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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.)

Anaerobic digestion of aqueous phase from hydrothermal liquefaction of Spirulina using biostimulated sludge

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Author(s):
Bueno, Beatriz Egerland [1] ; Soares, Lais Americo [2] ; Quispe-Arpasi, Diana [1] ; Sakamoto, Isabel Kimiko [2] ; Zhang, Yuanhui [3] ; Amancio Varesche, Maria Bernadete [2] ; Ribeiro, Rogers [1] ; Tommaso, Giovana [1]
Total Authors: 8
Affiliation:
[1] Univ Sao Paulo, Dept Food Engn, Lab Environm Biotechnol, 225 Duque Caxias Norte, BR-13635900 Sao Paulo - Brazil
[2] Univ Sao Paulo, Sch Engn Sao Carlos, Dept Hydraul & Sanitat, Lab Biol Proc, 1100 Joao Dagnone Ave, BR-13563120 Sao Carlos - Brazil
[3] Univ Illinois, Dept Agr & Biol Engn, 1304 W Penns Ave, Urbana, IL 61801 - USA
Total Affiliations: 3
Document type: Journal article
Source: Bioresource Technology; v. 312, SEP 2020.
Web of Science Citations: 0
Abstract

Hydrothermal liquefaction is a process that converts wet biomass into biofuels, more speci fically bio-crude oil. During the process, post hydrothermal liquefaction waste water (PHWW) is generated, rich in nutrient and organic matter, however potentially toxic. Anaerobic digestion of PHWW from Spirulina , was evaluated using biostimulated sludge as a strategy to optimize the process. The biostimulation was conducted in a sequential batch reactor fed with organic acids and methanol aiming at development of acetogenic and methanogenic microorganism. Anaerobic biodegradability batch assays were performed, with biostimulated sludge and with non-biostimulated sludge, using increasing PHWW concentrations. Biostimulated sludge were more favourable for reaching higher methane yields at higher organic matter concentrations in comparison to non-biostimulated sludge, presenting less inhibition at conditions tested. Biostimulation was a key process to select and favour potential microorganisms involved in specialized uptake of recalcitrant compounds, such as Mesotoga and Methanomethylovorans . (AU)

FAPESP's process: 17/12486-6 - Anaerobic digestion of oil production via hydrothermal liquefaction of cyanobacterias
Grantee:Giovana Tommaso
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants