JP2016187779A - 排水処理装置及び排水処理方法 - Google Patents
排水処理装置及び排水処理方法 Download PDFInfo
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- JP2016187779A JP2016187779A JP2015068766A JP2015068766A JP2016187779A JP 2016187779 A JP2016187779 A JP 2016187779A JP 2015068766 A JP2015068766 A JP 2015068766A JP 2015068766 A JP2015068766 A JP 2015068766A JP 2016187779 A JP2016187779 A JP 2016187779A
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- fluorine
- solid
- liquid
- sulfate
- liquid separation
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 84
- 239000011737 fluorine Substances 0.000 claims abstract description 78
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 78
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 43
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 239000002351 wastewater Substances 0.000 claims abstract description 43
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 39
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims abstract 10
- 239000010802 sludge Substances 0.000 abstract description 13
- 244000144992 flock Species 0.000 abstract 6
- 239000000701 coagulant Substances 0.000 abstract 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 68
- 239000000126 substance Substances 0.000 description 19
- 239000011259 mixed solution Substances 0.000 description 16
- 239000011575 calcium Substances 0.000 description 10
- 238000010992 reflux Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 5
- 238000000975 co-precipitation Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 230000004931 aggregating effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- -1 sulfate compound Chemical class 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
【解決手段】混合槽2で硫酸塩含有排水とアルミ系無機凝集剤とを混合し、フロックを混合液中に生成させ、このフロックにより混合液中のフッ素を吸着させて液中から除去する。そして、固液分離槽4において、既にフッ素を吸着したフロックをフッ素と共に共沈させ、また、未だフッ素を吸着していないフロックも沈降させて固液分離し、これらの固液分離した固形分を混合槽2に供給する。これにより、未だフッ素を吸着していないフロック及び既にフッ素を吸着したが更にフッ素を吸着することができる状態のフロックにより混合液中のフッ素を吸着させて液中から除去する。
【選択図】図1
Description
Claims (3)
- 硫酸塩含有排水からフッ素を除去する排水処理装置において、
前記硫酸塩含有排水とアルミ系無機凝集剤とを混合する混合部と、
前記混合部で混合された混合液を固液分離する固液分離部と、
前記固液分離部で固液分離して得た固形分を前記混合部に供給するための供給手段と、を備える排水処理装置。 - 前記混合部は、pHを調整するpH調整手段を有する請求項1に記載の排水処理装置。
- 硫酸塩含有排水からフッ素を除去する排水処理方法において、
前記硫酸塩含有排水とアルミ系無機凝集剤とを混合部で混合し、
前記混合部で混合された混合液を固液分離部で固液分離し、
前記固液分離部で固液分離して得た固形分を前記混合部に供給する排水処理方法。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020218621A1 (ja) | 2019-04-26 | 2020-10-29 | ダイキン工業株式会社 | 水の処理方法および組成物 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159246A (en) * | 1975-09-10 | 1979-06-26 | Kohei Deguchi | Removal of fluorine from water |
JPS5622627A (en) * | 1979-07-27 | 1981-03-03 | Sumitomo Metal Mining Co Ltd | Purifying method for fluorine impurity-containing sodium sulfate |
JPS6097091A (ja) * | 1983-10-31 | 1985-05-30 | Kurita Water Ind Ltd | フツ化物イオン含有水の処理方法 |
JPH0857498A (ja) * | 1994-08-26 | 1996-03-05 | Sharp Corp | 排水処理装置および排水処理方法 |
JP2001314873A (ja) * | 2000-05-09 | 2001-11-13 | Mitsubishi Heavy Ind Ltd | 硫酸含有排水処理方法とその装置 |
JP2003126866A (ja) * | 2001-10-29 | 2003-05-07 | Mitsubishi Heavy Ind Ltd | 排水中フッ素の除去方法およびそのシステム |
JP2003340210A (ja) * | 2002-05-28 | 2003-12-02 | Japan Organo Co Ltd | ろ過装置の洗浄方法 |
JP2005125153A (ja) * | 2003-10-21 | 2005-05-19 | Kurita Water Ind Ltd | フッ素含有排水の処理方法及び処理装置 |
JP2010075928A (ja) * | 2009-11-27 | 2010-04-08 | Kurita Water Ind Ltd | フッ素含有排水の処理方法及び処理装置 |
JP2012106226A (ja) * | 2010-10-29 | 2012-06-07 | Mitsubishi Materials Corp | 有害物質含有水の処理方法および処理装置。 |
JP2014050841A (ja) * | 2013-11-08 | 2014-03-20 | Waseda Univ | 水処理方法 |
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2015
- 2015-03-30 JP JP2015068766A patent/JP6826806B2/ja active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159246A (en) * | 1975-09-10 | 1979-06-26 | Kohei Deguchi | Removal of fluorine from water |
JPS5622627A (en) * | 1979-07-27 | 1981-03-03 | Sumitomo Metal Mining Co Ltd | Purifying method for fluorine impurity-containing sodium sulfate |
JPS6097091A (ja) * | 1983-10-31 | 1985-05-30 | Kurita Water Ind Ltd | フツ化物イオン含有水の処理方法 |
JPH0857498A (ja) * | 1994-08-26 | 1996-03-05 | Sharp Corp | 排水処理装置および排水処理方法 |
JP2001314873A (ja) * | 2000-05-09 | 2001-11-13 | Mitsubishi Heavy Ind Ltd | 硫酸含有排水処理方法とその装置 |
JP2003126866A (ja) * | 2001-10-29 | 2003-05-07 | Mitsubishi Heavy Ind Ltd | 排水中フッ素の除去方法およびそのシステム |
JP2003340210A (ja) * | 2002-05-28 | 2003-12-02 | Japan Organo Co Ltd | ろ過装置の洗浄方法 |
JP2005125153A (ja) * | 2003-10-21 | 2005-05-19 | Kurita Water Ind Ltd | フッ素含有排水の処理方法及び処理装置 |
JP2010075928A (ja) * | 2009-11-27 | 2010-04-08 | Kurita Water Ind Ltd | フッ素含有排水の処理方法及び処理装置 |
JP2012106226A (ja) * | 2010-10-29 | 2012-06-07 | Mitsubishi Materials Corp | 有害物質含有水の処理方法および処理装置。 |
JP2014050841A (ja) * | 2013-11-08 | 2014-03-20 | Waseda Univ | 水処理方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020218621A1 (ja) | 2019-04-26 | 2020-10-29 | ダイキン工業株式会社 | 水の処理方法および組成物 |
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