Abstract
Two distinct full-scale upflow anaerobic sludge blanket (UASB) reactors, namely IUASB (143 m3) and TUASB (476 m3), treating alcohol (raki) distillery wastewaters were investigated in terms of performance, acetoclastic methanogenic activity and archaeal composition. The TUASB reactor was inoculated with the seed sludge taken from the IUASB reactor. An average of 90% COD removal efficiency at organic loading rates (OLRs) in a range of 6-11 kg COD/m3 day was achieved in the IUASB reactor. However, 60-80% COD removal efficiency of the TUASB reactor was achieved at OLRs ranging 2.5-8.5 kg COD/m3 day. Both UASB reactors showed almost the same acetoclastic methanogenic activity (350 and 376 ml CH4/g VSS day). Distribution of archaeal populations within the two UASB reactors was investigated by denaturing gradient gel electrophoresis analysis of PCR amplified ribosomal RNA gene fragments. Both UASB reactors have shown quite similar archaeal composition (weighted similarity of 83.1%). Predominant archaeal sequences in both reactors belonged to Methanobacterium formicicum and Methanosaeta soehngenii.
| Original language | English |
|---|---|
| Pages (from-to) | 28-35 |
| Number of pages | 8 |
| Journal | Process Biochemistry |
| Volume | 41 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2006 |
Funding
Author Alper T. Akarsubasi would like to acknowledge TUBITAK NATO-A2 fund and also Dr. Fahir Ilter Scholarship of Bogazici University Foundation for support to complete this study. Authors would also like to acknowledge the project coded 844, Research Fund of Istanbul Technical University, the project coded 01M102, Research Fund of Bogazici University and the project coded TBAG-1935 (100T054) of TUBITAK. Authors wish to thank particularly Dr. Tom Curtis, Dr. Ian Head and the Staff of University of Newcastle Upon Tyne, Department of Civil Engineering, UK and also Tekel Co. (Turkey) for their cooperation and supplying samples and some performance data of their treatment plants.
| Funders | Funder number |
|---|---|
| Bogazici University | TBAG-1935, 100T054 |
| Bogazici University Foundation | 844 |
| TUBITAK | |
| TUBITAK NATO-A2 fund | |
| Istanbul Teknik Üniversitesi | 01M102 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Keywords
- 16S rDNA analysis
- Acetoclastic methanogenic activity
- Alcohol distillery wastewater
- Archaea
- DGGE
- UASB reactors
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