| 摘要 |
<p>A method for water treatment with removing and separating polyvalent metals ions by processing water by complex former, ultrafiltration and obtaining mixture of metals ions, at that synthesized oligourethane bissalicytates are used as complex former. Oligourethane bissalicytates form stable complexes with ions of Fe3+, Co2+, Ni2+, Cu2+, Cd2+, Mn2+, Pb2+, UO22+, TiO2+ of aqueous media, degree of polyvalent metals removal is of 96-99 %, complexes are stable at pH=5.0-6.0 and are failed in acid medium, complexes stability constants considerably differ one from another and failed at different values of pH, which allows to selectively separate polyvalent metals ions from aqueous solutions.</p> |
