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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

AnSBBR APPLIED TO BIOMETHANE PRODUCTION FOR VINASSE TREATMENT: EFFECTS OF ORGANIC LOADING, FEED STRATEGY AND TEMPERATURE

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Author(s):
Almeida, W. A. [1] ; Ratusznei, S. M. [2] ; Zaiat, M. [1] ; Rodrigues, J. A. D. [2]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Escola Engn Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Inst Maua Tecnol, Escola Engn Maua, Praca Maua 1, BR-09580900 Sao Caetano do Sul, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Brazilian Journal of Chemical Engineering; v. 34, n. 3, p. 759-773, JUL-SEP 2017.
Web of Science Citations: 4
Abstract

This study assessed the feasibility of an anaerobic sequencing batch and fed-batch biofilm reactor (AnSBBR) with mechanical stirring for vinasse treatment and biomethane production. The amount of liquid medium used was 3 L, and the treated volume was 1 L per cycle. The cycle time was 8 h, with feeding times of 10 min (batch mode) and 240 min (fed-batch mode). Methane productivity increased with the increase in organic load from 1.0 to 10.0 gCOD. L-1.d(-1). The maximum molar productivity and yield of methane were 123.4 molCH(4). m(-3).d(-1) and 13.8 mmolCH(4). gCOD(-1) (88% of the theoretical), respectively. These parameters were lower in fed-batch mode than in batch mode and were lower at 45 degrees C than at 30 degrees C due to biomass adaptation. In general, the values of the kinetic parameters increased with organic load and were similar for the batch and fed-batch modes. Therefore, the increase in organic load positively influenced the process by increased COD removal and lower volatile acids accumulation as the load increased. The batch mode performed better than did the fed-batch mode and 30 degrees C was more suitable than 45 degrees C to produce methane under the studied conditions. (AU)

FAPESP's process: 13/23366-0 - Effect of feeding strategy and temperature on methane production in a stirred AnSBBR reactor treating vinasse
Grantee:Weriskiney Araújo Almeida
Support type: Scholarships in Brazil - Master