Atsushi Kondo,† Hiroshi Noguchi,† Lucia Carlucci,‡ Davide M. Proserpio,‡ Gianfranco Ciani,‡ Hiroshi Kajiro,*,§ Tomonori Ohba,† Hirofumi Kanoh,*,† and Katsumi Kaneko† Graduate School of Science, Chiba UniVersity, Yayoi, Inage, Chiba 263-8522, Japan, Nippon Steel Corporation, Shintomi, Futtsu, Chiba 293-8511, Japan, and Dipartimento di Chimica Strutturale e Stereochimica Inorganica, UniVersità di...

Drinking-water treatment residual (WTR) have been proposed as a low-cost alternative sorbent for arsenic (As) - contaminated aquatic and soil systems. However, limited information exists regarding the effect of solution chemistry on As sorption by WTR. A batch incubation study was carried out to investigate the effect of solution pH (3-9) on As(V) sorption by Al- and Fe-based WTR as a function ...

IRMOF-3 nano/microcrystals with controllable morphologies and sizes were successfully obtained by a simple solvothermal method. The shape evolution of IRMOF-3 crystals from cube to truncated cube, cuboctahedron, truncated octahedron and finally to octahedron was achieved by adjusting the amount of surfactant. The surfaces of the IRMOF-3 nano/microstructures are affected by the reaction temperat...

Agro-waste materials such as oats straw (OS) and agave baggasse (AB) have functional groups which are able to bind metal ions. The agro-waste materials studied in this research (acid washed) were chemically characterized and their chromium sorption and desorption capacity was obtained. HNO3, NaOH and EDTA (at different concentrations and temperatures) were used to regenerate partially saturated...

Natural Jordanian sorbent (consisting of primary minerals, i.e., quartz and aluminosilicates and secondary minerals, i.e., calcite and dolomite) was shown to be effective for removing Zn(II), Pb(II) and Co(II) from aqueous solution. The major mineral constitutions of the sorbent are calcite and quartz. Dolomite was present as minor mineral and palygorskite was present as trace mineral. The sorb...

EXAFS spectroscopy has been used to compare the sorption mechanism of Zn and ZnEDTA on goethite (a-FeOOH). In the absence of EDTA, Zn is found to form an inner-sphere surface complex. Based on Zn-0 and Zn-Fe distances, Zn is inferred to be located in a distorted oxygen octahedron which shares edges andlor comers with surface Fe octahedra. EXAFS spectra of ZnEDTA in solution and sorbed on goethi...

Pharmaceutical compounds (PCs) and dissolved organic matter (DOM) are co-introduced into soils by irrigation with reclaimed wastewater. We targeted carbamazepine (CBZ) as a model compound to study the tertiary interactions between relatively polar PCs, DOM, and soil. Sorption-desorption behavior of CBZ was studied with bulk clay soil and the corresponding clay size fraction in the following sys...

Batch sorption study was performed using used black tea leaves (UBTL) as a low-cost adsorbent for the removal of lead (II) from aqueous solutions. Experiments were conducted as a function of contact time, initial metal ion concentration, solution pH and temperature. The sorption of Pb(II) on used tea leaves increases with increase of initial pH of solution upto a certain limit which corresponds...

Cationic amine functional groups are present in many pharmaceuticals, such as oxytetracycline and desvenlafaxine, which are increasingly released into the environment. Sorption, the accumulation of a chemical at the solid-water interface, influences chemical fate and human exposure. As such, this research focuses on cationic amine sorption to montmorillonite, an important component of soil syst...

Batch sorption experiments were performed for the removal of chromium(III) ions from aqueous solutions using Romanian Sphagnum moss peat (untreated and treated with NaCl solution) as sorbent. In order to establish the best conditions for the sorption of chromium(III), the influence of initial pH, contact time, peat dose and metal ion concentration was investigated. The Freundlich, Langmuir and ...