JPS5561998A - Treatment method for flue gas desulfurization and denitrification waste water - Google Patents
Treatment method for flue gas desulfurization and denitrification waste waterInfo
- Publication number
- JPS5561998A JPS5561998A JP13605378A JP13605378A JPS5561998A JP S5561998 A JPS5561998 A JP S5561998A JP 13605378 A JP13605378 A JP 13605378A JP 13605378 A JP13605378 A JP 13605378A JP S5561998 A JPS5561998 A JP S5561998A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- compounds
- denitrification
- treatment
- residual
- 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
- 239000002351 wastewater Substances 0.000 title abstract 6
- 238000006477 desulfuration reaction Methods 0.000 title abstract 3
- 230000023556 desulfurization Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003546 flue gas Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 6
- 239000003957 anion exchange resin Substances 0.000 abstract 2
- RMGVZKRVHHSUIM-UHFFFAOYSA-N dithionic acid Chemical compound OS(=O)(=O)S(O)(=O)=O RMGVZKRVHHSUIM-UHFFFAOYSA-N 0.000 abstract 2
- 230000002829 reductive effect Effects 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000010306 acid treatment Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
- 230000001546 nitrifying effect Effects 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
Abstract
PURPOSE: To remove effectively residual N-S compounds, dithionic acid, etc., by subjecting N-S compounds present in waste water to a notrous acid treatment, a biological nitrifying denitrification treatment, and an ion-exchange treatment.
CONSTITUTION: The waste water discharged from the desulfurization, the denitrification, or the simultaneous desulfurization and denitrification treatment of flue gas is regulated to 40W60°C and pH 2.0 or less, and than NaNO2 and Ca(NO2)2 are added to the regulated waste water in an amount 1.5W2.0 times as much as N-S compounds present in the waste water to allow them to react for 1W2 hours in order to decompose the N-S compounds into NH4 +, NO2 -, NO3 -, etc., which are, in turn, reduced to N2 by biological nitrification and denitrification in a reductive process, after which the waste water is subjected to a coagulating sedimentation process and a filtration process. Then, residual N-S compounds and COD components arising from N-S compounds and dithionic acid are removed by a weakly basic anionic exchange resin and/or a strongly basic anionic exchange resin, and furthermore, residual COD is removed by active carbon.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13605378A JPS5561998A (en) | 1978-11-04 | 1978-11-04 | Treatment method for flue gas desulfurization and denitrification waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13605378A JPS5561998A (en) | 1978-11-04 | 1978-11-04 | Treatment method for flue gas desulfurization and denitrification waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5561998A true JPS5561998A (en) | 1980-05-10 |
| JPS5720877B2 JPS5720877B2 (en) | 1982-05-01 |
Family
ID=15166073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13605378A Granted JPS5561998A (en) | 1978-11-04 | 1978-11-04 | Treatment method for flue gas desulfurization and denitrification waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5561998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531229A (en) * | 2011-11-16 | 2012-07-04 | 常州江南电力环境工程有限公司 | Comprehensive treatment process of desulfuration waste water |
| JP2015504368A (en) * | 2011-11-30 | 2015-02-12 | ローム アンド ハース カンパニーＲｏｈｍ Ａｎｄ Ｈａａｓ Ｃｏｍｐａｎｙ | Coke wastewater treatment |
| CN105858971A (en) * | 2016-06-13 | 2016-08-17 | 天津市环境保护科学研究院 | Enrichment method for nitrate in fresh water body and application |
-
1978
- 1978-11-04 JP JP13605378A patent/JPS5561998A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531229A (en) * | 2011-11-16 | 2012-07-04 | 常州江南电力环境工程有限公司 | Comprehensive treatment process of desulfuration waste water |
| JP2015504368A (en) * | 2011-11-30 | 2015-02-12 | ローム アンド ハース カンパニーＲｏｈｍ Ａｎｄ Ｈａａｓ Ｃｏｍｐａｎｙ | Coke wastewater treatment |
| CN105858971A (en) * | 2016-06-13 | 2016-08-17 | 天津市环境保护科学研究院 | Enrichment method for nitrate in fresh water body and application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5720877B2 (en) | 1982-05-01 |
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