Conventional coagulants like aluminium sulphate carry health concerns, which has driven interest in natural alternatives. This study focused on the preparation side of using Moringa oleifera seeds as a coagulant for dye wastewater — specifically, how to dry and extract the seeds for best results.
Published in an open-access Journal of Physics: Conference Series volume, the team oven-dried moringa seeds at 40, 50 and 60°C and fitted the drying data to five thin-layer kinetic models to find the optimal conditions.
Key findings
- Drying temperature and time materially affect the quality of the extracted coagulant.
- The Page kinetic model best described moringa seed drying behaviour.
- Proper drying plus protein extraction yields a more effective natural coagulant for dye-laden wastewater.
Caveat: focused on preparation and drying kinetics rather than final treatment percentages; downstream performance depends on the specific effluent.
Summary of: Ibrahim, M. et al. (2021). “Drying And Extraction of Moringa Oleifera And Its Application In Wastewater Treatment.” J. Phys.: Conf. Ser., 2120, 012002. DOI: 10.1088/1742-6596/2120/1/012002. Summarised by MORIFA; full paper via the link above.