FIELD: waste water treatment. SUBSTANCE: acidic metal-containing waste waters formed on chemical and petrochemical plants employing acid metal-containing catalysts are neutralized by mixing with sulfur-bearing industrial waste waters containing alkali, which are preliminarily oxidized. Mixing process is carried out in turbulent mode at Reynolds numbers Re > 1000 until pH of mixture reaches 7.0- 11. At this moment, stable suspension of heavy metal hydroxides is formed. EFFECT: enabled formation of precipitates virtually not depositing on sewer pipeline walls. 3 cl, 1 tbl, 13 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF INTEGRATED SEWAGE SYSTEM TREATMENT FOR CONTAMITATING AGENTS INCLUDING OIL AND GREEZY PRODUCTS | 2007 |
|
RU2342498C1 |
| METHOD OF TREATMENT OF SULFUROUS-ALKALINE SEWAGE AND THE INSTALLATION FOR ITS REALIZATION | 2003 |
|
RU2245849C1 |
| METHOD OF TREATMENT OF TITANIUM AND MAGNESIUM INDUSTRY SEWAGE | 2006 |
|
RU2330816C2 |
| METHOD OF ALKALI PURIFICATION OF PYROLYSIS GASES | 2001 |
|
RU2199374C1 |
| METHOD OF TREATMENT OF SEWAGE WATERS OF TITANIUM-MAGNESIUM PRODUCTION | 1998 |
|
RU2141456C1 |
| METHOD OF TREATMENT OF SULFUROUS-ALKALINE SEWAGE FROM SULFIDES | 1994 |
|
RU2078053C1 |
| TREATMENT OF EFFLUENTS OF TITANIUM-MAGNESIUM PRODUCTION | 2013 |
|
RU2538900C1 |
| METHOD OF THE LOCAL REACTANT PURIFICATION OF THE SPENT CONCENTRATED SOLUTIONS FROM IONS OF THE HEAVY METALS AND MANGANESE | 2005 |
|
RU2299866C2 |
| WATER PRE-CONDITIONING METHOD | 2006 |
|
RU2316479C1 |
| ALKALI PURIFICATION METHOD OF PYROLISIS GASES | 2006 |
|
RU2329090C1 |
