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    Characterization of a chitosan biopolymer and arsenate removal for drinking water treatment
    (CRC Press/Balkema, 2014) Annaduzzaman M.; Bhattacharya P.; Ersoz M.; Lazarova Z.
    Chitosan biopolymer with a deacetylation degree of 85%, was assessed for its capability to adsorb As(V) from drinking water by batch experiments. To characterize the chitosan biopolymer, chitosan was analyzed by FTIR and SEM. The results showed that chitosan is an effective and promising sorbent for As(V) from drinking water. From the batch tests, results showed a maximum adsorption of 355 ?g/L of As(V) with 1.18 ?g g-1 adsorption capacity at pH 6. The kinetic data, obtained at pH 6 could be fitted with pseudo-second order equation (adsorption capacity: 0.923 ?g g-1) and the process was suitably described by a Freundlich (R2 = 0.9933) model than by a Langmuir model (R2 = 0.9741). The results above indicated that chitosan is a very favorable sorbent for As(V) removal from aqueous solution. © 2014 Taylor & Francis Group.
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    Kinetics of mercury (II) transport through a bulk liquid membrane using macrocyclic compound as carrier
    (2006) Koyuncu H.; Ersoz M.; Yilmaz M.
    [Abstract not Available]
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    Removal of boron from water by donnan dialysis
    (2006) Tor A.; Arslan G.; Cengeloglu Y.; Ersoz M.
    Removal of boron from aqueous solution was studied through SB-6407 anion exchange membrane by Donnan dialysis method. The effects of concentration, pH, and accompanying anions on feed and receiver phase composition were investigated. The flux of boron with respect to the concentration, pH, and the effect of the accompanying anions (Cl- and SO4 -2) were obtained between (0.472 ± 0.011 - 6.825 ± 0.151)×10-8 mol.cm-2.s-1. With a fix pH 9.5 of the feed phase, the highest boron removal was obtained when pH of the receiver phase was 1. Additionally, transport of boron increased with increase of feed and recevier phase concentration and decreased in the presence of accompanying anions in the feed phase. The transport of boron was also correlated with the flux data and explained according to structure of membrane.