No abstract

The process of removing chromium(III) ions from aqueous solutions was investigated with respect to a phosphorus-containing product containing inositol hexaphosphoric acid derivatives obtained from rice bran-rice waste products of Far Eastern breeding varieties. The removal efficiency of chromium(III) ions by phosphorus-containing product depended on their initial concentration and reached 82%. Thus, environmentally friendly polyfunctional chelate materials from rice production wastes could be used to remove metal ions from aqueous solutions.

The process of removal aluminum and cobalt ions from aqueous solutions with a phosphorus-containing product containing inositol hexaphosphoric acid derivatives obtained from rice production wastes of Far Eastern selection varieties – rice flour, and optimal conditions were determined. It is established that the efficiency of removal of metal cations by the phosphorus-containing product depends not only on their nature, but also on the initial concentration of ions in solutions. The degree of extraction of aluminum ions reaches 99%, and cobalt – 76%. The principal possibility of using phosphorus-containing products of plant origin in the development of environmentally safe materials for the removal of metal ions in technologies requiring the use of green chemistry methodology is proposed.