CN115340874A - Saline-alkali soil treatment agent using waste resources and preparation method thereof - Google Patents
Saline-alkali soil treatment agent using waste resources and preparation method thereof Download PDFInfo
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- CN115340874A CN115340874A CN202211041472.2A CN202211041472A CN115340874A CN 115340874 A CN115340874 A CN 115340874A CN 202211041472 A CN202211041472 A CN 202211041472A CN 115340874 A CN115340874 A CN 115340874A
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- Prior art keywords
- saline
- alkali soil
- treatment agent
- acid
- coal gangue
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- 239000002689 soil Substances 0.000 title claims abstract description 110
- 239000003513 alkali Substances 0.000 title claims abstract description 82
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 70
- 239000002699 waste material Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 20
- 239000003245 coal Substances 0.000 claims abstract description 97
- 239000000843 powder Substances 0.000 claims abstract description 51
- 239000003516 soil conditioner Substances 0.000 claims abstract description 38
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 22
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 22
- 239000000467 phytic acid Substances 0.000 claims abstract description 22
- 229940068041 phytic acid Drugs 0.000 claims abstract description 22
- 239000000178 monomer Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000003999 initiator Substances 0.000 claims abstract description 14
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 12
- 150000007524 organic acids Chemical class 0.000 claims abstract description 11
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 21
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 239000010902 straw Substances 0.000 claims description 14
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 12
- 230000003213 activating effect Effects 0.000 claims description 11
- 238000004132 cross linking Methods 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical group O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 230000006872 improvement Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 8
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 7
- 241000194107 Bacillus megaterium Species 0.000 claims description 7
- 244000063299 Bacillus subtilis Species 0.000 claims description 7
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 7
- 241000881860 Paenibacillus mucilaginosus Species 0.000 claims description 7
- 229920002873 Polyethylenimine Polymers 0.000 claims description 7
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 7
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 7
- 239000007633 bacillus mucilaginosus Substances 0.000 claims description 7
- 239000001630 malic acid Substances 0.000 claims description 7
- 235000011090 malic acid Nutrition 0.000 claims description 7
- 235000006408 oxalic acid Nutrition 0.000 claims description 7
- 235000002906 tartaric acid Nutrition 0.000 claims description 7
- 239000011975 tartaric acid Substances 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 5
- 241000194032 Enterococcus faecalis Species 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 5
- 229940032049 enterococcus faecalis Drugs 0.000 claims description 5
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 5
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000003077 lignite Substances 0.000 claims description 4
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical class [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 239000002068 microbial inoculum Substances 0.000 claims description 3
- 239000003250 coal slurry Substances 0.000 claims description 2
- 238000005067 remediation Methods 0.000 claims 3
- 239000002364 soil amendment Substances 0.000 claims 1
- 238000001354 calcination Methods 0.000 abstract description 9
- 239000003337 fertilizer Substances 0.000 abstract description 7
- 230000012010 growth Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 6
- 239000002910 solid waste Substances 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000003905 agrochemical Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 22
- 239000011591 potassium Substances 0.000 description 22
- 229910052700 potassium Inorganic materials 0.000 description 22
- 239000002253 acid Substances 0.000 description 14
- 239000002994 raw material Substances 0.000 description 11
- 238000005406 washing Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 240000008042 Zea mays Species 0.000 description 7
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 7
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 7
- 235000005822 corn Nutrition 0.000 description 7
- 239000005457 ice water Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 description 6
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide Chemical group CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000011573 trace mineral Substances 0.000 description 5
- 235000013619 trace mineral Nutrition 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 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
- 230000007935 neutral effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a saline-alkali soil treatment agent utilizing waste resources and a preparation method thereof, belonging to the technical field of agricultural chemical fertilizer application. The saline-alkali soil treatment agent comprises the following components in parts by weight: 25 to 35 portions of coal gangue powder, 42 to 52 portions of organic acid, 2 to 4 portions of phytic acid, 6 to 9 portions of humate, 0.5 to 1.2 portions of hydrophilic monomer, 9.7 to 12.1 portions of soil conditioner, 0.7 to 1.0 portion of initiator and 0.1 to 0.3 portion of cross-linking agent. The saline-alkali soil treatment agent is prepared by adding organic acid into coal gangue to obtain modified coal gangue, calcining, adding an initiator, a cross-linking agent and a hydrophilic monomer for reaction, and extruding and granulating. The saline-alkali soil treatment agent fully utilizes desertification land and waste resources to improve the physicochemical property of soil, can improve the types and the quantity of soil microorganisms while reducing the cost, strengthens the water retention and fertilizer retention performance of the soil, is favorable for the growth and development of plants, and realizes the reutilization of solid wastes while increasing the available land resources.
Description
Technical Field
The invention belongs to the technical field of agricultural fertilizer application, and particularly relates to a saline-alkali soil treatment agent using waste resources and a preparation method thereof.
Background
The land salinization problem can lead to soil physicochemical property and nutritional condition to worsen, in addition drainage, wash salt and increase the ration and irrigate, soil can release nitrogen and promote its validity and make soil salt break, greatly reduced organic matter content, quick-acting phosphorus appears descending by a wide margin, simultaneously because higher pH value of soil and high calcium carbonate content, phosphorus constantly forms the phosphate in soil, hardly dissolve, the validity of phosphorus constantly reduces, the validity of elements such as zinc, manganese, iron and copper also constantly reduces, make organic matter content reduce in the soil, and then seriously influence the normal growth of crop.
Aiming at the problem of land salinization, common treatment modes include land leveling, salt suppression and soil improvement by fertilization, salt suppression by deep ploughing, vibration deep scarification, salt improvement by rice planting, tree planting and afforestation and the like, but the modes have higher cost and slow effect. In addition, the saline-alkali soil can be treated by applying a soil treatment agent, but the common soil treatment agents mostly use natural or artificial substances as raw materials, and also have the problem of high cost.
The coal gangue is used as solid waste discharged in the coal mining and coal washing processes, a large amount of accumulated coal gangue is easy to cause environmental pollution and waste of resources, but the development and utilization modes of the coal gangue are less at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a saline-alkali soil treatment agent utilizing waste resources and a preparation method thereof, and solves the problems of high saline-alkali treatment cost, slow effect and coal gangue stacking of the land.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention discloses a saline-alkali soil treatment agent using waste resources, which comprises the following components in parts by weight: 25 to 35 portions of coal gangue powder, 42 to 52 portions of organic acid, 2 to 4 portions of phytic acid, 6 to 9 portions of humate, 0.5 to 1.2 portions of hydrophilic monomer, 9.7 to 12.1 portions of soil conditioner, 0.7 to 1.0 portion of initiator and 0.1 to 0.3 portion of cross-linking agent.
Preferably, the organic acid is one or more of citric acid, malic acid, tartaric acid and oxalic acid.
Preferably, the humate is derived from low-rank coal, fly ash, lignite or coal slurry.
Preferably, the hydrophilic monomer is one of glycidyl methacrylate, methyl methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, acrylic acid, acrylamide, and acrylonitrile.
Preferably, the soil conditioner is one or more of microbial agent, straw, furfural residue and agricultural sulfur.
Further preferably, the microbial agent is one or more of bacillus subtilis, bacillus megaterium, bacillus mucilaginosus and enterococcus faecalis.
Preferably, the initiator includes azo-based compounds including azobisisobutyronitrile and azobisisoheptonitrile, and persulfate-based compounds including potassium persulfate and sodium persulfate.
Preferably, the crosslinking agent is an EDC/NHS mixture, N-methylenebisacrylamide, polyethyleneimine or 1, 4-butanediol diglycidyl ether.
The invention also discloses a preparation method of the saline-alkali soil treatment agent by utilizing the waste resources, which comprises the steps of fully dissolving the modified coal gangue powder and the phytic acid, adding the humate, the hydrophilic monomer and the soil conditioner to react for 1-5 hours at normal temperature, stirring at normal temperature, adding the initiator and the cross-linking agent to perform cross-linking reaction for 1-4 hours at 0-10 ℃, and performing pressurized granulation to prepare the saline-alkali soil treatment agent.
Preferably, the preparation method of the soil conditioner comprises the following steps: decomposing and activating one or more of microbial inoculum, straw, furfural residue and agricultural sulfur for 5-20 days to prepare the soil conditioner.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a saline-alkali soil treatment agent utilizing waste resources, which mainly takes modified coal gangue as a carrier and combines a soil conditioner, a hydrophilic monomer, an initiator and a cross-linking agent to form a three-dimensional network structure compound fertilizer which has water retention property, is rich in organic matters and carbon, phosphorus and potassium required by plant growth. The coal gangue is used as a main component, so that the problems of environmental pollution and resource waste caused by accumulation of coal gangue solid wastes can be solved, and the manufacturing cost of the soil treatment agent is reduced, and on the other hand, the coal gangue is rich in mineral humic acid required by plant growth, and the saline-alkali soil is modified by using the characteristics of loose texture of weathered substances, organic matters, quick-acting potassium and rich content of alkaline-hydrolyzable nitrogen, so that the effect of reducing the pH value of the saline-alkali soil can be achieved. The organic acid is used for modifying the coal gangue, so that the coal gangue becomes a porous material, and the coal gangue is used as a carrier to be combined with the soil conditioner and the hydrophilic monomer, so that the performance of the soil conditioner for improving the soil saline-alkali soil is further enhanced. The phytic acid can adjust the pH value of soil, provides a reaction environment in the preparation process, and can release P simultaneously to provide phosphorus for crops. The hydrophilic monomer can play a role in fixing the water in the soil treatment agent, and can avoid soil hardening and environmental pollution caused by excessive use of chemical fertilizers. The soil conditioner can improve the content of organic matters in soil and supplement elements lacking in saline-alkali soil. The initiator activates low molecules of double bonds in the monomer molecules or linear molecular chains to form radicals in the polymerization reaction, and the initiator induces the reaction to occur. The humate is used as a non-uniform aliphatic aromatic amorphous organic salt mixture which is rich in various active functional groups such as carboxyl, phenolic hydroxyl, quinonyl, carbonyl, methoxyl and the like, can provide various nutrient components required by growth and development of plants, can obviously promote the growth and development of crops, stimulate the growth of the crops, purify the soil environment, increase the number and activity of soil microorganisms, and improve the nutrition of plant root systems, thereby responding to the concept of green sustainable development. The saline-alkali soil treatment agent with the three-dimensional network structure formed by the combined reaction of the components is porous and densely distributed, can reduce the passing of elements required by crops, effectively stores water in soil, enables the water absorption rate of the improved soil to be as high as 30g/g, can provide a better growth environment for the crops or plants compared with the traditional fertilizer and farmyard manure, and is quicker to take effect. The saline-alkali soil treatment agent can adsorb heavy metal ions, improve the physical and chemical properties of soil, bond the soil in the saline-alkali soil, increase soil aggregates, further reduce the passage of water, soil and organic matters, improve the types and the quantity of soil microorganisms, strengthen the water retention and fertilizer retention performances of the soil, be favorable for plant growth and development, and realize the reutilization of solid wastes when fully utilizing the saline-alkali soil and desertification land resources and increasing the usable land resources. Compared with the existing saline-alkali soil treatment agent, the saline-alkali soil treatment agent provided by the invention has the advantages of lower cost, environmental friendliness, long acting time and low energy consumption on the basis of good water retention property, so that the saline-alkali soil is changed to a good field.
The preparation method of the saline-alkali soil treatment agent by using the waste resources, provided by the invention, is simple, the gangue and the organic acid in the used raw materials are cheap and easy to obtain, the manufacturing cost can be effectively reduced, the selected raw materials are mild and easy to operate, and the soil cannot be damaged. The saline-alkali soil treatment agent prepared by the method is environment-friendly, takes effect quickly, and has the properties of water absorption, soil restoration and improvement and crop quality improvement.
Drawings
FIG. 1 is a flow chart of the preparation of the saline-alkali soil improvement agent of the present invention;
FIG. 2 is a scanning electron microscope image of the saline-alkali soil improvement agent prepared in example 1 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The potassium humate in the invention can be prepared by the preparation method in the embodiment, and can also be directly purchased.
The invention is described in further detail below with reference to the accompanying drawings:
the saline-alkali soil treatment agent utilizing waste resources comprises, by mass, 25-35 parts of coal gangue powder, 42-52 parts of organic acid, 2-4 parts of phytic acid, 6-9 parts of humate, 0.5-1.2 parts of hydrophilic monomer, 9.7-12.1 parts of soil conditioner, 0.7-1.0 part of initiator and 0.1-0.3 part of cross-linking agent;
wherein the organic acid is one or more of citric acid, malic acid, tartaric acid and oxalic acid; the humate is derived from one of low-rank coal, fly ash, lignite and coal slime, and is potassium humate; the hydrophilic monomer is one of glycidyl methacrylate, methyl methacrylate, 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid, acrylamide and acrylonitrile; the soil conditioner is one or more of a microbial agent, straws, furfural residues and agricultural sulfur, the microbial agent is composed of one or more of bacillus subtilis, bacillus megaterium, bacillus mucilaginosus and enterococcus faecalis, and the straws are corn straws; the initiator comprises azo and persulfate, wherein the azo comprises azobisisobutyronitrile and azobisisoheptonitrile, the persulfate comprises potassium persulfate and sodium persulfate, and one of the azobisisobutyronitrile, the azobisisoheptonitrile, the potassium persulfate and the sodium persulfate is selected during use; the crosslinking agent is EDC/NHS mixture (i.e. 1-ethyl- (3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide mixture), N-methylenebisacrylamide, polyethyleneimine or 1, 4-butanediol diglycidyl ether.
According to the preparation method of the saline-alkali soil treatment agent by utilizing the waste resources, as shown in figure 1, coal gangue raw materials are ground and processed, and are sieved by a sieve with 50-200 meshes to obtain coal gangue powder; carrying out acid treatment on the coal gangue powder by using organic acid, washing the coal gangue powder by using deionized water for 3 to 6 times, and calcining the coal gangue powder for 10 to 20 hours at the temperature of between 500 and 700 ℃ to prepare modified coal gangue powder for later use. Decomposing and activating one or more of microbial inoculum, straw, furfural residue and agricultural sulfur for 5-20 days to prepare the soil conditioner for later use. Dispersing phytic acid and modified coal gangue powder in water, adding humate, a hydrophilic monomer and a soil conditioner to react for 1-5 h at normal temperature, adding an initiator and a crosslinking agent at the speed of 1-2 drops per second under the condition of stirring at normal temperature, cooling to 0-10 ℃ after dropping, carrying out crosslinking reaction for 1-4 h, and carrying out pressure granulation to prepare the saline-alkali soil treatment agent.
The invention is described in further detail below with reference to specific examples:
EXAMPLE 1
A saline-alkali soil treatment agent comprises, by mass, 25 parts of coal gangue powder, 52 parts of malic acid, 3 parts of phytic acid, 8 parts of potassium humate, 0.5 part of acrylamide, 1 part of bacillus subtilis, 9.5 parts of corn straw, 0.9 part of azodiisobutyronitrile and 0.1 part of N, N-methylene bisacrylamide;
wherein the humate is derived from coal slime.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground into powder and then is sieved by a 50-mesh sieve to obtain the coal gangue powder.
2) And dissolving 25 parts of coal gangue powder obtained after sieving in 52 parts of malic acid, fully mixing, filtering, washing with deionized water for 3 times, and drying to obtain the acid-treated coal gangue. And (3) putting the acid-treated coal gangue into a muffle furnace, and calcining for 10 hours at 500 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 1 part of bacillus subtilis and 9.5 parts of corn straw at normal temperature for 5 days to prepare the soil conditioner.
4) Dispersing 3 parts of phytic acid and the modified coal gangue powder obtained in the step 2) into water, adding 8 parts of potassium humate, 0.5 part of acrylamide and the soil conditioner obtained in the step 3) to react for 1 hour at normal temperature, adding 0.9 part of azodiisobutyronitrile and 0.1 part of N, N-methylene bisacrylamide, carrying out cross-linking reaction for 4 hours at the temperature of 0 ℃ in an ice water bath, and carrying out pressure granulation to prepare a saline-alkali soil conditioner;
the preparation method of the potassium humate comprises the following steps: weighing a coal mud sample dried by 80 meshes, adding diluted hydrochloric acid according to the solid-liquid ratio of 1g (10-13) mL, heating, boiling and activating, cooling, washing the precipitate to be neutral, adding 10-20% potassium hydroxide solution according to the solid-liquid ratio of 1g (8-10) mL, heating and stirring in a boiling water bath at 100 ℃ for 1-3 hours, cooling to room temperature, carrying out centrifugal filtration, and weighing the mass of filter residue; and adding dilute hydrochloric acid into the filtrate to adjust the pH value to 1-3, standing for 24h, filtering, collecting the precipitate, and drying to constant weight to obtain the potassium humate.
By observing the prepared saline-alkali soil treatment agent under a scanning electron microscope, as can be seen from figure 2, the saline-alkali soil treatment agent has a three-dimensional network structure under the scanning electron microscope, and has a porous structure, more pores are distributed compactly, the shapes of the pores are irregular, the sizes of the pores are different, and the pore diameters of the pores are 50-100 micrometers.
Example 2
A saline-alkali soil treatment agent comprises, by mass, 27 parts of coal gangue powder, 49 parts of citric acid, 4 parts of phytic acid, 8 parts of potassium humate, 0.6 part of propanesulfonic acid, 1.1 parts of bacillus megaterium, 9.2 parts of corn straw, 1 part of azodiisoheptanonitrile and 0.1 part of polyethyleneimine;
wherein the humate is derived from low rank coal.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground and processed, and then is sieved by a 200-mesh sieve to obtain the coal gangue powder.
2) And dissolving 27 parts of sieved coal gangue powder in 49 parts of citric acid, fully mixing, filtering, washing with deionized water for 6 times, and drying to obtain the acid-treated coal gangue. And putting the acid-treated coal gangue into a muffle furnace, and calcining for 20 hours at 700 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 1.1 parts of bacillus megatherium and 9.2 parts of corn straw for 20 days at normal temperature to obtain the soil conditioner.
4) Dispersing 4 parts of phytic acid and the modified coal gangue powder prepared in the step 2) into water, adding 8 parts of potassium humate, 0.6 part of propanesulfonic acid and the soil conditioner obtained in the step 3) to react for 5 hours at normal temperature, adding 1 part of azobisisoheptonitrile and 0.1 part of polyethyleneimine, carrying out crosslinking reaction for 4 hours when the temperature of an ice water bath is 10 ℃, and carrying out pressure granulation to prepare the saline-alkali soil conditioner.
Example 3
A saline-alkali soil treatment agent comprises, by mass, 27 parts of coal gangue powder, 50 parts of tartaric acid, 3 parts of phytic acid, 7 parts of potassium humate, 0.7 part of acrylonitrile, 0.7 part of bacillus mucilaginosus, 10.5 parts of furfural residue, 0.9 part of sodium persulfate and 0.2 part of 1, 4-butanediol diglycidyl ether;
wherein the humate is derived from low-rank coal.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground into powder and then is sieved by a 100-mesh sieve to obtain the coal gangue powder.
2) And dissolving 27 parts of sieved coal gangue powder in 50 parts of tartaric acid, fully mixing, filtering, washing with deionized water for 4 times, and drying to obtain the acid-treated coal gangue. And (3) putting the acid-treated coal gangue into a muffle furnace, and calcining for 11h at 550 ℃ to obtain modified coal gangue powder.
3) And (3) decomposing and activating 0.7 part of bacillus mucilaginosus and 10.5 parts of furfural residues at normal temperature for 7 days to obtain the soil conditioner.
4) Dispersing 3 parts of phytic acid and modified coal gangue powder in water, adding 7 parts of potassium humate, 0.7 part of acrylonitrile and the soil conditioner obtained in the step 3), reacting for 2 hours at normal temperature, adding 0.9 part of sodium persulfate and 0.2 part of 1, 4-butanediol diglycidyl ether, carrying out cross-linking reaction for 2 hours at 6 ℃ in an ice water bath, and carrying out pressure granulation to prepare the saline-alkali soil conditioner.
Example 4
A saline-alkali soil treatment agent comprises, by mass, 29 parts of coal gangue powder, 47 parts of oxalic acid, 2 parts of phytic acid, 9 parts of potassium humate, 1 part of glycidyl methacrylate, 0.9 part of enterococcus faecalis, 10 parts of agricultural sulfur, 0.9 part of potassium persulfate and 0.3 part of EDC/NHS mixture;
wherein the humate is derived from fly ash.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground into powder and then is sieved by a 150-mesh sieve to obtain the coal gangue powder.
2) And (3) dissolving 29 parts of sieved coal gangue powder in 47 parts of oxalic acid, fully mixing, filtering, washing with deionized water for 5 times, and drying to obtain the acid-treated coal gangue. And (3) putting the acid-treated coal gangue into a muffle furnace, and calcining for 13 hours at 600 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 0.9 part of enterococcus faecalis and 10 parts of agricultural sulfur at normal temperature for 9 days to obtain the soil conditioner.
4) Dispersing 2 parts of phytic acid and modified coal gangue powder in water, adding 9 parts of potassium humate, 1 part of glycidyl methacrylate and the soil conditioner obtained in the step 3), reacting for 1 hour at normal temperature, adding a mixture of 0.9 part of potassium persulfate and 0.3 part of EDC/NHS, carrying out cross-linking reaction for 3 hours in an ice water bath at 6 ℃, and carrying out pressure granulation to prepare the saline-alkali soil conditioner.
Example 5
A saline-alkali soil treatment agent comprises, by mass, 31 parts of coal gangue powder, 47 parts of malic acid, 2 parts of phytic acid, 6 parts of potassium humate, 0.9 part of methyl methacrylate, 0.8 part of bacillus subtilis, 11.3 parts of furfural residue, 0.7 part of sodium persulfate and 0.3 part of N, N-methylene bisacrylamide;
wherein the humate is derived from low rank coal.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground and processed, and then is sieved by a 80-mesh sieve to obtain the coal gangue powder.
2) Dissolving 31 parts of sieved coal gangue powder in 47 parts of malic acid, fully mixing, filtering, washing with deionized water for 6 times, and drying to obtain the acid-treated coal gangue. And (3) putting the acid-treated coal gangue into a muffle furnace, and calcining for 10 hours at 650 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 0.8 part of bacillus subtilis and 11.3 parts of furfural residue at normal temperature for 11 days to obtain the soil conditioner.
4) Dispersing 2 parts of phytic acid and the modified coal gangue powder prepared in the step 2) into water, adding 6 parts of potassium humate, 0.9 part of methyl methacrylate and the soil conditioner obtained in the step 3) to react for 1 hour at normal temperature, adding 0.7 part of sodium persulfate and 0.3 part of N, N-methylene bisacrylamide, carrying out cross-linking reaction for 4 hours in an ice water bath at the temperature of 5 ℃, and carrying out pressure granulation to prepare the saline-alkali soil conditioner.
Example 6
A saline-alkali soil treatment agent comprises, by mass, 33 parts of coal gangue powder, 44 parts of oxalic acid, 3 parts of phytic acid, 7 parts of potassium humate, 1 part of acrylic acid, 1 part of bacillus megaterium, 10.1 parts of corn straws, 0.8 part of potassium persulfate and 0.1 part of polyethyleneimine;
wherein the humate is derived from lignite.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground and processed, and then is sieved by a 200-mesh sieve to obtain the coal gangue powder.
2) And dissolving 33 parts of sieved coal gangue powder in oxalic acid, fully mixing, filtering, washing with deionized water for 5 times, and drying to obtain the acid-treated coal gangue. And putting the acid-treated coal gangue into a muffle furnace, and calcining for 15 hours at 700 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 1 part of bacillus megatherium and 10.1 parts of corn straw for 13 days at normal temperature to obtain the soil conditioner.
4) Dispersing 3 parts of phytic acid and modified coal gangue powder in water, adding 7 parts of potassium humate, 1 part of acrylic acid and the soil conditioner obtained in the step 3), reacting for 3 hours at normal temperature, adding 0.8 part of potassium persulfate and 0.1 part of polyethyleneimine, carrying out cross-linking reaction for 1 hour at 7 ℃ in an ice water bath, and carrying out pressure extrusion granulation to prepare the saline-alkali soil conditioner.
Example 7
A saline-alkali soil treatment agent comprises, by mass, 35 parts of coal gangue powder, 42 parts of tartaric acid, 4 parts of phytic acid, 7 parts of potassium humate, 1.2 parts of 2-acrylamido-2-methylpropanesulfonic acid, 0.7 part of Bacillus mucilaginosus, 9 parts of agricultural sulfur, 0.9 part of azobisisobutyronitrile and 0.2 part of N, N-methylene bisacrylamide;
wherein the humate is derived from coal slime.
The preparation process of the saline-alkali soil treatment agent comprises the following steps:
1) The coal gangue raw material is ground into powder and then is sieved by a 50-mesh sieve to obtain the coal gangue powder.
2) And dissolving 35 parts of sieved coal gangue powder in 42 parts of tartaric acid, fully mixing, filtering, washing with deionized water for 6 times, and drying to obtain the acid-treated coal gangue. And putting the acid-treated coal gangue into a muffle furnace, and calcining for 18h at 500 ℃ to obtain modified coal gangue powder.
3) Decomposing and activating 0.7 parts of bacillus mucilaginosus and 9 parts of agricultural sulfur at normal temperature for 16 days to obtain the soil conditioner.
4) Dispersing 4 parts of phytic acid and modified coal gangue powder in water, adding 7 parts of potassium humate, 1.2 parts of 2-acrylamido-2-methylpropanesulfonic acid and the soil conditioner obtained in the step 3), reacting for 1 hour at normal temperature, adding 0.9 part of azobisisoheptonitrile and 0.2 part of N, N-methylene bisacrylamide, carrying out crosslinking reaction for 4 hours at the temperature of 8 ℃ in ice water bath, and carrying out pressure granulation to prepare the soil conditioner for the saline-alkali soil.
The effect evaluation of the saline-alkali soil treatment agent prepared by the embodiment has the following result:
1. results of different examples on soil treatment
TABLE 1 results of soil treatment of saline and alkaline land according to different examples
As can be seen from the table 1, the saline-alkali soil treatment agent prepared by the invention can well improve the pH value of the saline-alkali soil, the organic matter content of the soil is increased from 1.1% to more than 11%, and the organic matter content of the soil can be obviously increased. In addition, the content of N element is increased from 130mg/kg to more than or equal to 221mg/kg, the content of P element is increased from 57mg/kg to more than or equal to 88mg/kg, and the content of K element is increased from 100mg/kg to more than or equal to 147mg/kg, which shows that the saline-alkali soil treatment agent prepared by the invention can well supplement nitrogen, phosphorus and potassium required by crop growth.
2. Water absorption Performance test
The method for testing the water absorption of the saline-alkali soil treatment agent comprises the following steps:
accurately weighing m 1 g saline-alkali soil treatment agent is put into a beaker, distilled water is added, the mixture is kept stand at room temperature until the mixture is balanced in swelling, and after excessive water on the surface is absorbed by filter paper, the mixture is accurately weighed as m 2 g. The swelling ratio SR is calculated as follows:
the swelling test results are shown in table 2.
TABLE 2 swelling test results
As can be seen from the table 2, the saline-alkali soil treatment agent has the water absorption rate as high as 30g/g, and the saline-alkali soil treatment agent has the water absorption rate of only 3g/g, which shows that the saline-alkali soil treatment agent prepared by the method has stronger water absorption, and can ensure that the saline-alkali soil has better water storage and retention performances.
3. Determination of trace elements in coal gangue
TABLE 3 determination of trace elements in coal gangue
From Table 3, it can be seen that the trace elements of iron, manganese, zinc, molybdenum, copper and boron in the coal gangue are all trace elements required by crops.
In conclusion, the saline-alkali soil treatment agent prepared by the invention can effectively solve the problem that crops cannot be planted in saline-alkali soil, improves the content of organic matters and trace elements in the saline-alkali soil, increases the content of carbon, phosphorus and potassium in the saline-alkali soil, has good water retention performance, has a crosslinking effect on the saline-alkali soil, and can reduce the consumption of water, soil and organic matters in the saline-alkali soil.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The saline-alkali soil treatment agent utilizing the waste resources is characterized by comprising the following components in parts by mass: 25 to 35 portions of coal gangue powder, 42 to 52 portions of organic acid, 2 to 4 portions of phytic acid, 6 to 9 portions of humate, 0.5 to 1.2 portions of hydrophilic monomer, 9.7 to 12.1 portions of soil conditioner, 0.7 to 1.0 portion of initiator and 0.1 to 0.3 portion of cross-linking agent.
2. The saline-alkali soil remediation agent utilizing waste resources as claimed in claim 1, wherein the organic acid is one or more of citric acid, malic acid, tartaric acid and oxalic acid.
3. The saline-alkali soil remediation agent using waste resources as claimed in claim 1, wherein the humate is derived from low-rank coal, fly ash, lignite or coal slurry.
4. The waste resource-utilizing saline-alkali soil remediation agent of claim 1, wherein the hydrophilic monomer is one of glycidyl methacrylate, methyl methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, acrylic acid, acrylamide, and acrylonitrile.
5. The saline-alkali soil treatment agent using waste resources as claimed in claim 1, wherein the soil improvement agent is one or more of microbial agents, straw, furfural residues and agricultural sulfur.
6. The saline-alkali soil treatment agent using waste resources as claimed in claim 5, wherein the microbial agent is one or more of Bacillus subtilis, bacillus megaterium, bacillus mucilaginosus and enterococcus faecalis.
7. The waste resource-utilizing saline-alkali soil amendment according to claim 1, wherein the initiator comprises azo compounds including azobisisobutyronitrile and azobisisoheptonitrile, and persulfate compounds including potassium persulfate and sodium persulfate.
8. The saline-alkali soil treatment agent using waste resources as claimed in claim 1, wherein the cross-linking agent is EDC/NHS mixture, N-methylenebisacrylamide, polyethyleneimine or 1, 4-butanediol diglycidyl ether.
9. The method for preparing a saline-alkali soil treatment agent by using waste resources as claimed in any one of claims 1 to 8, wherein the saline-alkali soil treatment agent is prepared by fully dissolving modified coal gangue powder and phytic acid, adding humate, a hydrophilic monomer and a soil conditioner to react for 1 to 5 hours at normal temperature, stirring at normal temperature, adding an initiator and a cross-linking agent to perform cross-linking reaction for 1 to 4 hours at 0 to 10 ℃, and performing pressure granulation.
10. The method for preparing the saline-alkali soil improvement agent by using the waste resources as claimed in claim 9, wherein the method for preparing the soil improvement agent comprises the following steps: decomposing and activating one or more of microbial inoculum, straw, furfural residue and agricultural sulfur for 5-20 days to prepare the soil conditioner.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077843A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院兰州化学物理研究所 | Nano composite water retention agent with fertilizer slow-released function and preparation method thereof |
| CN101235292A (en) * | 2008-02-29 | 2008-08-06 | 师进 | High activity biological water-retention saline alkali soil modifier and preparation method thereof |
| CN104371737A (en) * | 2014-09-17 | 2015-02-25 | 宁夏大学 | Typical cracking alkaline earth soil conditioner for planting medlar |
| CN104788265A (en) * | 2015-04-30 | 2015-07-22 | 山西省农业科学院农业环境与资源研究所 | Saline-alkali soil biological improved fertilizer based on high-sulfur gangue and preparation method thereof |
| CN106348469A (en) * | 2016-08-29 | 2017-01-25 | 山东胜伟园林科技有限公司 | Efficient salt resistance scale inhibitor and application thereof |
| CN106753417A (en) * | 2017-01-20 | 2017-05-31 | 上海鲲鹏环保科技有限公司 | Alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay and desulfurated plaster |
| CN107759392A (en) * | 2017-11-25 | 2018-03-06 | 横县生产力促进中心 | A kind of improvement soil property matches somebody with somebody fertile auxiliary material and its production method |
| CN108207503A (en) * | 2017-11-30 | 2018-06-29 | 潍坊友容实业有限公司 | The method that strand sandyization salt-soda soil plantation sand draws grass and improvement clay fertilizer situation |
| CN108300485A (en) * | 2018-03-13 | 2018-07-20 | 鲁东大学 | It is a kind of to be used to administer the soil conditioner in salt-soda soil and its preparation method and application |
| CN111040773A (en) * | 2019-12-19 | 2020-04-21 | 安徽瀑飞通讯科技有限公司 | Soil conditioner for improving saline-alkali soil and preparation method and application thereof |
| CN111085532A (en) * | 2019-12-20 | 2020-05-01 | 安徽理工大学 | Method for restoring heavy metals in soil by using high-sulfur coal gangue modified biochar |
| CN113265031A (en) * | 2021-05-28 | 2021-08-17 | 陕西科技大学 | Humic acid type insect-proof pheromone water-absorbent resin and preparation method thereof |
| CN113968763A (en) * | 2017-04-27 | 2022-01-25 | 陕西科技大学 | Humic acid porous solid fertilizer with ridging performance and preparation method and application thereof |
-
2022
- 2022-08-29 CN CN202211041472.2A patent/CN115340874A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077843A (en) * | 2006-05-26 | 2007-11-28 | 中国科学院兰州化学物理研究所 | Nano composite water retention agent with fertilizer slow-released function and preparation method thereof |
| CN101235292A (en) * | 2008-02-29 | 2008-08-06 | 师进 | High activity biological water-retention saline alkali soil modifier and preparation method thereof |
| CN104371737A (en) * | 2014-09-17 | 2015-02-25 | 宁夏大学 | Typical cracking alkaline earth soil conditioner for planting medlar |
| CN104788265A (en) * | 2015-04-30 | 2015-07-22 | 山西省农业科学院农业环境与资源研究所 | Saline-alkali soil biological improved fertilizer based on high-sulfur gangue and preparation method thereof |
| CN106348469A (en) * | 2016-08-29 | 2017-01-25 | 山东胜伟园林科技有限公司 | Efficient salt resistance scale inhibitor and application thereof |
| CN106753417A (en) * | 2017-01-20 | 2017-05-31 | 上海鲲鹏环保科技有限公司 | Alkaline land modifying agent and saline and alkali land improvement method based on spent bleaching clay and desulfurated plaster |
| CN113968763A (en) * | 2017-04-27 | 2022-01-25 | 陕西科技大学 | Humic acid porous solid fertilizer with ridging performance and preparation method and application thereof |
| CN107759392A (en) * | 2017-11-25 | 2018-03-06 | 横县生产力促进中心 | A kind of improvement soil property matches somebody with somebody fertile auxiliary material and its production method |
| CN108207503A (en) * | 2017-11-30 | 2018-06-29 | 潍坊友容实业有限公司 | The method that strand sandyization salt-soda soil plantation sand draws grass and improvement clay fertilizer situation |
| CN108300485A (en) * | 2018-03-13 | 2018-07-20 | 鲁东大学 | It is a kind of to be used to administer the soil conditioner in salt-soda soil and its preparation method and application |
| CN111040773A (en) * | 2019-12-19 | 2020-04-21 | 安徽瀑飞通讯科技有限公司 | Soil conditioner for improving saline-alkali soil and preparation method and application thereof |
| CN111085532A (en) * | 2019-12-20 | 2020-05-01 | 安徽理工大学 | Method for restoring heavy metals in soil by using high-sulfur coal gangue modified biochar |
| CN113265031A (en) * | 2021-05-28 | 2021-08-17 | 陕西科技大学 | Humic acid type insect-proof pheromone water-absorbent resin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 尹国勋: "《矿山环境保护》", vol. 1, 中国矿业大学出版社, pages: 154 * |
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