JPS5524577A - Oxidation-reduction treatment method - Google Patents
Oxidation-reduction treatment methodInfo
- Publication number
- JPS5524577A JPS5524577A JP9807078A JP9807078A JPS5524577A JP S5524577 A JPS5524577 A JP S5524577A JP 9807078 A JP9807078 A JP 9807078A JP 9807078 A JP9807078 A JP 9807078A JP S5524577 A JPS5524577 A JP S5524577A
- Authority
- JP
- Japan
- Prior art keywords
- oxidation
- agent
- treatment
- reduction treatment
- difference
- 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
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
PURPOSE: To inject a proper amt. of a reducing agent, in oxidation-reduction treatment, by previously calculating the difference between the oxidation-reduction potential of a soln. before treatment and that at a desired value to control the amt. of the agent to be injected.
CONSTITUTION: In oxidation-reduction treatment, e.g. reduction treatment of waste contg. polyvalent metal ion such as hexavalent chromium ion using sodium hydrogensulfite as a reducing agent, the difference between the oxidation-reduction potential of the waste water before treatment and that at a desired treatment value is calculated previously, and this difference is detected to control the amt. of the agent to be injected. Thus, excess addn. of the agent is prevented to considerably save the agent.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9807078A JPS5524577A (en) | 1978-08-10 | 1978-08-10 | Oxidation-reduction treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9807078A JPS5524577A (en) | 1978-08-10 | 1978-08-10 | Oxidation-reduction treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5524577A true JPS5524577A (en) | 1980-02-21 |
Family
ID=14210072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9807078A Pending JPS5524577A (en) | 1978-08-10 | 1978-08-10 | Oxidation-reduction treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524577A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194479A (en) * | 2009-02-26 | 2010-09-09 | Nippon Rensui Co Ltd | Pure-water production apparatus |
| JP2016059473A (en) * | 2014-09-16 | 2016-04-25 | 株式会社神戸製鋼所 | Method for suppressing hexavalent chromium elution |
| CN105858973A (en) * | 2016-06-14 | 2016-08-17 | 沧州泓海化工有限公司 | Hexavalent-chromium wastewater treatment technology |
| CN112782247A (en) * | 2021-02-24 | 2021-05-11 | 宝钢湛江钢铁有限公司 | Method for monitoring concentration of hexavalent chromium on line in treatment process of silicon steel chromium-containing coating waste liquid |
-
1978
- 1978-08-10 JP JP9807078A patent/JPS5524577A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194479A (en) * | 2009-02-26 | 2010-09-09 | Nippon Rensui Co Ltd | Pure-water production apparatus |
| JP2016059473A (en) * | 2014-09-16 | 2016-04-25 | 株式会社神戸製鋼所 | Method for suppressing hexavalent chromium elution |
| CN105858973A (en) * | 2016-06-14 | 2016-08-17 | 沧州泓海化工有限公司 | Hexavalent-chromium wastewater treatment technology |
| CN112782247A (en) * | 2021-02-24 | 2021-05-11 | 宝钢湛江钢铁有限公司 | Method for monitoring concentration of hexavalent chromium on line in treatment process of silicon steel chromium-containing coating waste liquid |
| CN112782247B (en) * | 2021-02-24 | 2022-03-18 | 宝钢湛江钢铁有限公司 | Method for monitoring concentration of hexavalent chromium on line in treatment process of silicon steel chromium-containing coating waste liquid |
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