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has been cited by the following article:

• TITLE: Evaluation of the Opuntia dillenii as Natural Coagulant in Water Clarification: Case of Treatment of Highly Turbid Surface Water

  AUTHORS: Yéwêgnon Alima Esther Irma Nougbodé, Cokou Pascal Agbangnan, Alain Yaya Koudoro, Comlan Achille Dèdjiho, Martin Pépin Aïna, Daouda Mama, Dominique Codjo Koko Sohounhloué

  KEYWORDS: Natural Coagulant; Opuntia dillenii; Lime; Phytochemical Screening; Turbidity; Suspended Solids

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.5 No.12, December 25, 2013

  ABSTRACT: This study was performed in laboratory scale and consisted of the using of aqueous Opuntia dillenii solution for the clarification of very turbid surface water (Turbidities varying between 186 NTU and 418 NTU). This plant from Cactaceae family was used as a natural coagulant for the different clarification tests. The preliminary phytochemical Screening of the powder of this plant showed that it contains tanins, saponins and mucilages. Flocculation and coagulation tests showed that Opuntia dillenii can be used in highly turbid water treatment. The removal efficiency varied from 89% to 93% for the turbidity and suspended solids, and from 4% to 15% for the obvious color in water when we used the optimum values of this natural coagulant (1 mL to 10 mL). The successive addition of this natural coagulant and the lime, gave a better elimination of turbidity and suspended solids, and a good reduction for the color. The removal efficiency of the turbidity and suspended solids became more than 95% and the one of the color between 67% and 94%.