Comparative study of anaerobic dynamic membrane bioreactor and anaerobic electro-dynamic membrane bioreactor systems for high-strength wastewater treatment

Ghanim M., Soydemir G., YILMAZ F., Dizge N., PERENDECİ N. A., Karagunduz A.

International Journal of Environmental Science and Technology, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s13762-025-06620-0
  • Dergi Adı: International Journal of Environmental Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Compendex, Environment Index, Geobase, INSPEC, Pollution Abstracts, Veterinary Science Database
  • Anahtar Kelimeler: Activated carbon fabric, Anaerobic electro-dynamic membrane bioreactor, Anaerobic treatment, Dynamic membrane, Membrane fouling
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The objective of this study was to conduct a comparative analysis of anaerobic dynamic membrane bioreactor (AnDMBR) and anaerobic electro-dynamic membrane bioreactor (AnEDMBR) systems. The AnEDMBR systems were operated at two distinct electric field strengths, 0.8 V and 1.2 V. A hydraulic retention time of 5 days was maintained in both systems. A bench-scale continuous flow reactor equipped with a submerged membrane module utilizing activated carbon fabric as the dynamic membrane was employed. Synthetic wastewater with a high chemical oxygen demand (COD) concentration of 11.4 ± 1.0 g/L was used as feed. The AnEDMBR system was equipped with an iron anode and the activated carbon fabric serving as a cathode which used as a dynamic membrane. The results showed that both systems achieved high COD removal efficiency exceeding 98%. Membranes exposed to an electric field of 1.2 V in the AnEDMBR system exhibited better resistance to fouling compared to those exposed to 0.8 V. Scanning electron microscopy (SEM) images of membrane surfaces indicated a positive effect between extracellular polymeric substances (EPS) and the cathodic membrane due to electrostatic repulsion for the applied voltages. This study provides a significant information for the application of AnEDMBR technology in treating of high-COD content wastewater.