Hydrothermal, solar and laser pretreatments techniques and high pressure digestion to enhance sugarcane bagasse bioconversion and high-value chemicals recovery

• Grant number: 18/25748-1
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: April 01, 2019
• End date: March 21, 2020
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Maria Bernadete Amâncio Varesche
• Grantee: Laís Américo Soares
• Supervisor: Julius Bernardus Van Lier
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: Delft University of Technology (TU Delft), Netherlands
• Associated to the scholarship: 17/07194-6 - INTEGRATED ANALYSIS FOR DEGRADATION OF SUGARCANE BAGASSE AND PENTOSE LIQUOR IN A COMPARTMENTALIZED THERMOPHILIC ANAEROBIC FIXED-BED REACTOR, BP.PD

Abstract

The pretreatment of lignocellulosic feedstocks is an essential step and is required to alter the structure of biomass residues and expose the lignocellulosic fractions for easy access of polysaccharides during enzymatic hydrolysis and enhance the rate and yield of reducing sugars. In this study, new methods, not yet employed in our research group, are proposed such as concentrated solar power (CSP), and pulsed laser ablation (PLA) which will be analyzed and, then, compared to the conventional hydrothermal Pretreatment (HT) in terms of lignin degradation, and polysaccharides solubilisation. To do that, independent variables will be evaluated in order to optimize the HT, CSP and PLA pretreatments of sugarcane bagasse. Biomethane potential (BMP) tests will be performed under both atmospheric and elevated pCO2 conditions using the optimal pretreatments conditions to determine the anaerobic biodegradability, potential efficiency, concentration of methane and organic acids.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOARES, LAIS A.; SOLANO, MAGNOLIA G.; LINDEBOOM, RALPH E. F.; LIER, JULES B. VAN; SILVA, EDSON L.; VARESCHE, MARIA B. A.. Valorization of sugarcane bagasse through biofuel and value-added soluble metabolites production: Optimization of alkaline hydrothermal pretreatment. BIOMASS & BIOENERGY, v. 165, p. 7-pg., 2022-08-26. (18/25748-1, 17/07194-6, 15/06246-7)