JPS5465173A - Method and apparatus for reducing cod in wet desulfurization - Google Patents
Method and apparatus for reducing cod in wet desulfurizationInfo
- Publication number
- JPS5465173A JPS5465173A JP13084877A JP13084877A JPS5465173A JP S5465173 A JPS5465173 A JP S5465173A JP 13084877 A JP13084877 A JP 13084877A JP 13084877 A JP13084877 A JP 13084877A JP S5465173 A JPS5465173 A JP S5465173A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- tower
- oxidizing
- load
- valves
- 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.)
- Pending
Links
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To restrain the formation of dithionic acid which is an origin of COD, by discharging Ca-containing slurry, which has been charged to an oxidizing tower in order to form gypsum, from the oxidizing tower so as to control the residence time in the tower when the desulfurization load decreases.
CONSTITUTION: Lime slurry discharged from a reaction tank 10 is fed 24 to an oxidizing tower 11, into which is introduced 19 oxidizing air through the bottom of the tower 11 in order to agitate and aerate the slurry, and the air having aerated is released 26. After being oxidized, the slurry is discharged 25 through plural exits installed at a regular interval with different heights, then through one of discharge lines 27W30 by the operation of valves 31W34 installed on the respective lines. At the time of maximum load for the desulfurizing apparatus and maximum slurry rate, the valve 31 only is opened, and only any one of valves 31, 32, 33 is opened according to the decrease in the slurry-feed rate, i.e., the residence time of slurry in the tower 11 is controlled independently of the variation in the load for desulfurization apparatus so as to prevent the dithionic acid from increasing.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13084877A JPS5465173A (en) | 1977-11-02 | 1977-11-02 | Method and apparatus for reducing cod in wet desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13084877A JPS5465173A (en) | 1977-11-02 | 1977-11-02 | Method and apparatus for reducing cod in wet desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5465173A true JPS5465173A (en) | 1979-05-25 |
Family
ID=15044097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13084877A Pending JPS5465173A (en) | 1977-11-02 | 1977-11-02 | Method and apparatus for reducing cod in wet desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5465173A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485701A (en) * | 2016-01-15 | 2016-04-13 | 华北电力大学 | Coal-fired power generation system deeply and integrally provided with system for desulfurizing and decarburizing calcium-based sorbent in sequence |
| WO2016175163A1 (en) * | 2015-04-27 | 2016-11-03 | 三菱日立パワーシステムズ株式会社 | Method and device for treating wastewater from gas-cooler cleaning |
-
1977
- 1977-11-02 JP JP13084877A patent/JPS5465173A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016175163A1 (en) * | 2015-04-27 | 2016-11-03 | 三菱日立パワーシステムズ株式会社 | Method and device for treating wastewater from gas-cooler cleaning |
| JP2016203121A (en) * | 2015-04-27 | 2016-12-08 | 三菱日立パワーシステムズ株式会社 | Cleaning wastewater treatment method and apparatus for gas cooler |
| CN105485701A (en) * | 2016-01-15 | 2016-04-13 | 华北电力大学 | Coal-fired power generation system deeply and integrally provided with system for desulfurizing and decarburizing calcium-based sorbent in sequence |
| CN105485701B (en) * | 2016-01-15 | 2017-10-10 | 华北电力大学 | With the coal generating system of calcium-base absorbing agent order decarbonization desulfurization system Deep integrating |
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