FIELD: waste water treatment. SUBSTANCE: waste water is neutralized to pH 3.5-4.8 and ferrous hydroxide is precipitated. As neutralizers, calcium or barium carbonates are used. EFFECT: facilitated water purification. 2 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REMOVING IRON FROM SOLUTIONS | 0 |
|
SU1740464A1 |
| METHOD OF PURIFYING ZINC SOLUTIONS FROM IRON | 0 |
|
SU1514814A1 |
| METHOD OF CLEARANCE OF BEARING HEAVY NON-FERROUS METALS SULFATE SOLUTIONS FROM IRON | 1993 |
|
RU2068007C1 |
| METHOD LF REMOVING IRON FROM SULFATE ZINC SOLUTIONS | 0 |
|
SU1118705A1 |
| METHOD OF IMPROVING EXTRACTION OF VALUABLE COMPONENTS FROM SULPHIDE MATERIAL BY ELECTRIC PULSE TREATMENT | 2014 |
|
RU2559599C1 |
| METHOD FOR PURIFICATION OF MULTICOMPONENT INDUSTRIAL WASTEWATER CONTAINING ZINC AND CHROMIUM | 2022 |
|
RU2792510C1 |
| METHOD OF INTENSE SEWAGE TREATMENT FROM CHROME (III) | 1991 |
|
RU2068396C1 |
| PROCESS FOR PURIFICATION OF ACIDIC SEWAGE FROM ARSENIC AND NON-FERROUS METALS | 0 |
|
SU1717548A1 |
| PURIFICATION OF SOLUTIONS CONTAINING METAL | 1996 |
|
RU2153026C2 |
| METHOD FOR DEPOSITION OF HEAVY NONFERROUS METALS FROM INDUSTRIAL SOLUTIONS AND/OR WASTES | 2015 |
|
RU2601333C1 |
