FIELD: chemistry.
SUBSTANCE: method involves sorption using sorbent and elution of sorbed ions. For the sorption, stationary phases are introduced by introducing polystyrene-azo-benzene-azo-rhodanine polymeric chelating sorbent into the solution of the initial waters and the sorption process is carried out. The process is carried out at room temperature, pH 6-8 in dynamic mode with a water flow rate of 2 ml/min.
EFFECT: ability to selectively concentrate ions of cadmium and zinc in the presence of ions, a high sorption capacity of the sorbent for the ion of cadmium and zinc, the possibility of sorption in a weakly acidic and neutral medium, repeated use.
2 tbl
| Title | Year | Author | Number | 
|---|---|---|---|
| METHOD OF EXTRACTING CADMIUM FROM WASTE AND NATURAL WATER | 2009 | 
 | RU2417952C1 | 
| METHOD OF GROUP ELEMENT EXTRACTION FROM NATURAL WATERS AND SEWAGE | 0 | 
 | SU1792923A1 | 
| METHOD OF EXTRACTING IONS OF HEAVY METALS FROM WATER SOLUTIONS | 2006 | 
 | RU2329098C1 | 
| METHOD FOR EXTRACTION OF HEAVY METAL IONS FROM AQUEOUS SOLUTIONS | 2007 | 
 | RU2351543C1 | 
| METHOD FOR GROUP EXTRACTION OF HEAVY METALS AND MODIFIED SORBENT THEREFOR | 2013 | 
 | RU2546734C1 | 
| METHOD OF EXTRACTING IONS OF HEAVY METALS FROM AQUEOUS SOLUTIONS | 2010 | 
 | RU2438995C1 | 
| METHOD OF EXTRACTION OF MANGANESE, IRON, ZINC, COPPER, AND LEAD OUT OF NATURAL AND SEWAGE WATERS | 1990 | 
 | RU2010770C1 | 
| METHOD FOR MODIFYING POLYSACCHARIDE SORBENTS FOR EXTRACTION OF HEAVY METAL IONS FROM AQUEOUS SOLUTIONS | 2020 | 
 | RU2750149C1 | 
| METHOD OF PURIFICATION OF THE WATER SOLUTIONS BY SORPTION FROM THE IONS OF THE HEAVY METALS | 2006 | 
 | RU2302376C1 | 
| METHOD FOR JOINTLY RECOVERING CU, FE, AND ZN FROM NATURAL AND DRINKING WATERS | 2001 | 
 | RU2224032C2 | 
Authors
Dates
2017-06-13—Published
2016-03-30—Filed