Natural coagulants in water clarification
Powdered seed suspensions of the Moringa oleifera tree have proved effective as a primary coagulant to clarify a stable kaolinite suspension. Acting as a cationic polyelectrolyte optimum minimum dosage to achieve maximum turbidity removal have been determined over a range of initial turbidity value...
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Main Authors: | , , |
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Format: | Default Conference proceeding |
Published: |
1987
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Subjects: | |
Online Access: | https://hdl.handle.net/2134/30433 |
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Summary: | Powdered seed suspensions of the Moringa oleifera tree have proved effective as a primary coagulant to clarify a stable kaolinite suspension. Acting as a cationic polyelectrolyte optimum minimum dosage to achieve maximum turbidity removal have been determined over a range of initial turbidity values (50-550NTU). The weight ratio of seed dosage to clay concentration appears independent of initial clay concentration. A field usable dissolved air flotation system has been developed. This technique, when applied to a kaolinite/bentonite model suspension, produced clear water in minutes as opposed to hours for conventional sedimentation. Topics for further investigation are outlined. |
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