Agradecimentos: This work was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo-FAPESP (grant numbers 17/14056-9 and 15/20630-4). Authors are also thankful for the Ministry of Education, Science and Technological Development of the Republic of Serbia (Project III 45001); Prof. Dr....

Agradecimentos: This work was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo-FAPESP (grant numbers 17/14056-9 and 15/20630-4). Authors are also thankful for the Ministry of Education, Science and Technological Development of the Republic of Serbia (Project III 45001); Prof. Dr. Telma Teixeira Franco (LEBBPOR, FEQ, UNICAMP, São Paulo, Brazil), who permitted the use of TOC-VCSN Analyzer (Shimadzu, Kyoto, Japan); Prof. Dr. Ljubica Tasic and Dr. Danijela Stanisic (Institute of Chemistry, UNICAMP, São Paulo, Brazil), who kindly provided rotary shaker. Special acknowledgments belong to the following individuals from LOPCA (FEQ, UNICAMP, São Paulo, Brazil), who provided the technical and logistics support during the research: Luisa Fernanda Rios Pinto, Gabriela Filipini Ferreira, Jean Felipe Leal Silva and Renato Sano Coelho

Abstract: This study describes a new algal biofuel process that integrates sugarcane biorefinery wastewater treatment by nutrient removal with algae into bioethanol. The process is free of common industrial problems, including algal contamination, nutrients and fresh water usage, carbohydrate...

Abstract: This study describes a new algal biofuel process that integrates sugarcane biorefinery wastewater treatment by nutrient removal with algae into bioethanol. The process is free of common industrial problems, including algal contamination, nutrients and fresh water usage, carbohydrate extraction, liquefaction, and saccharification. Cultivation and fermentation were conducted in one step by turning the light-air on and off, respectively. Three series of experiments with Chlamydomonas reinhardtii CC-1093 cultivation and fermentation were performed in anaerobically digested vinasse. Control experiments were a reference to compare the influence of chloride and ammonium-sulfate stress conditions on ethanol yield. Experimental results showed: (1) algal biomass can be successfully cultured within biorefinery wastewater (1129 mg·L-1·day-1); (2) relatively high bioremediation was achieved (26.1%-83.5%); (3) obtained ethanol yield was (maximum 68.3% of the theoretical yield) in one process step; and (4) the chloride stress condition influences on algae to synthesize extracellular polysaccharides as add-in product (120 mg/L)

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP

2015/20630-4; 2017/14056-9

Aberto