Desodorização de água residuária a partir do cultivo heterotrófico microalgal

Detalhes bibliográficos
Ano de defesa: 2016
Autor(a) principal: Vieira, Karem Rodrigues
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Santa Maria
Brasil
Ciência e Tecnologia dos Alimentos
UFSM
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos
Centro de Ciências Rurais
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://repositorio.ufsm.br/handle/1/17687
Resumo: Microalgae are prokaryote structure of beings who gather interesting features for the biotechnological use in wastewater treatment systems. The use of such microorganisms based on bioconversion of organic matter and nutrients into compounds of industrial interest has been widely explored. However, among the variety of biotechnological applications of these micro-organisms, there is an issue little explored consisting in the microalgae employment in deodorizing compounds in the wastewater treatment plants. Given this, the study aimed to evaluate the deodorization of wastewaters the from heterotrophic microalgae bioreactors of Phormidium autumnale. The strategy is based on three stages, (i) discuss the bio-generation of volatile organic compounds in microalgae, (ii) evaluate the ability of microalgae to deodorize the wastewater, (iii) identify and quantify the volatile organic compounds present in the agro-industrial effluent. The volatiles were isolated by headspace solid-phase micro-extraction in different residence times (0, 24, 48, 72, 96, 120 e 144 hours), the compounds were separated on a column DB-Wax in the gas chromatograph and identified by mass spectrometry (SPME-GC/MS). The quantification of the volatiles was performed from the peak area, using one standard inside. Quantitation was performed from the peak area using the internal standard. A total of 64 compounds was detected in the culture. Being that 43 compounds disappeared after 48 hours of the process. Concomitantly, after 24 hours of cultivation 21 new volatile organic compounds were formed. Additionally, in parallel experimental information obtained, it was published a book chapter entitled Biogeneration of Volatile Organic Compounds by Microalgae: Occurrence, Behavior, Ecological Implications and Applications Industrial composing the book Volatile Organic Compounds: Occurrence, Behavior and Ecological Implications, published by publisher New Science Publishers.