JPS6254071B2 - - Google Patents
Info
- Publication number
- JPS6254071B2 JPS6254071B2 JP55077959A JP7795980A JPS6254071B2 JP S6254071 B2 JPS6254071 B2 JP S6254071B2 JP 55077959 A JP55077959 A JP 55077959A JP 7795980 A JP7795980 A JP 7795980A JP S6254071 B2 JPS6254071 B2 JP S6254071B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- water
- ions
- sulfuric acid
- lime
- 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.)
- Expired
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 169
- 238000000034 method Methods 0.000 claims description 150
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 103
- 239000002253 acid Substances 0.000 claims description 81
- 239000002351 wastewater Substances 0.000 claims description 68
- 150000002500 ions Chemical class 0.000 claims description 62
- 229910052602 gypsum Inorganic materials 0.000 claims description 61
- 239000010440 gypsum Substances 0.000 claims description 61
- 238000001816 cooling Methods 0.000 claims description 54
- 238000000354 decomposition reaction Methods 0.000 claims description 44
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 40
- 239000011575 calcium Substances 0.000 claims description 37
- 239000003957 anion exchange resin Substances 0.000 claims description 29
- 238000005342 ion exchange Methods 0.000 claims description 29
- 239000006228 supernatant Substances 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 25
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 20
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 12
- 239000003377 acid catalyst Substances 0.000 claims description 11
- 230000001172 regenerating effect Effects 0.000 claims description 10
- 229940075933 dithionate Drugs 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- 239000007789 gas Substances 0.000 description 20
- 230000008929 regeneration Effects 0.000 description 15
- 238000011069 regeneration method Methods 0.000 description 15
- 229920000642 polymer Polymers 0.000 description 12
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 238000011282 treatment Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000005345 coagulation Methods 0.000 description 11
- 230000015271 coagulation Effects 0.000 description 11
- 238000001556 precipitation Methods 0.000 description 11
- 238000006477 desulfuration reaction Methods 0.000 description 10
- 230000023556 desulfurization Effects 0.000 description 10
- 238000010979 pH adjustment Methods 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 9
- 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 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000003456 ion exchange resin Substances 0.000 description 8
- 229920003303 ion-exchange polymer Polymers 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
- 239000000920 calcium hydroxide Substances 0.000 description 6
- 235000011116 calcium hydroxide Nutrition 0.000 description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000003839 salts Chemical group 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- -1 bisulfite ions Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Removal Of Specific Substances (AREA)
- Treating Waste Gases (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795980A JPS574297A (en) | 1980-06-10 | 1980-06-10 | Waste water purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795980A JPS574297A (en) | 1980-06-10 | 1980-06-10 | Waste water purification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS574297A JPS574297A (en) | 1982-01-09 |
| JPS6254071B2 true JPS6254071B2 (enrdf_load_stackoverflow) | 1987-11-13 |
Family
ID=13648514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7795980A Granted JPS574297A (en) | 1980-06-10 | 1980-06-10 | Waste water purification method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574297A (enrdf_load_stackoverflow) |
-
1980
- 1980-06-10 JP JP7795980A patent/JPS574297A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS574297A (en) | 1982-01-09 |
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