JPS5745387A - Treatment of mercury containing waste liquid - Google Patents
Treatment of mercury containing waste liquidInfo
- Publication number
- JPS5745387A JPS5745387A JP10981181A JP10981181A JPS5745387A JP S5745387 A JPS5745387 A JP S5745387A JP 10981181 A JP10981181 A JP 10981181A JP 10981181 A JP10981181 A JP 10981181A JP S5745387 A JPS5745387 A JP S5745387A
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- metallic
- copper
- fractionated
- waste 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.)
- Granted
Links
Abstract
PURPOSE: To remove mercury and the like efficiently, and to purify mercury-contg. waste liquid to a discharge standard by adding copper salt and iron component to said waste liquid, performing reduction treatment and neutralizing a liquid phase after solid-liquid separation, and recycling the copper and iron component separated from the solids.
CONSTITUTION: Copper salt is added to mercury-contg. waste liquid 1 to control its pH and further an iron component is added under stirring and intimate mixing to allow mercury and copper to reduce. This is subjected to solid-liquid separation and an alkali such as NaOH is added to the 1st filtrate 2 thereof and the liquid is filtered. The filtrate 3 thereof is neutralized and released. The 1st residues 10 filtered in the 2nd stage are dry distilled 11, and is fractionated to metallic mercury 12, metallic copper 13 and metallic iron 14, which are further magnetically fractionated. The fractionated metallic copper 13 is dissolved in an acid to copper salt which is recycled together with the metallic iron 14 to the 1st stage. The 2nd residues 4 filtered in the 3rd stage are dry distilled 7, and are fractionated to metallic mercury 6 and the 3rd residue 5 contg. Fe hydroxide, Cu hydroxide, and hydroxide of a slight amount of heavy metals, which are respectively recovered.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10981181A JPS5745387A (en) | 1981-07-13 | 1981-07-13 | Treatment of mercury containing waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10981181A JPS5745387A (en) | 1981-07-13 | 1981-07-13 | Treatment of mercury containing waste liquid |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5008380A Division JPS56147682A (en) | 1980-04-15 | 1980-04-15 | Treatment for waste liquid containing mercury by activated copper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5745387A true JPS5745387A (en) | 1982-03-15 |
| JPS6315038B2 JPS6315038B2 (en) | 1988-04-02 |
Family
ID=14519798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10981181A Granted JPS5745387A (en) | 1981-07-13 | 1981-07-13 | Treatment of mercury containing waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5745387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312499B1 (en) * | 1999-05-07 | 2001-11-06 | Institute Of Gas Technology | Method for stabilization of liquid mercury |
-
1981
- 1981-07-13 JP JP10981181A patent/JPS5745387A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312499B1 (en) * | 1999-05-07 | 2001-11-06 | Institute Of Gas Technology | Method for stabilization of liquid mercury |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315038B2 (en) | 1988-04-02 |
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