Lactic acid production from puba production wastewater in fixed bed reactors

• Grant number: 16/03470-6
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: June 01, 2016
• End date: June 08, 2018
• Field of knowledge: Engineering - Sanitary Engineering - Environmental Sanitation
• Principal Investigator: Marcelo Zaiat
• Grantee: Jéssica Soares Cavalcante
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Lactic acid is a versatile compound widely used in several industries worldwide. Also, it has a great potential to be feedstock for the production of biodegradable plastic. The carbon source in lactic acid production is responsible for the major part of the cost and, thus, the researchers are focussing on finding a cost effective substrate, which is suitable for lactic acid production. Cassava wastewater has a high potential of pollution due to its high organic matter concentration; nevertheless, this characteristic combined with the dominance of lactic acid bacteria in the fermentation of cassava roots, may favour the production of lactic acid. High cell density fermentation has been shown to give better results when compared to free cells fermentation, due to the increased cell concentration in the reactor. In this context, the aim of this research is to study the production of lactic acid using puba production wastewater as substrate in anaerobic fixed bed reactors. It is expected to find the kinetics of the production of lactic acid using puba production wastewater and to assess the performance of fixed bed reactors. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

CAVALCANTE, Jéssica Soares. Assessment of lactic acid production using cassava wastewater and autochthonous microrganisms in anaerobic systems. 2021. Doctoral Thesis - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.