Chemical coagulants like alum are effective but can accumulate in pipelines and pose long-term health and environmental risks. This study, in an open-access IOP Conference Series volume, looked at plant-based alternatives for surface-water treatment.
Moringa oleifera and maize seeds were selected as natural coagulants because both are locally available, and their efficiency in clarifying surface water was assessed.
Key points
- Moringa and maize seeds were tested as locally available, plant-based coagulants.
- The approach offers a sustainable substitute for chemical coagulants in surface-water treatment.
- Combining plant materials explores cost and performance benefits.
Why it matters for MORIFA: Blending moringa with another local crop (maize) points to formulated, lower-cost coagulant products — a route to differentiated moringa-based water-treatment offerings.
Caveat: a surface-water coagulation study; optimal blend ratios depend on the water treated.
Summary of: (2023). “Treatment of wastewater by moringa-maize coagulant.” IOP Conf. Ser.: Earth Environ. Sci., 1140, 012010. DOI: 10.1088/1755-1315/1140/1/012010. Summarised by MORIFA; full paper via the link above.