Effect of upflow velocity on the effluent membrane fouling potential in membrane coupled upflow anaerobic sludge blanket reactors

Ozgun H., Ersahin M. E., TAO Y., SPANJERS H., VAN LIER J. B.

BIORESOURCE TECHNOLOGY, cilt.147, ss.285-292, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 147
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.biortech.2013.08.039
  • Dergi Adı: BIORESOURCE TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.285-292
  • Anahtar Kelimeler: Anaerobic membrane bioreactor, Municipal wastewater, Filterability, Upflow anaerobic sludge blanket reactor, Upflow velocity, WASTE-WATER TREATMENT, ACTIVATED CARBON ADDITION, DYNAMIC MEMBRANE, BIOREACTOR, UASB, SEWAGE, PERFORMANCE, FLUX, SMP
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

This study investigated the effect of upflow velocity (V-up) on biological removal efficiency and effluent filterability in a laboratory scale upflow anaerobic sludge blanket (UASB) reactor. Upflow velocities of 1.2, 0.6 and 1.2 m/h were applied in three successive stages over a total operation period of 116 days. Filterability tests were carried out during each stage in order to assess the effect of V-up on subsequent membrane performance. Results indicated a significant impact of V-up on both biological performance and physicochemical effluent characteristics. The observed differences in protein/carbohydrate ratio and particle size distribution (PSD), which play important roles in membrane fouling, lead to the hypothesis that V-up is a critical parameter for effluent filterability in membrane coupled UASB reactors. Results showed that filterability of the effluent during the operation at 0.6 m/h was better than that during the operation at 1.2 m/h. (C) 2013 Elsevier Ltd. All rights reserved.