JP5913087B2 - 排水処理システム - Google Patents
排水処理システム Download PDFInfo
- Publication number
- JP5913087B2 JP5913087B2 JP2012284703A JP2012284703A JP5913087B2 JP 5913087 B2 JP5913087 B2 JP 5913087B2 JP 2012284703 A JP2012284703 A JP 2012284703A JP 2012284703 A JP2012284703 A JP 2012284703A JP 5913087 B2 JP5913087 B2 JP 5913087B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- bromine
- aeration
- gas
- treated water
- 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.)
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- 238000004065 wastewater treatment Methods 0.000 title claims description 45
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 128
- 229910052794 bromium Inorganic materials 0.000 claims description 128
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 86
- 238000005273 aeration Methods 0.000 claims description 83
- 238000006243 chemical reaction Methods 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000002351 wastewater Substances 0.000 claims description 49
- -1 bromine ions Chemical class 0.000 claims description 44
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 43
- 238000011084 recovery Methods 0.000 claims description 42
- 239000002253 acid Substances 0.000 claims description 28
- 239000000460 chlorine Substances 0.000 claims description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 15
- 229910052801 chlorine Inorganic materials 0.000 claims description 15
- 239000012670 alkaline solution Substances 0.000 claims description 11
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 238000001139 pH measurement Methods 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims 2
- 238000010979 pH adjustment Methods 0.000 description 28
- 238000000034 method Methods 0.000 description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 238000005259 measurement Methods 0.000 description 15
- 239000003513 alkali Substances 0.000 description 10
- 238000006386 neutralization reaction Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000003638 chemical reducing agent Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 239000013535 sea water Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 150000002896 organic halogen compounds Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 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 1
- 241001131796 Botaurus stellaris Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 244000245420 ail Species 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 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
- 238000001035 drying Methods 0.000 description 1
- 235000004611 garlic Nutrition 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Images
Landscapes
- Gas Separation By Absorption (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
2ClO− + 2H+ → 2HClO …(1)
2HClO + 2H+ 2e− → Cl2 + 2H2O …(2)
2Br− → Br2(液) + 2e− …(3)
2Br− + 2ClO− + 4H+
→ Br2(液) + Cl2 +2H2O …(4)
Claims (3)
- 臭素イオンを含む排水を処理する排水処理システムであって、
前記排水に次亜塩素酸が添加される反応槽と、
前記反応槽よりも上流側に設けられ、前記次亜塩素酸が添加される前の前記排水のpHを酸性に調整するpH調整槽と、
前記反応槽の下流側に設けられ、前記反応槽からの処理水を曝気する曝気槽と、
前記曝気槽の出口側に設けられ、前記曝気槽の出口側の処理水のpHを測定するpH測定部と、
前記曝気槽の出口側に設けられ、前記曝気槽の出口側の処理水の残留塩素濃度を測定する残留塩素濃度測定部と、を備える、排水処理システム。 - 除去された臭素ガスから臭素をアルカリ溶液によって回収する回収部を更に備え、
前記曝気槽では、前記回収部によって臭素が回収されたガスを曝気ガスとして用いる、請求項1に記載の排水処理システム。 - 前記反応槽は、前記排水のpHを酸性に保つための酸供給部を更に備える、請求項1又は2に記載の排水処理システム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284703A JP5913087B2 (ja) | 2012-12-27 | 2012-12-27 | 排水処理システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284703A JP5913087B2 (ja) | 2012-12-27 | 2012-12-27 | 排水処理システム |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2014124600A JP2014124600A (ja) | 2014-07-07 |
JP2014124600A5 JP2014124600A5 (ja) | 2015-02-26 |
JP5913087B2 true JP5913087B2 (ja) | 2016-04-27 |
Family
ID=51404575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012284703A Active JP5913087B2 (ja) | 2012-12-27 | 2012-12-27 | 排水処理システム |
Country Status (1)
Country | Link |
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JP (1) | JP5913087B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019166459A (ja) * | 2018-03-23 | 2019-10-03 | 住友重機械エンバイロメント株式会社 | 水処理装置及び水処理方法 |
JP7284624B2 (ja) * | 2019-04-19 | 2023-05-31 | 住友重機械エンバイロメント株式会社 | 残留塩素除去方法、残留塩素除去システムの制御装置及び残留塩素除去システム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55154305A (en) * | 1979-05-21 | 1980-12-01 | Mitsubishi Electric Corp | Recovery of bromine from bromine ion-containing waste water |
JPS58167403A (ja) * | 1982-03-30 | 1983-10-03 | Toyo Soda Mfg Co Ltd | 臭素の製造方法 |
JPH07171581A (ja) * | 1993-12-22 | 1995-07-11 | Fuji Photo Film Co Ltd | 写真廃液からのBr2 の回収方法 |
JPH1018071A (ja) * | 1996-07-08 | 1998-01-20 | Mitsui Petrochem Ind Ltd | 食塩水溶液の電解方法 |
JP2006167570A (ja) * | 2004-12-15 | 2006-06-29 | Sumitomo Chemical Co Ltd | 食塩水中の臭素イオンの除去方法 |
US8496815B2 (en) * | 2008-09-19 | 2013-07-30 | Iofina Natural Gas, Inc. | Iodine recovery systems |
-
2012
- 2012-12-27 JP JP2012284703A patent/JP5913087B2/ja active Active
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Publication number | Publication date |
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JP2014124600A (ja) | 2014-07-07 |
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