JPH08509908A - 飲料水配管系統の清浄化及び保全方法 - Google Patents
飲料水配管系統の清浄化及び保全方法Info
- Publication number
- JPH08509908A JPH08509908A JP6521313A JP52131394A JPH08509908A JP H08509908 A JPH08509908 A JP H08509908A JP 6521313 A JP6521313 A JP 6521313A JP 52131394 A JP52131394 A JP 52131394A JP H08509908 A JPH08509908 A JP H08509908A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- cleaning
- solution
- scale
- cleaning solution
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 63
- 239000003651 drinking water Substances 0.000 title claims abstract description 24
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 24
- 238000012423 maintenance Methods 0.000 title 1
- 239000000243 solution Substances 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000009826 distribution Methods 0.000 claims abstract description 31
- 238000011282 treatment Methods 0.000 claims abstract description 28
- 239000007864 aqueous solution Substances 0.000 claims abstract description 15
- 230000002378 acidificating effect Effects 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 36
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 28
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- 239000013049 sediment Substances 0.000 claims description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 229910021529 ammonia Inorganic materials 0.000 claims description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
- 239000011707 mineral Substances 0.000 claims description 14
- 150000007524 organic acids Chemical class 0.000 claims description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 235000005985 organic acids Nutrition 0.000 claims description 12
- 239000000344 soap Substances 0.000 claims description 12
- 150000007513 acids Chemical class 0.000 claims description 10
- 239000002028 Biomass Substances 0.000 claims description 9
- 241000295146 Gallionellaceae Species 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002585 base Substances 0.000 claims description 8
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- -1 penetrants Substances 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 150000001412 amines Chemical group 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 6
- 235000011054 acetic acid Nutrition 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- 239000008235 industrial water Substances 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 4
- 235000019260 propionic acid Nutrition 0.000 claims description 4
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000002738 chelating agent Substances 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- 239000003929 acidic solution Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims 1
- 239000003637 basic solution Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000036571 hydration Effects 0.000 claims 1
- 238000006703 hydration reaction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000007800 oxidant agent Substances 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 11
- 229960004275 glycolic acid Drugs 0.000 description 10
- 235000010755 mineral Nutrition 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000010306 acid treatment Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 235000013980 iron oxide Nutrition 0.000 description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000009533 lab test Methods 0.000 description 3
- 150000007522 mineralic acids Chemical class 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229940048842 sodium xylenesulfonate Drugs 0.000 description 2
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical class [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000011160 magnesium carbonates Nutrition 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000002637 putamen Anatomy 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/08—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/265—Carboxylic acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3218—Alkanolamines or alkanolimines
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
-
- C11D2111/20—
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.飲料水配管系統を清浄化する方法において、 主に酸化鉄、バイオマス及び堆積物からなる硫酸塩還元性鉄バクテリアを伴っ たスケール(水あか)を飲料水配管系統の内側表面から除去するための有効な量 のクリーニング水溶液を導入し、然も、前記溶液は酸性、中性、及び塩基性溶液 からなる群から選択され、 前記配管系統内のパイプの一部分を、それを通って前記クリーニング溶液を循 環させるために封鎖し、 前記クリーニング溶液を前記配管系統を通って前記スケール及び堆積物の可溶 化、緩和(loosening)及び(又は)懸濁を行うのに充分な時間循環し、 可溶化、緩和、又は懸濁したスケール及び堆積物を含む前記クリーニング溶液 を前記配管系統からフラッシュする、 ことからなる清浄化法。 2.使用済みクリーニング溶液を除去した後、配管系統を奇麗な水でフラッシ ュする更に別の工程を含む、請求項1に記載の方法。 3.使用済みクリーニング溶液、スケール及び(又は)堆積物を除去するため に、配管系統を高圧水でフラッシュする更に別の工程を含む、請求項1に記載の 方法。 4.処理水溶液が酸性である、請求項1に記載の方法。 5.酸性溶液が更に、スケール及び堆積物の除去を補助する、酸抑制剤、キレ ート剤、表面活性剤、浸透剤、分散剤、及びそれらの混合物からなる群から選択 された添加剤を含む、請求項4に記載の方法。 6.酸が、鉱酸、有機酸、及びそれらの混合物からなる群から選択される、請 求項4に記載の方法。 7.鉱酸が、塩酸、硝酸、リン酸、ポリリン酸、フッ化水素酸、ホウ酸、硫酸 、亜硫酸、及びそれらの混合物からなる群から選択される、請求項6に記載の方 法。 8.有機酸が、ギ酸、酢酸、プロピオン酸、クエン酸、グリコール酸、乳酸、 酒石酸、ポリアクリル酸、コハク酸、p−トルエンスルホン酸、及びそれらの混 合物からなる群から選択される、請求項6に記載の方法。 9.溶液が、スケール及び堆積物の除去を補助する、酸抑制剤、キレート剤、 表面活性剤、浸透剤、分散剤、及びそれらの混合物からなる群からの添加剤を更 に含む、請求項6に記載の方法。 10.クリーニング溶液が、塩酸、グリコール酸、アルカノールアミン、及び表 面活性剤の混合物である、請求項1に記載の方法。 11.混合物を、クリーニング水溶液として前混合物に用いる、請求項10に記 載の方法。 12.クリーニング溶液が、酸と塩基との化学量論的1:1当量の石鹸を含有し 、然も、前記酸が鉱酸及び有機酸からなる群から選択され、前記塩基がアミン及 びアンモニアからなる群から選択され、スケールと反応するのに効果的な量の遊 離酸が前記溶液中に存在する、請求項1に記載の方法。 13.飲料水配管系統を清浄化する方法において、 主に酸化鉄、バイオマス及び堆積物からなる硫酸塩還元性鉄バクテリアを伴っ たスケールを、飲料水配管系統の内側管表面から除去するための酸性クリーニン グ水溶液を入れるための貯槽を与え、 前記配管系統内のパイプの一部分を、それを通って前記クリーニング溶液を循 環させるために封鎖し、 前記クリーニング溶液を前記貯槽から前記パイプ部分を通って循環し、前記溶 液を前記貯槽へ戻し、前記スケール及び堆積物を除去する、 ことからなる清浄化法。 14.クリーニング溶液が、塩酸、グリコール酸、アルカノールアミン、及び表 面活性剤の混合物である、請求項13に記載の方法。 15.クリーニング溶液が、酸と塩基との化学量論的1:1当量の石鹸を含有し 、然も、前記酸が鉱酸及び有機酸からなる群から選択され、前記塩基がアミン及 びアンモニアからなる群から選択され、スケールと反応するのに効果的な量の遊 離酸が前記溶液中に存在する、請求項13に記載の方法。 16.貯槽が、クリーニング溶液の調製、貯蔵、及び排出のためにトラックに取 付けられている、請求項13に記載の方法。 17.二つの消火栓の間のパイプ部分を封鎖し、前記消火栓の一つを貯槽に接続 し、前記パイプ部分を通って前記クリーニング溶液をポンプで送ることにより前 記クリーニング溶液を循環する、請求項13に記載の方法。 18.配管系統が家庭用又は工業用配水系統である、請求項13に記載の方法。 19.使用済みクリーニング溶液を除去した後、配管系統を奇麗な水でフラッシ ュする更に別の工程を含む、請求項13に記載の方法。 20.鉱酸が、塩酸、硝酸、リン酸、ポリリン酸、フッ化水素酸、ホウ酸、硫酸 、亜硫酸、及びそれらの混合物からなる群から選択され、有機酸が、ギ酸、酢酸 、プロピオン酸、クエン酸、グリコール酸、乳酸、酒石酸、ポリアクリル酸、コ ハク酸、ポリ−トルエンスルホン酸、及びそれらの混合物からなる群から選択さ れる、請求項15に記載の方法。 21.処理水溶液が、飲料水配管系統のための全国衛生財団基準60(National Sanitation Foundation Standard 60)の条件に合う、請求項13に記載の方法 。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/036,188 | 1993-03-23 | ||
US08/036,188 US5360488A (en) | 1993-03-23 | 1993-03-23 | Method of cleaning and maintaining water distribution pipe systems |
US20995394A | 1994-03-17 | 1994-03-17 | |
US08/209,953 | 1994-03-17 | ||
PCT/US1994/003065 WO1994021865A1 (en) | 1993-03-23 | 1994-03-22 | Method of cleaning and maintaining potable water distribution pipe systems |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08509908A true JPH08509908A (ja) | 1996-10-22 |
JP3597193B2 JP3597193B2 (ja) | 2004-12-02 |
Family
ID=26712917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52131394A Expired - Fee Related JP3597193B2 (ja) | 1993-03-23 | 1994-03-22 | 飲料水配管系統の清浄化及び保全方法 |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0690944B1 (ja) |
JP (1) | JP3597193B2 (ja) |
AT (1) | ATE170583T1 (ja) |
AU (1) | AU673426B2 (ja) |
BR (1) | BR9406139A (ja) |
CA (1) | CA2157916C (ja) |
DE (1) | DE69413017T2 (ja) |
WO (1) | WO1994021865A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11141713A (ja) * | 1997-09-05 | 1999-05-28 | Tetra Laval Holdings & Finance Sa | 無菌弁組立体 |
JP2005163135A (ja) * | 2003-12-04 | 2005-06-23 | Kao Corp | 金属成分の処理液 |
JP2007270222A (ja) * | 2006-03-30 | 2007-10-18 | Kurita Water Ind Ltd | スケール洗浄剤及びスケール除去方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0766765A1 (en) * | 1994-06-20 | 1997-04-09 | H.E.R.C. Products Incorporated | Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution |
US5755155A (en) * | 1997-02-28 | 1998-05-26 | Tetra Laval Holdings & Finance S.A. | Aseptic process interface group |
JP2002052322A (ja) | 2000-08-10 | 2002-02-19 | Kurita Water Ind Ltd | 洗浄方法 |
WO2016068525A1 (ko) * | 2014-10-27 | 2016-05-06 | 이기원 | 스케일 제거 방법 |
RU2594426C1 (ru) * | 2015-02-26 | 2016-08-20 | Акционерное общество "Научно-исследовательский и проектный институт по переработке газа" (АО "НИПИгазпереработка") | Способ очистки внутренней поверхности технологического оборудования и трубопроводов (варианты) |
CA2969174A1 (en) | 2017-06-02 | 2018-12-02 | Fluid Energy Group Ltd. | Novel modified acid compositions as alternatives to conventional acids in the oil and gas industry |
DE202019003089U1 (de) * | 2019-07-24 | 2020-10-27 | Josef Schallameier | Entkalkung von unter Druck stehenden Rohrleitungen beliebiger Länge |
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US3667487A (en) * | 1970-12-11 | 1972-06-06 | Richardson Chem Cleaning Servi | Integrated chemical cleaning apparatus |
US4025359A (en) * | 1974-04-01 | 1977-05-24 | Connelly Jr George F | Inhibited acid composition for cleaning water systems |
DE3066305D1 (en) * | 1979-10-24 | 1984-03-01 | Fischer Ag Georg | Method and apparatus for rinsing, cleaning, disinfecting and coating a conduit on the interior, especially a water conduit in a new construction |
DE3244443C2 (de) * | 1982-12-01 | 1986-11-06 | Späne, Rainer, 7888 Rheinfelden | Verfahren zur Entfernung von eisen-, calcium- und manganhaltigen Verockerungen und/oder Versinterungen aus zur Wasserversorgung betriebenen Einrichtungen |
DE3583586D1 (de) * | 1984-11-30 | 1991-08-29 | Feldmann Chemie Gmbh | Verwendung von mischung aus organischen und/oder anorganischen saeuren und/oder sauren salzen zur entfernung von eisen- und manganhaltigen ablagerungen und verockerungen. |
FR2602571B1 (fr) * | 1986-08-06 | 1989-02-03 | Assainissement Rationnel Pompa | Procede de nettoyage d'une conduite notamment d'un reseau de distribution d'eau potable et systeme pour la mise en oeuvre de ce procede |
DE3631459A1 (de) * | 1986-09-16 | 1988-03-24 | Wegener Paul | Verfahren zum innenreinigen von verzweigten rohrleitungen und/oder aggregaten sowie vorrichtung zur durchfuehrung dieses verfahrens |
DE3731441A1 (de) * | 1987-08-13 | 1989-02-23 | Imhof Elisabeth | Verfahren und vorrichtung zur reinigung, korrosionsbeseitigung, ggf. entkalkung und versiegelung von gebaeudewasserinstallationen |
DE3828229A1 (de) * | 1988-08-19 | 1990-02-22 | Feldmann Chemie Gmbh | Mittel zur reinigung, desinfektion und wartung von trinkwasseranlagen und anlagen der getraenkeindustrie |
DE4015201A1 (de) * | 1990-05-11 | 1991-11-14 | Heimo Wessollek | Reiniger fuer trinkwasseranlagen |
DE4015202A1 (de) * | 1990-05-11 | 1991-11-14 | Heimo Wessollek | Reiniger fuer trinkwasseranlagen |
US5322635A (en) * | 1991-05-16 | 1994-06-21 | H.E.R.C. Incorporated | Soap compositions of carboxylic acids and amines useful in removal and prevention of scale |
DE4125315C2 (de) * | 1991-07-31 | 1995-09-28 | Oertzen Arndt H Gmbh & Co | Vorrichtung zum Reinigen von Rohrleitungen |
-
1994
- 1994-03-22 CA CA002157916A patent/CA2157916C/en not_active Expired - Fee Related
- 1994-03-22 AU AU64903/94A patent/AU673426B2/en not_active Ceased
- 1994-03-22 EP EP94912283A patent/EP0690944B1/en not_active Expired - Lifetime
- 1994-03-22 DE DE69413017T patent/DE69413017T2/de not_active Expired - Fee Related
- 1994-03-22 JP JP52131394A patent/JP3597193B2/ja not_active Expired - Fee Related
- 1994-03-22 AT AT94912283T patent/ATE170583T1/de active
- 1994-03-22 BR BR9406139A patent/BR9406139A/pt not_active IP Right Cessation
- 1994-03-22 WO PCT/US1994/003065 patent/WO1994021865A1/en active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11141713A (ja) * | 1997-09-05 | 1999-05-28 | Tetra Laval Holdings & Finance Sa | 無菌弁組立体 |
JP2005163135A (ja) * | 2003-12-04 | 2005-06-23 | Kao Corp | 金属成分の処理液 |
JP2007270222A (ja) * | 2006-03-30 | 2007-10-18 | Kurita Water Ind Ltd | スケール洗浄剤及びスケール除去方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0690944A1 (en) | 1996-01-10 |
DE69413017D1 (de) | 1998-10-08 |
CA2157916C (en) | 2000-01-25 |
AU6490394A (en) | 1994-10-11 |
WO1994021865A1 (en) | 1994-09-29 |
CA2157916A1 (en) | 1994-09-29 |
BR9406139A (pt) | 1996-01-30 |
DE69413017T2 (de) | 1999-01-28 |
JP3597193B2 (ja) | 2004-12-02 |
ATE170583T1 (de) | 1998-09-15 |
AU673426B2 (en) | 1996-11-07 |
EP0690944B1 (en) | 1998-09-02 |
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