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| Content Provider | Springer Nature Link |
|---|---|
| Author | Mansouri, Yadollah Zinatizadeh, Ali Akbar Mohammadi, Parviz Irandoust, Mohsen Akhbari, Aazam Davoodi, Reza |
| Copyright Year | 2012 |
| Abstract | The hydraulic characteristic of an anaerobic rotating biological contactor (AnRBC) were studied by changing two important hydraulic factors effective in the treatment performance: the hydraulic retention time (τ) and rotational disk velocity (ω). The reactor hydraulic performance was analyzed by studying hydraulic residence time distributions (RTD) obtained from tracer (Rhodamine B) experiments. The experiments were conducted based on a central composite face-centered design (CCFD) and analyzed using response surface methodology (RSM). The region of exploration for the process was taken as the area enclosed by τ (60, 90 and 120 min) and ω (0.8 and 16 rpm) boundaries. Four dependent parameters, deviation from ideal retention time (Δτ), dead volume percentage and dispersion indexes (Morrill dispersion index (MDI) and dispersion number (d)), were computed as response. The maximum modeled Δτ and dead volume percentage was 43.03 min and 37.51% at τ and ω 120 min and 0 rpm, respectively. While, the minimum predicted responses (2.57 min and 8.08%) were obtained at τ and ω 60min and 16 rpm, respectively. The interaction showed that disk rotational velocity and hydraulic retention time played an important role in MDI in the reactor. The AnRBC hydraulic regime was classified as moderate and high dispersion (d=0.09 to 0.253). As a result, in addition to the factors studied, the reactor geometry showed significant effect on the hydraulic regime. |
| Starting Page | 891 |
| Ending Page | 902 |
| Page Count | 12 |
| File Format | |
| ISSN | 02561115 |
| Journal | Korean Journal of Chemical Engineering |
| Volume Number | 29 |
| Issue Number | 7 |
| e-ISSN | 19757220 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2012-02-07 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Anaerobic Rotatory Biological Contactor Hydraulic Characteristics Tracer Experiment Response Surface Methodology Industrial Chemistry/Chemical Engineering Catalysis Biotechnology Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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