Table 2.
Effect of Pseudomonas sp. 1A1-mediated Quorum Quenching on membrane biofouling mitigation in MBRs inoculated with AS, under continuous mode and using submerged polyvinylidene fluoride (PVDF) hollow fibers as the filtration module.
| MBR Design | MBR Operation | Resulting QQ Effect Expressed in% of the Control MBR | Ref. | N° | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reactor | Membrane | Pseudomonas sp. 1A1 | |||||||||||||||||||||||||
| Geometry | Working Volume (L) | Configuration | Area (cm2) | Pore Size (µm) | Entrapping Method | Inserted Quantity of 1A1 Cells in the Reactor (mg/L) | F/M Ratio | MLSS (mg/L) | HRT (h) | SRT (d) | Permeate Flux (L/m2 h) | Run Time (days) | Number of Cycles | TMP | Time for TMP to Reach | TAB in Biofilm | SMP in Mixed Liquor | EPS in Biofilm | |||||||||
| For Control MBR | For QQ MBR | After 1 Day of Operation | At the End of the 1st Cycle | At the End of Operation | The Breaking Point | 25 kPa | 40 kPa | Proteins | Polysaccharides | Proteins | Polysaccharides | ||||||||||||||||
| ○ | 2.5 | Submerged | 155.2 | 0.04 | PE vessels (4/reactor) | 192 | 0.20–0.22 | 7600–8000 | 8 | 30 | 25 | 7.8 | 2 | 2 | −15% | −71% | −79% | +180% | +134% (+2.6 day) | +150% (+3.1 day) | - | - | - | - | - | [38] | 1 |
| ○ | 3.0 | Submerged | 210 | 0.04 | CMV under inner flow feeding mode (1/reactor) | 706.8 | 0.12–0.21 | 11,000–13,000 | 6 | 60 | 30 | 2.1 | 1 | 1 | −15% | −77% | −77% | - | - | - | −63 w% | - | - | - | - | [52] | 2 |
| ○ | 3.0 | Submerged | 210 | 0.04 | CMV under inner flow feeding mode (1/reactor) | 706.8 | 0.12–0.21 | 11,000–13,000 | 6 | 60 | 25 | 9.4 | 1 | 1 | −22% | −76% | −76% | - | - | - | - | - | - | - | - | [52] | 3 |
| ○ | 3.0 | Submerged | 210 | 0.04 | CMV under inner flow feeding mode (1/reactor) | 266.4 | 0.12–0.21 | 11,000–13,000 | 6 | 60 | 35 | 6 | 2 | 2 | −25% | −60% | −56% | - | - | - | - | −6% | −62% | −77% | −37% | [52] | 4 |
| ○ | 3.0 | Submerged | 210 | 0.04 | CMV under normal feeding mode (1/reactor) | 266.4 | 0.12–0.21 | 11,000–13,000 | 6 | 60 | 35 | 6 | 2 | 2 | −5% | −44% | −25% | - | −3% | - | - | −2% | −51% | −31% | −36% | [52] | 5 |
○: Cylindrical; Numbers: Taken from the literature; Numbers: Calculated with the data provided in the literature; n.a./-: Not available data; n.c.: Not calculable value with the data provided.