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PubMed Publications| Keyword search (4,163 papers available) |  |
"fouling" Keyword-tagged Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Integration of Membrane-Based Pretreatment Methods with Pressure-Retarded Osmosis for Performance Enhancement: A Review | Pakdaman S; Nouri G; Mulligan CN; Nasiri F; | 40077246 ENCS |
| 2 | A Comparative Study of the Self-Cleaning and Filtration Performance of Suspension Plasma-Sprayed TiO2 Ultrafiltration and Microfiltration Membranes | Alebrahim E; Moreau C; | 37755172 ENCS |
| 3 | Integrating of electrocoagulation process with submerged membrane bioreactor for wastewater treatment under low voltage gradients | Bani-Melhem K; Elektorowicz M; Tawalbeh M; Al Bsoul A; El Gendy A; Kamyab H; Yusuf M; | 37536541 ENCS |
| 4 | Hydrophilic and underwater superoleophobic porous graphitic carbon nitride (g-C3N4) membranes with photo-Fenton self-cleaning ability for efficient oil/water separation | Yue R; Saifur Rahaman M; | 34749146 ENCS |
| Title: | Integrating of electrocoagulation process with submerged membrane bioreactor for wastewater treatment under low voltage gradients | ||||
| Authors: | Bani-Melhem K, Elektorowicz M, Tawalbeh M, Al Bsoul A, El Gendy A, Kamyab H, Yusuf M | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/37536541/ | ||||
| DOI: | 10.1016/j.chemosphere.2023.139693 | ||||
| Publication: | Chemosphere | ||||
| Keywords: | Electrocoagulation; Grey water; Membrane fouling; PAHs; Submerged membrane bioreactor; | ||||
| PMID: | 37536541 | Category: | Date Added: | 2023-08-04 | |
| Dept Affiliation: | ENCS | ||||
Description: |
Polycyclic aromatic hydrocarbons (PAHs) are present in wastewater from various sources like industry, roads, and household waste. They are difficult to remove due to their low concentration, stability, and ability to combine with other organic substances. The study aimed to address membrane fouling in the submerged membrane bioreactor (SMBR) used for wastewater treatment. An aluminum electrocoagulation (EC) device was combined with SMBR as a pre-treatment to reduce fouling. The EC-SMBR process was compared with a conventional SMBR without EC, both fed with real grey water. Lower voltage gradients were used to prevent biological growth. The comparison was conducted over 60 days with constant transmembrane pressure and infinite solid retention time (SRT). In phase I, when the EC device was operated at a low level of voltage gradient (0.64 V/cm), no significant improvement in the pollutants removal was observed in terms of color, turbidity, and chemical oxygen demand (COD). Nevertheless, during phase II, a voltage gradient of 1.26 V/cm achieved up to 100%, 99.7%, 92%, 94.1%, and 96.5% removals in the EC-SMBR process in comparison with 95.1%, 95.4%, 85%, 91.7% and 74.2% removals in the SMBR process for turbidity, color, COD, ammonia nitrogen (NH3-N), total phosphorus (TP), respectively. SMBR showed better anionic surfactant (AS) removal than EC-SMBR. A voltage gradient of 0.64 V/cm in the EC unit significantly reduced fouling by 23.7%, while 1.26 V/cm showed inconsistent results. Accumulation of Al ions negatively affected membrane performance. Low voltage gradients in EC can control SMBR fouling if Al concentration is controlled. Future research should investigate EC-SMBR with constant membrane flux for large-scale applications, considering energy consumption and operating costs. |
