CLARIFICATION OF WATER WITH LOW TURBIDITY AND MODERATE COLORUSING MORINGA OLEIFERA SEEDS
DOI:
https://doi.org/10.18011/bioeng2008v2n3p193-200Keywords:
water quality, purification, coagulationAbstract
The specie Moringa oleifera stands out as one of the most promising sources of natural coagulantsand it is an alternative coagulant to use instead of aluminum salts and iron salts objectivizing toeliminate particles in suspension on water. The present project set out to comparative study of thefast mixture conditions and flocculation conditions (mean average speed gradient and agitationtime), concerning color removal and turbidity removal by sedimentation after 15, 30, 60, 90 or 120min. The sampling waters were collected in the summer months and they presented low turbidityand moderate color. static reactors of 2 L capacity were used in essays that analyzed these followingparameters: aparent color and remaining turbity. Basing on results of experimental work made,itÂ's proposed use the M. oleifera seeds powder extracted coagulant to promote water clarificationby filtration.
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FOLKARD, G. SUTHERLAND, J. Developmentof a naturally derived coagulant for water andwastewater treatment. Water Science &Technology: water supply, London, UK,v.2, n. 5-6, p.89-94, 2002
JAHN, S.A.A. Using Moringa seeds as coagulantin developing countries. Journal of the AmericanWater Works Association, Denver, CO, v. 6, p.43-50, 1988.
MUYIBI, S.A.; EVISON, L.M. Optimizing physicalparameters affecting coagulation of turbid waterwith Moringa oleifera seeds. Water Research,Oxford, NY, v.29, n. 12,p. 2689-2695, 1995.
NDABIGENEGESERE, A.; NARASIAH, K.S.,TALBOT, B.G. Active agents and mechanism ofcoagulation of turbid waters using Moringaoleifera. Water Research, Oxford, NY, v. 29, n.2, p. 703-710, 1995.
OLSEN, A. Low technology water purification bybentonite clay and Moringa oleifera seedflocculation as performed in sudanese villages:effects on Schistossoma mansoni cercariae..,Water Research, Oxford, NY, v. 21, n. 5, p. 517-522, 1987.
OKUDA, T.; BAES, A.U.; NISHIJIMA, W.;OKADA, M. Isolation and characterization ofcoagulant extracted from Moringa oleifera seedby salt solution. Water Research, Oxford, NY,v.35, n. 2, p. 405-410, 2001.
OKUDA, T.; BAES, A.U.; NISHIJIMA, W.;OKADA, M. Coagulation mechanism of saltsolutin-extracted active component in Moringaoleifera seeds. Water Research, Oxford, NY,v.35, n. 3 p. 830-834, 2001.
POLLARD, S. J.; THOMPSON, F. E. ;MCCONNACHIE, G. L. Microporous carbonsfrom Moringa oleifera husks for water purificationin less developed countries. Water Research,Oxford, NY, v. 29, 337-347, 1995.
RAMOS, R. O. Clarificação de água comturbidez baixa e cor moderada utilizandosementes de M. oleifera. Campinas/SP, 2005.276p. Tese (Doutorado)- Faculdade deEngenharia Agrícola-UNICAMP
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Copyright (c) 2014 RENATA O. RAMOS, JOSÉ E. S. PATERNIANI, HENRI R. ZUMERLY
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