JPH02251292A - Sterilizing material for cooling tower - Google Patents
Sterilizing material for cooling towerInfo
- Publication number
- JPH02251292A JPH02251292A JP7282089A JP7282089A JPH02251292A JP H02251292 A JPH02251292 A JP H02251292A JP 7282089 A JP7282089 A JP 7282089A JP 7282089 A JP7282089 A JP 7282089A JP H02251292 A JPH02251292 A JP H02251292A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sterilizing
- resistant polymer
- bactericidal
- sterilizing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 229910001868 water Inorganic materials 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229920000642 polymer Polymers 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 14
- 239000003206 sterilizing agent Substances 0.000 claims abstract description 11
- 239000004952 Polyamide Substances 0.000 claims abstract description 3
- 239000004743 Polypropylene Substances 0.000 claims abstract description 3
- 229920002647 polyamide Polymers 0.000 claims abstract description 3
- 229920001155 polypropylene Polymers 0.000 claims abstract description 3
- 239000003899 bactericide agent Substances 0.000 claims description 12
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 30
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 29
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract description 24
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 10
- 229910001431 copper ion Inorganic materials 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 9
- 241000589248 Legionella Species 0.000 abstract description 7
- 239000000443 aerosol Substances 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 5
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 3
- 208000007764 Legionnaires' Disease Diseases 0.000 abstract description 2
- 238000010828 elution Methods 0.000 abstract description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 36
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 23
- 150000002500 ions Chemical class 0.000 description 15
- 239000007864 aqueous solution Substances 0.000 description 14
- 229910052709 silver Inorganic materials 0.000 description 14
- 239000004332 silver Substances 0.000 description 14
- 238000005342 ion exchange Methods 0.000 description 12
- 239000002002 slurry Substances 0.000 description 12
- 229910021645 metal ion Inorganic materials 0.000 description 9
- 239000010457 zeolite Substances 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000002070 germicidal effect Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 208000001388 Opportunistic Infections Diseases 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- GBBZLMLLFVFKJM-UHFFFAOYSA-N 1,2-diiodoethane Chemical compound ICCI GBBZLMLLFVFKJM-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 241000006479 Cyme 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
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052675 erionite Inorganic materials 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- HAAYBYDROVFKPU-UHFFFAOYSA-N silver;azane;nitrate Chemical compound N.N.[Ag+].[O-][N+]([O-])=O HAAYBYDROVFKPU-UHFFFAOYSA-N 0.000 description 1
- 229910052665 sodalite Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は殺菌性薬剤を含有する無機担体を耐水性ポリマ
ーに分散し成型した殺菌材に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sterilizing material in which an inorganic carrier containing a sterilizing agent is dispersed in a water-resistant polymer and molded.
従来、冷却塔の水系の殺菌には、紫外線ランプを用いる
方法(特開昭62−201689号他)や塩素糸薬剤、
第四アンモニウム化合物を用いる方法(特開昭60〜5
8905号、特開昭51−16703号他)が開示され
ているが、発生したエリゾール中に存在する耐性の強い
微生物にすする殺菌力は充分とは言えなかった・
〔発明が解決しようとする課題〕
冷却塔環エロゾールが発生する水系処理装置の水では微
細藻類、原生動物、従属栄養細菌、レジオネラ属細菌な
どが多く繁殖する。これらの微生物は体力の低下してい
る人に日和見感染により種々の感染症をもたらす恐れが
あった。Conventionally, methods using ultraviolet lamps (JP-A No. 62-201689, etc.), chlorine thread chemicals,
Method using quaternary ammonium compounds (JP-A-60-5
No. 8905, JP-A-51-16703, etc.), but the bactericidal power against highly resistant microorganisms present in the generated Erysol was not sufficient. Issue] Microalgae, protozoa, heterotrophic bacteria, Legionella bacteria, etc. breed in large numbers in water from water treatment equipment that generates cooling tower ring aerosols. These microorganisms pose a risk of causing various infectious diseases through opportunistic infections in people with decreased physical strength.
特にレジオネラ属細菌は1976年米国在郷軍人会での
集団発病を契機にエロゾール発生源である冷却塔、高架
水槽、貯湯タンクに存在が確認され、薬剤に対しても強
い耐性を有し″ていることが分かりている。これら日和
見感染を起こすエリゾール中の微生物の防除対策が指摘
されている。In particular, bacteria of the genus Legionella was confirmed to exist in cooling towers, elevated water tanks, and hot water storage tanks, which are sources of aerosols, after a mass outbreak occurred at the American Veterans Association in 1976, and they are highly resistant to chemicals. Countermeasures have been suggested to control the microorganisms in Erysol that cause these opportunistic infections.
しかしこれまでの殺菌方法のうち、紫外線照射による方
法では装置が非常に大規模なものになり、さらにメンテ
ナンスが繁雑でそのためのコストも真人である欠点があ
り、実用化には至っていない。However, among the conventional sterilization methods, methods using ultraviolet irradiation require very large-scale equipment, are complicated to maintain, and are costly, so they have not been put into practical use.
また塩素系薬剤、第四アンモニウム化合物を用いる方法
は人体に対する安全性や殺菌効果の持続性の点で不充分
であった。Furthermore, methods using chlorine-based chemicals and quaternary ammonium compounds are insufficient in terms of safety for the human body and sustainability of the bactericidal effect.
本発明は以上のような点に鑑みてなされたもので、その
目的とするところは、水に対して簡易な方法で適用でき
、しかも適用状態では安定した殺菌力が長期開示され、
その上、水に対する溶出も僅少にできるようにした冷却
塔用殺菌材を提供することである。The present invention has been made in view of the above points, and its purpose is to provide a method that can be applied to water in a simple manner, and that exhibits stable bactericidal activity over a long period of time in the applied state.
Furthermore, it is an object of the present invention to provide a sterilizing material for cooling towers that can be slightly leached into water.
上記目的を達成する為に、本願発明の冷却塔用殺菌材は
、殺菌性薬剤を含有する無機担体を耐水性ポリマーに分
散し成型したものである。In order to achieve the above object, the sterilizing material for cooling towers of the present invention is obtained by dispersing an inorganic carrier containing a sterilizing agent in a water-resistant polymer and molding the same.
以下本発明について説明する。The present invention will be explained below.
本発明において、殺菌性薬剤としては例えば、銀、銅、
亜鉛、水銀、鉛、すす、ビスマス、カドミウム又はタリ
ウム等の金属のイオン及びその化合物や安定化塩素、次
亜塩素酸塩、クロラミン、ヨウ化エチレン等のハロゲン
化合物やアルコール類、フェノール類、エーテル類、グ
アニジン類、チアゾール類、第四級アンモニウム塩、チ
オカーバメイ日り界面活性剤等の有機化合物を挙げるこ
とができ、好ましくはレジオネラ属細菌に対する殺菌力
が強(、人体に対して安全である点から銀、銅のイオン
又はその化合物が適当である。In the present invention, examples of the bactericidal agent include silver, copper,
Metal ions and their compounds such as zinc, mercury, lead, soot, bismuth, cadmium, or thallium; halogen compounds such as stabilized chlorine, hypochlorite, chloramine, and ethylene iodide; alcohols; phenols; and ethers. , guanidines, thiazoles, quaternary ammonium salts, thiocarbamay surfactants, and other organic compounds, preferably those with strong bactericidal activity against Legionella bacteria (from the viewpoint of being safe for the human body). Silver, copper ions or compounds thereof are suitable.
本発明において無機担体は殺菌性薬剤を吸着、結合、イ
オン交換などによって担持し、殺菌性薬剤が水に溶解、
分解せずに安定して殺菌力を発揮しうる目的で用いる。In the present invention, the inorganic carrier supports the bactericidal drug by adsorption, binding, ion exchange, etc., and the bactericidal drug is dissolved in water.
It is used for the purpose of stably exhibiting sterilizing power without decomposition.
無機担体としてはシルカゲル、アルミナ、結晶性アルミ
ノケイ酸塩(合成あるいは天然)、無定形アルミノケイ
酸塩、活性白土、セピアライト、粘土物質、活性炭、各
種層状物質等を挙げることができるが、多孔質で比表面
積が大きく殺菌性薬剤を多く担持できるという点から結
晶性アルミノケイ酸塩(ゼオライト)、無定形アルミノ
ケイ酸塩(以下これをAASと言う)及び活性炭が好ま
しい。Examples of inorganic carriers include silica gel, alumina, crystalline aluminosilicate (synthetic or natural), amorphous aluminosilicate, activated clay, sepialite, clay materials, activated carbon, and various layered materials. Crystalline aluminosilicate (zeolite), amorphous aluminosilicate (hereinafter referred to as AAS), and activated carbon are preferred because they have a large specific surface area and can support a large amount of bactericidal agents.
本発明において「ゼオライト」としては、天然ゼオライ
ト及び合成ゼオライトのいずれも用いることができる。In the present invention, as the "zeolite", both natural zeolite and synthetic zeolite can be used.
ゼオライトは、一般に三次元骨格構造を有するアルミノ
ケイ酸塩であり、一般式としてXM*/no−Al10
3 ・YSiOt ・ZHiOで表示される。Zeolites are generally aluminosilicates with a three-dimensional skeleton structure, and have the general formula XM*/no-Al10
3 Displayed as ・YSiOt ・ZHiO.
ここでMはイオン交換可能なイオンを表し通常はl又は
2価の金属のイオンである。nは(金属)イオンの原子
価である。X及びYはそれぞれの金属酸化物、シリカ係
数、Zは結晶水の数を表示している。ゼオライトの具体
的例としては例えば、八−型ゼオライド、X−型ゼオラ
イド、Y−型ゼオライド、T−型ゼオライド、高シリカ
ゼオライト、ソーダライト、モルデナイト、アナルサイ
ム、クリノプチロライト、チャバサイト、エリオナイト
等を挙げることができる。ただしこれらに限定されるも
のではない、これら例示ゼオライトのイオン交換容量は
、八−型ゼオライド7aeq/g、X−型ゼオライド6
.4meq/g、 Y−型ゼオライド5meq/g。Here, M represents an ion exchangeable ion and is usually an ion of l or a divalent metal. n is the valence of the (metal) ion. X and Y represent the respective metal oxide and silica coefficients, and Z represents the number of crystal water. Specific examples of zeolites include 8-type zeolide, etc. can be mentioned. However, the ion exchange capacity of these exemplary zeolites is not limited to these: 8-type zeolide 7 aeq/g, X-type zeolide 6 aeq/g.
.. 4 meq/g, Y-type zeolide 5 meq/g.
T−型ゼオライド3.4+seq/g、ソーダライト1
1 、5seq/g 、モルデナイト2.6meq/g
、アナルサイム5meqへ、クリノプチロライト2.6
meq/g、チャバサイト5aeq1g、エリオナイト
3.8meQ/gであり、し)ずれも銀イオン、銅イオ
ンでイオン交換するに十分の容量を有している。T-type zeolide 3.4+seq/g, sodalite 1
1, 5seq/g, mordenite 2.6meq/g
, to Anal Cyme 5meq, Clinoptilolite 2.6
meq/g, 5 aeq/g for chabasite, and 3.8 meQ/g for erionite, and both have sufficient capacity for ion exchange with silver ions and copper ions.
本発明においては、無定形アルミノケイ酸塩中のイオン
−交換可能なイオンの一部または全部を上記の殺菌力を
有する金属イオンで置換した殺菌性アルミノケイ酸塩と
して用いることができる。ここで原料として用いるAA
S(無定形アルミノケイ酸塩)は、特に制限なく、従来
から知られているものをそのまま用いることができる。In the present invention, it can be used as a bactericidal aluminosilicate in which some or all of the ion-exchangeable ions in the amorphous aluminosilicate are replaced with the above-mentioned metal ions having bactericidal activity. AA used as raw material here
S (amorphous aluminosilicate) is not particularly limited, and conventionally known ones can be used as they are.
AASは一般に組成式XM!0・八1ids ’ys
iog ・zHtOで表示され、ここでMは一般にア
ルカリ金属元素(例えばナトリウム、カリウム等)であ
る、またx、y、2はそれぞれ金属酸化物、シリカ、結
晶水のモル比率を示している。AASはゼオライトと称
されている結晶性アルミノケイ酸塩と異なり、X線回折
分析でも回折パターンが現れない非晶質の物質であり、
その合成工程にて数10人の掻く微細なゼオライド結晶
が生成し、その表面に510m・AItoz・LOなど
が複雑に組合された非晶質物質が付着した構造と考えら
れている。AASの製造は一般にアルカリ金属溶液を所
定の濃度で60℃以下の低温度域で反応させ、結晶化が
進行する前に水洗して製造される。製造法としては例え
ば特公昭52−58099号、特開昭55−16241
8号などに記載された方法がある。AAS generally has the composition formula XM! 0.81ids'ys
iog .zHtO, where M is generally an alkali metal element (eg, sodium, potassium, etc.), and x, y, and 2 indicate the molar proportions of metal oxide, silica, and water of crystallization, respectively. AAS is an amorphous substance that does not show a diffraction pattern even in X-ray diffraction analysis, unlike crystalline aluminosilicate called zeolite.
It is thought that the structure is such that several tens of minute zeolide crystals are produced in the synthesis process, and an amorphous substance consisting of a complex combination of 510m, AItoz, LO, etc. is attached to the surface of the crystals. AAS is generally produced by reacting an alkali metal solution at a predetermined concentration at a low temperature of 60° C. or lower, and washing with water before crystallization proceeds. As for the manufacturing method, for example, Japanese Patent Publication No. 52-58099, Japanese Patent Publication No. 55-16241
There is a method described in No. 8.
殺菌性金属のうち銀の添加量は0.1〜50%好ましく
は0.5〜5%とすることが優れた殺菌力を示すという
観点から適当である。また銅は0.1〜15%含有する
ことが好ましい。Among the bactericidal metals, it is appropriate to add silver in an amount of 0.1 to 50%, preferably 0.5 to 5%, from the viewpoint of exhibiting excellent bactericidal activity. Moreover, it is preferable that copper is contained in an amount of 0.1 to 15%.
上記抗菌性AASは例えば以下の(1)及び(2)の方
法により製造することができる。The antibacterial AAS can be produced, for example, by the following methods (1) and (2).
(1) M、O(Mはアルカリ金属である)含有率が
好ましくは10%以下の無定形アルミノケイ酸塩と殺菌
性金属イオンとを接触させて、無定形アルミノケイ酸塩
中のイオン交換可能なイオンと殺菌性金属イオンとを交
換することにより殺菌性AASを製造することができる
。(1) Contacting an amorphous aluminosilicate with an M, O (M is an alkali metal) content of preferably 10% or less and a bactericidal metal ion allows for ion exchange in the amorphous aluminosilicate. Germicidal AAS can be produced by exchanging ions with biocidal metal ions.
(2)無定形アルミノケイ酸塩スラリーのpHを好まし
くは6以下に!11整し、次いで該スラリー中の無定形
フルミノケイ酸塩と殺菌性金属イオンとを接触させて、
無定形アルミノケイ酸塩中のイオン交換可能なイオンと
殺菌性金属イオンとを交換することにより殺菌性AAS
を製造することができる。(2) Preferably the pH of the amorphous aluminosilicate slurry is 6 or less! 11, and then bringing the amorphous fluminosilicate in the slurry into contact with bactericidal metal ions,
bactericidal AAS by exchanging ion-exchangeable ions in amorphous aluminosilicate with bactericidal metal ions.
can be manufactured.
(1)の方法において無定形アルミノケイ酸塩(AAs
)、としてMho含有率が好ましくは、10%以下のも
のを用いる0通常の方法で得られるAASは10%を越
えるhOを含有する。そこで前記方法により得られたA
ASを例えば水に懸濁させ、次いで得られたスラリーを
撹拌しながら酸水溶液を滴下することによりAAS中の
アルカリ金属及び/又はアルカリ土類金属を中和するこ
とによりH2O含有率を10%以下に調整することがで
きる。酸水溶液としてQ、 IN以下の濃度の希酸水溶
液を用い、攪拌条件及び反応規模によっても異なるが滴
下速度100■1/30分以下で行うことが好ましい。In method (1), amorphous aluminosilicate (AAs)
), the Mho content is preferably 10% or less. AAS obtained by conventional methods contains more than 10% hO. Therefore, A obtained by the above method
For example, AS is suspended in water, and then an aqueous acid solution is added dropwise to the resulting slurry while stirring to neutralize the alkali metals and/or alkaline earth metals in AAS, thereby reducing the H2O content to 10% or less. can be adjusted to It is preferable to use a dilute acid aqueous solution having a concentration of Q, IN or less as the acid aqueous solution, and to carry out the dropwise addition at a rate of 100 mm or less, although this will vary depending on the stirring conditions and reaction scale.
さらに中和は、スラリーの9Hが3〜6、好ましくは4
〜5の範囲にすることが好ましい、又、中和に使用でき
る酸としては硝酸、゛硫酸、過塩素酸、リン酸、塩酸な
どの無機酸及びギ酸、酢酸、シュウ酸、クエン酸などの
有機酸等が挙げられる。Furthermore, neutralization is performed so that the 9H of the slurry is 3 to 6, preferably 4.
Acids that can be used for neutralization include inorganic acids such as nitric acid, sulfuric acid, perchloric acid, phosphoric acid, and hydrochloric acid, and organic acids such as formic acid, acetic acid, oxalic acid, and citric acid. Examples include acids.
中和して得られたM!0含有率lO%以下のAASは濾
過し、水洗し、スラリーとしてそのまま(1)の方法に
用いることもできるし、或いは乾燥してLO含有率10
%以下のAASとしてもよい、(1)の方法において好
ましくは、MzO含有率10%以下のAASのスラリー
と抗菌性金属イオン含有水溶液とを混合して銀イオン、
銅イオンの殺菌性金属イオンを含有する混合水溶液にA
ASを接触させて、AAS中のイオン交換可能なイオン
と上記イオンとを置換させる。接触は、5〜70℃、好
ましくは40〜60℃で1〜24時間、好ましくは10
〜24時間バッチ式又は連続式(例えばカラム法)によ
って行うことができる。M obtained by neutralization! AAS with an LO content of 10% or less can be filtered, washed with water, and used as a slurry in the method (1) as it is, or dried to have an LO content of 10%.
% or less of AAS, preferably in method (1), a slurry of AAS with an MzO content of 10% or less and an aqueous solution containing antibacterial metal ions are mixed to form silver ions,
A to a mixed aqueous solution containing bactericidal metal ions such as copper ions.
The AS is contacted to replace the ion-exchangeable ions in the AAS with the ions. Contacting is carried out at 5-70°C, preferably 40-60°C for 1-24 hours, preferably 10
It can be carried out batchwise or continuously (e.g. column method) for up to 24 hours.
混合水溶液中の各イオンは、通常いずれも塩として供給
される。用いられる塩は、例えば銀イオンはジアンミン
銀硝酸塩、ジアンミン銀硫酸塩等、銅イオンは硝#w4
(n) 、過塩素酸鋼、酢酸銅、テトラシアノ銅酸カリ
ウム、硫#I銅等を用いることができる。Each ion in the mixed aqueous solution is usually supplied as a salt. The salts used include, for example, silver ions such as diammine silver nitrate and diammine silver sulfate, and copper ions such as nitrate #w4.
(n), perchlorate steel, copper acetate, potassium tetracyanocuprate, #I copper sulfate, etc. can be used.
AAS中の銀イオン等の含有量は前記混合水溶液中の各
イオン(塩)濃度を調節することによって、適宜制御す
ることができる0例えば抗菌性AAsが銀イオンを含有
する場合、前記混合水溶液中の銀イオン濃度を0.00
2M/ J 〜3.0M/ jとすることによって、適
宜銀イオン含有量0.1〜50%の抗菌性AASを得る
ことができる。又、抗菌性AASが銅イオンを含有する
場合、銅イオン濃度はQ、005M71〜5.0M/
ffiとすることによって、適宜銅イオン含有量0.1
−15%の抗菌性AASを得ることができる。The content of silver ions, etc. in AAS can be appropriately controlled by adjusting the concentration of each ion (salt) in the mixed aqueous solution.For example, if the antibacterial AAs contains silver ions, the content of silver ions in the mixed aqueous solution The silver ion concentration is 0.00
By setting it as 2M/J to 3.0M/j, antibacterial AAS with a silver ion content of 0.1 to 50% can be obtained as appropriate. In addition, when the antibacterial AAS contains copper ions, the copper ion concentration is Q, 005M71 ~ 5.0M/
By setting ffi, the copper ion content can be adjusted to 0.1 as appropriate.
-15% antibacterial AAS can be obtained.
前記の如き混合水溶液以外に各イオンを単独で含有する
水溶液を用い、各水溶液とAASとを逐次接触させるこ
とによって、イオン交換することもできる。各水溶液中
の各イオンの濃度は、前記混合水溶液中の各イオン濃度
に準じて定めることができる。In addition to the mixed aqueous solution as described above, ion exchange can also be carried out by using an aqueous solution containing each ion individually and bringing each aqueous solution into contact with AAS sequentially. The concentration of each ion in each aqueous solution can be determined according to the concentration of each ion in the mixed aqueous solution.
またイオン交換の際に銀、銅イオンを安定させる目的で
アンモニウムイオン又はメチルアミン等のアミンイオン
を混合溶液中に加えて反応させることができる。Further, in order to stabilize silver and copper ions during ion exchange, ammonium ions or amine ions such as methylamine can be added to the mixed solution and reacted.
イオン交換が終了したAASは、充分に水洗した後、乾
燥する。乾燥は常圧で105℃〜115℃又は減圧(1
〜30Torr)で行うことが好ましい。After ion exchange, the AAS is thoroughly washed with water and then dried. Drying is carried out at 105°C to 115°C under normal pressure or under reduced pressure (1
~30 Torr) is preferable.
一方(2)の方法は、常法により得られたAASのスラ
リーのpHを6以下、好ましくは3〜6、より好ましく
は4〜5に調整して、AAS中のhO含有率を10%以
下にすることができる。該pHの調整は前記(1)の方
法において例示した方法を同様に用いることができる。On the other hand, in method (2), the pH of the AAS slurry obtained by a conventional method is adjusted to 6 or less, preferably 3 to 6, more preferably 4 to 5, and the hO content in AAS is 10% or less. It can be done. For adjusting the pH, the method exemplified in the method (1) above can be used similarly.
次いでpHを調整したスラリーと抗菌性金属イオン含有
溶液とを混合して、該スラリー中のAASをイオン交換
することができる。イオン交換法等は(1)の方法と同
様の方法をそのまま使用することができる。The pH-adjusted slurry can then be mixed with an antibacterial metal ion-containing solution to ion-exchange the AAS in the slurry. As the ion exchange method, a method similar to method (1) can be used as is.
本発明において活性炭の表面に銀及び銅の化合物を処理
し同化合物を付着させて殺菌性、無機担体として用いる
ことができる。ここで原料として用いる活性炭は、特に
制限はなく、従来から知られているものをそのまま用い
ることができる。In the present invention, activated carbon can be used as a bactericidal and inorganic carrier by treating the surface of the activated carbon with silver and copper compounds so that the compounds adhere thereto. The activated carbon used as a raw material here is not particularly limited, and any conventionally known activated carbon can be used as is.
上記無機担体は粉末状に調製したものを用いる。The above-mentioned inorganic carrier is prepared in powder form.
その粒子径は耐水性ポリマーによ(分散させる観点より
0.05〜10μ曽、好ましくは0.1〜3μ−とする
のが適当である。また同無機担体の比表面積は500
rd /g以上、好ましくは700 rd /g以上と
することが殺菌性薬剤を多く含有することができる点よ
り適当である。The particle size is determined by the water-resistant polymer (from the viewpoint of dispersion, it is appropriate to set it to 0.05 to 10μ, preferably 0.1 to 3μ).The specific surface area of the inorganic carrier is 500μ.
rd /g or more, preferably 700 rd /g or more is suitable since it allows a large amount of bactericidal agent to be contained.
本発明において殺菌性薬剤を含有する無機担体を耐水性
ポリマーに分散させ、成型することは、ポリマー表面に
露出した殺菌性薬剤の接触殺菌により、殺菌性薬剤が溶
出しにり(゛(溶出量が0.1pp−以下) さらに
安定した殺菌力が長時間持続することが可能となる。In the present invention, by dispersing an inorganic carrier containing a bactericidal agent in a water-resistant polymer and molding it, the bactericidal agent is eluted by contact sterilization of the bactericidal agent exposed on the polymer surface. (0.1 pp- or less) Furthermore, stable sterilizing power can be maintained for a long time.
耐水性ポリマーとは疎水性を有する化合物の高分子体よ
り構成されているもので、例えばポリプロピレン、ポリ
アミド、ポリエチレン、ポリウレタン、メラミン樹脂、
エポキシ樹脂、ABS樹脂を挙げることができる。Water-resistant polymers are composed of polymers of hydrophobic compounds, such as polypropylene, polyamide, polyethylene, polyurethane, melamine resin,
Examples include epoxy resin and ABS resin.
殺菌性薬剤を含有する無機担体を耐水性ポリマーに分散
させる方法としては、一般に顔料、充填剤等の無機質粉
体をポリマーに分散させる方法の常法で用いられる多く
の方法が適用できる。As a method for dispersing an inorganic carrier containing a bactericidal agent in a water-resistant polymer, many methods commonly used for dispersing inorganic powders such as pigments and fillers in polymers can be applied.
殺菌性薬剤を含有する無機担体の耐水性ポリマーに対す
る含有量は耐水性ポリマー100重量部に対して20〜
90重量部、好ましくは40〜60重量部とすることが
殺菌力の観点から適当である。The content of the inorganic carrier containing the bactericidal agent in the water-resistant polymer is 20 to 100 parts by weight of the water-resistant polymer.
From the viewpoint of bactericidal activity, it is appropriate to use 90 parts by weight, preferably 40 to 60 parts by weight.
殺菌性薬剤を含有する無機担体を耐水性ポリマーに分散
した樹脂組成物を冷却塔用殺菌材として成型する方法と
しては押出し成型、射出成型、圧延成型、ブロー成型等
常法で用いられる多くの方法が適用できる。成型品の表
面積は含有されている殺菌性薬剤が多く表面に出て殺菌
力を有効に発揮させる観点より0.1of/g以上、好
ましくはlrd/8以上とするのが適当である。この様
な表面積を有する成型品の成型方法としては非独立性発
泡成型法、ハニカム形成型法やカゴ形成型法等がある。There are many conventional methods for molding a resin composition in which an inorganic carrier containing a sterilizing agent is dispersed in a water-resistant polymer as a sterilizing material for cooling towers, such as extrusion molding, injection molding, rolling molding, and blow molding. is applicable. It is appropriate that the surface area of the molded product is 0.1 of/g or more, preferably lrd/8 or more, from the viewpoint that a large amount of the bactericidal agent contained therein comes out to the surface and effectively exerts its bactericidal power. Molding methods for molded articles having such a surface area include non-independent foam molding, honeycomb molding, cage molding, and the like.
本発明の冷却塔用殺菌材の成型時に添加剤として顔料、
充填剤、帯電防止剤、分散剤、界面活性剤等をさらに加
えることができる。Pigments as additives during molding of the sterilizing material for cooling towers of the present invention,
Fillers, antistatic agents, dispersants, surfactants, etc. can further be added.
本発明の冷却塔用殺菌材は、エロゾールの発生する水系
処理装置の水に繁殖するレジオネラ属細菌等の日和見感
染症を引き起こす種々の微生物に対する殺菌性にすぐれ
、さらには防藻性に優れており、エロゾールの発生しや
すい一般ビル、ホテル、集合住宅、病院などの冷却塔、
高架水槽、貯湯タンク等をはじめプール、加湿器、冷風
扇、トイレ水タンク、スチーム付電気ストーブの水タン
ク、金属加工油、水性塗料等水系エマルジョン等一般の
水系処理装置にも用いることができるが、これらに限定
されるものではない。The sterilizing material for cooling towers of the present invention has excellent sterilizing properties against various microorganisms that cause opportunistic infections such as Legionella bacteria that breed in the water of aqueous treatment equipment that generates aerosols, and also has excellent algae-proofing properties. , cooling towers in general buildings, hotels, apartment complexes, hospitals, etc. where aerosols are likely to be generated;
Can be used for general water-based treatment equipment such as elevated water tanks, hot water storage tanks, pools, humidifiers, cold air fans, toilet water tanks, water tanks for electric heaters with steam, metal processing oil, water-based paints, water-based emulsions, etc. , but not limited to these.
(発明の効果〕
本発明の冷却塔用殺菌材は、エロゾールの発生する水系
処理装置の水の殺菌において、ポリマー表面に露出した
部分の接触殺菌により、殺菌性薬剤が溶出しないにもか
かわらず、安定殺菌力を有する効果がある。(Effects of the Invention) The sterilizing material for cooling towers of the present invention is effective in sterilizing water in aqueous treatment equipment where aerosols are generated, even though the sterilizing agent does not elute due to contact sterilization of the portion exposed to the polymer surface. It has a stable bactericidal effect.
以下本発明を実施例によりさらに詳細に説明する。 The present invention will be explained in more detail below using examples.
参考例1 (殺菌性アルミノケイ酸塩の調製)アルミノ
ケイ酸塩は市販のA−型ゼオライド(NaxO・^It
(h ’ 1.95ift ・X LO:平均粒径1
.5 、us)、市販のY−型ゼオライド(1,I N
atO^120.・4.I SiO□・×H1O:平均
粒径0.7μm)及び特開昭55〜162418号に従
って調製した無定形アルミノケイ酸塩(1,04Na1
O・AltOz ’2.36S(Ox・XHlOn平
均粒径0.8 μm)の3種類を使用した。Reference Example 1 (Preparation of bactericidal aluminosilicate) Aluminosilicate is a commercially available A-type zeolide (NaxO・^It
(h' 1.95ift ・X LO: Average particle size 1
.. 5, us), commercially available Y-type zeolide (1, IN
atO^120.・4. I SiO
Three types of O.AltOz '2.36S (Ox.XHlOn average particle size 0.8 μm) were used.
イオン交換の為の各イオンを提供するための塩としてN
H,NO,、AgN0z 、Cu(NOs)x ・3H
!Oの3種類を使用した0表−1に各サンプル調製時に
使用したゼオライトの種類と混合水溶液に含まれる塩の
種類及び濃度を示した。 No、l〜No、6の6種類
の殺菌性アルミノケイ酸塩のサンプルを得た。N as a salt to provide each ion for ion exchange
H,NO,,AgN0z,Cu(NOs)x ・3H
! Table 1 shows the type of zeolite used in preparing each sample and the type and concentration of salt contained in the mixed aqueous solution. Six types of bactericidal aluminosilicate samples No. 1 to No. 6 were obtained.
各サンプルとも、110℃で加熱乾燥した粉末1kgに
水を加えて1.31のスラリーとし、その後攪拌して脱
気し、さらに適量の0.5N硝酸溶液と水を加えてpH
を5〜7に調整し、全容を1.81のスラリーとした0
次にイオン交換の為、所定濃度の所定の塩の混合水溶ン
&3j!を加えて全容を4.81とし、このスラリー液
を40〜60℃に保持し10〜48時間攪拌しつつ平衡
状態に到達させた状態に保持した。イオン交換終了後ア
ルミノケイ酸塩相を濾過し室温の水または温水でアルミ
ノケイ酸塩相中の過剰の銀イオン又は銅イオンがな(な
る迄水洗した0次にサンプルを110℃で加熱乾燥し、
6種類のサン、プルを得た。得られたNo、1xNo、
6の抗菌性アルミノケイ酸塩サンプルに関するデータを
表1に示す。For each sample, water was added to 1 kg of powder that had been heat-dried at 110°C to make a slurry of 1.31, which was then stirred and degassed, and an appropriate amount of 0.5N nitric acid solution and water were added to adjust the pH.
was adjusted to 5 to 7 to make the entire slurry 1.81.
Next, for ion exchange, mix aqueous solution of a specified salt at a specified concentration & 3j! was added to bring the total volume to 4.81, and the slurry liquid was maintained at 40 to 60°C and stirred for 10 to 48 hours to reach an equilibrium state. After ion exchange, the aluminosilicate phase was filtered and washed with water at room temperature or hot water until the excess silver or copper ions in the aluminosilicate phase were removed.Next, the sample was heated and dried at 110°C.
Six types of samples and pulls were obtained. Obtained No, 1xNo,
Data for the No. 6 antimicrobial aluminosilicate samples are shown in Table 1.
参考例2(殺菌性活性炭の調製)
硝#1180gを水3(lに溶解させ、これにヤシ殻粉
末活性炭(粒子径29μm)IQKgをよく混和し、1
20℃で乾燥した0次いで水50kに塩化ナトリウムを
溶解し、この液に先の活性炭を加えよく撹拌した1ji
濾過し、濾布上の活性炭を水約100j!で洗浄した後
、120℃で乾燥し、塩化銀添着活性炭9゜7Kgを得
た。塩化銀は0.67%含有していた。Reference Example 2 (Preparation of bactericidal activated carbon) Dissolve 1180 g of #1 in 3 (l) of water, thoroughly mix IQKg of coconut shell powder activated carbon (particle size 29 μm),
After drying at 20℃, sodium chloride was dissolved in 50k of water, and the activated carbon was added to this solution and stirred well.
Filter the activated carbon on the filter cloth to about 100J of water! After washing with water and drying at 120°C, 9.7 kg of silver chloride-impregnated activated carbon was obtained. Silver chloride was contained at 0.67%.
実施例(殺菌材の製造)
耐水性ポリマー100重量部に対して参考例で調製した
殺菌性アルミノケイ酸塩及び殺菌性活性炭を所定量加え
、加熱しながら二軸式マスターチップ押出成型機にてφ
2−1長さ4nのチップ成型体を製造した。Example (manufacture of germicidal material) A predetermined amount of germicidal aluminosilicate and germicidal activated carbon prepared in the reference example was added to 100 parts by weight of a water-resistant polymer, and the mixture was heated to φ in a twin-screw master chip extrusion molding machine.
2-1 A chip molded body having a length of 4n was manufactured.
チップ成型体を更に発泡剤として炭酸アンモニウムを用
いて発泡成型体(20X20X40m)と、孔2鶴角の
ハニカム成型体(φ25X40am)も製造した。A foam molded body (20 x 20 x 40 m) and a honeycomb molded body (φ25 x 40 am) with two square holes were also manufactured using ammonium carbonate as a foaming agent.
得られたNo、A−Mの13種類の殺菌材のデータを表
−2に示す。Table 2 shows the data of the 13 types of sterilizing materials No., A-M.
試験例1 (殺菌力テスト)
実施例で得られた各種形状の殺菌材及び参考例で得た殺
菌性アルミノケイ酸塩粉末及び殺菌性活性炭の一部を1
0Kgを総水!2001、流速601/分の空調機の冷
却塔の循環水の出口部分にカラムに充填し設置した。経
過日数における一般細菌数とレジオネラ属細菌数を測定
することによって、各々の殺菌力を評価した。結果を表
−3に示す、なお実験前の一般細菌数、レジオネラ属細
菌数はそれぞれ10”個ノー1 、10’個/ml で
あった。Test Example 1 (Bactericidal power test) A portion of the bactericidal materials of various shapes obtained in the Examples and the bactericidal aluminosilicate powder and bactericidal activated carbon obtained in the Reference Examples were
0Kg total water! In 2001, a column was filled and installed at the outlet of circulating water of a cooling tower of an air conditioner with a flow rate of 601/min. The bactericidal power of each was evaluated by measuring the number of general bacteria and the number of Legionella bacteria over the number of days that had passed. The results are shown in Table 3. The number of general bacteria and the number of Legionella bacteria before the experiment were 10'' and 10'' per ml, respectively.
試験例2 (溶出テスト)
実施例で得た殺菌材及び参考例で得た殺菌性アルミノケ
イ酸塩粉末及び殺菌性活性炭をそれぞれ純水5.91に
入れ、攪拌機ニ”i’ 50rpm テ10.100及
び500時間攪拌した。その上澄み溶液について溶出し
た銀及び銅量を原子吸光法にて測定し、殺菌性金属の溶
出量を評価した。結果を表−4に示−2暮
旧瞥暮Test Example 2 (Elution Test) The bactericidal material obtained in the example and the bactericidal aluminosilicate powder and bactericidal activated carbon obtained in the reference example were respectively placed in pure water 5.91 liters and stirred with a stirrer 50 rpm and 10.100 ml. and stirred for 500 hours.The amounts of silver and copper eluted from the supernatant solution were measured by atomic absorption spectrometry to evaluate the amount of bactericidal metals eluted.The results are shown in Table 4.
Claims (1)
分散し成型したことを特徴とする冷却塔用殺菌材。 2、耐水性ポリマーがポリプロピレン、ポリアミド、ポ
リエチレン、ポリウレタン、メラミン樹脂、エポキシ樹
脂又は、ABS樹脂である請求項1記載の冷却塔用殺菌
材。 3、殺菌性薬剤を含有する無機担体が耐水性ポリマー1
00重量部に対して20〜90重量部含有された請求項
1記載の冷却塔用殺菌材。[Claims] 1. A sterilizing material for cooling towers, characterized in that an inorganic carrier containing a sterilizing agent is dispersed in a water-resistant polymer and molded. 2. The sterilizing material for cooling towers according to claim 1, wherein the water-resistant polymer is polypropylene, polyamide, polyethylene, polyurethane, melamine resin, epoxy resin, or ABS resin. 3. The inorganic carrier containing the bactericidal agent is a water-resistant polymer 1
The sterilizing material for cooling towers according to claim 1, which is contained in an amount of 20 to 90 parts by weight based on 00 parts by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7282089A JPH02251292A (en) | 1989-03-24 | 1989-03-24 | Sterilizing material for cooling tower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7282089A JPH02251292A (en) | 1989-03-24 | 1989-03-24 | Sterilizing material for cooling tower |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02251292A true JPH02251292A (en) | 1990-10-09 |
JPH0512038B2 JPH0512038B2 (en) | 1993-02-17 |
Family
ID=13500435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7282089A Granted JPH02251292A (en) | 1989-03-24 | 1989-03-24 | Sterilizing material for cooling tower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02251292A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02292201A (en) * | 1989-05-02 | 1990-12-03 | Yoshio Ichikawa | Antibacterial silica gel and antibacterial resin |
CN1329317C (en) * | 2004-12-23 | 2007-08-01 | 宁波大学 | High molecular water softener, synthetic method and application |
GB2464706A (en) * | 2008-10-22 | 2010-04-28 | Peter Greening | Antibacterial composition |
JP2013501018A (en) * | 2009-08-03 | 2013-01-10 | ディーエスエム アイピー アセッツ ビー.ブイ. | Antibacterial material for sterilizing water |
JP2013056833A (en) * | 2011-09-07 | 2013-03-28 | Toagosei Co Ltd | Antimicrobial treatment material for water treatment and water treatment method |
WO2020137612A1 (en) * | 2018-12-28 | 2020-07-02 | 富士フイルム株式会社 | Composition, film, film-coated substrate, method for producing film-coated substrate, spray, wet wiper, and antibacterial particles |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5589336A (en) * | 1978-12-27 | 1980-07-05 | Miyoshi Oil & Fat Co Ltd | Porous plastic with bactericidal activity |
JPS6099389A (en) * | 1983-11-02 | 1985-06-03 | Daizo Morita | Purifying material of potable water |
JPS60232288A (en) * | 1984-05-01 | 1985-11-18 | Mitsubishi Rayon Co Ltd | Sterilization material for water treatment |
JPS6172099A (en) * | 1984-09-18 | 1986-04-14 | Keiyoo:Kk | Agent for preventing degradation of liquid such as water-soluble metal working fluid, water, etc. |
JPS6320090A (en) * | 1986-07-12 | 1988-01-27 | Asahi Kanko Kk | Water cleaning agent and its production |
JPS63270764A (en) * | 1988-03-18 | 1988-11-08 | Kanebo Ltd | Production of bactericidal polymer molding |
JPH0512038A (en) * | 1991-07-09 | 1993-01-22 | Nec Corp | Cpu queuing time control dispatching system |
-
1989
- 1989-03-24 JP JP7282089A patent/JPH02251292A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5589336A (en) * | 1978-12-27 | 1980-07-05 | Miyoshi Oil & Fat Co Ltd | Porous plastic with bactericidal activity |
JPS6099389A (en) * | 1983-11-02 | 1985-06-03 | Daizo Morita | Purifying material of potable water |
JPS60232288A (en) * | 1984-05-01 | 1985-11-18 | Mitsubishi Rayon Co Ltd | Sterilization material for water treatment |
JPS6172099A (en) * | 1984-09-18 | 1986-04-14 | Keiyoo:Kk | Agent for preventing degradation of liquid such as water-soluble metal working fluid, water, etc. |
JPS6320090A (en) * | 1986-07-12 | 1988-01-27 | Asahi Kanko Kk | Water cleaning agent and its production |
JPS63270764A (en) * | 1988-03-18 | 1988-11-08 | Kanebo Ltd | Production of bactericidal polymer molding |
JPH0512038A (en) * | 1991-07-09 | 1993-01-22 | Nec Corp | Cpu queuing time control dispatching system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02292201A (en) * | 1989-05-02 | 1990-12-03 | Yoshio Ichikawa | Antibacterial silica gel and antibacterial resin |
CN1329317C (en) * | 2004-12-23 | 2007-08-01 | 宁波大学 | High molecular water softener, synthetic method and application |
GB2464706A (en) * | 2008-10-22 | 2010-04-28 | Peter Greening | Antibacterial composition |
JP2013501018A (en) * | 2009-08-03 | 2013-01-10 | ディーエスエム アイピー アセッツ ビー.ブイ. | Antibacterial material for sterilizing water |
JP2013056833A (en) * | 2011-09-07 | 2013-03-28 | Toagosei Co Ltd | Antimicrobial treatment material for water treatment and water treatment method |
WO2020137612A1 (en) * | 2018-12-28 | 2020-07-02 | 富士フイルム株式会社 | Composition, film, film-coated substrate, method for producing film-coated substrate, spray, wet wiper, and antibacterial particles |
Also Published As
Publication number | Publication date |
---|---|
JPH0512038B2 (en) | 1993-02-17 |
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