How moringa coagulant is extracted strongly affects its performance. This study extracted the coagulant from Moringa oleifera seed using a salt (1M NaCl) solution and optimised the conditions for treating water.
Moringa seed powder was extracted with NaCl solution, then tested across a range of pH values (4–10) and coagulant doses (10–80 mL/L), measuring total suspended solids (TSS) and chemical oxygen demand. The extract was also characterised for composition.
Key findings
- Salt (NaCl) extraction produced an effective coagulant, with performance tunable by pH and dose.
- The extract was rich in protein (about 3348 ppm) and contained 14 amino acids, lysine being the most abundant.
- It reduced suspended solids and organic load in the treated water.
Caveat: a lab extraction-optimisation study; commercial use needs scale-up of the salt-extraction step.
Summary of: (2019). “Utilization of NaCl Solution of Moringa Seed Extract as Natural Coagulant.” DOI: 10.18860/al.v4i1.3141. Summarised by MORIFA; full paper via the link above.
