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Treatment of cattle-slaughterhouse wastewater and the reuse of sludge for biodiesel production by microalgal heterotrophic bioreactors Scientia Agricola
Maroneze,Mariana Manzoni; Barin,Juliano Smanioto; Menezes,Cristiano Ragagnin de; Queiroz,Maria Isabel; Zepka,Leila Queiroz; Jacob-Lopes,Eduardo.
Microalgal heterotrophic bioreactors are a potential technological development that can convert organic matter, nitrogen and phosphorus of wastewaters into a biomass suitable for energy production. The aim of this work was to evaluate the performance of microalgal heterotrophic bioreactors in the secondary treatment of cattle-slaughterhouse wastewater and the reuse of microalgal sludge for biodiesel production. The experiments were performed in a bubble column bioreactor using the microalgae Phormidium sp. Heterotrophic microalgal bioreactors removed 90 % of the chemical oxygen demand, 57 % of total nitrogen and 52 % of total phosphorus. Substantial microalgal sludge is produced in the process (substrate yield coefficient of 0.43 mg sludge mg chemical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioreactor; Agro-industrial wastewater; Microalgae/cyanobacteria.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600011
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