| Autor: |
Ayse Ekin Uzunhasanoglu, Bulent Mertoglu, Cigdem Kalkan Aktan, Kozet Yapsakli |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Proceedings, Vol 2, Iss 11, p 657 (2018) |
| DOI: |
10.3390/proceedings2110657 |
| Popis: |
The main goal of this study is to evaluate the short-term and long-term inhibitory effects of Cu (II) on Anammox process. To investigate the short-term inhibition level, four different concentrations (1, 2.5, 5 and 10 mg L−1 as Cu2+) were tested in batch reactors. IC50 levels for short-term exposure deduced as 4.57mg L−1 (R2: 0.97) from the modified non-competitive inhibition model. Lab-scale continuous flow up-flow fixed bed reactor with Kaldness biofilm carriers was operated 240 days with gradually increased Cu concentrations (from 0.2 to 8 mg L−1). To identify the IC50 levels in case of prolonged exposure of Cu(II), experimental data were fitted with a modified non-competitive inhibition model, and calculated as 6.77 mg L−1 (R2: 0.95). The results show that the IC50 level for copper in long-term exposure was higher than in short-term exposure and the possible reason for that is the self-adaptation of Anammox bacteria. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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