Otimização de processos físico-químicos na remoção de fósforo de esgotos sanitários por processos de precipitação química com cloreto férrico

Marguti, André Luiz; Filho, Sidney Seckler Ferreira; Piveli, Roque Passos

doi:10.1590/s1413-41522008000400008

Cited by 7 publications

(4 citation statements)

References 5 publications

(5 reference statements)

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“…Grisolia et al (2005), for example, conducted physicochemical tests on a raw sewage effluent, finding BOD 5 and COD data similar to those from this study; however, the total nitrogen and phosphorus were, respectively, 1.62 and 16.56 times higher than those of the current study (nitrogen = 18.11 ± 4.29 mg/L, phosphorus = 0.32 ± 0.17 mg/L). In the studies by Marguti et al (2008) and Rodrigues et al (2009), the phosphorus and nitrogen data were also higher than those of this study. Moreover, when comparing the COD and BOD 5 data obtained by Passamani et al (2014), the BOD 5 values were similar, but the COD values were 1.48 times higher.…”

Section: Resultscontrasting

confidence: 77%

Assessment of phytoremediation potencial of Allium cepa L. in raw sewage treatment

et al. 2020

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Abstract Whereas the effects of the substances found in domestic sewage on live organisms is important to evaluate the use of plants to remove pollutants from the environment. The objective of this study was to assess the phytoremediation activity of Allium cepa L. (onion) roots exposed to raw sewage, as well as the acute toxic activity of this effluent for the bioindicators A. cepa, through a cytotoxicity test, and Artemia salina L., through a mortality/immobility test. The physicochemical assessments of the sewage were conducted in two scenarios: immediately after collection and after being in contact with onion roots (phytoremediation) for 24 hours. The physicochemical data indicate there was a reduction in nitrogen and phosphorus levels and in biochemical oxygen demand in sewage treated. The results from the cytotoxicity test with A. cepa indicated a reduction in the mitotic cell divisions of the onions treated with the raw sewage. The mortality/immobility test with A. salina indicated that the concentrations with 50 and 100% of raw sewage induced the mortality of the nauplii. Thus, the data suggest new studies that seek greater efficiency, efficacy and viability of onion phytoremediation.

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Section: Resultscontrasting

confidence: 77%

Assessment of phytoremediation potencial of Allium cepa L. in raw sewage treatment

et al. 2020

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“…A utilização de coagulantes para polimento do efluente de lagoas de estabilização apresenta-se atualmente como uma solução rápida e de baixo custo de implantação, podendo produzir efluentes de excelente qualidade. Aliado ao polimento físico-químico, Estudos semelhantes aplicados para pós-tratamento de esgoto sanitário utilizando coagulantes químicos, além da reutilização de lodo como coagulante, foram investigados por Marguti et al, (2008), Gualberto, (2009, Tyagi et al, (2010), Nair;Ahammed, (2015) e Oladoja, (2015).…”

Section: Sulfatounclassified

Floco-sedimentação seguida de processos de separação por membranas para tratamento de efluentes de lagos de estabilização visando o reuso

Fabro¹

2023

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Editora Direitos para esta edição cedidos à Atena Editora pelos autores. Open access publication by Atena Editora Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo do texto e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterála de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…Somente o porto de Paranaguá recebeu de janeiro a outubro 8,4 bilhões de toneladas de fertilizantes por via marítima (Silva e Fernandes, 2018 (Pantano et al, 2016). Não esquecendo que esses elementos estão entre os principais nutrientes que limitam a produtividade primária de grãos na agricultura, sendo assim a disponibilidade dos mesmos também influencia a variedade e abundância dos organismos aquáticos (Marguti, Ferreira Filho, Piveli, 2008).A emissão antrópica de nutrientes (N e P), para muitos ecossistemas aquáticos, vem superando de forma quantitativa as emissões naturais (Molisani et al, 2013).…”

Section: Introductionunclassified

Anthropic Evaluation in the Paraná Coast Through the Ion Phosphate Concentration Determination in Water Resources

Silva¹,

Rocha²

2020

PTQ

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The increase in pollution in water resources comes from practically all human activities, whether domestic, commercial, or industrial. The environment cannot absorb all pollutants, as each of these economic activities generates specific pollutants, which have certain environmental implications and directly affect the quality of any water resource. Population growth is another factor that leads to an increase in the generation of waste, of which domestic sewage, rich in nutrients and, when deposited irregularly, causes an imbalance in the water body that can be highlighted. This study aimed to identify the concentration of the phosphorus element in the form of the phosphate ion in the water resources of the coast of Paraná. To quantify this element, the spectrophotometric method of molybdenum blue was used. Samples from ten points of continental waters in the coastal region were evaluated, which suffer a greater or lesser anthropic influence. Tests were carried out from August 2017 to May 2019. In the analytical methodology, solutions of ammonium molybdate, ascorbic acid, nitric acid, and glycerin were used. When these solutions are mixed in samples or standard solutions that contain the element phosphorus, there is the formation of the blue molybdenum complex. Five repetitions were performed in each of the samples so that, in the end, the average value of the measurements was obtained. It was observed that the phosphorus concentrations through the phosphate ion showed results above 0.150 mg L-1, the maximum value of this macronutrient in water samples, recommended by the legislation, except for the result obtained in point 8 in November, whose concentration was 0.08 mg L-1. The results showed, therefore, that there is pollution in the sampled continental waters. As a consequence, it is possible to highlight that the high concentration of phosphate ion in the samples comes from human action, especially in those rivers that are closer to urban contingents.

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Otimização de processos físico-químicos na remoção de fósforo de esgotos sanitários por processos de precipitação química com cloreto férrico

Cited by 7 publications

References 5 publications

Assessment of phytoremediation potencial of Allium cepa L. in raw sewage treatment

Assessment of phytoremediation potencial of Allium cepa L. in raw sewage treatment

Floco-sedimentação seguida de processos de separação por membranas para tratamento de efluentes de lagos de estabilização visando o reuso

Anthropic Evaluation in the Paraná Coast Through the Ion Phosphate Concentration Determination in Water Resources

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