Algas serão o biocombustível do futuro?
Autor: Cursos de Biologia e Gestão Ambiental - Ulbra São Jerônimo | Publicado: 2010-11-03T09:59:00-02:00

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 <![endif]-->  No ano passado li duas matérias [sciencedaily] sobre a produção de biocombustíveis a partir de fontes alternativas à cana de açúcar e à sementes oleaginosas, e a que mais me chamou a atenção foi a produção de óleo orgânico com base na produção biológica de microalgas marinhas, na época uma empresa de geração de energia elétrica com uso de carvão mineral drenava calor e CO2 para bolsas de plástico com cultura de algas para incrementar a sua produção. Na semana passada recebi uma sugestão de um aluno da Gestão Ambiental, para que publicasse uma matéria no blog com este tema, pois bem, resolvi dar uma renovada nas informações e relacionei, além da matéria de sugestão proposta pelo aluno, outros sites com mais informações sobre a produção de biomassa para a geração de biocombustível. Mesmo tendo várias técnicas, metodologias e espécies de algas envolvidas a forma de obtenção é sempre a mesma [How Stuff Works], o material biológico deve ser desidratado e o óleo extraído, a diferença entre as metodologias gera avanços distintos nas técnicas, mas o resultado final é sempre muito similar. Muitas universidades (1, 2, 3) têm direcionado suas pesquisas com biomassa de algas para a produção de biocombustíveis, o que acertadamente levará a um conhecimento mais aprofundado e à geração de tecnologias inovadoras, e quem sabe até mesmo poderemos ter uma alternativa mais viável economicamente e também mais ecologicamente correta, uma vez que a produção deste tipo de biomassa não torna necessário o desmatamento, o uso de defensivos agrícolas, não é necessária a adição de quantidades gigantescas de fertilizantes e não leva à degradação e assoreamento dos recursos hídricos, como ocorre com a cultura da cana de açúcar, do milho, etc.&nbsp;

Processo de produção de biomassa em escala industrial. [Fonte: http://static.howstuffworks.com/gif/algae-biodiesel-5.jpg]

Agradeço ao Andrio Souza, pela proposição do tema.