The description of some adsorption properties and behaviour of oxycellulose with Fe2+ ions is presented. Filter media from oxycelluloses materials have enormous sorption activity. There is described a sorption mechani...The description of some adsorption properties and behaviour of oxycellulose with Fe2+ ions is presented. Filter media from oxycelluloses materials have enormous sorption activity. There is described a sorption mechanism of poly 1,4-β-D anhydroglucuronic acid (PAGA). Utilisation of UV-VIS spectroscopy is shown on the adsorption process of optimalisation of oxycelluloses application. Supporting influence is demonstrated on the adsorption isotherms of Fe2+ ions in the competitive environment of NaCl, MgCl2.展开更多
Natural cellulose and oxycellulose are heterogeneous highly hydrated substances. They have the same chemical composition, but different size of molecules and representation of COOH groups organized into complex supram...Natural cellulose and oxycellulose are heterogeneous highly hydrated substances. They have the same chemical composition, but different size of molecules and representation of COOH groups organized into complex supramolecular structure. The oxycellulosic adsorption capacity of organic cationic dyes increases with increasing -COOH group content and distinctly increases with other competitive ions in the aqueous solution.展开更多
A filter media was developed comprising ionic activated cellulosic material with enormous sorption activity to ions-active dissolved and colloidal substances in aqueous systems evoking so-called surface flocculation a...A filter media was developed comprising ionic activated cellulosic material with enormous sorption activity to ions-active dissolved and colloidal substances in aqueous systems evoking so-called surface flocculation and a filling material having a filter effect. The dilemma of the art of low sorption efficiency and high flow rate of filtrated aqueous dispersions without sacrificing its separation efficiency of fines has been solved by use of activated cellulosic material having multi-fold (roughly tenfold to hundredfold) sorption capacity for ions-active dissolved and submicron particulate contaminants compared to untreated cellulosic material.展开更多
文摘The description of some adsorption properties and behaviour of oxycellulose with Fe2+ ions is presented. Filter media from oxycelluloses materials have enormous sorption activity. There is described a sorption mechanism of poly 1,4-β-D anhydroglucuronic acid (PAGA). Utilisation of UV-VIS spectroscopy is shown on the adsorption process of optimalisation of oxycelluloses application. Supporting influence is demonstrated on the adsorption isotherms of Fe2+ ions in the competitive environment of NaCl, MgCl2.
文摘Natural cellulose and oxycellulose are heterogeneous highly hydrated substances. They have the same chemical composition, but different size of molecules and representation of COOH groups organized into complex supramolecular structure. The oxycellulosic adsorption capacity of organic cationic dyes increases with increasing -COOH group content and distinctly increases with other competitive ions in the aqueous solution.
基金supported by the Ministry of Education,Youth and Sports of the Czech Republic under the Research Projects VEPA EE2.3.20.0236.
文摘A filter media was developed comprising ionic activated cellulosic material with enormous sorption activity to ions-active dissolved and colloidal substances in aqueous systems evoking so-called surface flocculation and a filling material having a filter effect. The dilemma of the art of low sorption efficiency and high flow rate of filtrated aqueous dispersions without sacrificing its separation efficiency of fines has been solved by use of activated cellulosic material having multi-fold (roughly tenfold to hundredfold) sorption capacity for ions-active dissolved and submicron particulate contaminants compared to untreated cellulosic material.
