Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water. / Martins, Vitor L.; Ogden, Mark; Jones, Mark R. et al.
Yn: Separation and Purification Technology, Cyfrol 239, 15.05.2020, t. 116522.

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

HarvardHarvard

Martins, VL, Ogden, M, Jones, MR, Trowsdale, SA, Hall, PJ & Jensen, HS 2020, 'Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water', Separation and Purification Technology, cyfrol. 239, tt. 116522. https://doi.org/10.1016/j.seppur.2020.116522

APA

Martins, V. L., Ogden, M., Jones, M. R., Trowsdale, S. A., Hall, P. J., & Jensen, H. S. (2020). Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water. Separation and Purification Technology, 239, 116522. https://doi.org/10.1016/j.seppur.2020.116522

CBE

Martins VL, Ogden M, Jones MR, Trowsdale SA, Hall PJ, Jensen HS. 2020. Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water. Separation and Purification Technology. 239:116522. https://doi.org/10.1016/j.seppur.2020.116522

MLA

VancouverVancouver

Martins VL, Ogden M, Jones MR, Trowsdale SA, Hall PJ, Jensen HS. Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water. Separation and Purification Technology. 2020 Mai 15;239:116522. Epub 2020 Ion 11. doi: 10.1016/j.seppur.2020.116522

Author

Martins, Vitor L. ; Ogden, Mark ; Jones, Mark R. et al. / Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water. Yn: Separation and Purification Technology. 2020 ; Cyfrol 239. tt. 116522.

RIS

TY - JOUR

T1 - Opportunities for coupled electrochemical and ion-exchange technologies to remove recalcitrant micropollutants in water

AU - Martins, Vitor L.

AU - Ogden, Mark

AU - Jones, Mark R.

AU - Trowsdale, Sam A.

AU - Hall, Peter J.

AU - Jensen, Henriette S.

PY - 2020/5/15

Y1 - 2020/5/15

N2 - Micropollutants are found in many waters at concentrations that are concerning for living and environmental systems. They are usually characterised as being persistent and are generally difficult to remove from the water using traditional techniques. In this work, we investigate a treatment technology that couples electrooxidation of micropollutants with subsequent absorption of charged products and remaining compounds through a mixed strong acid and strong base ion exchange resin. The results clearly show that carbon fibre is a promising electrode material. Electrooxidation of the drug Ibuprofen using carbon fibre in a coulombic efficiency of 13 mC/ppm removed 71% of the compound after two hours (down to 29 ppm). The addition of sodium chloride led to a near doubling of the pseudo-first order reaction rate from 1.7 to 3.0 10−4 s−1. A mix of Ibuprofen and the pesticide Diuron showed similarly promising results and while the overall oxidation decreased the positive effect of sodium chloride was present. Strikingly, coupling electrooxidation with a mixed bed ion exchange resin removed both compounds, decreasing levels of Diuron to below the limit of detection (18 ppb) and Ibuprofen down to 0.8 ppm. The approach shows potential as a treatment technology for the removal of complex pollutants in water.

AB - Micropollutants are found in many waters at concentrations that are concerning for living and environmental systems. They are usually characterised as being persistent and are generally difficult to remove from the water using traditional techniques. In this work, we investigate a treatment technology that couples electrooxidation of micropollutants with subsequent absorption of charged products and remaining compounds through a mixed strong acid and strong base ion exchange resin. The results clearly show that carbon fibre is a promising electrode material. Electrooxidation of the drug Ibuprofen using carbon fibre in a coulombic efficiency of 13 mC/ppm removed 71% of the compound after two hours (down to 29 ppm). The addition of sodium chloride led to a near doubling of the pseudo-first order reaction rate from 1.7 to 3.0 10−4 s−1. A mix of Ibuprofen and the pesticide Diuron showed similarly promising results and while the overall oxidation decreased the positive effect of sodium chloride was present. Strikingly, coupling electrooxidation with a mixed bed ion exchange resin removed both compounds, decreasing levels of Diuron to below the limit of detection (18 ppb) and Ibuprofen down to 0.8 ppm. The approach shows potential as a treatment technology for the removal of complex pollutants in water.

KW - Electrooxidation

KW - Wastewater treatment

KW - Micropollutants

KW - Ion-exchange

U2 - 10.1016/j.seppur.2020.116522

DO - 10.1016/j.seppur.2020.116522

M3 - Article

VL - 239

SP - 116522

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

ER -