Search academic texts

Information × Registration Number 0218U001056, 0113U000833 , R & D reports Title Selective extraction of inorganic toxicants sorption and hybrid methods based on research forms their presence in aquatic systems popup.stage_title Head Pshinko Galina Nikolaevna, Registration Date 12-01-2018 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Objects of research -- sorbents for purifying aqueous media from ecotoxicants. The purpose - the development of sorption materials for the selective extraction of inorganic toxicants based on the deepening of ideas about the forms of their occurrence in water systems by sorption and hybrid methods. Methods of investigation - X-ray, spectrophotometric. Theoretical and practical results - the extraction of phosphate ions by various metal Zn / Al- and Mg/Fe-layered double hydroxides - carbonate (LDH) and calcined (CLDH) forms has been investigated. It has been shown that the sorption properties of these materials are significantly influenced by their composition, heat treatment and pH of the aqueous solution. The results of the study on the effect of the [Mg(II)]/[Fe(III)] ratio in the composition of the LDH on their sorption capacity with respect to phosphate ions have shown that they are most effective in extracting said anions from aqueous media over a wide range of pH ( from 3,0 to 9.0) are calcined forms of investigated sorbents with a ratio of [Mg(II)]/[Fe(III)] 2:1 and 3: the limit values of adsorption are 90.9 and 91.7 mg/g, respectively. The calcined forms of the investigated sorbents are more effective than their initiall carbonates. Field of application - environmental protection. Product Description popup.authors Бартницький Олександр Євгенович Мацибура Галина Савівна Пузирна Любов Миколаївна Шунков Василь Сергійович Юрлова Людмила Юріївна Яцик Богдан Петрович popup.nrat_date 2020-04-02 Close