| Full text | |
| Author(s): |
Lovato, Giovanna
[1]
;
Albanez, Roberta
[1]
;
Triveloni, Marianne
[1]
;
Ratusznei, Suzana M.
[1]
;
Rodrigues, Jose A. D.
[1]
Total Authors: 5
|
| Affiliation: | [1] Maua Inst Technol EEM IMT, Maua Sch Engn, Praca Maua 1, BR-09580900 Sao Caetano do Sul, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Applied Biochemistry and Biotechnology; v. 187, n. 1, p. 28-46, JAN 2019. |
| Web of Science Citations: | 3 |
| Abstract | |
The most common approach to deal with vinasse (sugarcane stillage) is fertigation, but this technique compromises soil structure and surrounding water bodies. A possible solution is to transport vinasse to local cheese whey producers and perform the co-digestion of these wastewaters together, reducing their organic load and generating bioenergy. Therefore, this study investigated the application of an AnSBBR (anaerobic sequencing batch biofilm reactor) operated in batch and fed-batch mode, co-digesting vinasse and whey at 30 degrees C. The effect of influent composition and feeding strategy was assessed. In all conditions, the system achieved high organic matter removal (approximately 83%). Increasing the percentage of vinasse from 0 to 100% in the influent resulted in a decrease in methane productivity (76.3 to 51.1 molCH(4) m(-3) day(-1)) and yield (12.7 to 9.1 molCH(4) kgCOD(-1)), but fed-batch mode operation improved reactor performance (73.0 molCH(4) m(-3) day(-1) and 11.5 molCH(4) kgCOD(-1)). From the kinetic metabolic model, it was possible to infer that, at the best condition, methane is produced in a similar way from the acetoclastic and hydrogenotrophic routes. A scheme of four parallel reactors with a volume of 16,950m(3) each was proposed in the scale-up estimation, with an energy recovery estimated in 28,745MWh per month. (AU) | |
| FAPESP's process: | 15/08403-2 - Biomethane production in AnSBBR from the co-digestion of vinasse and whey |
| Grantee: | Marianne Triveloni |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery |
| Grantee: | Marcelo Zaiat |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/07692-8 - Co-digestion of glycerin and whey in AnSBBR for biohydrogen and biomethane production |
| Grantee: | Giovanna Lovato |
| Support Opportunities: | Scholarships in Brazil - Doctorate |