JPS5458973A - Incineration of chromium-containing sludge - Google Patents
Incineration of chromium-containing sludgeInfo
- Publication number
- JPS5458973A JPS5458973A JP12493077A JP12493077A JPS5458973A JP S5458973 A JPS5458973 A JP S5458973A JP 12493077 A JP12493077 A JP 12493077A JP 12493077 A JP12493077 A JP 12493077A JP S5458973 A JPS5458973 A JP S5458973A
- Authority
- JP
- Japan
- Prior art keywords
- chromium
- combustion gas
- incinerated ash
- partial combustion
- reducing furnace
- 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
Landscapes
- Gasification And Melting Of Waste (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To incinerate chromium-containing sludge at low cost, by introducing partial combustion gas on the bed of a fluidized incinerator and incinerated ash containing sexivalent chromium into a reducing furnace.
CONSTITUTION: The chromium-containing sludge 7 is partly burned while a quantity of primary air 5 less than the theoretical quantity is supplied through an air box 2 to the bed 3 whereon the sludge 7 and, if necessary, auxiliary fuel 6 are provided. The partial combustion gas produced thereby is introduced into the reducing furnace 11, and the incinerated ash produced thereby and containing sexivalent chromium is also introduced into the reducing furnace 11 through a free board 4, a gas cooler 17 and an incinerated ash dust collector 18 so that the sexivalent chromium of the incinerated ash is reduced to trivalent chromium by the partial combustion gas of high temperature. Thereafter, the partial combustion gas is introduced into the free board 4 by a circulating blower 15 and then completely burned by secondary air 8. Therefore, the reduction is performed without using special high-temperature gas
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12493077A JPS5830487B2 (en) | 1977-10-18 | 1977-10-18 | Incineration method for chromium-containing sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12493077A JPS5830487B2 (en) | 1977-10-18 | 1977-10-18 | Incineration method for chromium-containing sludge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5458973A true JPS5458973A (en) | 1979-05-12 |
JPS5830487B2 JPS5830487B2 (en) | 1983-06-29 |
Family
ID=14897676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12493077A Expired JPS5830487B2 (en) | 1977-10-18 | 1977-10-18 | Incineration method for chromium-containing sludge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5830487B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998049355A1 (en) * | 1997-04-28 | 1998-11-05 | Kaszas Savos Melania | Process and device for recovering raw materials from waste and residues |
JP2008275176A (en) * | 2006-06-26 | 2008-11-13 | Takuma Co Ltd | Fluid bed-type combustion device using organic substance including chrome as fuel and detoxifying method of fly ash from fluid bed-type combustion device |
ITTV20120029A1 (en) * | 2012-02-27 | 2013-08-28 | C S R S R L Ct Sviluppo Ricer Che | METHOD AND PLANT FOR WASTE TREATMENT |
JP5872092B1 (en) * | 2015-06-23 | 2016-03-01 | 株式会社神鋼環境ソリューション | Radioactive substance removal method and radioactive substance removal system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6088981U (en) * | 1983-11-26 | 1985-06-18 | エムテックスマツムラ株式会社 | Opening/closing device for tile slot in automatic mahjong table |
JP5199616B2 (en) * | 2007-07-27 | 2013-05-15 | 株式会社タクマ | Combustion method for suppressing production of hexavalent chromium from chromium-containing fuel |
-
1977
- 1977-10-18 JP JP12493077A patent/JPS5830487B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998049355A1 (en) * | 1997-04-28 | 1998-11-05 | Kaszas Savos Melania | Process and device for recovering raw materials from waste and residues |
CN1075121C (en) * | 1997-04-28 | 2001-11-21 | 梅拉娜·卡斯扎斯-萨沃斯 | Process and device for recovering raw materials from waste and residues |
JP2008275176A (en) * | 2006-06-26 | 2008-11-13 | Takuma Co Ltd | Fluid bed-type combustion device using organic substance including chrome as fuel and detoxifying method of fly ash from fluid bed-type combustion device |
ITTV20120029A1 (en) * | 2012-02-27 | 2013-08-28 | C S R S R L Ct Sviluppo Ricer Che | METHOD AND PLANT FOR WASTE TREATMENT |
JP5872092B1 (en) * | 2015-06-23 | 2016-03-01 | 株式会社神鋼環境ソリューション | Radioactive substance removal method and radioactive substance removal system |
Also Published As
Publication number | Publication date |
---|---|
JPS5830487B2 (en) | 1983-06-29 |
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