JP4867930B2 - 水系のレジオネラ菌の殺菌方法 - Google Patents
水系のレジオネラ菌の殺菌方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 24
- 238000004659 sterilization and disinfection Methods 0.000 title claims description 22
- 241000589248 Legionella Species 0.000 title claims description 13
- 239000000460 chlorine Substances 0.000 claims description 92
- 229910052801 chlorine Inorganic materials 0.000 claims description 91
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000001954 sterilising effect Effects 0.000 claims description 25
- -1 sulfamic acid compound Chemical class 0.000 claims description 19
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 17
- 239000007800 oxidant agent Substances 0.000 claims description 13
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 10
- 208000007764 Legionnaires' Disease Diseases 0.000 claims description 7
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 6
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 5
- 239000004155 Chlorine dioxide Substances 0.000 claims description 5
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 5
- 229910001919 chlorite Inorganic materials 0.000 claims description 4
- 229910052619 chlorite group Inorganic materials 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 14
- 239000000498 cooling water Substances 0.000 description 6
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 6
- OGQPUOLFKIMRMF-UHFFFAOYSA-N chlorosulfamic acid Chemical compound OS(=O)(=O)NCl OGQPUOLFKIMRMF-UHFFFAOYSA-N 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 159000000000 sodium salts Chemical class 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- NXTVQNIVUKXOIL-UHFFFAOYSA-N N-chlorotoluene-p-sulfonamide Chemical compound CC1=CC=C(S(=O)(=O)NCl)C=C1 NXTVQNIVUKXOIL-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000010730 cutting oil Substances 0.000 description 2
- CHVZPRDGLWBEMJ-UHFFFAOYSA-N n-chlorobenzenesulfonamide Chemical compound ClNS(=O)(=O)C1=CC=CC=C1 CHVZPRDGLWBEMJ-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 description 1
- YKZAEXPHYBFRHB-UHFFFAOYSA-N 1,3-dichloroimidazolidine-2,4-dione Chemical compound ClN1CC(=O)N(Cl)C1=O YKZAEXPHYBFRHB-UHFFFAOYSA-N 0.000 description 1
- RTQPZPWCYWVQCL-UHFFFAOYSA-N 1-[3-(2-methoxyethoxy)phenyl]piperazine Chemical compound COCCOC1=CC=CC(N2CCNCC2)=C1 RTQPZPWCYWVQCL-UHFFFAOYSA-N 0.000 description 1
- GSDQVZMTWWSMNU-UHFFFAOYSA-N 1-chloroimidazolidine-2,4-dione Chemical compound ClN1CC(=O)NC1=O GSDQVZMTWWSMNU-UHFFFAOYSA-N 0.000 description 1
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- XEYRNOQMDCFKOC-UHFFFAOYSA-N 2-n,2-n-dichloro-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N(Cl)Cl)=N1 XEYRNOQMDCFKOC-UHFFFAOYSA-N 0.000 description 1
- YNAKESQZGPZDDZ-UHFFFAOYSA-N 2-n,2-n-diethylbenzene-1,2-diamine Chemical compound CCN(CC)C1=CC=CC=C1N YNAKESQZGPZDDZ-UHFFFAOYSA-N 0.000 description 1
- KEPNSIARSTUPGS-UHFFFAOYSA-N 2-n,4-n,6-n-trichloro-1,3,5-triazine-2,4,6-triamine Chemical compound ClNC1=NC(NCl)=NC(NCl)=N1 KEPNSIARSTUPGS-UHFFFAOYSA-N 0.000 description 1
- JJKVMNNUINFIRK-UHFFFAOYSA-N 4-amino-n-(4-methoxyphenyl)benzamide Chemical compound C1=CC(OC)=CC=C1NC(=O)C1=CC=C(N)C=C1 JJKVMNNUINFIRK-UHFFFAOYSA-N 0.000 description 1
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- WOHVONCNVLIHKY-UHFFFAOYSA-L [Ba+2].[O-]Cl=O.[O-]Cl=O Chemical compound [Ba+2].[O-]Cl=O.[O-]Cl=O WOHVONCNVLIHKY-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002353 algacidal effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- KHPLPBHMTCTCHA-UHFFFAOYSA-N ammonium chlorate Chemical compound N.OCl(=O)=O KHPLPBHMTCTCHA-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- ISFLYIRWQDJPDR-UHFFFAOYSA-L barium chlorate Chemical compound [Ba+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O ISFLYIRWQDJPDR-UHFFFAOYSA-L 0.000 description 1
- HPEWZLCIOKVLBZ-UHFFFAOYSA-N barium hypochlorite Chemical compound [Ba+2].Cl[O-].Cl[O-] HPEWZLCIOKVLBZ-UHFFFAOYSA-N 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- BEHLMOQXOSLGHN-UHFFFAOYSA-N benzenamine sulfate Chemical compound OS(=O)(=O)NC1=CC=CC=C1 BEHLMOQXOSLGHN-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- YALMXYPQBUJUME-UHFFFAOYSA-L calcium chlorate Chemical compound [Ca+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O YALMXYPQBUJUME-UHFFFAOYSA-L 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- QXIKMJLSPJFYOI-UHFFFAOYSA-L calcium;dichlorite Chemical compound [Ca+2].[O-]Cl=O.[O-]Cl=O QXIKMJLSPJFYOI-UHFFFAOYSA-L 0.000 description 1
- RSIPQRDGPVEGLE-UHFFFAOYSA-L calcium;disulfamate Chemical compound [Ca+2].NS([O-])(=O)=O.NS([O-])(=O)=O RSIPQRDGPVEGLE-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 229940077239 chlorous acid Drugs 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 230000001332 colony forming effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000007973 cyanuric acids Chemical class 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
- YGNOYUCUPMACDT-UHFFFAOYSA-N dimethylsulfamic acid Chemical compound CN(C)S(O)(=O)=O YGNOYUCUPMACDT-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- SQZYOZWYVFYNFV-UHFFFAOYSA-L iron(2+);disulfamate Chemical compound [Fe+2].NS([O-])(=O)=O.NS([O-])(=O)=O SQZYOZWYVFYNFV-UHFFFAOYSA-L 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- MYMDOKBFMTVEGE-UHFFFAOYSA-N methylsulfamic acid Chemical compound CNS(O)(=O)=O MYMDOKBFMTVEGE-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- AMULHDKUJWPBKU-UHFFFAOYSA-L nickel(2+);dichlorite Chemical compound [Ni+2].[O-]Cl=O.[O-]Cl=O AMULHDKUJWPBKU-UHFFFAOYSA-L 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000003969 polarography Methods 0.000 description 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- VISKNDGJUCDNMS-UHFFFAOYSA-M potassium;chlorite Chemical compound [K+].[O-]Cl=O VISKNDGJUCDNMS-UHFFFAOYSA-M 0.000 description 1
- BTAAXEFROUUDIL-UHFFFAOYSA-M potassium;sulfamate Chemical compound [K+].NS([O-])(=O)=O BTAAXEFROUUDIL-UHFFFAOYSA-M 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229960001479 tosylchloramide sodium Drugs 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 150000003751 zinc Chemical class 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Agronomy & Crop Science (AREA)
- Hydrology & Water Resources (AREA)
- Pest Control & Pesticides (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
そして、結合塩素は、少なくとも塩素系酸化剤とスルファミン酸化合物とを水系に添加することで生成させることができる。塩素系酸化剤とスルファミン酸化合物を用いることで、結合塩素としてクロロスルファミン酸化合物とすることができる。
また、遊離塩素は、次亜塩素酸塩と亜塩素酸塩と二酸化塩素と塩素ガスの少なくともいずれか一つを水系に添加することで生成させることができる。
レジオネラ属菌で汚染させた空調用冷却水に対し、クロロスルファミン酸及び遊離塩素による除菌処理を行った。遊離塩素のコントロールは次亜塩素酸塩を薬注することによって行った。
冷却塔の冷凍規模は300RT、保有水量30m3、濃縮倍率5倍で運転した。クロロスルファミン酸は冷却水ブロー水量に対して15mg/Lの割合で添加した。
剥離したスライムは濃縮に依存したブローによって自然排出させ、清掃等の特別な除去は実施しなかった。
遊離塩素の管理は、DPD法により残留塩素濃度を測定し、薬注量の管理を行った。遊離塩素は塩素残留計「Cl−17(HACH社製)」を用いて測定した。被処理水中のレジオネラ属菌数は、被処理水100mL中のコロニー形成単位(CFU:colony forming units)によって評価した。
その結果、遊離塩素濃度が0.2mg−Cl/Lの場合は、レジオネラ属菌数の低下はみられたものの、不検出を維持できなかった。しかし、遊離塩素濃度を0.3mg−Cl/L以上で管理した場合、レジオネラ属菌数の不検出を維持できた。特に、遊離塩素濃度を0.4mg−Cl/L以上とした2ヶ月目以降では、レジオネラ菌の発生を完全に抑制できた(図1)。
クロロスルファミン酸のみの1剤で処理をし、その他の条件は実施例1と同様にして試験した。その結果、遊離塩素濃度は0.1mg−Cl/Lを超えることなく、レジオネラ属菌数は一端消滅したが、その後再び発生した(図2)。
以上より、結合塩素と遊離塩素とを水系に存在させ、かつ水系における遊離塩素の濃度を少なくとも0.3mg−Cl/L以上とすることで、殺菌とスライムコントロールを効率よく行いうることが示された。
Claims (3)
- 結合塩素と遊離塩素とを水系に存在させ、該水系の遊離塩素濃度を測定し、その値に基づいて遊離塩素量を制御して、前記水系における遊離塩素の濃度を0.3〜0.8mg−Cl/Lの範囲に維持する水系のレジオネラ菌の殺菌方法。
- 前記遊離塩素は、次亜塩素酸塩と亜塩素酸塩と二酸化塩素と塩素ガスの少なくともいずれか一つを前記水系に添加することで生成され、
前記水系の残留塩素濃度に基づいて、次亜塩素酸塩、亜塩素酸塩、二酸化塩素及び/又は塩素ガスの薬注量を調節することで水系の遊離塩素量を制御することを特徴とする請求項1に記載の水系のレジオネラ菌の殺菌方法。 - 前記結合塩素は、少なくとも塩素系酸化剤とスルファミン酸化合物とを前記水系に添加することで生成され、
前記水系の結合塩素濃度を測定し、測定した遊離塩素濃度及び結合塩素濃度の両方に基づいて水系の結合塩素濃度を調節することを特徴とする請求項1又は2に記載の水系のレジオネラ菌の殺菌方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008039866A JP4867930B2 (ja) | 2008-02-21 | 2008-02-21 | 水系のレジオネラ菌の殺菌方法 |
TW098104823A TWI520912B (zh) | 2008-02-21 | 2009-02-16 | 水系統的軍團菌的殺菌方法 |
PCT/JP2009/052952 WO2009104707A1 (ja) | 2008-02-21 | 2009-02-20 | 水系の殺菌方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008039866A JP4867930B2 (ja) | 2008-02-21 | 2008-02-21 | 水系のレジオネラ菌の殺菌方法 |
Publications (3)
Publication Number | Publication Date |
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JP2009195822A JP2009195822A (ja) | 2009-09-03 |
JP2009195822A5 JP2009195822A5 (ja) | 2011-03-10 |
JP4867930B2 true JP4867930B2 (ja) | 2012-02-01 |
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JP2008039866A Active JP4867930B2 (ja) | 2008-02-21 | 2008-02-21 | 水系のレジオネラ菌の殺菌方法 |
Country Status (3)
Country | Link |
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JP (1) | JP4867930B2 (ja) |
TW (1) | TWI520912B (ja) |
WO (1) | WO2009104707A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012056874A (ja) * | 2010-09-08 | 2012-03-22 | Swing Corp | 冷却水系の処理方法及びそれに用いる処理剤セット |
JP5665524B2 (ja) * | 2010-12-21 | 2015-02-04 | 伯東株式会社 | 水系における微生物障害を抑制する水系処理方法 |
JP5835967B2 (ja) * | 2011-06-29 | 2015-12-24 | 伯東株式会社 | スライム剥離剤およびスライム剥離方法 |
JP5892136B2 (ja) * | 2013-09-24 | 2016-03-23 | 栗田工業株式会社 | 冷却水系の殺藻方法 |
US10647598B2 (en) * | 2013-09-24 | 2020-05-12 | Kurita Water Industries Ltd. | Antimicrobial and algicidal agent for cooling water system |
JP6020697B1 (ja) * | 2015-11-09 | 2016-11-02 | 栗田工業株式会社 | イソチアゾリン化合物の濃度低減抑制方法 |
JP6683008B2 (ja) * | 2016-05-13 | 2020-04-15 | 三浦工業株式会社 | 水処理システム |
JP6249122B2 (ja) * | 2017-03-30 | 2017-12-20 | 栗田工業株式会社 | 水系の微生物抑制方法 |
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US3170883A (en) * | 1962-04-02 | 1965-02-23 | Cortez Chemicals Company | Stabilization of chlorine in aqueous solutions |
JPH0677735B2 (ja) * | 1988-04-04 | 1994-10-05 | アクアス株式会社 | 循環冷却水系のレジオネラ属細菌発生防止法 |
JP3832399B2 (ja) * | 2001-08-28 | 2006-10-11 | 栗田工業株式会社 | 殺菌殺藻剤組成物及び水系の殺菌殺藻方法 |
JP3915560B2 (ja) * | 2002-03-14 | 2007-05-16 | 栗田工業株式会社 | スライム剥離剤、スライム剥離剤組成物およびスライム剥離方法 |
JP3731555B2 (ja) * | 2002-03-19 | 2006-01-05 | 栗田工業株式会社 | 冷却水の処理方法及び処理装置 |
JP2006263510A (ja) * | 2005-03-22 | 2006-10-05 | Kurita Water Ind Ltd | 膜分離用スライム防止剤及び膜分離方法 |
US20070098817A1 (en) * | 2005-10-27 | 2007-05-03 | Wetegrove Robert L | Biofouling control |
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TW200936513A (en) | 2009-09-01 |
JP2009195822A (ja) | 2009-09-03 |
WO2009104707A1 (ja) | 2009-08-27 |
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