| Title | Influence of acid/base activation treatment in the performance of recycled electromembrane for fresh water production by electrodialysis |
|---|---|
| ID_Doc | 21611 |
| Authors | Lejarazu-Larrañaga, A; Molina, S; Ortiz, JM; Riccardelli, G; García-Calvo, E |
| Title | Influence of acid/base activation treatment in the performance of recycled electromembrane for fresh water production by electrodialysis |
| Year | 2020 |
| Published | |
| Abstract | In this study, an activation treatment for recycled anion exchange membranes is proposed. Following the circular economy approach, these membranes were prepared by using end-of-life reverse osmosis membranes as mechanical support. The end-of-life membrane was previously used and discarded by desalination plants after overcoming its lifespan. The activation treatment was based on the subsequent immersion of the membranes in diluted acid and alkali solutions. This treatment promoted the complete dissociation of the functional groups in the membrane, making them more reactive to the counter ions. The effects of acid and alkali concentrations and exposition times on the electrochemical properties were studied and the best combination was selected. In such a way, a decrease of 37% in membrane electrical resistance was achieved. The performance of activated and non-activated membranes in brackish water desalination by electrodialysis was compared. The results showed that the proposed activation treatment increased the flux of fresh water more than four-fold (from 1.2 to 4.9 L h(-)(1).m(-2)), with a considerable reduction of energy consumption (from 5.2 to 3.0 kWh.m(-3)) and a great improvement in current efficiency (from 38% to 71%). In conclusion, this work shows a simple and low cost methodology for the improvement of the electrochemical properties of recycled electromembranes and thus, their performance in electrodialysis. (C) 2020 Elsevier Ltd. All rights reserved. |
Similar Articles
| ID | Score | Article |
|---|---|---|
4613
|
Lejarazu-Larrañaga, A; Molina, S; Ortiz, JM; Navarro, R; García-Calvo, E Circular economy in membrane technology: Using end-of-life reverse osmosis modules for preparation of recycled anion exchange membranes and validation in electrodialysis(2020) | |
| 9964
|
Herrero-Gonzalez, M; Ibañez, R Chemical and Energy Recovery Alternatives in SWRO Desalination through Electro-Membrane Technologies(2021)Applied Sciences-Basel, 11.0, 17 | |
| 21196
|
Pompa-Pernía, A; Molina, S; Lejarazu-Larrañaga, A; Landaburu-Aguirre, J; García-Calvo, E Validation of Recycled Nanofiltration and Anion-Exchange Membranes for the Treatment of Urban Wastewater for Crop Irrigation(2022)Membranes, 12.0, 8 | |
| 14677
|
Cerrillo-Gonzalez, MD; Villen-Guzman, M; Rodriguez-Maroto, JM; Paz-Garcia, JM Metal Recovery from Wastewater Using Electrodialysis Separation(2024)Metals, 14, 1 | |
| 23206
|
Cassaro, C; Virruso, G; Culcasi, A; Cipollina, A; Tamburini, A; Micale, G Electrodialysis with Bipolar Membranes for the Sustainable Production of Chemicals from Seawater Brines at Pilot Plant Scale(2023)Acs Sustainable Chemistry & Engineering, 11, 7 | |
| 22140
|
Herrero-Gonzalez, M; López, J; Virruso, G; Cassaro, C; Tamburini, A; Cipollina, A; Cortina, JL; Ibañez, R; Micale, G Analysis of Operational Parameters in Acid and Base Production Using an Electrodialysis with Bipolar Membranes Pilot Plant(2023)Membranes, 13.0, 2 | |
| 3910
|
Landaburu-Aguirre, J; García-Pacheco, R; Molina, S; Rodríguez-Sáez, L; Rabadán, J; García-Calvo, E Fouling prevention, preparing for re-use and membrane recycling. Towards circular economy in RO desalination(2016) | |
| 25909
|
dos Santos, AB; Giacobbo, A; Rodrigues, MAS; Bernardes, AM Electrodeionization for Wastewater Reuse in Petrochemical Plants(2024)Water, 16, 3 | |
| 8957
|
Contreras-Martínez, J; García-Payo, C; Arribas, P; Rodríguez-Sáez, L; Lejarazu-Larrañaga, A; García-Calvo, E; Khayet, M Recycled reverse osmosis membranes for forward osmosis technology(2021) | |
| 12506
|
Reig, M; Casas, S; Valderrama, C; Gibert, O; Cortina, JL Integration of monopolar and bipolar electrodialysis for valorization of seawater reverse osmosis desalination brines: Production of strong acid and base(2016) |