, bacillus subtilis and aspergillus aculeatus in the microbial agent is 1 9 ～4.0×10 9 CFU。
8. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 1, which is characterized in that: the malachite seed treatment comprises the steps of refrigerating the seeds in a refrigerator at the temperature of minus 30 ℃ for 10-15 minutes, soaking the seeds in a humic acid diluted liquid mixture for one minute, cleaning the seeds with clear water, and airing the seeds for later use.
9. The method for treating the heavy metal polluted saline-alkali soil of claim 8, which is characterized by comprising the following steps: the humic acid dilution liquid is prepared by dissolving 10 g of humic acid in 100 ml of tap water.
10. The method for treating the saline-alkali soil polluted by the heavy metal as claimed in claim 1, which is characterized in that: and after being collected, the peacock vegetables are subjected to centralized landfill or incineration after being dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975402.8A CN115193901A (en) | 2022-08-15 | 2022-08-15 | Treatment method for heavy metal polluted saline-alkali soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975402.8A CN115193901A (en) | 2022-08-15 | 2022-08-15 | Treatment method for heavy metal polluted saline-alkali soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115193901A true CN115193901A (en) | 2022-10-18 |
Family
ID=83585634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210975402.8A Pending CN115193901A (en) | 2022-08-15 | 2022-08-15 | Treatment method for heavy metal polluted saline-alkali soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115193901A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974605A (en) * | 2012-12-17 | 2013-03-20 | 常州大学 | Bioavailability-based phytoremediation technique for Cd-polluted soil |
| CN107321298A (en) * | 2017-07-03 | 2017-11-07 | 浙江大学 | The preparation method of modified magnetite and its application in heavy metal pollution reparation |
| CN108607874A (en) * | 2018-07-30 | 2018-10-02 | 青岛冠中生态股份有限公司 | A kind of restorative procedure of north abandoned location of industry and mining heavy metal pollution |
| CN109226223A (en) * | 2018-10-18 | 2019-01-18 | 华北水利水电大学 | A kind of heavy-metal contaminated soil in-situ immobilization technique |
| CN113210418A (en) * | 2021-03-18 | 2021-08-06 | 交大环境保护研究院(江苏)有限公司 | Method for repairing heavy metal pollution of mine soil by combining plant solid waste |
| CN113403083A (en) * | 2021-05-08 | 2021-09-17 | 华南师范大学 | Magnetic soil remediation agent for soil polluted by heavy metals and preparation method and application thereof |
-
2022
- 2022-08-15 CN CN202210975402.8A patent/CN115193901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974605A (en) * | 2012-12-17 | 2013-03-20 | 常州大学 | Bioavailability-based phytoremediation technique for Cd-polluted soil |
| CN107321298A (en) * | 2017-07-03 | 2017-11-07 | 浙江大学 | The preparation method of modified magnetite and its application in heavy metal pollution reparation |
| CN108607874A (en) * | 2018-07-30 | 2018-10-02 | 青岛冠中生态股份有限公司 | A kind of restorative procedure of north abandoned location of industry and mining heavy metal pollution |
| CN109226223A (en) * | 2018-10-18 | 2019-01-18 | 华北水利水电大学 | A kind of heavy-metal contaminated soil in-situ immobilization technique |
| CN113210418A (en) * | 2021-03-18 | 2021-08-06 | 交大环境保护研究院(江苏)有限公司 | Method for repairing heavy metal pollution of mine soil by combining plant solid waste |
| CN113403083A (en) * | 2021-05-08 | 2021-09-17 | 华南师范大学 | Magnetic soil remediation agent for soil polluted by heavy metals and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 范永强: "设施栽培土壤生态化技术", 31 July 2020, 山东科学技术出版社, pages: 163 - 164 * |
| 韩薇薇: "有趣的磁学", 31 January 2014, 吉林美术出版社, pages: 134 - 135 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106905980B (en) | Heavy metal soil remediation agent, preparation method and application thereof in sludge digestion | |
| CN105344708B (en) | A kind of restorative procedure of alkaline land soil heavy metal pollution | |
| CN101928179B (en) | Slow release fertilizer having soil remediation function and soil contamination remediation method | |
| CN107318548B (en) | Method for safely producing rice in cadmium-polluted soil | |
| CN108856282B (en) | Composite remediation method for heavy metal contaminated farmland soil | |
| CN103238440B (en) | Method for reducing cadmium pollution risk for rape | |
| CN105170641A (en) | Combined remediation method for heavy metal contaminated soil | |
| CN111955297B (en) | Method for passivating heavy metals in rice field and increasing nitrogen holding capacity | |
| CN104725147A (en) | Process for preparing organic-inorganic compound fertilizer from bio-fermented amino acid wastewater | |
| CN107384426A (en) | A kind of renovation agent of cation heavy-metal contaminated soil and preparation method thereof | |
| CN110860557A (en) | Remediation method of composite heavy metal contaminated soil | |
| CN111992580A (en) | Remediation method for heavy metal polluted farmland | |
| CN113200786A (en) | Disease-preventing insect-preventing biological water-retaining organic-inorganic compound fertilizer | |
| CN108817069A (en) | A kind of heavy metallic activation agent and its application in soil joint is repaired | |
| CN109127693B (en) | Method for restoring Cu, Pb and As polluted soil by inoculating sunflower and castor with bacillus subtilis | |
| CN106905052A (en) | Heavy metal pollution alkaline land modifying agent and saline and alkali land improvement method comprising spent bleaching clay | |
| CN110252803B (en) | Cadmium-contaminated soil composite passivator and application thereof | |
| CN106316677A (en) | Bio-fertilizer and preparation method thereof | |
| CN102151692B (en) | Method for repairing nitrobenzene compound contaminated soil by utilizing flax | |
| CN115193901A (en) | Treatment method for heavy metal polluted saline-alkali soil | |
| CN107155440A (en) | A kind of method of the fast quick-recovery agricultural continuous cropping soil soil fertility of utilization complex microorganism | |
| CN104012353A (en) | Comprehensive fertilization technology for cultivating high-yield and high-quality super hybrid rice and repairing and improving farmlands contaminated by heavy metal | |
| CN113812292A (en) | Method for preventing and treating pear tree yellowing disease | |
| CN106831266A (en) | Heavy metal pollution alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay | |
| CN102189098A (en) | Method for restoring soil polluted by nitrobenzene compounds through utilizing spring wheat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |