JPS54132473A - Treating method for waste matter containing chromium - Google Patents
Treating method for waste matter containing chromiumInfo
- Publication number
- JPS54132473A JPS54132473A JP4048878A JP4048878A JPS54132473A JP S54132473 A JPS54132473 A JP S54132473A JP 4048878 A JP4048878 A JP 4048878A JP 4048878 A JP4048878 A JP 4048878A JP S54132473 A JPS54132473 A JP S54132473A
- Authority
- JP
- Japan
- Prior art keywords
- residue
- added
- reducing agent
- burnt
- waste matter
- 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
- 239000002699 waste material Substances 0.000 title abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 229910052804 chromium Inorganic materials 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010828 elution Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To obtain the solid matter not bringing about the secondary environmental pollution with a low cost and low energy, by carrying out pressurized steam treatment after forming fine powdered burnt redidue containing Cr under the existence of Ca component and reducing agent.
CONSTITUTION: Substance mainly composed of CaCO3, is added to waste matter containing Cr and is burnt or waste matter containing slaked lime or Ca, is added to burnt residue. Thus, Ca component in the residue is regulated at more than 10wt.% (calculated in terms of Ca). Next, compression forming is carried out after single or plural number of 1W30wt.%, preferably 5W15%, of reducing agent (Fe++ salts, sulfurous acid or its salts, organic carbons, Mg, Ca, Zr or waste matter containing the above metal etc.), is added to the residue and is mixed, in order to prevent the elution of hexavalent Cr from the solid matter. Or, the surface is covered by the above mentioned reducing agent after formed body is made. Next, the formed body is silidified by carrying out steam autoclave treatment and on occasion demands, solidifying accelerator, such as silicic acid matter, clay etc., is added to the residue in order to carry out solidification fully.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4048878A JPS54132473A (en) | 1978-04-06 | 1978-04-06 | Treating method for waste matter containing chromium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4048878A JPS54132473A (en) | 1978-04-06 | 1978-04-06 | Treating method for waste matter containing chromium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54132473A true JPS54132473A (en) | 1979-10-15 |
Family
ID=12581964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4048878A Pending JPS54132473A (en) | 1978-04-06 | 1978-04-06 | Treating method for waste matter containing chromium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54132473A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338134A (en) * | 1979-07-27 | 1982-07-06 | Handelskontor Ludbert Graf Zu Munster Gmbh & Co. | Process for binding waste liquor or sludge |
| JPH04111521U (en) * | 1991-03-13 | 1992-09-28 | 日野自動車工業株式会社 | piston cooling system |
| JP2008155101A (en) * | 2006-12-22 | 2008-07-10 | Taiheiyo Cement Corp | Elution restraining material of hexavalent chromium |
| CN104496218A (en) * | 2014-11-26 | 2015-04-08 | 长沙紫宸科技开发有限公司 | Method for preparing active slag powder by utilizing chromium slag and chromium sludge |
-
1978
- 1978-04-06 JP JP4048878A patent/JPS54132473A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338134A (en) * | 1979-07-27 | 1982-07-06 | Handelskontor Ludbert Graf Zu Munster Gmbh & Co. | Process for binding waste liquor or sludge |
| JPH04111521U (en) * | 1991-03-13 | 1992-09-28 | 日野自動車工業株式会社 | piston cooling system |
| JP2008155101A (en) * | 2006-12-22 | 2008-07-10 | Taiheiyo Cement Corp | Elution restraining material of hexavalent chromium |
| CN104496218A (en) * | 2014-11-26 | 2015-04-08 | 长沙紫宸科技开发有限公司 | Method for preparing active slag powder by utilizing chromium slag and chromium sludge |
| CN104496218B (en) * | 2014-11-26 | 2016-06-01 | 长沙紫宸科技开发有限公司 | A kind of method utilizing chromium slag and chromium mud to prepare active slag powder |
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