JP7441066B2 - 予備処理方法、予備処理装置、尿素濃度測定方法、尿素濃度測定装置、超純水製造方法及び超純水製造システム - Google Patents
予備処理方法、予備処理装置、尿素濃度測定方法、尿素濃度測定装置、超純水製造方法及び超純水製造システム Download PDFInfo
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- 239000004202 carbamide Substances 0.000 title claims description 229
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 226
- 229910021642 ultra pure water Inorganic materials 0.000 title claims description 92
- 239000012498 ultrapure water Substances 0.000 title claims description 92
- 238000004519 manufacturing process Methods 0.000 title claims description 56
- 238000005259 measurement Methods 0.000 title claims description 35
- 238000002203 pretreatment Methods 0.000 title claims description 7
- 238000000691 measurement method Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 claims description 197
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 151
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 81
- 229910052799 carbon Inorganic materials 0.000 claims description 71
- 239000000126 substance Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 26
- 238000011282 treatment Methods 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000011221 initial treatment Methods 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 description 41
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 36
- 239000012528 membrane Substances 0.000 description 26
- 239000005416 organic matter Substances 0.000 description 20
- 238000000746 purification Methods 0.000 description 20
- 238000006114 decarboxylation reaction Methods 0.000 description 18
- 238000001223 reverse osmosis Methods 0.000 description 18
- 238000001914 filtration Methods 0.000 description 17
- 238000005374 membrane filtration Methods 0.000 description 15
- 239000002253 acid Substances 0.000 description 14
- 238000001514 detection method Methods 0.000 description 14
- 239000001569 carbon dioxide Substances 0.000 description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 description 13
- 238000005342 ion exchange Methods 0.000 description 13
- 239000007800 oxidant agent Substances 0.000 description 12
- 150000002500 ions Chemical class 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 9
- 239000013067 intermediate product Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- -1 hydrogen ions Chemical class 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- CUILPNURFADTPE-UHFFFAOYSA-N hypobromous acid Chemical compound BrO CUILPNURFADTPE-UHFFFAOYSA-N 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000010979 pH adjustment Methods 0.000 description 4
- 238000009849 vacuum degassing Methods 0.000 description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000007872 degassing Methods 0.000 description 3
- 238000006864 oxidative decomposition reaction Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000013076 target substance Substances 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003957 anion exchange resin Substances 0.000 description 2
- 238000002242 deionisation method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Chemical compound Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 2
- 239000008238 pharmaceutical water Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000008215 water for injection Substances 0.000 description 2
- 229920002201 Oxidized cellulose Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 108010046334 Urease Proteins 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000911 decarboxylating effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 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
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 229910052757 nitrogen 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
- 229940107304 oxidized cellulose Drugs 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Toxicology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physical Water Treatments (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
分解率=紫外線照射装置52による照射後の測定対象液中の対象物質濃度/紫外線照射装置52による照射前の測定対象液中の対象物質濃度
ただし、対象物質とは、尿素、もしくは、尿素以外の測定対象液中の有機物量
全有機炭素濃度=全炭素濃度-無機炭素濃度 (1)
尿素濃度=TOC計の計測値×60/12
14 超純水製造装置
16 超純水製造システム
18 前処理装置
20 一次純水装置
22 吸着装置
24 膜濾過装置
26 イオン交換装置
28 純水タンク
30 二次純水装置
32 紫外線照射装置
34 膜脱気装置
36 イオン交換装置
38 膜濾過装置
40 ユースポイント
50 濾過装置
52 紫外線照射装置
54 TOC計
56 脱炭酸装置
58 酸化装置
60、62 CO2検出装置
66 超純水製造システム
Claims (7)
- 測定対象液の全有機炭素量を全有機炭素計により測定する前段階で、前記測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射する測定対象液の尿素濃度測定装置における予備処理方法。
- 測定対象液の全有機炭素量を測定する全有機炭素計よりも前記測定対象液の流れの上流側に設けられ、前記測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射する測定対象液の尿素濃度測定装置における予備処理装置。
- 測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射し、
尿素以外の有機物が分解された前記測定対象液に対し、全有機炭素量を全有機炭素計により測定する尿素濃度測定方法。 - 測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射する予備処理装置と、
前記予備処理装置による前記紫外線の照射により尿素以外の有機物が分解された前記測定対象液に対し、全有機炭素量を測定する全有機炭素計と、
を有する尿素濃度測定装置。 - 原水に対する処理により超純水を生成し前記超純水が使用されるユースポイントまで前記超純水を送り、
前記原水から前記超純水までのいずれかの段階の液を測定対象液とし、前記測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射し、
尿素以外の有機物が分解された前記測定対象液に対し、全有機炭素量を全有機炭素計により測定する、超純水製造方法。 - 原水に対する処理により超純水を生成し前記超純水が使用されるユースポイントまで前記超純水を送る超純水製造装置と、
前記超純水製造装置における前記原水から前記超純水までのいずれかの段階の液を測定対象液とし、測定対象液に対し前記測定対象液の単位体積当たりで、1.0Wh/L以上20Wh/L以下の照射エネルギーで紫外線を照射する予備処理装置と、
前記予備処理装置による前記紫外線の照射により尿素以外の有機物が分解された前記測定対象液に対し、全有機炭素量を測定する全有機炭素計と、
を有する超純水製造システム。 - 前記超純水製造装置が、
前記原水に対する一次処理により一次純水を生成する一次純水装置と、
前記一次純水に対する二次処理により前記超純水を生成する二次純水装置と、
を有し、
前記予備処理装置及び前記全有機炭素計が、前記二次純水装置と前記ユースポイントの間に設けられる請求項6に記載の超純水製造システム。
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JP2020020877A JP7441066B2 (ja) | 2020-02-10 | 2020-02-10 | 予備処理方法、予備処理装置、尿素濃度測定方法、尿素濃度測定装置、超純水製造方法及び超純水製造システム |
KR1020210016189A KR20210102081A (ko) | 2020-02-10 | 2021-02-04 | 예비 처리 방법, 예비 처리 장치, 요소 농도 측정 방법, 요소 농도 측정 장치, 초순수 제조 방법 및 초순수 제조 시스템 |
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JP7441066B2 true JP7441066B2 (ja) | 2024-02-29 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050106650A1 (en) | 2001-12-03 | 2005-05-19 | Godec Richard D. | Sensitive detection of urea and related compounds in water |
JP2008246387A (ja) | 2007-03-30 | 2008-10-16 | Kurita Water Ind Ltd | 一次純水製造プロセス水の処理方法及び装置 |
JP2015073923A (ja) | 2013-10-07 | 2015-04-20 | 野村マイクロ・サイエンス株式会社 | 超純水製造方法及び超純水製造システム |
JP2016005829A (ja) | 2014-06-20 | 2016-01-14 | 栗田工業株式会社 | 超純水製造方法および超純水製造装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08192154A (ja) | 1995-01-17 | 1996-07-30 | Kurita Water Ind Ltd | 尿素の分析方法 |
JP2006090732A (ja) | 2004-09-21 | 2006-04-06 | Dkk Toa Corp | 全有機炭素含量の測定方法および装置 |
JP7243039B2 (ja) | 2018-04-27 | 2023-03-22 | 栗田工業株式会社 | 尿素監視装置及び純水製造装置 |
JP2019191100A (ja) | 2018-04-27 | 2019-10-31 | 栗田工業株式会社 | 尿素分析装置及び純水製造装置 |
-
2020
- 2020-02-10 JP JP2020020877A patent/JP7441066B2/ja active Active
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2021
- 2021-02-04 KR KR1020210016189A patent/KR20210102081A/ko unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050106650A1 (en) | 2001-12-03 | 2005-05-19 | Godec Richard D. | Sensitive detection of urea and related compounds in water |
JP2008246387A (ja) | 2007-03-30 | 2008-10-16 | Kurita Water Ind Ltd | 一次純水製造プロセス水の処理方法及び装置 |
JP2015073923A (ja) | 2013-10-07 | 2015-04-20 | 野村マイクロ・サイエンス株式会社 | 超純水製造方法及び超純水製造システム |
JP2016005829A (ja) | 2014-06-20 | 2016-01-14 | 栗田工業株式会社 | 超純水製造方法および超純水製造装置 |
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KR20210102081A (ko) | 2021-08-19 |
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