10 results on '"Tango, Mariana Daniel"'
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2. Influence of solar radiation on nitrogen recovery by the biomass grown in high rate ponds
- Author
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de Aguiar do Couto, Eduardo, Calijuri, Maria Lúcia, Assemany, Paula Peixoto, Tango, Mariana Daniel, and da Fonseca Santiago, Aníbal
- Published
- 2015
- Full Text
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3. Effects of Bicarbonate Addition and N:P Ratio on Microalgae Growth and Resource Recovery from Domestic Wastewater.
- Author
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Tango, Mariana Daniel, Zanetoni Filho, José Antônio, Daniel, Luiz Antonio, Leite, Luan de Souza, Hoffmann, Maria Teresa, and Moutinho, Fellipe Henrique Martins
- Subjects
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SEWAGE , *WASTE recycling , *MICROALGAE , *CHEMICAL oxygen demand , *WASTEWATER treatment , *BIOMASS production - Abstract
Nutrient availability plays a crucial role in microalgae growth in domestic wastewater. In this study, we investigated the impact of different nitrogen and phosphorus ratios (5:1, 10:1, and 20:1, m∙m−1), and the addition of inorganic carbon on microalgae growth and nutrient uptake from domestic wastewater. Microalgae biomass achieved values ranging from 0.54 to 1.41 g·L−1. The cultivation process had maximum removal efficiencies of 83.7% for soluble chemical oxygen demand (sCOD), 74.0% for total Kjeldahl nitrogen (TKN), and 100.0% for ammonia (NH3) and orthophosphate (PO43−). All the NH3 and PO43− concentrations from domestic wastewater without supplementation were completely removed on the fourth day of cultivation. Moreover, no significant differences in microalgae growth, and NH3 and PO43− removals were observed between the conditions with and without nutrient supplementation on the fourth day of cultivation. This study has shown the feasibility of growing microalgae in domestic wastewater without any nutritional supplementation. Further investigations are required to check the long-term performance, energy requirements, and economic viability of this system for wastewater treatment and the production of nutrient-rich biomass for agricultural applications. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Implications of COD analysis use in the peracetic acid-based wastewater treatment
- Author
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Leite, Luan de Souza, primary, Tango, Mariana Daniel, additional, Filho, José Antônio Zanetoni, additional, Hoffmann, Maria Teresa, additional, and Daniel, Luiz Antonio, additional
- Published
- 2021
- Full Text
- View/download PDF
5. A missão da universidade no contexto da pandemia de COVID-19
- Author
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Tango, Mariana Daniel, de Lima, Lucimeire Pessoa, dos Santos, Ivaneli Schreinert, Grutzmann, Lidiane Fatima, Pinheiro, Paulo Jose Robles, Mena, Gabriela Oviedo, and Tiozzo, Carlos Eduardo
- Subjects
devolutiva ,university mission ,extensão universitária ,missão da universidade ,misión universitaria ,university extension ,university social feedback ,extensión universitaria - Abstract
The mission of a humanized university is to permanently engage in a dialogue with the community, in order to improve the general quality of life of the population, in the different contexts in which we live. In order to better understand the university's mission, the present study presents the institutional message, the opinions of its segments and examples of responses that USP produced over the past few months, during the COVID-19 pandemic. Through the narrative of the different speeches, there was a dissonant understanding of the participants in relation to the institution's performance in the challenging scenario. The difficulty of establishing effective communication was reflected in terms of its “identity crisis”, which probably results from the lack of a deep understanding of the institutional mission, in some of its active segments. Despite this dissonance, many of the responses found demonstrate a deep concern with maintaining the dignity of students, and the population in general. Invariably, it may be the occasion to think even more seriously about the repositioning the identity of higher education in Brazil and how to effectively conceive of a “multi-university”, defragmented and vigorous. La misión de una universidad humanizada es dialogar permanentemente con la comunidad, en el sentido de mejorar la calidad de vida general de la población, en los diversos contextos en los cuales vivimos. A fin de comprender de mejor forma la misión de la universidad, el presente estudio presentó el mensaje institucional, las opiniones de sus segmentos y ejemplos de retornos que la USP produjo a lo largo de los últimos meses, durante la pandemia del COVID-19. Por la narrativa de diversos discursos, se observó una comprensión discordante de los participantes en relación al desempeño de la institución frente al escenario desafiador. La dificultad de establecer una comunicación efectiva fue reflejada en términos de “crisis de identidad”, que resulta probablemente de la falta de compresión profunda sobre la misión institucional, en algunos de sus segmentos operacionales. A pesar de esta discordancia, muchos de los retornos constatados demuestran profunda preocupación por mantener la dignidad de los estudiantes, y de la población en general. Invariablemente, tal vez sea la ocasión de pensar aún más seriamente sobre el reposicionamiento de la identidad de la educación superior en el Brasil y en como concebir efectivamente una universidad “multiunversitaria”, desfragmentada y vigorosa. A missão de uma universidade humanizada é a de permanentemente dialogar com a comunidade, no sentido de melhoria da qualidade de vida geral da população, nos diversos contextos nos quais vivemos. A fim de melhor compreender a missão da universidade, o presente estudo apresentou a mensagem institucional, os pareceres de seus segmentos e exemplos de devolutivas que USP produziu ao longo dos últimos meses, durante a pandemia de COVID-19. Pela narrativa dos diversos discursos, observou-se compreensão dissonante dos partícipes em relação a atuação da instituição frente ao cenário desafiador. A dificuldade de se estabelecer uma comunicação efetiva foi refletida em termos de sua “crise identitária”, que resulta provavelmente da falta de uma compreensão profunda sobre a missão institucional, em alguns de seus segmentos atuantes. Apesar desta dissonância, muitas das devolutivas constatadas demonstram grande preocupação com a manutenção da dignidade dos estudantes, e da população em geral. Invariavelmente, talvez seja a ocasião de se pensar ainda mais seriamente sobre o reposicionamento identitário do ensino superior no Brasil e em como conceber efetivamente uma universidade “pluriversitária”, desfragmentada e pujante.
- Published
- 2020
6. Detection and removal of Giardia spp. cysts and Cryptosporidium spp. oocysts by anaerobic reactors in Brazil
- Author
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Valdez, Fernanda Queiroz, primary, Leite, Luan de Souza, additional, Zanetoni Filho, José Antônio, additional, Tango, Mariana Daniel, additional, and Daniel, Luiz Antonio, additional
- Published
- 2021
- Full Text
- View/download PDF
7. missão da universidade no contexto da pandemia de COVID-19
- Author
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Tango, Mariana Daniel, primary, De Lima, Lucimeire Pessoa, additional, Dos Santos, Ivaneli Schreinert, additional, Grutzmann, Lidiane Fatima, additional, Pinheiro, Paulo Jose Robles, additional, Mena, Gabriela Oviedo, additional, and Tiozzo, Carlos Eduardo, additional
- Published
- 2020
- Full Text
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8. Detection and removal of Giardia spp. cysts and Cryptosporidium spp. oocysts by anaerobic reactors in Brazil.
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Valdez, Fernanda Queiroz, Leite, Luan de Souza, Zanetoni Filho, José Antônio, Tango, Mariana Daniel, and Daniel, Luiz Antonio
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GIARDIA lamblia ,ANAEROBIC reactors ,UPFLOW anaerobic sludge blanket reactors ,CRYPTOSPORIDIUM ,OOCYSTS ,GIARDIA ,CYSTS (Pathology) ,WASTEWATER treatment - Abstract
The discharge of raw wastewater into the environment can be a contamination source of Giardia spp. cysts and Cryptosporidium spp. oocysts. The UASB (Upflow Anaerobic Sludge Blanket) reactor is the most popular technology applied for wastewater treatment in Brazil, nevertheless there is little information concerning its capacity for (oo)cyst removal. In this context, this study investigated the occurrence and removal of Giardia spp. cysts and Cryptosporidium spp. oocysts by three different UASB reactors (i.e. Reactor A, B, and C) treating different wastewater types. In the wastewater influent, the concentration varied from 493.3 to 14,000 cysts·L
-1 for Giardia spp. and from 'not detected' to 53.3 oocysts·L-1 for Cryptosporidium spp.. The (oo)cyst concentration increased after the anaerobic treatment in Reactors A and B, while Giardia spp. log-removal of 0.5 ± 0.2 was found in Reactor C. The increment in (oo)cyst concentration may happened due to the inefficacy for (oo)cyst removal by the specific UASB reactor and/or due to the reduction of matrix interference for reactor effluent samples in the detection method. The results suggest that hydraulic retention time (HRT) may be the key parameter for Giardia spp. removal by the UASB reactor. Furthermore, no parameter analysed (physical-chemical and indicator microorganisms) showed a common correlation with the (oo)cyst concentration in the three UASB reactors. Considering that official data of cryptosporidiosis and giardiasis cases are rarely reported in Brazil, monitoring Giardia spp. cysts and Cryptosporidium spp. oocysts in wastewater could be an alternative to estimate the occurrence of diseases in the served population. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
9. Microalgae cultivation in agro-industrial effluents for biodiesel application: effects of the availability of nutrients
- Author
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Tango, Mariana Daniel, primary, Calijuri, Maria Lúcia, primary, Assemany, Paula Peixoto, primary, and do Couto, Eduardo de Aguiar, primary
- Published
- 2018
- Full Text
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10. Cultivation of microalgae in effluents from meat processing industry in bubble column type photobioreactor
- Author
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Tango, Mariana Daniel, Calijuri, Maria do Carmo, and Calijuri, Maria Lúcia
- Subjects
Microalgas ,Resíduos industriais ,Engenharia Sanitária ,Energia - fontes alternativas ,Biocombustível ,Carne - Insdústria - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior O presente estudo teve por objetivo a avaliação do cultivo de microalgas em fotobiorreator do tipo coluna de bolhas, com a utilização de efluentes da indústria de beneficiamento de carnes, previamente tratados em nível primário e secundário. Scenedesmus sp. foi o gênero dominante da comunidade fitoplanctônica em ambos os efluentes avaliados. As maiores concentrações de biomassa, de 940 e 1.160 mg SSV/L, foram verificadas pelo cultivo em efluente primário, para as relações N/P de 4,8 e 15,8, respectivamente. Verificou-se a remoção satisfatória de N-NH 4+ e PS em todas as operações, atingindo eficiências de 86-100% e 33-100%, respectivamente. Enquanto se observou a remoção rápida de COD no efluente primário (52,7-74,5%), houve incremento de COD no efluente secundário (1,6-75,1%). Como a biomassa cultivada em ambos os efluentes avaliados apresentou baixo conteúdo lipídico (< 10%), a maior produtividade lipídica verificada no efluente primário, de até 3,7 g/m2.d, foi atribuída à sua maior produção de biomassa em relação ao efluente secundário. O desempenho energético do sistema foi avaliado em termos da produtividade específica de biomassa, P B /E C (mg/kJ), definida como a produtividade de biomassa por input energético e pela taxa energética líquida (NER), que relaciona a energia total produzida e a energia total consumida pelo sistema. Ambos os efluentes avaliados resultaram em valores de NER (biomassa e lipídios) e P B /E C reduzidos, indicando o baixo desempenho energético do sistema. Uma das maiores limitações verificadas foi o elevado consumo energético advindo da agitação do meio pelo compressor de ar utilizado. Ao menos que sejam exploradas as diversas possibilidades de redução do consumo energético e aumento do conteúdo lipídico, a utilização da biomassa produzida pelo cultivo nos efluentes avaliados deve ser direcionada a outro aproveitamento que não a produção de biodiesel. The present study aimed to evaluate the cultivation of microalgae in bubble column type photobioreactor, with the use of effluents from meat processing industry, previously treated in primary and secondary level. Scenedesmus sp. was the dominant genre of the phytoplankton community in both evaluated effluents. The largest concentrations of biomass, 940 and 1.160 mg VSS/L, were verified by cultivation in primary effluent, for N/P ratios 15.8 and 4.8, respectively. It was found a satisfactory removal of N-NH 4+ and soluble P in all operations, achieving efficiencies of 86-100% and 33-100%, respectively. While a quick removal of DOC in the primary effluent (52.7-74.5%), there was an increase of DOC in secondary effluent (1.6-75.1%). As the biomass grown in both evaluated effluents presented a low lipidic content (
- Published
- 2015
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