JPS55116489A - Treating method for waste liquid of acid washing - Google Patents
Treating method for waste liquid of acid washingInfo
- Publication number
- JPS55116489A JPS55116489A JP2465879A JP2465879A JPS55116489A JP S55116489 A JPS55116489 A JP S55116489A JP 2465879 A JP2465879 A JP 2465879A JP 2465879 A JP2465879 A JP 2465879A JP S55116489 A JPS55116489 A JP S55116489A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- ions
- ferric
- acid washing
- liquid
- 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
Abstract
PURPOSE: To utilize iron component in a waste liquid of acid washing effectively, and to reduce the disposal coat of the waste liquid, by a method wherein ferrous ions in the vitriolic acidic waste liquid formed by means of acid washing are oxidized to ferric ions, magnesium hydroxide is added, and the ferric ions are precipitated and removed as ferric hydroxide.
CONSTITUTION: Hydrogen peroxide is first added to a vitriolic acidic waste liquid, and ferrous ions in the waste liquid are oxidized to ferric ions. Vitriolic ions are dissolved into the liquor as magnesium sulfate, whose solubility to water is high, and ferric ions are precipitated as ferric hydroxide by neutralizing the liquid by adding magnesium hydroxide, and a solid and a liquid are separated. Thus, precipitates formed are the neutralized sludge of iron oxide, whose impurities are little, and can effectively be utilized for iron-manufacturing raw material, Indian red, etc., and cost required for discarding disposal can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2465879A JPS55116489A (en) | 1979-03-02 | 1979-03-02 | Treating method for waste liquid of acid washing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2465879A JPS55116489A (en) | 1979-03-02 | 1979-03-02 | Treating method for waste liquid of acid washing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55116489A true JPS55116489A (en) | 1980-09-08 |
Family
ID=12144239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2465879A Pending JPS55116489A (en) | 1979-03-02 | 1979-03-02 | Treating method for waste liquid of acid washing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55116489A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419246A (en) * | 1982-09-30 | 1983-12-06 | E. I. Du Pont De Nemours & Co. | Removal of heavy metal ions |
| JPS62221491A (en) * | 1986-03-20 | 1987-09-29 | Nippon Steel Corp | Method for surface treatment of concentrated waste liquid |
| JPS6482465A (en) * | 1987-09-25 | 1989-03-28 | Kawasaki Heavy Ind Ltd | Redox battery |
| JP2003019484A (en) * | 2001-07-06 | 2003-01-21 | Tsukishima Kikai Co Ltd | Waste water treatment method for reducing chlorine content in treated sludge |
| CN112777789A (en) * | 2020-12-23 | 2021-05-11 | 云南宇菲工程设计有限责任公司 | Waste acid treatment method |
-
1979
- 1979-03-02 JP JP2465879A patent/JPS55116489A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419246A (en) * | 1982-09-30 | 1983-12-06 | E. I. Du Pont De Nemours & Co. | Removal of heavy metal ions |
| JPS62221491A (en) * | 1986-03-20 | 1987-09-29 | Nippon Steel Corp | Method for surface treatment of concentrated waste liquid |
| JPH0248316B2 (en) * | 1986-03-20 | 1990-10-24 | Nippon Steel Corp | |
| JPS6482465A (en) * | 1987-09-25 | 1989-03-28 | Kawasaki Heavy Ind Ltd | Redox battery |
| JP2003019484A (en) * | 2001-07-06 | 2003-01-21 | Tsukishima Kikai Co Ltd | Waste water treatment method for reducing chlorine content in treated sludge |
| CN112777789A (en) * | 2020-12-23 | 2021-05-11 | 云南宇菲工程设计有限责任公司 | Waste acid treatment method |
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