| Title | Electro living membrane bioreactor for highly efficient wastewater treatment and fouling mitigation: Influence of current density on process performances |
|---|---|
| ID_Doc | 17248 |
| Authors | Corpuz, MVA; Borea, L; Zarra, T; Hasan, SW; Korshin, GV; Choo, KH; Belgiorno, V; Buonerba, A; Naddeo, V |
| Title | Electro living membrane bioreactor for highly efficient wastewater treatment and fouling mitigation: Influence of current density on process performances |
| Year | 2024 |
| Published | |
| Abstract | The next generation of the self-forming dynamic membrane, referred to in this study as the "Living Membrane (LM)", is a new patented technology based on an encapsulated biological layer that self-forms on a designed coarse-pore size support material during wastewater treatment and acts as a natural membrane filter. Integrating electrochemical processes with wastewater treatment using the LM approach has also been recently studied (the reactor is referred to as the Electro-Living Membrane Bioreactor or e-LMBR). This study investigated the effects of varying current densities, i.e., 0.3, 0.5, and 0.9 mA/cm(2), on the performance of an e-LMBR. The results were also compared with those of the Living Membrane Bioreactor or LMBR (without applied current density). Higher pollutant removals were observed in the presence of the electric field. However, the effect of varying applied current densities on the COD (98-99 %), NH3-N (97-99 %), and PO43- P (100 %) removals was not statistically significant. The more prominent differences (p < 0.05) were observed in the decrease of NO3--N concentrations from mixed liquor to effluent, with increasing current density resulting in lower mean NO3--N effluent concentrations (0.3 mA/cm(2): 6.13 mg/L; 0.5 mA/cm(2): 4.38 mg/L; 0.9 mA/cm(2): 3.70 mg/L). The reduction of NO3--N concentrations as wastewater permeated through the LM layer also confirmed its role in removing nitrogen-containing compounds. Higher current densities resulted in lower concentrations of fouling substances, particularly those of microbial extracellular polymeric substances (EPS) and transparent exopolymer particles (TEPs). The average values of the temporal variation of transmembrane pressure (d(TMP)/d(t)) in the e-LMBR were extremely low, in the range of 0.013-0.041 kPa/day, throughout the operation period. The highest (d(TMP)/d(t)) was observed for the highest current density. However, the TMP values remained below 2 kPa in all the e-LMBR runs even after the initial LM formation stage. |
| https://doi.org/10.1016/j.scitotenv.2024.172896 |
Similar Articles
| ID | Score | Article |
|---|---|---|
26034
|
Cairone, S; Mineo, A; Pollice, A; Belgiorno, V; Mannina, G; Naddeo, V Innovative Membrane Bioreactors for Advanced and Sustainable Wastewater Treatment(2024) | |
| 22082
|
Cairone, S; Mineo, A; Pollice, A; Belgiorno, V; Mannina, G; Naddeo, V Improving Recovery of Valuable Bio-Products from Sewage Sludge Using Innovative Membrane Technologies(2024) | |
| 13764
|
Wang, JL; Wang, KC; Li, WG; Wang, H; Wang, YY Enhancing bioelectrochemical processes in anaerobic membrane bioreactors for municipal wastewater treatment: A comprehensive review(2024) | |
| 25655
|
Rodríguez-Sáez, L; Patsios, SI; Senán-Salinas, J; Landaburu-Aguirre, J; Molina, S; García-Calvo, E A Novel Application of Recycled Ultrafiltration Membranes in an Aerobic Membrane Bioreactor (aMBR): A Proof-of-Concept Study(2022)Membranes, 12, 2 | |
| 19370
|
Bóna, A; Galambos, I; Nemestóthy, N Progress towards Stable and High-Performance Polyelectrolyte Multilayer Nanofiltration Membranes for Future Wastewater Treatment Applications(2023)Membranes, 13.0, 4 | |
| 15024
|
Sugiyama, T; Ito, Y; Hafuka, A; Kimura, K Efficient direct membrane filtration (DMF) of municipal wastewater for carbon recovery: Application of a simple pretreatment and selection of an appropriate membrane pore size(2022) | |
| 65002
|
Shen, Z; Song, X; Li, Y; Gu, MY; Yu, YB; Miao, J; Zhu, H; Zhou, XF; Zhang, YL Particle size distribution characterization of swine wastewater using membrane treatment process for resource recovery(2021) | |
| 7814
|
Cerrillo, M; Riau, V; Bonmati, A Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes(2023)Membranes, 13, 2 | |
| 21611
|
Lejarazu-Larrañaga, A; Molina, S; Ortiz, JM; Riccardelli, G; García-Calvo, E Influence of acid/base activation treatment in the performance of recycled electromembrane for fresh water production by electrodialysis(2020) | |
| 10894
|
Morón-López, J; Nieto-Reyes, L; Aguado, S; El-Shehawy, R; Molina, S Recycling of end-of-life reverse osmosis membranes for membrane biofilms reactors (MBfRs). Effect of chlorination on the membrane surface and gas permeability(2019) |