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poster - International Conference of Agricultural Engineering

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<strong>of</strong> 0, 6 g, 0.8 g and 1.0 g respectively. The apparent color removal was 99.1% for the<br />

coagulant solution and 71.9%, 86.7% and 97.8% respectively for pouches containing 0.6 g,<br />

0.8 g and 1.0 g <strong>of</strong> powdered seeds.<br />

Regarding the protein content, the coagulant solution and the pouches <strong>of</strong> 0.6 g, 0.8 g<br />

and 1.0 g presented respectively: 47.07 mg L -1 , 29.53 mg L -1 35.17 mg L -1 and 47.47 mg L -1 ,<br />

which shows that the turbidity and apparent color reduction is proportional to protein<br />

concentration.<br />

4. CONCLUSION<br />

The use <strong>of</strong> coagulant extracted from Moringa oleifera, as powdered seeds enclosed<br />

in pouches, was satisfactory. Although there was no significant difference between the<br />

coagulant solution and the 1.0 g and 0.8 g pouches, the indexes <strong>of</strong> turbidity and apparent<br />

color removal showed that the behavior <strong>of</strong> the 1.0 g pouch is closer to the coagulant solution<br />

than the 0.8 g pouch. The coagulant solution and the 1.0 g pouch presented 97% turbidity<br />

and apparent removal and the 0.8 g pouch presented efficiency below 87%.<br />

4. ACKNOWLEDGEMENTS<br />

The authors thank FAPESP (Processes: 10/16223-0, 10/09395-0 e 08/53066-0) for<br />

financial support for the research.<br />

5. REFERENCES<br />

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Arantes, C.C. Utilização de coagulantes naturais à base de sementes de Moringa oleifera e<br />

tanino como auxiliares da filtração em mantas não tecidas. (2010). Dissertação (Mestrado) –<br />

Faculdade de Engenharia Civil, Universidade Estadual de Campinas, Campinas, 2010.<br />

Lowry, O. H., Rosebrough, N. J., Farr, A. L. & Randall, R. J. (1951) .Protein measurement<br />

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oleifera Lam e sua utilização no tratamento de água de abastecimento. Maringá (2010).<br />

Tese (Doutorado) – Universidade Estadual de Maringá, Maringá, 2010.<br />

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Turbidez e Cor Variáveis. (1989) Tese (Doutorado) - Escola de Engenharia de São Carlos.<br />

Universidade de São Paulo, São Carlos, 1989.<br />

Ndabigengesere, A., Narasiah, K.S. & Talbot, B.G. (1995). Active agents and mechanism <strong>of</strong><br />

coagulation <strong>of</strong> turbid waters using Moringa oleifera. Water Research, 29 (2), 703-710.<br />

Okuda, T., Baes, A. U., Nishijima, W. & Okada, M. Improvement <strong>of</strong> extraction method <strong>of</strong><br />

coagulation active components from Moringa oleifera seed. Water Research, 33 (15), 3373-<br />

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Paterniani, J. E. S., Ribeiro, T. A. P., Mantovani, M. C. & Sant’anna, M. R. (2010). Water<br />

treatment by sedimentation and slow fabric filtration using Moringa oleifera seeds. African<br />

Journal <strong>of</strong> <strong>Agricultural</strong> Research, 5 (11), 1256-1263.<br />

Pritchard, M., Craven, T., Mkandawire, T., Edmondson, A. S. & O’neill, J. G. (2010). A<br />

comparison between Moringa oleifera and chemical coagulants in the purification <strong>of</strong> drinking<br />

water – An alternative sustainable solution for developing countries. Physics and Chemistry<br />

<strong>of</strong> the Earth, 35, 798-805, 2010<br />

Ramos, R. O. Clarificação de água com turbidez baixa e cor moderada utilizando sementes<br />

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Universidade Estadual de Campinas, Campinas, 2005.

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