JPS5458973A - Incineration of chromium-containing sludge - Google Patents

Incineration of chromium-containing sludge

Info

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
Application number
JP12493077A
Other languages
Japanese (ja)
Other versions
JPS5830487B2 (en
Inventor
Yuya Yamahata
Katsunori Takahashi
Kazuhiko Oi
Tamotsu Takebayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP12493077A priority Critical patent/JPS5830487B2/en
Publication of JPS5458973A publication Critical patent/JPS5458973A/en
Publication of JPS5830487B2 publication Critical patent/JPS5830487B2/en
Expired legal-status Critical Current

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
JP12493077A 1977-10-18 1977-10-18 Incineration method for chromium-containing sludge Expired JPS5830487B2 (en)

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)

* Cited by examiner, † Cited by third party
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 Fluidized bed combustion apparatus using chromium-containing organic matter as fuel and method for detoxifying fly ash from fluidized bed combustion apparatus
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (5)

* Cited by examiner, † Cited by third party
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 Method and apparatus for recovering heavy metal raw materials from waste and scrap
JP2008275176A (en) * 2006-06-26 2008-11-13 Takuma Co Ltd Fluidized bed combustion apparatus using chromium-containing organic matter as fuel and method for detoxifying fly ash from fluidized bed combustion apparatus
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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