CN113396927A - Easily degradable disinfectant and preparation method thereof - Google Patents
Easily degradable disinfectant and preparation method thereof Download PDFInfo
- Publication number
- CN113396927A CN113396927A CN202110623127.9A CN202110623127A CN113396927A CN 113396927 A CN113396927 A CN 113396927A CN 202110623127 A CN202110623127 A CN 202110623127A CN 113396927 A CN113396927 A CN 113396927A
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- China
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- disinfectant
- active
- calcium hypochlorite
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 55
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims abstract description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002023 wood Substances 0.000 claims abstract description 45
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 43
- 150000002505 iron Chemical class 0.000 claims abstract description 33
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 claims abstract description 33
- 239000012425 OXONE® Substances 0.000 claims abstract description 27
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 16
- 230000000996 additive effect Effects 0.000 claims abstract description 16
- VZKGOPXJBQTFRY-UHFFFAOYSA-N calcium;sodium;trihypochlorite Chemical compound [Na+].[Ca+2].Cl[O-].Cl[O-].Cl[O-] VZKGOPXJBQTFRY-UHFFFAOYSA-N 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000011812 mixed powder Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 38
- -1 phosphoric acid compound Chemical class 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 24
- 239000004917 carbon fiber Substances 0.000 claims description 21
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 20
- 239000002202 Polyethylene glycol Substances 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 17
- 229920001223 polyethylene glycol Polymers 0.000 claims description 17
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 16
- 239000001488 sodium phosphate Substances 0.000 claims description 11
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 11
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 10
- 229910000396 dipotassium phosphate Inorganic materials 0.000 claims description 10
- 235000019797 dipotassium phosphate Nutrition 0.000 claims description 10
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 10
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 10
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 10
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 235000011008 sodium phosphates Nutrition 0.000 claims description 6
- 238000009388 chemical precipitation Methods 0.000 claims description 5
- 239000011790 ferrous sulphate Substances 0.000 claims description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 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 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 87
- 230000001954 sterilising effect Effects 0.000 abstract description 42
- 230000015556 catabolic process Effects 0.000 abstract description 15
- 238000006731 degradation reaction Methods 0.000 abstract description 15
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 description 38
- 229910052801 chlorine Inorganic materials 0.000 description 38
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 37
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 28
- 238000006243 chemical reaction Methods 0.000 description 27
- 229910001448 ferrous ion Inorganic materials 0.000 description 25
- 230000000694 effects Effects 0.000 description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 150000003254 radicals Chemical class 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 16
- 238000000354 decomposition reaction Methods 0.000 description 15
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 description 11
- 229910001447 ferric ion Inorganic materials 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 10
- 230000001699 photocatalysis Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 238000007146 photocatalysis Methods 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 230000009182 swimming Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229910001414 potassium ion Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 4
- 230000000536 complexating effect Effects 0.000 description 4
- HJKYXKSLRZKNSI-UHFFFAOYSA-I pentapotassium;hydrogen sulfate;oxido sulfate;sulfuric acid Chemical compound [K+].[K+].[K+].[K+].[K+].OS([O-])(=O)=O.[O-]S([O-])(=O)=O.OS(=O)(=O)O[O-].OS(=O)(=O)O[O-] HJKYXKSLRZKNSI-UHFFFAOYSA-I 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010668 complexation reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 159000000014 iron salts Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 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 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 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
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
Abstract
The invention belongs to the technical field of disinfection, and particularly relates to a disinfectantIn particular relates to an easily degradable disinfectant and a preparation method thereof, wherein the disinfectant comprises the following components in parts by weight: 10-25 parts of RNx(OH)y(COOH)z40-55 parts of sodium calcium hypochlorite, 10-15 parts of diatomite, 15-20 parts of potassium peroxymonosulfate, 6-10 parts of wood activated carbon fiber, 2-10 parts of an active additive and 8-15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the method comprises the following steps: dissolving the active auxiliary agent, and adding the wood carbon active fiber to prepare mixed powder; adding sodium-method calcium hypochlorite into the mixed powder, heating and stirring to prepare composite powder; RN (relay node)x(OH)y(COOH)zAdding the mixture into the composite powder, standing, and adding potassium peroxymonosulfate to prepare hybrid powder; adding iron salt into the hybrid powder, and then adding diatomite to prepare a disinfectant; the obtained disinfectant can be used for stably disinfecting and sterilizing, has no residue after degradation, and is environment-friendly.
Description
Technical Field
The invention belongs to the technical field of disinfection, and particularly relates to an easily degradable disinfectant and a preparation method thereof.
Background
The disinfection of the swimming pool generally adopts a chemical agent, ultraviolet rays, ozone or metal ions disinfection mode, wherein the chemical agent disinfection has the defects of toxic hazard of the disinfection agent to human bodies, narrow range of disinfection objects, difficult treatment after disinfection and the like;
the ultraviolet disinfection has the defects that a certain water flow thickness must be kept for the disinfected swimming pool, and the maintenance cost of the disinfected equipment is high;
ozone disinfection has the defects of high power consumption of equipment, damage to human bodies caused by excessive use, poor treatment effect of ozone on algae and red line worms and need of synergistic reaction of chlorine series medicaments;
metal ion sterilization has the disadvantage of high sterilization cost.
Therefore, at present, the disinfection is carried out by using chemical agent disinfection, ultraviolet disinfection or ozone disinfection singly or in combination, but aiming at the agents adopted by the chemical agent disinfection and the ozone disinfection, because a large amount of organic auxiliary agents are added, the disinfectant is convenient to diffuse, and the disinfectant is stably existed by adding the stabilizing agent, the conventional organic auxiliary agents and the stabilizing agent are extremely difficult to degrade, so that the human body safety is considered, the water change of the swimming pool is required to be carried out twice or even three times after the disinfection is generally finished, and a large amount of waste water of the swimming pool is caused.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a easily degradable disinfectant and a method for preparing the same, which overcome the above problems or at least partially solve the above problems.
The embodiment of the invention provides an easily degradable disinfectant, which comprises the following components in parts by weight: 10-25 parts of RNx(OH)y(COOH)z40-55 parts of sodium calcium hypochlorite, 10-15 parts of diatomite, 15-20 parts of potassium peroxymonosulfate, 6-10 parts of wood activated carbon fiber, 2-10 parts of an active additive and 8-15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl.
Optionally, the active assistant comprises 2-10 parts by weight of loaded Bi2O3Catalyst, 15-20 parts of polyethylene glycol and 5-10 parts of phosphoric acid compound.
Further, the load Bi2O3The catalyst adopts carbon fiber as a carrier to form supported Bi by a chemical precipitation method2O3A catalyst.
Optionally, the phosphate compound is at least one of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate.
Further, the phosphoric acid compound is a mixture of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate in a weight ratio of 3: 1.
Optionally, the ferric salt is prepared by mixing ferric sulfate and ferrous sulfate in a weight ratio of 1: 1.
Optionally, the RNx(OH)y(COOH)zSelecting RN0(OH)1(COOH)2、RN2(OH)0(COOH)4、RN0(OH)2(COOH)2、RN0(OH)1(COOH)3Wherein R is an alkyl group.
Further, the RNx(OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)1(COOH)2And RN2(OH)0(COOH)4Wherein R is an alkyl group.
Based on the same inventive concept, the embodiment of the invention also provides a preparation method of the easily degradable disinfectant, which comprises the following steps:
dissolving the active auxiliary agent in water, adding the wood carbon active fiber, stirring for 10-15min, standing for layering, centrifuging, stirring again, and drying to obtain mixed powder;
adding sodium-method calcium hypochlorite into the mixed powder, heating and stirring to obtain composite powder;
RN (relay node)x(OH)y(COOH)zAdding the mixture into the composite powder, standing, adding potassium peroxymonosulfate, and stirring uniformly to obtain hybrid powder;
and adding iron salt into the obtained hybrid powder, uniformly stirring, adding diatomite, stirring for dispersing, and drying to obtain the disinfectant.
Optionally, the temperature is raised to 28-32 ℃ at a speed of 1-3 ℃/s.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the easily degradable disinfectant provided by the embodiment of the invention comprises the following components in parts by weight: 10-25 parts of RNx(OH)y(COOH)z40-55 parts of sodium calcium hypochlorite, 10-15 parts of diatomite, 15-20 parts of potassium peroxymonosulfate, 6-10 parts of wood activated carbon fiber, 2-10 parts of an active additive and 8-15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the wood activated carbon fibers are adopted to adsorb the active auxiliary agent, the active ingredients in the active auxiliary agent are utilized to promote calcium hypochlorite to generate a large amount of effective chlorine ingredients, then active oxygen and various compound free radical ingredients in the potassium peroxymonosulfate dissolving process are used for disinfection and sterilization, single hydroxyl free radical of the calcium hypochlorite and the active auxiliary agent is supplemented, compound sterilization is carried out, and meanwhile iron salt and RN are used for carrying out composite sterilizationx(OH)y(COOH)zComplex reaction of Fe in iron salts2+Reason RNx(OH)y(COOH)zThe calcium hypochlorite is slowly released, so that the sterilization characteristic of iron ions is prolonged, and then the effective chlorine decomposed by the calcium hypochlorite can stably exist in the loose pore diameter through the loose structure of the diatomite, the later rapid reduction of the effective chlorine component is prevented, meanwhile, the diatomite can jointly act with a trace amount of wood activated carbon fibers, the wood activated carbon fibers are embedded into the loose pores of the diatomite and are adsorbed with the active assistant, so that the active assistant can stably exist and release active substances, and the calcium hypochlorite is promoted to generate a large amount of active substancesThe active chlorine component can adsorb partial impurities while adsorbing the reaction medicament due to the adoption of the diatomite and the wood active carbon fiber, and can be fully degraded after the use without affecting the environment due to the fact that the diatomite and the wood active carbon fiber are easily degradable substances after the adsorption is completed.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
FIG. 1 is a schematic composition of the disinfectant of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying a relative importance or order.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
according to a typical embodiment of the present invention, there is provided a readily degradable disinfectant, comprising by weight: 10-25 parts of RNx(OH)y(COOH)z40-55 parts of sodium calcium hypochlorite, 10-15 parts of diatomite, 15-20 parts of potassium peroxymonosulfate, 6-10 parts of wood activated carbon fiber, 2-10 parts of an active additive and 8-15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl.
RNx(OH)y(COOH)zThe effect of (a) is to act as a slow release agent, relieving the consumption of ferrous ions in ferric salts, and simultaneously due to RNx(OH)y(COOH)zRN in (1)2(OH)0(COOH)4Has a stability constant greater than that of ferrous ions, so that according to the reaction equilibrium principle, when ferrous ions react with active oxygen and strong oxidizing radicals generated by potassium peroxymonosulfate, ferric ions are generated, and the ferric ions react with RN2(OH)0(COOH)4The exchange reaction of the complexed ferrous ions is strengthened, so that the complexed ferrous ions are released, the reaction of potassium peroxymonosulfate is accelerated, meanwhile, the active auxiliary agent utilizes electrons and free radicals generated by photocatalysis to further accelerate the exchange reaction of ferric ions and the complexed ferrous ions, thereby quickly consuming and degrading ferric salts, controlling RNx(OH)y(COOH)2The reason for 10-25 parts by weight is that RN is selected according to the content of iron salt and the coordination coefficient and the consumption of iron salt componentsx(OH)y(COOH)zIn proportion to iron saltWhen the ratio of the reactant to the catalyst is 1: 1-3, the reaction speed of the complex reaction is accelerated; when the weight part is too large, due to the addition of RNx(OH)y(COOH)zToo much, resulting in faster complexation, but residual RNsx(OH)y(COOH)zWill pollute the water, lead to the need to repeat many times the swimming pool and get rid of, a large amount of RN simultaneouslyx(OH)y(COOH)zThe added iron salt can not release ferrous ions to participate in the sterilization process at the first time, but preferentially participate in the complex reaction, so that the early-stage sterilization function is reduced, and the function of the disinfectant is influenced; when the weight portion is too small, a large amount of ferrous ions are consumed by active oxygen due to the supplement of the iron ion complexing reaction, so that the process reaction of the ferrous ions participating in the disinfection and sterilization cannot be realized.
Sodium-method calcium hypochlorite is used as a main chemical disinfectant, effective chlorine is obtained by decomposing the sodium-method calcium hypochlorite, meanwhile, decomposed chloride ions are subjected to non-radical reaction through potassium hydrogen peroxymonosulfate to obtain chlorine and hypochlorous acid, and potassium ions and sulfate ions which are intermediate products in the process can regulate and control RNx(OH)y(COOH)zRN in (1)0(OH)1(COOH)2And RN2(OH)0(COOH)4Thereby controlling the rate of complexation of ferrous and ferric ions, and thus enabling the modulation of RNx(OH)y(COOH)zThe reaction degree with ferric salt can achieve the purpose of rapid degradation; the reason for controlling the weight portion of the calcium hypochlorite to be 40-55 portions is that the calcium hypochlorite is not suitable to be excessive, so that excessive calcium carbonate is generated by decomposition to block diatomite or form precipitates in water, so that granular precipitates are formed in the water of the swimming pool, and the calcium hypochlorite can release sufficient effective chlorine within the weight portion range and avoid generating excessive chlorine components to pollute the water body; when the weight part is too large, calcium ion components are separated out in the process of generating effective chlorine by decomposing calcium hypochlorite, and excessive calcium carbonate is separated out due to partial carbon dioxide dissolved in the swimming pool, so that turbid sediment appears in the swimming pool, and excessive hypochlorous is generatedCalcium carbonate is easy to generate harmful chlorine and is easy to pollute water components; when the weight is too small, the effective chlorine component generated by calcium hypochlorite is insufficient, so that the disinfection and sterilization effect is not obvious, and simultaneously, the RN is partially regulated and controlled by the calcium hypochloritex(OH)y(COOH)zRN in (1)0(OH)1(COOH)2And RN2(OH)0(COOH)4When the amount of chlorine ions generated by decomposition in calcium hypochlorite is insufficient, RNx(OH)y(COOH)zRN in (1)0(OH)1(COOH)2And RN2(OH)0(COOH)4Will be out of control, leading to RNx(OH)y(COOH)zThe fast decomposition makes the ferrous ion and ferric ion release fast, can't realize the slow release purpose, influences the subsequent decomposition degradation stage.
The diatomite is a porous loose compound formed by depositing and mineralizing diatom remains, the main component of the diatomite is silicon dioxide, and the diatomite also comprises aluminum oxide, ferric oxide, calcium oxide, magnesium oxide, phosphorus pentoxide and other organic matters, so that the diatomite contains a large number of loose holes and adsorption units, the adsorption units can adsorb the effective chlorine component of calcium hypochlorite to prevent the effective chlorine component from losing due to quick release of the effective chlorine component, meanwhile, trace calcium carbonate generated in the decomposition process of the calcium hypochlorite can be deposited on the loose hole structure to change the internal gaps of the diatomite, so that the wood activated carbon fibers can be fixed, and the active component contained in the active auxiliary agent can be locked in the gaps to accelerate the calcium hypochlorite to generate the effective chlorine component; the reason for controlling the weight part of the diatomite to be 10-15 parts is that the diatomite in the current weight part can fully absorb various substances in the reaction, and meanwhile, a proper amount of metal components in the diatomite can be slightly dissolved in water to participate in the sterilization and disinfection process; when the weight part is too large, the diatomite adsorbs a large amount of effective chlorine components generated by calcium hypochlorite, and simultaneously, due to the large amount of adsorption of the diatomite, the active auxiliary components adsorbed on the diatomite cannot be smoothly released, so that the effective disinfection and sterilization in the early stage of disinfection and sterilization cannot be released, and the complete disinfection and sterilization process cannot be realized; when the weight part is too small, the diatomite can not successfully adsorb the effective chlorine component of the calcium hypochlorite and can not adsorb the wood active carbon fiber, so that the effective chlorine component is greatly consumed in the early period, and the effective component of the active additive in the wood active carbon fiber can not be slowly released and is greatly consumed in the early period, thereby influencing the consumption of other components, and being incapable of achieving disinfection and sterilization and fully consuming other components.
The potassium peroxymonosulfate is used as an auxiliary agent, active oxygen is generated by hydrolysis of the potassium peroxymonosulfate, various high-energy and high-activity micromolecule free radicals, nascent atomic oxygen, oxygen radicals, hydroxyl free radicals, sulfuric acid free radicals and other active ingredients are generated by a chain reaction through a high-energy activating agent, so that the potassium peroxymonosulfate becomes a high-efficiency oxidation disinfectant, and can oxidize and decompose organic pollutants which cannot be oxidized by the hydroxyl free radicals due to the existence of other free radicals except the hydroxyl free radicals; the purpose of controlling the weight part of potassium monopersulfate to be 15 to 20 parts is that potassium monopersulfate is capable of releasing a sufficient amount of plural complex radicals in the case of the weight part, and that an effective ingredient such as supported Bi in the coagent in the case of the weight part2O3The catalyst can perform photocatalytic reaction under the irradiation of ultraviolet rays, generated hydroxyl free radicals can perform combined action with various compound free radicals for oxidation sterilization, and a proper amount of potassium hydrogen peroxymonosulfate can stimulate the decomposition of sodium-method calcium hypochlorite aiming at the sodium-method calcium hypochlorite added with sodium hydroxide, so that the efficiency of generating effective chlorine components by the calcium hypochlorite can be further improved, and the degradation of the calcium hypochlorite is ensured; when the weight portion is too large, due to the fact that a large number of free radicals are generated by hydrolysis of potassium monopersulfate, ferrous iron in iron salt can be preferentially oxidized by the free radicals, so that the ferrous iron cannot participate in the disinfection and sterilization process, the generation of ferric iron is increased, and furthermore, a large number of free radicals can destroy RNx(OH)y(COOH)zThe components (A) are quickly decomposed, so that trivalent iron ions cannot participate in a complexing reaction, exist in a water body and cannot be degraded; when the weight isWhen the part is too small, because potassium hydrogen peroxymonosulfate can generate a plurality of complex free radicals by hydrolysis, when the complex free radicals are not enough, the Bi loaded by the active auxiliary agent is used2O3Hydroxyl free radicals generated by photocatalysis of the catalyst cannot treat all types of toxic and harmful organic pollutants, so that the disinfection and sterilization effects are not obvious.
The wood activated carbon fiber is used as a carrier and a slow release body, the components of the active assistant are loaded on the wood activated carbon fiber, and the components of the active assistant cannot be fixed due to the loose void structure of the diatomite, so the wood activated carbon fiber is adopted to fix the components of the active assistant; the aim of controlling the weight part of the wood activated carbon fiber to be 6-10 parts is that the wood activated carbon fiber and the diatomite can form a composite adsorption and fixation composition with the weight ratio of 1-2.5: 1, and partial wood activated carbon fiber which is not completely adsorbed can be used as a slow release carrier in the loose gap of the diatomite to slowly release the effective chlorine component of calcium hypochlorite; when the weight part is too large, the active auxiliary agent is firmly adsorbed due to the strong adsorption effect of the wood active carbon fiber, but the components generated by catalysis and decomposed components are adsorbed, so that the slow release stage cannot be implemented, and the disinfection and sterilization effects are influenced; when the weight part is too small, part of the active auxiliary agent cannot be adsorbed by a small amount of wood active carbon fibers, so that the active auxiliary agent is lost, cannot be treated in a water body, and cannot be degraded.
The active assistant has the functions of acting as an active activation and accelerating agent in the whole disinfection and sterilization process, a large amount of electrons and hydroxyl free radicals can be provided by utilizing the photocatalysis process of the active assistant, and meanwhile, calcium carbonate in the decomposition process of calcium hypochlorite can be prevented from being rapidly formed and then agglomerated into particles to influence a water body; the aim of controlling the weight part of the active auxiliary agent to be 2-10 parts is that under the weight part, the active auxiliary agent can be fully adsorbed by the wood active carbon fiber, thereby realizing the slow release in the reaction stages of calcium hypochlorite decomposition and potassium hydrogen peroxymonosulfate, promoting the generation of the disinfection and sterilization active substances of the active auxiliary agent and the wood active carbon fiber, and carrying out the treatment on iron salt and RNx(OH)y(COOH)zThe combined action produces a certain regulation and control effect; when the weight portion is too large, a large amount of the active auxiliary agent can remain in the water body after not being properly consumed because the active auxiliary agent is partially consumed in the participation stage, so that the purpose of degradation cannot be achieved; when the weight part is too small, the reaction of calcium hypochlorite or potassium peroxymonosulfate cannot be promoted any more due to excessive consumption of the coagent, and photocatalytic electrons and free radicals cannot participate in the control of iron salts and RNx(OH)y(COOH)zThe combined action causes great difference before and after disinfection and sterilization, and influences the disinfection and sterilization effect.
The iron salt acts as a disinfectant by using the oxidation stage of ferrous ions, ferric ions as a regulator, and RNx(OH)y(COOH)zSynergistic reaction, thereby controlling the disinfection progress; the weight part of the iron salt is controlled to be 8-15 parts so that the iron salt can react with RN at the weight partx(OH)y(COOH)zThe catalyst is matched with the catalyst in parts by weight, and can be matched with the catalytic process of an active assistant, so that the purpose of degradation is realized; when the weight part is too large, ferrous iron in the ferric salt cannot be sufficiently reacted with RNx(OH)y(COOH)zReaction, and excessive ferric iron content can influence the water body and can not achieve the purpose of full degradation; when the weight fraction is too small, the divalent iron in the iron salt is RNx(OH)y(COOH)zThe complex is completely complexed, and the water can not enter water body for disinfection and sterilization, so that the complex can not be disinfected and sterilized with other disinfectants in a synergic manner, and the disinfection and sterilization are not thorough.
The technical problem that the disinfectant is easy to degrade and can be stably disinfected is solved by selecting the chemical components and the parts by weight of the chemical components, and the technical obstacle to be overcome is that the reaction process of the disinfectant is disordered because the carrier is added into the conventional disinfectant by only using the easily degradable carrier and the characteristics of the carrier cannot cooperate with the reaction of a plurality of disinfectants.
As an alternative embodiment, the active assistant comprises 2 to 10 parts by weight of the supported Bi2O3Catalyst, 15-20 parts of polyethylene glycol and 5-10 parts of phosphoric acid compound; the load Bi2O3The catalyst adopts carbon fiber as a carrier to form supported Bi by a chemical precipitation method2O3A catalyst.
2-10 parts by weight of loaded Bi2O3The catalyst is used as a photocatalysis reaction body, and a loaded Bi formed by using carbon fiber as a carrier and using a chemical precipitation method is used in a disinfection stage of the swimming pool2O3Catalyst, supported Bi produced by chemical precipitation process due to high adsorption characteristics of carbon fibers2O3Catalyst to thereby convert Bi2O3The catalyst is fully fixed and deposited on the surface of the carbon fiber, so that the photocatalysis stage can be stably carried out, and Bi is loaded2O3The catalyst can provide a large amount of electrons and hydroxyl free radicals in a photocatalysis stage, the electrons can intervene in the stage of calcium hypochlorite decomposition reaction to generate effective chlorine, the calcium hypochlorite reaction is accelerated, the hydrolysis reaction stage of potassium hydrogen peroxymonosulfate can be accelerated, and further electrons can enter into iron salt and RNx(OH)y(COOH)zThe combined action stage of (1) quickening the reaction of ferric ions and complexed ferrous ions and realizing the quick slow release of the ferrous ions; an adverse effect of this excessively large volume fraction is that the large amount of hydroxyl radicals produced in the catalytic stage can affect the iron salts and RNx(OH)y(COOH)zResult in RNx(OH)y(COOH)zThe fast decomposition of the ferric salt leads to that the bivalent iron ions in the ferric salt can not be fast complexed after being converted into the trivalent iron ions, and the trivalent iron ions can not be degraded and adsorbed when entering the water body.
The polyethylene glycol with the weight part of 15-20 serves as a disperser and a stabilizer to form the loaded Bi2O3The catalyst can be quickly diffused to the wood active carbon fiber, and the supported Bi on the wood active carbon fiber is added due to the stable characteristic of the polyethylene glycol2O3The catalyst is fixed on the surface or inside of the activated carbon fiber by utilizing the polar bond of the catalyst, thereby leading the loaded Bi2O3The photocatalysis stage of the catalyst is stably carried out; when the weight part is too large, although polyethylene glycol is very largeLow toxicity, but a large amount of polyethylene glycol cannot react, and under the action of multiple complex free radicals, the polyethylene glycol is easy to aggregate in the diatomite to form a high-concentration hazard; when the weight part is too small, Bi is loaded2O3The catalyst can not be diffused and fixed in time in or on the surface of the wood active carbon fiber, so that part of the supported Bi2O3Catalyst loss, which affects the photocatalyst stage, does not generate enough electrons and hydroxyl radicals.
The phosphoric acid compound with the weight portion of 5-10 portions has the effects that the sodium phosphate compound can be utilized to ensure that calcium carbonate generated by the reaction of calcium hypochlorite and carbonate in a water body in the decomposition process is slowly crystallized, and phosphate ions can be matched with the diffusion effect of polyethylene glycol to improve the permeability of the water body, thereby being beneficial to loading Bi2O3Carrying out photocatalytic reaction on the catalyst; when the weight portion is too large, calcium carbonate crystallization is further inhibited slowly, so that calcium ions generated by calcium hypochlorite decomposition are inhibited, effective chlorine components are insufficient, and the disinfection and sterilization effects are influenced; when the weight part is too small, the phosphoric acid compound can not block the generation of calcium carbonate crystals, so the calcium carbonate crystals are separated out of the water body to cause turbid pollution of the water body, and the permeability of the water body is further reduced due to the lack of phosphoric acid to influence the loading of Bi2O3Photocatalytic efficacy of the catalyst.
2-10 parts by weight of loaded Bi2O3The principle of the synergistic effect of the catalyst, 15-20 parts of polyethylene glycol and 5-10 parts of phosphoric acid compound (namely 1+1+1 > 3) is as follows:
loaded with Bi2O3The catalyst utilizes the diffusion and fixation performance of polyethylene glycol to load Bi2O3The catalyst can enter the wood active carbon fiber and is fixed in the wood active carbon fiber or on the surface of the wood active carbon fiber through the polar bond of the polyethylene glycol, and the phosphate compound can be dispersed in the water body by utilizing the diffusion effect of the polyethylene glycol to block the growth of calcium carbonate crystals generated by the decomposition of calcium hypochlorite, thereby improving the permeability of the water body and further enabling the loaded Bi to be supported2O3The photocatalysis stage of the catalyst can be smoothly carried out, and the product isSufficient electrons and hydroxyl radicals are generated.
As an alternative embodiment, the phosphoric acid compound is a mixture of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate in a weight ratio of 3: 1;
the sodium phosphate, the potassium dihydrogen phosphate and the potassium hydrogen phosphate in the weight ratio of 3: 1 have the effects of relieving the formation of calcium carbonate crystals by utilizing the characteristics of the sodium phosphate, and then the potassium ions in the potassium dihydrogen phosphate and the potassium hydrogen phosphate can relieve the quick release of potassium hydrogen monosulfate, so that the hydrolysis release of the potassium hydrogen monosulfate can be adjusted; when the weight ratio is too large, the adverse effect is that potassium ions are introduced too much, so that the content of potassium ions in the water body is too large, the decomposition rate of potassium peroxymonosulfate is slowed down, and the final disinfection and sterilization effect is affected; when the weight ratio is too low, the adverse effect is that the sodium phosphate cannot sufficiently relieve the formation of calcium carbonate crystals, so that the water permeability is low, and the Bi load is influenced2O3Catalytic effectiveness of the catalyst.
As an optional implementation mode, the ferric salt is prepared by mixing ferric sulfate and ferrous sulfate in a weight ratio of 1: 1; ferric sulfate and ferrous sulfate are mixed according to the weight ratio of 1: 1, so that the proportion of ferrous ions to ferric ions after complexing can be maintained to be 1: 2, and the ferrous sulfate can be further mixed with RNx(OH)y(COOH)zThe combined action stage can ensure that ferrous ions are fully replaced, and ferric ions form a complex, so that the aim of full degradation is fulfilled; when the weight ratio is too large, the content of ferric ions is too high, and unstable colloid is easily formed to separate out solution, so that the permeability of the water body is influenced and the water body is polluted; when the weight ratio is too small, ferrous ions cannot be fully exchanged from the complexing state, so that the iron ions are disinfected too fast, and the disinfection and sterilization effects are not obvious.
As an alternative embodiment, the RNx(OH)y(COOH)zSelecting RN0(OH)1(COOH)2、RN2(OH)0(COOH)4、RN0(OH)2(COOH)2、RN0(OH)1(COOH)3At least one of; the RNx(OH)y(COOH)zIs RN in a weight ratio of 5: 2: 10(OH)1(COOH)2、RN2(OH)0(COOH)4、RN0(OH)1(COOH)2And RN2(OH)0(COOH)4Wherein R is alkyl;
using RN in a weight ratio of 5: 20(OH)1(COOH)2And RN2(OH)0(COOH)4The mixture of (1) can fully react and complex with ferrous ions in ferric salt, and simultaneously, ferric ions and the complexed ferrous ions are subjected to ion exchange reaction, so that the ferrous ions can react in a water body for a long time, and the slow release of the ferrous ions is realized; when the weight ratio is too large, the mixture is easy to completely complex ferrous ions, so that the later-stage ion exchange reaction is delayed, the disinfection and sterilization effects are not obvious, and meanwhile, the mixture is too much and is easy to pollute a water body, and cannot be completely complexed with ferric ions to be removed, so that the purpose of complete degradation is realized; when the weight ratio is too small, the mixture can not completely complex the ferrous ions, and the residual ferrous ions participate in the early disinfection and sterilization process, so that the ferrous ions exchanged in the later stage can not cooperate with other disinfection and sterilization compositions to react, and the disinfection and sterilization are not thorough.
According to another exemplary embodiment of the present invention, there is provided a method for preparing a readily degradable disinfectant, the method comprising:
dissolving the active auxiliary agent in water, adding the wood carbon active fiber, stirring for 10-15min, standing for layering, centrifuging, stirring again, and drying to obtain mixed powder;
adding sodium-method calcium hypochlorite into the mixed powder, heating and stirring to obtain composite powder;
RN (relay node)x(OH)y(COOH)zAdding the mixture into the composite powder, standing, adding potassium peroxymonosulfate, and stirring uniformly to obtain hybrid powder;
and adding iron salt into the obtained hybrid powder, uniformly stirring, adding diatomite, stirring for dispersing, and drying to obtain the disinfectant powder.
As an optional implementation mode, the temperature is raised to 28-32 ℃ at the speed of 1-3 ℃/s;
the temperature is controlled to be raised to 28-32 ℃ at a constant temperature of 1-3 ℃, and the main purpose is that the calcium hypochlorite directly reacts due to the violent temperature change in the stirring process of the calcium hypochlorite, so that chlorine overflows and the purity of the product is influenced; when the temperature range is too high, calcium hypochlorite is easy to directly react to generate a product, so that the effectiveness of the product is influenced; when the temperature range is too low, the gap between the calcium hypochlorite and the mixed powder is increased, so that the mixed parts of the calcium hypochlorite cannot be uniformly mixed, the calcium hypochlorite reacts firstly during use, the active auxiliary agent cannot react firstly, the calcium hypochlorite is completely consumed, and the active auxiliary agent is not reacted, so that the aim of full degradation cannot be fulfilled.
The following will explain in detail a degradable disinfectant and its preparation method in the present application with reference to examples, comparative examples and related experiments.
Example 1
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl;
the active assistant comprises 8 parts by weight of loaded Bi2O3Catalyst, 19 parts of polyethylene glycol, 8 parts of phosphoric acid compound;
the phosphoric acid compound is a mixture of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate with the weight ratio of 3: 1;
the RNx(OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)1(COOH)2And RN2(OH)0(COOH)4Wherein R is alkyl;
the temperature is raised to 30 ℃ at the speed of 2 ℃/s.
Example 2
The disinfectant comprises the following components in parts by weight: 10 parts of RNx(OH)y(COOH)z40 parts of sodium calcium hypochlorite, 10 parts of diatomite, 15 parts of potassium hydrogen peroxymonosulfate, 6 parts of wood activated carbon fiber, 2 parts of an active assistant and 8 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl;
the active assistant comprises 2 parts by weight of loaded Bi2O3Catalyst, 15 parts of polyethylene glycol, 5 parts of phosphoric acid compound;
the temperature is increased to 28 ℃ at the speed of 1 ℃/s;
the rest of the procedure and the recipe were the same as in example 1.
Example 3
The disinfectant comprises the following components in parts by weight: 25 parts of RNx(OH)y(COOH)z55 parts of sodium calcium hypochlorite, 15 parts of diatomite, 20 parts of potassium hydrogen peroxymonosulfate, 10 parts of wood activated carbon fiber, 10 parts of active additive and 15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl;
the active assistant comprises 10 parts by weight of loaded Bi2O3Catalyst, 20 parts of polyethylene glycol, 10 parts of phosphoric acid compound;
the temperature is increased to 32 ℃ at the speed of 3 ℃/s;
the rest of the procedure and the recipe were the same as in example 1.
Example 4
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl;
the active assistant comprises 2 parts by weight of loaded Bi2O3Catalyst, 15 parts of polyethylene glycol, 5 parts of phosphoric acid compound;
the above-mentionedRN ofx(OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)2(COOH)2、RN0(OH)1(COOH)3Wherein R is alkyl;
the temperature is increased to 32 ℃ at the speed of 1 ℃/s;
the rest of the procedure and the recipe were the same as in example 1.
Example 5
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl;
the active assistant comprises 10 parts by weight of loaded Bi2O3Catalyst, 20 parts of polyethylene glycol, 10 parts of phosphoric acid compound;
the RNx(OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)2(COOH)2、RN0(OH)1(COOH)3Wherein R is alkyl;
the temperature is increased to 28 ℃ at the speed of 3 ℃/s;
the rest of the procedure and the recipe were the same as in example 1.
Comparative example 1
The phosphoric acid compound is a mixture of potassium dihydrogen phosphate and potassium hydrogen phosphate with the weight ratio of 1: 1; the RNx(OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)2(COOH)2、RN0(OH)1(COOH)3Wherein R is alkyl;
the rest of the procedure and the recipe were the same as in example 1.
Comparative example 2
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite and 17 parts of sodium hypochloritePotassium hydrogen sulfate, 7 parts of wood activated carbon fiber, 0 part of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, R is alkyl, and the rest steps and the formula are the same as those of example 1.
Comparative example 3
The disinfectant comprises the following components in parts by weight: 0 part of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the rest of the procedure and the recipe were the same as in example 1.
Comparative example 4
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z0 part of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the rest of the procedure and the recipe were the same as in example 1.
Comparative example 5
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 0 part of potassium hydrogen peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the rest of the procedure and the recipe were the same as in example 1.
Comparative example 6
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodium calcium hypochlorite, 13 parts of diatomite, 17 parts of potassium peroxymonosulfate, 0 part of wood activated carbon fiber, 8 parts of active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the rest of the procedure and the recipe were the same as in example 1.
Comparative example 7
The disinfectant comprises the following components in parts by weight: 20 parts of RNx(OH)y(COOH)z50 parts of sodiumThe composite material comprises the following components, by weight, 0 part of diatomite, 17 parts of potassium hydrogen peroxymonosulfate, 7 parts of wood activated carbon fiber, 8 parts of an active additive and 10 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl; the rest of the procedure and the recipe were the same as in example 1.
Related experiments:
the disinfectants prepared in examples 1-5 and comparative examples 1-7 were subjected to performance tests, and the test results are shown in table 1.
The related test method comprises the following steps:
the testing method of the available chlorine content comprises the following steps: testing the content of available chlorine: the test is carried out according to the disinfection technical specification (2002 edition), the concentration of a sodium thiosulfate standard titration solution is 0.1179mol/L, the test temperature is 40 ℃, the relative humidity is 53%, and the reduction rate of the effective chlorine content is tested after the sodium thiosulfate standard titration solution is placed for 10 days and 90 days. Wherein, the effective chlorine content reduction rate is less than or equal to 2.5 percent and evaluated as excellent, the effective chlorine content reduction rate is more than 2.5 percent and less than or equal to 5 percent and evaluated as medium, and the effective chlorine content reduction rate is more than 5 percent and evaluated as poor.
The method for testing the sterilization efficiency comprises the following steps: at 6X 108CFU/mL escherichia coli is used as a test bacterium, after the disinfectant (the available chlorine is 3mg/L) acts for a certain time, the sterilization rate is detected, and if the sterilization rate reaches 100%, an equal amount of test bacterium is added for continuing the test; and (3) detecting the sterilization rate after 3 hours, wherein the sterilization rate is more than or equal to 88 percent and is evaluated as excellent, the sterilization rate is more than or equal to 75 percent and less than 88 percent and is evaluated as medium, and the sterilization rate is less than 75 percent and is evaluated as poor.
The degradation degree test method comprises the following steps: 1 ton of water was placed in a transparent container at 25 ℃, and about 5 g of the composition powders (20MPa pressure tablet, 50mm gauge diameter and 25mm height) of examples 1 to 5 and comparative examples 1 to 7 were put into the container to react, and after standing still for 15 minutes, the state of dissolution of the powder in the container was visually observed; the evaluation was "o" when there was no visible irregular residue in the vessel, Δ when there was a small amount of visible irregular residue in the vessel, and "x" when there was a large amount of visible irregular residue in the vessel;
TABLE 1 data of test results
Specific analysis of table 1:
from the data of examples 1-5 in Table 1, it can be seen that:
when the active auxiliary agents are used in the weight portion range, the difference of the sterilization efficiency and the degradation degree is not great, and practical statistics shows that the difference of example 4 and example 5 is in the degradation degree, and example 4 contains Bi in a load manner2O3The catalyst content was lower and compared to example 1, RN was used in a weight ratio of 5: 20(OH)2(COOH)2、RN0(OH)1(COOH)3RN ofx(OH)y(COOH)zThe mixture system, thus leading to a considerable reduction in the available chlorine content after 90 hours.
From the data of comparative examples 1-7 in Table 1, it can be seen that:
from the data of comparative example 1, it is understood that the absence of the sodium phosphate compound leads to an increase in the potassium ion content of potassium dihydrogen phosphate and potassium hydrogen phosphate, which may result in inhibition of the hydrolysis process of potassium hydrogen peroxymonosulfate, and thus in the degradation of calcium hypochlorite.
As can be seen from the data of comparative example 2, the coagent is an important component for promoting the whole disinfectant, wherein the decrease of the effective chlorine content indicates a decisive factor with the calcium hypochlorite, and the decrease of the effective chlorine content is too large to be practically applied without adding the coagent.
From the data of comparative example 3, RNx(OH)y(COOH)zThe combined action of iron salt and the like is one of the factors influencing the sterilization efficiency.
From the data of comparative examples 4 to 5, it is understood that sodium-process calcium hypochlorite and potassium monopersulfate, which is one of the important factors affecting the composition of calcium hypochlorite, have a decisive effect on the content of available chlorine.
From the data of comparative examples 6 to 7, it is understood that the absence of the supporting body of the woody activated carbon fiber and the diatomaceous earth as the supporting body causes the decrease of the available chlorine content for 90 hours to be poor and the degradation degree of the solution to be affected, but the further absence of the woody activated carbon fiber causes the incapability of loading the active ingredient, thereby causing the decrease of the available chlorine content and the sterilization efficiency to be poor.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
(1) in the embodiment of the invention, circulation restriction relations exist among disinfectants, and the proportion of the whole disinfectants are all related;
(2) the active auxiliary agent provided by the embodiment of the invention can realize a simple photocatalysis process by means of ultraviolet rays or other high-energy illumination, accelerate the decomposition of calcium hypochlorite, form a large amount of effective chlorine components and realize the purposes of quick and stable disinfection and sterilization;
(3) the disinfectants provided by the embodiment of the invention can react with each other, and can be discharged out of a water body and degraded by microorganisms through double adsorption of the wood active carbon fibers and the diatomite, so that the environment is not polluted.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An easily degradable disinfectant is characterized in that the disinfectant comprises the following components in parts by weight: 10-25 parts of RNx(OH)y(COOH)z40-55 parts of sodium calcium hypochlorite, 10-15 parts of diatomite, 15-20 parts of potassium peroxymonosulfate, 6-10 parts of wood activated carbon fiber, 2-10 parts of an active additive and 8-15 parts of iron salt; wherein x is 0-2, y is 0-2, z is 2-4, and R is alkyl.
2. An easily degradable disinfectant as claimed in claim 1, wherein said coagent comprises 2-10 parts by weight of Bi-loaded2O3Catalyst, 15-20 parts of polyethylene glycol and 5-10 parts of phosphoric acid compound.
3. A readily degradable disinfectant as claimed in claim 2, wherein said supported Bi2O3The catalyst adopts carbon fiber as a carrier to form supported Bi by a chemical precipitation method2O3A catalyst.
4. A readily degradable disinfectant according to claim 2 wherein said phosphate compound is at least one of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate.
5. A readily degradable disinfectant according to claim 4 wherein said phosphate compound is a mixture of sodium phosphate, potassium dihydrogen phosphate and potassium hydrogen phosphate in a weight ratio of 3: 1.
6. The easily degradable disinfectant as set forth in claim 1, wherein said iron salt is prepared by mixing ferric sulfate and ferrous sulfate in a weight ratio of 1: 1.
7. A readily degradable disinfectant according to claim 1,the RNx(OH)y(COOH)zSelecting RN0(OH)1(COOH)2、RN2(OH)0(COOH)4、RN0(OH)2(COOH)2、RN0(OH)1(COOH)3Wherein R is an alkyl group.
8. A readily degradable disinfectant according to claim 6 wherein said RN is further characterized byx((OH)y(COOH)zIs RN with the weight ratio of 5: 20(OH)1(COOH)2And RN2(OH)0(COOH)4Wherein R is an alkyl group.
9. A method of preparing a readily degradable disinfectant as claimed in any of claims 1 to 7, said method comprising:
dissolving the active auxiliary agent in water, adding the wood carbon active fiber, stirring for 10-15min, standing for layering, centrifuging, stirring again, and drying to obtain mixed powder;
adding sodium-method calcium hypochlorite into the mixed powder, heating and stirring to obtain composite powder;
RN (relay node)x(OH)y(COOH)zAdding the mixture into the composite powder, standing, adding potassium peroxymonosulfate, and stirring uniformly to obtain hybrid powder;
and adding iron salt into the obtained hybrid powder, uniformly stirring, adding diatomite, stirring for dispersing, and drying to obtain the disinfectant.
10. A method as claimed in claim 9, wherein said temperature is raised to a temperature of between 28 ℃ and 32 ℃ at a rate of between 1 ℃ and 3 ℃/s.
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