CN115010231B - Stabilizer of polyiron coagulant and application thereof - Google Patents
Stabilizer of polyiron coagulant and application thereof Download PDFInfo
- Publication number
- CN115010231B CN115010231B CN202210801974.4A CN202210801974A CN115010231B CN 115010231 B CN115010231 B CN 115010231B CN 202210801974 A CN202210801974 A CN 202210801974A CN 115010231 B CN115010231 B CN 115010231B
- Authority
- CN
- China
- Prior art keywords
- stabilizer
- polyiron
- coagulant
- lignosulfonate
- sodium
- Prior art date
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- 239000000701 coagulant Substances 0.000 title claims abstract description 51
- 239000003381 stabilizer Substances 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000008367 deionised water Substances 0.000 claims abstract description 26
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 26
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229920005646 polycarboxylate Polymers 0.000 claims abstract description 7
- 229940070710 valerate Drugs 0.000 claims abstract description 7
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- SZHQPBJEOCHCKM-UHFFFAOYSA-N 2-phosphonobutane-1,2,4-tricarboxylic acid Chemical class OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O SZHQPBJEOCHCKM-UHFFFAOYSA-N 0.000 claims abstract description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims description 18
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 6
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- -1 potassium 2-phosphonobutane-1, 2, 4-tricarboxylic acid Chemical compound 0.000 claims description 6
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000005695 Ammonium acetate Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 235000019257 ammonium acetate Nutrition 0.000 claims description 4
- 229940043376 ammonium acetate Drugs 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229940091250 magnesium supplement Drugs 0.000 claims description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 4
- 229920001444 polymaleic acid Polymers 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229960003975 potassium Drugs 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 4
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 4
- RTHGWTJOCVHZGK-UHFFFAOYSA-N 2-phosphonobutane-1,2,4-tricarboxylic acid;sodium Chemical compound [Na].OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O RTHGWTJOCVHZGK-UHFFFAOYSA-N 0.000 claims description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 235000011056 potassium acetate Nutrition 0.000 claims description 3
- OPCDHYPGIGFJGH-UHFFFAOYSA-M potassium;pentanoate Chemical compound [K+].CCCCC([O-])=O OPCDHYPGIGFJGH-UHFFFAOYSA-M 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- LHYPLJGBYPAQAK-UHFFFAOYSA-M sodium;pentanoate Chemical compound [Na+].CCCCC([O-])=O LHYPLJGBYPAQAK-UHFFFAOYSA-M 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229920005550 ammonium lignosulfonate Polymers 0.000 claims description 2
- FCGUHJIIJAZKRN-UHFFFAOYSA-N azane;2-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound N.OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O FCGUHJIIJAZKRN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 claims description 2
- 239000001354 calcium citrate Substances 0.000 claims description 2
- 229960004256 calcium citrate Drugs 0.000 claims description 2
- 229960002413 ferric citrate Drugs 0.000 claims description 2
- NPFOYSMITVOQOS-UHFFFAOYSA-K iron(III) citrate Chemical compound [Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NPFOYSMITVOQOS-UHFFFAOYSA-K 0.000 claims description 2
- 239000004337 magnesium citrate Substances 0.000 claims description 2
- 229960005336 magnesium citrate Drugs 0.000 claims description 2
- 235000002538 magnesium citrate Nutrition 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 2
- 239000001508 potassium citrate Substances 0.000 claims description 2
- 229960002635 potassium citrate Drugs 0.000 claims description 2
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims description 2
- 235000011082 potassium citrates Nutrition 0.000 claims description 2
- 229920005614 potassium polyacrylate Polymers 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 235000013337 tricalcium citrate Nutrition 0.000 claims description 2
- PLSARIKBYIPYPF-UHFFFAOYSA-H trimagnesium dicitrate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O PLSARIKBYIPYPF-UHFFFAOYSA-H 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 229910019142 PO4 Inorganic materials 0.000 abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 5
- 239000010452 phosphate Substances 0.000 abstract description 5
- 230000009920 chelation Effects 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 4
- 238000005063 solubilization Methods 0.000 abstract description 4
- 230000007928 solubilization Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract description 2
- 229910052816 inorganic phosphate Inorganic materials 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 36
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 18
- 238000010907 mechanical stirring Methods 0.000 description 18
- 238000003756 stirring Methods 0.000 description 17
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 9
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 9
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 9
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 7
- 229940032296 ferric chloride Drugs 0.000 description 7
- 229940044631 ferric chloride hexahydrate Drugs 0.000 description 7
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 7
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 102100036218 DNA replication complex GINS protein PSF2 Human genes 0.000 description 4
- 101000736065 Homo sapiens DNA replication complex GINS protein PSF2 Proteins 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 101100060007 Caenorhabditis elegans mig-22 gene Proteins 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 2
- 235000019799 monosodium phosphate Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 2
- PHIQPXBZDGYJOG-UHFFFAOYSA-N sodium silicate nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-][Si]([O-])=O PHIQPXBZDGYJOG-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- HKOFYHZIMHRMSJ-UHFFFAOYSA-K trichloroalumane nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Al+3].[Cl-].[Cl-].[Cl-] HKOFYHZIMHRMSJ-UHFFFAOYSA-K 0.000 description 2
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- 101100049641 Caenorhabditis elegans pfs-2 gene Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 101100269308 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PFS1 gene Proteins 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- AMVQGJHFDJVOOB-UHFFFAOYSA-H aluminium sulfate octadecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O AMVQGJHFDJVOOB-UHFFFAOYSA-H 0.000 description 1
- ZJOKNSFTHAWVKK-UHFFFAOYSA-K aluminum octadecanoate sulfate Chemical compound C(CCCCCCCCCCCCCCCCC)(=O)[O-].[Al+3].S(=O)(=O)([O-])[O-] ZJOKNSFTHAWVKK-UHFFFAOYSA-K 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910052935 jarosite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a stabilizer of a polyiron coagulant and application thereof, belonging to the technical field of industrial auxiliary agents. The invention comprises, by weight, 20-50% of lignosulfonate, 0-20% of acetate, 10-20% of modified polycarboxylate, 0-30% of citrate, 0-15% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt, 0-15% of 1, 3-triphosphonic valerate and 50-70% of deionized water. Through the compounding effect, the stabilizer can be endowed with higher chelation solubilization effect, and the formation and precipitation of iron insoluble substances in the polyiron coagulant can be effectively prevented. Compared with common inorganic phosphate stabilizers, the invention has the advantages of less dosage, better stabilizing effect, belongs to non-phosphate medicaments, and has more environment-friendly phosphorus with extremely low content. When the polymer-iron coagulant is used as a stabilizer, the polymer-iron coagulant can obtain very good stability through chelation solubilization and dispersion effects, and the shelf life of the polymer-iron coagulant can be greatly prolonged.
Description
Technical Field
The invention relates to the technical field related to industrial auxiliary agents, in particular to a stabilizer of a polyiron coagulant and application thereof.
Background
The fresh water amount of people in China only accounts for 1/4 of the average world level, and along with the development of industry, a large amount of water resources are polluted, so that the problem of water shortage is more serious, and the treatment of sewage is urgent.
Coagulant is one of the most common medicaments in the sewage treatment field, wherein the polyiron coagulant occupies an important position in the coagulant, but the coagulant has the problem of poor stability, a large amount of precipitates are usually generated after a product is subjected to a plurality of months, the use effect and the service life of the coagulant are seriously influenced, and a large amount of the polyiron coagulant with reduced performance and even failure influences the use effect and also causes certain economic loss.
In order to increase the stability of the iron-based coagulant, a stabilizer is often required to be added in industrial production, but the adding amount of the existing phosphate stabilizer is large and easily causes secondary pollution of water, the required amount of the phosphate stabilizer is also large, the environment is also influenced to a certain extent, and in addition, the adding of disodium hydrogen phosphate can improve the stability of the product to a certain extent, but the stability requirement of the product cannot be met. The development of an efficient (low) phosphorus-free polyiron coagulant stabilizer has important practical significance.
Disclosure of Invention
In order to solve the prior art problems, the invention provides a stabilizer of a polyiron coagulant, which comprises, by weight, 20-50% of lignosulfonate, 0-20% of acetate, 10-20% of modified polycarboxylate, 0-30% of citrate, 0-15% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt, 0-15% of 1, 3-triphosphonic valerate and 0-70% of deionized water.
Preferably or alternatively, the lignosulfonate is one or a combination of more of sodium lignosulfonate, potassium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, iron lignosulfonate, aluminum lignosulfonate and zinc lignosulfonate.
Preferably or alternatively, the acetate is one or a combination of more of sodium acetate, potassium acetate and ammonium acetate.
Preferably or alternatively, the modified polycarboxylate is one or more of sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, sodium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, potassium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, polymaleic anhydride, hydrolyzed polymaleic anhydride, potassium polymaleic acid, sodium polymaleic acid.
Preferably or alternatively, the citrate is one or more of sodium citrate, potassium citrate, ammonium citrate, calcium citrate, magnesium citrate, and ferric citrate.
Preferably or alternatively, the 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt is a combination of one or more of sodium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, potassium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, ammonium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, magnesium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, calcium 2-phosphonobutane-1, 2, 4-tricarboxylic acid.
Preferably, or alternatively, the first and second regions, the 1, 3-triphosphonic valerate is 1, 3-triphosphonic sodium valerate, 1, 3-triphosphonic potassium valerate a combination of one or more of ammonium 1, 3-triphosphonate, calcium 1, 3-triphosphonate, magnesium 1, 3-triphosphonate.
The invention also provides an application of the stabilizer based on the polyiron coagulant, which is characterized in that the stabilizer is applied to the preparation of the polyiron coagulant or used as a component of the polyiron coagulant.
The beneficial effects are that: the stabilizer of the polyferric coagulant provided by the invention has the advantages that the lignin sulfonate, acetate, citrate, 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt and 1, 3-triphosphonic valerate which are added in a compounding way contain a large number of carboxyl groups, hydroxyl groups and other groups, so that the stabilizer has a higher chelation solubilization effect, and the formation and precipitation of iron insoluble matters such as sodium jarosite, ferric hydroxide and the like in the polyferric coagulant can be effectively prevented. The modified polycarboxylate with the molecular weight of 1000-5000 adopted by the invention not only can provide a large number of carboxyl groups, hydroxyl groups and other groups, but also has a very good synergistic dispersion effect with lignin sulfonate, so that the formed iron insoluble substances are not easy to aggregate or agglomerate, and can be stably dispersed in a coagulant system. When the invention is used as the stabilizer of the polyiron coagulant, the polyiron coagulant can obtain very good stability through the chelation solubilization and dispersion effects, and the shelf life of the polyiron coagulant can be greatly prolonged. Compared with common inorganic phosphate medicaments, the invention has the advantages of less dosage, better stabilizing effect, extremely low phosphorus content and environmental protection, and belongs to non-phosphate medicaments.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
The invention is further illustrated below in conjunction with examples, examples of which are intended to illustrate the invention and are not to be construed as limiting the invention. The specific techniques and reaction conditions not specified in the examples may be carried out according to the techniques or conditions described in the literature in this field or the product specifications. Reagents, instruments or equipment not specifically mentioned in the manufacturer are commercially available.
Wherein, as the pH value of the aqueous solution of the polyiron coagulant product is acidic, the weak acid salts added by the stabilizer in each embodiment can generate corresponding weak acid through hydrolysis.
Example 1
A stabilizer FPW1 suitable for producing high-stability polyiron coagulant is black brown aqueous solution in appearance, and comprises the following components: 20% by mass of sodium lignin sulfonate, 8% by mass of sodium acetate, 10% by mass of polymaleic anhydride with a viscosity average molecular weight of about 2100, 5% by mass of 2-phosphonobutane-1, 2, 4-tricarboxylic acid and 57% by mass of deionized water.
Preparation of polymeric ferric sulfate PFS 1:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added, after the mixture is fully stirred and dissolved, 5.5mL of 30% hydrogen peroxide is added dropwise under stirring, after the mixture is reacted for 2 hours, the mixture is cured for 4 hours at normal temperature.
Preparation of polymeric ferric sulfate PFS1+:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added, after the mixture is fully stirred and dissolved, 1.5g of stabilizer FPW1 is added, 5.5mL of 30% hydrogen peroxide is dropwise added under the condition of stirring, and after the mixture is reacted for 2 hours, the mixture is cured for 4 hours at normal temperature.
Example 2
A stabilizer FPW2 suitable for producing high-stability polyiron coagulant is dark brown solid powder in appearance, and comprises the following components: 50% by mass of calcium lignosulfonate, 5% by mass of sodium polyacrylate with a viscosity average molecular weight of about 5000, 30% by mass of ammonium citrate and 15% by mass of sodium 2-phosphonobutane-1, 2, 4-tricarboxylic acid.
Preparation of polysiliconic ferric sulfate PFSS 1:
in a 250mL four-necked flask equipped with a mechanical stirring device, 7g of sodium silicate nonahydrate and 25mL of deionized water were added, then 2mL of concentrated sulfuric acid was added dropwise and stirred uniformly, then the pH was adjusted to 3.0 with sodium hydroxide, and the mixture was activated in a constant temperature water bath at 45℃for 2 hours to obtain a solution A.
Another 250mL four-neck flask equipped with a mechanical stirring device was taken, 7g of ferrous sulfate heptahydrate and 20mL of deionized water were added, then 0.5mL of concentrated sulfuric acid was added, stirring was uniform, then solution a was added, 5.5mL of 30% hydrogen peroxide was added dropwise under vigorous stirring, and the mixture was aged in a water bath at 40 ℃ for 3 hours.
Preparation of polysilicate ferric sulfate PFSS1+:
in a 250mL four-necked flask equipped with a mechanical stirring device, 7g of sodium silicate nonahydrate and 25mL of deionized water were added, then 2mL of concentrated sulfuric acid was added dropwise and stirred uniformly, then the pH was adjusted to 3.0 with sodium hydroxide, and the mixture was activated in a constant temperature water bath at 45℃for 2 hours to obtain a solution A.
Another 250mL four-neck flask equipped with a mechanical stirring device was taken, 7g of ferrous sulfate heptahydrate and 20mL of deionized water were added, then 0.5mL of concentrated sulfuric acid was added, after stirring uniformly, 0.9g of stabilizer FPW2 was added, then solution a was added, under vigorous stirring, 5.5mL of 30% hydrogen peroxide was added dropwise, and the mixture was aged in a 40 ℃ water bath for 3 hours.
Example 3
A stabilizer FPW3 suitable for producing high-stability polyiron coagulant is black brown aqueous solution in appearance, and comprises the following components: 22% of calcium lignosulfonate, 5% of potassium acetate, 15% of 1, 3-triphosphonic sodium valerate and 58% of deionized water.
Preparation of polymeric ferric chloride PFC 1:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferric chloride hexahydrate and 53g of deionized water were added, and after sufficiently stirring and dissolving, 2.65g of sodium carbonate was added and sufficiently stirred for reaction for 2 hours, the mixture was aged at constant temperature in a water bath at 50℃for 2 hours.
Preparation of polymeric ferric chloride PFC 1+:
in a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferric chloride hexahydrate and 53g of deionized water were added, and the mixture was sufficiently stirred and dissolved, then 2.65g of sodium carbonate and 1.2g of stabilizer FPW3 were added and the mixture was sufficiently stirred and reacted for 2 hours, and then the mixture was aged at constant temperature in a water bath at 50℃for 2 hours.
Example 4
A stabilizer FPW4 suitable for producing high-stability polyiron coagulant is dark brown solid powder in appearance, and comprises the following components: 50% of ammonium lignin sulfonate, 20% of ammonium acetate, 15% of ammonium citrate and 15% of 1, 3-triphosphonic potassium valerate.
Preparation of polyaluminum ferric chloride PCFC 1:
in a 250mL four-necked flask equipped with a mechanical stirring device, 32g of ferric chloride hexahydrate, 10g of aluminum chloride nonahydrate and 46g of deionized water were added, and the mixture was sufficiently stirred and dissolved, then 4g of sodium carbonate was added and the mixture was sufficiently stirred and reacted for 2 hours, and then the mixture was aged at constant temperature in a water bath at 40℃for 3 hours.
Preparation of polyaluminum ferric chloride PCFC 1+:
in a 250mL four-necked flask equipped with a mechanical stirring device, 32g of ferric chloride hexahydrate, 10g of aluminum chloride nonahydrate and 46g of deionized water were added, and the mixture was sufficiently stirred and dissolved, then 4g of sodium carbonate and 0.4g of stabilizer FPW4 were added and the mixture was sufficiently stirred and reacted for 2 hours, and then the mixture was aged at constant temperature in a water bath at 40℃for 3 hours.
Example 5
A stabilizer FPW5 suitable for producing high-stability polyiron coagulant is black brown aqueous solution in appearance, and comprises the following components: sodium lignin sulfonate 30%, acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer (AA/AMPS) with viscosity average molecular weight about 3500 8%, 2-phosphonobutane-1, 2, 4-tricarboxylic acid 12%, deionized water 50%.
Preparation of polymeric aluminum ferric sulfate PCFS 1:
to a 250mL four-necked flask equipped with a mechanical stirring device, 23g of ferrous sulfate heptahydrate, 32g of deionized water and 0.8mL of concentrated sulfuric acid are added, after the mixture is fully stirred and dissolved, 5.2mL of 30% hydrogen peroxide is added dropwise, after the reaction is carried out for 2 hours, 8g of aluminum sulfate octadecanoate is added, after the mixture is stirred for 1 hour, the mixture is cured for 8 hours at 30 ℃.
Preparation of polymeric aluminum ferric sulfate PCFS 1+:
to a 250mL four-necked flask equipped with a mechanical stirring device, 23g of ferrous sulfate heptahydrate, 32g of deionized water and 0.8mL of concentrated sulfuric acid were added, after sufficiently stirring and dissolving, 5.2mL of 30% hydrogen peroxide was added dropwise, after 2 hours of reaction, 8g of aluminum sulfate octadeca hydrate and 2g of stabilizer FPW5 were added, after stirring for 1 hour, the mixture was cured at 30℃for 8 hours.
Example 6
A stabilizer FPW6 suitable for producing high-stability polyiron coagulant is black brown aqueous solution in appearance, and comprises the following components: 25% by mass of calcium lignosulfonate, 2% by mass of ammonium acetate, 10% by mass of hydrolyzed polymaleic anhydride with a viscosity average molecular weight of about 4000, 5% by mass of citric acid, 5% by mass of 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 3% by mass of sodium 1, 3-triphosphonate valerate and 50% by mass of deionized water.
Preparation of polymeric ferric sulfate PFS 2:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added, after the mixture is fully stirred and dissolved, 5.5mL of 30% hydrogen peroxide is added dropwise under stirring, after the mixture is reacted for 2 hours, the mixture is cured for 4 hours at normal temperature.
Preparation of polymeric ferric sulfate PFS2+:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added, after the mixture is fully stirred and dissolved, 1.3g of stabilizer FPW6 is added, 5.5mL of 30% hydrogen peroxide is dropwise added under the condition of stirring, and after the mixture is reacted for 2 hours, the mixture is cured for 4 hours at normal temperature.
Preparation of polymeric ferric sulfate PFS2+P:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added, 1.3g of stabilizer sodium dihydrogen phosphate is added after full stirring and dissolution, 5.5mL of 30% hydrogen peroxide is added dropwise under stirring, and after reaction for 2 hours, the mixture is cured for 4 hours at normal temperature.
Example 7
A stabilizer FPW7 suitable for producing high-stability polyiron coagulant is black brown aqueous solution in appearance, and comprises the following components: 50% of calcium lignosulfonate and 50% of deionized water.
Preparation of polymeric ferric chloride PFC 2:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferric chloride hexahydrate and 53g of deionized water were added, and after sufficiently stirring and dissolving, 2.65g of sodium carbonate was added and sufficiently stirred for reaction for 2 hours, the mixture was aged at constant temperature in a water bath at 50℃for 2 hours.
Preparation of polymeric ferric chloride PFC 2+:
in a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferric chloride hexahydrate and 53g of deionized water were added, and the mixture was sufficiently stirred and dissolved, then 2.65g of sodium carbonate and 1.4g of stabilizer FPW7 were added, and after sufficiently stirring and reacting for 2 hours, the mixture was aged at constant temperature in a water bath at 50℃for 2 hours.
Preparation of polymeric ferric chloride PFC 2+P:
into a 250mL four-necked flask equipped with a mechanical stirring device, 27g of ferric chloride hexahydrate and 53g of deionized water were added, and the mixture was sufficiently stirred and dissolved, then 2.65g of sodium carbonate and 1.4g of stabilizer sodium dihydrogen phosphate were added, and after sufficiently stirring and reacting for 2 hours, the mixture was aged at constant temperature in a water bath at 50℃for 2 hours.
The stability of the polyiron-based coagulant products obtained in examples 1 to 7 was tested, and the stability was determined by measuring the content of water-insoluble matters in the polyiron-based coagulant, and the more the content of water-insoluble matters, the worse the stability was, and the specific test method was as follows (refer to measurement of water-insoluble matters in GB/T14591-2016):
weighing about 20g of sample, accurately weighing to 0.0002g, placing in a 250mL beaker, adding 80mL1+49 of dilute hydrochloric acid, stirring uniformly, keeping the temperature in a water bath kettle at 50-55 ℃ for 15 minutes, drying in an oven at 105-110 ℃ to constant weight, and weighing (the mass is m) 1 To 0.0002 g) was filtered with suction, and the residue was washed with water until the filtrate was free of chloride ions (checked with silver nitrate solution). Putting the crucible filter into a drying box for 105-11 daysOven drying at 0deg.C to constant weight and weighing (mass m 2 ) Accurate to 0.0002g.
Water insoluble content w= [ (m) 2 -m 1 )/m]X 100 (in mass percent)
The stability of the polyiron coagulants obtained in the different examples of the invention is shown in the following table:
TABLE 1 Water insoluble matter of the polyiron-based coagulant prepared in examples
As can be seen from the results in Table 1, the water insoluble materials of the polyiron coagulants added with the stabilizers FPW 1-7 are obviously lower than those of the products without the stabilizers; in the comparison of PFS2+ and PFS2+P in example 6 and PFC2+ and PFC2+P in example 7, it is evident that the iron-containing insoluble content is significantly lower when the stabilizer prepared in this example is added than when the conventional phosphate stabilizer is added. Therefore, the invention is applicable to the production of high-stability polyiron coagulants, and the prepared stabilizer has very good stabilizing effect on the polyiron coagulants.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Claims (8)
1. The stabilizer for the polyiron coagulant comprises, by weight, 20-50% of lignosulfonate, 2-20% of acetate, 5-10% of modified polycarboxylate, 5-30% of citrate, 5-15% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt, 3-15% of 1, 3-triphosphonic valerate and the balance deionized water; the modified polycarboxylate is selected from one or more of polymaleic anhydride, sodium polyacrylate, hydrolyzed polymaleic anhydride and acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer.
2. The stabilizer for the polyiron-based coagulant according to claim 1, wherein the lignosulfonate is one or a combination of more of sodium lignosulfonate, potassium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, iron lignosulfonate, aluminum lignosulfonate, and zinc lignosulfonate.
3. The stabilizer for the polyiron-based coagulant according to claim 1, wherein the acetate is one or a combination of sodium acetate, potassium acetate and ammonium acetate.
4. The stabilizer for the polyiron-based coagulant according to claim 1, wherein the modified polycarboxylate is one or more of sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, sodium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, potassium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, polymaleic anhydride, hydrolyzed polymaleic anhydride, potassium polymaleic acid, sodium polymaleic acid.
5. The stabilizer for the polyferric coagulant according to claim 1, wherein the citrate is one or a combination of more of sodium citrate, potassium citrate, ammonium citrate, calcium citrate, magnesium citrate and ferric citrate.
6. The stabilizer for polyiron coagulant according to claim 1, wherein the 2-phosphonobutane-1, 2, 4-tricarboxylic acid salt is one or a combination of more of sodium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, potassium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, ammonium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, magnesium 2-phosphonobutane-1, 2, 4-tricarboxylic acid, and calcium 2-phosphonobutane-1, 2, 4-tricarboxylic acid.
7. The stabilizer for a polyiron-based coagulant according to claim 1, wherein, the 1, 3-triphosphonic valerate is 1, 3-triphosphonic sodium valerate, 1, 3-triphosphonic potassium valerate a combination of one or more of ammonium 1, 3-triphosphonate, calcium 1, 3-triphosphonate, magnesium 1, 3-triphosphonate.
8. Use of a stabilizer based on a polyiron-based coagulant according to any one of claims 1 to 7, characterized in that it is applied in the preparation of a polyiron-based coagulant or as a component of a polyiron-based coagulant.
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| CN105645545A (en) * | 2016-03-23 | 2016-06-08 | 南京工业大学 | Preparation method and application of polysilicate iron salt coagulant |
| CN106830261A (en) * | 2017-03-07 | 2017-06-13 | 苏州清控环保科技有限公司 | A kind of heavy metal chelating agent and preparation method thereof |
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| JP2001314704A (en) * | 2000-05-11 | 2001-11-13 | Asahi Organic Chem Ind Co Ltd | Flocculant for water treatment |
| JP2004122117A (en) * | 2002-07-30 | 2004-04-22 | Sanyo Chem Ind Ltd | Polymer coagulant |
| CN105271490A (en) * | 2014-07-18 | 2016-01-27 | 重庆市昂多环境治理有限责任公司 | Wastewater treatment sodium lignin sulfonate type composite water purifier and preparation method |
| CN105384231A (en) * | 2015-12-22 | 2016-03-09 | 山东大学 | Polyaluminum ferric chloride-paper mill sludge based polymer composite flocculant and preparation method thereof |
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