Together with Syed S., Helen J., and team, Sri H. Suhardi examined an HF-sAnMBR-DHS system for enhanced RB5 diazo dye synthetic textile wastewater treatment. Phase-1 (51 days) operated with natural aeration, while Phase-2 (66 days) applied intermittent forced aeration (2 L/min, 5 min ON/OFF cycle) into the DHS. Results showed that mean tCOD and sCOD removal improved from 88.43% & 90.82% in P-1 to 94.30% & 95.79% in P-2. Spectrophotometric analysis revealed 81.41% color reduction in P-1 and 83.40% decolorization in P-2, with Pt-Co levels decreasing from 366.33 to 222.13. Notably, no significant membrane fouling occurred at the median initial flux (14.79 LMH). Microbial analysis identified Clostridium as the dominant genus in both the HF-AnMBR and DHS, attributed to azo dye-degrading bacteria. The abundance of aerobic microbes in DHS might further aid in degrading intermediate aminated compounds. This study highlights the potential of an HF-sAnMBR-DHS system with intermittent aeration to improve synthetic textile wastewater treatment efficiency.

Article Citation:
Saquib, S., Julian, H., Suhardi, S. H., Watari, T., Yamaguchi, T., & Setiadi, T. (2024). Effect of intermittent aeration on textile dyeing wastewater treatment in downflow hanging sponge column integrated with hollow fiber submerged anaerobic membrane bioreactor. Bioresource Technology Reports, 26, 101869, https://doi.org/10.1016/j.biteb.2024.101869