Polymer-enhanced ultrafiltration–electrodeionization hybrid system for the removal of boron

Soysüren, Gülsev; İpek, İdil Yılmaz; Arda, Müşerref; Arar, Özgür

doi:10.1039/d3ew00041a

Cited by 3 publications

(1 citation statement)

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“…EDI has also proven to be a valuable technology in the removal of ions from water samples. In past studies, it has been applied to remove different types of ions, such as Co 2+ , Cu 2+ , Ni 2+ , B, Zn 2+ , and NO 3 − ; (Dzyazko et al, 2014; Meyer et al, 2005; Song et al, 2005; Soysüren et al, 2023; Vasilyuk et al, 2004). Hence, it has wide‐ranging industrial and scientific applications.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of electrodeionization for phosphate removal

Emir,

Engindeniz,

Arar

2023

Water Environment Research

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In this study, electrodeionization (EDI) in bath mode was tested regarding its capability to remove phosphate (PO43−) ions from aqueous solutions. Various parameters affecting the phosphate removal rate via EDI were determined. The results showed that the phosphate removal rate depends on the applied voltage and that the optimum potential was 15 V, corresponding to a phosphate removal rate of 97%. Changing the stream rate of the phosphate‐containing solution also affected the phosphate removal rate. Changing the pH of the phosphate‐containing solution from 2 to 6 enhanced the phosphate removal rate from 80% to 97%. The presence of Cl−, NO3−, and SO42− ions did not affect the phosphate removal rate. The highest mass transfer coefficient (k) of phosphate was calculated to be 7.85 × 10−4 m/s, and the flux was calculated to be 3.72 × 10−4 mol/m2 s1 at a flow velocity of 3 L/h. Thus, the study results showed the feasibility of EDI as an alternative membrane process for removing phosphate from aqueous solutions.Practitioner Points Electrodeionization was employed for the removal of phosphate. The removal of phosphate exhibited dependence on applied potential. EDI demonstrated a remarkable 97% efficiency in phosphate removal. The pH of the solution was found to influence the removal rate.

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