boron removal from water and wastewater using new polystyrene-based resin grafted with glycidol
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ID: 253470
2015
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Abstract
A divinylbenzene cross-linked polystyrene resin with amine functional groups (Purolite A170) was grafted with glycidol and characterized as a novel sorbent, GLY-resin, for the oxoborate removal from model solutions and post-crystallization lye. The sorption behavior of GLY-resin was investigated using a batch system. The results showed that the sorption was maximal at pH=9.5. The equilibrium was achieved after 24 h. Calculations based on Langmuir model show the monolayer sorption capacity qm=1.3 mg/g and the fitted experimental data chemisorption as a dominating mechanism of boron sorption on GLY-resin. Boron removal from the solution containing 5 mg B/L and post-crystallization lye having a 9.1 mg B/L was 99% and 80% respectively. The thermodynamic calculations indicated the spontaneous and endothermic nature of the sorption process. The pseudo-second-order model adequately described the boron sorption on GLY-resin. Sorption−desorption efficiency was 100%, which means the boron sorption at next cycle did not decrease.
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kluczka2015waterboron
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| Authors | ;Joanna Kluczka;Teofil Korolewicz;Maria Zołotajkin;Jakub Adamek |
| Journal | Advances in therapy |
| Year | 2015 |
| DOI |
10.1016/j.wri.2015.05.001
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