Consulta: creatorFacets:"Maroneze,Mariana Manzoni"
Registros recuperados: 4
Data/hora: 10/06/2024 09:58:10

Treatment of cattle-slaughterhouse wastewater and the reuse of sludge for biodiesel production by microalgal heterotrophic bioreactors
Provedor de dados: Scientia Agricola
Autores: 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

Cassava processing wastewater as a platform for third generation biodiesel production
Provedor de dados: Scientia Agricola
Autores: Neves,Cristina; Maroneze,Mariana Manzoni; Santos,Aline Meireles dos; Francisco,Erika Cristina; Wagner,Roger; Zepka,Leila Queiroz; Jacob-Lopes,Eduardo.
ABSTRACT This study aimed to evaluate third generation biodiesel production by microalgae Phormidium autumnale using cassava processing wastewater as a platform. Experiments were performed in a heterotrophic bubble column bioreactor. The study focused on the evaluation of the bioreactor (batch and fed-batch) of different operational modes and the analysis of biofuel quality. Results indicate that fed-batch cultivations improved system performance, elevating biomass and oil productions to 12.0 g L−1 and 1.19 g L−1, respectively. The composition of this oil is predominantly saturated (60 %) and monounsaturated (39 %), resulting in a biodiesel that complys with U.S., European and Brazilian standards. The technological route developed indicates potential for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microalgae; Cyanobacteria; Agroindustrial wastewater; Biofuel.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000500412

Enhanced single-cell oil production by cold shock in cyanobacterial cultures
Provedor de dados: Ciência Rural
Autores: Queiroz,Maria Isabel; Maroneze,Mariana Manzoni; Manetti,Adriana Gonçalves da Silva; Vieira,Juliana Guerra; Zepka,Leila Queiroz; Jacob-Lopes,Eduardo.
ABSTRACT:  The aim of this research was to evaluate the enhanced single-cell oil production by cold shock in Aphanothece microscopica Nägeli using dairy processing wastewater as culture medium. The study focused on (i) temperature optimization for biomass production, (ii) cold shock application to induce lipids biosynthesis and (iii) determination of fatty acids profile under different conditions. Results indicated that temperature of 20°C was the best condition in terms of kinetics parameter, reaching biomass productivities of 160.25mg/L.h. Under these conditions, a lipid content of 12.65% was also observed, resulting in a lipid productivity of 20.27mg/L.h. Additionally, the 0°C cold shock was the most efficient in increasing intracellular lipid content,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphanothece microscopica Nägeli; Dairy wastewater; Lipid; Microalgae; Temperature stress.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100750

Produção de biodiesel de terceira geração a partir de microalgas
Provedor de dados: Ciência Rural
Autores: Francisco,Érika Cristina; Franco,Telma Teixeira; Maroneze,Mariana Manzoni; Zepka,Leila Queiroz; Jacob-Lopes,Eduardo.
O objetivo do estudo foi avaliar o biodiesel de 3 a geração produzido a partir do cultivo heterotrófico da microalga Phormidium sp., empregando amido de mandioca como fonte de carbono orgânico. Um planejamento experimental foi realizado para determinar as condições ótimas de temperatura e razão C/N. A partir da obtenção das melhores condições de cultivo desenvolveram-se cultivos em batelada e batelada alimentada em biorreator e avaliaram-se as características do biodiesel produzido. Os resultados indicaram que a temperatura de 30ºC e a razão C/N de 68 são as condições ideais do processo. As maiores produtividades em biomassa (50,41mgL-1h-1) e lipídica (7,49mgL-1h-1) foram obtidas no cultivo em batelada. Os ácidos graxos com maior representatividade foram...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiesel; Microalgas; Cultivo heterotrófico; Amido de mandioca.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200349