Bioreactor configuration | Membrane information | Fouling control method | Temp. (˚C) | SRT (days) | HRT (h) | Average influent strength | Average effluent (mg/L Total COD/% removal) |
Completely mixed anaerobic reactor (1st pilot-scale) [53] | Polyvinylidene difluoride, hollow-fibre ultrafiltration membrane module with 0.05 μm pore size | Biogas sparging | 33 | 70 | 6 - 21 | 445 mg Actual DWW/Ltr. Total COD | 77/83 |
Completely mixed anaerobic reactor (2nd pilot-scale) [54] | Polyvinylidene difluoride, hollow-fibre ultrafiltration membrane module | Biogas sparging; relaxation; weekly chemical cleaning | 22 | 80 -100 | 8.5 | 224 mg Actual DWW/Ltr. Total COD | 47/79 |
Completely mixed anaerobic reactor (3rd pilot-scale) [55] | flat sheet polyether sulfone ultra-filtration membrane module with a mean pore size of 38 nm | Biogas sparging; relaxation; backflushing | 35 | 680 | 19.2 | 630 Actual DWW supplemented with glucose/Ltr. Total COD | <80/90 |