FIELD: purification of sewage, more particularly recovery of arsenic from aqueous solutions. SUBSTANCE: method comprises using sulfoxide cationite for sorption of arsenic from aqueous solutions and addition of iron (III) nitrate to arsenic-containing solution in amount of 0.15- 0.4 g of (Fe3+ per 1 and also nitric acid to pH of 1.3-1.5. EFFECT: method makes it possible to reduce arsenic concentration in solutions being purified to permissible concentration, that is, to increase effectiveness of purification as compared with the prior art method.
| Title | Year | Author | Number |
|---|---|---|---|
| ACID SLUDGE PROCESSING METHOD | 2000 |
|
RU2180677C1 |
| METHOD OF ASSAY OF GENERAL TOXICITY OF SOLID, LIQUID AND GASEOUS MEDIA | 2001 |
|
RU2202619C2 |
| ACID TAR PROCESSING METHOD | 2000 |
|
RU2179571C1 |
| PROCEDURE FOR EXTRACTING ARSENIC FROM WATER SOLUTIONS | 2008 |
|
RU2395600C2 |
| METHOD OF EXTRACTION OF ARSENIC FROM WATER SOLUTION | 2004 |
|
RU2323988C2 |
| METHOD FOR REMOVING ARSENIC COMPOUNDS FROM DRINKING WATER | 2015 |
|
RU2598935C1 |
| TREATMENT METHOD OF REE PHOSPHATE CONCENTRATE | 2015 |
|
RU2612244C1 |
| METHOD OF EXTRACTING RARE EARTH METALS FROM NITROPHOSPHATE SOLUTION IN NITRIC ACID PROCESSING OF APATITE CONCENTRATE | 2014 |
|
RU2559476C1 |
| METHOD OF REMOVING ARSENIC FROM WASTE WATERS AND AQUEOUS SOLUTIONS OF ALKALI METALS | 1993 |
|
RU2100288C1 |
| METHOD OF SORPTION ISOLATION OF RADIONUCLIDES FROM AQUEOUS MEDIA | 1997 |
|
RU2135278C1 |
