Comparison of single-step and two-step purified coagulants from Moringa oleifera seed for turbidity and DOC removal

• Published in: Bioresource technology Vol. 101; no. 15; pp. 6259 - 6261
• Main Authors: Sánchez-Martín, J., Ghebremichael, K., Beltrán-Heredia, J.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2010; [New York, NY]: Elsevier Ltd; Elsevier
• Subjects: Biological and medical sciences; Chemical Fractionation - methods; Coagulation–flocculation; Drinking water; Fundamental and applied biological sciences. Psychology; Moringa oleifera; Moringa oleifera - chemistry; Nephelometry and Turbidimetry - methods; Oxygen - chemistry; Oxygen - isolation & purification; Plant Extracts - chemistry; Plant Extracts - isolation & purification; Plant Proteins - chemistry; Plant Proteins - isolation & purification; Turbidity removal; Viscosity; Netherlands; Belgium, Meuse R; Drinking water; Coagulation–flocculation; Turbidity removal; Moringa oleifera; Coagulation; Multipurpose tree; Coagulation-flocculation; Coagulant; Dicotyledones; Flocculation; Angiospermae; Turbidity; Moringaceae; Spermatophyta
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2010.02.072

The coagulant proteins from Moringa oleifera purified with single-step and two-step ion-exchange processes were used for the coagulation of surface water from Meuse river in The Netherlands. The performances of the two purified coagulants and the crude extract were assessed in terms of turbidity and DOC removal. The results indicated that the optimum dosage of the single-step purified coagulant was more than two times higher compared to the two-step purified coagulant in terms of turbidity removal. And the residual DOC in the two-step purified coagulant was lower than in single-step purified coagulant or crude extract.