CN111056603A - Efficient broad-spectrum bactericide for circulating water - Google Patents
Efficient broad-spectrum bactericide for circulating water Download PDFInfo
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- CN111056603A CN111056603A CN201911297837.6A CN201911297837A CN111056603A CN 111056603 A CN111056603 A CN 111056603A CN 201911297837 A CN201911297837 A CN 201911297837A CN 111056603 A CN111056603 A CN 111056603A
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- circulating water
- particle size
- average particle
- carbaryl
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003899 bactericide agent Substances 0.000 title claims abstract description 30
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 25
- CVXBEEMKQHEXEN-UHFFFAOYSA-N carbaryl Chemical compound C1=CC=C2C(OC(=O)NC)=CC=CC2=C1 CVXBEEMKQHEXEN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229960005286 carbaryl Drugs 0.000 claims abstract description 20
- YBNLWIZAWPBUKQ-UHFFFAOYSA-N trichloro(trichloromethylsulfonyl)methane Chemical compound ClC(Cl)(Cl)S(=O)(=O)C(Cl)(Cl)Cl YBNLWIZAWPBUKQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920001661 Chitosan Polymers 0.000 claims abstract description 16
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical compound [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000004005 microsphere Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 8
- 239000003826 tablet Substances 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 239000007932 molded tablet Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 230000001954 sterilising effect Effects 0.000 abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 10
- 241000195493 Cryptophyta Species 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 239000003814 drug Substances 0.000 description 4
- 206010059866 Drug resistance Diseases 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- 241000295146 Gallionellaceae Species 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000004916 vomit Anatomy 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a circulating water efficient broad-spectrum bactericide which is prepared from the following components in parts by weight: 70 parts of carbaryl, 15-17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3-5 parts of zinc nitrate and 13-20 parts of porous chitosan microspheres with the average particle size of 2-8 mu m; according to the invention, the carbaryl and the hexachlorodimethyl sulfone enter the cavities of the porous chitosan microspheres, are extruded into a tablet, are mixed with the calcium dodecylbenzene sulfonate and the zinc nitrate, and are ground into the powdery bactericide, so that bacteria can be effectively adsorbed and killed, and the sterilization effect is greatly improved.
Description
Technical Field
The invention relates to the technical field of cooling water sterilization, in particular to a circulating water efficient broad-spectrum bactericide.
Background
Because the circulating water is continuously concentrated and added with the chemicals, the compound nutrition degree is increased, a plurality of impurities, organic matters and inorganic matters are arranged in the circulating water, and the proper temperature and rich substances provide sufficient conditions for the growth and the propagation of the microorganisms, so that the microorganisms grow vigorously to form a large amount of slime, the flow rate of the circulating water is reduced, the temperature of condensed water is increased, the vacuum degree of a condenser is reduced, and the safe and economic operation of a unit is influenced. The slime deposited on the metal surface can cause serious under-deposit corrosion, and simultaneously, the effect of the corrosion and scale inhibitor on the metal is isolated, so that the heat transfer efficiency and the cooling effect of heat exchange equipment are influenced, and the cooling efficiency is reduced. But also reduces the internal cross-section of the water pipe. Thereby affecting the service life. After the microorganisms in the circulating cooling water are propagated in a large quantity, firstly, the microorganisms generate vomit odor and color, and then organic slime is formed, and the odor comes from the microorganisms or metabolites thereof.
The most effective method for controlling the number of microorganisms in the circulating water system is to add a bactericide. The single-component bactericide has the characteristics of large dosage, poor treatment effect, easy generation of drug resistance and strong negative effect. If the addition of the oxidizing bactericide increases the corrosion of chloride ions. Therefore, the development of a novel product which has stronger sterilization performance, broad-spectrum sterilization variety and multi-component coordination effect and has important significance for replacing the conventional bactericide.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of single component: provides a novel circulating water high-efficiency broad-spectrum bactericide which can be used as a system generating drug resistance to provide high-efficiency bactericidal action.
The technical solution of the invention is as follows: the efficient broad-spectrum bactericide for circulating water is prepared from the following components in parts by weight: 70 parts of carbaryl, 15-17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3-5 parts of zinc nitrate and 13-20 parts of porous chitosan microspheres with the average particle size of 2-8 microns.
Preferably, the composition is prepared from the following components in parts by weight: 70 parts of carbaryl, 15 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 5 parts of zinc nitrate and 15 parts of porous chitosan microspheres with the average particle size of 2-8 um.
Preferably, the composition is prepared from the following components in parts by weight: 70 parts of carbaryl, 17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3 parts of zinc nitrate and 20 parts of porous chitosan microspheres with the average particle size of 2-8 um.
The preparation method of the circulating water high-efficiency broad-spectrum bactericide comprises the following steps:
1) firstly, mixing and ball-milling carbaryl, hexachloro dimethyl sulfone and porous chitosan microspheres with the average particle size of 2-8um until the average particle size is 0.1-0.3um to obtain a first mixture;
2) adding the first mixture prepared in the step 1) into a mould to be extruded into a tablet form, wherein the pressure is 40-60 kg/cm2The extrusion time is 90-120 s;
3) the high-efficiency broad-spectrum bactericide for circulating water can be obtained by uniformly mixing and stirring the extrusion-molded tablets, calcium dodecylbenzene sulfonate and zinc nitrate and grinding the mixture into particles with the average particle size of 0.5-1 um.
The invention can effectively kill heterotrophic bacteria, iron bacteria, fungi, algae and the like, has broad spectrum, has the sterilization rate of more than 95 percent when the concentration is 20mg/L and the sterilization rate of more than 99 percent when the concentration is 50mg, and has stable drug property, good sterilization performance and wide application range.
Carbamoline is a high-efficiency low-toxicity broad-spectrum bactericide, belonging to the group of carbamates. The bactericidal composition is one of the bactericidal varieties produced in large tonnage in the world, has low price, has good biocidal effect on common bacteria, algae and fungi in circulating water, and is inconvenient to use due to low solubility. The invention solves the problem of difficult dissolving of the carbaryl by the dispersant with good compatibility, and facilitates the large-scale use of the carbaryl on circulating water.
Hexachlorodimethyl sulfone is an organosulfur biocide commonly used in paper mills as a slime inhibitor. But has stronger pertinence and better effect on some bacteria such as iron bacteria and the like. Through test comparison, the two single bactericide solutions have far poorer effects than the two compound solutions. The two compounds have synergistic effect and are used for controlling and removing various bacteria and algae in circulating water to achieve broad-spectrum sterilization effect.
The calcium dodecyl benzene sulfonate is an anionic surfactant, can accelerate the permeability of the medicament and improve the adhesiveness and the bactericidal effect of the medicament on the surfaces of bacteria and algae. The calcium dodecylbenzene sulfonate can also improve the dispersibility of the carbaryl, accelerate the dissolution of the medicament and realize the industrial use of circulating water of the carbaryl.
Zinc nitrate is a cathode corrosion inhibitor of a circulating water system, and the problem of corrosion of the exposed metal surface after the bactericide is stripped of slime is solved.
Firstly, mixing and ball-milling carbaryl, hexachloro dimethyl sulfone and porous chitosan microspheres with the average particle size of 2-8um until the average particle size is 0.1-0.3um to obtain a first mixture; the carbaryl and the hexachlorodimethyl sulfone enter the cavities of the porous chitosan microspheres, are extruded into a tablet, are mixed with the calcium dodecylbenzene sulfonate and the zinc nitrate, and are ground into a powdery bactericide, so that bacteria can be effectively adsorbed and killed, and the sterilization effect is greatly improved.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.
Example one
The circulating water efficient broad-spectrum bactericide is prepared from 70 parts of carbaryl, 15 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 5 parts of zinc nitrate and 15 parts of porous chitosan microspheres with the average particle size of 2-8 microns.
1) Firstly, mixing and ball-milling carbaryl, hexachloro dimethyl sulfone and porous chitosan microspheres with the average particle size of 5um until the average particle size is 0.2um to obtain a first mixture;
2) adding the first mixture prepared in the step 1) into a mould to be extruded into a tablet form, wherein the pressure is 60kg/cm2The extrusion time is 120 s;
3) the high-efficiency broad-spectrum bactericide for circulating water can be obtained by uniformly mixing and stirring the extrusion-molded tablets, calcium dodecylbenzene sulfonate and zinc nitrate and grinding the mixture into particles with the average particle size of 0.5-1 um.
When the bactericide is added into a system of a natural gas chemical industry enterprise, bacteria and algae in the system generate drug resistance and are stubborn in breeding, serious corrosion is generated on an equipment pipeline, and local perforation is realized. Adding 50mg/L circulating water high-efficiency broad-spectrum bactericide into the system, inactivating 99% of bacteria and algae after circulating for 8 hours, adding 500mg/L slime stripping agent, and completely removing the inactivated bacteria and algae out of the system for discharge. The biological slime amount detected after the cleaning is less than 0.1ml/m3Far less than 3 ml/m specified in GB _50050-2007 Standard for design of Industrial circulating Water3。
Example two
The circulating water efficient broad-spectrum bactericide is prepared from 70 parts of carbaryl, 17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3 parts of zinc nitrate and 20 parts of porous chitosan microspheres with the average particle size of 2-8 microns.
1) Firstly, mixing and ball-milling carbaryl, hexachloro dimethyl sulfone and porous chitosan microspheres with the average particle size of 8um until the average particle size is 0.3um to obtain a first mixture;
2) adding the first mixture prepared in step 1) into a mould and extruding the mixture into a tablet form under the pressure of 60kgcm2The extrusion time is 120 s;
3) the extruded tablets are mixed, stirred uniformly and ground into the average grain diameter of 1um to obtain the circulating water high-efficiency broad-spectrum bactericide.
The bactericide is added into a circulating water system of a semiconductor enterprise for daily sterilization treatment. The circulating water high-efficiency broad-spectrum bactericide component is added at the concentration of 30mg/L and is added once per week in an impacting manner. The detected total number of heterotrophic bacteria is less than 100/ml and far less than 10 specified in the design Specification for treating industrial circulating water GB _50050-5One per ml.
The above are merely characteristic embodiments of the present invention, and do not limit the scope of the present invention in any way. All technical solutions formed by equivalent exchanges or equivalent substitutions fall within the protection scope of the present invention.
Claims (4)
1. The efficient broad-spectrum bactericide for circulating water is characterized by comprising the following components in parts by weight: 70 parts of carbaryl, 15-17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3-5 parts of zinc nitrate and 13-20 parts of porous chitosan microspheres with the average particle size of 2-8 microns.
2. The efficient broad-spectrum bactericide for circulating water according to claim 1, which is prepared from the following components in parts by weight: 70 parts of carbaryl, 15 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 5 parts of zinc nitrate and 15 parts of porous chitosan microspheres with the average particle size of 2-8 um.
3. The efficient broad-spectrum bactericide for circulating water according to claim 1, which is prepared from the following components in parts by weight: 70 parts of carbaryl, 17 parts of hexachloro dimethyl sulfone, 10 parts of calcium dodecyl benzene sulfonate, 3 parts of zinc nitrate and 20 parts of porous chitosan microspheres with the average particle size of 2-8 um.
4. The efficient broad-spectrum bactericide for circulating water according to claim 1, which is prepared by the following steps:
1) firstly, mixing and ball-milling carbaryl, hexachloro dimethyl sulfone and porous chitosan microspheres with the average particle size of 2-8um until the average particle size is 0.1-0.3um to obtain a first mixture;
2) adding the first mixture prepared in the step 1) into a mould to be extruded into a tablet form, wherein the pressure is 40-60 kg/cm2The extrusion time is 90-120 s;
3) the high-efficiency broad-spectrum bactericide for circulating water can be obtained by uniformly mixing and stirring the extrusion-molded tablets, calcium dodecylbenzene sulfonate and zinc nitrate and grinding the mixture into particles with the average particle size of 0.5-1 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297837.6A CN111056603A (en) | 2019-12-17 | 2019-12-17 | Efficient broad-spectrum bactericide for circulating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297837.6A CN111056603A (en) | 2019-12-17 | 2019-12-17 | Efficient broad-spectrum bactericide for circulating water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111056603A true CN111056603A (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911297837.6A Pending CN111056603A (en) | 2019-12-17 | 2019-12-17 | Efficient broad-spectrum bactericide for circulating water |
Country Status (1)
| Country | Link |
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| CN (1) | CN111056603A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248603A (en) * | 1985-08-26 | 1987-03-03 | Takeda Chem Ind Ltd | Industrial germicidal composition |
| US6149927A (en) * | 1997-08-14 | 2000-11-21 | Rohm And Haas Company | Solid biocidal compositions |
| US20100016394A1 (en) * | 2008-07-18 | 2010-01-21 | Enzien Michael V | Biocidal compositions |
| CN102256492A (en) * | 2008-12-16 | 2011-11-23 | 巴斯夫欧洲公司 | Synergistic fungicidal mixtures |
| CN106572652A (en) * | 2014-08-07 | 2017-04-19 | 欧米亚国际集团 | Antiseptic product, process for preparing same and its use |
| CN108633879A (en) * | 2018-04-20 | 2018-10-12 | 袁杰 | A kind of circulating water sterilizing agent |
-
2019
- 2019-12-17 CN CN201911297837.6A patent/CN111056603A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248603A (en) * | 1985-08-26 | 1987-03-03 | Takeda Chem Ind Ltd | Industrial germicidal composition |
| US6149927A (en) * | 1997-08-14 | 2000-11-21 | Rohm And Haas Company | Solid biocidal compositions |
| US20100016394A1 (en) * | 2008-07-18 | 2010-01-21 | Enzien Michael V | Biocidal compositions |
| CN102256492A (en) * | 2008-12-16 | 2011-11-23 | 巴斯夫欧洲公司 | Synergistic fungicidal mixtures |
| CN106572652A (en) * | 2014-08-07 | 2017-04-19 | 欧米亚国际集团 | Antiseptic product, process for preparing same and its use |
| CN108633879A (en) * | 2018-04-20 | 2018-10-12 | 袁杰 | A kind of circulating water sterilizing agent |
Non-Patent Citations (4)
| Title |
|---|
| 《有机化学》编写组: "《有机化学》", 31 October 1983, 山东科学技术出版社 * |
| 化学工业出版社: "《中国化工产品大全（第三版）（下卷）》", 31 October 1994, 化学工业出版社 * |
| 宋小平等: "《精细化工品实用生产技术手册 表面活性剂 处理剂及润滑剂制造技术》", 30 September 2006, 科学技术文献出版社 * |
| 许保玖等: "《给水处理理论》", 31 October 2000, 中国建设工业出版社 * |
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