CN111955480A - Water treatment bactericide - Google Patents
Water treatment bactericide Download PDFInfo
- Publication number
- CN111955480A CN111955480A CN202010769318.1A CN202010769318A CN111955480A CN 111955480 A CN111955480 A CN 111955480A CN 202010769318 A CN202010769318 A CN 202010769318A CN 111955480 A CN111955480 A CN 111955480A
- Authority
- CN
- China
- Prior art keywords
- parts
- water
- bactericide
- weight
- water treatment
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 83
- 239000003899 bactericide agent Substances 0.000 title claims abstract description 74
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 54
- -1 diiodomethyl p-methyl phenyl Chemical group 0.000 claims abstract description 41
- KHSLHYAUZSPBIU-UHFFFAOYSA-M benzododecinium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 KHSLHYAUZSPBIU-UHFFFAOYSA-M 0.000 claims abstract description 26
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 23
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 23
- 229930182558 Sterol Natural products 0.000 claims abstract description 17
- 150000003432 sterols Chemical class 0.000 claims abstract description 17
- 235000003702 sterols Nutrition 0.000 claims abstract description 17
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 53
- 238000005086 pumping Methods 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 34
- 229920002401 polyacrylamide Polymers 0.000 claims description 33
- 229920001661 Chitosan Polymers 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 28
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 17
- 229910019142 PO4 Inorganic materials 0.000 claims description 16
- 239000010452 phosphate Substances 0.000 claims description 16
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims description 13
- 239000012043 crude product Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 239000011257 shell material Substances 0.000 claims description 10
- 239000003139 biocide Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- WREBNDYJJMUWAO-LWYYNNOASA-N [(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthren-1-yl]methanamine Chemical compound NC[C@]1(C)CCC[C@]2(C)[C@@H](CCC(C(C)C)=C3)C3=CC[C@H]21 WREBNDYJJMUWAO-LWYYNNOASA-N 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- UMGXUWVIJIQANV-UHFFFAOYSA-M didecyl(dimethyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC UMGXUWVIJIQANV-UHFFFAOYSA-M 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 229920001519 homopolymer Polymers 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 230000003115 biocidal effect Effects 0.000 claims 7
- 230000001954 sterilising effect Effects 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 15
- 230000001590 oxidative effect Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 230000005764 inhibitory process Effects 0.000 description 15
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 8
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 8
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 8
- 230000002195 synergetic effect Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000002070 germicidal effect Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 150000003431 steroids Chemical class 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000002353 algacidal effect Effects 0.000 description 1
- 238000013096 assay test Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- FMSYTQMJOCCCQS-UHFFFAOYSA-L difluoromercury Chemical compound F[Hg]F FMSYTQMJOCCCQS-UHFFFAOYSA-L 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229960002523 mercuric chloride Drugs 0.000 description 1
- 229940101209 mercuric oxide Drugs 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- 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
- A01N59/20—Copper
-
- 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
- A01N25/26—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 in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- 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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
-
- 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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
-
- 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
- A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
- C02F1/64—Heavy metal compounds of iron or manganese
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Zoology (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application relates to a water treatment bactericide, which relates to the technical field of water treatment and comprises the following components in parts by weight: 10-20 parts of isothiazolinone, 1-3 parts of copper sulfate, 2-10 parts of dodecyl dimethyl benzyl ammonium bromide, 1-5 parts of water-soluble sterol oil, 2-6 parts of diiodomethyl p-methyl phenyl sulfone, 80-100 parts of water, 10-20 parts of ethanol, 0.05-0.1 part of defoaming agent and 0.02-0.06 part of stabilizer. The application has the effect of improving the defect of low sterilization rate of a single non-oxidizing bactericide.
Description
Technical Field
The application relates to the technical field of water treatment, in particular to a water treatment bactericide.
Background
The circulating water system is a special and complex ecological environment and is suitable for the growth of various microorganisms. The growth of microorganism can lead to cooling tower pond to be covered with green alga, the inside a large amount of clay that generates of condenser tube, and alga and clay all can cause equipment pipeline to block up, corrode, influence the heat exchange efficiency of heat exchanger and lead to quality of water to worsen, have caused huge economic loss for industrial production. Therefore, biocides are commonly used in circulating water systems to kill or inhibit the growth of microorganisms.
The water treatment bactericide is a chemical which can inhibit the growth of bacteria, algae and microorganisms in water so as to prevent the formation of microorganism slime and avoid the harm of the slime to a system. The water treatment bactericide comprises: oxidizing bactericides such as chlorine, sodium hypochlorite, bleaching powder, ozone, chloramine and the like; ② non-oxidizing bactericides such as dodecyldimethylbenzylammonium chloride, dodecyldimethylbenzylammonium bromide, dithiocyanomethane, and the like; ③ heavy metal compounds, such as mercuric oxide, mercuric chloride, mercuric fluoride, etc.; slime bactericides, such as rosin amine, hydrogen peroxide, guanidine polymer and the like. The non-oxidizing bactericide does not kill microbes by oxidation, but poisons special parts of microbes, so that the bactericide is not influenced by reducing substances in water and the pH value of water, and has good durability. However, the currently used non-oxidative germicides are mainly single germicides, which have low germicidal efficiency, and long-term use of the germicides can cause drug resistance in organisms, resulting in reduction of the germicidal effect.
Disclosure of Invention
In order to overcome the defect of low sterilization rate of a single non-oxidizing bactericide, the application provides a water treatment bactericide.
The application provides a water treatment bactericide, which adopts the following technical scheme:
a water treatment bactericide comprises the following components in parts by weight: 10-20 parts of isothiazolinone, 1-3 parts of copper sulfate, 2-10 parts of dodecyl dimethyl benzyl ammonium bromide, 1-5 parts of water-soluble sterol oil, 2-6 parts of diiodomethyl p-methyl phenyl sulfone, 80-100 parts of water, 10-20 parts of ethanol, 0.05-0.1 part of defoaming agent and 0.02-0.06 part of stabilizer.
By adopting the technical scheme, the isothiazolinone and the dodecyl dimethyl benzyl ammonium bromide have good synergistic effect, and the defects of low sterilization rate and unstable sterilization performance of the bactericide can be improved by using the isothiazolinone and the dodecyl dimethyl benzyl ammonium bromide in a matched manner; the sterol oil is a main antibacterial component in the plant fiber, and is mild in property, non-toxic and environment-friendly; the diiodomethyl-p-methyl phenylsulfone has stable property and lasting bactericidal effect, and is suitable for inhibiting and killing various strains. The components of the formula have a certain synergistic cooperation effect, and act together in circulating water, so that the sterilization agent has the characteristics of long sterilization time and high sterilization efficiency.
Preferably, the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, a defoaming agent and a stabilizer into the reaction kettle in sequence under the stirring state, and finally pumping the rest water into the reaction kettle; 2) and stirring the materials for 30-40 min after the pumping is finished, and obtaining the bactericide after the mixed liquid is clear and transparent.
By adopting the technical scheme, 90% of water is extracted from the total water for dissolving all components, and the addition of ethanol is used for increasing the dissolution rate of diiodomethyl-p-toluenesulfone in water; the residual 10 percent of water is finally pumped into the reaction kettle, on one hand, the water solvent in the reaction kettle is supplemented, and on the other hand, the water solvent has the function of cleaning a pumping pipe.
Preferably, the bactericide also comprises 5 parts of hydroxyethylidene diphosphonic acid and 2 parts of abietylamine.
By adopting the technical scheme, the hydroxyethylidene diphosphonic acid can form a stable complex with various metal ions such as iron, copper, zinc and the like, can dissolve oxides on the metal surface, has excellent scale and corrosion inhibition effects, is used by being compounded with the rosin amine, has good synergistic effect, and can remarkably delay the formation rate of dirt in circulating water.
Preferably, the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan modified polyacrylamide.
By adopting the technical scheme, the chitosan modified polyacrylamide material can be gradually dissolved in the circulating water, and the bactericide coated in the chitosan modified polyacrylamide material can be gradually exposed and dispersed in the circulating water, so that the durable bactericidal performance is provided for the circulating water; the chitosan modified polyacrylamide material has good flocculation performance, and can form a complex with insoluble particles after being dissolved in circulating water, so that the effect of cleaning water quality and sterilizing is achieved.
Preferably, the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 3 parts by weight of chitosan in 10 parts by weight of deionized water; 2) blending the dissolved solution with 25 parts by weight of polyacrylamide colloid, stirring for 20min, adding 0.07 part by weight of potassium persulfate, and stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) precipitating and separating the crude product by using an excessive ethanol solvent, and drying to obtain a crude modified substance; 5) and (3) taking acetone as an extracting agent, placing the crude modifier in a Soxhlet extractor for extraction for 8 hours to remove a homopolymer, and drying in vacuum to obtain the chitosan modified polyacrylamide.
Preferably, the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 5 parts by weight of chitosan in 15 parts by weight of deionized water; 2) blending the dissolved solution with 30 parts by weight of polyacrylamide colloid, adding 2 parts by weight of didecyl dimethyl ammonium bromide into the blend, stirring for 20min, adding 0.1 part by weight of potassium persulfate, stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) and (4) granulating and screening the crude product to obtain the chitosan modified polyacrylamide.
Through adopting above-mentioned technical scheme, didecyl dimethyl ammonium bromide has good wall stripping performance, can make the slime of adhering to the container inner wall break away from, uses this component to modify polyacrylamide for not only have good flocculation performance after chitosan modified polyacrylamide dissolves in aqueous, still have certain slime stripping performance, thereby strengthen the clean degerming effect of quality of water.
Preferably, the defoaming agent is a fluorinated alkyl phosphate.
By adopting the technical scheme, the fluorinated alkyl phosphate is suitable for being used under the conditions of small liquid shearing force and mild foaming capacity, and the preparation raw materials are easy to obtain, high in environmental protection performance and low in production cost, so that the fluorinated alkyl phosphate is selected as the defoaming agent of the formula.
Preferably, the stabilizer is sodium tripolyphosphate.
By adopting the technical scheme, the sodium tripolyphosphate has the functions of chelation, suspension, dispersion, pH buffering and the like, and is low in cost, non-toxic and environment-friendly, so that the sodium tripolyphosphate is selected as a stabilizer of the formula.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the components of the formula have a certain synergistic cooperation effect, and act together in circulating water, so that the water-saving sterilizing agent has the characteristics of long sterilizing time and high sterilizing efficiency;
2. the hydroxyethylidene diphosphonic acid can form a stable complex with various metal ions such as iron, copper, zinc and the like, can dissolve oxides on the metal surface, has excellent scale and corrosion inhibition effects, is used by being compounded with the abietylamine, has good synergistic effect and can obviously delay the formation rate of dirt in circulating water;
3. the chitosan modified polyacrylamide material can be gradually dissolved in circulating water, and the bactericide coated in the chitosan modified polyacrylamide material can be gradually exposed and dispersed in the circulating water, so that the durable bactericidal performance is provided for the circulating water.
Detailed Description
The embodiment of the application discloses a water treatment bactericide.
Example 1
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 3 parts of water-soluble sterol oil, 4 parts of diiodomethyl p-methyl phenyl sulfone, 90 parts of water, 15 parts of ethanol, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 2
The bactericide comprises the following components in parts by weight: 10 parts of isothiazolinone, 1 part of copper sulfate, 2 parts of dodecyl dimethyl benzyl ammonium bromide, 1 part of water-soluble sterol oil, 2 parts of diiodomethyl p-methyl phenyl sulfone, 80 parts of water, 10 parts of ethanol, 0.05 part of fluorinated alkyl phosphate and 0.02 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 30min after the pumping is finished, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 3
The bactericide comprises the following components in parts by weight: 20 parts of isothiazolinone, 3 parts of copper sulfate, 10 parts of dodecyl dimethyl benzyl ammonium bromide, 5 parts of water-soluble sterol oil, 6 parts of diiodomethyl p-methyl phenyl sulfone, 100 parts of water, 20 parts of ethanol, 0.1 part of fluorinated alkyl phosphate and 0.06 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 40min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 4
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 3 parts of water-soluble sterol oil, 4 parts of diiodomethyl p-methyl phenyl sulfone, 90 parts of water, 15 parts of ethanol, 3 parts of rosin amine, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, rosin amine, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 5
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 7 parts of hydroxyethylidene diphosphonic acid, 3 parts of water-soluble steroid oil, 4 parts of diiodomethyl p-methyl phenyl sulfone, 90 parts of water, 15 parts of ethanol, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, hydroxy ethylidene diphosphonic acid, water-soluble steroid oil, diiodomethyl p-methyl phenyl sulfone, fluorinated alkyl phosphate and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 6
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 7 parts of hydroxyethylidene diphosphonic acid, 3 parts of water-soluble steroid oil, 4 parts of diiodomethyl p-methyl phenyl sulfone, 90 parts of water, 15 parts of ethanol, 3 parts of rosin amine, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, hydroxyethylidene diphosphonic acid, water-soluble steroid oil, diiodomethyl p-methyl phenyl sulfone, rosin amine, fluorinated alkyl phosphate and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Example 7
The difference between the embodiment and embodiment 1 is that the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan-modified polyacrylamide;
the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 3 parts by weight of chitosan in 10 parts by weight of deionized water; 2) blending the dissolved solution with 25 parts by weight of polyacrylamide colloid, stirring for 20min, adding 0.07 part by weight of potassium persulfate, and stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) precipitating and separating the crude product by using an excessive ethanol solvent, and drying to obtain a crude modified substance; 5) and (3) taking acetone as an extracting agent, placing the crude modifier in a Soxhlet extractor for extraction for 8 hours to remove a homopolymer, and drying in vacuum to obtain the chitosan modified polyacrylamide.
Example 8
The difference between the embodiment and embodiment 1 is that the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan-modified polyacrylamide;
the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 5 parts by weight of chitosan in 15 parts by weight of deionized water; 2) blending the dissolved solution with 30 parts by weight of polyacrylamide colloid, adding 2 parts by weight of didecyl dimethyl ammonium bromide into the blend, stirring for 20min, adding 0.1 part by weight of potassium persulfate, stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) and (4) granulating and screening the crude product to obtain the chitosan modified polyacrylamide.
Example 9
The difference between the present embodiment and embodiment 6 is that the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan-modified polyacrylamide;
the preparation method of the chitosan modified polyacrylamide is the same as that of example 7.
Example 10
The difference between the present embodiment and embodiment 6 is that the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan-modified polyacrylamide;
the preparation method of the chitosan modified polyacrylamide is the same as that of example 8.
Comparative example 1
A water treatment bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 4 parts of diiodomethyl p-methyl phenyl sulfone, 90 parts of water, 15 parts of ethanol, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, diiodomethyl p-methyl phenyl sulfone, fluorinated alkyl phosphate and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest of water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Comparative example 2
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 3 parts of water-soluble sterol oil, 90 parts of water, 15 parts of ethanol, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate;
the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Comparative example 3
The bactericide comprises the following components in parts by weight: 15 parts of isothiazolinone, 2 parts of copper sulfate, 6 parts of dodecyl dimethyl benzyl ammonium bromide, 90 parts of water, 15 parts of ethanol, 0.075 part of fluorinated alkyl phosphate and 0.04 part of sodium tripolyphosphate; the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, alkyl phosphate fluoride and sodium tripolyphosphate into the reaction kettle in sequence under the stirring state, and pumping the rest water into the reaction kettle; 2) stirring the materials for 35min after pumping, and obtaining the bactericide after the mixed liquid is clear and transparent.
Performance test
The fungicides prepared from the formulations of examples 1 to 10 and comparative examples 1 to 3 were sampled, and the samples were subjected to the following performance test tests.
1. Detection of bactericidal and algicidal properties
1) The test method comprises the following steps: culturing multiple bacterial suspensions in a culture dish at the constant temperature of 37 ℃, and adding the samples into the bacterial suspensions to be fully shaken;
2) and (3) test results: the initial colony count was recorded before the sample was placed in the petri dish, the colonies were sampled at 6h, 24h and 7d, respectively, and counted under a microscope to calculate the sterilization rate of the sample, and the test results were recorded in table 1.
TABLE 1
2. Detection of scale and corrosion inhibition performance
And (3) detecting the scale and corrosion inhibition performance of the sample by referring to GB/T16632-2008 'calcium carbonate deposition method for measuring scale and corrosion inhibition performance of water treatment agents', and recording the detection result in a table 2.
TABLE 2
3. Assay test data analysis
As can be seen from the detection test data in tables 1 and 2:
1) the addition amount of each component in the bactericide formula is changed in the embodiments 1-3, the sterilizing efficiency of the bactericide can reach more than 84% within 6 hours, the sterilizing rate can reach more than 96% within 24 hours, the sterilizing rate is still kept more than 80% after 7 days, and the scale inhibition rate is more than 90%, so that the bactericide has a good sterilizing effect, long sterilizing effect duration and good scale and corrosion inhibition performance;
2) the difference between the embodiments 4-6 and the embodiment 1 is that the abietylamine and the hydroxyethylidene diphosphonic acid are respectively added and the two are simultaneously added, and the test data shows that the sterilization effect and the scale and corrosion inhibition performance of the three groups of bactericides are improved, which indicates that the addition of the abietylamine and the hydroxyethylidene diphosphonic acid has an obvious promotion effect on the improvement of the performance of the bactericides; the bactericidal performance and the corrosion and scale inhibition performance of the bactericide in the embodiment 6 are superior to those of the bactericide in the embodiments 4 and 5, which shows that the rosin amine and the hydroxyethylidene diphosphonic acid are added simultaneously to have a certain synergistic effect, and the synergistic effect is realized by the coordination of the rosin amine and the hydroxyethylidene diphosphonic acid with the components of the bactericide;
3) the difference between the embodiments 7-10 and the embodiment 1 is that the bactericide is coated in the hollow water-soluble nanoparticles; as can be seen from the comparison of the data in examples 7 and 9 with example 1, the bactericidal effect and the scale and corrosion inhibition effect of the bactericide coated in the hollow nano water-soluble particles are stronger, which indicates that the hollow nano water-soluble particles have the effects of improving the dispersion uniformity and the sterilization durability of the bactericide, and the shell material of the hollow nano water-soluble particles has certain flocculation, sterilization and scale inhibition effects, so that the overall sterilization and scale inhibition performance of the product is improved; compared with the shell materials of the embodiment 7 and the embodiment 9, the shell materials of the embodiment 8 and the embodiment 10 are different, and didecyl dimethyl ammonium bromide with good wall stripping performance is added into the shell, so that the overall sterilization performance and corrosion inhibition performance of the product are further improved; examples 7 and 8 do not contain abietylamine and hydroxyethylidene diphosphonic acid in the formula components compared with examples 9 and 10, and the bactericidal performance is weaker than that of examples 9 and 10, which shows that the arrangement of the hollow nano water-soluble particles does not generate negative effect on the bactericidal performance of the bactericide;
4) the difference between the comparative examples 1-3 and the example 1 is that the water-soluble sterol oil and the diiodomethyl-p-toluenesulfone in the components of the formula are respectively deleted, and the two components are simultaneously deleted, the sterilization performance and the scale inhibition performance of the bactericide in the three groups of comparative examples show an obvious descending trend, and the two components have an obvious promotion effect on improving the sterilization and scale inhibition performance of the bactericide.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A water treatment bactericide comprises the following components in parts by weight: 10-20 parts of isothiazolinone, 1-3 parts of copper sulfate, 2-10 parts of dodecyl dimethyl benzyl ammonium bromide, 1-5 parts of water-soluble sterol oil, 2-6 parts of diiodomethyl p-methyl phenyl sulfone, 80-100 parts of water, 10-20 parts of ethanol, 0.05-0.1 part of defoaming agent and 0.02-0.06 part of stabilizer.
2. A water treatment biocide as claimed in claim 1, wherein: the preparation method of the bactericide comprises the following steps: 1) adding 90% of water in the total water into a reaction kettle, pumping ethanol, isothiazolinone, copper sulfate, dodecyl dimethyl benzyl ammonium bromide, water-soluble sterol oil, diiodomethyl p-methyl phenyl sulfone, a defoaming agent and a stabilizer into the reaction kettle in sequence under the stirring state, and finally pumping the rest water into the reaction kettle; 2) and stirring the materials for 30-40 min after the pumping is finished, and obtaining the bactericide after the mixed liquid is clear and transparent.
3. A water treatment biocide as claimed in claim 1, wherein: the bactericide also comprises 5 parts of hydroxyethylidene diphosphonic acid and 2 parts of abietylamine.
4. A water treatment biocide as claimed in claim 1, wherein: the bactericide is coated in the hollow nano water-soluble particles, and the shell material of the hollow nano water-soluble particles is chitosan modified polyacrylamide.
5. A water treatment biocide as claimed in claim 4, wherein: the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 3 parts by weight of chitosan in 10 parts by weight of deionized water; 2) blending the dissolved solution with 25 parts by weight of polyacrylamide colloid, stirring for 20min, adding 0.07 part by weight of potassium persulfate, and stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) precipitating and separating the crude product by using an excessive ethanol solvent, and drying to obtain a crude modified substance; 5) and (3) taking acetone as an extracting agent, placing the crude modifier in a Soxhlet extractor for extraction for 8 hours to remove a homopolymer, and drying in vacuum to obtain the chitosan modified polyacrylamide.
6. A water treatment biocide as claimed in claim 4, wherein: the preparation method of the chitosan modified polyacrylamide comprises the following steps: 1) dissolving 5 parts by weight of chitosan in 15 parts by weight of deionized water; 2) blending the dissolved solution with 30 parts by weight of polyacrylamide colloid, adding 2 parts by weight of didecyl dimethyl ammonium bromide into the blend, stirring for 20min, adding 0.1 part by weight of potassium persulfate, stirring at the constant temperature of 35 ℃ for reaction for 8h under the nitrogen atmosphere to obtain a reaction material; 3) naturally cooling the reaction material at room temperature for 18h to obtain a crude product; 4) and (4) granulating and screening the crude product to obtain the chitosan modified polyacrylamide.
7. A water treatment biocide as claimed in claim 1, wherein: the defoaming agent is fluorinated alkyl phosphate.
8. A water treatment biocide as claimed in claim 1, wherein: the stabilizer is sodium tripolyphosphate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113367143A (en) * | 2021-06-10 | 2021-09-10 | 浙江先拓环保科技有限公司 | Sewage antibacterial agent and preparation method thereof |
| CN115637190A (en) * | 2022-09-22 | 2023-01-24 | 陕西耀威铜业有限公司 | Precise copper wire drawing lubricating fluid and preparation method thereof |
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| CN108041075A (en) * | 2017-12-11 | 2018-05-18 | 佛山高富中石油燃料沥青有限责任公司 | A kind of efficient compound fungicide |
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| CN101601409A (en) * | 2009-05-26 | 2009-12-16 | 兰州华星高科技开发有限公司 | Sterilization and alga-killing remover for circulating water |
| CN106008822A (en) * | 2016-06-21 | 2016-10-12 | 上海东升新材料有限公司 | Polyacrylamide flocculant modified by chitosan and preparing method thereof |
| CN108041075A (en) * | 2017-12-11 | 2018-05-18 | 佛山高富中石油燃料沥青有限责任公司 | A kind of efficient compound fungicide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113367143A (en) * | 2021-06-10 | 2021-09-10 | 浙江先拓环保科技有限公司 | Sewage antibacterial agent and preparation method thereof |
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