TY - JOUR
T1 - Electrodialytic 2-compartment cells for emerging organic contaminants removal from effluent
AU - Ferreira, A. R.
AU - Couto, Nazaré
AU - Guedes, Paula
AU - Pinto, Joana
AU - Mateus, Eduardo P.
AU - Ribeiro, Alexandra B.
N1 - Sem PDF conforme despacho.
info:eu-repo/grantAgreement/FCT/5876/147274/PT#
info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F81122%2F2011/PT#
The authors would like to thank AdP, Dr. Cristina Santos for providing the samples, Eng. Olga Paredes, and the Laboratory of Control and Processes for the assistance. Financial support was provided by UID/AMB/04085/2013 and 4KET4Reuse (SOE1/P1/E0253), co-financed by the European Regional Development Fund (FEDER). A. R. Ferreira acknowledges the project IDS-FunMat-INNO, EIT Raw Materials. N. Couto and P. Guedes acknowledge Fundacao para a Ciencia e a Tecnologia for their Post-Doc fellowships, respectively, SFRH/BPD/81122/2011 and SFRH/BPD/114660/2016.
PY - 2018/9/15
Y1 - 2018/9/15
N2 - The present work discusses the efficiency of the electrodialytic (ED) process to remove emerging organic contaminants (EOCs) from effluent. The ED process was carried out in a cell of two-compartments (2 C-cell) with effluent in either the anode or cathode compartment, separated from the electrolyte compartment through an anion or a cation exchange membrane (AEM and CEM, respectively). As effluent destination might be soil irrigation, and having in mind the nutrient recycling, phosphorus was also monitored in the process. The ED removals showed to be dependent of EOCs characteristics and cell design. Removals were higher when using an AEM (60–72%) than a CEM (8–63%), except for caffeine when the effluent was placed in the cathode, that did not show any removal. When using an AEM with the effluent placed in the anode compartment, all the EOCs (including caffeine) were removed between 57–72%, mainly through electrodegradation phenomena. Regarding phosphorus, a polarity switch may be done to a 2 C-cell with a AEM, depending on the effluent final use. This technology is still in its first steps and, in both cases, further optimization of ED parameters is needed. Still, this technological innovation and cross-cutting research envisages the promotion of economic, social and environmental benefits.
AB - The present work discusses the efficiency of the electrodialytic (ED) process to remove emerging organic contaminants (EOCs) from effluent. The ED process was carried out in a cell of two-compartments (2 C-cell) with effluent in either the anode or cathode compartment, separated from the electrolyte compartment through an anion or a cation exchange membrane (AEM and CEM, respectively). As effluent destination might be soil irrigation, and having in mind the nutrient recycling, phosphorus was also monitored in the process. The ED removals showed to be dependent of EOCs characteristics and cell design. Removals were higher when using an AEM (60–72%) than a CEM (8–63%), except for caffeine when the effluent was placed in the cathode, that did not show any removal. When using an AEM with the effluent placed in the anode compartment, all the EOCs (including caffeine) were removed between 57–72%, mainly through electrodegradation phenomena. Regarding phosphorus, a polarity switch may be done to a 2 C-cell with a AEM, depending on the effluent final use. This technology is still in its first steps and, in both cases, further optimization of ED parameters is needed. Still, this technological innovation and cross-cutting research envisages the promotion of economic, social and environmental benefits.
KW - 2-compartments cell
KW - Cell design
KW - ED process
KW - Effluent
KW - Pharmaceuticals and personal care products
KW - Phosphorus recovery
UR - http://www.scopus.com/inward/record.url?scp=85046848479&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2018.04.066
DO - 10.1016/j.jhazmat.2018.04.066
M3 - Article
C2 - 29759593
AN - SCOPUS:85046848479
VL - 358
SP - 467
EP - 474
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
SN - 0304-3894
ER -