How moringa seed is prepared affects how well it works as a coagulant. This study compared shelled and unshelled Moringa oleifera seed for clarifying turbid water under identical conditions.
Raw turbid water was treated with 50 mL of moringa aqueous solution (prepared at 40 g/L) using shelled and unshelled seed, then analysed for turbidity, total dissolved solids (TDS) and total suspended solids (TSS).
Key findings
- Unshelled moringa removed 98% of turbidity; shelled removed 96%.
- Residual turbidity reached 19 NTU (unshelled) versus 38 NTU (shelled).
- Both forms substantially lowered TDS and TSS — both are effective coagulants.
Why it matters for MORIFA: Practical preparation guidance — both shelled and unshelled work, with a small edge to unshelled — is useful detail we can share with water-treatment buyers about how to use our seed.
Caveat: a single turbid-water comparison; optimal dosing varies with source-water turbidity.
Summary of: Nwoke, H. (2018). “Comparative Analysis on the Coagulating Ability of Shelled and Unshelled Moringa Seed in Water Treatment.” Independent study summarised by MORIFA; full paper via the PDF link above.