Análise do potencial biodegradativo da levedura Saccharomyces cerevisiae na remoção de corantes têxteis e efluente coletado de uma lavanderia industrial têxtil: um estudo da biorremediação

• Autor(a) principal: Ercolini, Sofia Tafuri [UNESP]
• Data de Publicação: 2018
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/203721; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2020-01-20/000924377.pdf
• topic: Resíduos industriais; Biorremediação; Leveduras; Saccharomyces cerevisiae; Corantes; Indústria têxtil; Águas residuais - Purificação; Factory and trade waste

Technological innovation in the textile industrial area has contributed positively to the world economy, however, this innovation generates impacts to the environment due to the large production of industrial waste that is often discarded in the water bodies without adequate treatment. These pollutants from the textile industry are characterized by high coloration and difficult degradation, thus, the waste generated by the textile industry has become a major concern in terms of pollution of water resources and the alteration of their ecosystem. Among the existing treatments, bioremediation is emerging as an object of research in several areas. It is a methodology that fits the principles of Green Chemistry, since it aims at the design of microorganisms that degrade toxic substances in innocuous forms. Saccharomyces cerevisiae yeast is an optional aerobic microorganism that has the ability to adapt metabolically under aerobic or anaerobic conditions while maintaining its high growth rate. The objective of this study was to analyze the biodegradable potential of yeast Saccharomyces cerevisiae in the removal of textile dyes by the spectrophotometric analysis of molecular absorption in the visible ultraviolet region. For the best evaluation of the biodegradable potential of the yeast Saccharomyces cerevisiae, the orange and methyl indigo carmine dyes were used in this work and then applied in industrial laundry effluent. The results indicate that the yeast is capable of biodegrading both dyes. However, it showed a higher biodegradability when exposed to the indigo dye solution, reducing its coloration by 53%. In addition, the suspension was able to biodegrade the textile effluent throughout the reaction period. The yeast was able to reduce the initial effluent concentration by up to 87%, thus, bioremediation through the use of yeast Saccharomyces cerevisiae proved to be effective for the treatment of wastewater from textile laundries