| Title |
Methane Production by Co-Digesting Vinasse and Whey in an AnSBBR: Effect of Mixture Ratio and Feed Strategy
|
|---|---|
| Published in |
Applied Biochemistry and Biotechnology, June 2018
|
| DOI | 10.1007/s12010-018-2802-7 |
| Pubmed ID | |
| Authors |
Giovanna Lovato, Roberta Albanez, Marianne Triveloni, Suzana M. Ratusznei, José A. D. Rodrigues |
| 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 °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 molCH4 m-3 day-1) and yield (12.7 to 9.1 molCH4 kgCOD-1), but fed-batch mode operation improved reactor performance (73.0 molCH4 m-3 day-1 and 11.5 molCH4 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 16,950 m3 each was proposed in the scale-up estimation, with an energy recovery estimated in 28,745 MWh per month. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 3 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 3 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 55 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 55 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 13 | 24% |
| Other | 4 | 7% |
| Student > Doctoral Student | 4 | 7% |
| Professor | 4 | 7% |
| Researcher | 4 | 7% |
| Other | 9 | 16% |
| Unknown | 17 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemical Engineering | 11 | 20% |
| Engineering | 7 | 13% |
| Environmental Science | 6 | 11% |
| Agricultural and Biological Sciences | 4 | 7% |
| Medicine and Dentistry | 2 | 4% |
| Other | 3 | 5% |
| Unknown | 22 | 40% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 June 2018.
All research outputs
#15,010,626
of 23,090,520 outputs
Outputs from Applied Biochemistry and Biotechnology
#1,522
of 2,533 outputs
Outputs of similar age
#198,478
of 329,367 outputs
Outputs of similar age from Applied Biochemistry and Biotechnology
#7
of 26 outputs
Altmetric has tracked 23,090,520 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,533 research outputs from this source. They receive a mean Attention Score of 3.2. This one is in the 38th percentile – i.e., 38% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 329,367 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 26 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.