Hybrid sorbents in metal ions removal from water and wastewater
Journal Title: CHEMIK nauka-technika-rynek - Year 2012, Vol 66, Issue 11
Abstract
The possibility of hybryd ion exchangers (HIX) application in the removal of heavy metal ions was presented. They combine the unique properties of hydrated metal oxides with the mechanical and thermal stability of synthetic ion exchangers. In the investigations the commercial ion exchangers Lewatit FO36 and Purolite Arsen Xnp were used. The kinetics of the sorption process of Cu(II) and Zn(II) in the presence of IDS (iminodisuccinic acid) as well as As(V) and Cr(VI) was analyzed. Additionally the effect of the initial concentration, the phase contact time, pH and temperature was also studied. To describe the sorption, the equation of the pseudo first order (PF-order) and pseudo second order (PS-order) were applied. Taking into account the possibility of applying these ions on the large scale the parameters of the adsorption process were estimated based on the linear form of the Langmuir, Freundlich, Temkin and Dubinin-Radushevish isotherms
Authors and Affiliations
Dorota Kołodyńska, Maciej Kowalczyk, Marzena Gęca, Zbigniew Hubicki
Keywords
Related Articles
- EP ID EP135383
- DOI -
- Views 68
- Downloads 0
Azo dyes – biological activity and synthetic strategy
Azo dyes are the largest and the most popular group of dyes demonstrating the full palette of colors. These compounds, containing –N=N– group as a characteristic chromophore, are mainly obtained in diazotization and coup...
Lactones with a fragrance properties
Lactones are organic compounds that are widely distributed in nature. Occur in plants, animals fulfilling often an important role in the life processes [1]. Lactones are interesting object of study, due to the wide ra...
Ion-exchange membranes for low-temperature fuel cells
The paper presents method for obtaining anion-exchange polymer membrane based on polyetherimide. The studies have shown that obtained alkaline anion-exchange membrane is thermally stable and has high specific conductance...
Wpływ molibdenianu(VI) sodu na korozję stali węglowej
Zbadano wpływ stężenia molibdenianu(VI) sodu na korozję elek- trochemiczną stali węglowej S235 w kwaśnych roztworach zawierają- cych jony chlorków i azotanowe(V). Na podstawie przeprowadzonych badań wyznaczono p...
Pozwolenie zintegrowane dla instalacji do elektrochemicznej obróbki stali chromowo-niklowych
Przedsiębiorstwa chemiczne na terenie Unii Europejskiej muszą uzyskać Pozwolenie Zintegrowane dla instalacji do powierzchniowej obróbki metali, jeżeli łączna objętość wanien procesowych przekracza 30 m[sup]3[/sup]. Spośr...