| Full text | |
| Author(s): |
Moura, Rafael B.
;
Damasceno, Leonardo H. S.
;
Damianovic, Marcia H. R. Z.
;
Zaiat, Marcelo
;
Foresti, Eugenio
Total Authors: 5
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Chemical Engineering; v. 35, n. 2, p. 8-pg., 2018-04-01. |
| Abstract | |
This work aimed at evaluating the effect of recirculation ratio on the degree of mixing in the flow of a structured bed reactor. Stimulus-response assays were carried out with hydraulic retention times of 6 h and 12 h, subjected to recirculation ratios of 0, 1, 2, 3, and 4. The assays were undertaken with dextran blue as a tracer and without aeration. The results fitted a compartment model, allowing the determination of the mixed-flow and plug-flow volumes inside the reactor. The model application showed that recirculation ratios between 1 and 3 do not increase the mixed-flow volume of the reactor. Higher mixed-flow volumes were obtained at recirculation rates higher than 4 for both 6 h and 12 h of hydraulic retention times. The results obtained in this research are important for future applications of this reactor configuration, promoting a mixed flow in the reactor with a minimum recirculation ratio. (AU) | |
| FAPESP's process: | 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated |
| Grantee: | Marcelo Zaiat |
| Support Opportunities: | Research Projects - Thematic Grants |