Abstract
This study investigated the effect of upflow velocity (Vup) 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 1.2m/h were applied in three successive stages over a total operation period of 116days. Filterability tests were carried out during each stage in order to assess the effect of Vup on subsequent membrane performance. Results indicated a significant impact of Vup 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 Vup is a critical parameter for effluent filterability in membrane coupled UASB reactors. Results showed that filterability of the effluent during the operation at 0.6m/h was better than that during the operation at 1.2m/h.
| Original language | English |
|---|---|
| Pages (from-to) | 285-292 |
| Number of pages | 8 |
| Journal | Bioresource Technology |
| Volume | 147 |
| DOIs | |
| Publication status | Published - Nov 2013 |
Funding
The authors would like to express their gratitude for the PhD Fellowship awards provided by the Turkish Academy of Sciences (TUBA) to Hale Ozgun, by HUYGENS Scholarship Programme to M. Evren Ersahin and by the China Scholarship Council to Yu Tao. This publication is produced as part of the A-Racer project , with Pentair, Saxion, TU Delft, Water Board Regge & Dinkel as partners. The project ( IWA10007 ) is partly funded by the Dutch Government via AgentschapNL under the InnoWator program. Authors would like to thank Marisa Buyers-Basso for critically editing the manuscript on style and grammar.
| Funders | Funder number |
|---|---|
| AgentschapNL | |
| Dutch Government | |
| TUBA | |
| Türkiye Bilimler Akademisi | |
| China Scholarship Council | IWA10007 |
Keywords
- Anaerobic membrane bioreactor
- Filterability
- Municipal wastewater
- Upflow anaerobic sludge blanket reactor
- Upflow velocity