| Title |
Boosting nutrient recovery from AnMBR effluent by means of electrodialysis technology: Operating parameters assessing |
| ID_Doc |
25038 |
| Authors |
Ruiz-Barriga, P; Serralta, J; Bouzas, A; Carrillo-Abad, J |
| Title |
Boosting nutrient recovery from AnMBR effluent by means of electrodialysis technology: Operating parameters assessing |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.jenvman.2024.121712 |
| Abstract |
This work describes a comprehensive assessment of operating parameters of a bench-scale electrodialysis (ED) plant for nutrient concentration from an Anaerobic Membrane BioReactor (AnMBR) effluent. The ED bench-scale plant serves a dual purpose. Firstly, to generate a concentrated stream with a high nutrient content, and secondly, to produce high-quality reclaimed water in the diluted stream, both sourced from real wastewater coming from the effluent of an AnMBR. Two sets of experiments were conducted: 1) short-term experiments to study the effect of some parameters such as the applied current and the type of anionic exchange membrane (AEM), among others, and 2) a long-term experiment to verify the feasibility of the process using the selected parameters. The results showed that ED produced concentrated ammonium and phosphate streams using a 10-cell pair stack with 64 cm(2) of unitary effective membrane area, working in galvanostatic mode at 0.24 A, and operating with an Acid-100-OT anionic exchange membrane. Concentrations up to 740 mg/L and 50 mg/L for NH4-N and PO4-P, respectively, were achieved in the concentrated stream along with removal efficiencies of 70% for ammonium and 60% for phosphate in the diluted stream. The average energy consumption was around 0.47 kWh.m(-3). |
| Author Keywords |
Electrodialysis; Nutrient recovery; Urban wastewater; Limiting current; Circular economy; AnMBR |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001269499200001 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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